公开(公告)号：WO1990008057A1

公开(公告)日：1990-07-26

申请号：PCT/US1989001015

申请日：1989-03-09

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  ADAMS, Carl, P. ,  OERTLEY, Thomas, E. ,  SPIVEY, William, J., Jr.

IPC: B62D55/30

CPC classification number: B62D55/30

Abstract: A track adjusting flow controlling mechanism (34) sets the optimum tension or ''controlled sag'' in the endless track (28) of a track type vehicle (10). A piston (70) and associated valve assembly (86) control flow of pressurized fluid to a track adjusting cylinder (48). Movement of the piston (70) tensions the track (28) with substantially no sag (''S'') and subsequent retraction of the piston (70) provides correct track tension with an optimum track sag (''S''). Supply of pressurized fluid to the piston (70) and valve assembly (86) is controlled by the vehicle operator from the operator's station (16). Conventional track adjusting operations require considerable time and effort and are often an undesirable task. In view of this, the adjusting task is often neglected with the resulting rapid wear of the track and related components. The subject track adjusting mechanism (32) provides a quick and simple operation to provide proper track adjustment.

公开(公告)号：WO1990005253A1

公开(公告)日：1990-05-17

申请号：PCT/US1988004526

申请日：1988-12-19

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  AVERY, Bennett, W. ,  ENGEL, William, K.

IPC: F16H35/00

CPC classification number: B60K17/046 ,  F16H1/2836 ,  Y10T74/19545

Abstract: A balanced free-planet drive mechanism (10) includes a reaction ring gear (72), an output ring gear (80), an input sun gear (84) arranged along a central axis (42), and a plurality of floating planet elements (92) individually having a first planet gear (94) engaged with the sun gear (84), a second planet gear (98) engaged with the output ring gear (80), and a third planet gear (96) engaged with the reaction ring gear (72). A required first rolling ring gear (134) resists radially inward movement of the planet elements (92) adjacent the thrid planet gear (96), and an optional second rolling ring gear (124) resists radially inward movement of the planet elements (92) adjacent the first planet gears (94) to maintain the planetary elements (92) essentially parallel to the central axis (42). A plurality of ring segments (114) are connected to the output ring gear (80) and engage a groove (104) in each of the planet elements (92) to maintain the planet elements (92) in a preselected axial position and to transmit relatively low thrust forces. The drive mechanism (10) is easy to assemble in a ground-engaging wheel (12) of a truck (14) or the like, with the output ring gear (80) being connected to rotate with the wheel (12). The incorporation of the drive mechanism (10) in a wheel (12) eliminates the usual planet carrier and planetary bearings associated with a conventional multi-stage planetary final drive, and is lighter in weight and less costly while fitting compactly within the same general space envelope.

公开(公告)号：WO1990004715A1

公开(公告)日：1990-05-03

申请号：PCT/US1989000713

申请日：1989-02-23

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  GREMBOWICZ, Conrad, G. ,  HARRELL, Bradley, W.

IPC: F02M51/00

CPC classification number: H01H47/325 ,  F02D41/20 ,  F02D2041/201 ,  F02D2041/2017 ,  F02D2041/2058 ,  F02D2041/2093

Abstract: A driver circuit (26) for first and second coils (30a, 30c) includes first and second selector switches (36a, 36c) coupled in series between first terminals (32a, 32c) of the coils (36a, 36c) and a first common junction (38), first and second diodes (44-1, 44-2) coupled in series between second terminals (34a, 34c) of the first and second coils (30a, 30c), respectively, and a second common junction (44) and a source of first potential (46) coupled to the first common junction (38). A modulation switch (56) is coupled between the second common junction (44) and a source of second potential (58). The selector switches (36a, 36c) and modulation switches (56) are operated to cause currents of controlled magnitude to flow through the coils (36a, 36c). The circuit has improved fault immunity whereby at least one coil (36a) can be energized even when another coil (36c) has been subjected to a chassis ground fault.

公开(公告)号：WO1990003870A1

公开(公告)日：1990-04-19

申请号：PCT/US1989003787

申请日：1989-09-05

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  EFTEFIELD, Larry, G. ,  PHELPS, Elmer, B.

