CN219466068U - Dismounting tool for differential mechanism planetary gear shaft residual pin - Google Patents

Abstract

The utility model discloses a disassembly tool for a differential mechanism planetary gear shaft residual pin, which comprises the following components: the base is provided with a placing hole matched with the gear shaft, a fixing component for fixing the position of the gear shaft on the base is in sliding fit with the base, and a pressing rod for pressing the residual pin is in sliding fit with the base; through the mode, the risk in the process of removing the residual pins can be reduced, and the working efficiency of processing the residual pins is improved.

Description

Dismounting tool for differential mechanism planetary gear shaft residual pin

Technical Field

The utility model relates to the field of gear shaft pins, in particular to a disassembly tool for a differential mechanism planetary gear shaft pin.

Background

The differential mechanism planetary gear shaft is a device for transmitting torque to the planetary gears to realize torque distribution so as to realize differential operation of wheels, as shown in a figure I, the differential mechanism planetary gear shaft is a cylindrical shaft for fixing the planetary gears, one end of the gear shaft is provided with a pin hole for being matched with a locking pin, two flat positions are respectively arranged at the matched positions of the two ends of the gear shaft and the planetary gears, and after the planetary gear shaft is extruded from a differential mechanism shell in the process of disassembling the differential mechanism, part of the locking pin is remained in the pin hole of the planetary gear shaft, so that the subsequent use of the differential mechanism planetary gear shaft is influenced;

the current way to remove the residual pin of the locking pin remaining in the pin hole is to fix the planetary gear shaft on the bench vice and then knock the locking pin residual pin out of the pin hole using a hammer plus punch.

However, in this way, the bench vice is not clamped, the punch is slipped, and the like, and the safety risk is presented during the operation.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a disassembly tool for the residual pins of the planetary gear shafts of the differential mechanism, which can reduce the risk in the process of removing the residual pins and improve the working efficiency of processing the residual pins.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a dismantlement frock of differential mechanism planet gear axle incomplete round pin, include: the base is provided with a placing hole matched with the gear shaft, a fixing component for fixing the position of the gear shaft on the base is slidably matched with the base, and a pressing rod for pressing the residual pin is slidably matched with the base.

Preferably, the fixing assembly comprises a first sliding fixing block and a second sliding fixing block which are oppositely arranged, a yielding groove matched with the gear shaft is formed in one side, opposite to the first sliding fixing block and the second sliding fixing block, of the fixing assembly, a plurality of sliding holes are formed in the base, and the first sliding fixing block and the second sliding fixing block are in sliding fit with the corresponding sliding holes.

Preferably, the two ends of the first sliding fixed block and the second sliding fixed block are connected through a limiting block.

Preferably, the base is provided with a threaded hole corresponding to the placement hole, and the threaded hole is connected with an adjusting screw for adjusting the position of the pin hole relative to the compression bar.

Preferably, the base is provided with a punching hole, the punching hole is provided with a guide sleeve, and the compression bar is in sliding fit with the guide sleeve.

Preferably, the base is provided with a waste collection hole, and the waste collection hole is arranged below the pin hole.

Preferably, a fixing seat is arranged below the base, and a stepped hole for supporting the bottom of the base is formed in the fixing seat.

Preferably, the bottom of the fixing seat extends to form an inverted boss.

The beneficial effects of the utility model are as follows: the gear shaft is placed on the base through the placement hole, then the gear shaft is pressed or loosened through the fixing assembly, and then the residual pin is taken out of the pin hole through the stamping of the pressing rod.

Drawings

FIG. 1 is a schematic structural view of a differential planetary gear shaft;

FIG. 2 is a schematic diagram of the whole disassembly tool for the differential planetary gear shaft stub pin of the present utility model;

FIG. 3 is a cross-sectional view of a differential planetary gear shaft stub disassembly tool of the present utility model with the gear shaft compressed;

FIG. 4 is a cross-sectional view from another perspective of a differential planetary gear shaft stub disassembly tool of the present utility model, with the gear shaft compressed;

FIG. 5 is a cross-sectional view of the differential planetary gear shaft stub disassembly tool of the present utility model with the gear shaft relaxed;

fig. 6 is a cross-sectional view of another view of the differential planetary gear shaft stub disassembly tool of the present utility model, with the gear shaft relaxed.

