CN212123121U - A general extracting tool for gearbox - Google Patents
A general extracting tool for gearbox Download PDFInfo
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- CN212123121U CN212123121U CN202020226672.5U CN202020226672U CN212123121U CN 212123121 U CN212123121 U CN 212123121U CN 202020226672 U CN202020226672 U CN 202020226672U CN 212123121 U CN212123121 U CN 212123121U
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Abstract
The utility model provides a general extracting tool for gearbox, aim at solve the more complicated, the loaded down with trivial details and the higher problem of cost of current gearbox dismounting device structure. The universal disassembling tool for the gearbox comprises a transmission rod and a disassembling plate; the transmission rod comprises a top boss and a screw rod arranged below the top boss; the middle part of the disassembling plate is provided with a threaded hole, and the bottom end of the screw rod is arranged in the threaded hole; the two ends of the dismounting plate are respectively provided with a first waist-shaped hole connected with the output flange of the gearbox and a second waist-shaped hole connected with the rear bearing support of the main shaft of the transmission, the first waist-shaped hole and the second waist-shaped hole at the two ends of the dismounting plate are symmetrically arranged, the width of the first waist-shaped hole is larger than that of the second waist-shaped hole, and the first waist-shaped hole and the second waist-shaped hole are communicated.
Description
Technical Field
The utility model relates to a gearbox dismounting device, concretely relates to a general extracting tool for gearbox.
Background
A gearbox is a mechanism that varies the speed and torque of the engine, which can fix or change the output and input shaft gear ratios in steps. As the time of use of the gearbox increases, a series of problems may arise, and the gearbox therefore needs to be dismantled for maintenance. Adopt spline transition fit between the output ring flange of gearbox and the output shaft, after using for a long time, the ring flange is often difficult to dismantle during later stage maintenance, and is more time-consuming and energy-consuming when dismantling. Meanwhile, a main shaft rear bearing support of the gearbox is in interference fit with a shell bearing hole, and the bearing is difficult to disassemble during maintenance due to the fact that no gap exists between the bearing and the rear bearing support.
At present, the disassembly of an output flange plate and a rear bearing support of a gearbox is generally realized by beating the flange plate and the rear bearing support to move along the axial direction of a shaft, and the beating mode has high disassembly noise and is inconvenient and easy to damage the flange plate and the rear bearing support; and secondly, the three-jaw type puller is adopted to disassemble the output flange plate, but the tool has the advantages of more complex structure, fussy use and higher cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the more complicated, loaded down with trivial details and higher problem of cost of current gearbox dismounting device structure, provide a general extracting tool for gearbox.
For realizing the purpose of the utility model, the technical scheme of the utility model is as follows:
a universal removal tool for a transmission includes a drive link and a removal plate; the transmission rod comprises a top boss and a screw rod arranged below the top boss; the middle part of the disassembling plate is provided with a threaded hole, and the bottom end of the screw rod is arranged in the threaded hole; the both ends of dismantling the board all are provided with the first waist shape hole of being connected with gearbox output ring flange, the second waist shape hole of being connected with derailleur main shaft rear bearing support, the first waist shape hole and the second waist shape hole symmetry at the both ends of dismantling the board set up, and the width in first waist shape hole is greater than the width in second waist shape hole, and first waist shape hole and second waist shape hole are linked together.
Further, still include the disassembly bar, be provided with the disassembly hole on the boss of top, the disassembly bar passes the disassembly hole and installs on the boss of top.
Furthermore, the disassembling rod is provided with an anti-skidding sleeve, so that the disassembling rod is convenient for workers to operate.
Furthermore, the threads on the outer peripheral surface of the screw are trapezoidal threads, and the trapezoidal threads have high root strength, good centering performance and are more wear-resistant than other threads.
Furthermore, a support boss is arranged on the disassembling plate, and the threaded hole is formed in the support boss.
Further, the first waist-shaped hole and the second waist-shaped hole at the two ends of the dismounting plate are coaxial in cross-section center line.
Further, the disassembly plate is a rectangular plate.
Further, the width of the first waist-shaped hole is 17 mm, and the width of the first waist-shaped hole is 8.5 mm.
Further, the trapezoidal thread is an M26 × 2 trapezoidal thread.
Compared with the prior art, the utility model discloses technical scheme has following advantage:
1. different with present extracting tool, the utility model provides a general extracting tool can dismantle the output ring flange that adopts rectangle splined connection, can dismantle two jackshaft derailleur main shaft rear bearing support again, and a thing is multi-purpose, has extensive usage maintaining multiple series of derailleur.
2. The utility model provides a general extracting tool simple structure, convenient to use, cost are lower, small in noise just are difficult to lead to the damage of derailleur, and the during operation reliability is better.
