Bearing anti-loosening structure for screw compressor

Abstract

The utility model relates to the technical field of screw compressors, in particular to a bearing anti-loosening structure for a screw compressor, which comprises a support tube, a bottom ring, a top ring, a bearing body and a clamping piece, the bottom ring is arranged below the support tube, and the clamping piece comprises a central tube, a ball, an elastic piece and a lifting ring. A plurality of groups of movable holes are formed in the side wall of the center pipe, the balls are arranged in the movable holes, openings of the movable holes are large in outside and small in inside, the center pipe is sleeved with the elastic piece, and the upper end and the lower end of the elastic piece are connected with the lifting ring and the bottom ring respectively. The supporting pipe is fixed to the corresponding position of the screw compressor to provide stable supporting for the bearing, the bearing inner ring is connected with the shaft, under supporting of the bottom ring, the spring piece abuts against the balls through the lifting ring to clamp and assemble the bearing outer ring, use is convenient, the lifting ring is limited in cooperation with a plurality of sets of bolts, and the clamping stability of equipment is guaranteed; and the bearing is prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of screw compressors, in particular to a bearing anti-loosening structure for screw compressors. Background Art

[0002] Continuous vibration during the operation of the screw compressor may affect the bearing locking components and eventually cause the bearing to loosen. Loose bearings will increase the friction between the shaft and the bearing, which may cause damage to the bearing and shaft and increase energy consumption. Loose bearings will cause abnormal noise when the compressor is running, affecting the normal operation of the equipment and may interfere with the environment around the equipment. Loose bearings may cause the shaft to shift and cause axis asymmetry, thereby affecting the normal operation of the screw compressor and even causing the equipment to vibrate more. Therefore, a bearing anti-loosening device for a screw compressor is needed to ensure the stability of the bearing. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a bearing anti-loosening structure for a screw compressor.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing anti-loosening structure for a screw compressor, comprising a support tube, a bottom ring, a top ring, a bearing body and a clamping piece, wherein a bottom ring is arranged below the support tube, and the clamping piece comprises a center tube, a ball, an elastic piece and a lifting ring, a side wall of the center tube is provided with a plurality of groups of movable holes, and the balls are arranged in the movable holes, the openings of the movable holes are larger outside and smaller inside, the elastic piece is sleeved on the center tube, and the upper and lower ends of the elastic piece are respectively connected to the lifting ring and the bottom ring, the lifting ring is slidably connected to the center tube, the lifting ring is arranged between the ball and the bottom ring, the center tube is also provided with a top ring for preventing the ball from falling, the top ring is provided with a protective groove matched with the ball, and the outer wall of the bearing body is matched with the inner wall of the center tube.

[0007] In order to ensure the stability of the connection between the bearing body and the center tube, the utility model is improved in that the outer wall of the bearing body is provided with a limiting groove matched with the ball.

[0008] Preferably, the lifting ring is provided with a chamfer on one side close to the central tube.

[0009] In order to further clamp and fix the bearing body, the utility model is improved in that bolts are further arranged on the bottom ring, and the bolts penetrate the bottom ring and contact the lifting ring.

[0010] Preferably, the bolts are arranged in several groups evenly.

[0011] Preferably, the lifting ring is also provided with an unlocking rod passing through the bottom ring.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a bearing anti-loosening structure for a screw compressor, which has the following beneficial effects:

[0014] The anti-loosening structure of the bearing used for the screw compressor has a support pipe fixed at a corresponding position of the screw compressor to provide stable support for the bearing, the inner ring of the bearing is connected to the shaft, and under the support of the bottom ring, the spring part clamps the outer ring of the bearing against the ball through the lifting ring to assemble it, which is easy to use, and the lifting ring is limited by a plurality of sets of bolts to ensure the stability of the equipment clamping and prevent the bearing from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a bottom view schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structural bearing body of the utility model;

[0018] Figure 4 It is a partial explosion schematic diagram of the structure of the utility model.