IPC: B25D17/24

CPC classification number: B25D17/24 ,  B25D11/06

Abstract: A dampener for cushioning engagement forces of an impacting mechanism. An impacting mechanism has relatively movable members that can be releasably coupled together. The coupling engagement produces forces which tend to deform the coupling members. An impacting mechanism (11), having an actuator (14) with a releasable coupling member (20) is coupled to a relatively movable impact plunger (16), contains a dampener (22) which compresses or deforms to cushion the coupling force. An impacting mechanism (11) having a dampener (22) for cushioning the forces during coupling engagement prevents the coupling members (20) from being deformed.

公开(公告)号：WO1990002230A1

公开(公告)日：1990-03-08

申请号：PCT/US1989003525

申请日：1989-08-18

Applicant: CATERPILLAR INC. ,  MORITA, Izuru ,  TOZAWA, Shoji ,  SAKATA, Yoshitaka ,  KATANO, Muneo ,  MAEDA, Ryuzo

Inventor： CATERPILLAR INC.

IPC: E02F03/34

CPC classification number: E02F3/433

Abstract: A work vehicle (2) having an implement position controller (50). Set elevations and orientations of the work implement (5) can be preselected and changed. The controller (50) automatically positions the implement (5) in the desired elevation and orientation. Means (51) for preventing the work implement (5) from falling into the ground are also provided.

Abstract translation: 具有工具位置控制器（50）的工作车辆（2）。 可以预先选择和更改设置工作台（5）的高程和方向。 控制器（50）将所述工具（5）自动定位在所需的高度和方位。 还提供了用于防止工作装置（5）落入地面的装置（51）。

公开(公告)号：WO1990001781A1

公开(公告)日：1990-02-22

申请号：PCT/US1988004525

申请日：1988-12-19

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  TSALS, Izrail

IPC: H01F27/30

CPC classification number: G01L3/102 ,  G01L3/103 ,  G01L3/105 ,  H01F27/2804

Abstract: An apparatus (10) is provided for use with non-contacting torque sensors. Many non-contacting torque sensors use bulky inductive coil structures to induce magnetic flux into the shaft whose torque is to be measured, and to sense a change in magnetic permeability of the shaft in response to torque applied thereto. These large, cumbersome structures are quite expensive to fabricate, and difficult to manufacture and install. As a solution, a flexible, ribbonlike inductive coil structure (28) is provided. The dual layer construction of this coil structure (28) enables it to provide adequate magnetic flux distribution, similar to that of much larger coil structures. Furthermore, the unique layout of the coils results in an efficient, accurate structure for inducing and sensing magnetic flux.

公开(公告)号：WO1989011050A1

公开(公告)日：1989-11-16

申请号：PCT/US1988002324

申请日：1988-07-11

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  HOPKINS, Delaney, C.

IPC: F16H39/46

CPC classification number: F16H61/4061 ,  F16H61/0286 ,  F16H61/433 ,  F16H61/46

Abstract: Reversible hydraulic motors driven by fluid from variable displacement pumps are useful in driving various mechanisms of earth-moving machines. It is desirable to control both the speed and direction of the motor with a single lever. The subject hydraulic control system (10) includes a selector valve (26) which has a fluid control section (54) for directing pilot fluid to a reversing valve (18) to reverse the direction of the motor. A signal control valve (71) is mechanically actuated by movement of the selector valve to the operating position so that a regulated pressure control signal is directed to a displacement control (16) of variable displacement pump (12) to regulate the volumetric output of the pump and thus the operating speed of the motor.

公开(公告)号：WO1989006224A1

公开(公告)日：1989-07-13

申请号：PCT/US1988000367

申请日：1988-02-08

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  FEE, David, M. ,  RIEDIGER, Craig, W.

IPC: C05G13/00

CPC classification number: F16H59/02 ,  B60T7/08 ,  B60T15/04 ,  B60W10/10 ,  B60W10/18 ,  B62D11/04 ,  Y10T74/20049 ,  Y10T74/20207 ,  Y10T74/20256 ,  Y10T74/20274

Abstract: A control mechanism (10) for operating a vehicle (14) has a housing assembly (56) mounted for swinging movement about an upstanding axis (30), and a brake actuating member (160) is mounted on the housing assembly for swinging movement about a second axis (166). A push-pull control rod assembly (42) is connected to the brake actuating member and depends within the housing assembly to move a brake control element (41) between brake-off and brake-on positions. A transmission actuating member (108) is mounted on the housing assembly and a coupling apparatus (123, 170, 174) is provided for urging the transmission actuating member to a neutral position when the brake actuating member (160) is moved to the brake-on position. This prevents inadvertent movement of the vehicle when the brake acutating member is subsequently placed in the brake-off position.

