Limiting structure and shifting fork shaft support

Abstract

The utility model discloses a limiting structure and a shifting fork shaft support, and relates to the technical field of shifting fork shaft supports, the limiting structure comprises a shifting fork frame and a fastening ring, and a fixing ring is welded on one side of the shifting fork frame. When the limiting structure and the shifting fork shaft support are assembled, the shifting fork frame and the fixing ring are connected to the outer side of the shifting fork rotating shaft in a sliding and sleeving mode, then the first sleeve frame and the second sleeve frame are connected to the outer side of the shifting fork rotating shaft in a sleeving mode, and the first sleeve frame drives the first sleeve rod and the second sleeve rod to be inserted into one end of the shifting fork frame in a sliding mode; one end of the first sleeve rod and one end of the second sleeve rod penetrate and extend out of the inner side of the second sleeve frame, so that the positioning ring abuts against one side of the second sleeve frame, meanwhile, the first sleeve frame and the second sleeve frame drive the positioning block to be inserted into the positioning groove, the first sleeve frame and the second sleeve frame are limited to the outer side of the shifting fork rotating shaft, and then the fastening ring is connected to the outer side of the threaded part in a threaded and sleeving mode; the shifting fork shaft support can prevent the shifting fork frame from shaking left and right under the condition that the shifting fork rotating shaft does not rotate, and the stability of the shifting fork shaft support is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a shift fork shaft bracket, in particular to a limiting structure and a shift fork shaft bracket. Background Art

[0002] The shift fork shaft bracket is a crucial component in mechanical transmission systems, primarily used to support and secure the shift fork shaft, enabling it to move freely along a defined trajectory. It is typically installed in a transmission, clutch, or other transmission device, and works in conjunction with the shift fork plate to perform operations such as shifting and clutch disengagement. The shift fork shaft bracket is typically constructed of high-strength metal, offering superior wear resistance and durability.

[0003] However, since the fork plate and the shaft on the existing fork shaft bracket are slidably connected, there is no additional structure to limit the fork plate. When the fork plate moves to shift gears, the fork plate is prone to rotate and shake on the shaft, reducing the stability of the fork shaft bracket. Therefore, we propose a limiting structure and a fork shaft bracket. Utility Model Content

[0004] The purpose of the present utility model is to provide a limiting structure and a shift fork shaft bracket to solve the problem raised in the above background technology that the shift fork plate on the shift fork shaft bracket currently on the market is prone to rotate and shake on the shaft when the shift fork plate is moved for shifting, thereby reducing the stability of the shift fork shaft bracket.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a limiting structure, including a fork frame and a fastening ring, a fixing ring welded to one side of the fork frame, a limiting mechanism is provided at one end of the fork frame close to the fixing ring, and the fastening ring is arranged on the outside of the limiting mechanism.

[0006] Preferably, the limiting mechanism includes a No. 1 sleeve frame, a No. 1 sleeve rod, a No. 2 sleeve rod, a positioning ring and a threaded portion, and one end of the fork frame is slidably sleeved with the No. 1 sleeve rod and the No. 2 sleeve rod.

[0007] Preferably, one end of the No. 1 sleeve rod and the No. 2 sleeve rod is fixedly connected to the No. 1 sleeve frame, and one end of the No. 1 sleeve rod and the No. 2 sleeve rod away from the No. 1 sleeve frame is fixedly connected to a positioning ring.

[0008] Preferably, the No. 1 sleeve rod and the No. 2 sleeve rod are provided with threaded portions near the outer sides of the positioning ring, and the fastening ring and the threaded portions are threadedly sleeved.

[0009] Preferably, the outer sides of the No. 1 sleeve rod and the No. 2 sleeve rod away from the No. 1 sleeve frame are slidably sleeved with the No. 2 sleeve frame, and the inner sides of the No. 1 sleeve frame and the No. 2 sleeve frame are both fixed with positioning blocks.

