CN118123470A - Pressing device for half shaft bearing of chassis of tractor - Google Patents
Pressing device for half shaft bearing of chassis of tractor Download PDFInfo
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- CN118123470A CN118123470A CN202410571264.6A CN202410571264A CN118123470A CN 118123470 A CN118123470 A CN 118123470A CN 202410571264 A CN202410571264 A CN 202410571264A CN 118123470 A CN118123470 A CN 118123470A
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- 238000003825 pressing Methods 0.000 title abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 230000000670 limiting effect Effects 0.000 claims abstract description 17
- 238000010030 laminating Methods 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 238000006073 displacement reaction Methods 0.000 claims description 43
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 241000826860 Trapezium Species 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 33
- 230000008569 process Effects 0.000 abstract description 28
- 230000009471 action Effects 0.000 description 11
- 230000005484 gravity Effects 0.000 description 6
- 239000002775 capsule Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
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Abstract
The invention discloses a pressing device for axle bearings of a chassis of a tractor, which belongs to the field of bearing pressing and comprises a workbench, wherein a fixing seat is fixedly connected to the outer surface of the upper end of the workbench, a buffer groove is formed in the outer surface of the upper end of the fixing seat, an axle shaft is in sliding fit contact with the inner surface of the buffer groove, a lifting buffer mechanism is arranged on the inner side of the buffer groove and used for limiting the axle shaft in a lifting manner, a connecting seat is fixedly connected to the outer surface of the upper end of the workbench, and a connecting plate is fixedly connected to the outer surface of the front end of the connecting seat. Can realize through setting up fixture, closely laminating through annular distribution's chuck and semi-axis surface and carry out the centre gripping fixedly to the semi-axis to can carry out the centre gripping respectively fixedly to semi-axis lower extreme and middle-end, can reduce the semi-axis effectively and the bearing and take place the probability of skew in the assembly process, help guaranteeing the assembly quality of semi-axis and bearing.
Description
Technical Field
The invention relates to the field of bearing pressing, in particular to a pressing device for a half shaft bearing of a tractor chassis.
Background
The axle shaft, also called the drive shaft, is an important component in the vehicle drive system, and mainly has the function of connecting the differential mechanism with the drive wheel, and is responsible for transmitting torque between the gearbox speed reducer and the drive wheel, so that the drive wheel can drive the vehicle to run, and the inner end and the outer end of the axle shaft are respectively provided with a universal joint which is respectively connected with the speed reducer gear and the inner ring of the hub bearing through the spline on the universal joint, and are one of important parts of an automobile, a tractor and a forklift.
The Chinese patent with the publication number of CN216441980U discloses a pressing tool for the axle shaft bearing of a chassis of a tractor, rubber pads on two clamping plates are tightly attached to the surface of an output shaft, and a handle is connected with a fixed plate by utilizing a locating pin, so that a rotating rod can be prevented from rotating at will, and the clamping and fixing functions are realized on the half axle shaft.
In the prior art, the axle shaft bearing of the tractor is clamped and fixed in the middle of the axle shaft in the production and processing process, although the stability of the axle shaft in the clamping process can be improved to a certain extent, when the bearing is assembled through the device, the bearing is required to be manually placed at the upper end of the axle shaft and supported, and when the bearing is pressed downwards through the hydraulic rod, the bearing and the axle shaft are offset in the stress direction due to the fact that certain angle deviation exists in the manual placement of the bearing, and the axle shaft is clamped and fixed only in the middle of the axle shaft, the lower end of the axle shaft cannot achieve a fixed limiting effect, the axle shaft can incline due to the stress deviation, so that the pressing precision of the axle shaft surface bearing is affected, a large operation risk exists in the manual placement and supporting mode when the bearing is pressed, and the hand of an operator is damaged accidentally.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the pressing device for the half shaft bearing of the chassis of the tractor, which can realize the clamping and fixing of the half shaft through the clamping mechanism and the tight fitting of the annularly distributed clamping heads and the surface of the half shaft, so that the lower end and the middle end of the half shaft can be respectively clamped and fixed, the probability of the offset of the half shaft and the bearing in the assembly process can be effectively reduced, and the assembly quality of the half shaft and the bearing can be guaranteed.
In order to solve the problems, the invention adopts the following technical scheme.
The utility model provides a tractor chassis semi-axis bearing compression fittings, includes the workstation, workstation upper end surface fixedly connected with fixing base, the buffer tank has been seted up to fixing base upper end surface, buffer tank internal surface slip laminating contact has the semi-axis, the buffer tank inboard is provided with lifts buffer gear, it is used for lifting spacing to the semi-axis to lift buffer gear;
The outer surface of the upper end of the workbench is fixedly connected with a connecting seat, the outer surface of the front end of the connecting seat is fixedly connected with a connecting plate, the connecting plate is in a ring shape, the outer surface of the upper end of the connecting plate is fixedly connected with a clamping pipe, the inner side of the clamping pipe is provided with a clamping mechanism, and the clamping mechanism is used for clamping and fixing a half shaft;
The outer surface of the upper end of the connecting seat is fixedly connected with an air cylinder, the upper end of the connecting rod of the air cylinder is in fit contact with a displacement plate, the outer surface of the upper end of the workbench is fixedly connected with a supporting plate, the outer surface of the front end of the supporting plate is provided with a driving mechanism, and the driving mechanism is used for driving the connecting plate to reciprocate up and down.
