CN114905271B - Roller assembly mounting method - Google Patents
Roller assembly mounting method Download PDFInfo
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- CN114905271B CN114905271B CN202110178850.0A CN202110178850A CN114905271B CN 114905271 B CN114905271 B CN 114905271B CN 202110178850 A CN202110178850 A CN 202110178850A CN 114905271 B CN114905271 B CN 114905271B
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- sliding sleeve
- positioning pin
- riveting
- hole
- roller assembly
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000002788 crimping Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The utility model discloses an installation method of a roller assembly, which comprises the following steps: the sliding sleeve is sleeved outside the positioning pin, wherein a through hole penetrating along the axis direction of the sliding sleeve is formed in the sliding sleeve, and the positioning pin is provided with an annular clamping groove; and applying an acting force from the end face of the sliding sleeve, which is away from the positioning pin, or applying an acting force from the end face of the positioning pin, so that the deformation part of the sliding sleeve flows radially to be clamped into the annular clamping groove, and the positioning pin can rotate relative to the sliding sleeve. The roller assembly is in the same outer diameter, only the sliding sleeve is sleeved outside the positioning pin, the inner wall of the sliding sleeve is in clearance fit with the positioning pin, and the deformation part is clamped in the annular clamping groove by applying acting force, so that the sliding sleeve rotates relative to the positioning pin, the assembly is simple, the operation of workers is convenient, and the production cost is reduced.
Description
Technical Field
The utility model relates to the technical field of machine manufacturing, in particular to a method for installing a roller assembly.
Background
The roller assembly is generally assembled by a plurality of sub-components, can provide larger side load and pushing force in the rolling process, and can be used for household appliances, cabinets or cabinets and the like. Patent application number CN201821928166.X discloses a self-fastening roller assembly, including locating pin, rolling sleeve and connecting seat, establishes the rolling sleeve cover in the locating pin outside earlier, inserts the first riveting portion of locating pin in the first riveting hole of connecting seat again, uses the squeeze riveting instrument with the first riveting portion of locating pin accomplish the riveting with the first riveting hole of connecting seat, and the rolling sleeve is limited in between locating pin and the connecting seat and can rotate around the locating pin after the connection, and single subassembly is accomplished and is assembled. The self-fastening roller assembly has the following disadvantages: three sub-parts are required to be assembled, so that the requirement on assembly precision is high, the manufacturing requirement is also high, and the production and assembly efficiency is reduced; and the wall thickness of the roller is uneven, so that deformation and use failure are easy to occur, and the use cost is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the utility model provides a method for installing a roller assembly, which is used for solving the problems of complex installation, low efficiency and easy deformation of the roller assembly.
The embodiment of the application discloses roller assembly's installation method, this roller assembly is under the same external diameter size, only needs to establish the slip sleeve cover in the outside of locating pin to through flat die riveting's mode right slip sleeve applys effort, make slip sleeve's inner wall forms deformation portion, with the card income in the annular draw-in groove of locating pin, can realize roller assembly's installation, simple structure only needs two sub-pieces just can realize the function of gyro wheel, and the equipment is convenient, does not need complicated mechanism, and workman's efficiency of assembling is higher, and slip sleeve wall thickness is even, non-deformable in the use, has reduced use cost.
The installation method of the roller assembly comprises the following steps:
the sliding sleeve is sleeved outside the positioning pin, wherein a through hole penetrating along the axis direction of the sliding sleeve is formed in the sliding sleeve, and the positioning pin is provided with an annular clamping groove;
and applying an acting force from the end face of the sliding sleeve, which is away from the positioning pin, or applying an acting force from the end face of the positioning pin, so that the deformation part of the sliding sleeve flows radially to be clamped into the annular clamping groove, and the positioning pin can rotate relative to the sliding sleeve.
Further, the deformation portion is formed on an inner wall of the through hole of the sliding sleeve, and the deformation portion extends radially inward.
Further, the radial width of the deformation part is smaller than the radial width of the annular clamping groove, and the axial height of the deformation part is smaller than the axial height of the annular clamping groove.
Further, the positioning pin comprises a first riveting part and a second riveting part which are arranged at intervals along the axial direction, and an annular clamping groove is formed between the first riveting part and the second riveting part along the radial direction.
Further, the outer diameter of the first caulking portion is smaller than the outer diameter of the second caulking portion.
Further, the upper surface of the sliding sleeve is flush with the upper surface of the first riveting part, and the bottom of the sliding sleeve is in contact with the upper surface of the second riveting part.
