Speed reducer axle locking device

Abstract

The utility model relates to the field of speed reducers, in particular to a speed reducer axle locking device which comprises a first clamping seat and a second clamping seat which are symmetrically arranged on the two sides of an axle of a speed reducer, clamping rings are arranged on the first clamping seat and the second clamping seat, and an elastic pre-tightening piece exerts elastic pre-tightening force on the first clamping seat and the second clamping seat. The first clamping base and the second clamping base move oppositely, then the axle is pressed and fixed through the two clamping rings, a linear pushing piece enabling the first clamping base and the second clamping base to move oppositely is further arranged on the first clamping base and / or the second clamping base, and the elastic pre-tightening piece and the linear pushing piece are staggered in position. The first clamping base and / or the second clamping base are / is fixed to the speed reducer through fixing pieces. When the speed reducer is shut down, the locking device can lock the wheel shaft, so that the wheel shaft is prevented from being withdrawn.

Description

Technical Field

[0001] The utility model relates to the field of reducers, in particular to a reducer axle locking device. Background Art

[0002] A reducer is an independent component consisting of a gear transmission, a worm transmission, or a gear-worm transmission enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine, and plays the role of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuator. The existing worm gear reducer, as described in patent number "CN220488201U", includes a reducer housing, a support base, an output shaft, and an input shaft, and the output shaft and the input shaft are connected to each other through a transmission assembly. In actual use, when the reducer has been used for too long, the self-locking property of the worm gear inside the reducer decreases due to wear, and the axle may be de-axled when the reducer is shut down, that is, the axle is accidentally reversed due to the decrease in the self-locking property of the worm gear, which poses a safety risk and needs to be solved urgently. Utility Model Content

[0003] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a reducer axle locking device. The utility model can lock the axle when the reducer stops, thereby preventing the axle from being retracted.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A reducer axle locking device comprises a first clamping seat and a second clamping seat symmetrically arranged on both sides of the reducer axle, the first clamping seat and the second clamping seat are both provided with clamping rings, an elastic preload member applies an elastic preload force to the first clamping seat and the second clamping seat so that the axle is pressed and fixed by the two clamping rings after the first clamping seat and the second clamping seat move toward each other, a linear push member is also arranged on the first clamping seat and / or the second clamping seat to make the first clamping seat and the second clamping seat move in opposite directions, the elastic preload member and the linear push member are staggered, and the first clamping seat and / or the second clamping seat are fixed to the reducer by a fixing member.

[0006] As a further solution of the utility model: the elastic preload member includes a guide column, one end of which is fixed to the second clamping seat, the other end of the guide column passes through the first clamping seat and slides with the first clamping seat, a column head is arranged at the end of the guide column away from the second clamping seat, and a preload spring is provided on the outer ring of the guide column, and the two ends of the preload spring are respectively abutted against the column head and the first clamping seat.

[0007] As a further solution of the utility model: the elastic preload members are arranged in two groups and are symmetrically distributed on both sides of the wheel axle.

[0008] As a further solution of the utility model: the clamping ring is semi-ring-shaped, and a positioning convex ring is convexly provided on the outer ring of the clamping ring along the circumferential direction. The clamping ring is engaged with the positioning groove on the corresponding clamping seat through the positioning convex ring.

[0009] As a further solution of the utility model: rubber particles are evenly arranged on the pressing surface of the clamping ring.

[0010] As a further solution of the utility model: the linear pushing member is an adjusting bolt arranged along a direction parallel to the elastic preload member, the adjusting bolt passes through the second holder and cooperates with the second holder thread, and when the adjusting bolt is screwed, a pushing action is generated on the first holder.

[0011] As a further solution of the utility model: two groups of adjusting bolts are arranged and symmetrically distributed on both sides of the wheel axle.