[0010] A shift fork shaft bracket comprises a shift fork rotating shaft and a through hole, positioning grooves are provided at both ends of the shift fork rotating shaft, the shift fork rotating shaft is in sliding sleeve connection with a No. 1 sleeve, a No. 2 sleeve, a fixing ring and a shift fork frame, a dustproof mechanism is installed on the outer side of the fixing ring, and the through hole is arranged on the inner side of the dustproof mechanism.

[0011] Preferably, a plug-in structure is formed between the positioning groove and the positioning block, the dustproof mechanism includes a sealing ring, a dustproof cover, a threaded hole and a screw, and the dustproof cover is sleeved on the outer side of the fixing ring.

[0012] Preferably, the dust cover is slidably connected to the fork shaft, a sealing ring is installed on the inner wall of the dust cover, threaded holes are provided at both ends of the fixing ring, and a screw is provided on one side of the threaded hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Set a limiting mechanism, first slide the shift fork frame and the fixing ring onto the outside of the shift fork shaft, and then sleeve the No. 1 sleeve and the No. 2 sleeve onto the outside of the shift fork shaft, so that the No. 1 sleeve drives the No. 1 sleeve rod and the No. 2 sleeve rod to slide and insert one end of the shift fork frame, and one end of the No. 1 sleeve rod and the No. 2 sleeve rod penetrates and extends out of the inner side of the No. 2 sleeve, so that the positioning ring rests on one side of the No. 2 sleeve. At the same time, the No. 1 sleeve and the No. 2 sleeve drive the positioning block to insert into the positioning groove, limiting the No. 1 sleeve and the No. 2 sleeve to the outside of the shift fork shaft, and then thread the fastening ring onto the outside of the threaded part, so that the No. 1 sleeve and the No. 2 sleeve are connected. Through the limitation of the No. 1 sleeve rod and the No. 2 sleeve rod, the shift fork frame can be prevented from shaking left and right when the shift fork shaft does not rotate, thereby improving the stability of the shift fork shaft bracket.

[0015] 2. A dust-proof mechanism is provided. The dust cover is sleeved on the outside of the fork shaft and the fixing ring, and then the screws are inserted into the through hole and the threaded hole. The screws are threadedly connected to the threaded hole to confine the dust cover to the outside of the fixing ring. The dust cover and the sealing ring can seal the gap between the fork frame and the fork shaft, reduce dust entry, reduce wear, and extend the service life of the fork shaft bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the fork frame of the utility model;

[0018] Figure 3 This is a schematic diagram of the shift fork shaft structure of the utility model;

[0019] Figure 4This is a schematic diagram of the three-dimensional structure of the No. 1 sleeve frame of the utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the No. 2 sleeve frame of the utility model;

[0021] Figure 6 This is a schematic diagram of the three-dimensional decomposition structure of the dust-proof mechanism of the utility model;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the dust cover of the utility model.

