Idle wheel with clamp spring structure

Abstract

The utility model relates to the technical field of idle wheels, in particular to an idle wheel with a clamp spring structure, which comprises an idle wheel, fixing grooves are arranged on two sides of the idle wheel, clamping grooves are arranged on the inner sides of the fixing grooves, outer rings are arranged in the fixing grooves, side grooves are arranged on the outer sides of the outer rings close to the edges, large clamp springs are clamped in the clamping grooves, and the large clamp springs are connected with the clamping grooves. A rotating shaft is rotationally connected into the idle wheel, two centrosymmetric positioning grooves are formed in the outer side of the rotating shaft, small clamping springs are connected into the positioning grooves in a clamped mode, threaded grooves are formed in the two ends of the rotating shaft, fastening bolts are connected into the threaded grooves in a threaded mode, and flat gaskets are arranged on the outer sides of the fastening bolts. According to the idle wheel, the fixing groove, the clamping groove, the side edge groove, the outer ring and the large clamping spring are arranged, an anti-falling device can be additionally arranged on the bearing in the idle wheel, after the bearing is installed in the fixing groove, the large clamping spring can be clamped into the clamping groove and the side edge groove, and the situation that the bearing falls off from the fixing groove of the idle wheel, and consequently the idle wheel is loosened is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of idler wheels, in particular to an idler wheel with a clip spring structure. Background Art

[0002] The idler wheel is an important component in the mechanical system. It is mainly used to change the transmission direction, adjust the torque or change the transmission rate. It does not directly drive the mechanical system itself, but improves the working efficiency and stability of the entire system by interacting with the driving wheel and the driven wheel. In some complex mechanical transmission systems, the idler wheel can be used to change the running direction of the transmission belt or chain, thereby making the entire system design more compact and reasonable. The idler wheel is often used as a tensioner to adjust the tension of the transmission belt or chain to ensure smooth transmission without jumping. By reasonably configuring the position and size of the idler wheel, the torque and speed distribution of the transmission system can be adjusted within a certain range. The idler wheel can absorb and reduce vibration and impact in transmission, and improve the stability and service life of the system.

[0003] During the installation and use of the idler wheel, bearings are required. During the use of the idler wheel, the idler wheel may fall off the bearing, affecting the use of the idler wheel. Secondly, due to the lack of an anti-falling device between the idler wheel shaft and the bearing, there is a risk of falling off between the bearing and the idler wheel shaft during operation. Finally, when the bearing runs on the idler wheel shaft, axial movement may occur on the idler wheel, causing the position of the idler wheel to change, affecting the normal operation of the idler wheel. Therefore, an idler wheel with a retaining spring structure is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide an idler wheel with a retaining spring structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An idler wheel with a retaining spring structure comprises an idler wheel, fixing grooves are provided on both sides of the idler wheel, a retaining groove is provided inside the fixing groove, an outer ring is provided inside the fixing groove, a side groove is provided on the outside of the outer ring near the edge, a large retaining spring is clamped inside the retaining groove, a rotating shaft is rotatably connected inside the idler wheel, two centrosymmetrical positioning grooves are provided on the outside of the rotating shaft, a small retaining spring is clamped in the positioning groove, threaded grooves are provided at both ends of the rotating shaft, a fastening bolt is threadedly connected inside the threaded groove, a flat washer is provided on the outside of the fastening bolt, a disc spring is provided on one side of the flat washer, a retaining ring is provided on the outside of the rotating shaft, and a baffle is fixedly connected to one side of the retaining ring.

[0007] Preferably, the distance between the two card slots is equal to the distance between the two positioning slots.

[0008] Preferably, the diameter of the outer ring is smaller than the diameter of the fixing groove, and the outer ring fits tightly in the fixing groove.

[0009] Preferably, the diameter of the flat washer is larger than the diameter of the disc spring, and the disc spring abuts against one side of the flat washer.

