Moment balance backstop

Abstract

The utility model discloses a moment balance backstop. The torque balance backstop comprises a friction assembly and a torque balance assembly, the inner ring is used for being connected with a first external device; the anti-reversion assembly is arranged outside the inner ring in a sleeving manner; and the fixing assembly is in contact with the anti-reverse-rotation assembly through the friction assembly, and when the force applied to the anti-reverse-rotation assembly and provided by a first external device exceeds the friction force, the anti-reverse-rotation assembly and the fixing assembly overcome the friction force and generate relative movement. In the reverse rotation prevention process, once the force applied by reverse rotation exceeds the friction force of the moment balance backstop, the reverse rotation prevention assembly and the fixing assembly can overcome the friction force and generate relative movement; therefore, the moment balance backstop is prevented from being damaged due to the fact that the moment balance backstop bears force exceeding the bearable range.

Description

TECHNICAL FIELD

[0001] The utility model relates to a torque balance check stopper. BACKGROUND

[0002] Check stopper is a safety device on the belt conveyor, with the development of industry, the carrying capacity of belt conveyor is also increasing. Belt conveyor drives the whole belt conveyor through the driving drum, when the conveyor is far away or the carrying capacity is large, one driving drum cannot drive the whole belt conveyor, so multiple driving drums, i.e. multiple point driving, are needed. When multiple driving drums are set, the selection and installation of check stopper also involve multiple points, because even if the check stopper has enough capacity, a single drum shaft or conveyor belt can also meet the requirements.

[0003] The multiple point installation of general check stopper includes that one check stopper is installed at each end of one drum, or one check stopper is installed on each drum in multiple driving drums. Thus, a problem occurs, i.e. multiple check stoppers cannot guarantee synchronous force bearing and uniform force bearing of multiple check stoppers when playing the check stopper role, resulting in damage of check stopper.

[0004] For example, in actual work, assuming that two check stoppers are set at different positions, when the drum is ready to reverse rotation, one check stopper A has provided a rotation preventing force to the drum to prevent the drum from reversing rotation, and the other check stopper B may not provide a rotation preventing force, at this time, the force of drum reverse rotation needs to be completely borne by check stopper B, assuming that check stopper B and check stopper A can bear a maximum force of 50N.m, in an ideal state, theoretically, the drum reverse rotation can be prevented before the force of drum reverse rotation reaches 100N.m, but due to uneven force bearing, the force of drum reverse rotation may be only 60N.m, and the force is completely borne by check stopper A, which may cause damage of check stopper A.

[0005] The current solution to this problem is to increase the selection coefficient, for example, two check stoppers are needed, and the total check torque is 100N.m, but two check stoppers with a torque of 50N.m are not selected in actual use, but two check stoppers with a torque of 60N.m or even higher are selected, which often leads to selection of a larger model in reality, resulting in increased use cost.

[0006] Therefore, a high elastic coupling is provided by those skilled in the art to solve the problems in the above background. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at solving the defects in the prior art and provides a high elastic coupling.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A torque balancing backstop, the torque balancing backstop comprising:

[0010] Friction components;

[0011] Inner ring, the inner ring being used for connection with a first external device;

[0012] An anti-reverse component, which is sleeved on the outside of the inner ring;

[0013] A fixing component is in contact with the anti-reverse component through the friction component. When the force provided by the first external device to the anti-reverse component exceeds the friction force, the anti-reverse component and the fixing component overcome the friction force and generate relative motion.

[0014] Optionally, the anti-reverse component includes:

[0015] First side panel

[0016] The second side plate is disposed opposite to the first side plate;

[0017] An outer ring is disposed between the first side plate and the second side plate, and an accommodating space is formed between the first side plate, the second side plate, the outer ring, and the inner ring;

[0018] The anti-reverse component is disposed within the receiving space; wherein...

[0019] The first side plate or the second side plate is in contact with the fixing component through the friction component;

[0020] When the first external device rotates in the first direction, the inner ring (1) moves with the first external device;

[0021] When the first external device rotates in a second direction opposite to the first direction, the anti-reverse component, after being subjected to the force transmitted by the inner ring, transmits the force to the fixing component through the friction component.

[0022] Optionally, the fixing component includes:

[0023] A first clamping plate, which is sleeved on the outside of the outer ring;

[0024] The second clamping plate is sleeved on the outside of the inner ring. The first clamping plate and the second clamping plate are arranged opposite to each other. One of the first side plates or the second side plate is in contact with the fixing component through the friction component and is arranged between the first clamping plate and the second clamping plate. The second clamping plate is partially arranged in the fixed stop groove.

[0025] A friction adjustment device is provided for adjusting the friction between the fixing component and the anti-reverse component.

[0026] Optionally, the friction assembly includes a first friction plate group, the first friction plate group including at least one first friction plate, one side of each first friction plate contacting the first clamping plate, and the other side contacting one of the first side plates or the second side plate disposed between the first clamping plate and the second clamping plate.

