Aligning and press-fitting device for planet shaft of automobile starter

Abstract

The utility model relates to an alignment press-fitting device for a planetary shaft of an automobile starter, which belongs to the technical field of planetary shafts of starters and comprises a planetary shaft, a rotary table arranged at the top of the planetary shaft and four pin shaft supports. The four pin shaft supports are located in the four fixing frames correspondingly, sliding grooves are formed in the inner walls of the two sides, close to the pin shaft supports, of the four fixing frames correspondingly, and sliding plates with one ends extending into the sliding grooves are fixedly connected to the two side faces, close to the fixing frames, of the four pin shaft supports correspondingly. According to the automobile starter planet shaft alignment press-fitting device, through sliding connection between a sliding plate and a sliding groove, a pin shaft support is driven to move, the distance is adjusted, planet shafts of different specifications can be limited, the practicability and the using effect are improved, through threaded connection between a driving rod and a screw rod, the pin shaft support is driven to move, and therefore the precision of alignment press-fitting is improved. And the operation of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary shafts for starters, in particular to a planetary shaft alignment and pressing device for automobile starters. Background Art

[0002] A car is a means of transportation that is powered by power and is a non-track-borne vehicle with four or more wheels. A car is composed of multiple auto parts connected together. The starter, also known as a motor, converts the electrical energy of the battery into mechanical energy, drives the engine flywheel to rotate, and starts the engine. The planetary gear shaft is an important component in the car differential. According to the assembly characteristics of the planetary shaft, it is necessary to align the holes on the planetary shaft with the holes on the frame assembly during the assembly process, and then tighten the corresponding set screws after the assembly is in place.

[0003] Chinese patent CN209439728U discloses a planetary shaft alignment and pressing device, which discloses a technical solution that can trap mosquitoes while lighting, and solves the problem that the existing planetary shaft assembly process has errors in alignment, which will cause the locking screws to be installed improperly and need to be removed and reinstalled. Since the fit is an interference fit, it is inconvenient to disassemble and assemble. The existing technology uses manual marking for alignment and low assembly efficiency.

[0004] When the device is in use, the planetary shaft is restricted by the pin shaft bracket, but the spacing between the pin shaft bracket and the planetary shaft is a fixed distance, which is not convenient for restricting planetary shafts of different sizes, reducing practicality and use effect. Therefore, a planetary shaft alignment and pressing device for an automobile starter is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a planetary shaft alignment and pressing device for an automobile starter, which has the advantage of convenient adjustment and solves the problem that when the device is in use, the planetary shaft is restricted by a pin shaft bracket, but the spacing between the pin shaft bracket and the planetary shaft is a fixed distance, which is inconvenient to restrict planetary shafts of different sizes, thereby reducing practicality and use effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a planetary shaft alignment and pressing device for an automobile starter, comprising a planetary shaft, a turntable placed on the top of the planetary shaft, and four pin shaft brackets, wherein the outer peripheral wall of the turntable is fixedly connected with four fixing frames.

[0007] The four pin shaft brackets are respectively located inside the four fixing frames, and the inner walls on both sides of the four fixing frames close to the pin shaft brackets are provided with sliding grooves. The two side surfaces of the four pin shaft brackets close to the fixing frames are fixedly connected to a slide plate with one end extending into the inside of the sliding groove, and the bottom surfaces of the four pin shaft brackets are fixedly connected to two support plates.

[0008] The four fixing frames are all provided with driving components for driving the pin shaft bracket to move.

[0009] The four fixing frames are all provided with supporting components for supporting the pin shaft bracket.

[0010] Furthermore, the four fixing frames are all U-shaped frames, and the slide plate and the slide groove are slidably connected.

[0011] Furthermore, the two adjacent support plates are both inclined, and the two adjacent support plates are inclined relative to each other.

[0012] Furthermore, the driving assembly includes two limit plates, and the two limit plates are fixedly connected to the top surface of the pin shaft bracket. The inner walls on both sides of the fixed frame close to the pin shaft bracket are provided with limit grooves, and the limit plates extend to the interior of the limit grooves. The interiors of the two limit grooves are movably connected to the driving rod through bearings, and the back sides of the two limit plates are fixedly connected to a screw rod with one end extending to the interior of the driving rod.

[0013] Furthermore, threaded holes are provided on the front sides of the two driving rods, and the two screw rods extend into the inside of the two threaded holes respectively and are threadedly connected thereto.

[0014] Furthermore, the two limiting plates are both L-shaped plates, and the limiting plates and limiting grooves are slidably connected.

