WO2022036796A1

WO2022036796A1 - Anti-loosening bolt for tooth difference adjustment

Info

Publication number: WO2022036796A1
Application number: PCT/CN2020/115873
Authority: WO
Inventors: 刘志伟
Original assignee: 刘志伟
Priority date: 2020-08-20
Filing date: 2020-09-17
Publication date: 2022-02-24
Also published as: CN111853028A

Abstract

An anti-loosening bolt for tooth difference adjustment, comprising a bolt (1) and an anti-rotation structure provided at least at one end of the bolt. The anti-rotation structure comprises a base (2), an adjuster (3), a sliding sleeve (8), a snap spring (9), and a head (10) that are sequentially sleeved on the bolt. A plurality of first adjustment structures (4) are provided on the base, a plurality of second adjustment structures (5) are provided on the adjuster, and the first adjustment structures and the second adjustment structures are correspondingly meshed one to one. The adjuster is provided with a plurality of third adjustment structures (6), the sliding sleeve is provided with a plurality of fourth adjustment structures (7), and the third adjustment structures and the fourth adjustment structures are correspondingly meshed one to one. The number of the first adjustment structures and second adjustment structures is different from the number of the third adjustment structures and fourth adjustment structures. The bolt can be locked in real time by adjusting adjustment structures, and in a long-term usage environment, loosening of the anti-loosening bolt for tooth difference adjustment will not occur.

Description

An anti-loosening bolt for adjusting tooth difference

technical field

The present application relates to the technical field of bolts, in particular to an anti-loosening bolt for adjusting tooth difference.

Background technique

Anti-loosening bolts are mainly used to control the loosening failure of the connecting parts in operation under the condition of vibration. Especially for mechanical equipment under the working state of vibration, it is necessary to take measures to prevent the loosening of the parts and affect the normal operation of the mechanical connecting parts.

Anti-loose bolts in the prior art include: anti-loose bolts, anti-loose washers, and main anti-loose nut, and between the main anti-loose nut and the anti-loose washer are provided with anti-loose teeth, and the tooth end angle of the anti-loose teeth is θ1, the inclination angle of the thread on the anti-loosening bolt is θ2. Since the angle θ1 of the tooth end is greater than the inclination angle θ2 of the thread, the purpose of anti-loosening is achieved.

However, in the prior art, the anti-loosening bolt is used in a long-term vibration environment. As the distance between the tooth end angle θ1 and the thread inclination angle θ2 decreases, the height difference of the rise will decrease, and the bolt cannot be locked in real time. stop, so there will still be a slow loosening that separates the connection.

SUMMARY OF THE INVENTION

Therefore, the technical problem to be solved by the present application is to solve the problem that the lock nut in the prior art will still be loose after long-term use, and the bolt cannot be locked in real time, so as to provide a method that can adjust the bolt through the adjustment of the adjustment structure. Real-time locking, and in the long-term use environment, there will be no loose tooth difference adjustment anti-loosening bolts.

In order to solve the above technical problems, the present application provides an anti-rotation structure including a bolt and at least one end of the bolt; the anti-rotation structure includes a base, an adjuster, a sliding sleeve, and a circlip that are sequentially sleeved on the bolt and head;

The base is connected to the to-be-fastened fastener, and the head is connected to the bolt and inserted into the base to be suitable for compressing the base; the circlip is connected to the head and the sliding sleeve, limiting the slippage of the sliding sleeve relative to the head;

The base is provided with a plurality of first adjustment structures, the adjuster is provided with a plurality of second adjustment structures, and the first adjustment structures and the second adjustment structures engage in one-to-one correspondence; A plurality of third adjustment structures are provided, a plurality of fourth adjustment structures are arranged on the sliding sleeve, and the third adjustment structures and the fourth adjustment structures engage in one-to-one correspondence;

The number of the first adjustment structure and the second adjustment structure is different from the number of the third adjustment structure and the fourth adjustment structure.

Further, the number of the first adjustment structure and the second adjustment structure is 25, and the number of the third adjustment structure and the fourth adjustment structure is 26.

Further, the first adjustment structure, the second adjustment structure, the third adjustment structure and the fourth adjustment structure are all right-angled wedge-shaped teeth.

