Looseness-preventing clamp for overhauling truck bearing assembly
By designing an anti-loosening fixture for bearing maintenance and using a structure that can expand the tightening legs and the fixed legs, the problem that the internal components of the bearing are easy to fall off during the maintenance process is solved, and the press-fitting quality of the sealing cover is improved. .
Patent Information
- Application Number
- CN202420259546.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-02-02
AI Technical Summary
During the bearing maintenance process, after three points of oil injection, the grease in each part of the bearing inner ring is uniform and thin, resulting in poor fit between the inner ring and the outer ring, which can easily cause the internal components of the bearing to fall off and affect the pressing quality of the seal cover.
An anti-loosening fixture for maintenance truck bearing assembly is designed, which includes an expandable tightening leg and a fixed leg. Through the design of the handle and the cooperation of the spring, the inner ring of the bearing can be stably tightened to prevent loosening.
It effectively avoids the problem of internal components of the bearing falling off during maintenance, improves the press-fitting qualification rate of the bearing seal cover, and reduces the frequency of manual assembly by the operator.
Smart Images
Figure CN222371468U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of truck bearing repair, and in particular relates to an anti-loosening clamp for assembling truck bearing repair. Background Art
[0002] In the bearing maintenance work procedure, the grease forms an oil film between the bearing spacer ring and the bearing inner ring to fix the bearing and facilitate assembly. Since the new factory maintenance procedures require the bearing to be filled with oil at three points to achieve the effect of uniform lubrication of the grease inside the bearing, this causes the grease in various parts of the bearing inner ring to be evenly thin and the viscosity to be reduced, and it cannot ensure that the inner and outer rings of the bearing fit well. Therefore, after the bearing is filled with grease and before entering the sealing cover pressing process, as the assembly line runs, the internal components of the bearing will fall off. The operator needs to manually assemble the internal components of the bearing repeatedly, which can easily lead to the failure of the bearing sealing cover to be pressed or the press-fitting is unqualified. It can only be completed based on work experience, and the one-time pass rate is less than 60%. Utility Model Content
[0003] The utility model aims to provide a loose prevention clamp for truck bearing assembly for inspection and repair, improve the reasonableness rate of bearing sealing cover press-fitting, and solve the problem that the bearing, the middle spacer ring and other components are easily loosened and fall off during the operator's bearing assembly work, resulting in unqualified bearing sealing cover press-fitting work.
[0004] The cam is secured to the bottom of the truck by a spring which is secured to the bottom of the truck and has a spring which is secured to the bottom of the truck when the cam is in a locked state.
[0005] As a preferred embodiment of the above scheme, the bottom ends of the outwardly expandable and tightening legs and the fixed legs are provided with outward-turned lower hooks that hook the lower end of the bearing inner ring outward and upward, which is convenient for installation and fixation on the bearing, and the structural design is reasonable.
[0006] Further preferably, both ends of the upper grip rod are provided with outward-turned upper hooks that hook the upper end of the inner ring of the bearing outward and downward, so as to facilitate installation and fixation on the bearing, and the structural design is reasonable.
[0007] Further preferably, the lower cross bar is provided with a through hole for the vertical spring column to vertically pass through, and the spring diameter is larger than the through hole diameter, thereby restricting the spring between the upper grip bar and the lower cross bar, and when the upper grip bar is pressed downward, only the vertical spring column is allowed to pass through the through hole.
[0008] Further preferably, the handle, the outwardly expandable and tightenable legs and the fixed legs are all made of 8X5mm 304 stainless steel cutting strips, and the material selection is reasonable.
[0009] Beneficial effects of the utility model:
[0010] (1) Considering the problem that the three-point oiling currently used causes the bearing and the middle spacer ring to become loose and fall off during the bearing assembly work, the anti-loosening device of this solution is placed inside the bearing, pressing the inner ring of the bearing up and down to ensure its stability, thereby avoiding the problem that the operator needs to manually assemble the internal components of the bearing repeatedly during maintenance, resulting in the bearing seal cover being unable to be pressed or being pressed unqualified. The solution has high practical value and novel conception.
[0011] (2) A downwardly extending pressing support rod is provided at the left end of the upper grip rod, and the outwardly expandable and tightening support leg can be rotatably installed at the left end of the lower cross bar. When the hand holds the handle tightly, the pressing support rod presses the top of the outwardly expandable and tightening support leg to tighten inward along the rotation axis, thereby facilitating the insertion of the inner ring of the bearing. Then, after releasing the hand, the support rod can press against the inner ring of the bearing, thereby ensuring that the internal components of the bearing are fixed in position, preventing the components from loosening, and the structure is interlocking.
[0012] In summary, it has the advantages of high practical value, novel conception, fixed position of internal components of the bearing, and avoidance of loose parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0014] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:
[0015] like Figure 1 As shown, a truck bearing assembly anti-loosening clamp for repairing truck bearings is composed of a handle 1 from top to bottom, an outwardly expandable and tightening leg 2 that can rotate downward along the left end of the handle 1, and a fixed leg 3 that extends downward along the right end of the handle 1.