3. The utility model provides a general extracting tool theory of operation and structure can be applied to the design and the manufacturing of extracting tools such as other derailleurs, reduction gear, and it has extensive usage.
Drawings
FIG. 1 is a cross-sectional view of a universal removal tool for a transmission of the present invention;
FIG. 2 is a top view of the universal removal tool for a transmission of the present invention;
FIG. 3 is a structural diagram of the universal dismounting tool for a transmission of the present invention for dismounting an output flange;
figure 4 is the utility model discloses a bearing support's structure chart after general extracting tool dismantles for gearbox.
Reference numerals: 1-transmission rod, 2-disassembly plate, 3-disassembly rod, 4-output flange plate, 5-rear bearing support, 11-top boss, 12-screw rod, 21-first waist-shaped hole, 22-second waist-shaped hole and 23-support boss.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
Between output ring flange 4 and the output shaft based on the gearbox, rear bearing support and casing dead eye are difficult to dismantle, the problem that it is more time-consuming and laborious to dismantle. The utility model provides a general extracting tool can dismantle ring flange, the rear bearing support of different box to can guarantee that bearing and installation part are intact. This extracting tool guarantees that the structure surface of casing is not damaged when using, and the manual operation of being convenient for simultaneously reduces the operation degree of difficulty, improves the security and the work efficiency of dismantling.
As shown in fig. 1 and 2, the utility model provides a general extracting tool for gearbox includes transfer line 1, stripper rod 3 and stripper plate 2; the transmission rod 1 comprises a top end boss 11 and a screw rod 12 arranged below the top end boss 11; the top end boss 11 is provided with a dismounting hole, and the dismounting rod 3 passes through the dismounting hole and is installed on the top end boss 11. The middle part of the disassembling plate 2 is provided with a threaded hole, and the bottom end of the screw 12 is arranged in the threaded hole; the both ends of dismantling board 2 all are provided with the first waist shape hole 21 of being connected with gearbox output ring flange 4, the second waist shape hole 22 of being connected with derailleur main shaft rear bearing support 5, and the first waist shape hole 21 and the second waist shape hole 22 symmetry at the both ends of dismantling board 2 set up, and the width in first waist shape hole 21 is greater than the width in second waist shape hole 22, and just first waist shape hole 21 and second waist shape hole 22 are linked together. In addition, the first kidney-shaped hole 21 and the second kidney-shaped hole 22 at both ends of the dismounting plate 2 have the same cross-sectional center line.
In order to facilitate the operation of workers, the dismounting rod 3 is provided with an anti-skid sleeve. The trapezoidal thread has high root strength, good centering performance and more wear resistance than other threads, so that the thread on the outer peripheral surface of the screw 12 of the transmission rod 1 is the trapezoidal thread.
In order to increase the strength of the threaded hole and ensure that the dismounting rod 3 and the dismounting plate 2 are more reliably connected, the dismounting plate 2 is provided with a supporting boss 23, and the threaded hole is arranged on the supporting boss 23. In the embodiment of the present invention, the detaching plate 2 is a rectangular plate. The width of the first kidney-shaped hole 21 is 17 mm, the width of the first kidney-shaped hole 21 is 8.5 mm, and the thread of the transmission rod 1 is a trapezoidal thread of M26 × 2.
As shown in fig. 3 and 4, the utility model provides a general extracting tool for gearbox simple structure is reliable, and convenient to use is laborsaving, utilizes the laborsaving principle of screw drive and lever, can dismantle the ring flange of assembly on the derailleur and the little assembly of derailleur main shaft rear bearing 5 fast safely. When the flange plate is used, the flange plate and the dismounting plate are connected together by bolts and are driven by the screw rod, so that the flange plate is convenient and labor-saving. When the 12-gear series double-intermediate-shaft transmission main shaft rear bearing support 5 small assembly is disassembled, only a small bolt needs to penetrate through a tool to be screwed onto the rear bearing support 5, the rear bearing support can be used by utilizing screw rod transmission, parts are not damaged, and convenience and labor saving are realized.
Unlike the currently available removal tools: the universal dismounting tool for the gearbox can dismount the output flange plate 4 adopting the rectangular spline and also can dismount the rear bearing support 5 of the main shaft of the double-intermediate-shaft gearbox, has multiple purposes, and has wide application in maintaining various series gearboxes. In addition, the working principle and the structure of the combined detacher can be applied to the design and the manufacture of detaching tools such as other transmissions, speed reducers and the like.