Further, the lifting buffer mechanism comprises an air cavity formed in the outer surface of the upper end of the workbench, the inner surface of the air cavity is slidably connected with a piston plate, the outer surface of the upper end of the piston plate is fixedly connected with a push rod, the upper end of the push rod penetrates through the inner side of the buffer groove and is fixedly connected with a supporting plate, the outer surface of the upper end of the supporting plate is in fit contact with the lower end of the half shaft, the push rod is in sliding fit contact with the fixing seat, the outer surface of the lower end of the piston plate is fixedly connected with a spring, the lower end of the spring is fixedly connected with the lower end of the inner surface of the air cavity, the lower end of the inner surface of the buffer groove is provided with a clamping groove, and the clamping groove is located under the supporting plate.
Further, the storage groove is formed in the inner side of the fixing base, the storage groove inner surface is far away from one side of the half shaft and fixedly connected with the bag body, the storage groove and the bag body are distributed in a plurality of groups and are distributed in an annular array, the friction plate is fixedly connected to one side of the outer surface of the bag body, which is close to the half shaft, and is of an arc-shaped structure, the air duct is fixedly connected to one side, which is far away from the friction plate, of the outer surface of the bag body, and the lower end of the air duct penetrates through the inner side of the workbench and is communicated with the inner part of the air cavity.
Further, the fixture is including seting up the spacing groove at clamping tube upper end surface, the spacing groove is the ring form, the spacing inslot side is provided with the spiral shell, the spiral shell is connected with clamping tube screw drive through seting up the screw thread at its external surface, clamping groove has been seted up to clamping tube upper end surface, the quantity of clamping groove is three and is annular array and distributes, the clamping groove is kept away from semi-axis one end and is linked together with spacing inslot portion.
Further, clamping groove internal surface sliding connection has the wedge, the spiral shell passes through the screw thread and the wedge screw drive of its internal surface to be connected, the wedge cross-section is trapezium structure, clamping groove internal surface lower extreme sliding connection has the chuck, wedge surface and chuck slip laminating contact, the chuck surface is close to semi-axis one side and has been seted up anti-skidding groove, the quantity of anti-skidding groove is a plurality of groups and is linear array distribution.
Further, the actuating mechanism is including seting up the displacement groove at backup pad front end surface, both ends fixedly connected with slide bar about the displacement groove internal surface, the slide bar runs through both ends about the displacement board and with displacement board slip laminating contact, displacement board and displacement groove internal surface slip laminating contact, both ends are fixedly connected with air pipe joint respectively about the cylinder right-hand member surface.
Further, the front side of the displacement plate is provided with an assembly mechanism, the assembly mechanism is used for respectively assembling bearings at shaft heads of the half shafts, the assembly mechanism comprises a balancing weight fixedly connected with the outer surface of the front end of the displacement plate, the balancing weight is ring-shaped, the outer surface of the front end of the support plate is provided with scale marks, and the scale marks are distributed in parallel with the displacement grooves.
Further, the laminating of semi-axis upper end is contacted and is had the guide bar, the guide slot has been seted up at guide bar surface middle part, guide slot internal surface slip laminating contact has the stopper, both ends run through to the guide slot outside and with balancing weight fixed connection about the stopper, guide bar surface sliding connection has the dress pipe.
Further, the outer surface of the upper end of the assembly pipe is in fit contact with the lower end of the balancing weight, the lower end of the assembly pipe is fixedly connected with a gasket, the gasket is in a ring shape, the lower end of the gasket is in fit contact with a bearing, a clamping mechanism is arranged on the outer surface of the assembly pipe, and the clamping mechanism is used for clamping the bearing.
Further, the clamping mechanism comprises notches formed in the outer surface of the assembly pipe, the notches are distributed in a plurality of groups and are distributed in an annular array mode, a mandrel is fixedly connected to the inner side of each notch, the outer surface of the mandrel is rotationally connected with a buckle, the buckle is of an L-shaped structure, the lower side of the buckle is in clamping contact with the outer surface of the lower end of the bearing, the upper side of the outer surface of the assembly pipe is in threaded connection with a movable sleeve, the movable sleeve is annular, the lower end of the movable sleeve is in circular arc shape, and the lower side of the outer surface of the movable sleeve is in sliding fit contact with the outer surface of the buckle.
