High-precision adjustable sliding fork

Abstract

The utility model discloses a high-precision adjustable sliding fork. The sliding fork comprises a sliding fork main body, an anti-slip structure, a connecting piece and a locking structure, the anti-slipping structure is connected to the outer wall of the sliding fork body in a sliding mode, the anti-slipping structure is provided with an abutting ring which abuts against the abutting head and the sliding fork body to slip, the locking structure is arranged at one end of the connecting piece, and the locking structure is provided with a lock cover which locks the anti-slipping structure to move. According to the sliding fork, after the threaded ring is connected into the threaded groove in a threaded mode, the bolt is inserted into the inserting hole of the locking ring and then screwed into the threaded hole, the abutting ring can be firmly locked and limited to the inner wall of the connecting piece, and when the sliding fork body slides outwards in a transmission mode, the abutting head can be abutted by the abutting ring and cannot slide outwards; and the locking structure can improve the stable work of the anti-slipping structure and improve the anti-slipping effect, so that the normal transmission use of an automobile is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile transmission structures, in particular to a high-precision adjustable sliding fork. Background Art

[0002] With the development and progress of society, cars have entered people's lives more and more, and more and more cars have become an indispensable part of people's lives. The drive shaft of a car is a high-speed, less-supported rotating body. It is an important component for transmitting power in the car's transmission system. Its function is to transmit the power of the engine to the wheels together with the gearbox and drive axle, so that the car can generate driving force. The drive shaft is provided with a sliding fork with adjustable length. The sliding fork and the output end of the transmission are connected by a connecting piece. The drive shaft sliding fork and the output transmission end of the transmission have relative reciprocating sliding along the axial direction, so that the adjustable length can be achieved when rotating to ensure that no motion interference occurs under the condition that the relative position of the drive axle and the transmission often changes.

[0003] A current transmission sliding fork, as described in the patent with publication number CN216242232U, comprises: a sliding fork and a transmission connecting piece, a through hole is provided inside the sliding fork, a plurality of inner tooth grooves are provided in an annular manner on the inner wall of the through hole, a through groove is provided inside the transmission connecting piece, a plurality of first magnets are fixedly installed in an annular manner on the inner wall of the through groove, a plurality of grooves are provided in an annular manner on the outer wall of the sliding fork, a blocking mechanism for limiting the sliding fork is provided inside the groove; the inner tooth grooves on the inner wall of the sliding fork through hole will slide in cooperation with the outer tooth keys on the outer wall of the spline shaft, and when the sliding fork slides to a dangerous position and shows signs of separation, the sliding fork can be limited by the cooperation of the blocking mechanism and the first magnet, which can prevent it from falling off the spline shaft of the transmission connecting piece, avoid the phase deviation caused by the sliding fork falling off, reduce the subsequent vibration or abnormal noise of the vehicle, ensure the effect after installation, improve the use effect and life of the vehicle, and have good protection against the sliding fork.

[0004] With respect to the above-mentioned related technologies, the applicant believes that when a transmission sliding fork is working and is critically slipping on the spline shaft, the two groups of magnets attract each other, so that the blocking mechanism blocks and limits the position to avoid slipping. However, in actual use, the outer wall of the sliding fork will generate heat due to the relative rotation of the inner wall of the connecting part, and the sliding fork will generate certain vibrations when used for transmission. The two factors of heat and vibration will directly affect the changes in the magnetic structure of the magnet, causing the magnetism of the magnet to weaken or even disappear, which will reduce the mutual attraction between the magnets and reduce the probability of triggering the blocking mechanism for limiting. Long-term use will increase the probability of slipping, thereby affecting the normal transmission use of the car. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision adjustable sliding fork to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision adjustable sliding fork, comprising: a sliding fork body, an anti-slip structure, a connecting piece and a locking structure; the anti-slip structure is slidably connected to the outer wall of the sliding fork body, the anti-slip structure has an abutment ring that resists the abutment head and the sliding fork body from slipping, the locking structure is arranged at one end of the connecting piece, and the locking structure has a lock cover that locks the movement of the anti-slip structure.