[0010] Preferably, the number of the baffle rings and baffle plates are both two, which are symmetrically arranged on both sides of the idler wheel.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, by providing the fixing groove, the clamping groove, the side groove, the outer ring, and the large retaining spring, an anti-dropping device can be added to the bearing in the idler wheel. After the bearing is installed in the fixing groove, the large retaining spring can be clamped into the clamping groove and the side groove to prevent the bearing from falling off from the fixing groove of the idler wheel and causing the idler wheel to loosen;

[0013] 2. In the utility model, the rotating shaft, the positioning groove and the small retaining spring are provided to limit the bearing outside the rotating shaft. The two small retaining springs are clamped in their respective positioning grooves to limit the bearing between the two small retaining springs to prevent the bearing from loosening during operation.

[0014] 3. In the utility model, the threaded groove, fastening bolts, flat washers, disc springs, retaining rings and baffles are arranged to provide axial thrust to the bearing. Disc spring axial thrust devices are arranged on both sides of the bearing. The disc springs squeeze the baffles, and the baffles squeeze the inner ring of the bearing through the retaining rings to provide thrust to the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0017] Figure 3 This is a schematic diagram of the installation of the disc spring structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation of the outer ring structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the structural position of the positioning groove of the utility model;

[0020] Figure 6 This is a schematic diagram of the retaining ring structure of the utility model.

[0021] In the figure: 1. Idle wheel; 2. Fixed groove; 3. Snap groove; 4. Outer ring; 5. Side groove; 6. Large retaining ring; 7. Rotating shaft; 8. Positioning groove; 9. Small retaining ring; 10. Threaded groove; 11. Fastening bolt; 12. Flat washer; 13. Disc spring; 14. Retaining ring; 15. Baffle. DETAILED DESCRIPTION

[0022] 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.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0025] See also Figure 1-6 , the utility model provides a technical solution:

[0026] An idler wheel with a retaining spring structure comprises an idler wheel 1, wherein fixing grooves 2 are provided on both sides of the idler wheel 1, retaining grooves 3 are provided inside the fixing grooves 2, an outer ring 4 is provided inside the fixing grooves 2, a side groove 5 is provided outside the outer ring 4 near the edge, a large retaining spring 6 is clamped inside the retaining grooves 3, a rotating shaft 7 is rotatably connected inside the idler wheel 1, two centrally symmetrical positioning grooves 8 are provided outside the rotating shaft 7, a small retaining spring 9 is clamped inside the positioning grooves 8, threaded grooves 10 are provided at both ends of the rotating shaft 7, a fastening bolt 11 is threadedly connected inside the threaded grooves 10, a flat washer 12 is provided outside the fastening bolt 11, a disc spring 13 is provided on one side of the flat washer 12, a retaining ring 14 is provided outside the rotating shaft 7, and a baffle 15 is fixedly connected to one side of the retaining ring 14.

[0027] The distance between the two slots 3 is equal to the distance between the two positioning slots 8; the diameter of the outer ring 4 is smaller than the diameter of the fixing slot 2, and the outer ring 4 fits tightly in the fixing slot 2; the diameter of the flat washer 12 is larger than the diameter of the disc spring 13, and the disc spring 13 rests on one side of the flat washer 12; there are two retaining rings 14 and two baffles 15, which are symmetrically arranged on both sides of the idler wheel 1.