Compared with the prior art, the invention has the advantages that:
(1) According to the invention, the clamping mechanism is arranged, and the clamping heads distributed in an annular manner are tightly attached to the surfaces of the half shafts to clamp and fix the half shafts, so that the lower ends and the middle ends of the half shafts can be respectively clamped and fixed, the probability of offset of the half shafts and the bearings in the assembly process can be effectively reduced, and the assembly quality of the half shafts and the bearings can be ensured;
(2) According to the invention, the lifting buffer mechanism is arranged, the half shaft can be buffered in the half shaft placement process through the supporting plate matched with the spring, so that the impact force in the half shaft placement process can be reduced, meanwhile, the buffer groove can perform a preliminary limiting function on the lower end of the half shaft, so that the half shaft can be clamped and fixed more accurately, the annular friction plates are attached to the surface of the half shaft to clamp and fix the half shaft, the shaking in the half shaft assembly process can be effectively reduced, and the stability and reliability of the half shaft assembly operation process can be further improved;
(3) According to the invention, the assembly mechanism is arranged, and the impact force generated by the impact of the balancing weight is transmitted to the bearing through the assembly pipe and the gasket, so that the bearing is sleeved on the surface of the half shaft under the action of external force, the assembly precision of the bearing can be improved, meanwhile, the assembly difficulty of the bearing can be effectively reduced in a gravity knocking mode, and the workload of workers in the assembly process is reduced;
(4) According to the invention, the clamping mechanism is arranged, the lower ends of the buckles are tightly attached to the lower side of the outer ring of the bearing, and the bearing is clamped and supported by the buckles distributed in an annular manner, so that the upper end of the bearing is tightly attached to the sealing ring, the probability of deflection in the bearing assembly process can be effectively reduced, and the assembly precision of the half-axle bearing can be further improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the whole structure of the present invention;
FIG. 3 is a top view of the overall structure of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A in FIG. 3 in accordance with the present invention;
FIG. 5 is an enlarged schematic view of the invention at B in FIG. 4;
FIG. 6 is an enlarged schematic view of FIG. 4 at C in accordance with the present invention;
FIG. 7 is an enlarged schematic view of the invention at D in FIG. 4;
FIG. 8 is an enlarged schematic view of FIG. 4 at E in accordance with the present invention;
fig. 9 is an enlarged schematic view of fig. 1 at F in accordance with the present invention.
The reference numerals in the figures illustrate:
1. a work table; 2. a support plate; 3. a connecting seat; 4. a cylinder; 5. an air pipe joint; 6. a displacement groove; 7. a slide bar; 8. a displacement plate; 9. a fixing seat; 10. a connecting plate; 11. clamping the pipe; 12. a half shaft; 13. a spiral sleeve; 14. an air duct; 15. an air cavity; 16. a spring; 17. a piston plate; 18. a push rod; 19. a buffer tank; 20. a clamping groove; 21. a supporting plate; 22. a storage groove; 23. a friction plate; 24. wedge blocks; 25. a limit groove; 26. a chuck; 27. an anti-skid groove; 28. a guide rod; 29. balancing weight; 30. scale marks; 31. a guide groove; 32. a limiting block; 33. assembling a pipe; 34. a bearing; 35. a gasket; 36. a moving sleeve; 37. a mandrel; 38. a buckle; 39. a bladder; 40. a notch; 41. clamping grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Referring to fig. 1 to 9, a pressing device for axle bearings of a chassis of a tractor comprises a workbench 1, wherein a fixing seat 9 is fixedly connected to the outer surface of the upper end of the workbench 1, a buffer groove 19 is formed in the outer surface of the upper end of the fixing seat 9, an axle shaft 12 is in sliding fit contact with the inner surface of the buffer groove 19, and a lifting buffer mechanism is arranged on the inner side of the buffer groove 19 and used for limiting lifting of the axle shaft 12;
The outer surface of the upper end of the workbench 1 is fixedly connected with a connecting seat 3, the outer surface of the front end of the connecting seat 3 is fixedly connected with a connecting plate 10, the connecting plate 10 is in a ring shape, the outer surface of the upper end of the connecting plate 10 is fixedly connected with a clamping pipe 11, the inner side of the clamping pipe 11 is provided with a clamping mechanism, and the clamping mechanism is used for clamping and fixing a half shaft 12;
The outer surface fixedly connected with cylinder 4 of connecting seat 3 upper end, cylinder 4 connecting rod upper end laminating contact has displacement board 8, and workstation 1 upper end outer surface fixedly connected with backup pad 2, backup pad 2 front end surface are provided with actuating mechanism, and actuating mechanism is used for driving connecting plate 10 up-and-down reciprocating motion.
Through the technical scheme, when the half-shaft bearing pressing device is used, the pressing device is placed at a proper position through the workbench 1, the half-shaft 12 bearing 34 pressing device is fixedly supported through the workbench 1, then the half-shaft 12 is placed in the buffer groove 19 on the upper surface of the fixed seat 9, the half-shaft 12 is lifted and supported through the lifting buffer mechanism, after the half-shaft 12 is placed in place, the half-shaft 12 is fixedly clamped through the clamping mechanism, the stability in the assembly operation process is improved, meanwhile, the driving assembly can utilize the driving force of the air cylinder 4, and the quick assembly of the half-shaft 12 surface bearing 34 is assisted.
