CN221114140U - Steering gear control hydraulic machinery driving crawler traveling system - Google Patents
Steering gear control hydraulic machinery driving crawler traveling system Download PDFInfo
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- CN221114140U CN221114140U CN202322792548.1U CN202322792548U CN221114140U CN 221114140 U CN221114140 U CN 221114140U CN 202322792548 U CN202322792548 U CN 202322792548U CN 221114140 U CN221114140 U CN 221114140U
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 54
- 239000003638 chemical reducing agent Substances 0.000 claims description 34
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- 230000007704 transition Effects 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 10
- 230000008859 change Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a steering gear control hydraulic machinery driving crawler traveling system, which comprises a traveling control device, a combined hydraulic device and a traveling device, wherein the combined hydraulic device adopts the cooperation of a combined double hydraulic pump and a hydraulic oil motor; the traveling control device comprises a direction control device, a traveling control device and a control base, wherein the direction control device comprises a steering wheel assembly, a left steering assembly and a right steering assembly, a rear pump swing arm is arranged in the left steering assembly, and a front pump swing arm is arranged in the right steering assembly; the travelling control device is adopted to drive the whole control base to move, and the front pump swing arm and the rear pump swing arm are synchronously driven to rotate in the same direction, so that the driving forces of the first hydraulic oil motor and the second hydraulic oil motor are controlled, and the front and rear crawler travelling speed and the speed are realized; the steering wheel is rotated to drive the front pump swing arm and the rear pump swing arm to synchronously and reversely rotate, so that different flow outputs of the front pump and the rear pump are caused, the first hydraulic oil motor and the second hydraulic oil motor generate differential speed, and the steering function is realized.
Description
Technical Field
The utility model belongs to the technical field of agricultural machines, and particularly relates to a steering gear control hydraulic machinery driving crawler traveling system.
Background
The agricultural machinery for crawler travel comprises a crawler-type corn harvester, a crawler-type medicinal material harvester, a crawler-type tractor, a crawler-type rotary cultivator, a crawler-type harvester and the like. However, the existing drive assembly of the agricultural machine generally adopts a mechanical four-wheel drive axle assembly, and the drive assembly has the defects of high failure rate, complex operation, large volume, heavy mass, high energy consumption and the like, and the mechanical four-wheel drive axle assembly generally cannot realize good steering operation.
Disclosure of utility model
In order to make up the defects of the prior art, the application provides a steering gear control hydraulic machinery driving crawler traveling system, which comprises a traveling control device, a combined hydraulic device and a traveling device,
The combined hydraulic device adopts the cooperation of a combined double hydraulic pump and a hydraulic oil motor, the combined double hydraulic pump comprises a front pump and a rear pump, and the hydraulic oil motor comprises a first hydraulic oil motor matched with the front pump and a second hydraulic oil motor matched with the rear pump;
The traveling control device comprises a direction control device, a traveling control device and a control base, wherein the direction control device comprises a steering wheel assembly, a left steering assembly and a right steering assembly, a rear pump swing arm matched with a rear pump is arranged in the left steering assembly, and a front pump swing arm matched with a front pump is arranged in the right steering assembly; the travel control device comprises an operating handle assembly and an operating connecting rod combination; the control base comprises a control base, a speed reducer and a sliding rail set, wherein the speed reducer and the sliding rail set are positioned on the control base, and the control base and the speed reducer can move back and forth along the sliding rail set; the advancing control device is used for driving the whole control base to move and synchronously driving the front pump swing arm and the rear pump swing arm to rotate in the same direction; the direction control device is used for driving the front pump swing arm and the rear pump swing arm to synchronously and reversely rotate; the flow adjustment of the front pump or the rear pump is completed through the rotation of the front pump swing arm and the rear pump swing arm, and the control of the driving force of the first hydraulic oil motor and the driving force of the second hydraulic oil motor is realized.
Further, the steering wheel assembly comprises a steering wheel and a spline connected with the steering wheel, the other end of the spline is connected with an input shaft of the speed reducer, a pendulum shaft perpendicular to the output shaft is arranged on an output shaft of the speed reducer, the left steering assembly and the right steering assembly are connected to the same side of the pendulum shaft in a matched mode, and the rotation of the pendulum shaft drives the left steering assembly and the right steering assembly to synchronously move.