[0019] In the figure: 1. support tube; 2. bottom ring; 3. top ring; 4. bearing body; 5. center tube; 6. ball; 7. elastic part; 8. lifting ring; 9. bolt; 10. unlocking rod. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4, a bearing anti-loosening structure for a screw compressor, comprising a support tube 1, a bottom ring 2, a top ring 3, a bearing body 4 and a clamping member, wherein a bottom ring 2 is arranged below the support tube 1, and the clamping member comprises a center tube 5, a ball 6, an elastic member 7 and a lifting ring 8, a side wall of the center tube 5 is provided with a plurality of groups of movable holes, each of which is provided with the ball 6, the opening of the movable hole is larger outside and smaller inside, the elastic member 7 is sleeved on the center tube 5, the upper and lower ends of the elastic member 7 are respectively connected with the lifting ring 8 and the bottom ring 2, the lifting ring 8 is slidably connected with the center tube 5, the lifting ring 8 is arranged between the ball 6 and the bottom ring 2, the center tube 5 is also provided with a top ring 3 for preventing the ball 6 from falling, the top ring 3 is provided with a protective groove matched with the ball 6, and the outer wall of the bearing body 4 is matched with the inner wall of the center tube 5.

[0022] In this embodiment, the support tube 1 is fixed at the corresponding position of the screw compressor to provide stable support for the bearing, and the inner ring of the bearing is connected to the shaft. Initially, the elastic member 7 is in a compressed state, and the ball 6 does not partially contact the bearing body 4. Under the limit of the top ring 3, the ball 6 does not slip from the movable hole. The bearing body 4 is inserted into the center tube 5. The bottom ring 2 under the support tube 1 provides stable support for the elastic member 7. The elastic member 7 is in an extended state. At this time, the lifting ring 8 presses against the ball 6, so that the ball 6 clamps the outer ring of the bearing to ensure the stability of its assembly.

[0023] During actual use, in order to ensure that the outer ring of the bearing body 4 does not rotate, in this embodiment, the outer wall of the bearing body 4 is provided with a limit groove adapted to the ball 6, and the upper and lower sides of the limit groove are asymmetrical, which has an anti-mistake effect, so as to assemble the inner ring of the bearing with a corresponding keyway.

[0024] In this embodiment, the lifting ring 8 is provided with a chamfered surface on one side close to the central tube 5 , so that the lifting ring 8 can contact the ball 6 more smoothly, thereby ensuring its stability in use.

[0025] During actual use, the equipment may be easily mis-locked due to vibration. For this reason, bolts 9 are further provided on the bottom ring 2. The bolts 9 pass through the bottom ring 2 and contact the lifting ring 8. The bolts 9 are arranged in several groups and are evenly arranged to ensure the stability of the support for the lifting ring 8 and prevent the clamping part from loosening. The lifting ring 8 is also provided with an unlocking rod 10 that passes through the bottom ring 2, so that the elastic member 7 can be squeezed after removing several groups of bolts 9.

[0026] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0027] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0028] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing anti-loosening structure for a screw compressor, comprising a support tube (1), a bottom ring (2), a top ring (3), a bearing body (4) and a clamping member, characterized in that: A bottom ring (2) is arranged below the support tube (1); the clamping member comprises a center tube (5), a ball (6), an elastic member (7) and a lifting ring (8); a plurality of groups of movable holes are arranged on the side wall of the center tube (5); the ball (6) is arranged in each of the movable holes; the opening of the movable hole is larger outside and smaller inside; the elastic member (7) is sleeved on the center tube (5); the upper and lower ends of the elastic member (7) are respectively connected to the lifting ring (8) and the bottom ring (2); the lifting ring (8) is slidably connected to the center tube (5); the lifting ring (8) is arranged between the ball (6) and the bottom ring (2); the center tube (5) is also provided with a top ring (3) for preventing the ball (6) from falling; the top ring (3) is provided with a protective groove matched with the ball (6); the outer wall of the bearing body (4) is matched with the inner wall of the center tube (5).

2. The anti-loosening structure of a bearing for a screw compressor according to claim 1, characterized in that: The outer wall of the bearing body (4) is provided with a limiting groove matched with the ball (6).

3. The anti-loosening structure of a bearing for a screw compressor according to claim 2, characterized in that: The lifting ring (8) is provided with a chamfer on one side close to the central tube (5).

4. The anti-loosening structure of a bearing for a screw compressor according to claim 3, characterized in that: The bottom ring (2) is also provided with a bolt (9), and the bolt (9) passes through the bottom ring (2) and contacts the lifting ring (8).

5. The anti-loosening structure of a bearing for a screw compressor according to claim 4, characterized in that: The bolts (9) are arranged in a plurality of groups and are evenly spaced.

6. The anti-loosening structure of a bearing for a screw compressor according to claim 5, characterized in that: The lifting ring (8) is also provided with an unlocking rod (10) that passes through the bottom ring (2).

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