As shown in fig. 1, fig. 4 and fig. 8, the lifting buffer mechanism comprises an air cavity 15 formed on the outer surface of the upper end of the workbench 1, a piston plate 17 is slidably connected to the inner surface of the air cavity 15, a push rod 18 is fixedly connected to the outer surface of the upper end of the piston plate 17, the upper end of the push rod 18 penetrates through the inner side of a buffer groove 19 and is fixedly connected with a supporting plate 21, the outer surface of the upper end of the supporting plate 21 is in contact with the lower end of the half shaft 12, the push rod 18 is slidably in contact with the fixed seat 9, a spring 16 is fixedly connected to the outer surface of the lower end of the piston plate 17, the lower end of the spring 16 is fixedly connected with the lower end of the inner surface of the air cavity 15, a clamping groove 20 is formed in the lower end of the inner surface of the buffer groove 19, and the clamping groove 20 is located under the supporting plate 21.
Through the technical scheme, when the lifting buffer mechanism works, firstly one end of the half shaft 12 is placed above the supporting plate 21 on the inner side of the buffer groove 19, the half shaft 12 is lifted through the supporting plate 21, the supporting plate 21 can move downwards under the action of gravity of the half shaft 12, the supporting plate 21 drives the piston plate 17 to synchronously move downwards through the push rod 18 in the downward moving process, so that the piston plate 17 slides downwards along the inner surface of the air cavity 15 to squeeze air on the lower side of the piston plate 17, meanwhile, the piston plate 17 compresses the spring 16 in the downward moving process, under the action of elasticity of the spring 16, the half shaft 12 can be buffered in the placing process of the half shaft 12 through the supporting plate 21, so that impact force in the placing process of the half shaft 12 can be reduced, and meanwhile, the lower end of the half shaft 12 can be subjected to a preliminary limiting effect through the buffer groove 19 so as to clamp and fix the half shaft 12 more accurately.
As shown in fig. 4 and 7, the inner side of the fixing seat 9 is provided with a storage groove 22, one side, far away from the half shaft 12, of the inner surface of the storage groove 22 is fixedly connected with a bag body 39, the number of the storage groove 22 and the bag body 39 is a plurality of groups and distributed in an annular array, one side, close to the half shaft 12, of the outer surface of the bag body 39 is fixedly connected with a friction plate 23, the friction plate 23 is in an arc-shaped structure, one side, far away from the friction plate 23, of the outer surface of the bag body 39 is fixedly connected with an air duct 14, and the lower end of the air duct 14 penetrates into the inner side of the workbench 1 and is communicated with the inside of the air cavity 15.
Through the technical scheme, in the process that the half shaft 12 slides down in the buffer groove 19, gas in the air cavity 15 enters the air duct 14 under the pressure action of the piston plate 17 and enters the inside of the bag body 39 through the air duct 14, the bag body 39 is hidden and contained in the containing groove 22 and cannot block sliding of the half shaft 12, the bag body 39 is inflated after the gas enters the bag body 39, the bag body 39 is in a plurality of groups and distributed outside the half shaft 12 in a circular ring shape, the friction plates 23 are pushed to be close to one side of the half shaft 12 after the volume of the bag body 39 is inflated, the friction plates 23 are tightly attached to the surface of the half shaft 12, the annularly distributed friction plates 23 are attached to the surface of the half shaft 12 to clamp and fix the half shaft 12, so that shaking in the assembly process of the half shaft 12 can be effectively reduced, and stability and reliability in the assembly operation process of the half shaft 12 can be further improved.
As shown in fig. 1, 4 and 6, the clamping mechanism comprises a limiting groove 25 formed in the outer surface of the upper end of a clamping tube 11, the limiting groove 25 is in a circular ring shape, a spiral sleeve 13 is arranged on the inner side of the limiting groove 25, the spiral sleeve 13 is in spiral transmission connection with the clamping tube 11 through threads formed in the outer surface of the spiral sleeve, clamping grooves 41 are formed in the outer surface of the upper end of the clamping tube 11, the number of the clamping grooves 41 is three, the clamping grooves 41 are distributed in an annular array, and one end, far away from a half shaft 12, of each clamping groove 41 is communicated with the inside of the limiting groove 25.
The inner surface of the clamping groove 41 is slidably connected with a wedge block 24, the spiral sleeve 13 is in spiral transmission connection with the wedge block 24 through threads on the inner surface of the spiral sleeve, the section of the wedge block 24 is of a trapezoid structure, the lower end of the inner surface of the clamping groove 41 is slidably connected with a chuck 26, the outer surface of the wedge block 24 is in sliding fit contact with the chuck 26, anti-slip grooves 27 are formed in one side, close to the half shaft 12, of the outer surface of the chuck 26, and the number of the anti-slip grooves 27 is a plurality of groups and is distributed in a linear array.
