CN116857263B - Final inspection test device for hydraulic lifting system of tractor - Google Patents
Final inspection test device for hydraulic lifting system of tractor Download PDFInfo
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- CN116857263B CN116857263B CN202310863888.0A CN202310863888A CN116857263B CN 116857263 B CN116857263 B CN 116857263B CN 202310863888 A CN202310863888 A CN 202310863888A CN 116857263 B CN116857263 B CN 116857263B
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- 238000007689 inspection Methods 0.000 title claims abstract description 12
- 230000000670 limiting effect Effects 0.000 claims abstract description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 230000009471 action Effects 0.000 claims abstract description 30
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 14
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/007—Simulation or modelling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the technical field of tractor quality detection, in particular to a final inspection test device of a tractor hydraulic lifting system, which comprises a mounting base, wherein the top of the mounting base is fixedly connected with a rectangular frame, a plurality of lifting blocks are arranged in the rectangular frame, two first limiting rods are fixedly connected in the rectangular frame, and the lifting blocks are in sliding connection with the first limiting rods; according to the invention, the lifting hook is regulated according to the parking position of the loading rod under the action of the movable regulating mechanism, so that the loading rod can accurately drive the lifting hook to move upwards, the influence of the parking deviation of the position of the tractor on a lifting test is reduced, when the loading rod drives the lifting hook to move upwards, the traction steel wire drives the lifting block with corresponding weight to move vertically upwards, the lifting weight in the test is always vertically upwards, the lifting force is always the same, and the accuracy of the test data of the hydraulic lifting system is improved.
Description
Technical Field
The invention relates to the technical field of tractor quality detection, in particular to a final inspection test device for a hydraulic lifting system of a tractor.
Background
After the production assembly of the tractor is finished, a final inspection test is required to be carried out on a hydraulic lifting system of the tractor, and heavy objects are pulled and lifted through the hydraulic lifting system, so that the functional, stability and other data indexes of the hydraulic lifting system are tested, and the product function is guaranteed to be complete.
The prior art discloses a part of patent documents related to the technical field of tractor complete machine quality detection, and the application number is CN201810143516.X, and discloses a final inspection test device of a tractor hydraulic lifting system, which is used in a complete machine detection link before the off-line delivery of a tractor production enterprise and consists of a standard loading rod, a hydraulic mounting mechanism, a video guiding system, a hydraulic pump station and a control system, wherein the standard loading rod is arranged on a tractor hydraulic lifting lower swing arm; the video guiding system guides a driver through a display screen hung in front of the tractor according to the relative positions of the mounting area in the middle of the standard loading rod and the mounting hook of the hydraulic mounting mechanism, and accurately controls the reversing hanging position; the mounting hook of the hydraulic mounting mechanism automatically adjusts the inclination and the height of the hydraulic mounting hook according to video analysis of the video guiding unit, so that the standard loading rod for tractor reversing is hung on the hydraulic loading mechanism.
In the prior art, a loading rod of a hydraulic lifting system is usually placed on a hook of a test weight, the hydraulic lifting system is tested by lifting the weight, in the test process, a tractor needs to be driven to a detection test position by a driver, even if the detection test position is observed through images, the loading rod of the hydraulic lifting system cannot be guaranteed to reach a determined position every time, when the parking position is inaccurate, the test efficiency can be influenced by readjusting the position of the tractor, and when the loading rod of the hydraulic lifting system and the hook of the load-bearing weight are not on the same vertical line, the lifting force of the loading rod of the hydraulic lifting system when lifting the weight can be changed, so that the accuracy of test data is influenced.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a final inspection test device for a hydraulic lifting system of a tractor.
