公开(公告)号：WO1989005741A1

公开(公告)日：1989-06-29

申请号：PCT/US1988000903

申请日：1988-03-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  PURCELL, Robert, J. ,  SIMMONS, Gerald, P. ,  FARRIS, Robert, R.

IPC: B60G05/06

CPC classification number: B60T1/065 ,  B62D55/1125 ,  B62D55/305

Abstract: A track-type vehicle (10) capable of high speed operation over rough terrain includes a frame (12) supported by lefthand and righthand suspension mechanisms (17) individually having a plurality of hydropneumatically actuated struts (50, 120, 136, 166) for supporting the frame (12) on a plurality of wheels (24, 26, 98, 100, 158, 160). An elastomeric drive belt (22) is entrained about these wheels and is frictionally driven by an elevated drive wheel (18). Forces from several struts (50, 136, 166) are directed into the frame (12) in a centralized common region (190) which minimizes rocking of the vehicle. A front idler wheel (24) is urged forwardly and downwardly against the drive belt (22) by a hydropneumatically actuated recoil mechanism (106), and a front strut (50) also acts on the front idler wheel (24) to resiliently urge it downwardly. A plurality of pivoting members (54, 66, 80, 94, 148, 154, 178) are cooperatively connected to the struts to more evenly distribute forces against the drive belt (22).

公开(公告)号：WO1989005740A1

公开(公告)日：1989-06-29

申请号：PCT/US1988000900

申请日：1988-03-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  PURCELL, Robert, J. ,  FARRIS, Robert, R.

IPC: B60G05/06

CPC classification number: B62D55/116 ,  B62D49/065 ,  B62D55/305

Abstract: A suspension system (18) for a vehicle (10) equipped with a pair of belts (117) arranged on opposite lateral sides of the vehicle's frame (14) wherein each belt (117) is entrained about an elevated drive wheel (24), a front (64) and a rear idler wheel (42), and roller wheels (50, 90) arranged longitudinally between the idler wheels (42, 64). Resilient front (38), intermediate (36), and rear (34) struts connected respectively between the frame (14) and a support apparatus (28) of which the front idler (64) comprises a portion, between the frame (14) and one set of roller wheels (50), and between the frame (14) and the rear idler wheel (42) provide the vertical support for the vehicle's frame (14). Fluid interconnection of the front struts (38) provides lateral load sharing during low speed vehicle operation and, during high speed vehicle operation, fluid interconnection of each front strut (38) with its own accumulator (122) provides independent suspension. Selective fluid interconnection of the rear strut (34) whith a recoil strut (70) which provides the desired belt tension maintains belt (117) to wheel engagement for high speed vehicular operation. Selective fluid isolation of the rear strut (34) and a pry-out strut (100) connected between the recoil strut (70) and a pivoting beam (68) on which the front idler (64) is mounted enables application of the maximum vertical forces on vehicle attached implements (136).

公开(公告)号：WO1989001894A1

公开(公告)日：1989-03-09

申请号：PCT/US1987002674

申请日：1987-10-19

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  GEE, James, Edgar ,  TONSOR, Andrew, James ,  NELSON, David, Eric ,  SATZLER, Ronald, Lee

IPC: B62D55/06

CPC classification number: B62D55/15 ,  B62D55/08 ,  B62D55/0842 ,  B62D55/305

Abstract: A vehicle (10) such as a combine harvester or the like includes a main frame (12) and first and second undercarriages (18, 20) for supporting the main frame (12) and individually having front and rear wheel assemblies (24, 22) and a track (26) encircling the wheel assemblies. A suspension structure (28) therefore includes a laterally spaced apart pair of pivot joints (34) adjacent the front wheel assemblies (24) for pivotally connecting the undercarriages to the main frame, and a coupling assembly (38) adjacent the rear wheel assemblies (22) for centrally supporting the main frame on the undercarriages. A hydraulic motor (126) powerably rotates each of the rear wheel assemblies (22) and an inside support device (171) is provided therefor that includes a stabilizing beam (180). The coupling assembly (38) includes an equalizer bar (206) having outer ends (214), and the stabilizing beam (180) extends rearwardly beyond the driven rear wheel assemblies (22) for connection to the outer ends (214). Also, an outside support device (170) releasably clamps the rear wheel assemblies (22) to the undercarriages (18, 20).