[0007] By adopting the above technical solution, an anti-slip structure is added to the sliding fork body, so that after the sliding fork body is plugged into the connecting piece, the anti-slip structure will be locked on the lock cover, and when the sliding fork body is about to slide off the connecting piece, the abutment head will abut against one end of the abutment ring, so that the sliding fork body cannot slide. In combination with the locking structure, the anti-slip structure can maintain stable operation in the case of relative rotation, thereby achieving the effect of improving the anti-slip effect during long-term use, thereby ensuring the normal transmission use of the car.

[0008] Preferably, the anti-slip structure includes an abutment ring inserted on the outer wall of the sliding fork body, a threaded ring welded to one end of the abutment ring, a locking ring welded to one end of the threaded ring and an abutment joint welded to one end of the sliding fork body.

[0009] By adopting the above technical solution, after the sliding fork body is inserted into the connecting piece, the threaded ring and the locking ring can be locked on the lock cover, and the abutment ring is used to block the abutment head, so that the abutment head and the sliding fork body cannot move outward from the connecting piece, thereby achieving the effect of limiting the sliding fork body.

[0010] Preferably, the locking structure includes a spline shaft rotatably connected to the inside of the connecting piece, a lock cover welded to one end of the lock cover, and a threaded groove opened on the inner wall of the lock cover, and the threaded ring is threadedly connected to the threaded groove.

[0011] By adopting the above technical solution, the abutment ring and the threaded ring are rotatably connected in the lock cover, and the threaded ring is threadedly connected to the thread groove, thereby achieving the function of limiting the connection of the anti-slip structure on the lock cover, so that the abutment ring cannot move and can firmly resist the abutment head from moving outward.

[0012] Preferably, the locking structure further comprises a threaded hole formed at one end of the lock cover and a bolt inserted into the insertion hole of the lock ring, and one end of the bolt is threadedly connected in the threaded hole.

[0013] By adopting the above technical solution, when one side of the locking ring approaches the lock cover, a bolt can be inserted into the socket of the lock hole and tightened in the threaded hole, so that the locking ring can be locked on one side of the lock cover and cannot rotate, thereby achieving the effect of preventing the threaded ring from rotating in the threaded groove, reducing the influence of vibration on the loosening of the anti-slip structure, and improving the stability of the limited position of the abutment ring.

[0014] Preferably, the inner diameters of the abutment ring, the threaded ring and the locking ring are the same as the outer diameter of the sliding fork body, and the outer wall of the sliding fork body is coated with lubricating grease.

[0015] By adopting the above technical solution and designing the diameter of the structure, the inner wall of the abutment ring can be fitted with the outer wall of the sliding fork body to support and rotate all around, so that the sliding fork body can be transmitted along the axis under the action of the lubricating paste, thereby improving the stability of the transmission between the sliding fork body and the spline shaft.

[0016] Preferably, the abutment head and the sliding fork body are an integral structure, and the outer diameters of the abutment head and the abutment ring are the same as the inner diameter of the connecting piece.

[0017] By adopting the above technical solution, the strength of the force applied to one end during sliding can be increased by using an integrated structure of the abutment joint and the sliding fork body, and the outer wall of the abutment joint will rotate in fit with the inner wall of the connecting piece, so that the front and rear ends of the sliding fork body can be supported on the inner wall of the connecting piece, so that the sliding fork body can rotate stably about the axis, reducing the probability of damage to the spline shaft due to eccentric rotation, thereby increasing the stable working life of the sliding fork body and the spline shaft.

[0018] Preferably, the abutment ring, the threaded ring and the locking ring are an integrated structure plugged into the sliding fork body, and the integrated structure is located on the sliding fork body on the inner side of the abutment head.

[0019] By adopting the above technical solution, by adopting an integrated structure and being slidably connected to the outer wall of the sliding fork body, the installed sliding fork body and the anti-slip structure will not affect each other, and sliding transmission can be performed within the specified range of the spline shaft, thereby reducing the impact of adding the anti-slip structure on the transmission of the sliding fork body.