[0028] Working process: The device is an idler wheel with a retaining spring structure. Two symmetrical fixing grooves 2 are arranged on the outer side of the idler wheel 1. A retaining groove 3 is arranged on the inner side wall of the fixing groove 2. An outer ring 4 is arranged inside the fixing groove 2. A side groove 5 is arranged on the outer side of the outer ring 4 near the edge. A large retaining spring 6 is clamped in the retaining groove 3. A rotating shaft 7 is arranged inside the idler wheel 1. Two symmetrical positioning grooves 8 are arranged on the outer side of the rotating shaft 7. A small retaining spring 9 is clamped in the positioning groove 8 to limit the bearing. Threaded grooves 10 are arranged at both ends of the rotating shaft 7. A fastening bolt 11 is threadedly connected to the inner side of the threaded groove 10. A flat washer 12 is provided on the outer side of 11, a disc spring 13 is provided on one side of the flat washer 12, a baffle 15 is provided on the side of the disc spring 13 away from the flat washer 12, a baffle ring 14 is fixedly connected to the other side of the baffle 15, and the baffle ring 14 is against both sides of the inner ring of the bearing. When installing the idler wheel 1, first clamp the bearing into the appropriate position in the fixed groove 2, the side groove 5 and the clamping groove 3 on the outer side of the outer ring 4 are in the same plane, and the large retaining spring 6 is clamped in the clamping groove 3 and the side groove 5 by a special tool. The large retaining spring 6 can prevent the idler wheel 1 from falling off on the outer side of the bearing. The large retaining spring 6 has a great effect on the idler wheel. 1 plays a role of limiting. Two positioning grooves 8 are provided on the outer side of the rotating shaft 7. After the rotating shaft 7 is installed in the appropriate position inside the bearing, the two positioning grooves 8 are respectively located on both sides of the bearing. The small retaining ring 9 can be clamped in the positioning groove 8 by a special tool. By using the small retaining ring 9, the bearing on the outer side of the rotating shaft 7 can be limited to prevent the bearing from loosening due to axial movement on the outer side of the rotating shaft 7 during operation. After the small retaining ring 9 is installed, the retaining ring 14 is installed on the rotating shaft 7. The retaining ring 14 is against the outer side of the inner ring of the bearing. A baffle 15 is fixedly connected to the side, and a disc spring 13 is provided on the other side of the baffle 15. Thread grooves 10 are provided at both ends of the rotating shaft 7. The fastening bolts 11 pass through the flat washers 12 and are threadedly connected in the thread grooves 10. By adjusting the position of the fastening bolts 11, the flat washers 12 can increase the lateral pressure on the disc springs 13. Under the pressure of the two groups of disc springs 13, the baffles 15 and the retaining rings 14, the bearings can be axially thrust. Moreover, the use of the disc springs 13, the baffles 15 and the retaining rings 14 will not affect the normal operation of the bearings, nor will it affect the normal rotation of the idler wheel 1.

[0029] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0030] Although the 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. An idler wheel with a retaining spring structure, comprising an idler wheel (1), characterized in that: The idler wheel (1) is provided with fixing grooves (2) on both sides, a clamping groove (3) is provided inside the fixing groove (2), an outer ring (4) is provided inside the fixing groove (2), a side groove (5) is provided outside the outer ring (4) near the edge, a large clamping spring (6) is clamped inside the clamping groove (3), a rotating shaft (7) is rotatably connected inside the idler wheel (1), two centrally symmetrical positioning grooves (8) are provided outside the rotating shaft (7), a small clamping spring (9) is clamped inside the positioning groove (8), thread grooves (10) are provided at both ends of the rotating shaft (7), a fastening bolt (11) is threadedly connected inside the thread groove (10), a flat washer (12) is provided outside the fastening bolt (11), a disc spring (13) is provided on one side of the flat washer (12), a retaining ring (14) is provided outside the rotating shaft (7), and a baffle (15) is fixedly connected to one side of the retaining ring (14).

2. The idler wheel with a retaining spring structure according to claim 1, characterized in that: The distance between the two clamping slots (3) is equal to the distance between the two positioning slots (8).

3. The idler wheel with a retaining spring structure according to claim 1, characterized in that: The diameter of the outer ring (4) is smaller than the diameter of the fixing groove (2), and the outer ring (4) fits tightly in the fixing groove (2).

4. The idler wheel with a retaining spring structure according to claim 1, characterized in that: The diameter of the flat washer (12) is greater than the diameter of the disc spring (13), and the disc spring (13) abuts against one side of the flat washer (12).

5. The idler wheel with a retaining spring structure according to claim 1, characterized in that: The number of the baffle rings (14) and baffle plates (15) is two each, and they are symmetrically arranged on both sides of the idler wheel (1).

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