公开(公告)号：WO1989001137A1

公开(公告)日：1989-02-09

申请号：PCT/US1987002601

申请日：1987-10-09

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  GUDAT, Adam, John

IPC: G01G19/10

CPC classification number: G01G19/10 ,  B60G2300/026 ,  B60G2400/61 ,  B60G2600/04

Abstract: In the field of off-highway trucks, overloading and disproportionate load placement lead to undesirable vehicle stresses. The present invention pertains to an apparatus (10) for displaying the distribution of the load, in an off-highway truck, to both the truck operator and the loader operator. The information is conveyed to the operators using displays (77) having varying color ranges generally indicative of the load in portions of the dump body (24) of the truck. Using this tool the truck operator attains optimum positioning of the truck prior to and during the loading cycle, while the loader operator directs loads to portions of the dump body (24) having lower displayed loads.

Abstract translation: 在非公路卡车领域，超载和不成比例的载荷放置导致不合需要的车辆压力。 本发明涉及一种用于在非公路卡车上显示负载分配给卡车操作员和装载操作者的装置（10）。 使用显示器（77）将信息传达给操作者，所述显示器（77）具有通常指示卡车的倾卸车身（24）的部分的负载的变化的颜色范围。 使用该工具，卡车操作者在加载循环之前和加载周期期间实现卡车的最佳定位，而装载机操作者将负载引导到具有较低显示载荷的倾卸体（24）的部分。

公开(公告)号：WO1988005483A1

公开(公告)日：1988-07-28

申请号：PCT/US1987003157

申请日：1987-11-30

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  DIEKEVERS, Mark, Steven ,  FIDLER, Jerry, Dale ,  JENSEN, Brian, D.

IPC: E02F09/28

CPC classification number: E02F9/2841

Abstract: Pin retainer assembly having a keeper means for retaining earthworking tips on adapters. Positive retention of earthworking tips on their adapters by their retaining pins during its work cycle is extremely important from an operational as well as a cost standpoint. The loss of the tips materially affect productions in addition to the time consuming expense of replacement of repair of the components. Not only must the tips be adequately retained, they must be capable of quick removal for replacement purposes. Keeper means (44) for the pin (17) is captured in a recess (28) between a nose (16) of the adapter (12) and a sidewall (36) of the tips (14) and includes a washer (46) slidably disposed on the pin (17) and a resilient retaining ring (68, 78) having a predetermined radial thickness disposed in locking engagement in a groove (21) on the pin (17) and a groove (50) of the washer (46). One of the grooves (21, 50) in the pin (17) and the washer has a depth equal to or greater than the predetermined radial thickness of the retaining ring (68, 78) and the other one of the grooves (21, 50) has a depth sufficient to prevent camming of the ring (68, 78) out of the groove (21, 50) and to provide substantially the maximum cross-section width of the ring (68, 78) in shear. In order to disassemble the pin (18), the ring (68, 78) must be sheared or the washer (46) fractured.

Abstract translation: 销保持器组件具有用于将接地尖端保持在适配器上的保持器装置。 从工作和成本的角度来看，通过固定销在其工作周期内将土方工作技巧保持在其适配器上是非常重要的。 除了更换零件修理费用的费用之外，提示的丢失也会严重影响生产。 这些技巧不仅必须得到充分保留，还必须能够快速拆卸以便更换。 销（17）的保持器装置（44）被捕获在适配器（12）的鼻部（16）和尖端（14）的侧壁（36）之间的凹部（28）中，并且包括垫圈（46） 可滑动地设置在所述销（17）上的弹性保持环（68,78）和具有预定径向厚度的弹性保持环（68,78），所述预定径向厚度与所述销（17）上的凹槽（21）锁定接合并且所述垫圈（46）的凹槽 ）。 销（17）中的凹槽（21,50）中的一个和垫圈的深度等于或大于保持环（68,78）的预定径向厚度，另一个凹槽（21,50） ）具有足以防止环（68,78）从凹槽（21,50）中凸出的深度并且基本上在剪切中提供环（68,78）的最大横截面宽度的深度。 为了拆卸销（18），环（68,78）必须被剪切或垫圈（46）断裂。

公开(公告)号：WO1988005025A1

公开(公告)日：1988-07-14

申请号：PCT/US1987000332

申请日：1987-02-19

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  DAVENPORT, Richard, G. ,  SMITH, Duane, R. ,  COBB, Raymond, P.