Further, the left steering assembly comprises a left pull rod connected with the swing shaft, the bottom of the left pull rod is connected with a left swing arm, and the other end of the left swing arm is connected with the rear pump swing arm in a matched manner through a rear pump pull rod; the right steering assembly comprises a right pull rod connected with the swing shaft, the bottom of the right pull rod is connected with a right swing arm, and the other end of the right swing arm is connected with the front pump swing arm in a matched manner through a front pump pull rod.
Further, the left swing arm and the right swing arm are corner connecting pieces which are identical in structure and are reversely arranged, the corners of the two corner connecting pieces are connected with the control base through a first fixed shaft, the corner connecting pieces are rotatably connected with the first fixed shaft, the speed reducer drives the swing shaft to rotate, then the left pull rod and the right pull rod are driven to synchronously move up and down, and the left swing arm and the right swing arm drive the rear pump pull rod and the front pump pull rod to synchronously move reversely.
Further, the operating handle assembly comprises a main operating rod and a main speed changing pulling plate connected with the main operating rod, and the forward pushing or the backward pulling of the main operating rod can drive the main speed changing pulling plate to rotate.
Further, the operation connecting rod combination comprises a main speed change pull rod hinged with the main speed change pull plate, the other end of the main speed change pull rod is connected with a floating pull rod through a transition swing arm, the other end of the floating pull rod is connected with a control base through a second fixed shaft, the main operation rod is pushed forward or backward to drive the rotation of the main speed change pull plate and the transition swing arm, then the floating pull rod is pushed to move forward and backward, the control base is driven by the floating pull rod to move forward and backward along the sliding rail set, and then the left swing arm and the right swing arm drive the rear pump pull rod to move in the same direction in synchronization.
Further, a reset mechanism is arranged on the input shaft of the speed reducer and comprises an eccentric cam, a reset plate and a tension spring, wherein the eccentric cam is matched with the input shaft of the speed reducer, one end of the reset plate is connected with the eccentric cam, the other end of the reset plate is connected with the tension spring, the other end of the tension spring is fixed on the upper end face of the speed reducer, and the reset plate is driven to reset through the tension spring when no external force acts.
Further, the walking device comprises two crawler wheel groups which are oppositely arranged and a driving assembly used for driving the crawler wheel groups, and the driving assembly comprises a first driving assembly and a second driving assembly; the crawler wheel set comprises a left crawler wheel set matched with the first driving component and a right crawler wheel set matched with the second driving component.
Further, the first driving assembly comprises a first gearbox body, a first driving shaft and a first driving wheel, the first driving wheel is arranged on the left crawler wheel set and is matched with the left crawler wheel set to drive the left crawler wheel set, the first gearbox body finishes power input through the first hydraulic oil motor, the first driving shaft is driven to finish rotation, and then the first driving wheel is driven to rotate.
Further, the second driving assembly comprises a second gearbox body, a second driving shaft and a second driving wheel, the second driving wheel is arranged on the right crawler wheel set and is matched with the right crawler wheel set to drive the right crawler wheel set, the second gearbox body finishes power input through the second hydraulic oil motor to drive the second driving shaft to finish rotation, and then the second driving wheel is driven to rotate.
Compared with the prior art, the utility model has the following advantages:
(1) The travelling control device is adopted to drive the whole control base to move, the front pump swing arm and the rear pump swing arm are synchronously driven to move in the same direction, the front pump swing arm and the rear pump swing arm are driven to synchronously and reversely move through the direction control device, the flow adjustment of the front pump or the rear pump is completed through the movement of the front pump swing arm and the rear pump swing arm, the control of the driving force of the first hydraulic oil motor and the second hydraulic oil motor is realized, and the front and rear speed and the speed of crawler travelling are realized;
(2) The steering wheel rotates to drive the two swing arms on the combined double hydraulic pump to rotate in different directions, so that different flow outputs of the front pump and the rear pump are realized, and the first hydraulic oil motor and the second hydraulic oil motor generate differential speed; the steering wheel is rotated clockwise or anticlockwise and rotated by different angles, so that the speed and the direction of the speed of the front pump and the speed of the rear pump are different, and the steering function is realized;
(3) The left-right double-drive independent control structure is realized through the cooperation of the first driving component and the first hydraulic oil motor and the cooperation of the second driving component and the second hydraulic oil motor, the steering operation of the machine can be realized through left-right differential, and the walking control convenience of the machine is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a second schematic diagram of the structure of the present utility model;
FIG. 3 is a structural separation diagram of the present utility model;
FIG. 4 is a schematic illustration of one of the configurations of the directional control assembly and hydraulic assembly of the present utility model;
FIG. 5 is a second schematic illustration of the directional control assembly and hydraulic assembly of the present utility model.