[0027] Optionally, the friction assembly includes a second friction plate group, the second friction plate group including at least one second friction plate, one side of each second friction plate contacting the second clamping plate, and the other side contacting one of the first side plates or the second side plates disposed between the first clamping plate and the second clamping plate.

[0028] Optionally, the friction adjustment device includes:

[0029] A bolt is used to connect the first clamping plate and the second clamping plate, and one end of the bolt is provided with an external thread.

[0030] A nut having internal threads, used to connect to the bolt by tightening the threads;

[0031] A compression spring assembly, wherein the compression spring assembly is disposed on the bolt and is compressed by the nut to have a compression amount; wherein...

[0032] The friction between the fixing component and the anti-reverse component is adjusted by adjusting the compression amount of the compression spring assembly.

[0033] Optionally, the torque balancing backstop further includes:

[0034] A roller is disposed on the portion of the bolt located between the first clamping plate and the second clamping plate, and the roller makes contact with one of the first side plates or the second side plate located between the first clamping plate and the second clamping plate.

[0035] Optionally, the second clamping plate is provided with a plurality of connection holes for connecting to a second external device.

[0036] Optionally, the compression spring assembly includes:

[0037] A spring assembly, one end of which contacts the second clamping plate;

[0038] A washer, the number of which is at least one, the washer being sleeved on the outside of the spring assembly, and one side of the washer contacting the second clamping plate;

[0039] A spring sleeve, comprising a support leg and a spring sleeve body, wherein the spring sleeve body is provided with a spring sleeve through hole, through which a bolt is disposed, one end of the support leg contacts a washer and the other end is connected to the spring sleeve body, one side of the spring sleeve body contacts a spring assembly and the other side contacts a nut, the nut being used to tighten the spring sleeve.

[0040] Optionally, a semi-open roller groove is provided on the inner ring of the second clamping plate;

[0041] The torque balancing backstop further includes rollers disposed within the semi-open roller grooves and in contact with the outer wall of the inner ring.

[0042] This utility model has the following beneficial effects:

[0043] In the process of preventing reverse rotation, if the force applied by the reverse rotation exceeds the frictional force of the torque balance backstop of this application, the anti-reverse component and the fixing component of this application can overcome the frictional force and generate relative movement, thereby preventing the torque balance backstop of this application from being damaged by a force exceeding the tolerable range. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure of the torque balancing backstop in the first embodiment of this application;

[0045] Figure 2 This is a schematic diagram of the overall structure of the torque balancing backstop installed on the drum in the first embodiment of this application.

[0046] Figure 3 This is a schematic diagram of the overall structure of the torque balancing backstop in the second embodiment of this application.

[0047] Legend:

[0048] 1. Inner ring; 2. First side plate; 3. Second side plate; 4. Outer ring; 5. Wedge body; 6. First clamping plate; 7. Second clamping plate; 8. First friction plate; 9. Second friction plate; 10. Bolt; 11. Nut; 12. Roller; 13. Spring body; 14. Spring sleeve; 141. Support leg; 142. Spring sleeve body. Detailed Implementation

[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of this application, it should be noted that the terminology used herein is only for describing specific implementations and is not intended to limit the exemplary implementations according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those of ordinary skill in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings indicate similar items, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0050] like Figure 1 The torque balance backstop shown includes a friction assembly, an inner ring 1, an anti-reverse assembly, and a fixing assembly. The inner ring 1 is used to connect to a first external device. The anti-reverse assembly is sleeved on the outside of the inner ring. The fixing assembly contacts the anti-reverse assembly through the friction assembly. When the force provided by the first external device to the anti-reverse assembly exceeds the frictional force, the anti-reverse assembly and the fixing assembly overcome the frictional force and generate relative motion.

[0051] In one embodiment, the fixing component is fitted onto the outside of the inner ring 1.

[0052] In the process of preventing reverse rotation, if the force applied by the reverse rotation exceeds the frictional force of the torque balance backstop of this application, the anti-reverse component and the fixing component of this application can overcome the frictional force and generate relative movement, thereby preventing the torque balance backstop of this application from being damaged by a force exceeding the tolerable range.

[0053] See Figure 1 In this embodiment, the anti-reverse assembly includes a first side plate 2, a second side plate 3, an outer ring 4, and wedges 5. The first side plate 2 is sleeved on the outside of the inner ring 1; the second side plate 3 is disposed opposite to the first side plate 2; the outer ring 4 is disposed between the first side plate 2 and the second side plate 3, and a receiving space is formed between the first side plate 2, the second side plate 3, the outer ring 4, and the inner ring 1; there are multiple wedges 5, each disposed within the receiving space; wherein,

[0054] The first side plate 2 or the second side plate 3 is in contact with the fixing component through the friction component;

[0055] When the first external device rotates in the first direction, the inner ring 1 moves in tandem with the first external device.

[0056] When the first external device rotates in a second direction opposite to the first direction, the anti-reverse component, after being subjected to the force transmitted by the inner ring, transmits the force to the fixing component through the friction component.

[0057] In one embodiment, the second side plate 3 is fitted outside the inner ring 1.

