Positioning device for repairing truck drive axle

Abstract

The embodiment of the application provides a positioning device for truck drive axle repair, which comprises a first chuck, a second chuck, a connecting rod, a length adjusting sleeve, a locking sleeve, a clamping sleeve, a first connecting sleeve, a second connecting sleeve and a third connecting sleeve. According to the scheme provided by the embodiment of the application, the locking sleeve is first screwed into the second connecting sleeve during repair, then the clamping sleeve is sleeved on the bearing of the half shaft sleeve pipe and the clamping sleeve is screwed into the third connecting sleeve, then the locking sleeve is reversely rotated to abut against the tapered cylinder section in the clamping sleeve to realize clamping of the clamping sleeve and the bearing in the half shaft sleeve pipe; the first chuck is sleeved on the drive axle bearing seat, then the connection between the first chuck and the second chuck is completed by using the connecting rod, the distance between the drive axle and the half shaft sleeve pipe is adjusted by increasing or decreasing the number of the length adjusting sleeves during connection, and finally the ends of the connecting rod are screwed into the locking nuts to realize coaxial fixing, so that the coaxiality during repair is ensured and the repair quality is improved.

Description

Technical Field

[0001] This invention relates to the field of truck drive axle repair technology, and in particular to a positioning device for truck drive axle repair. Background Technology

[0002] While bearing the vehicle load, the truck drive axle can also brake through the braking mechanism installed on it. During use, the truck drive axle may fracture due to strength fatigue. The fracture site is mainly at the connection between the bearing and the bearing housing. After the fracture, the truck drive axle needs to be repaired.

[0003] The traditional repair method involves measuring the cutting position on the bearing housing of the truck drive axle, making a cut at the cutting position, and then welding the axle sleeve (including the integrated structure of the bearing housing and bearing) to the cutting position to complete the repair. However, during the welding process, it is necessary to ensure the coaxiality of the axle sleeve and the truck drive axle. If the axle sleeve and the truck drive axle are not coaxial during the welding process, it will affect the repair quality of the truck drive axle and affect the driving experience of the truck. Summary of the Invention

[0004] To address the aforementioned problems, embodiments of the present invention provide a positioning device for repairing truck drive axles.

[0005] In one aspect, the present invention provides a positioning device for repairing a truck drive axle, comprising a first chuck, a second chuck, a connecting rod, a length adjusting sleeve, a locking sleeve, a clamping sleeve, a first connecting sleeve, a second connecting sleeve, and a third connecting sleeve, wherein...

[0006] A first chuck has a first through hole in its center, through which it is fitted onto the bearing seat of the truck drive axle. Multiple first fixing holes are spaced at intervals around the center of the first through hole on the first chuck. A second chuck has a second through hole and a second fixing hole at corresponding positions to the first through hole and the first fixing hole on the first chuck. One end of a first connecting sleeve is located within the second through hole. The second and third connecting sleeves are stepped cylindrical, with the second connecting sleeve fitted inside the first connecting sleeve and the third connecting sleeve fitted inside the second connecting sleeve. The thinner sections of the second and third connecting sleeves are close to the second chuck. A locking sleeve includes a straight section and force-applying rods spaced at intervals on the outer wall of the first end of the straight section. The second end of the cylindrical section passes through the second chuck and is threadedly connected to the thin cylindrical section of the second connecting sleeve; the clamping sleeve includes a straight cylindrical section and a tapered cylindrical section, with multiple deformation slots spaced apart on the straight cylindrical section and the tapered cylindrical section. The clamping sleeve is fitted onto the bearing of the half-shaft sleeve. The clamping sleeve passes through the second chuck with the end of the straight cylindrical section and is threadedly connected to the thin cylindrical section of the third connecting sleeve, and the outer surface of the tapered cylindrical section abuts against the locking sleeve so that the clamping sleeve clamps the bearing of the half-shaft sleeve; the connecting rod passes through the first fixing hole and the second fixing hole at the corresponding positions and connects to the first chuck and the second chuck. The length adjusting sleeve is fitted onto the connecting rod to adjust the distance between the truck drive axle and the half-shaft sleeve. Locking nuts are provided at both ends of the connecting rod to make the truck drive axle and the half-shaft sleeve abut against each other.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: During the repair process, the locking sleeve is first screwed into the second connecting sleeve, then the clamping sleeve is placed on the bearing of the half-shaft sleeve and screwed into the third connecting sleeve. Then, the locking sleeve is rotated in the opposite direction so that the locking sleeve abuts against the tapered section in the clamping sleeve to lock the clamping sleeve and the bearing in the half-shaft sleeve. The first chuck is fitted onto the bearing seat in the truck drive axle. Then, the connection between the first chuck and the second chuck is completed by the connecting rod. During the connection process, the distance between the truck drive axle and the half-shaft sleeve is adjusted by increasing or decreasing the length of the sleeve. Finally, the locking nuts are screwed into both ends of the connecting rod to achieve coaxial fixation between the truck drive axle and the half-shaft sleeve, ensuring the coaxiality of the two during the repair process and improving the repair quality.