In the figure: the travel control device 100, the direction control device 110, the steering wheel assembly 111, the steering wheel 1111, the spline 1112, the left steering assembly 112, the left tie rod 1121, the left swing arm 1122, the rear pump tie rod 1123, the right steering assembly 113, the right tie rod 1131, the right swing arm 1132, the front pump tie rod 1133, the front pump swing arm 114, the rear pump swing arm 115,1, the fixed shaft 116, the fixed shaft 117, the travel control device 120, the operating handle assembly 121, the main operating rod 1211, the main gear shifting plate 1212, the operating link assembly 122, the main gear shifting tie rod 1221, the transitional swing arm 1222, the floating tie rod 1223, the control base 130, the control base 131, the speed reducer 132, the output rotating shaft 1321, the swing shaft 1322, the slide rail set 133, the return mechanism 134, the eccentric cam 1341, the return plate 1342, the tension spring 1343, the combined hydraulic device 200, the transfer case 201, the front pump 202, the rear pump 203, the first hydraulic oil motor 204, the second hydraulic oil motor 205, the engine 206, the travel device 300, the crawler wheel set 310, the left wheel set 311, the right crawler wheel set 312, the drive assembly 320, the drive assembly 321, the first crawler body 3221, the drive wheel assembly 3223, the drive shaft 3221, the drive wheel assembly 3212, the drive shaft 3222, the drive shaft 321, the drive shaft 3212, the drive shaft assembly.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-5, a steering hydraulic machine driven crawler traveling system comprises a traveling control device 100, a combined hydraulic device 200 and a traveling device 300, wherein the combined hydraulic device 200 adopts the cooperation of a combined double hydraulic pump and a hydraulic oil motor, the combined double hydraulic pump comprises a transfer case 201, a front pump 202 and a rear pump 203, and the transfer case 201 is used for being connected with an engine 206; the hydraulic oil motors include a first hydraulic oil motor 204 that cooperates with the front pump 202 and a second hydraulic oil motor 205 that cooperates with the rear pump 203; the walking control device 100 comprises a direction control device 110, a travelling control device 120 and a control base 130, wherein the direction control device 110 comprises a steering wheel assembly 111, a left steering assembly 112 and a right steering assembly 113, a rear pump swing arm 115 matched with a rear pump 203 is arranged in the left steering assembly 112, a front pump swing arm 114 matched with a front pump 202 is arranged in the right steering assembly 113, the travelling control device 120 comprises an operation handle assembly 121 and an operation connecting rod assembly 122, the control base 130 comprises a control base 131, a speed reducer 132 and a sliding rail set 133 which are positioned on the control base 131, and the control base 131 and the speed reducer 132 can move forwards and backwards along the sliding rail set 133; the travel control device 120 is used for driving the whole control base 131 to move and synchronously driving the front pump swing arm 114 and the rear pump swing arm 115 to rotate in the same direction; the direction control device 110 is used to drive the front pump swing arm 114 and the rear pump swing arm 115 to rotate synchronously and reversely. The running gear 300 includes two relative track wheelsets 310 that set up and is used for the drive track wheelset 310's drive assembly 320, drive assembly 320 is including being used for driving track wheelset 310 and accomplish drive first drive assembly 321 and second drive assembly 322, track wheelset 310 include with first drive assembly 321 complex left side track wheelset 311 and with second drive assembly 322 complex right side track wheelset 312, through the optimal design adoption about two drive independent control structures, can realize the steering operation of little region through controlling the differential, improved harvester walking and controlled convenience.