Further, the outer diameter of the first caulking portion is larger than the outer diameter of the second caulking portion.
Further, a first gap is arranged between the first riveting part and the inner wall of the through hole, and the first gap is smaller than the width of the deformation part along the radial direction.
Further, a second gap is arranged between the second riveting part and the inner wall of the through hole, and the second gap is smaller than the width of the deformation part along the radial direction.
The beneficial effects of the utility model are as follows:
1. this roller assembly is through flat die riveting's mode is right sliding sleeve or locating pin applys effort, makes sliding sleeve's inner wall forms deformation portion, with the card is gone into in the annular draw-in groove of locating pin, can realize roller assembly's installation, simple structure only need two sub-pieces just can realize the function of gyro wheel, and the equipment is convenient, does not need complicated mechanism, and workman's efficiency of assembly is higher, and sliding sleeve wall thickness is even, non-deformable in the use, has reduced use cost.
2. Before riveting, the roller assembly only needs to be sleeved outside the locating pin by the sliding sleeve, the inner wall of the sliding sleeve is in clearance fit with the locating pin, the deformation part is arranged opposite to the locating groove, the sliding sleeve can rotate relative to the locating pin, the assembly is simple, the operation of workers is convenient, and compared with the roller assembly assembled by the three existing sub-components, the roller assembly is smoother in sliding, and the production cost is reduced.
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of the roller assembly prior to crimping in accordance with an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of embodiment 1 of the roller assembly according to the present utility model after riveting;
FIG. 3 is a schematic cross-sectional view of an embodiment of the roller assembly of embodiment 2 prior to crimping;
FIG. 4 is a schematic cross-sectional view of embodiment 2 of the roller assembly according to the present utility model after riveting;
FIG. 5 is a schematic cross-sectional view of an embodiment of the roller assembly of embodiment 3 prior to crimping in accordance with an embodiment of the present utility model;
FIG. 6 is a schematic cross-sectional view of embodiment 3 of the roller assembly according to the present utility model after riveting;
FIG. 7 is a schematic cross-sectional view of an embodiment of the utility model prior to crimping of embodiment 4 of the roller assembly;
FIG. 8 is a schematic cross-sectional view of embodiment 4 of the roller assembly according to the present utility model after riveting;
FIG. 9 is a schematic cross-sectional view of an embodiment of the roller assembly of the present utility model prior to crimping of embodiment 5;
fig. 10 is a schematic cross-sectional view of the roller assembly of example 5 according to an embodiment of the present utility model after riveting.
Reference numerals of the above drawings: 1. a sliding sleeve; 2. a positioning pin; 3. a first through hole; 4. a deformation section; 5. a first caulking portion; 6. a second caulking portion; 7. an annular clamping groove; 8. a first body portion; 9. a second body portion; 10. a second through hole; 11. a columnar portion; 12. a boss.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
According to the installation method of the roller assembly, the roller assembly is installed by sleeving the sliding sleeve on the outer portion of the locating pin and applying acting force to the sliding sleeve in a flat die riveting mode under the condition of the same outer diameter, so that the deformation portion is formed on the inner wall of the sliding sleeve and clamped into the annular clamping groove of the locating pin, the roller assembly can be installed, the roller assembly is simple in structure, the function of the roller can be achieved by only two sub-components, the roller assembly is convenient to assemble, a complex mechanism is not needed, the efficiency of workers in assembly is higher, the wall thickness of the sliding sleeve is uniform, deformation is not easy in the use process, and the use cost is reduced.
The installation method of the roller assembly comprises the following steps:
the sliding sleeve 1 is sleeved outside the positioning pin 2, wherein a through hole penetrating along the axis direction of the sliding sleeve 1 is formed inside the sliding sleeve 1, and the positioning pin 2 is provided with an annular clamping groove 7;
an acting force is applied from the end face of the sliding sleeve 1, which faces away from the positioning pin 2, or an acting force is applied from the end face of the positioning pin 2, so that the deformation part 4 of the sliding sleeve 1 flows radially to be clamped into the annular clamping groove 7, and the positioning pin 2 can rotate relative to the sliding sleeve 1.