[0023] In the figure: 1. fork shaft; 2. fork frame; 3. fixing ring; 4. limiting mechanism; 401. No. 1 sleeve; 402. No. 1 sleeve rod; 403. No. 2 sleeve rod; 404. positioning ring; 405. threaded portion; 5. fastening ring; 6. through hole; 7. dustproof mechanism; 701. sealing ring; 702. dust cover; 703. threaded hole; 704. screw; 8. No. 2 sleeve; 9. positioning block; 10. positioning groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1-6The utility model provides a technical solution: a limiting structure, including a fork frame 2 and a fastening ring 5, a fixing ring 3 is welded on one side of the fork frame 2, a limiting mechanism 4 is provided at one end of the fork frame 2 close to the fixing ring 3, the fastening ring 5 is arranged on the outside of the limiting mechanism 4, the limiting mechanism 4 includes a No. 1 sleeve 401, a No. 1 sleeve rod 402, a No. 2 sleeve rod 403, a positioning ring 404 and a threaded portion 405, one end of the fork frame 2 is slidably sleeved with the No. 1 sleeve rod 402 and the No. 2 sleeve rod 403, one end of the No. 1 sleeve rod 402 and the No. 2 sleeve rod 403 is fixedly connected to the No. 1 sleeve 401, and the No. 1 sleeve rod 402 and the No. 2 sleeve rod 403 are fixedly connected to the No. 1 sleeve 401 at one end, and the No. 1 sleeve rod 402 and the No. 2 sleeve rod 403 are fixedly connected at one end away from the No. 1 sleeve 401 There is a positioning ring 404, and the outer sides of the No. 1 sleeve rod 402 and the No. 2 sleeve rod 403 near the positioning ring 404 are provided with a threaded portion 405, and the fastening ring 5 and the threaded portion 405 are threadedly sleeved, and the No. 1 sleeve rod 402 and the No. 2 sleeve rod 403 are slidingly sleeved with the No. 2 sleeve frame 8 away from the outer side of the No. 1 sleeve frame 401, and the inner sides of the No. 1 sleeve frame 401 and the No. 2 sleeve frame 8 are fixed with positioning blocks 9, and the fork shaft 1 and the No. 1 sleeve frame 401, the No. 2 sleeve frame 8, the fixing ring 3, and the fork frame 2 are all slidingly sleeved, and a positioning groove 10 is provided at the inner end of the fork shaft 1, and a plug-in structure is formed between the positioning groove 10 and the positioning block 9, and the No. 1 sleeve frame 401 and the No. 2 sleeve frame 8 are both configured as arc structures.

[0026] In specific implementation, since the fork plate on the existing fork shaft bracket is slidably connected to the shaft, there is no additional structure for limiting the fork plate. When the fork plate moves to shift gears, the fork plate is easy to rotate and shake on the shaft, reducing the stability of the fork shaft bracket. When assembling the fork shaft bracket, the fork bracket 2 and the fixing ring 3 can be slidably connected to the outside of the fork rotating shaft 1, and then the No. 1 sleeve 401 and the No. 2 sleeve 8 can be connected to the outside of the fork rotating shaft 1, so that the No. 1 sleeve 401 drives the No. 1 sleeve rod 402 and the No. 2 sleeve rod 403 to slide into one end of the fork bracket 2, and the No. 1 sleeve rod 402 and the No. 2 sleeve rod One end of 403 extends through the inner side of the No. 2 sleeve 8, so that the positioning ring 404 rests on one side of the No. 2 sleeve 8. At the same time, the No. 1 sleeve 401 and the No. 2 sleeve 8 drive the positioning block 9 to be inserted into the positioning groove 10, limiting the No. 1 sleeve 401 and the No. 2 sleeve 8 to the outside of the shift fork shaft 1. Then the fastening ring 5 is threadedly sleeved on the outside of the threaded portion 405, so that the No. 1 sleeve 401 and the No. 2 sleeve 8 are connected. The limitation of the No. 1 sleeve rod 402 and the No. 2 sleeve rod 403 can prevent the shift fork frame 2 from shaking left and right when the shift fork shaft 1 does not rotate, thereby improving the stability of the shift fork shaft bracket.

[0027] See also Figure 1-Figure 3 and Figure 5-Figure 7A shift fork shaft bracket comprises a shift fork rotating shaft 1 and a through hole 6. A dustproof mechanism 7 is installed on the outer side of the fixing ring 3. The through hole 6 is arranged on the inner side of the dustproof mechanism 7. The dustproof mechanism 7 comprises a sealing ring 701, a dustproof cover 702, a threaded hole 703 and a screw 704. The outer side of the fixing ring 3 is sleeved with a dustproof cover 702. The dustproof cover 702 is slidably sleeved with the shift fork rotating shaft 1. A sealing ring 701 is installed on the inner wall of the dustproof cover 702. Threaded holes 703 are provided at both ends of the fixing ring 3. A screw 704 is provided on one side of the threaded hole 703.