[0008] Optionally, bolt holes are provided on the first chuck at positions corresponding to the bolt holes on the brake disc in the truck drive axle, and the first chuck and the brake disc are fixedly connected by bolts.

[0009] Optionally, it also includes a positioning sleeve, which includes a positioning ring. The positioning ring has multiple locking screws that pass through the positioning ring and point to the center of the positioning ring at intervals. The positioning ring has multiple ear plates. The positioning sleeve is fitted onto the brake disc of the truck drive axle, and the positioning sleeve is made coaxial with the brake disc by adjusting the locking screws. A third through hole is opened on the first chuck at the corresponding position of the ear plate on the positioning sleeve. The first chuck and the positioning sleeve are fixedly connected by the ear plate, the third through hole and bolts.

[0010] Optionally, it also includes a diameter adjusting sleeve fitted on the half-shaft sleeve bearing, and a clamping sleeve fitted on the diameter adjusting sleeve. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, are not intended to limit the scope of the invention. In the drawings:

[0012] Figure 1 This is a schematic diagram of a positioning device for repairing a truck drive axle provided in an embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of another positioning device for repairing a truck drive axle provided in an embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the structure of a first chuck provided in an embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of a second chuck portion provided in an embodiment of the present invention, wherein the left side a is a schematic diagram of the main structure and the right side b is a schematic diagram of the side cross-sectional structure;

[0016] Figure 5 This is a schematic diagram of a positioning sleeve provided in an embodiment of the present invention.

[0017] The components include: first chuck 1, second chuck 2, connecting rod 3, length adjusting sleeve 4, locking sleeve 5, clamping sleeve 6, first connecting sleeve 7, second connecting sleeve 8, third connecting sleeve 9, first through hole 10, truck drive axle 11, bearing seat 12, first fixing hole 13, second through hole 14, second fixing hole 15, half shaft sleeve 16, locking nut 17, brake backing plate 18, positioning sleeve 19, positioning ring 20, locking screw 21, ear plate 22, third through hole 23, and diameter adjusting sleeve 24. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this invention are used to explain the invention, but are not intended to limit the invention.

[0019] See Figures 1-5 The present invention provides a positioning device for repairing a truck drive axle, comprising a first chuck 1, a second chuck 2, a connecting rod 3, a length adjusting sleeve 4, a locking sleeve 5, a clamping sleeve 6, a first connecting sleeve 7, a second connecting sleeve 8, and a third connecting sleeve 9, wherein...

[0020] The first chuck 1 has a first through hole 10 in the middle, and the first chuck 1 is sleeved on the bearing seat 12 of the truck drive axle 11 through the first through hole. Multiple first fixing holes 13 are spaced apart on the first chuck 1 with the center of the first through hole 10 as the center. The second chuck 2 has a second through hole 14 and a second fixing hole 15 at corresponding positions to the first through hole 10 and the first fixing holes 13 on the first chuck 1. One end of the first connecting sleeve 7 is disposed in the second through hole 14. The second connecting sleeve 8 and the third connecting sleeve 9 are stepped cylindrical. The second connecting sleeve 8 is sleeved inside the first connecting sleeve 7, and the third connecting sleeve 9 is sleeved inside the second connecting sleeve 8. The thinner sections of the second connecting sleeve 8 and the third connecting sleeve 9 are close to the second chuck 2. The locking sleeve 5 includes a straight section and force-applying rods spaced apart on the outer wall of the first end of the straight section. The second end of the straight section passes through the second chuck 2 and is threadedly connected to the thin section of the second connecting sleeve 8; the clamping sleeve 6 includes a straight section and a tapered section, with multiple deformation slots spaced apart on the straight section and the tapered section. The clamping sleeve 6 is mounted on the bearing of the half-shaft sleeve 16. The clamping sleeve 6 passes through the second chuck 2 with the end of the straight section and is threadedly connected to the thin section of the third connecting sleeve 9. The outer side of the tapered section abuts against the locking sleeve 5, so that the clamping sleeve 6 clamps the bearing of the half-shaft sleeve 16. The connecting rod 3 passes through the first fixing hole 13 and the second fixing hole 15 at the corresponding positions and connects to the first chuck 1 and the second chuck 2. The length adjusting sleeve 4 is mounted on the connecting rod 3 to adjust the distance between the truck drive axle 11 and the half-shaft sleeve 16. Locking nuts 17 are provided at both ends of the connecting rod 3 to make the truck drive axle 11 and the half-shaft sleeve 16 abut against each other.