[0015] Furthermore, the support assembly includes two connecting plates, both of which are placed on the bottom surface of the fixing frame, the connecting plate and the support plate are fixedly connected, the bottom surface of the fixing frame is provided with two positioning grooves, both of which are slidably connected to the inside of the two positioning grooves with positioning blocks, the positioning blocks and the connecting plates are fixedly connected, and the two positioning blocks are fixedly connected to rubber pads on one side close to the positioning grooves.

[0016] Furthermore, the rubber pad fits the positioning groove, and the positioning block and the positioning groove are both T-shaped.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. The automobile starter planetary shaft alignment press-fit device drives the pin shaft bracket to move and adjust the spacing through the sliding connection between the slide plate and the slide groove, which can limit planetary shafts of different specifications, improve practicality and use effect, and drive the pin shaft bracket to move through the threaded connection between the driving rod and the screw rod, which is convenient for the staff to operate;

[0019] 2. The automobile starter planetary shaft alignment and pressing device supports the top and bottom of the pin support through the sliding connection between the limit plate and the limit groove and the action of the support plate, thereby improving the stability of the pin support. At the same time, the support plate is supported through the cooperation between the positioning block and the positioning groove, thereby improving the stability of the support plate, which is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 for Figure 1 A is a magnified schematic diagram of the structure;

[0022] Figure 3 It is a schematic diagram of the right side of the internal structure of the front fixing frame in the structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the right side of the positioning block in the structure of the utility model.

[0024] In the figure: 1 planetary shaft, 2 turntable, 3 fixing frame, 4 limiting groove, 5 limiting plate, 6 pin support, 7 slide plate, 8 slide groove, 9 connecting plate, 10 positioning groove, 11 rubber pad, 12 positioning block, 13 supporting plate, 14 driving rod, 15 screw rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1: Please refer to Figure 1-4 In this embodiment, a planetary shaft alignment and pressing device for a car starter includes a planetary shaft 1, a turntable 2 placed on the top of the planetary shaft 1, and four pin shaft brackets 6. The outer peripheral wall of the turntable 2 is fixedly connected with four fixing frames 3.

[0027] The four pin brackets 6 are respectively located inside the four fixing frames 3, and the inner walls on both sides of the four fixing frames 3 close to the pin brackets 6 are provided with sliding grooves 8. The two side surfaces of the four pin brackets 6 close to the fixing frames 3 are fixedly connected to a slide plate 7 with one end extending into the inside of the sliding groove 8, and the bottom surfaces of the four pin brackets 6 are fixedly connected to two support plates 13.

[0028] Among them, the four fixing frames 3 are all U-shaped frames, the slide plate 7 and the slide groove 8 are slidably connected, and the two adjacent support plates 13 are both inclined, and the two adjacent support plates 13 are relatively inclined.

[0029] Specifically, the sliding connection between the slide plate 7 and the slide groove 8 drives the pin support 6 to move, and the bottom of the pin support 6 is supported by the support plate 13 to improve the stability of the pin support 6.

[0030] Example 2: Please refer to Figure 1-4 In this embodiment, on the basis of the first embodiment, four fixing frames 3 are each provided with a driving assembly, and the driving assembly includes two limit plates 5, and the two limit plates 5 are fixedly connected to the top surface of the pin support 6. Limit grooves 4 are provided on the inner walls on both sides of the fixing frame 3 close to the pin support 6, and the limit plates 5 extend to the inside of the limit grooves 4. The insides of the two limit grooves 4 are both movably connected with a driving rod 14 through a bearing, and the backs of the two limit plates 5 are fixedly connected to a screw 15 having one end extending to the inside of the driving rod 14.

[0031] Among them, the front sides of the two driving rods 14 are both provided with threaded holes, and the two screw rods 15 extend into the inside of the two threaded holes respectively and are threadedly connected thereto, and the two limiting plates 5 are both L-shaped plates, and the limiting plates 5 and the limiting grooves 4 are slidably connected.

[0032] Specifically, the driving rod 14 is turned to rotate, and the position of the pin support 6 is adjusted through the threaded connection between the driving rod 14 and the screw rod 15, and the top of the pin support 6 is supported through the sliding connection between the limiting plate 5 and the limiting groove 4.

[0033] Example 3: Please refer to Figure 1-4 In this embodiment, on the basis of the first and second embodiments, four fixing frames 3 are provided with support components, the support components include two connecting plates 9, the two connecting plates 9 are placed on the bottom surface of the fixing frame 3, the connecting plates 9 and the support plates 13 are fixedly connected, the bottom surface of the fixing frame 3 is provided with two positioning grooves 10, the insides of the two positioning grooves 10 are slidably connected with positioning blocks 12, the positioning blocks 12 and the connecting plates 9 are fixedly connected, and the two positioning blocks 12 are fixedly connected with rubber pads 11 on one side close to the positioning grooves 10.