The components in the drawings are marked as follows:

1. a gear shaft; 11. a flat position; 2. a base; 21. a lower base block; 22. an upper base block; 222. a threaded hole;

223. punching a hole; 2231. a guide sleeve; 23. collecting waste holes; 31. a first sliding fixed block; 32. a second sliding fixed block; 33. a relief groove; 34. a limiting block; 4. a fixing seat; 41. a boss is inverted; 5. and (5) pressing the rod.

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.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Physical quantities in the formulas, unless otherwise noted, are understood to be basic quantities of basic units of the international system of units, or derived quantities derived from the basic quantities by mathematical operations such as multiplication, division, differentiation, or integration.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

referring to fig. 2, a disassembly tool for a differential planetary gear shaft stub includes: the base 2, the base 2 includes circular shape lower foundation block 21 and sets up the last foundation block 22 on lower foundation block 21, go up foundation block 22 and lower foundation block 21 integrated into one piece, go up the foundation block 22 and be the cuboid setting, go up set up on the foundation block 22 with gear shaft 1 matched with place the hole, place the hole and be circular shape blind hole, place the hole and set up the horizontal center department at last foundation block 22, go up sliding fit on the foundation block 22 and have the fixed subassembly that is used for fixing gear shaft 1 position on the base 2, go up sliding fit on the foundation block 22 and have the depression bar 5 that is used for punching press residual pin, depression bar 5 sets up for placing the hole is perpendicular, depression bar 5 and the pinhole on the gear shaft 1 are coaxial.

Referring to fig. 2, 3 and 5, the fixing assembly includes a first sliding fixing block 31 and a second sliding fixing block 32 which are oppositely arranged, a yielding groove 33 which is matched with the flat bit 11 at two ends of the gear shaft 1 is formed in the center of one side of the first sliding fixing block 31 and the second sliding fixing block 32, the yielding groove 33 is in a trapezoid shape, two sliding holes are formed in the base 2, and the first sliding fixing block 31 and the second sliding fixing block 32 are in sliding fit with the corresponding sliding holes, so that the positions of the yielding groove 33 relative to the gear shaft 1 are controlled by controlling the left and right sliding of the first sliding fixing block 31 and the second sliding fixing block 32, and the first sliding fixing block 31 and the second sliding fixing block 32 press the gear shaft 1 or do not contact with the gear shaft 1 to loosen the gear shaft 1;

the first slide fixing block 31 and the second slide fixing block 32 are connected at both ends thereof by a stopper 34, so that the first slide fixing block 31 and the second slide fixing block 32 are synchronously controlled by the connection of the stopper 34, and in addition, a range in which the first slide fixing block 31 and the second slide fixing block 32 slide on the upper base block 22 is limited is also provided.

Referring to fig. 4 and 6, in order to adapt to different gear shafts 1, namely, in order to adjust the positions of the pin holes relative to the compression bar 5, a threaded hole 222 corresponding to the placement hole is formed in the upper base block 22, the threaded hole 222 is communicated with the placement hole, and the threaded hole 222 is in threaded connection with an adjusting screw, so that the end part of the adjusting screw is abutted against the end part of the gear shaft 1 placed in the placement hole, and further the function of controlling the depth of the gear shaft 1 inserted into the placement hole is achieved, the position of the adjusting pin hole relative to the compression bar 5 is achieved, and further the function of processing different gear shafts 1 can be achieved;

the upper base block 22 is provided with a punching hole 223, the punching hole 223 is provided with a guide sleeve 2231, and the compression bar 5 is in sliding fit with the guide sleeve 2231, so that the accuracy of the up-and-down movement position of the compression bar 5 in the punching hole 223 is ensured, the residual pin in the pin hole is further processed more stably, the punching hole 223 is coaxial with the circular lower base block 21, and therefore, a tool can be placed into a press in a certain mode, and the compression bar 5 is always coaxial with the press head of the press;

the base 2 is provided with a waste collection hole 23, the waste collection hole 23 is arranged below the pin hole of the gear shaft 1, so that space is provided for discharging the residual pin, the discharged residual pin falls out through the waste collection hole 23, and the waste collection hole 23 can be a through hole for facilitating further discharging of the residual pin.