In order to achieve the above purpose, the invention adopts the following technical scheme: the final inspection test device for the hydraulic lifting system of the tractor comprises a mounting base, wherein a rectangular frame is fixedly connected to the top of the mounting base, a plurality of lifting blocks are placed in the rectangular frame, two first limiting rods are fixedly connected to the interior of the rectangular frame, and the lifting blocks are all in sliding connection with the first limiting rods;
the front of the rectangular frame is fixedly connected with two second limiting rods, the two second limiting rods are connected with a movable plate in a sliding insertion mode, the movable plate is connected with a lifting adjusting mechanism, and the movable plate drives lifting blocks with different numbers to move upwards under the action of the lifting adjusting mechanism;
the top of fly leaf fixedly connected with traction steel wire, be connected with guiding mechanism on the traction steel wire, the top fixedly connected with support frame of mounting base, the hole of placing has been seted up at the top of support frame, the top of support frame is provided with the solid fixed ring, gu be connected with vertical lifting mechanism between fixed ring and the support frame, traction steel wire's one end extends to from the bottom of placing the hole the top of support frame back fixed connection is in gu the inside of fixed ring, the top of fixed ring is provided with the movable rod, the one end fixedly connected with of movable rod lifts the hook, be connected with movable adjustment mechanism between movable rod and the fixed ring, through movable adjustment mechanism's effect, adjust lifting hook's position and angle; during operation, prior art is usually through placing hydraulic lifting system's loading pole on the couple of test heavy object, test hydraulic lifting system through promoting the heavy object, in the test process, need open the tractor to the test position through the navigating mate, even through observing through the image, can not guarantee that hydraulic lifting system's loading pole at every turn can all reach the definite position, when parking position inaccuracy, readjust tractor position can influence test efficiency, and when hydraulic lifting system's loading pole and the couple of bearing heavy object are not on same vertical line, hydraulic lifting system's loading pole can change the lifting force when lifting heavy object, thereby influence test data's accuracy, this technical scheme can solve above problem, specific working method is as follows: firstly, driving a tractor by a driver, enabling a loading rod of the tractor to be close to a lifting hook, when the positions of the lifting hook and the loading rod deviate, adjusting the position of the lifting hook through the action of a movable adjusting mechanism, enabling the lifting hook to be positioned right above the loading rod, enabling the offset angles of the lifting hook and the loading rod to be identical, enabling a movable plate to drive a corresponding number of lifting blocks to move upwards according to the test weight required by a hydraulic lifting system test through the action of a lifting adjusting mechanism, driving the loading rod to move upwards through the hydraulic lifting system, enabling the loading rod to move upwards and enter the inside of the lifting hook, driving the lifting hook to vertically move upwards, driving the movable rod to move upwards through the action of the movable adjusting mechanism, limiting a moving track through the action of a vertical lifting mechanism by the fixed ring, the fixed ring is enabled to vertically move upwards, the traction steel wire is driven to vertically move upwards in the ascending process of the fixed ring, the traction steel wire is driven to vertically move upwards under the action of the guide mechanism, and the corresponding number of lifting blocks are driven to move upwards, so that the loading rod of the hydraulic lifting system bears the corresponding weight to move upwards, the hydraulic lifting system is tested, the lifting hook is enabled to be adjusted according to the parking position of the loading rod under the action of the movable adjusting mechanism, the loading rod can accurately drive the lifting hook to move upwards, the influence of the parking deviation of the position of the tractor on the lifting test is reduced, when the loading rod drives the lifting hook to move upwards, the traction steel wire drives the lifting blocks with the corresponding weight to vertically move upwards, the lifting weight during the test is enabled to always vertically upwards, the lifting force is always ensured to be the same, and the accuracy of the test data of the hydraulic lifting system is improved.
Preferably, the lifting adjusting mechanism comprises a mounting plate and a plurality of connecting rings, wherein the mounting plate is positioned above the movable plate, two first limiting pins are fixedly connected to the bottom of the mounting plate, the first limiting pins are slidably inserted on the movable plate, a screw rod is rotationally connected to the mounting plate, a motor is fixedly arranged at the top of the mounting plate, an output shaft of the motor is fixedly connected to a rotating connection part of the screw rod, a connecting screw hole is formed in the movable plate, the bottom end of the screw rod is in threaded connection with the inside of the connecting screw hole, a plurality of connecting rings are respectively and fixedly connected to one side of an adjacent lifting block, the connecting rings are positioned below the connecting screw hole, and mutually-through threads are formed in the connecting rings from top to bottom; during operation, after the motor is started, the output shaft of the motor drives the screw rod to rotate at the rotation joint of the mounting plate, thereby one end of the screw rod rotates in the connection screw hole, and through the threaded connection function with the connection screw hole, in the rotating process, one end of the screw rod moves downwards along the connection screw hole, the mounting plate moves downwards under the limiting function of the first limiting pin, when one end of the screw rod rotates downwards along the connection screw hole, the screw rod is sequentially in threaded connection with a plurality of connecting rings, and when the movable plate moves upwards, the movable plate drives the screw rod to move upwards, the screw rod drives the connecting rings of the threaded connection to move upwards, thereby driving adjacent lifting blocks to move, and in the test process of the hydraulic lifting system, the connection quantity of the lifting blocks can be adjusted according to required lifting test weight.
Preferably, the guiding mechanism comprises a first connecting frame and a second connecting frame, the first connecting frame is fixedly connected above the front face of the rectangular frame, a first traction wheel is rotationally connected to the first connecting frame, the second connecting frame is fixedly connected to the top of the mounting base, a second traction wheel is rotationally connected to the second connecting frame, one end of the traction steel wire sequentially passes through the upper part of the first traction wheel and the lower parts of the two second traction wheels, and then extends upwards along the bottom of the placement hole; when the traction device works, when one end of the traction steel wire moves vertically upwards along with the fixed ring, the traction steel wire drives the movable plate to move vertically upwards through the guiding action of the first traction wheel and the second traction wheel, the traction direction is guided, and the influence of the movement track of the traction steel wire on the movement of the movable plate is reduced.