With reference to fig. 1 to 10, in the above-mentioned scheme, the worker sleeves the sliding sleeve 1 outside the positioning pin 2 from the upper portion of the positioning pin 2, so that the first rivet portion 5 of the positioning pin 2 is located in the first through hole 3 of the sliding sleeve 1, or sleeves the sliding sleeve 1 outside the positioning pin 2 and makes the columnar portion 11 of the sliding sleeve 1 pass through the second through hole 10 of the positioning pin 2. A certain gap exists between the inner wall of the first through hole 3 of the sliding sleeve 1 and the first riveting part 5 or the second riveting part 6, so that the sliding sleeve 1 can rotate relative to the positioning pin 2. After the positions of the sliding sleeve 1 and the positioning pin 2 are determined, an acting force is applied from the end face of the sliding sleeve 1 or the positioning pin 2 (namely, the upper surface of the sliding sleeve 1 or the positioning pin 2), so that the inner wall of the sliding sleeve 1 forms a deformation part 4 extending inwards along the radial direction to be clamped into an annular clamping groove 7 of the positioning pin 2, and the sliding sleeve 1 and the positioning pin 2 are connected together, so that the sliding sleeve 1 can rotate relative to the positioning pin 2, and the installation of the roller assembly is completed.
Specifically, in embodiment 1, the roller assembly includes: a sliding sleeve 1 and a locating pin 2.
As shown in fig. 1, the pre-clinching state: the sliding sleeve 1 may have a cylindrical shape. The sliding sleeve 1 has a first through hole 3 formed therein and penetrating in the axial direction. The sliding sleeve 1 has a deformation portion 4 that can extend radially inward on an inner wall forming the first through hole 3. The deformation part 4 is positioned at the bottom of the inner wall of the sliding sleeve 1. The positioning pin 2 includes a first caulking portion 5, and a second caulking portion 6 provided at a distance from the first caulking portion 5 in the axial direction of the first caulking portion 5. The positioning pin 2 has an annular clamping groove 7. The annular clamping groove 7 is located between the first riveting part 5 and the second riveting part 6. The sliding sleeve 1 can slide relative to the positioning pin 2 before the positioning pin 2 and the sliding sleeve 1 are riveted, and the deformation part 4 can be arranged opposite to the positioning groove. The first riveting part 5 is located in the first through hole 3, so that the sliding sleeve 1 can abut against the sliding sleeve 1 from the bottom in the rotating process of the first riveting part 5, and the sliding sleeve 1 and the positioning pin 2 are prevented from falling off.
As shown in fig. 2, the post-staking condition: the sliding sleeve 1 may have a cylindrical shape. The sliding sleeve 1 has a first through hole 3 formed therein and penetrating in the axial direction. The first through hole 3 is cylindrical. The sliding sleeve 1 has a deformed portion 4 extending radially inward on an inner wall forming the first through hole 3. The deformation part 4 is a raised circular ring. The sliding sleeve 1 further comprises a first body portion 8 connected to the deformation portion 4. The first body portion 8 is in clearance fit with the locating pin 2. The positioning pin 2 is arranged in the first through hole 3 in a penetrating way. The positioning pin 2 includes a first caulking portion 5 and a second caulking portion 6 provided at intervals in the axial direction. A first gap is provided between the first caulking portion 5 and the inner wall of the first through hole 3. The first gap is smaller than the width of the deformation part 4 along the radial direction, so that the deformation part 4 can be embedded into the annular clamping groove 7, the positioning pin 2 is prevented from falling off from the sliding sleeve 1, and the roller assembly can rotate stably. The end face of the first caulking portion 5 is flush with the end face of the sliding sleeve 1. The end face is the upper surface of the first caulking portion 5 or the sliding sleeve 1. The end surface of the second caulking portion 6 is in contact with the bottom of the sliding sleeve 1. The first caulking portion 5 and the second caulking portion 6 may each have a cylindrical shape. The outer diameter of the first caulking portion 5 is smaller than the outer diameter of the second caulking portion 6. An annular clamping groove 7 is formed between the first riveting part 5 and the second riveting part 6 along the radial direction. The end face of the second riveting part 6 is contacted with the bottom of the sliding sleeve 1, so that the roller assembly is mounted, and the roller assembly is convenient to mount without other assistance. The force is applied from the end face of the sliding sleeve 1, which is away from the positioning pin 2, and the deformation part 4 of the sliding sleeve 1 can flow along the radial direction after the riveting of the sliding sleeve 1 and the positioning pin 2 so as to be clamped into the annular clamping groove 7, so that the positioning pin 2 can rotate relative to the sliding sleeve 1. The roller assembly only needs two sub-parts to be assembled, the assembly is convenient, a complex mechanism is not needed, the assembly efficiency of workers is higher, the wall thickness of the sliding sleeve 1 is uniform, the sliding sleeve is not easy to deform in the use process, and the use cost is reduced.