[0020] Preferably, when the threaded ring is tightened with the threaded groove, the insertion hole of the locking ring and the threaded hole are aligned with each other and threadedly connected with a bolt.

[0021] By adopting the above technical solution and designing the positions of the threaded hole and the socket, when tightening the threaded ring in the threaded groove, the threaded hole and the socket can be directly aligned, which makes it convenient to insert and tighten the bolt to lock the locking ring, thereby improving the convenience of installing the sliding fork body.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] By threading the threaded ring into the threaded groove, inserting the bolt into the insertion hole of the lock ring and tightening it in the threaded hole, the abutment ring can be firmly locked and limited on the inner wall of the connecting piece. When the sliding fork body is driven to slide outward, the abutment head can be resisted by the abutment ring and cannot slide outward, thereby achieving the function of preventing the sliding fork body from slipping off. The locking structure can improve the stable operation of the anti-slipping structure and the anti-slipping effect, so as to ensure the normal transmission use of the automobile.

[0024] By setting the outer diameter and inner diameter of the abutment ring, the threaded ring and the abutment joint, the abutment joint can be fitted on the inner wall of the connecting piece for rotation, and the abutment ring and the threaded ring can be fitted on the outer wall of the sliding fork body for rotation, so that the sliding fork body can be kept inserted in the connecting piece and rotated about the axis, reducing the probability of damage to the spline shaft due to eccentric rotation, thereby increasing the stable working life of the sliding fork body and the spline shaft;

[0025] By designing the positions of the threaded hole and the insertion hole, when tightening the threaded ring in the threaded groove, the threaded hole and the insertion hole can be directly aligned, which is convenient for inserting and tightening the bolt to lock the locking ring, thereby improving the convenience of installing the sliding fork body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main structure of the device of the utility model;

[0027] Figure 2 It is a schematic diagram of the anti-slip structure and the sliding fork body of the utility model;

[0028] Figure 3 This is a cross-sectional view of the main structure of the device of the utility model;

[0029] Figure 4 It is a schematic diagram of the anti-slip structure and locking structure of the utility model;

[0030] Figure 5 It is a schematic diagram of the abutment ring structure of the utility model.

[0031] In the figure: 1. sliding fork body; 2. anti-slip structure; 201. abutment ring; 202. threaded ring; 203. locking ring; 204. abutment head; 3. connecting piece; 4. locking structure; 401. spline shaft; 402. lock cover; 403. threaded groove; 404. threaded hole; 405. bolt. DETAILED DESCRIPTION

[0032] 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.

[0033] The following is combined with Figure 1-5 The utility model is described in further detail.

[0034] Embodiment 1

[0035] See also Figures 1 to 5 The utility model provides an embodiment: a high-precision adjustable sliding fork, comprising: a sliding fork body 1, an anti-slip structure 2, a connecting piece 3 and a locking structure 4. Through the cooperation between the above structures, the sliding fork body 1 can be prevented from slipping. The locking structure 4 can improve the stable operation of the anti-slip structure 2 and improve the anti-slip effect to ensure the normal transmission use of the automobile. The anti-slip structure 2 is slidably connected to the outer wall of the sliding fork body 1. The anti-slip structure 2 has an abutment ring 201 that resists the abutment head 204 and the sliding fork body 1 from slipping. When the sliding fork body 1 continues to slide outward, the blocking between the abutment head 204 and the abutment ring 201 can be used to limit the position, so as to achieve the anti-slip effect on the sliding fork body 1. The locking structure 4 is arranged at one end of the connecting piece 3. The locking structure 4 has a lock cover 402 that locks the movement of the anti-slip structure 2. The anti-slip structure 2 can be locked on the lock cover 402 by using the lock cover 402, so as to ensure the stable use of the anti-slip structure 2 to prevent the sliding fork body 1 from slipping.