公开(公告)号：WO1989005921A1

公开(公告)日：1989-06-29

申请号：PCT/US1988000369

申请日：1988-02-08

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  LAMMERS, Bryan, G. ,  SIECK, Charles, F.

IPC: F16C11/08

CPC classification number: E02F9/006 ,  B62D55/15 ,  F16C11/045 ,  F16C33/22 ,  F16C2350/26 ,  F16F1/3935 ,  Y10T403/32959 ,  Y10T403/457

Abstract: A pivot assembly (10) provides limited pivotal motion between a relatively stationary member (12) and a relatively moveable member (14) which is supported on the stationary member (12). The stationary member (12) is secured to a vehicle frame (37) and the moveable member (14) forms a portion of an endless track supporting frame (14). The pivot assembly (10) includes a plurality of elastomeric bearings (18, 20) between the stationary (12) and moveable (14) members and a loading member (16) to compress and preload the bearings (18, 20). Conventional pivot assemblies utilize metal sleeve, roller or ball bearings to provide relative pivotal motion between stationary and cooperative moveable members. Such metal bearings require constant lubrication, and seals to contain the lubrication, and produce objectionable noise and vibration. The subject pivot assembly (10) requires no lubrication or seals and generates low levels of noise and vibration by isolating the stationary (12) and moveable (14) members with the elastomeric bearings (18, 20). The dual tapered, elastomeric preloaded bearings (18, 20) restrain and capture the relatively moveable member (14) axially and radially without a thrust bearing.

Abstract translation: 枢轴组件在相对静止的构件和支撑在固定构件上的相对可移动构件之间提供有限的枢转运动。 固定构件被固定到车架上，并且可移动构件形成环形轨道支撑框架的一部分。 枢轴组件包括在固定和可移动构件之间的多个弹性体轴承和用于压缩和预加载轴承的装载构件。 传统的枢轴组件利用金属套筒，滚子或滚珠轴承来提供固定和可移动构件之间的相对枢转运动。 这种金属轴承需要恒定的润滑，并且密封件容纳润滑，并产生令人不快的噪音和振动。 主体枢轴组件不需要润滑或密封，并通过用弹性轴承隔离固定和可移动部件而产生低水平的噪音和振动。 双锥形弹性体预加载轴承在轴向和径向地限制和捕获相对可移动的构件而没有推力轴承。

公开(公告)号：WO1989005920A1

公开(公告)日：1989-06-29

申请号：PCT/US1988000653

申请日：1988-03-04

Applicant: CATERPILLAR INC.

Inventor： CATERPILLAR INC. ,  BEALS, Duane, E.

IPC: F16B35/04

CPC classification number: F16B39/10 ,  F16D1/06

Abstract: A locking arrangement is provided for preventing relative rotation between a nut (14) and a rotatable member (12). The locking arrangement includes a lock plate (44) having a tang (56) which engages one of a plurality of slots (40) on the outer periphery (38) of the nut (14). The lock plate (44) includes at least one contact surface (58) for contacting the nut (14) to prevent rotation. A bolt (62) positioned in an aperture (60) of the lock plate (44) is threaded into a threaded hole (34) of the rotatable member (12) for releasably fastening the lock plate (44) to the rotatable member (12).

Abstract translation: 提供了用于防止螺母（14）和可旋转构件（12）之间的相对旋转的锁定装置。 锁定装置包括锁定板（44），该锁板具有接合螺母（14）的外周（38）上的多个狭槽（40）中的一个的柄脚（56）。 锁定板（44）包括用于接触螺母（14）以防止旋转的至少一个接触表面（58）。 定位在锁定板（44）的孔（60）中的螺栓（62）拧入可旋转构件（12）的螺纹孔（34）中，用于将锁定板（44）可释放地紧固到可旋转构件（12） ）。