Preferably, the vertical lifting mechanism comprises two second limiting pins, the two second limiting pins are fixedly connected to the bottom of the fixed ring in a circumferential array, and the second limiting pins are both in sliding insertion connection with the supporting frame; during operation, the second limiting pin is inserted on the support frame in a sliding mode, so that when the fixing ring moves upwards, the fixing ring vertically moves upwards through the limiting effect of the second limiting pin, and the fixing ring is prevented from shifting in the transverse position.
Preferably, the movable adjusting mechanism comprises a rotating ring and a sliding shell, the rotating ring is rotationally connected to the side face of the fixed ring, the sliding shell is positioned above the fixed ring, the movable rod is slidingly connected to the inside of the sliding shell, and two L-shaped connecting plates are fixedly connected between the rotating ring and the sliding shell; during operation, remove the movable rod along sliding housing, make the distance between the load pole of lifting hook and the hydraulic lifting system of movable rod one end adjust, and rotate the swivel becket around the solid fixed ring, thereby adjust the angle of lifting hook to movable rod one end, make the lifting hook can be through length and angle's regulation, remove the load pole top of hydraulic lifting system, and with the angle synchronization of load pole, be favorable to hydraulic lifting system's load pole to lifting hook hydraulic lifting, reduce the experimental influence of tractor position deviation to hydraulic lifting system.
Preferably, the top of the sliding shell is fixedly connected with a threaded ring, the internal thread of the threaded ring is connected with a limit bolt, and one end of the limit bolt penetrates through the sliding shell and extends into the sliding shell to be positioned at the top of the movable rod; when the movable rod moves in the sliding shell, after the corresponding position is adjusted, one end of the limiting bolt and the top of the movable rod are pressed by rotating the limiting bolt, so that the position of the movable rod is limited, the loading rod is prevented from moving upwards to the inside of the lifting hook, the position of the movable rod moves to cause large clamping failure of the loading rod and the lifting hook, and errors in the test process are reduced.
Preferably, the two sides of the rectangular frame are provided with movable grooves, two sides of the rectangular frame are provided with connecting blocks, one side of each connecting block, which is close to the rectangular frame, is provided with a yielding groove, two third limiting pins are connected to each connecting block in a sliding manner, one ends of the two third limiting pins penetrate through the connecting blocks and extend to the inner sides of the yielding grooves, and are fixedly connected with limiting blocks together, first springs are sleeved on the third limiting pins, two ends of each first spring are fixedly connected to adjacent limiting blocks and the inner walls of the yielding grooves respectively, one side of each limiting block extends to the upper side of each lifting block along the movable grooves, guide inclined planes are formed in the bottoms of the limiting blocks, the other ends of the adjacent two third limiting pins are fixedly connected with pull rings together, two third limiting rods are connected to each connecting block in a sliding manner, two ends of each third limiting rod are fixedly connected to the side surfaces of the rectangular frame, and second springs are sleeved on the third limiting rods, and two ends of each second spring are fixedly connected to the adjacent third limiting rods; during operation, when the lifting block passes through hydraulic lifting system upward movement, the side of a plurality of lifting blocks that are promoted contacts the extrusion with the guide inclined plane of stopper bottom in proper order, and make the stopper outwards remove along the movable groove, and drive adjacent third spacer pin and remove, thereby extrude first spring and produce compression deformation, all pass through the back to the side of a plurality of lifting blocks from the stopper when upward movement, the elastic action extrusion stopper of first spring and make one side of stopper get back to rectangular frame's inside again along the movable groove, and be located a plurality of lifting block below that are promoted, when traction wire produces the fracture, a plurality of lifting blocks lose traction pulling force and directly drop downwards, lift the lifting block bottom that drops through the top of two stoppers, and the lifting block drives the stopper and move downwards, the stopper drives the connecting block and move downwards along the third gag lever post, the connecting block extrudees the second spring at the in-process of removal, thereby the compression through the second spring carries out elastic buffering to the whereabouts of a plurality of lifting blocks, the damage that the impact produced is reduced, the security of lifting block that the impact produced is improved, after the whereabouts is finished, make the third spacer pin drive the stopper to drop again and drop from the bottom of the adjacent lifting block, thereby make the lifting block to move downwards along the third spacer post again, the lifting block is broken.
Compared with the prior art, the invention has the following beneficial effects:
1. the lifting hook is adjusted according to the parking position of the loading rod through the action of the movable adjusting mechanism, the loading rod can accurately drive the lifting hook to move upwards, the influence of the parking deviation of the position of the tractor on a lifting test is reduced, when the loading rod drives the lifting hook to move upwards, the traction steel wire drives the lifting block with corresponding weight to move vertically upwards, so that the lifting weight in the test is always vertically upwards, the lifting force is always the same, and the accuracy of test data of the hydraulic lifting system is improved.