[0036] Embodiment 2

[0037] See also Figure 3 and Figure 4The anti-slip structure 2 includes an abutting ring 201 inserted on the outer wall of the sliding fork body 1, the inner wall of the abutting ring 201 is inserted on the outer wall of the sliding fork body 1, and can be moved on the sliding fork body 1 at will, a threaded ring 202 welded on one end of the abutting ring 201, the threaded ring 202 is welded with the abutting ring 201 to form an integrated structure, and can also be moved on the sliding fork body 1, a locking ring 203 welded on one end of the threaded ring 202, one side of the locking ring 203 is welded on the threaded ring 202, and the threaded ring 202 and the abutting ring are connected. The connecting ring 201 forms an integral structure together, which is used to prevent the sliding fork body 1 from slipping off. The abutment joint 204 welded at one end of the sliding fork body 1 is welded to the sliding fork body 1 to form an integral structure. When the sliding fork body 1 slips off, the abutment joint 204 will abut against one side of the abutment ring 201, thereby preventing the sliding fork body 1 from slipping out of the connecting member 3. The locking structure 4 includes a spline shaft 401 rotatably connected to the inside of the connecting member 3. The spline shaft 401 is an existing structure that can be plugged and slidably driven with the sliding fork body 1. The lock cover 402 is welded at one end of the lock cover 402, and the lock cover 402 is welded at one end of the connecting piece 3, which can lock and limit the anti-slip structure 2 to ensure the stability of the anti-slip structure 2. The threaded groove 403 is provided on the inner wall of the lock cover 402, and the threaded ring 202 is threadedly connected to the threaded groove 403. By tightening the threaded ring 202 in the threaded groove 403, the abutment ring 201 can be firmly limited on the inner wall of the connecting piece 3 to block the abutment head 204. The locking structure 4 also includes a threaded hole provided at one end of the lock cover 402 404, a threaded hole 404 is provided on the surface of one end of the lock cover 402, a bolt 405 is inserted into the insertion hole of the lock ring 203, one end of the bolt 405 is threadedly connected in the threaded hole 404, and the bolt 405 is inserted into the insertion hole of the lock ring 203 and tightened in the threaded hole 404, so that the lock ring 203 can be locked on one side of the lock cover 402 and cannot rotate, thereby achieving the effect of preventing the threaded ring 202 from rotating in the threaded groove 403, reducing the influence of vibration on the loosening of the anti-slip structure 2, and improving the stability of the position of the abutment ring 201 being limited.

[0038] Embodiment 3

[0039] See also Figures 2 to 5The inner diameters of the abutment ring 201, the threaded ring 202 and the locking ring 203 are the same as the outer diameter of the sliding fork body 1, and the outer wall of the sliding fork body 1 is coated with lubricating paste. By designing the diameter of the structure, the inner wall of the abutment ring 201 can fit with the outer wall of the sliding fork body 1 to support and rotate in all directions, so that the sliding fork body 1 can be transmitted about the axis under the action of the lubricating paste, thereby improving the transmission stability between the sliding fork body 1 and the spline shaft 401. The abutment joint 204 and the sliding fork body 1 are an integrated structure. The abutment joint 204 and the sliding fork body 1 with an integrated structure can improve the force strength of one end during sliding. The outer diameters of the abutment joint 204 and the abutment ring 201 are the same as the inner diameter of the connecting member 3. The outer wall of the abutment joint 204 will fit and rotate with the inner wall of the connecting member 3, so that the front and rear ends of the sliding fork body 1 can be supported on the inner wall of the connecting member 3, so that the sliding fork body 1 can stably rotate about the axis, reducing the damage to the spline shaft 401 caused by eccentric rotation. The probability of stable operation is improved, thereby improving the service life of the sliding fork body 1 and the spline shaft 401. The abutment ring 201, the threaded ring 202 and the locking ring 203 are an integrated structure and are inserted into the sliding fork body 1, and the integrated structure is located on the sliding fork body 1 inside the abutment head 204. The integrated structure is adopted and can be slidably connected to the outer wall of the sliding fork body 1, so that the installed sliding fork body 1 and the anti-slip structure 2 do not affect each other, and can slide within the specified range of the spline shaft 401, reducing the influence of the anti-slip structure 2 on the transmission of the sliding fork body 1. When the threaded ring 202 and the threaded groove 403 are tightened, the insertion hole of the locking ring 203 and the threaded hole 404 are aligned with each other and the bolt 405 is threadedly connected. By designing the position of the threaded hole 404 and the insertion hole, when tightening the threaded ring 202 in the threaded groove 403, the threaded hole 404 and the insertion hole can be directly aligned, so that the bolt 405 can be inserted and tightened to lock the locking ring 203, thereby improving the convenience of installing the sliding fork body 1.