Through the technical scheme, the half shaft 12 passes through the middle part of the clamping tube 11 before being assembled, then the half shaft 12 is clamped and fixed through the clamping mechanism, when the clamping mechanism is used, an operator rotates the spiral sleeve 13, the spiral sleeve 13 is connected with the spiral transmission of the clamping tube 11 to slide downwards along the limiting groove 25 in the rotating process, the spiral sleeve 13 is connected with the spiral sleeve 13 in the downward moving process through the spiral transmission, the wedge block 24 moves downwards along with the rotation of the spiral sleeve 13, the contact surface of the wedge block 24 and the clamping head 26 is inclined and smooth in surface, the clamping head 26 slides along the inner surface of the clamping groove 41 under the extrusion force of the wedge block 24 in the downward moving process of the clamping groove 41, so that the clamping head 26 is tightly attached to the surface of the half shaft 12, the anti-slip groove 27 formed on the surface of the clamping head 26 can effectively increase the friction force between the clamping head 26 and the half shaft 12, so that the lower end and the middle end of the half shaft 12 are clamped and fixed again, the probability of the shifting of the half shaft 12 and the bearing 34 in the assembling process can be effectively reduced, and the quality of the half shaft 12 and the bearing 34 can be guaranteed.
As shown in fig. 1 and fig. 4, the driving mechanism comprises a displacement groove 6 formed on the outer surface of the front end of the supporting plate 2, the upper end and the lower end of the inner surface of the displacement groove 6 are fixedly connected with slide bars 7, the slide bars 7 penetrate through the upper end and the lower end of the displacement plate 8 and are in sliding fit contact with the displacement plate 8, the displacement plate 8 is in sliding fit contact with the inner surface of the displacement groove 6, and the upper end and the lower end of the outer surface of the right end of the cylinder 4 are respectively fixedly connected with an air pipe joint 5.
Through the technical scheme, during operation of the driving mechanism, the workbench 1 fixedly supports the supporting plate 2, then the air pipe connector 5 is connected with the air compressor through the pipeline, the air cylinder 4 is driven to start to operate through compressed air, the air cylinder 4 connecting rod moves upwards to push the displacement plate 8 to move upwards synchronously, the displacement groove 6 can slide and guide the displacement plate 8, so that the displacement plate 8 slides more stably, the sliding rod 7 on the inner side of the displacement groove 6 can keep the front end and the rear end of the displacement plate 8 balanced, the displacement plate 8 can vertically move upwards in a horizontal state, when the air cylinder 4 connecting rod contracts downwards, the connecting plate 10 is separated from the upper end of the air cylinder 4 connecting rod under the action of inertia, and then the connecting plate 10 slides downwards under the action of gravity, so that the assembly mechanism is driven to reciprocate to realize quick clamping of the bearing 34.
As shown in fig. 4 and 5, an assembling mechanism is disposed on the front side of the displacement plate 8, the assembling mechanism is used for assembling the bearings 34 at the axle heads of the axle shafts 12 respectively, the assembling mechanism includes a balancing weight 29 fixedly connected with the outer surface of the front end of the displacement plate 8, the balancing weight 29 is in a ring shape, scale marks 30 are provided on the outer surface of the front end of the support plate 2, and the scale marks 30 are distributed parallel to the displacement grooves 6.
The upper end laminating contact of semi-axis 12 has guide bar 28, and guide bar 28 surface middle part has offered guide slot 31, and guide slot 31 internal surface slip laminating contact has stopper 32, and stopper 32 left and right sides both ends run through to the guide slot 31 outside and with balancing weight 29 fixed connection, guide bar 28 surface sliding connection has dress pipe 33.
The outer surface of the upper end of the assembly pipe 33 is in fit contact with the lower end of the balancing weight 29, the lower end of the assembly pipe 33 is fixedly connected with a gasket 35, the gasket 35 is in a ring shape, the lower end of the gasket 35 is in fit contact with a bearing 34, a clamping mechanism is arranged on the outer surface of the assembly pipe 33 and used for clamping the bearing 34 in a clamping mode.