2. When the one end of screw rod is along connecting the screw down rotatory, with a plurality of go-between threaded connection in proper order to when the fly leaf upwards moved, the fly leaf drove the screw rod and upwards moved, and the screw rod drives threaded connection's go-between upwards and moves, thereby drives adjacent hoisting block and remove, in hydraulic lifting system's test process, can be according to required promotion test weight, adjusts the quantity of being connected of hoisting block.
3. When one end of the traction steel wire moves vertically upwards along with the fixed ring, the traction steel wire drives the movable plate to move vertically upwards through the guiding action of the first traction wheel and the second traction wheel, the traction direction is guided, and the influence of the movement track of the traction steel wire on the movement of the movable plate is reduced.
4. The movable rod is moved along the sliding shell, the distance between the lifting hook at one end of the movable rod and the loading rod of the hydraulic lifting system is adjusted, and the rotating ring is rotated around the fixed ring, so that the angle of the lifting hook at one end of the movable rod is adjusted, the lifting hook can be moved to the upper part of the loading rod of the hydraulic lifting system through the adjustment of the length and the angle, and the lifting hook is synchronous with the angle of the loading rod, so that the hydraulic lifting system is favorably lifted by the loading rod of the hydraulic lifting system to the lifting hook, and the influence of the position deviation of a tractor on the test of the hydraulic lifting system is reduced.
5. The stopper drives the connecting block and moves down along the third gag lever post, the connecting block extrudees the second spring at the in-process of removing, thereby carry out elastic buffer to the whereabouts of a plurality of lifting blocks through the compression of second spring, prevent the lifting block of whereabouts and directly smash down, reduce the damage that the striking produced, improve the security of equipment, after the whereabouts is accomplished, through pulling the pull ring, make the pull ring drive the removal of third spacer pin, the third spacer pin drives the stopper and breaks away from adjacent lifting block bottom, then upwards remove the connecting block along the third gag lever post, thereby make the stopper get back to the top of lifting block again.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the rectangular frame, lifting block and first stop lever of the present invention;
FIG. 4 is a schematic diagram of the mating structure of the traction wire, first traction wheel, and second traction wheel of the present invention;
FIG. 5 is a schematic diagram of the fitting structure of the connecting block and the limiting block of the present invention;
FIG. 6 is a schematic view of the mating structure of the movable plate, mounting plate and screw of the present invention;
fig. 7 is an exploded view of the support frame, the fixed ring, the rotating ring and the limit bolt of the present invention.
In the figure: 1. a mounting base; 2. a rectangular frame; 3. a lifting block; 4. a first stop lever; 5. a second limit rod; 6. a movable plate; 7. traction steel wire; 8. a support frame; 9. placing the hole; 10. a fixing ring; 11. a movable rod; 12. a lifting hook; 13. a mounting plate; 14. a connecting ring; 15. a first limit pin; 16. a screw; 17. a motor; 18. a connecting screw hole; 19. a first connection frame; 20. a second connecting frame; 21. a first traction wheel; 22. a second traction wheel; 23. a second limiting pin; 24. a rotating ring; 25. a sliding housing; 26. an L-shaped connecting plate; 27. a threaded ring; 28. a limit bolt; 29. a movable groove; 30. a connecting block; 31. a relief groove; 32. a third limiting pin; 33. a limiting block; 34. a first spring; 35. a pull ring; 36. a third limit rod; 37. and a second spring.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The final inspection test device of the hydraulic lifting system of the tractor comprises a mounting base 1, wherein a rectangular frame 2 is fixedly connected to the top of the mounting base 1, a plurality of lifting blocks 3 are placed in the rectangular frame 2, two first limiting rods 4 are fixedly connected to the interior of the rectangular frame 2, and the lifting blocks 3 are slidably inserted into the first limiting rods 4;
the front of the rectangular frame 2 is fixedly connected with two second limiting rods 5, the two second limiting rods 5 are connected with a movable plate 6 in a sliding insertion manner, the movable plate 6 is connected with a lifting adjusting mechanism, and the movable plate 6 drives lifting blocks 3 with different numbers to move upwards under the action of the lifting adjusting mechanism;