[0040] Working principle: When in use, insert the sliding fork body 1 onto the spline shaft 401, insert the abutment ring 201 into the connecting piece 3, and tighten the threaded ring 202 into the threaded groove 403. At this time, the threaded hole 404 will be aligned with the insertion hole on the locking ring 203, and the bolt 405 will be tightened into the threaded hole 404 to complete the assembly of the sliding fork body 1. By tightening the bolt 405 into the threaded hole 404, the locking ring 203 and the structure can no longer rotate. In addition, the threaded ring 202 is tightened into the threaded groove 403 to ensure that the position of the abutment ring 201 is locked. When the sliding fork body 1 slides on the spline shaft 401 to the abutment ring 201, the abutment head 204 will be blocked by the abutment ring 201, so that the sliding fork body 1 cannot slide and achieves the effect of preventing slipping.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A high-precision adjustable sliding fork, characterized in that: include: Sliding fork body (1); An anti-slip structure (2), the anti-slip structure (2) being slidably connected to the outer wall of the sliding fork body (1), the anti-slip structure (2) comprising an abutment ring (201) for resisting against the abutment head (204) and the sliding fork body (1) from slipping; Connector (3); A locking structure (4), wherein the locking structure (4) is arranged at one end of the connecting member (3), and the locking structure (4) has a locking cover (402) for locking the movement of the anti-slip structure (2).

2. A high-precision adjustable sliding fork according to claim 1, characterized in that: The anti-slip structure (2) comprises an abutment ring (201) inserted on the outer wall of the sliding fork body (1), a threaded ring (202) welded to one end of the abutment ring (201), a locking ring (203) welded to one end of the threaded ring (202), and an abutment joint (204) welded to one end of the sliding fork body (1).

3. A high-precision adjustable sliding fork according to claim 2, characterized in that: The locking structure (4) comprises a spline shaft (401) rotatably connected to the interior of the connecting member (3), a lock cover (402) welded to one end of the lock cover (402), and a threaded groove (403) formed on the inner wall of the lock cover (402), and the threaded ring (202) is threadedly connected to the threaded groove (403).

4. A high-precision adjustable sliding fork according to claim 3, characterized in that: The locking structure (4) further comprises a threaded hole (404) formed at one end of the lock cover (402) and a bolt (405) inserted into the insertion hole of the lock ring (203), wherein one end of the bolt (405) is threadedly connected in the threaded hole (404).

5. A high-precision adjustable sliding fork according to claim 2, characterized in that: The inner diameters of the abutment ring (201), the threaded ring (202) and the lock ring (203) are the same as the outer diameter of the sliding fork body (1), and the outer wall of the sliding fork body (1) is coated with lubricating grease.

6. A high-precision adjustable sliding fork according to claim 2, characterized in that: The abutment head (204) and the sliding fork body (1) are an integral structure, and the outer diameters of the abutment head (204) and the abutment ring (201) are the same as the inner diameter of the connecting piece (3).

7. A high-precision adjustable sliding fork according to claim 2, characterized in that: The abutment ring (201), the threaded ring (202) and the lock ring (203) are an integrated structure plugged into the sliding fork body (1), and the integrated structure is located on the sliding fork body (1) inside the abutment head (204).

8. The high-precision adjustable sliding fork according to claim 3, characterized in that: When the threaded ring (202) and the threaded groove (403) are tightened, the insertion hole of the locking ring (203) and the threaded hole (404) are aligned with each other and threadedly connected with the bolt (405).

Images