[0016] The handle 1 is composed of an upper grip bar 11 and a lower cross bar 12 .
[0017] The upper grip bar 11 is in an arc-shaped structure with high ends and a low middle.
[0018] The right end of the upper grip bar 11 is provided with a fixed support rod connected to the lower cross bar 12 .
[0019] A vertical spring column 112 passing through the lower cross bar 12 is installed at the right part of the upper grip bar 11 near the fixed support rod. The vertical spring column 112 is sleeved with a spring 113 located between the upper grip bar 11 and the lower cross bar 12 .
[0020] A pressing support rod 111 extending downward is provided at the left end of the upper grip rod 11 .
[0021] Both ends of the upper grip rod 11 are provided with outwardly turned upper hooks 114 for hooking the upper end of the inner ring of the bearing outwardly and downwardly.
[0022] The lower cross bar 12 is provided with a through hole for the vertical spring column 112 to vertically pass through.
[0023] The diameter of the spring 113 is larger than the diameter of the via hole.
[0024] The handle 1, the outwardly expandable and tightenable legs 2 and the fixed legs 3 are all made of 8X5mm 304 stainless steel cutting strips.
[0025] The outwardly expandable and tightenable supporting leg 2 can be rotatably mounted on the left end of the lower cross bar 12 .
[0026] The bottom ends of the outwardly expandable and tightening legs 2 and the fixed legs 3 are both provided with outwardly turned lower hooks 4 which hook the lower end of the inner ring of the bearing outwardly and upwardly.
[0027] When the handle 1 is gripped by hand, the support rod 111 is pressed to expand outwards and tighten the top end of the support leg 2 inwards along the rotation axis, thereby facilitating insertion into the inner ring of the bearing.
[0028] After the operator has assembled the bearing assembly during work, he / she adds grease using the three-point oiling method and then proceeds to the next process. Before pressing the sealing cover, the operator pinches the handle 1 of the anti-loosening clamp to allow the outwardly expandable tightening leg 2 to be retracted in a tightened state and then put it into the center hole of the bearing. After loosening the handle 1, adjust the position so that the outward-turned upper hook 114 and the outward-turned lower hook 4 are stuck on the end of the inner ring of the bearing, which serves to fix the internal components. Then rotate the bearing, place the bearing on the grease injection machine and start pressing the sealing cover. After completion, remove the anti-loosening clamp from the center of the bearing, and transfer the bearing to the grease equalization process. The entire operation process is completed.
Claims
1. A bearing assembly anti-loosening fixture for overhauling trucks, characterized by: The invention comprises a handle (1) extending from top to bottom, a support leg (2) which can be expanded and tightened and which can be rotated downward along the left end of the handle (1), and a fixed support leg (3) which extends downward along the right end of the handle (1). The handle (1) comprises an upper grip rod (11) and a lower cross rod (12). The upper grip rod (11) is in an arc-shaped structure with high ends and low middle. The right end of the upper grip rod (11) is provided with a fixed support rod connected to the lower cross rod (12). A support rod passing through the lower cross rod (12) is installed on the right part of the upper grip rod (11) near the fixed support rod. The vertical spring column (112) is provided with a spring (113) between the upper grip bar (11) and the lower cross bar (12). The left end of the upper grip bar (11) is provided with a pressing support rod (111) extending downward. The outwardly expandable and tightening support leg (2) is rotatably mounted on the left end of the lower cross bar (12). When the handle (1) is gripped by hand, the pressing support rod (111) presses the top end of the outwardly expandable and tightening support leg (2) to tighten inward along the rotation axis, thereby facilitating the placement of the support leg into the inner ring of the bearing.
2. The anti-loosening fixture for assembling bearings for overhauling trucks according to claim 1 is characterized by: The bottom ends of the outwardly expandable and tightening legs (2) and the fixed legs (3) are both provided with outwardly turned lower hooks (4) that hook the lower end of the inner ring of the bearing outwardly and upwardly.
3. The anti-loosening fixture for assembling bearings for overhauling trucks according to claim 1 is characterized by: Both ends of the upper grip rod (11) are provided with outwardly turned upper hooks (114) for hooking the upper end of the inner ring of the bearing outwardly and downwardly.
4. The anti-loosening fixture for assembling bearings for overhauling trucks according to claim 1 is characterized by: The lower cross bar (12) is provided with a through hole for the vertical spring column (112) to vertically pass through, and the diameter of the spring (113) is larger than the diameter of the through hole.
5. The anti-loosening fixture for assembling bearings for overhauling trucks according to claim 1 is characterized by: The handle (1), the outwardly expandable and tightenable supporting leg (2) and the fixed supporting leg (3) are all made of 8X5mm 304 stainless steel cutting strips.