[0012] As a further solution of the utility model: the fixing member includes at least two groups of locking bolts, and the first clamping seat and / or the second clamping seat are fixed to the reducer through the locking bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model adds a wheel axle locking device to the reducer. When the reducer stops, an elastic preload force is applied to the first clamping seat and the second clamping seat through an elastic preload member, so that the two clamping rings press and fix the wheel axle to prevent the wheel axle from retreating. When the wheel axle needs to be unlocked, the adjusting bolt is screwed to make its end abut against the first clamping seat, and the first clamping seat is pushed to make it move back to the second clamping seat, thereby releasing the locking of the wheel axle by the two clamping rings. The structure is simple and the adjustment is rapid. The entire locking process realizes compensation for the force of the reduced self-locking property of the worm gear through the elastic clamping force, thereby achieving a safety effect.

[0015] 2. The utility model connects the two holders through a guide column. Under the elastic force of the preload spring, the first holder and the second holder always have a tendency to move toward each other, thereby generating a stable elastic preload force on the wheel axle.

[0016] 3. The clamping ring of the utility model is engaged with the clamping seat, so it is easy to disassemble. When the clamping ring is worn too much or the diameter of the wheel axle changes, the clamping ring can be replaced in time, and the adaptability is strong. The arrangement of the rubber particles in the inner circle of the clamping ring can effectively increase the contact area between the clamping ring and the wheel axle by squeezing the rubber particles when pressed, so as to increase the friction between the clamping ring and the wheel axle.

[0017] 4. The utility model locks and fixes the wheel axle locking device on the reducer through at least two sets of locking bolts, forming a two-point fixation, avoiding shaking during adjustment and having strong stability; when the reducer works for a long time, it is also convenient to remove the wheel axle locking device directly from the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the clamping ring in the utility model.

[0020] In the figure:

[0021] 1. First holder; 11. Elastic preload member;

[0022] 111. column head; 112. guide column; 113. preload spring;

[0023] 2. Second holder; 21. Adjusting bolt; 22. Locking bolt;

[0024] 3. Snap ring; 31. Positioning cam; 32. Rubber particles; 4. Wheel axle. 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] See also Figures 1-2 In an embodiment of the utility model, a reducer axle locking device includes a first clamping seat 1 and a second clamping seat 2 symmetrically arranged on both sides of the reducer axle 4, wherein the second clamping seat 2 is connected and fixed to the reducer by two sets of locking bolts 22.

[0027] The first card seat 1 is connected and fixed to the second card seat 2 through two sets of elastic preloaded parts 11. The elastic preloaded parts 11 include a guide column 112. The tail end of the guide column 112 is fixed to the second card seat 2. After the column body of the guide column 112 passes through the first card seat 1, the first card seat 1 is slidably matched. The head of the guide column 112 is arranged with a column head 111 whose diameter is larger than that of the guide column 112. A preloaded spring 113 is provided on the outer sleeve of the guide column 112. The two ends of the preloaded spring 113 are respectively in contact with the column head 111 and the first card seat 1.

[0028] The preload spring 113 is a compression spring, which applies a preload force to the first holder 1 toward the second holder 2, so that the first holder 1 slides along the length direction of the guide column 112 and moves toward the second holder 2. The elastic preload members 11 are preferably arranged in two groups, symmetrically arranged on both sides of the axle 4.

[0029] Semicircular installation grooves are provided on the mating surfaces of the first card seat 1 and the second card seat 2, and positioning grooves are also provided on the groove walls along the circumferential direction. The snap ring 3 is detachably installed in the installation grooves of the two card seats. The snap ring 3 is semi-circular, and a positioning convex ring 31 is convexly provided on the outer ring of the snap ring 3 along the circumferential direction. The cross-sectional shape of the positioning convex ring 31 corresponds to the cross-sectional shape of the positioning groove, so that the snap ring 3 is engaged with the corresponding positioning groove of the card seat after rotating the snap ring 3, so as to facilitate the removal and replacement of the snap ring 3.