Further, a fixing portion is provided on the side of the base facing away from the adjuster.

Further, the cross section of the fixing portion is a rectangle with rounded corners.

Further, it also includes a fifth adjustment structure, and the fifth adjustment structure includes: at least two protruding parts, which are arranged at intervals along the inner wall of the sliding sleeve;

At least two concave portions are spaced apart along the circumference of the head portion and are suitable for inserting the protruding portion to limit the rotation of the head portion relative to the sliding sleeve.

Further, the number of the protruding portion and the number of the recessed portion are both six.

Further, an opening is provided along the circumferential direction of the head, and the opening provides a accommodating space for the retaining spring.

Further, it also includes a positioning structure, and the positioning structure includes: a positioning groove, which is arranged on one of the sliding sleeve or the circlip;

A positioning protrusion is arranged on the other of the sliding sleeve or the circlip, and is suitable for the positioning protrusion to be inserted into the positioning groove to limit the sliding sleeve relative to the circlip rotation.

Further, the retaining spring is an elastic member.

The technical solution of the present application has the following advantages:

1. The anti-loosening bolt for tooth difference adjustment provided by this application includes: a bolt and an anti-rotation structure provided at least at one end of the bolt; the anti-rotation structure includes a base and an adjuster that are sequentially sleeved on the bolt. , sliding sleeve, circlip and head; the base is connected with the fastener to be fastened, the head is connected with the bolt, and inserted into the base, suitable for pressing the base; the circlip is connected The head and the sliding sleeve limit the sliding of the sliding sleeve relative to the head; the base is provided with a plurality of first adjustment structures, and the adjuster is provided with a plurality of second adjustment structures , the first adjustment structure and the second adjustment structure engage in one-to-one correspondence; the adjuster is provided with a plurality of third adjustment structures, the sliding sleeve is provided with a plurality of fourth adjustment structures, the first The three adjusting structures and the fourth adjusting structures are engaged in one-to-one correspondence; the number of the first adjusting structures and the second adjusting structures is different from that of the third adjusting structures and the fourth adjusting structures.

Since the number of the first adjustment structure and the second adjustment structure is different from the number of the third adjustment structure and the fourth adjustment structure, when the adjuster rotates in the axial direction of the bolt, the rotation angle of the second adjustment structure is larger than that of the fourth adjustment structure. Adjust the rotation angle of the structure to offset the position of the sliding sleeve, so that precise adjustment can be made by using the angle difference between the second adjustment structure and the fourth adjustment structure, so that the adjuster and the sliding sleeve are accurately installed on the base, And in the process of installation, the positional deviation between the base and the head is adjusted. At the same time, since the number of the first adjustment structure and the second adjustment structure is different from the number of the third adjustment structure and the fourth adjustment structure, the locking position of the sliding sleeve to the head can be increased within one week, so that the head can be Stop at each locking position to achieve real-time locking. And the head is provided with a circlip, which restricts the slippage of the sliding sleeve relative to the head, thereby increasing the reliability of the anti-loosening bolt for adjusting the tooth difference.

2. The anti-loosening bolt for tooth difference adjustment provided by this application is provided with a fixing part on the side of the base facing away from the adjuster; in use, due to the setting of the fixing part, the base can be inserted into the required position. In the mounting holes of the fastening parts, the anti-loosening bolts for preventing the adjustment of the tooth difference are relatively rotated relative to the required fastening parts, so as to achieve the purpose of forced braking.

3. In the anti-loosening bolt for tooth difference adjustment provided by the present application, the circlip is an elastic piece. When the circlip is installed, the circlip is elastically deformed under the action of external force, so that the positioning protrusion can move from one of the positioning grooves to the other positioning groove to be fixed, thereby locking the sliding sleeve to prevent slippage of the sliding sleeve relative to the head.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the accompanying drawings required in the description of the specific embodiments or the prior art will be briefly introduced below. The drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of an anti-loosening bolt for tooth difference adjustment provided by the application;

Figure 2 is an exploded view of the components of Figure 1;

Figure 3 is a schematic structural diagram of a bolt;

Fig. 4 is the structural representation of the base;

Figure 5 is a schematic structural diagram of a regulator;

Fig. 6 is the structural representation of nut;

Fig. 7 is the structural representation of the sliding sleeve;

FIG. 8 is a schematic diagram of the structure of the circlip.