As shown in fig. 3 and 4, in embodiment 2, embodiment 2 is substantially identical to embodiment 1 in structure, except that:
state after riveting: the sliding sleeve 1 has a deformed portion 4 extending radially inward on an inner wall forming the first through hole 3. The deformation part 4 is rectangular. The positioning pin 2 is arranged in the first through hole 3 in a penetrating way. The positioning pin 2 includes a first caulking portion 5 and a second caulking portion 6 provided at intervals in the axial direction. The outer diameter of the first caulking portion 5 is smaller than the outer diameter of the second caulking portion 6. An annular clamping groove 7 is formed between the first riveting part 5 and the second riveting part 6 along the radial direction. The force is applied from the end face of the sliding sleeve 1, which is away from the positioning pin 2, and the deformation part 4 of the sliding sleeve 1 can flow along the radial direction after the riveting of the sliding sleeve 1 and the positioning pin 2 so as to be clamped into the annular clamping groove 7, so that the sliding sleeve 1 can rotate relative to the positioning pin 2. The roller assembly only needs two sub-parts to be assembled, the assembly is convenient, a complex mechanism is not needed, the assembly efficiency of workers is higher, the wall thickness of the sliding sleeve 1 is uniform, the sliding sleeve is not easy to deform in the use process, and the use cost is reduced.
In example 3, example 3 is substantially the same as example 1 in the following points:
as shown in fig. 5, the pre-clinching state: the sliding sleeve 1 comprises a first body portion 8 arranged in a radial direction, and a second body portion 9 fixed to an outer end of the first body portion 8 in a vertical direction. The bottom end of the inner wall of the second body portion 9 has a deformation portion 4 that can extend radially inward. The sliding sleeve 1 can slide relative to the positioning pin 2 before the positioning pin 2 and the sliding sleeve 1 are riveted, and the deformation part 4 and the annular clamping groove 7 can be arranged oppositely.
As shown in fig. 6, the post-staking condition: the sliding sleeve 1 comprises a first body portion 8 arranged in a radial direction, and a second body portion 9 fixed to an outer end of the first body portion 8 in a vertical direction. The sliding sleeve 1 has a deformed portion 4 extending radially inward on an inner wall forming the first through hole 3. The deformation part 4 is positioned at the bottom end of the sliding sleeve 1. The cross section of the deformation portion 4 may be rectangular parallelepiped. The slide bush 1 the positioning pin 2 includes a first caulking portion 5 and a second caulking portion 6 provided at intervals in the axial direction. The outer diameter of the first caulking portion 5 is larger than the outer diameter of the second caulking portion 6. The end face of the first body 8 is flush with the end face of the locating pin 2. The deformation part 4 is arranged opposite to the annular clamping groove 7, the deformation part 4 is deformed by force on the end face of the sliding sleeve 1 to form a curled edge, so that the deformed edge is clamped in the annular clamping groove 7, the sliding sleeve 1 is prevented from falling off from the positioning pin 2, and the sliding sleeve 1 can rotate relative to the positioning pin 2. The roller assembly is simple to assemble, is convenient for workers to operate, greatly improves working efficiency, and is smoother in sliding and reduces production cost compared with the roller assembly assembled by the three existing sub-components.
In example 4, example 4 is substantially the same as example 1 in the following points:
as shown in fig. 7, the pre-clinching state: the sliding sleeve 1 comprises a first body part 8 arranged along the radial direction and a second body part 9 respectively fixed at two ends of the first body part 8 along the vertical direction. The bottom of the first body 8 is formed with a columnar portion 11 provided in the axial direction. The bottom end of the inner wall of the second body portion 9 has a deformation portion 4 deformable in the radial direction. The positioning pin 2 has a second through hole 10 formed therein and penetrating in the axial direction. The columnar portion 11 is inserted into the second through hole 10. The sliding sleeve 1 can slide relative to the positioning pin 2 before the positioning pin 2 and the sliding sleeve 1 are riveted, and the deformation part 4 and the annular clamping groove 7 can be arranged oppositely.