[0030] For axles 4 of different diameters, snap rings 3 of different sizes can be replaced to optimize the clamping effect. To increase the friction between the snap ring 3 and the axle 4, rubber particles 32 are evenly arranged on the clamping surface of the snap ring 3. The rubber particles 32 are deformed by extrusion to increase the friction between the axle 4.

[0031] In order to facilitate the unlocking of the wheel axle 4, two groups of adjusting bolts 21 arranged in parallel with the guide column 112 are arranged on the second clamping seat 2. The adjusting bolts 21 penetrate the second clamping seat 2 and are threadedly matched with the second clamping seat 2. In the locked state, there is a certain distance between the end of the adjusting bolt 21 and the first clamping seat 1. When the wheel axle 4 needs to be unlocked, the adjusting bolt 21 is screwed so that its end abuts against the first clamping seat 1, and the first clamping seat 1 is pushed so that it moves backwards with the second clamping seat 2, thereby unlocking the wheel axle 4 by the two clamping rings 3. The adjusting bolts 21 are also symmetrically arranged on both sides of the wheel axle 4.

[0032] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0033] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

Claims

1. A reducer axle locking device, characterized in that: The invention comprises a first clamping seat (1) and a second clamping seat (2) symmetrically arranged on both sides of a wheel axle (4) of a reducer, wherein a clamping ring (3) is arranged on the first clamping seat (1) and the second clamping seat (2), and an elastic pre-tightening member (11) applies an elastic pre-tightening force to the first clamping seat (1) and the second clamping seat (2) so that the wheel axle (4) is pressed and fixed by the two clamping rings (3) after the first clamping seat (1) and the second clamping seat (2) move towards each other, and a linear thrust member is also arranged on the first clamping seat (1) and / or the second clamping seat (2) so as to cause the first clamping seat (1) and the second clamping seat (2) to move in opposite directions, and the elastic pre-tightening member (11) and the linear thrust member are staggered in position, and the first clamping seat (1) and / or the second clamping seat (2) are fixed on the reducer by a fixing member.

2. A reducer axle locking device according to claim 1, characterized in that: The elastic preload member (11) comprises a guide column (112), one end of which is fixed to the second clamping seat (2), the other end of which passes through the first clamping seat (1) and then slides with the first clamping seat (1), a column head (111) is arranged at one end of the guide column (112) away from the second clamping seat (2), a preload spring (113) is arranged on the outer ring of the guide column (112), and two ends of the preload spring (113) are respectively in contact with the column head (111) and the first clamping seat (1).

3. A reducer axle locking device according to claim 2, characterized in that: The elastic preload members (11) are arranged in two groups and are symmetrically distributed on both sides of the wheel axle (4).

4. A reducer axle locking device according to any one of claims 1 to 3, characterized in that: The clamping ring (3) is semi-ring-shaped, and a positioning convex ring (31) is convexly provided on the outer ring of the clamping ring (3) along the circumferential direction. The clamping ring (3) is engaged with a positioning groove on a corresponding clamping seat through the positioning convex ring (31).

5. A reducer axle locking device according to claim 4, characterized in that: Rubber particles (32) made of rubber material are evenly arranged on the pressing surface of the clamping ring (3).

6. A reducer axle locking device according to any one of claims 1 to 3, characterized in that: The linear pushing member is an adjusting bolt (21) arranged in a direction parallel to the elastic preload member (11); the adjusting bolt (21) penetrates the second clamping seat (2) and is threadedly engaged with the second clamping seat (2); when the adjusting bolt (21) is screwed, a pushing action is generated on the first clamping seat (1).

7. A reducer axle locking device according to claim 6, characterized in that: There are two groups of adjusting bolts (21) arranged symmetrically on both sides of the wheel axle (4).

8. A reducer axle locking device according to any one of claims 1 to 3, characterized in that: The fixing member comprises at least two groups of locking bolts (22), and the first clamping seat (1) and / or the second clamping seat (2) are fixed on the reducer via the locking bolts (22).

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