[0034] The rubber pad 11 fits the positioning groove 10 , and the positioning block 12 and the positioning groove 10 are both T-shaped.

[0035] Specifically, through the sliding connection between the positioning block 12 and the positioning groove 10, the support plate 13 moves together with the pin support 6, and through the fit between the rubber pad 11 and the positioning groove 10, the positioning block 12 is supported to improve the stability of the positioning block 12.

[0036] The working principle of the above embodiment is:

[0037] When the pin support 6 needs to be adjusted, the driving rod 14 is rotated to make the driving rod 14 rotate. The screw 15 drives the pin support 6 to move through the threaded connection between the driving rod 14 and the screw 15 and the sliding connection between the slide plate 7 and the slide groove 8, and the position of the pin support 6 is adjusted. The top of the pin support 6 is supported by the sliding connection between the limit plate 5 and the limit groove 4. The bottom of the pin support 6 is supported by the action of the support plate 13 to improve the stability of the pin support 6. The support plate 13 moves with the pin support 6 through the sliding connection between the positioning block 12 and the positioning groove 10. The positioning block 12 is supported by the fit between the rubber pad 11 and the positioning groove 10 to improve the stability of the positioning block 12.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A planetary shaft alignment and pressing device for a starter motor, comprising a planetary shaft (1), a turntable (2) placed on top of the planetary shaft (1), and four pin shaft brackets (6), characterized in that: Four fixing frames (3) are fixedly connected to the outer peripheral wall of the turntable (2); The four pin shaft brackets (6) are respectively located inside the four fixing frames (3); the inner walls on both sides of the four fixing frames (3) close to the pin shaft brackets (6) are provided with slide grooves (8); the two side surfaces of the four pin shaft brackets (6) close to the fixing frames (3) are fixedly connected to a slide plate (7) with one end extending into the inside of the slide groove (8); the bottom surfaces of the four pin shaft brackets (6) are fixedly connected to two support plates (13); The four fixing frames (3) are each provided with a driving assembly, and the four fixing frames (3) are each provided with a supporting assembly.

2. The planetary shaft alignment and press-fitting device for an automobile starter according to claim 1, characterized in that: The four fixing frames (3) are all U-shaped frames, and the slide plate (7) and the slide groove (8) are slidably connected.

3. The planetary shaft alignment and press-fitting device for an automobile starter according to claim 2, characterized in that: The two adjacent support plates (13) are both inclined, and the two adjacent support plates (13) are relatively inclined.

4. The planetary shaft alignment and press-fitting device for an automobile starter according to claim 1, characterized in that: The driving assembly comprises two limit plates (5), the two limit plates (5) are fixedly connected to the top surface of the pin support (6), the inner walls of both sides of the fixing frame (3) close to the pin support (6) are provided with limit grooves (4), the limit plates (5) extend to the inside of the limit grooves (4), the inside of the two limit grooves (4) are movably connected to the driving rod (14) through bearings, and the backs of the two limit plates (5) are fixedly connected to a screw (15) with one end extending to the inside of the driving rod (14).

5. The automobile starter planetary shaft alignment and press-fitting device according to claim 4, characterized in that: The front sides of the two driving rods (14) are both provided with threaded holes, and the two screw rods (15) respectively extend into the inside of the two threaded holes and are threadedly connected thereto.

6. The automobile starter planetary shaft alignment and press-fitting device according to claim 5, characterized in that: The two limiting plates (5) are both L-shaped plates, and the limiting plates (5) are slidably connected to the limiting grooves (4).

7. The automobile starter planetary shaft alignment and press-fitting device according to claim 4, characterized in that: The support assembly comprises two connecting plates (9), the two connecting plates (9) are placed on the bottom surface of the fixing frame (3), the connecting plates (9) and the supporting plate (13) are fixedly connected, the bottom surface of the fixing frame (3) is provided with two positioning grooves (10), the insides of the two positioning grooves (10) are slidably connected with positioning blocks (12), the positioning blocks (12) and the connecting plates (9) are fixedly connected, and the side surfaces of the two positioning blocks (12) close to the positioning grooves (10) are fixedly connected with rubber pads (11).

8. The automobile starter planetary shaft alignment and press-fitting device according to claim 7, characterized in that: The rubber pad (11) and the positioning groove (10) fit together, and the positioning block (12) and the positioning groove (10) are both T-shaped.

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