IPC: B66D05/26

CPC classification number: B66D5/26 ,  F16D55/32 ,  F16D59/02

Abstract: In order to overcome the disadvantage of overspinning of a winch drum (16) when a disconnect device (70) adjacent the drum is disengaged, a drag brake apparatus (132) is provided for limitedly restricting the rotation of the drum when an actuator (136) having a braking element (135) is continually urged against the drum by a spring (152). A control mechanism (155) includes a control lever assembly (157) movable to operate a hydraulic valve assembly (197) for the primary control of the winch drum (16), and movable to operate an associated valve (219) for controllably directing pressurized fluid to the actuator for supplementing the spring force. Thus, a first drag brake mode can be attained for substantially freespool operation of the drum, and a second drag brake mode can be attained for controlled load dropping operation of the drum.

公开(公告)号：WO1988004494A1

公开(公告)日：1988-06-16

申请号：PCT/US1987000601

申请日：1987-03-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  ALENDUFF, Phillip, D. ,  CRUMP, Richard, A. ,  PORTER, Gregory, J.

IPC: H02P09/00

CPC classification number: H02J3/48

Abstract: The apparatus reduces the peak electrical demand of a predetermined user operational unit (18) from an electrical power distribution network (14) by controllably operating at least one secondary electrical generator (24) associated with the operational unit (18) in parallel with the utility network (14). A transducer (20) senses the actual peak power demand of the operational unit (18) from the utility network (14) and produces a demand signal having a value responsive to the sensed actual peak power demand. A memory element (40) controllably stores a plurality of control parameters including a demand setpoint value. A logic device (36) controllably produces the transfer command signal and connects the generator (24) in parallel with the utility network (14) in response to the value of the demand signal exceeding the value of the demand setpoint. The logic device (36) controls the generator (24) to produce only the amount of power necessary to maintain the demand signal at or below the demand setpoint value.

Abstract translation: 该装置通过与实用程序并行地可控地操作与操作单元（18）相关联的至少一个次级发电机（24）来减小来自配电网络（14）的预定用户操作单元（18）的峰值电力需求 网络（14）。 换能器（20）感测来自公用事业网络（14）的操作单元（18）的实际峰值功率需求，并产生具有响应于感测的实际峰值功率需求的值的需求信号。 存储元件（40）可控地存储包括需求设定点值的多个控制参数。 逻辑设备（36）可控制地产生传送命令信号，并且响应于超过需求设定值的值的需求信号的值，将发生器（24）与公用事业网络（14）并联连接。 逻辑装置（36）控制发电机（24）仅产生将需求信号维持在或低于需求设定点值所需的功率量。

公开(公告)号：WO1988003652A1

公开(公告)日：1988-05-19

申请号：PCT/US1987000107

申请日：1987-01-27

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  BITAR, Ali ,  GUDAT, Adam, J. ,  HUGGINS, Brian, D. ,  JACOBSON, Wesley, E. ,  SZENTES, John, F.

IPC: G01R27/04

CPC classification number: F15B15/2869 ,  G01D5/48 ,  G01R23/07 ,  H01P7/04

Abstract: A pair of loop antennas (40, 44) mounted internal to an extensible coaxial cavity (20) respectively transmit and receive electromagnetic signals in the radio frequency range exciting a transverse electromagnetic field in the cavity (20) when the frequency of the signal corresponds to the resonant frequency of the cavity (20). The resonant frequency of the cavity (20) is primarily dependent upon the longitudinal length of the cavity (20). Therefore, a voltage controlled oscillator (36) acts under the control of a sawtooth voltage waveform of a function generator (28) to controllably deliver a variable frequency signal to the first loop antenna (40). An RF detector (47) monitors the second loop antenna (44) for an indication that the resonant frequency has been reached. At resonance a microprocessor (68) samples the output of the VCO (36) and correlates the resonant frequency to the length of the coaxial cavity (20).