Specifically, steering wheel assembly 111 includes a steering wheel 1111 and a spline 1112 connected to steering wheel 1111, the other end of spline 1112 is connected to the input shaft of reducer 132, and both ends of spline 1112 are provided with universal joints, and the linkage between steering wheel 1111 and reducer 132 is achieved by spline 1112. The output rotating shaft 1321 of the reducer 132 is provided with a swing shaft 1322 perpendicular to the output rotating shaft 1321, and the left steering assembly 112 and the right steering assembly 113 are connected with the same side of the swing shaft 1322, that is, the rotation of the swing shaft 1322 drives the left steering assembly 112 and the right steering assembly 113 to synchronously move. The left steering assembly 112 comprises a left pull rod 1121 connected with a swing shaft 1322, the bottom of the left pull rod 1121 is connected with a left swing arm 1122, and the other end of the left swing arm 1122 is in matched connection with the rear pump swing arm 115 through a rear pump pull rod 1123; the right steering assembly 113 comprises a right pull rod 1131 connected with a swing shaft 1322, the bottom of the right pull rod 1131 is connected with a right swing arm 1132, and the other end of the right swing arm 1132 is in matched connection with the front pump swing arm 114 through a front pump pull rod 1133. The left swing arm 1122 and the right swing arm 1132 are corner connectors which are identical in structure and are arranged in opposite directions, the corners of the two corner connectors are connected with the control base 131 through the first fixed shaft 116, the corner connectors are rotatably connected with the first fixed shaft 116, the speed reducer 132 drives the swing shaft 1322 to rotate, then the left pull rod 1121 and the right pull rod 1131 are driven to synchronously move up and down, and the left swing arm 1122 and the right swing arm 1132 drive the rear pump pull rod 1123 and the front pump pull rod 1133 to synchronously move in opposite directions.
The operating handle assembly 121 includes a main operating lever 1211 and a main shift plate 1212 coupled to the main operating lever 1211; the operating linkage assembly 122 includes a primary shift lever 1221 hinged to the primary shift plate 1212, the other end of the primary shift lever 1221 being coupled to a floating lever 1223 through a transition swing arm 1222, the other end of the floating lever 1223 being coupled to the control base 131 through a stationary shaft two 117. The main shift lever 1211 is pushed forward or backward to rotate the main shift lever 1212 and the transition lever 1222, which in turn moves the floating lever 1223 forward and backward, the floating lever 1223 drives the entire control base 131 and the decelerator 132 to move forward and backward along the slide rail set 133, and the left swing arm 1122 and the right swing arm 1132 drive the rear pump lever 1123 and the front pump lever 1133 to move in the same direction in synchronization. When the pump is opened to the maximum angle, the main operating rod 1211 is pushed again, and the floating pull rod 1223 changes from rigidity to flexibility to realize automatic elongation (or automatic shortening) after exceeding a certain pulling force, so that the pump angle is unchanged, and the function of protecting the pump is achieved.
In addition, a reset mechanism 134 is further arranged on the input shaft of the speed reducer 132, the reset mechanism 134 comprises an eccentric cam 1341, a reset plate 1342 and a tension spring 1343 which are matched with the input shaft of the speed reducer 132, the reset plate 1342 is rotatably arranged on the upper end surface of the speed reducer 132, one end of the reset plate 1342 is connected with the eccentric cam 1341, the other end of the reset plate is connected with the tension spring 1343, and the other end of the tension spring 1342 is also fixed on the upper end surface of the speed reducer 132; when the steering wheel 1111 rotates the input shaft of the reducer 132, the eccentric cam 1341 drives the reset plate 1342 to rotate, a certain eccentric force is generated at this time, if the steering wheel 1111 is released by hands, the tension spring 1343 drives the reset plate 1342 to reset, so that the input shaft of the reducer 132 rotates reversely, at this time, the eccentric cam 1341 of the reducer 132 resets, and the steering wheel 1111 also resets.