Referring to fig. 2, 4 and 6, for convenient placement and supporting of the position of the base 2, a fixing seat 4 is provided below the lower base block 21, and a circular stepped hole for supporting the bottom of the lower base 2 is formed in the fixing seat 4, so that the lower base 2 is placed on the fixing seat 4, the fixing seat 4 and the lower base block 21 can be detachably arranged, such as clearance fit, so that the rapid placement and positioning of the base 2 on the fixing seat 4 are achieved, and meanwhile, the fixing seat 4 can provide support for other bases 2, so that the production cost is reduced;

to facilitate the quick positioning of the base 2 on the clamp on the press, the bottom of the fixing seat 4 is extended with an inverted boss 41.

The operation process comprises the following steps: when the residual pin is dismounted, the first sliding fixed block 31 and the second sliding fixed block 32 are pushed to the right limit position, so that the yielding grooves 33 are aligned with the placement holes, space is provided for the insertion of the gear shaft 1 into the placement holes, one end of the gear shaft 1 with the residual pin is inserted into the placement holes in the upper and lower directions, at the moment, the gear shaft 1 cannot be contacted with the first sliding fixed block 31 and the second sliding fixed block 32 due to the yielding grooves 33, and then the first sliding fixed block 31 and the second sliding fixed block 32 are pushed to the left limit position, so that the gear shaft 1 is clamped through the opposite side surfaces of the first sliding fixed block 31 and the second sliding fixed block 32, and the position of the gear shaft 1 is further fixed;

then the fixed seat 4 is placed on a clamp on a press, the lower base block 21 is placed on the fixed seat 4, the pressing rod 5 is placed in the guide sleeve 2231, the press is started, the press transmits pressure to the pressing rod 5 through a pressing head, the pressing rod 5 presses out a residual pin from a pin hole, and finally the first sliding fixed block 31 and the second sliding fixed block 32 are pushed to the right limit position, and the gear shaft 1 is taken out.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (8)

1. Disassembly tool for differential mechanism planetary gear shaft residual pin, which is characterized by comprising: the base (2), offer on base (2) with gear shaft (1) matched with place the hole, sliding fit has the fixed subassembly that is used for fixing gear shaft (1) position on base (2), sliding fit has depression bar (5) that are used for punching press incomplete round pin on base (2).

2. The disassembly tool for the differential planetary gear shaft residual pin according to claim 1, wherein: the fixed subassembly is including relative first slip fixed block (31) and the second slip fixed block (32) that set up, first slip fixed block (31) and second slip fixed block (32) relative one side seted up with gear shaft (1) matched with groove of stepping down (33), a plurality of slide holes have been seted up on base (2), first slip fixed block (31) and second slip fixed block (32) and corresponding slide hole sliding fit.

3. The disassembly tool for the differential planetary gear shaft residual pin according to claim 2, wherein: the two ends of the first sliding fixed block (31) and the second sliding fixed block (32) are connected through a limiting block (34).

4. The disassembly tool for the differential planetary gear shaft residual pin according to claim 1, wherein: the base (2) is provided with a threaded hole (222) corresponding to the placement hole, and the threaded hole (222) is connected with an adjusting screw for adjusting the position of the pin hole relative to the compression bar (5).

5. The disassembly tool for the differential planetary gear shaft residual pin according to claim 1, wherein: the base (2) is provided with a punching hole (223), the punching hole (223) is provided with a guide sleeve (2231), and the compression bar (5) is in sliding fit with the guide sleeve (2231).

6. The disassembly tool for the differential planetary gear shaft residual pin according to any one of claims 2 or 5, wherein: waste collection holes (23) are formed in the base (2), and the waste collection holes (23) are formed below the pin holes.

7. The disassembly tool for the differential planetary gear shaft residual pin according to claim 1, wherein: the lower part of the base (2) is provided with a fixing seat (4), and the fixing seat (4) is provided with a stepped hole for supporting the bottom of the base (2).

8. The disassembly tool for the differential planetary gear shaft residual pin according to claim 7, wherein: the bottom of the fixing seat (4) is extended with an inverted boss (41).