[0028] In specific implementation, when the fork shaft bracket is working, some dust will enter the gap between the fork plate and the shaft from one end of the fork plate. The dust will increase wear. The dust cover 702 can be put on the outside of the fork shaft 1 and the fixing ring 3, and then the screw 704 is inserted into the through hole 6 and the threaded hole 703. The screw 704 and the threaded hole 703 are threadedly connected to restrict the dust cover 702 to the outside of the fixing ring 3. The dust cover 702 and the sealing ring 701 can seal the gap where the fork frame 2 contacts the fork shaft 1, reduce dust entry, reduce wear, and extend the service life of the fork shaft bracket.

[0029] Working principle: When using the limiting structure and the fork shaft bracket, first, when assembling the fork shaft bracket, the fork bracket 2 can be sleeved on the outside of the fork rotating shaft 1, and then the position of the fork bracket 2 can be limited by the limiting mechanism 4 to prevent shaking. At the same time, the dust cover 702 and the sealing ring 701 seal the gap of the fork bracket 2, thereby improving the stability and practicality of the fork shaft bracket. The contents not described in detail in this description belong to the existing technology known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A limiting structure, comprising a shift fork frame (2) and a fastening ring (5), characterized in that: A fixing ring (3) is welded to one side of the fork frame (2), a limiting mechanism (4) is provided at one end of the fork frame (2) close to the fixing ring (3), and the fastening ring (5) is arranged on the outside of the limiting mechanism (4).

2. A limiting structure according to claim 1, characterized in that: The limiting mechanism (4) comprises a No. 1 sleeve frame (401), a No. 1 sleeve rod (402), a No. 2 sleeve rod (403), a positioning ring (404) and a threaded portion (405); one end of the shift fork frame (2) is slidably sleeved with the No. 1 sleeve rod (402) and the No. 2 sleeve rod (403).

3. A limiting structure according to claim 2, characterized in that: One end of the No. 1 sleeve rod (402) and the No. 2 sleeve rod (403) is fixedly connected to the No. 1 sleeve frame (401), and one end of the No. 1 sleeve rod (402) and the No. 2 sleeve rod (403) away from the No. 1 sleeve frame (401) is fixedly connected to a positioning ring (404).

4. A limiting structure according to claim 3, characterized in that: The first sleeve rod (402) and the second sleeve rod (403) are provided with a threaded portion (405) on the outer side close to the positioning ring (404), and the fastening ring (5) and the threaded portion (405) are threadedly sleeved.

5. A limiting structure according to claim 4, characterized in that: The first sleeve rod (402) and the second sleeve rod (403) are slidably sleeved with the second sleeve frame (8) away from the outer side of the first sleeve frame (401), and the inner sides of the first sleeve frame (401) and the second sleeve frame (8) are fixed with positioning blocks (9).

6. A shift fork shaft bracket, applying a limiting structure according to any one of claims 1 to 5, comprising a shift fork rotating shaft (1) and a through hole (6), characterized in that: Positioning grooves (10) are provided at both ends of the shift fork shaft (1). The shift fork shaft (1) is in sliding sleeve connection with the first sleeve frame (401), the second sleeve frame (8), the fixed ring (3), and the shift fork frame (2). A dustproof mechanism (7) is installed on the outside of the fixed ring (3), and the through hole (6) is provided on the inside of the dustproof mechanism (7).

7. The fork shaft bracket according to claim 6, characterized in that: A plug-in structure is formed between the positioning groove (10) and the positioning block (9); the dustproof mechanism (7) comprises a sealing ring (701), a dustproof cover (702), a threaded hole (703) and a screw (704); and the dustproof cover (702) is sleeved on the outer side of the fixing ring (3).

8. The fork shaft bracket according to claim 7, characterized in that: The dust cover (702) and the shift fork shaft (1) are in sliding sleeve connection, a sealing ring (701) is installed on the inner wall of the dust cover (702), threaded holes (703) are provided at both ends of the fixing ring (3), and a screw (704) is provided on one side of the threaded hole (703).

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