the top of the movable plate 6 is fixedly connected with a traction steel wire 7, the traction steel wire 7 is connected with a guide mechanism, the top of the installation base 1 is fixedly connected with a support frame 8, the top of the support frame 8 is provided with a placement hole 9, the top of the support frame 8 is provided with a fixed ring 10, a vertical lifting mechanism is connected between the fixed ring 10 and the support frame 8, one end of the traction steel wire 7 extends from the bottom of the placement hole 9 to the upper side of the support frame 8 and is fixedly connected to the inside of the fixed ring 10, a movable rod 11 is arranged above the fixed ring 10, one end of the movable rod 11 is fixedly connected with a lifting hook 12, a movable adjusting mechanism is connected between the movable rod 11 and the fixed ring 10, and the position and the angle of the lifting hook 12 are adjusted through the action of the movable adjusting mechanism; during operation, prior art is usually through placing hydraulic lifting system's loading pole on the couple of test heavy object, test hydraulic lifting system through promoting the heavy object, in the test process, need open the tractor to the test position through the navigating mate, even through observing through the image, can not guarantee that hydraulic lifting system's loading pole at every turn can all reach the definite position, when parking position inaccuracy, readjust tractor position can influence test efficiency, and when hydraulic lifting system's loading pole and the couple of bearing heavy object are not on same vertical line, hydraulic lifting system's loading pole can change the lifting force when lifting heavy object, thereby influence test data's accuracy, this technical scheme can solve above problem, specific working method is as follows: firstly, a tractor is driven by a driver, a loading rod of the tractor is close to a lifting hook 12, when the positions of the lifting hook 12 and the loading rod deviate, the position of the lifting hook 12 is regulated by the action of a movable regulating mechanism, the lifting hook 12 is positioned right above the loading rod, the offset angles of the lifting hook 12 and the loading rod are the same, then, by the action of the lifting regulating mechanism, according to the test weight required by a hydraulic lifting system test, the movable plate 6 can drive a corresponding number of lifting blocks 3 to move upwards, then, the loading rod is driven to move upwards by the hydraulic lifting system, the loading rod moves upwards and enters the inside of the lifting hook 12, so that the lifting hook 12 is driven to move vertically upwards, the lifting hook 12 drives the movable rod 11 to move upwards, the movable rod 11 drives the fixed ring 10 to move upwards by the action of the movable regulating mechanism, the fixed ring 10 limits the moving track through the action of the vertical lifting mechanism, so that the fixed ring 10 vertically moves upwards, the fixed ring 10 drives the traction steel wire 7 to vertically move upwards in the lifting process, the traction steel wire 7 drives the movable plate 6 to vertically move upwards under the action of the guide mechanism, and drives the lifting blocks 3 with corresponding numbers to move upwards, so that the loading rod of the hydraulic lifting system carries corresponding weight to move upwards, the hydraulic lifting system is tested, the lifting hook 12 is regulated according to the parking position of the loading rod under the action of the movable regulating mechanism, the loading rod can accurately drive the lifting hook 12 to move upwards, the influence of the parking deviation of the position of a tractor on the lifting test is reduced, when the loading rod drives the lifting hook 12 to move upwards, the traction steel wire 7 drives the lifting blocks 3 with corresponding weight to vertically move upwards, so that the lifting weight in the test always vertically upwards, the lifting force is guaranteed to be always the same, and the accuracy of test data of the hydraulic lifting system is improved.
As a further embodiment of the invention, the lifting adjusting mechanism comprises a mounting plate 13 and a plurality of connecting rings 14, wherein the mounting plate 13 is positioned above the movable plate 6, two first limiting pins 15 are fixedly connected to the bottom of the mounting plate 13, the first limiting pins 15 are in sliding connection with the movable plate 6, a screw 16 is rotationally connected to the mounting plate 13, a motor 17 is fixedly arranged at the top of the mounting plate 13, an output shaft of the motor 17 is fixedly connected to a rotational connection part of the screw 16, a connecting screw hole 18 is formed in the movable plate 6, the bottom end of the screw 16 is in threaded connection with the inside of the connecting screw hole 18, a plurality of connecting rings 14 are respectively fixedly connected to one side of an adjacent lifting block 3, the connecting rings 14 are positioned below the connecting screw holes 18, and mutually communicated threads are formed in the plurality of connecting rings 14 from top to bottom; when the hydraulic lifting system is in operation, after the motor 17 is started, the output shaft of the motor 17 drives the screw 16 to rotate at the rotating joint of the mounting plate 13, so that one end of the screw 16 rotates in the connecting screw hole 18 and is in threaded connection with the connecting screw hole 18, in the rotating process, one end of the screw 16 moves downwards along the connecting screw hole 18, the mounting plate 13 moves downwards under the limiting effect of the first limiting pin 15, when one end of the screw 16 rotates downwards along the connecting screw hole 18, the screw 16 is in threaded connection with the plurality of connecting rings 14 in sequence, and when the movable plate 6 moves upwards, the movable plate 6 drives the screw 16 to move upwards, the screw 16 drives the connecting rings 14 in threaded connection to move upwards, so that adjacent lifting blocks 3 are driven to move, and in the test process of the hydraulic lifting system, the connection quantity of the lifting blocks 3 can be adjusted according to the required lifting test weight.