Description of reference numbers:

1-bolt; 2-base; 21-fixed part; 3-adjuster; 4-first adjustment structure; 5-second adjustment structure; 6-third adjustment structure; 7-fourth adjustment structure; 8-sliding sleeve 81-protruding part; 82-positioning groove; 9-circlip; 91-positioning protrusion; 92-assembly hole; 10-head; 101-depression; 102-opening;

detailed description

The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict with each other.

As shown in FIG. 1 to FIG. 8 , an anti-loosening bolt for tooth difference adjustment provided by this application includes a bolt 1 and an anti-rotation structure provided at least at one end of the bolt 1 ; the anti-rotation structure includes sequentially sleeved The base 2, the adjuster 3, the sliding sleeve 8, the circlip 9 and the head 10 on the bolt 1; the base 2 is connected with the fastener to be fastened, the head 10 is connected with the bolt 1, and Inserted into the base 2, suitable for pressing the base 2; the retaining spring 9 connects the head 10 and the sliding sleeve 8 to limit the sliding of the sliding sleeve 8 relative to the head 10; The base 2 is provided with a plurality of first adjustment structures 4 , the adjuster 3 is provided with a plurality of second adjustment structures 5 , and the first adjustment structures 4 and the second adjustment structures 5 engage in one-to-one correspondence. ; The regulator 3 is provided with a plurality of third regulating structures 6, the sliding sleeve 8 is provided with a plurality of fourth regulating structures 7, the third regulating structure 6 and the fourth regulating structure 7 are arranged one by one Corresponding engagement; the number of the first adjustment structure 4 and the second adjustment structure 5 is different from the number of the third adjustment structure 6 and the fourth adjustment structure 7 .

The first adjustment structure 4 is arranged on the base 2, the second adjustment structure 5 and the third adjustment structure 6 are respectively arranged on both sides of the adjuster 3, and the fourth adjustment structure 7 is arranged on the sliding sleeve 8. At first, connect the base 2 with the fastener to be fastened, insert the bolt 1 and the head 10 along the base 2, wherein the bolt 1 and the head 10 are integrated as a connecting piece, and the adjuster is set along the head 10 in sequence 3 and the sliding sleeve 8, since the number of the first adjusting structure 4 and the second adjusting structure 5, and the number of the third adjusting structure 6 and the fourth adjusting structure 7 are different, when the adjuster 3 rotates in the axial direction of the bolt 1, The rotation angle of the second adjustment structure 5 is greater than the rotation angle of the fourth adjustment structure 7, so that the position of the sliding sleeve 8 is offset, so that the angle difference between the second adjustment structure 5 and the fourth adjustment structure 7 can be used to make accurate Adjust so that the adjuster 3 and the sliding sleeve 8 are precisely installed on the base 2 . And during the installation process, the positional deviation between the base 2 and the head 10 is adjusted. At the same time, since the number of the first adjusting structure 4 and the second adjusting structure 5 is different from that of the third adjusting structure 6 and the fourth adjusting structure 7, the locking position of the sliding sleeve 8 to the head 10 in one cycle can be increased, so that the head 10 can be locked. The part 10 can stay at each locking position, so as to achieve the purpose of real-time locking. In addition, a retaining spring 9 is provided on one side of the sliding sleeve 8, which limits the sliding of the sliding sleeve 8 relative to the head 10, and increases the reliability of the anti-loosening bolt for adjusting the tooth difference.

As shown in Figures 1 and 2, the anti-loosening bolt for tooth difference adjustment also needs to be used in conjunction with a nut 11. The structure of the nut 11 is the same as that of the head 10, but the nut 11 is provided with threads; in actual use During the process, if one side of the fastener needs to be tightened, the base 2, the adjuster 3, the sliding sleeve 8, and the circlip 9 can be directly installed on the head 10 of the bolt 1; When both sides of the bolt need to be tightened, the nut 11 needs to be installed on the other end of the bolt 1, and the base 2 and the adjuster 3, the sliding sleeve 8 and the circlip 9 are installed on the nut 11 for tightening.