As shown in fig. 8, the post-staking state: the sliding sleeve 1 comprises a first body part 8 arranged along the radial direction and a second body part 9 respectively fixed at two ends of the first body part 8 along the vertical direction. The bottom of the first body 8 is formed with a columnar portion 11 provided in the axial direction. The columnar portion 11 is fixedly connected with the upper inner wall of the sliding sleeve 1. The positioning pin 2 has a second through hole 10 formed therein and penetrating in the axial direction. The columnar portion 11 is inserted into the second through hole 10. The outer diameter of the columnar portion 11 is smaller than the inner diameter of the second through hole 10 so that the second through hole 10 can rotate relative to the columnar portion 11. The positioning pin 2 further includes a first caulking portion 5 and a second caulking portion 6 provided at intervals in the axial direction. The outer diameter of the first caulking portion 5 is larger than the outer diameter of the second caulking portion 6. The bottom of the inner wall of the sliding sleeve 1 is provided with a deformation part 4. The force is applied from the end face of the sliding sleeve 1, which is away from the positioning pin 2, and the deformation part 4 can deform along the radial direction to be clamped in the annular clamping groove 7 when the end face of the sliding sleeve 1 is stressed, so that the sliding sleeve 1 and the positioning pin 2 are prevented from falling off, and two rotating surfaces exist between the sliding sleeve 1 and the positioning pin 2. The roller assembly is simple to assemble, is convenient for workers to operate, greatly improves working efficiency, and is smoother in sliding and reduces production cost compared with the roller assembly assembled by the three existing sub-components.
In example 5, example 4 was substantially identical to example 1 in structure, except that:
as shown in fig. 9, the pre-clinching state: the sliding sleeve 1 is formed inside with a first through hole 3 provided in the axial direction. A boss 12 is provided on one side of the end face of the sliding sleeve 1. The other side of the end face of the sliding sleeve 1 is provided with a deformation part 4. The inner wall of the deformation part 4 is parallel to the inner wall of the bulge part 12. The locating pin 2 is sleeved in the first through hole 3 of the sliding sleeve 1. The sliding sleeve 1 can slide relative to the positioning pin 2 before the positioning pin 2 and the sliding sleeve 1 are riveted, and the deformation part 4 and the annular clamping groove 7 can be arranged oppositely.
As shown in fig. 10, the post-staking state: the sliding sleeve 1 is formed inside with a first through hole 3 provided in the axial direction. A boss 12 is provided on one side of the end face of the sliding sleeve 1. The other side of the end face of the sliding sleeve 1 is provided with a deformation part 4. The positioning pin 2 includes a first caulking portion 5 and a second caulking portion 6 provided at intervals in the axial direction. A second gap is provided between the second caulking portion 6 and the inner wall of the first through hole 3. The second gap is smaller than the width of the deformation part 4 along the radial direction, so that the deformation part 4 can be embedded into the annular clamping groove 7, the positioning pin 2 is prevented from falling off from the sliding sleeve 1, and the roller assembly can rotate stably. The outer diameter of the first caulking portion 5 is larger than the outer diameter of the second caulking portion 6. The end surface of the deformation portion 4 is in contact with the bottom surface of the first caulking portion 5. The deformation part 4 is bent in a direction close to the axis in the radial direction under the action of the force to be clamped in the annular clamping groove 7 of the positioning pin 2, so that the sliding sleeve 1 and the positioning pin 2 are prevented from falling off, and the sliding sleeve 1 can rotate relative to the positioning pin 2. The roller assembly is simple to assemble, is convenient for workers to operate, greatly improves working efficiency, and is smoother in sliding and reduces production cost compared with the roller assembly assembled by the three existing sub-components.
Specifically, in this embodiment, the width of the deformation portion 4 along the radial direction is smaller than the width of the annular clamping groove 7 along the radial direction. The height of the deformation part 4 along the axial direction is smaller than that of the annular clamping groove 7 along the axial direction, so that a certain gap exists between the deformation part 4 and the annular clamping groove 7, and the sliding sleeve 1 can rotate relative to the positioning pin 2.
The roller assembly is simple in installation method, the sliding sleeve and the locating pin are connected together in a flat die riveting mode only by applying acting force from the end face of the sliding sleeve or the end face of the locating pin, so that the deformation part of the sliding sleeve deforms to be clamped in the annular clamping groove of the locating pin, the sliding sleeve can rotate relative to the locating pin, the operation of workers is facilitated, the working efficiency is greatly improved, and the production cost is reduced.
The principle and the implementation mode of the utility model are explained by applying specific examples, and the above examples are only used for helping to understand the technical scheme and the core idea of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.