As a further embodiment of the present invention, the guiding mechanism comprises a first connecting frame 19 and a second connecting frame 20, the first connecting frame 19 is fixedly connected above the front surface of the rectangular frame 2, the first connecting frame 19 is rotatably connected with a first traction wheel 21, the second connecting frame 20 is fixedly connected to the top of the mounting base 1, the second connecting frame 20 is rotatably connected with a second traction wheel 22, one end of the traction wire 7 sequentially passes through the upper part of the first traction wheel 21 and the lower parts of the two second traction wheels 22, and then extends upwards along the bottom of the placement hole 9; when the traction steel wire 7 moves vertically upwards along with the fixed ring 10, the traction steel wire 7 drives the movable plate 6 to move vertically upwards through the guiding action of the first traction wheel 21 and the second traction wheel 22, the traction direction is guided, and the influence of the moving track of the traction steel wire 7 on the movement of the movable plate 6 is reduced.
As a further embodiment of the invention, the vertical lifting mechanism comprises two second limiting pins 23, the two second limiting pins 23 are fixedly connected to the bottom of the fixed ring 10 in a circumferential array, and the second limiting pins 23 are both in sliding connection with the support frame 8; during operation, the second limiting pin 23 is slidably inserted on the supporting frame 8, so that the fixing ring 10 vertically moves upwards through the limiting action of the second limiting pin 23 when the fixing ring 10 moves upwards, and the fixing ring 10 is prevented from generating transverse position deviation.
As a further embodiment of the present invention, the movable adjusting mechanism comprises a rotating ring 24 and a sliding housing 25, the rotating ring 24 is rotatably connected to the side surface of the fixed ring 10, the sliding housing 25 is positioned above the fixed ring 10, the movable rod 11 is slidably connected to the inside of the sliding housing 25, and two L-shaped connecting plates 26 are fixedly connected between the rotating ring 24 and the sliding housing 25; during operation, the movable rod 11 is moved along the sliding shell 25, so that the distance between the lifting hook 12 at one end of the movable rod 11 and the loading rod of the hydraulic lifting system is adjusted, the rotating ring 24 is rotated around the fixed ring 10, the angle of the lifting hook 12 at one end of the movable rod 11 is adjusted, the lifting hook 12 can be moved to the position above the loading rod of the hydraulic lifting system through the adjustment of the length and the angle, and the lifting hook is synchronous with the angle of the loading rod, so that the hydraulic lifting hook 12 is hydraulically lifted by the loading rod of the hydraulic lifting system, and the influence of the position deviation of a tractor on the test of the hydraulic lifting system is reduced.
As a further embodiment of the present invention, a threaded ring 27 is fixedly connected to the top of the sliding housing 25, a limit bolt 28 is screwed inside the threaded ring 27, and one end of the limit bolt 28 penetrates through the sliding housing 25 and extends into the sliding housing 25 to be located at the top of the movable rod 11; when the movable rod 11 moves in the sliding shell 25 and the corresponding position is adjusted, one end of the limiting bolt 28 is pressed against the top of the movable rod 11 by rotating the limiting bolt 28, so that the position of the movable rod 11 is limited, the loading rod is prevented from moving upwards to the inside of the lifting hook 12, the loading rod and the lifting hook 12 are prevented from being greatly clamped and failed due to the movement of the position of the movable rod 11, and errors in the test process are reduced.
As a further implementation scheme of the invention, the two sides of the rectangular frame 2 are provided with the movable grooves 29, the two sides of the rectangular frame 2 are provided with the connecting blocks 30, one side of the connecting blocks 30 close to the rectangular frame 2 is provided with the abdication grooves 31, the connecting blocks 30 are respectively and slidably inserted with two third limit pins 32, one ends of the two third limit pins 32 respectively penetrate through the connecting blocks 30 and extend to the inner sides of the abdication grooves 31 and are fixedly connected with the limit blocks 33 together, the third limit pins 32 are respectively sleeved with the first springs 34, two ends of the first springs 34 are respectively and fixedly connected to the adjacent limit blocks 33 and the inner walls of the abdication grooves 31, one side of each limit block 33 extends to the upper side of the lifting block 3 along the movable groove 29, the bottoms of each limit block 33 are provided with guide inclined planes, the other ends of the adjacent two third limit pins 32 are fixedly connected with pull rings 35 together, the connecting blocks 30 are respectively and slidably inserted with two third limit rods 36, two ends of each third limit rod 36 are respectively and fixedly connected to the side surfaces of the rectangular frame 2, the third limit rods 36 are respectively and fixedly connected with the two ends of each second spring 37; when the lifting block 3 moves upwards through the hydraulic lifting system, the side surfaces of the lifted lifting blocks 3 are sequentially contacted and extruded with the guide inclined surfaces at the bottoms of the limiting blocks 33, the limiting blocks 33 are enabled to move outwards along the movable grooves 29, the adjacent third limiting pins 32 are driven to move, the first springs 34 are extruded to generate compression deformation, when the lifting blocks 3 move upwards and pass through the side surfaces of the limiting blocks 33, the elastic action of the first springs 34 extrudes the limiting blocks 33, one sides of the limiting blocks 33 are enabled to return to the inside of the rectangular frame 2 again along the movable grooves 29, the lifting blocks 3 are located below the lifted lifting blocks 3, when the traction steel wires 7 break, the lifting blocks 3 drop downwards directly after losing traction tension, lifting the bottom of the falling lifting block 3 through the tops of the two limiting blocks 33, the lifting block 3 drives the limiting blocks 33 to move downwards, the limiting blocks 33 drive the connecting blocks 30 to move downwards along the third limiting rods 36, the connecting blocks 30 squeeze the second springs 37 in the moving process, accordingly the falling of the plurality of lifting blocks 3 is elastically buffered through the compression of the second springs 37, the falling lifting blocks 3 are prevented from being directly and downwards crashed, damage caused by collision is reduced, safety of equipment is improved, after the falling is finished, the pull ring 35 is pulled, the pull ring 35 drives the third limiting pins 32 to move, the third limiting pins 32 drive the limiting blocks 33 to separate from the bottoms of the adjacent lifting blocks 3, and then the connecting blocks 30 are upwards moved along the third limiting rods 36, so that the limiting blocks 33 return to the upper part of the lifting blocks 3 again.