The utility model discloses an in the use for general extracting tool of gearbox, the supporting following standard component that uses: 2 standard parts GB/5786M 16X 1.5X 40 bolts, 2M 16X 1.5 nuts, 2M 12X 1.25X 40 bolts, 2M 12X 1.25 nuts and 2 GB/5787M 8X 1.25X 40 bolts. When the flange plate assembled on the transmission is disassembled: and 2M 16 multiplied by 1.5 multiplied by 40 bolts or 2M 12 multiplied by 1.25 multiplied by 40 bolts are used for connecting the flange plate and the disassembling plate together, and the flange plate is disassembled by utilizing screw rod transmission. When the small assembly of the rear bearing support 5 of the main shaft of the 12-gear series double-intermediate-shaft transmission is disassembled: 2 bolts M8 multiplied by 1.25 multiplied by 40 are used, the small bolts penetrate through a groove 8.5 wide on the tool and are screwed to the rear bearing support 5, and the small assembly of the rear bearing support 5 is disassembled by utilizing screw rod transmission.
The utility model discloses a disassembly rod 3 and 2 combination of dismantlement board are dismantled output ring flange 4 and derailleur main shaft rear bearing support 5 of derailleur, during the dismantlement, it is fixed with output ring flange 4 or derailleur main shaft rear bearing support 5 with disassembly plate 2, through rotatory disassembly rod 3, and then bearing support 5 surface produces even pulling force behind output ring flange 4 or derailleur main shaft, and produce even thrust at derailleur output shaft tip, realize extracting output ring flange 4 or derailleur main shaft rear bearing support 5 from the derailleur output shaft, output ring flange 4 or derailleur main shaft rear bearing support 5 structural integrity that utilize this mode to dismantle is good, no structural damage, compare in prior art the mode of utilizing instrument sled to pull etc. to dismantle by force and have obvious advantage, the dismantlement efficiency has not only been improved, the dismantlement degree of difficulty has been reduced, can also guarantee output ring flange 4 or the gearbox main shaft rear bearing support 5 structural integrity that output ring flange 4 or the derailleur main shaft, The structure and surface integrity of the transmission main shaft rear bearing support 5 and the transmission output shaft can not cause irreversible damage to the transmission even if the transmission main shaft rear bearing support is repeatedly disassembled.
Claims (9)
1. A universal removal tool for a transmission, characterized by: comprises a transmission rod (1) and a disassembly plate (2);
the transmission rod (1) comprises a top boss (11) and a screw rod (12) arranged below the top boss (11);
the middle part of the disassembling plate (2) is provided with a threaded hole, and the bottom end of the screw rod (12) is arranged in the threaded hole;
the both ends of dismantlement board (2) all are provided with first waist shape hole (21) be connected with gearbox output ring flange (4), the second waist shape hole (22) of being connected with derailleur main shaft rear bearing support (5), the first waist shape hole (21) and the second waist shape hole (22) symmetry at the both ends of dismantlement board (2) set up, and the width in first waist shape hole (21) is greater than the width in second waist shape hole (22), and first waist shape hole (21) and second waist shape hole (22) are linked together.
2. The universal removal tool for a transmission of claim 1, wherein: still include disassembling rod (3), be provided with the disassembly hole on top boss (11), disassembling rod (3) pass the disassembly hole and install on top boss (11).
3. The universal removal tool for a transmission of claim 2, wherein: and the dismounting rod (3) is provided with an anti-skid sleeve.
4. The universal dismounting tool for a gearbox according to claim 1, 2 or 3, characterized in that: the thread on the outer peripheral surface of the screw rod (12) is a trapezoidal thread.
5. The universal removal tool for a transmission of claim 4, wherein: the disassembling plate (2) is provided with a supporting boss (23), and the threaded hole is formed in the supporting boss (23).
6. The universal removal tool for a transmission of claim 5, wherein: the first waist-shaped hole (21) and the second waist-shaped hole (22) at the two ends of the dismounting plate (2) are coaxial in cross-section center line.
7. The universal removal tool for a transmission of claim 6, wherein: the disassembling plate (2) is a rectangular plate.
8. The universal removal tool for a transmission of claim 7, wherein: the width of the first waist-shaped hole (21) is 17 mm, and the width of the first waist-shaped hole (21) is 8.5 mm.
9. The universal removal tool for a transmission of claim 8, wherein: the trapezoidal thread is an M26X 2 trapezoidal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020226672.5U CN212123121U (en) | 2020-02-28 | 2020-02-28 | A general extracting tool for gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020226672.5U CN212123121U (en) | 2020-02-28 | 2020-02-28 | A general extracting tool for gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212123121U true CN212123121U (en) | 2020-12-11 |
Family
ID=73678022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020226672.5U Active CN212123121U (en) | 2020-02-28 | 2020-02-28 | A general extracting tool for gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212123121U (en) |
-
2020
- 2020-02-28 CN CN202020226672.5U patent/CN212123121U/en active Active
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