Claims (8)
1. The method for installing the roller assembly is characterized by comprising the following steps of:
the sliding sleeve is sleeved outside the positioning pin, a through hole penetrating along the axis direction of the sliding sleeve is formed in the sliding sleeve, the positioning pin comprises a first riveting part and a second riveting part which are arranged at intervals along the axis direction, an annular clamping groove is formed between the first riveting part and the second riveting part along the radial direction, and the upper surface of the sliding sleeve is flush with the upper surface of the first riveting part;
applying a force from the end face of the sliding sleeve, which is away from the positioning pin, or applying a force from the end face of the positioning pin, so that the deformation part of the sliding sleeve flows radially to be clamped into the annular clamping groove, and the positioning pin can rotate relative to the sliding sleeve;
sleeving the sliding sleeve on the outer part of the positioning pin from the upper part of the positioning pin, so that the first riveting part of the positioning pin is positioned in the first through hole of the sliding sleeve, or sleeving the sliding sleeve on the outer part of the positioning pin, and enabling the columnar part of the sliding sleeve to penetrate through the second through hole of the positioning pin;
the state before riveting is as follows: the sliding sleeve comprises a first body part and a second body part, wherein the first body part is arranged along the radial direction, the second body parts are respectively fixed at two ends of the first body part along the vertical direction, a columnar part is formed at the bottom of the first body part, the bottom end of the inner wall of the second body part is provided with a deformation part capable of deforming along the radial direction, a second through hole penetrating along the axial direction is formed in the positioning pin, the columnar part penetrates through the second through hole, the sliding sleeve can slide relative to the positioning pin before riveting the positioning pin and the sliding sleeve, and the deformation part and the annular clamping groove are arranged oppositely;
the state after riveting is as follows: the sliding sleeve comprises a first body part which is arranged along the radial direction, a second body part which is respectively fixed at two ends of the first body part along the vertical direction, a columnar part which is arranged along the axial direction is formed at the bottom of the first body part, the columnar part is fixedly connected with the upper inner wall of the sliding sleeve, a second through hole which penetrates along the axial direction is formed in the positioning pin, the columnar part penetrates through the second through hole, the outer diameter of the columnar part is smaller than the inner diameter of the second through hole, so that the second through hole can rotate relative to the columnar part, the positioning pin further comprises a first riveting part and a second riveting part which are arranged at intervals along the axial direction, the outer diameter of the first riveting part is larger than the outer diameter of the second riveting part, a deformation part is arranged at the bottom end of the inner wall of the sliding sleeve, the sliding sleeve is deviated from the end face of the positioning pin to apply acting force, and the deformation of the deformation part along the radial direction can occur when the end face of the sliding sleeve is stressed so as to be blocked in the annular clamping groove, and the sliding sleeve is prevented from falling off, and the two positioning pins are enabled to rotate with the positioning pin.
2. The method of installing a roller assembly according to claim 1, wherein the deformation portion is formed on an inner wall of the through hole of the sliding sleeve, the deformation portion extending radially inward.
3. The method according to claim 2, wherein the radial width of the deformation portion is smaller than the radial width of the annular clamping groove, and the axial height of the deformation portion is smaller than the axial height of the annular clamping groove.
4. The method of installing a roller assembly according to claim 1, wherein an outer diameter of the first caulking portion is smaller than an outer diameter of the second caulking portion.
5. The method of installing a roller assembly of claim 4, wherein a bottom of the sliding sleeve is in contact with an upper surface of the second rivet.
6. The method of installing a roller assembly according to claim 1, wherein an outer diameter of the first caulking portion is larger than an outer diameter of the second caulking portion.
7. The method according to claim 1, wherein a first gap is provided between the first caulking portion and an inner wall of the through hole, the first gap being smaller than a width of the deformed portion in a radial direction.
8. The method of installing a roller assembly according to claim 1, wherein a second gap is provided between the second caulking portion and an inner wall of the through hole, the second gap being smaller than a width of the deformation portion in a radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110178850.0A CN114905271B (en) | 2021-02-08 | 2021-02-08 | Roller assembly mounting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110178850.0A CN114905271B (en) | 2021-02-08 | 2021-02-08 | Roller assembly mounting method |
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| CN114905271A CN114905271A (en) | 2022-08-16 |
| CN114905271B true CN114905271B (en) | 2024-03-22 |
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| CN114905271A (en) | 2022-08-16 |
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