The front pump 202 and the first hydraulic oil motor 304 in the combined hydraulic device 200 are linked through a first oil inlet pipe and a first oil outlet pipe (not shown in the figure), and the rear pump 203 and the second hydraulic oil motor 205 are linked through a second oil inlet pipe and a second oil outlet pipe (not shown in the figure); the front pump 202 and the rear pump 203 are both communicated with a hydraulic oil tank, so that the input or output of hydraulic oil is realized, the flow adjustment of the front pump 202 or the rear pump 203 is finished through the left steering assembly 112 and the right steering assembly 113, and the control of the driving force of the first hydraulic oil motor 204 and the second hydraulic oil motor 205 and the reversing control of the driving force are realized; the first oil inlet pipe, the first oil outlet pipe, the second oil inlet pipe and the second oil outlet pipe are all flexible hydraulic oil pipes, so that the front pump 202 and the rear pump 203 can be reasonably placed according to the overall space arrangement requirement of the machine, and the first hydraulic oil motor 204 and the second hydraulic oil motor 205 are preferably arranged on the inner side of the crawler wheel set 310.
The first driving component 321 of the driving assembly 320 comprises a first gearbox body 3211, a first driving shaft 3212 and a first driving wheel 3213, the first gearbox body 3211 finishes power input through the first hydraulic oil motor 204, the first gearbox body 3211 drives the first driving shaft 3212 to finish rotation, and the first driving shaft 3212 drives the first driving wheel 3213 to rotate; the second driving assembly 322 includes a second gearbox body 3221, a second driving shaft 3222 and a second driving wheel 3223, the second gearbox body 3221 completes power input through the second hydraulic oil motor 205, the second gearbox body 3221 drives the second driving shaft 3222 to complete rotation, and the second driving shaft 3222 drives the second driving wheel 3223 to rotate; the first gear box body 3211 and the second gear box body 3221 are both in gear box structures and are respectively arranged on the inner sides of the left-side track wheel set 311 or the right-side track wheel set 312, wherein the first driving shaft 3212 and the second driving shaft 3222 generally comprise a rotating shaft matched with transmission gears in the first gear box body 3211 or the second gear box body 3221 and a shaft sleeve arranged on the outer sides, the other ends of the rotating shafts are matched with the first driving wheel 3213 or the second driving wheel 3223 and are used for driving the first driving wheel 3213 or the second driving wheel 3223 to rotate, and the first driving wheel 3213 and the second driving wheel 3223 are arranged on the track wheel set 310 and are matched with the track wheel set 310 to drive tracks. A reinforcement shaft 323 is provided between the first and second gear boxes 3211, 3221 to increase overall stability.
In a specific handling configuration: the left steering assembly 112 is linked with the rear pump 203 through the rear pump swing arm 115, the rear pump 203 completes the oil quantity adjustment of hydraulic oil input or output through the front-back movement of the rear pump pull rod 1123, and the rear pump pull rod 1123 is used for controlling and adjusting the plunger stroke in the rear pump 203 so as to realize the flow adjustment of the rear pump 203; the right steering assembly 113 is linked with the front pump 202 through the front pump swing arm 114, the front pump 202 completes the oil quantity adjustment of hydraulic oil input or output through the front and back movement of the front pump pull rod 1133, and the front pump pull rod 1133 is used for controlling and adjusting the plunger stroke in the front pump 202 so as to realize the flow adjustment of the front pump 202. The front pump 202 is adjusted by the right steering assembly 113, and the control of the first hydraulic oil motor 204 is completed, and the first hydraulic oil motor 204 is used for driving the first driving assembly 321 to complete the power output; the rear pump 203 is regulated by the left steering assembly 112 and controls the second hydraulic oil motor 205, and the second hydraulic oil motor 205 is used to drive the second driving assembly 322 to complete the power output.
Machine forward or reverse: the main operating rod 1211 pushes forward or retreats, at this time, the main gear shift pull plate 1212 rotates, the main gear shift pull rod 1221 drives the transition swing arm 1222 to rotate, the floating pull rod 1223 drives the whole control base 131 and the speed reducer 132 to move forward and backward along the sliding rail set 133, and then the left swing arm 1122 and the right swing arm 1132 drive the rear pump pull rod 1123 and the front pump pull rod 1133 to move synchronously and in the same direction, so as to drive the front pump swing arm 114 and the rear pump swing arm 115 on the combined dual hydraulic pump to rotate, thereby realizing the flow output of the front pump 202 and the rear pump 203, and the flow output of the front pump 202 and the rear pump 203 is transmitted to the corresponding hydraulic oil motor, thereby realizing the forward or retreating.