Through the technical scheme, when the assembly mechanism is used for carrying out assembly operation on the bearing 34, the lower end of the guide rod 28 is firstly placed on the upper end face of the half shaft 12, the assembly pipe 33 clamps the bearing 34 on the lower side of the assembly pipe 33 through the clamping mechanism, meanwhile, the assembly pipe 33 and the bearing 34 are located on the upper side of the outer surface of the half shaft 12 under the action of gravity, the annular gasket 35 is fixed at the lower end of the assembly pipe 33, the gasket 35 is made of rubber, the lower edge of the gasket 35 is tightly attached to the inner ring of the bearing 34, then the displacement plate 8 can drive the balancing weight 29 to synchronously move upwards in the process of moving upwards, then the balancing weight 29 and the displacement plate 8 synchronously fall under the action of gravity, the guide groove 31 is formed in the surface of the guide rod 28, and meanwhile, the limiting block 32 carries out sliding guide on the balancing weight 29 through the guide groove 31, so that the balancing weight 29 slides more stably, the balancing weight 29 can collide with the assembly pipe 33 in the falling process, the impact force generated by the collision is transferred to the bearing 34 through the assembly pipe 33 and the gasket 35, so that the bearing 34 is sleeved on the surface of the half shaft 12 under the action of the external force, the bearing 34 can be conveniently assembled with the corresponding scale line 30 in the assembly process, the position of the displacement plate 8 can drive the balancing weight 34 to move upwards, the bearing 34 can be conveniently and effectively assembled with the bearing 34 in the process of the assembly difficulty of the assembly by the operation, and the assembly accuracy can be reduced.
As shown in fig. 1, fig. 4 and fig. 9, the clamping mechanism comprises a plurality of groups of notches 40 formed on the outer surface of the assembly pipe 33, the notches 40 are distributed in an annular array, a mandrel 37 is fixedly connected to the inner side of each notch 40, a buckle 38 is rotatably connected to the outer surface of the mandrel 37, the buckles 38 are of an L-shaped structure, the lower sides of the buckles 38 are in clamping contact with the outer surface of the lower end of the bearing 34, a movable sleeve 36 is in threaded connection with the upper side of the outer surface of the assembly pipe 33, the movable sleeve 36 is in a circular shape, the lower end of the movable sleeve 36 is in an arc shape, and the lower sides of the outer surfaces of the movable sleeve 36 are in sliding fit contact with the outer surfaces of the buckles 38.
Through the above technical scheme, in order to improve the stability of bearing 34 assembly in-process, the probability that bearing 34 accidentally drops when assembling has been reduced, clamping mechanism has been set up, clamping mechanism uses, bearing 34 places the downside at assembly pipe 33, then the operator rotates movable sleeve 36, movable sleeve 36 is through being connected with the screw drive of assembly pipe 33, movable sleeve 36 moves down in step in the rotation in-process, movable sleeve 36 can extrude buckle 38 surface in the in-process that moves down, buckle 38 rotates around dabber 37 under the thrust effect of movable sleeve 36, the lower extreme of buckle 38 closely laminates in the downside of bearing 34 outer lane, carry out the block support through annularly distributed buckle 38 to bearing 34, can make bearing 34 upper end closely laminate with the sealing washer, thereby can effectively reduce the probability that bearing 34 assembly in-process squints, and then can further improve semi-axis 12 and bearing 34 assembly precision.
The using method comprises the following steps: when the assembly operation of the bearings 34 of the half shafts 12 is carried out, firstly, one end of each half shaft 12 is placed above the supporting plate 21 on the inner side of the corresponding buffer groove 19, the supporting plate 21 moves downwards under the action of gravity of the corresponding half shaft 12, the supporting plate 21 drives the piston plate 17 to synchronously move downwards through the push rod 18 in the downward moving process, gas in the air cavity 15 enters the inside of the capsule body 39 through the air duct 14 under the pressure action of the piston plate 17, the capsule body 39 is expanded in volume and then pushes the friction plate 23 to be close to one side of the corresponding half shaft 12, the friction plate 23 is tightly attached to the surface of the corresponding half shaft 12, the annularly distributed friction plate 23 is attached to the surface of the corresponding half shaft 12 to clamp and fix the half shaft 12, the corresponding half shaft 12 is preliminarily clamped and fixed, an operator rotates the spiral sleeve 13 through the spiral transmission connection with the spiral sleeve 13 to move downwards, the clamping head 26 slides along the inner surface of the clamping groove 41 under the extrusion force of the wedge block 24, so that the clamping head 26 is tightly attached to the surface of the corresponding half shaft 12, the driving mechanism drives the displacement plate 8 to move upwards through the air cylinder 4, the balancing weight 29 can tightly move upwards to one side of the half shaft 12, the friction plate 23 is tightly attached to the side of the corresponding half shaft 12, the bearing 34 is tightly attached to the bearing 34 through the impact pad 33, and the outer ring 34 is tightly attached to the bearing 34 through the impact pad 33, and the impact pad 34 is tightly attached to the outer ring 38, and the bearing 38 is tightly attached to the outer ring 38, and the bearing 34 is tightly attached to the bearing 38 through the bearing 38, and the impact pad is attached to the bearing 38.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a tractor chassis semi-axis bearing compression fittings, includes workstation (1), its characterized in that: the automatic lifting device is characterized in that a fixing seat (9) is fixedly connected to the outer surface of the upper end of the workbench (1), a buffer groove (19) is formed in the outer surface of the upper end of the fixing seat (9), half shafts (12) are in sliding fit contact with the inner surface of the buffer groove (19), and a lifting buffer mechanism is arranged on the inner side of the buffer groove (19) and used for limiting the half shafts (12) in a lifting mode;
the automatic clamping device comprises a workbench (1), a connecting seat (3) is fixedly connected to the outer surface of the upper end of the workbench, a connecting plate (10) is fixedly connected to the outer surface of the front end of the connecting seat (3), the connecting plate (10) is in a ring shape, a clamping tube (11) is fixedly connected to the outer surface of the upper end of the connecting plate (10), and a clamping mechanism is arranged on the inner side of the clamping tube (11) and used for clamping and fixing a half shaft (12);
The automatic feeding device is characterized in that an air cylinder (4) is fixedly connected to the outer surface of the upper end of the connecting seat (3), a displacement plate (8) is attached to the upper end of the connecting rod of the air cylinder (4), a supporting plate (2) is fixedly connected to the outer surface of the upper end of the workbench (1), a driving mechanism is arranged on the outer surface of the front end of the supporting plate (2), and the driving mechanism is used for driving a connecting plate (10) to reciprocate up and down.