The working principle of the invention is as follows:
firstly, a tractor is driven by a driver, a loading rod of the tractor is close to a lifting hook 12, when the positions of the lifting hook 12 and the loading rod deviate, the position of the lifting hook 12 is regulated by the action of a movable regulating mechanism, the lifting hook 12 is positioned right above the loading rod, the offset angles of the lifting hook 12 and the loading rod are the same, then, by the action of the lifting regulating mechanism, according to the test weight required by a hydraulic lifting system test, the movable plate 6 can drive a corresponding number of lifting blocks 3 to move upwards, then, the loading rod is driven to move upwards by the hydraulic lifting system, the loading rod moves upwards and enters the inside of the lifting hook 12, so that the lifting hook 12 is driven to move vertically upwards, the lifting hook 12 drives the movable rod 11 to move upwards, the movable rod 11 drives the fixed ring 10 to move upwards by the action of the movable regulating mechanism, the fixed ring 10 limits the moving track through the action of the vertical lifting mechanism, so that the fixed ring 10 vertically moves upwards, the fixed ring 10 drives the traction steel wire 7 to vertically move upwards in the lifting process, the traction steel wire 7 drives the movable plate 6 to vertically move upwards under the action of the guide mechanism, and drives the lifting blocks 3 with corresponding numbers to move upwards, so that the loading rod of the hydraulic lifting system carries corresponding weight to move upwards, the hydraulic lifting system is tested, the lifting hook 12 is regulated according to the parking position of the loading rod under the action of the movable regulating mechanism, the loading rod can accurately drive the lifting hook 12 to move upwards, the influence of the parking deviation of the position of a tractor on the lifting test is reduced, when the loading rod drives the lifting hook 12 to move upwards, the traction steel wire 7 drives the lifting blocks 3 with corresponding weight to vertically move upwards, so that the lifting weight in the test always vertically upwards, the lifting force is guaranteed to be always the same, and the accuracy of test data of the hydraulic lifting system is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (3)
1. The final inspection test device for the hydraulic lifting system of the tractor comprises a mounting base (1) and is characterized in that a rectangular frame (2) is fixedly connected to the top of the mounting base (1), a plurality of lifting blocks (3) are placed in the rectangular frame (2), two first limiting rods (4) are fixedly connected to the inside of the rectangular frame (2), and the lifting blocks (3) are slidably inserted on the first limiting rods (4);
the front of the rectangular frame (2) is fixedly connected with two second limiting rods (5), two second limiting rods (5) are connected with a movable plate (6) in a sliding insertion mode, the movable plate (6) is connected with a lifting adjusting mechanism, and the movable plate (6) drives lifting blocks (3) with different numbers to move upwards under the action of the lifting adjusting mechanism;
the device comprises a movable plate (6), a traction steel wire (7) is fixedly connected to the top of the movable plate (6), a guide mechanism is connected to the traction steel wire (7), a support frame (8) is fixedly connected to the top of a mounting base (1), a placement hole (9) is formed in the top of the support frame (8), a fixed ring (10) is arranged on the top of the support frame (8), a vertical lifting mechanism is connected between the fixed ring (10) and the support frame (8), one end of the traction steel wire (7) extends from the bottom of the placement hole (9) to the upper side of the support frame (8) and then is fixedly connected to the inside of the fixed ring (10), a movable rod (11) is arranged above the fixed ring (10), a lifting hook (12) is fixedly connected to one end of the movable rod (11), and a movable adjusting mechanism is connected between the movable rod (11) and the fixed ring (10), and the position and the angle of the lifting hook (12) are adjusted through the action of the movable adjusting mechanism;
the lifting adjusting mechanism comprises a mounting plate (13) and a plurality of connecting rings (14), wherein the mounting plate (13) is positioned above the movable plate (6), two first limiting pins (15) are fixedly connected to the bottom of the mounting plate (13), the first limiting pins (15) are all in sliding connection with the movable plate (6), a screw rod (16) is rotationally connected to the mounting plate (13), a motor (17) is fixedly arranged at the top of the mounting plate (13), an output shaft of the motor (17) is fixedly connected to the rotating connection position of the screw rod (16), a connecting screw hole (18) is formed in the movable plate (6), the bottom ends of the screw rods (16) are in threaded connection with the inside of the connecting screw hole (18), a plurality of connecting rings (14) are respectively and fixedly connected to one side of the adjacent lifting blocks (3), the connecting rings (14) are all positioned below the connecting screw holes (18), and threads which are mutually communicated are formed in the inside the connecting rings (14) from top to bottom;