Abstract translation: 安装在可扩展同轴腔（20）内部的一对环形天线（40,44）分别在射频频率范围内发射和接收激励腔（20）中的横向电磁场的电磁信号，当信号的频率对应于 空腔（20）的谐振频率。 空腔（20）的谐振频率主要取决于空腔（20）的纵向长度。 因此，压控振荡器（36）作用在函数发生器（28）的锯齿波电压波形的控制下，以可控地将可变频率信号传送到第一环形天线（40）。 RF检测器（47）监测第二环形天线（44）以获得达到谐振频率的指示。 在共振时，微处理器（68）对VCO（36）的输出进行采样，并将谐振频率与同轴腔（20）的长度相关联。

公开(公告)号：WO1988002449A1

公开(公告)日：1988-04-07

申请号：PCT/US1986002701

申请日：1986-12-16

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  BLAKE, William, W.

IPC: F16D25/11

CPC classification number: F16D48/0206 ,  F02M61/166 ,  F02M61/168 ,  F02M61/18 ,  F16D48/02 ,  F16D48/04 ,  F16D2048/0224 ,  F16D2048/0251 ,  F16D2048/0272 ,  Y10T29/49306 ,  Y10T29/49432

Abstract: Fluid system for controlling clutch engagement normally have modulating pressure relief valves to aid in smooth clutch engagement. It is also desired in such systems to ensure that the system pressure is reduced to a low level so that the load piston is fully reset prior to initial engagement of the newly filled clutch. In this arrangement, in order to ensure that the load piston is fully reset, a mechanism (120) is provided which establishes a ratio between the pressure of the fluid being directed to the clutch (12/14/16/18) and the pressure of the fluid acting on the load piston (100) of the modulating pressure relief valve (50) so that the pressurized fluid acting on the load piston during the filling of the clutch is vented to the reservoir (22) to reset the load piston even though the pressure of the fluid available to the clutch is still at a higher pressure level. The ratio valve mechanism (120) is located within the valve spool (80) of the modulating pressure relief valve (50) thus providing a simple and compact valve mechanism which reduces the total system size and further eliminates additional conduits and/or lines.

公开(公告)号：WO1987006348A1

公开(公告)日：1987-10-22

申请号：PCT/US1986001331

申请日：1986-06-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  LUEBBERING, Bernard, L. ,  RECTOR, Stephen, W.

IPC: G01P01/00

CPC classification number: G01P1/006 ,  G01P3/487

Abstract: An apparatus (10) transforms a sinusoidal input signal into a square wave (digital) signal. Unlike conventional zero crossing detectors, the output of the apparatus (10) remains unaffected by input signal drift. The sinusoidal input is compared with its own DC value instead of a fixed reference voltage. The DC component of the sinusoidal signal is extracted by a low pass filter (16) and delivered to one input of a comparator (18) to act as a variable zero reference. As the sinusoid drifts, its reference voltage drifts correspondingly. Hence, the comparator (18) outputs an undistorted square wave signal of a frequency correlative to the frequency of the sinusoidal signal. The apparatus (10) demonstrates particular usefulness in applications such as an engine speed sensor where a wide range of operating temperatures can be expected.

Abstract translation: 装置（10）将正弦输入信号变换成方波（数字）信号。 与常规过零检测器不同，设备（10）的输出保持不受输入信号漂移的影响。 正弦输入与其自身的DC值而不是固定的参考电压进行比较。 正弦信号的直流分量由低通滤波器（16）提取，并被传送到比较器（18）的一个输入端，用作可变的零参考。 随着正弦波漂移，其参考电压相应漂移。 因此，比较器（18）输出与正弦信号的频率相关的频率的无失真方波信号。 该装置（10）在诸如可以期望宽范围的工作温度的发动机速度传感器的应用中表现出特别的有用性。