2. The tractor chassis axle bearing compression device of claim 1, wherein: the lifting buffer mechanism comprises an air cavity (15) formed in the outer surface of the upper end of the workbench (1), a piston plate (17) is slidably connected to the inner surface of the air cavity (15), a push rod (18) is fixedly connected to the outer surface of the upper end of the piston plate (17), the upper end of the push rod (18) penetrates through the inner side of a buffer groove (19) and is fixedly connected with a supporting plate (21), the outer surface of the upper end of the supporting plate (21) is in fit contact with the lower end of the half shaft (12), the push rod (18) is in sliding fit contact with the fixing seat (9), a spring (16) is fixedly connected to the outer surface of the lower end of the piston plate (17), a clamping groove (20) is formed in the lower end of the inner surface of the buffer groove (19), and the clamping groove (20) is located right below the supporting plate (21).
3. The tractor chassis axle bearing compression device of claim 2, wherein: the utility model discloses a gas guide device is characterized in that a storage groove (22) is formed in the inner side of a fixed seat (9), a bag body (39) is fixedly connected to one side, far away from a half shaft (12), of the inner surface of the storage groove (22), the number of the bag bodies (39) is a plurality of groups and distributed in an annular array, the outer surface of the bag body (39) is close to one side, close to the half shaft (12), of the half shaft (23) and fixedly connected with a friction plate (23), the friction plate (23) is of an arc-shaped structure, one side, far away from the friction plate (23), of the outer surface of the bag body (39) is fixedly connected with a gas guide tube (14), and the lower end of the gas guide tube (14) penetrates into the inner side of a workbench (1) and is communicated with the inner part of a gas cavity (15).
4. A tractor chassis axle bearing compression device as defined by claim 3 wherein: the clamping mechanism comprises limiting grooves (25) formed in the outer surface of the upper end of a clamping tube (11), the limiting grooves (25) are annular, a spiral sleeve (13) is arranged on the inner side of each limiting groove (25), the spiral sleeve (13) is connected with the clamping tube (11) in a spiral transmission mode through threads formed in the outer surface of the spiral sleeve, clamping grooves (41) are formed in the outer surface of the upper end of the clamping tube (11), the number of the clamping grooves (41) is three, the clamping grooves are distributed in an annular array mode, and one end, away from a half shaft (12), of each clamping groove (41) is communicated with the inside of each limiting groove (25).
5. The tractor chassis axle bearing compression device of claim 4, wherein: the utility model discloses a clamping groove, including clamping groove (41), wedge (24) are connected with to clamping groove (41) internal surface sliding connection, spiral shell cover (13) are connected with wedge (24) screw drive through the screw thread of its internal surface, wedge (24) cross-section is trapezium structure, clamping groove (41) internal surface lower extreme sliding connection has chuck (26), wedge (24) surface and chuck (26) sliding fit contact, anti-skidding groove (27) have been seted up to chuck (26) surface near semi-axis (12) one side, the quantity of anti-skidding groove (27) is a plurality of groups and is linear array distribution.
6. The tractor chassis axle bearing compression device of claim 5, wherein: the driving mechanism comprises a displacement groove (6) formed in the outer surface of the front end of the supporting plate (2), sliding rods (7) are fixedly connected to the upper end and the lower end of the inner surface of the displacement groove (6), the sliding rods (7) penetrate through the upper end and the lower end of the displacement plate (8) and are in sliding fit contact with the displacement plate (8), the displacement plate (8) is in sliding fit contact with the inner surface of the displacement groove (6), and air pipe connectors (5) are respectively fixedly connected to the upper end and the lower end of the outer surface of the right end of the air cylinder (4).
7. The tractor chassis axle bearing compression device of claim 6, wherein: the front side of the displacement plate (8) is provided with an assembly mechanism, the assembly mechanism is used for respectively assembling bearings (34) at shaft heads of the half shafts (12), the assembly mechanism comprises a balancing weight (29) fixedly connected with the outer surface of the front end of the displacement plate (8), the balancing weight (29) is in a circular ring shape, scale marks (30) are arranged on the outer surface of the front end of the support plate (2), and the scale marks (30) are distributed in parallel with the displacement grooves (6).