As shown in FIG. 1 and FIG. 2 , this function can be achieved if the number of the first adjustment structure 4 , the second adjustment structure 5 , the third adjustment structure 6 , and the fourth adjustment structure 7 is greater than or equal to two. Specifically, the number of the first adjustment structure 4 and the second adjustment structure 5 may be 25, the number of the third adjustment structure 6 and the fourth adjustment structure 7 may be 26, and the first adjustment structure 4 With the second adjustment structure 5, with the third adjustment structure 6 and the fourth adjustment structure 7, the locking position of the sliding sleeve 8 to the head 10 can be increased; the head 10 can have 650 locks within 360° Points, namely 360°/(360°/25-360°/26) = 650, so that each rotation of the head 10 can stop 650 times and stop at each locking position, so that in each lock It is locked at the stop position to achieve the effect of real-time locking.

As shown in FIG. 4 and FIG. 5 , the first adjustment structure 4 , the second adjustment structure 5 , the third adjustment structure 6 , and the fourth adjustment structure 7 are all right-angled wedge-shaped teeth. In this embodiment, the complete meshing connection is that two oppositely arranged right-angled wedge-shaped teeth are connected to each other, so as to realize the tight connection between the first adjustment structure 4 and the second adjustment structure 5, the third adjustment structure 6 and the fourth adjustment structure 7, And after connecting there is no gap. Since the first adjustment structure 4, the second adjustment structure 5, the third adjustment structure 6, and the fourth adjustment structure 7 are right-angled wedge-shaped teeth, in the process of actual use, the first adjustment structure 4 and the second adjustment structure are used. Taking structure 5 as an example, the second adjusting structure 5 on the side of the adjuster 3 rotates toward the side with a right angle of the first adjusting structure 4 on the base 2, but due to the setting of the right-angle side, the second adjusting structure will be adjusted during rotation. The structure 5 is stuck, so there is no rotation, so that the regulator 3 and the base 2 can be forcedly braked to achieve the purpose of preventing loosening. The third adjustment structure 6 and the fourth adjustment structure 7 are the same as the first adjustment structure 4 and the second adjustment structure 5 .

As an alternative embodiment, the first adjustment structure 4, the second adjustment structure 5, the third adjustment structure 6, and the fourth adjustment structure 7 may be right-angled teeth; that is, each of the first adjustment structure 4 and the second adjustment structure 5, The cross sections of the third adjusting structure 6 and the fourth adjusting structure 7 are cuboid. During use, since the two sides of the first adjusting structure 4 and the second adjusting structure 5 have right-angled sides, when they rotate, the right-angled sides will The setting of the second adjusting structure 5 is stuck, so it will not rotate, so as to realize the forced braking of the adjuster 3 and the base 2, and achieve the purpose of preventing loosening.

As shown in FIG. 4 , a fixing portion 21 is provided on the side of the base 2 facing away from the regulator 3 , and the cross-section of the fixing portion 21 is a rectangle with rounded corners. During use, due to the setting of the fixing portion 21, the base 2 can be inserted into the mounting hole of the component to be fastened, and the fasteners are completely tightly connected, and the relative positions of the bolts 1 and the fasteners to be fastened are fixed, preventing The bolt 1 rotates relative to the component to be fastened, and cooperates with the first adjustment structure 4 , the second adjustment structure 5 , the third adjustment structure 6 and the fourth adjustment structure 7 , thereby achieving the purpose of forced braking. The cross-section of the fixing portion 21 is set to be rounded and rectangular, which fully increases the utilization rate of the fixing portion 21 and facilitates processing.

As an alternative embodiment, the cross section of the fixing portion 21 can also be made into a triangle. Of course, other shapes can also be used, which can be set according to actual conditions.