[0021] In practice, in order to enhance the stability of the connection between the overall device and the truck drive axle, bolt holes are provided on the first chuck 1 at the corresponding positions of the bolt holes on the brake disc 18 in the truck drive axle 11, and the first chuck 1 and the brake disc 18 are fixedly connected by bolts.

[0022] In practice, the diameters of the bearing housings in different models of truck drive axles 11 are not entirely the same. To accommodate bearing housings of different diameters, one approach is to provide a first chuck 1 with a first through hole 10 of different diameters. However, this approach undoubtedly increases costs. The inventors of this application have discovered that the brake disc 18 in different models of truck drive axles 11 is roughly the same in size. Based on this, another approach may include a positioning sleeve 19, which includes a positioning ring 20 with multiple positioning rings spaced apart. A locking screw 21 passes through the positioning ring 20 and points to the center of the positioning ring 20. The positioning ring 20 is provided with multiple ear plates 22. The positioning sleeve 19 is fitted onto the brake disc 18 of the truck drive axle 11. The positioning sleeve 19 and the brake disc 18 are made coaxial by adjusting the locking screw 21. A third through hole 23 is opened on the first chuck 1 at the corresponding position of the ear plate 22 on the positioning sleeve 19. The first chuck 1 and the positioning sleeve 19 are fixedly connected by the ear plate 22, the third through hole 23 and bolts. This is used to repair different models of truck drive axles.

[0023] In practice, it may also include a diameter adjustment sleeve 24 fitted on the bearing of the half-shaft sleeve 16, and a clamping sleeve 6 fitted on the diameter adjustment sleeve 24; a through groove may be opened on the diameter adjustment sleeve 24 as an expansion joint to facilitate clamping, and the half-shaft sleeve 16 of different diameters can be adapted to the clamping sleeve 6 through the diameter adjustment sleeve 24.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A positioning device for truck drive axle repair, characterized in that, The first chuck, the second chuck, the connecting rod, the length adjustment sleeve, the locking sleeve, the clamping sleeve, the first connecting sleeve, the second connecting sleeve and the third connecting sleeve are arranged in sequence. The first chuck is arranged on the bearing seat of the truck drive axle through the first through hole, and a plurality of first fixing holes are arranged on the first chuck at intervals with the center of the first through hole as the center; the second chuck is provided with a second through hole and a second fixing hole at positions corresponding to the first through hole and the first fixing hole of the first chuck; one end of the first connecting sleeve is arranged in the second through hole, the second connecting sleeve and the third connecting sleeve are in a stepped sleeve shape, the second connecting sleeve is sleeved on the first connecting sleeve, the third connecting sleeve is sleeved on the second connecting sleeve, and the thin cylinder segments of the second connecting sleeve and the third connecting sleeve are close to the second chuck; the locking sleeve comprises a straight cylinder segment and a plurality of force rods arranged at intervals on the outer wall of the first end of the straight cylinder segment, and the second end of the straight cylinder segment is threadedly connected with the thin cylinder segments of the second connecting sleeve and the second connecting sleeve through the second chuck; the clamping sleeve comprises a straight cylinder segment and a tapered cylinder segment, a plurality of deformation seams are arranged at intervals on the straight cylinder segment and the tapered cylinder segment, the clamping sleeve is sleeved on the bearing of the half shaft sleeve pipe, the clamping sleeve is threadedly connected with the thin cylinder segments of the third connecting sleeve through the second end of the straight cylinder segment and the second chuck, and the outer side surface of the tapered cylinder segment is tightly abutted with the locking sleeve so that the clamping sleeve clamps the bearing of the half shaft sleeve pipe; the connecting rod is connected with the first chuck and the second chuck through the first fixing holes and the second fixing holes at corresponding positions, the length adjustment sleeve is sleeved on the connecting rod to adjust the distance between the truck drive axle and the half shaft sleeve pipe, and the two ends of the connecting rod are provided with locking nuts so that the truck drive axle and the half shaft sleeve pipe are tightly abutted. The positioning sleeve comprises a positioning ring, a plurality of locking screws are arranged at intervals on the positioning ring and point to the center of the positioning ring, and a plurality of ear plates are arranged on the positioning ring; the positioning sleeve is sleeved on the brake disc of the truck drive axle and is coaxial with the brake disc by adjusting the locking screws, a third through hole is arranged on the first chuck at a position corresponding to the ear plate of the positioning sleeve, and the first chuck is fixedly connected with the positioning sleeve through the ear plate, the third through hole and the bolt. The diameter adjustment sleeve is sleeved on the bearing of the half shaft sleeve pipe, and the clamping sleeve is sleeved on the diameter adjustment sleeve.

2. The positioning device for truck drive axle repair as claimed in claim 1, wherein, A bolt hole is arranged on the first chuck at a position corresponding to the bolt hole on the brake disc of the truck drive axle, and the first chuck is fixedly connected with the brake disc through the bolt.

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