Control of machine speed: by controlling the different positions of the forward pushing or backward pushing of the main operating lever 1211, the magnitude of the angles of the front pump swing arm 114 and the rear pump swing arm 115 determines the magnitude of the output flow of the front pump 202 and the rear pump 203, and thus, the rotational speed of the hydraulic oil motor is controlled, and the forward moving or backward moving speed is also determined.
Control of machine steering: the steering wheel 1111 is rotated, the steering wheel is transmitted to the speed reducer 132 through the spline 1112, the steering wheel is output to the swing shaft 1322 after being decelerated, the left swing arm 1122 and the right swing arm 1132 are rotated in different directions through the left pull rod 1121 and the right pull rod 1131, the two swing arms on the combined double hydraulic pump are driven to rotate in different directions, different flow output of the front pump 202 and the rear pump 203 is realized, and the first hydraulic oil motor 204 and the second hydraulic oil motor 205 generate differential speed; turning the steering wheel 1111 clockwise or counterclockwise and rotating at different angles, the differential speed or forward and reverse of the front pump 202 and the rear pump 203 is realized, and the steering function is realized. The steering wheel 1111 is rotated when advancing or retreating, by the above mechanism, different opening angles of the front pump swing arm 114 and the rear pump swing arm 115 can be realized, different rotation speeds of the motors are controlled, namely, differential speed of the crawler belt is realized, and steering when advancing or retreating is realized by the machine.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. A steering gear control hydraulic machinery driving crawler traveling system, which comprises a traveling control device (100), a combined hydraulic device (200) and a traveling device (300), and is characterized in that,
The combined hydraulic device (200) adopts the cooperation of a combined double hydraulic pump and a hydraulic oil motor, the combined double hydraulic pump comprises a front pump (202) and a rear pump (203), and the hydraulic oil motor comprises a first hydraulic oil motor (204) matched with the front pump (202) and a second hydraulic oil motor (205) matched with the rear pump (203);
The walking control device (100) comprises a direction control device (110), a travelling control device (120) and a control base (130), wherein the direction control device (110) comprises a steering wheel assembly (111), a left steering assembly (112) and a right steering assembly (113), a rear pump swing arm (115) matched with a rear pump (203) is arranged in the left steering assembly (112), and a front pump swing arm (114) matched with a front pump (202) is arranged in the right steering assembly (113); the travel control device (120) comprises an operating handle assembly (121) and an operating link assembly (122); the control base (130) comprises a control base (131), a speed reducer (132) and a sliding rail set (133), wherein the speed reducer (132) is arranged on the control base (131), and the control base (131) and the speed reducer (132) can move back and forth along the sliding rail set (133); the advancing control device (120) is used for driving the whole control base (131) to move and synchronously driving the front pump swing arm (114) and the rear pump swing arm (115) to rotate in the same direction; the direction control device (110) is used for driving the front pump swing arm (114) and the rear pump swing arm (115) to synchronously and reversely rotate; the flow adjustment of the front pump (202) or the rear pump (203) is completed through the rotation of the front pump swing arm (114) and the rear pump swing arm (115), and the control of the driving force of the first hydraulic oil motor (204) and the driving force of the second hydraulic oil motor (205) is realized.
2. The steering wheel assembly (111) comprises a steering wheel (1111) and a spline (1112) connected with the steering wheel (1111), the other end of the spline (1112) is connected with an input shaft of the speed reducer (132), a swing shaft (1322) perpendicular to the output shaft (1321) is arranged on an output shaft (1321) of the speed reducer (132), the left steering assembly (112) and the right steering assembly (113) are connected to the same side of the swing shaft (1322) in a matching manner, and rotation of the swing shaft (1322) drives synchronous movement of the left steering assembly (112) and the right steering assembly (113).
3. The steering wheel control hydromechanical drive crawler travel system according to claim 2, wherein the left steering assembly (112) comprises a left tie rod (1121) connected with the swing shaft (1322), the bottom of the left tie rod (1121) is connected with a left swing arm (1122), and the other end of the left swing arm (1122) is cooperatively connected with the rear pump swing arm (115) through a rear pump tie rod (1123); the right steering assembly (113) comprises a right pull rod (1131) connected with the swing shaft (1322), the bottom of the right pull rod (1131) is connected with a right swing arm (1132), and the other end of the right swing arm (1132) is connected with the front pump swing arm (114) in a matched mode through a front pump pull rod (1133).