the guiding mechanism comprises a first connecting frame (19) and a second connecting frame (20), wherein the first connecting frame (19) is fixedly connected to the upper side of the front face of the rectangular frame (2), a first traction wheel (21) is rotationally connected to the first connecting frame (19), the second connecting frame (20) is fixedly connected to the top of the mounting base (1), a second traction wheel (22) is rotationally connected to the second connecting frame (20), and one end of the traction steel wire (7) sequentially passes through the upper side of the first traction wheel (21) and the lower sides of the two second traction wheels (22) and then extends upwards along the bottom of the placement hole (9);
the vertical lifting mechanism comprises two second limiting pins (23), the two second limiting pins (23) are fixedly connected to the bottom of the fixed ring (10) in a circumferential array, and the second limiting pins (23) are both in sliding insertion connection with the support frame (8);
the movable adjusting mechanism comprises a rotating ring (24) and a sliding shell (25), the rotating ring (24) is rotationally connected to the side face of the fixed ring (10), the sliding shell (25) is located above the fixed ring (10), the movable rod (11) is slidingly connected to the inside of the sliding shell (25), and two L-shaped connecting plates (26) are fixedly connected between the rotating ring (24) and the sliding shell (25).
2. The final inspection test device for the hydraulic lifting system of the tractor according to claim 1, wherein a threaded ring (27) is fixedly connected to the top of the sliding housing (25), a limit bolt (28) is connected to the internal thread of the threaded ring (27), and one end of the limit bolt (28) penetrates through the sliding housing (25) and extends into the sliding housing (25) and then is located at the top of the movable rod (11).
3. The final inspection test device for the hydraulic lifting system of the tractor according to claim 1, wherein movable grooves (29) are formed in two sides of the rectangular frame (2), connecting blocks (30) are formed in two sides of the rectangular frame (2), a yielding groove (31) is formed in one side, close to the rectangular frame (2), of each connecting block (30), two third limiting pins (32) are slidably inserted into the connecting blocks (30), one ends of the two third limiting pins (32) penetrate through the connecting blocks (30) and extend into the yielding groove (31), limiting blocks (33) are fixedly connected together, first springs (34) are sleeved on the third limiting pins (32), two ends of each first spring (34) are fixedly connected to the adjacent limiting blocks (33) and the inner walls of the yielding groove (31), one side of each limiting block (33) extends to the upper portion of the lifting block (3) along the movable groove (29), two ends of each limiting block (33) are fixedly connected with limiting rods (36) on the two sides of the rectangular frame (32), the third limiting rod (36) is sleeved with a second spring (37), and two ends of the second spring (37) are fixedly connected to the bottom ends of the adjacent connecting block (30) and the third limiting rod (36) respectively.
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| CN202310863888.0A CN116857263B (en) | 2023-07-14 | 2023-07-14 | Final inspection test device for hydraulic lifting system of tractor |
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| CN202310863888.0A CN116857263B (en) | 2023-07-14 | 2023-07-14 | Final inspection test device for hydraulic lifting system of tractor |
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| CN116857263B true CN116857263B (en) | 2024-02-27 |
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| CN110736631A (en) * | 2019-10-28 | 2020-01-31 | 吉林大学 | On-line detection automatic hitching device for tractor hydraulic suspension system |
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|---|---|---|---|---|
| JPH1025099A (en) * | 1996-07-09 | 1998-01-27 | Orion Techno Kk | Turning angle load testing method for forklift and testing device |
| CN201688976U (en) * | 2010-04-20 | 2010-12-29 | 洛阳西苑车辆与动力检验所有限公司 | Tractor suspender lifting capability test bed |
| CN203310639U (en) * | 2013-06-24 | 2013-11-27 | 邱韶峰 | Tractor suspension device lifting capacity test bench |
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|---|---|
| CN116857263A (en) | 2023-10-10 |
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