Further, it also includes a fifth adjustment structure, and the fifth adjustment structure includes: at least two protruding parts 81 arranged at intervals along the inner wall of the sliding sleeve 8; at least two concave parts 101, along the head part 10 are arranged at intervals in the circumferential direction, and are suitable for the insertion of the protruding portion 81 to limit the rotation of the head 10 relative to the sliding sleeve 8 . In this embodiment, the number of the protruding parts 81 and the number of the recessed parts 101 is matched, and specifically, the number of the protruding parts 81 and the number of the recessed parts 101 is six. Of course, it can also be set to more than one, which can be set according to the actual situation. At this time, the numerical difference between the first adjustment structure 4 and the second adjustment structure 5, the third adjustment structure 6, the fourth adjustment structure 7, and the fifth adjustment mechanism increases the locking position; specifically, it is 360°/6- (360°/25-360°/26)×X>0, X is equal to or less than 108. Take the largest integer value of X to get X=108, and at the same time, substitute 108 into 360°/(360°/6-(360°/25-360°/26)*X), and the obtained value is 1950. Therefore, After the first adjustment structure 4 and the second adjustment structure 5 are combined with the third adjustment structure 6 and the fourth adjustment structure 7 and the fifth adjustment mechanism, there are 1950 locking positions in total. After one locking position, the distance between two adjacent locking positions can reach the micrometer level, so as to achieve the purpose of real-time locking, and thus achieve the purpose of preventing loosening.

As shown in FIG. 3 and FIG. 6 , an opening 102 is opened along the circumference of the head 10 , wherein the depth of the opening 102 is greater than the height of the circlip 9 , and the opening 102 provides accommodation for the circlip 9 Therefore, the circlip 9 is installed in the accommodating space, thereby limiting the slippage of the sliding sleeve 8, improving the reliability of the anti-loosening bolt for adjusting the tooth difference, and further achieving the purpose of anti-loosening.

As shown in FIG. 7 and FIG. 8 , it also includes a positioning structure arranged on the sliding sleeve 8 and the retaining spring 9 . The positioning structure includes: positioning grooves 82 with a plurality of positioning grooves 82 , which are arranged at intervals on the sliding sleeve 8 . Sleeve 8; positioning protrusions 91, with a plurality of them, are arranged on the circlip 9 at intervals, wherein the circlip 9 is a mouthless circlip 9, and the positioning protrusions 91 are arranged on the mouthless circlip 9 close to the sliding sleeve 8. On one side, the positioning protrusion 91 is adapted to be inserted into the positioning groove 82 to limit the rotation of the sliding sleeve 8 relative to the retaining spring 9 .

Specifically, the retaining spring 9 is an elastic member. The number of positioning grooves 82 is twice the number of positioning protrusions 91; in this embodiment, the number of positioning protrusions 91 is 6, and the number of positioning grooves 82 is 12; When the circlip 9 is used, the circlip pliers are inserted into the assembly hole 92 on the circlip 9, and the circlip 9 can be elastically deformed under the action of external force, so that the positioning protrusion 91 moves from one of the positioning grooves 82. The positioning groove 82 and the positioning protrusion 91 are arranged to increase the rotational resistance of the circlip 9 relative to the sliding sleeve 8, thereby preventing the rotation of the circlip 9 from causing slip, increasing reliability.

As an alternative embodiment, the positioning protrusion 91 may also be provided on the sliding sleeve 8 ; the positioning groove 82 may be provided on the retaining spring 9 .

As an alternative embodiment, the circlip 9 can also be an open circlip, and in actual use, the type of the circlip can be selected according to requirements.

The specific installation method: along the extension direction of the bolt 1, the base 2 is sleeved in sequence, and the fixing part 21 is inserted into the installation hole on the required fastening component, and then the bolt 1, the head 10, and the adjuster 3 are inserted in sequence. The first adjustment structure 4 on the adjuster 3 is completely engaged with the second adjustment structure 5 on the base 2; and the sliding sleeve 8 is sleeved on the head 10, so that the third adjustment structure 6 on the other side of the adjuster 3 It is fully engaged and connected with the fourth adjustment structure 7 on the sliding sleeve 8; then insert the circlip 9 into the opening 102 of the head 10, and insert the circlip pliers into the assembly hole 92 to make the positioning convex on the circlip 9 The lifter 91 is rotated from one of the positioning grooves 82 to the adjacent positioning grooves 82, that is, the installation on one side is completed; In the mounting hole on the fixing part, screw the nut 11 in sequence, and sleeve the adjuster 3 on the nut 11, so that the first adjustment structure 4 on the adjuster 3 and the second adjustment structure 5 on the base 2 are completely engaged and connected; And sleeve the sliding sleeve 8 on the nut 11, so that the third adjustment structure 6 on the other side of the adjuster 3 is completely engaged with the fourth adjustment structure 7 on the sliding sleeve 8; then insert the retaining spring 9 into the opening 102 of the nut 11 Then insert the circlip pliers into the assembly hole 92, so that the positioning protrusion 91 on the circlip 9 rotates from one of the positioning grooves to the adjacent positioning grooves, that is, the nut on the other side of the bolt 1 is completed. 11. Installation of base 2, adjuster 3, sliding sleeve 8 and circlip 9.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims

An anti-loosening bolt for adjusting tooth difference, which is characterized in that it comprises a bolt (1) and an anti-rotation structure arranged at least at one end of the bolt (1); ) on the base (2), the adjuster (3), the sliding sleeve (8), the circlip (9) and the head (10);

The base (2) is connected with the fastener to be fastened, the head (10) is connected with the bolt (1), and is inserted into the base (2), suitable for pressing the base (2); The retaining spring (9) connects the head (10) and the sliding sleeve (8) to limit the sliding of the sliding sleeve (8) relative to the head (10);

The base (2) is provided with a plurality of first regulating structures (4), the regulator (3) is provided with a plurality of second regulating structures (5), the first regulating structure (4) and the The second adjusting structures (5) are engaged in one-to-one correspondence; the adjuster (3) is provided with a plurality of third adjusting structures (6), and the sliding sleeve (8) is provided with a plurality of fourth adjusting structures ( 7), the third adjustment structure (6) and the fourth adjustment structure (7) engage in one-to-one correspondence;

The number of the first adjustment structure (4) and the second adjustment structure (5) is different from the number of the third adjustment structure (6) and the fourth adjustment structure (7).
The anti-loosening bolt for tooth difference adjustment according to claim 1, characterized in that, the number of the first adjustment structure (4) and the second adjustment structure (5) is 25, and the third adjustment structure The number of the structure (6) and the fourth adjustment structure (7) is 26.
The anti-loosening bolt for tooth difference adjustment according to claim 2, characterized in that the first adjustment structure (4), the second adjustment structure (5), the third adjustment structure (6), the fourth adjustment structure ( 7) All are right-angled wedge teeth.
The anti-loosening bolt for tooth difference adjustment according to any one of claims 1-3, characterized in that a fixing portion (21) is provided on the side of the base (2) facing away from the adjuster (3). ).
The anti-loosening bolt for adjusting the tooth difference according to claim 4, wherein the cross section of the fixing portion (21) is a rounded rectangle.
The anti-loosening bolt for tooth difference adjustment according to claim 5, further comprising a fifth adjustment structure, the fifth adjustment structure comprising:

At least two protruding parts (81) are arranged at intervals along the inner wall of the sliding sleeve (8);

At least two depressions (101), spaced apart along the circumference of the head (10), and adapted for the protrusions (81) to be inserted in order to restrict the head (10) relative to the head (10) Rotation of the sliding sleeve (8).
The anti-loosening bolt for adjusting the tooth difference according to claim 6, characterized in that the number of the protruding parts (81) and the concave parts (101) is six.
The anti-loosening bolt for adjusting the tooth difference according to any one of claims 1-7, characterized in that an opening (102) is provided along the circumferential direction of the head (10), and the opening (102) is The circlip (9) provides an accommodating space.
The anti-loosening bolt for tooth difference adjustment according to claim 8, further comprising a positioning structure, the positioning structure comprising:

a positioning groove (82), which is provided on one of the sliding sleeve (8) or the circlip (9);

A positioning protrusion (91) is provided on the other of the sliding sleeve (8) or the retaining spring (9), and is suitable for the positioning protrusion (91) to be inserted into the positioning groove (82) ) to limit the rotation of the sliding sleeve (8) relative to the retaining spring (9).
The anti-loosening bolt for adjusting the tooth difference according to claim 1, wherein the retaining spring (9) is an elastic member.