4. A steering wheel control hydraulic machinery driven crawler traveling system according to claim 3, wherein the left swing arm (1122) and the right swing arm (1132) are corner connectors which are identical in structure and are arranged in opposite directions, the corners of the two corner connectors are connected with the control base (131) through a first fixed shaft (116), the corner connectors are rotatably connected with the first fixed shaft (116), the speed reducer (132) drives the swing shaft (1322) to rotate, and then the left pull rod (1121) and the right pull rod (1131) are driven to synchronously move up and down, and the rear pump pull rod (1123) and the front pump pull rod (1133) are driven to synchronously move in opposite directions through the left swing arm (1122) and the right swing arm (1132).
5. A steering wheel controlled hydromechanically-driven track travel system according to claim 3, wherein the operating handle assembly (121) comprises a main operating lever (1211) and a main shift plate (1212) connected to the main operating lever (1211), wherein forward pushing or reverse pushing of the main operating lever (1211) causes rotation of the main shift plate (1212).
6. The steering wheel control hydromechanical drive crawler travel system according to claim 5, wherein the operation link assembly (122) comprises a main shift lever (1221) hinged to a main shift lever (1212), the other end of the main shift lever (1221) is connected to a floating lever (1223) through a transition swing arm (1222), the other end of the floating lever (1223) is connected to a control base (131) through a fixed shaft (117), and the main operation lever (1211) is pushed forward or backward to drive the rotation of the main shift lever (1212) and the transition swing arm (1222), and then the floating lever (1223) is pushed forward or backward to drive the control base (131) and the decelerator (132) to move forward or backward along the slide rail assembly (133), and then the left swing arm (1122) and the right swing arm (1132) drive the rear pump lever (1123) and the front pump lever (1133) to move in the same direction in synchronization.
7. The steering wheel control hydraulic machinery driving crawler traveling system according to claim 2, wherein a reset mechanism (134) is arranged on an input shaft of the speed reducer (132), the reset mechanism (134) comprises an eccentric cam (1341) matched with the input shaft of the speed reducer (132), a reset plate (1342) and a tension spring (1343), one end of the reset plate (1342) is connected with the eccentric cam (1341), the other end of the reset plate is connected with the tension spring (1343), and the other end of the tension spring (1343) is fixed on the upper end face of the speed reducer (132) and drives the reset plate (1342) to reset through the tension spring (1343) when no external force acts.
8. A steering wheel controlled hydromechanical drive track running system according to any of claims 1-7, wherein the running gear (300) comprises two oppositely arranged track wheel sets (310) and a drive assembly (320) for driving the track wheel sets (310), the drive assembly (320) comprising a first drive assembly (321) and a second drive assembly (322); the track wheel set (310) comprises a left track wheel set (311) which is matched with the first driving assembly (321) and a right track wheel set (312) which is matched with the second driving assembly (322).
9. The steering wheel control hydraulic machinery driven crawler traveling system according to claim 8, wherein the first driving assembly (321) comprises a first gearbox body (3211), a first driving shaft (3212) and a first driving wheel (3213), the first driving wheel (3213) is arranged on the left crawler wheel set (311) to cooperatively drive the left crawler wheel set (311), the first gearbox body (3211) completes power input through the first hydraulic oil motor (204) to drive the first driving shaft (3212) to complete rotation, and then drives the first driving wheel (3213) to rotate.
10. The steering wheel control hydraulic mechanical driving crawler traveling system according to claim 8, wherein the second driving assembly (322) includes a second gearbox body (3221), a second driving shaft (3222) and a second driving wheel (3223), the second driving wheel (3223) is disposed on the right crawler wheel set (312) and cooperates with the right crawler wheel set (312), the second gearbox body (3221) completes power input through the second hydraulic oil motor (205) to drive the second driving shaft (3222) to complete rotation, and then drives the second driving wheel (3223) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322792548.1U CN221114140U (en) | 2023-10-18 | 2023-10-18 | Steering gear control hydraulic machinery driving crawler traveling system |
Applications Claiming Priority (1)
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