8. The tractor chassis axle bearing compression device of claim 7, wherein: the utility model discloses a semi-axis (12) upper end laminating contact has guide bar (28), guide bar (28) surface middle part has seted up guide slot (31), guide slot (31) internal surface slip laminating contact has stopper (32), both ends run through to guide slot (31) outside and with balancing weight (29) fixed connection about stopper (32), guide bar (28) surface sliding connection has assembly pipe (33).
9. The tractor chassis axle bearing compression device of claim 8, wherein: the outer surface of the upper end of the assembly pipe (33) is in fit contact with the lower end of the balancing weight (29), the lower end of the assembly pipe (33) is fixedly connected with a gasket (35), the gasket (35) is in a ring shape, the lower end of the gasket (35) is in fit contact with a bearing (34), the outer surface of the assembly pipe (33) is provided with a clamping mechanism, and the clamping mechanism is used for clamping the bearing (34).
10. The tractor chassis axle bearing compression device of claim 9, wherein: the clamping mechanism comprises notches (40) formed in the outer surface of an assembly pipe (33), the notches (40) are distributed in a plurality of groups and are distributed in an annular array, a mandrel (37) is fixedly connected to the inner side of the notches (40), a buckle (38) is rotatably connected to the outer surface of the mandrel (37), the buckle (38) is of an L-shaped structure, the lower side of the buckle (38) is in clamping contact with the outer surface of the lower end of a bearing (34), a movable sleeve (36) is connected to the upper side of the outer surface of the assembly pipe (33) in a threaded manner, the movable sleeve (36) is in a circular ring shape, the lower end of the movable sleeve (36) is in an arc shape, and the lower side of the outer surface of the movable sleeve (36) is in sliding fit contact with the outer surface of the buckle (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410571264.6A CN118123470B (en) | 2024-05-10 | 2024-05-10 | Pressing device for half shaft bearing of chassis of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410571264.6A CN118123470B (en) | 2024-05-10 | 2024-05-10 | Pressing device for half shaft bearing of chassis of tractor |
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| Publication Number | Publication Date |
|---|---|
| CN118123470A true CN118123470A (en) | 2024-06-04 |
| CN118123470B CN118123470B (en) | 2024-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410571264.6A Active CN118123470B (en) | 2024-05-10 | 2024-05-10 | Pressing device for half shaft bearing of chassis of tractor |
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| CN (1) | CN118123470B (en) |
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| KR100889664B1 (en) * | 2007-11-06 | 2009-03-19 | 위아 주식회사 | Press fitting device for bearing |
| KR20130119736A (en) * | 2012-04-24 | 2013-11-01 | 이병환 | Automatically ball assembled device for linear bearings |
| CN206779852U (en) * | 2017-06-16 | 2017-12-22 | 内蒙古机电职业技术学院 | A kind of semiaxis part bearing press mounting frock |
| CN207205767U (en) * | 2017-08-08 | 2018-04-10 | 浙江卡卡自动化设备有限公司 | A kind of bearing stamping device of stability |
| CN207629543U (en) * | 2017-11-22 | 2018-07-20 | 杭州杭联汽车连杆有限公司 | A kind of automobile connecting bar liner decompressor |
| CN212886092U (en) * | 2020-08-03 | 2021-04-06 | 青岛晟润泰电气制造有限公司 | Rotor bearing mechanism of impressing |
| CN115781255A (en) * | 2023-02-02 | 2023-03-14 | 昆明旅游索道开发有限责任公司 | Dismounting device for supporting cable wheel lining |
-
2024
- 2024-05-10 CN CN202410571264.6A patent/CN118123470B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100889664B1 (en) * | 2007-11-06 | 2009-03-19 | 위아 주식회사 | Press fitting device for bearing |
| KR20130119736A (en) * | 2012-04-24 | 2013-11-01 | 이병환 | Automatically ball assembled device for linear bearings |
| CN206779852U (en) * | 2017-06-16 | 2017-12-22 | 内蒙古机电职业技术学院 | A kind of semiaxis part bearing press mounting frock |
| CN207205767U (en) * | 2017-08-08 | 2018-04-10 | 浙江卡卡自动化设备有限公司 | A kind of bearing stamping device of stability |
| CN207629543U (en) * | 2017-11-22 | 2018-07-20 | 杭州杭联汽车连杆有限公司 | A kind of automobile connecting bar liner decompressor |
| CN212886092U (en) * | 2020-08-03 | 2021-04-06 | 青岛晟润泰电气制造有限公司 | Rotor bearing mechanism of impressing |
| CN115781255A (en) * | 2023-02-02 | 2023-03-14 | 昆明旅游索道开发有限责任公司 | Dismounting device for supporting cable wheel lining |
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| Publication number | Publication date |
|---|---|
| CN118123470B (en) | 2024-07-12 |
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