[0058] In this embodiment, both the first side plate and the second side plate are annular plates. Within the accommodating space formed by the first side plate 2, the second side plate 3, the outer ring 4, and the inner ring 1, the wedges can be evenly distributed along the circumferential direction.

[0059] In this embodiment, the fixing assembly includes a first clamping plate 6, a second clamping plate 7, and a friction adjustment device, wherein...

[0060] The first clamping plate 6 is fitted onto the outside of the outer ring 4;

[0061] The second clamping plate 7 is sleeved on the outside of the inner ring 1. The first clamping plate 6 and the second clamping plate 7 are arranged opposite to each other. One of the first side plate 2 or the second side plate 3 is arranged between the first clamping plate 6 and the second clamping plate 7 through the friction assembly. The second clamping plate 7 is partially arranged in the fixed stop groove.

[0062] The friction adjustment device is used to adjust the friction between the fixing component and the anti-reverse component.

[0063] In this embodiment, the first clamping plate and the second clamping plate are also annular plates.

[0064] In this embodiment, the number of friction components can also be set as needed.

[0065] In this embodiment, the number of friction components is the same as the number of friction force adjustment devices.

[0066] See Figure 1 In this embodiment, each friction assembly includes a first friction plate group and a second friction plate group. It is understood that in other embodiments, only the first friction plate group or the second friction plate group may be provided.

[0067] In this embodiment, the first friction plate group includes at least one first friction plate 8, one side of each first friction plate 8 is in contact with the first clamping plate 6, and the other side is in contact with one of the first side plates 2 or the second side plates 3 disposed between the first clamping plate and the second clamping plate 7.

[0068] See Figure 1 In this embodiment, the side plate disposed between the first clamping plate and the second clamping plate is the second side plate 3. It can be understood that in other embodiments, the side plate disposed between the first clamping plate and the second clamping plate is the first side plate.

[0069] In this embodiment, the radial dimension of one of the first side plate and the second side plate located between the first clamping plate and the second clamping plate is larger than that of the other. For example, in Figure 1 In the middle, the radial dimension of the second side plate is larger than that of the first side plate.

[0070] In this embodiment, the second friction plate group includes at least one second friction plate 9, one side of each second friction plate 9 is in contact with the second clamping plate 7, and the other side is in contact with one of the first side plates 2 or the second side plates 3 disposed between the first clamping plate 6 and the second clamping plate 7.

[0071] See Figure 1 In this embodiment, the outer ring of the second side plate is provided with grooves on both sides, the first friction piece is provided in the groove on one side and one side of the first friction piece is attached to the second side plate, and the other side is attached to the first clamping plate.

[0072] See Figure 1 In this embodiment, the second friction pad is disposed in the groove portion on the other side, and one side of the second friction pad is attached to the second side plate, while the other side is attached to the first clamping plate.

[0073] See Figure 1 In this embodiment, the friction adjustment device includes a bolt 10, a nut 11, and a compression spring assembly. The first clamping plate 6 and the second clamping plate 7 are connected by the bolt 10, one end of which is provided with an external thread. The nut 11 is provided with an internal thread and is used to connect to the bolt 10 by tightening the thread. The compression spring assembly is disposed on the bolt and is compressed by the nut to have a compression amount. The friction between the fixing component and the anti-reverse component is adjusted by adjusting the compression amount of the compression spring assembly.

[0074] See Figure 1 In this embodiment, the torque balancing stopper further includes a roller 12, which is disposed on the portion of the bolt 10 located between the first clamping plate 6 and the second clamping plate 7. The roller 12 makes contact with one of the first side plates 2 or the second side plate 3 located between the first clamping plate 6 and the second clamping plate 7.

[0075] In this embodiment, the roller 12 is capable of rolling on the bolt 10. In this way, the radial position of the fixing component can be maintained when the anti-reverse assembly overcomes the frictional force and generates relative movement with the fixing component.

[0076] In this embodiment, the rollers of this application are used to play a guiding role. Specifically, when the anti-reverse assembly and the fixed assembly overcome the friction and generate relative movement, in order to prevent the relative movement between the anti-reverse assembly and the fixed assembly from generating axial displacement, the rollers and the outer circle of the second side plate are subjected to rolling friction, which can play a role in preventing the second side plate from moving axially.

[0077] In this embodiment, the second clamping plate is provided with a plurality of connection holes, which are used to connect to a second external device.

[0078] In practical applications, such as on permanent magnet drums, the second clamping plate is fixedly connected to the side plate of the drum through connecting holes, and the inner ring is mounted on the drum shaft. During normal operation, the rotation of the drum drives the second clamping plate to rotate, and the second clamping plate drives the outer ring of the backstop to rotate freely through friction plates. When backstop is required, the outer ring rotates in the opposite direction relative to the second clamping plate. At this time, the outer ring is wedged tightly with the inner ring through the wedge engagement body to achieve backstop.

[0079] See Figure 1 In this embodiment, the compression spring assembly includes a spring group 13, a washer, and a spring sleeve 14. In this embodiment, the spring group includes multiple disc springs; the number of washers is at least one, and the washer is sleeved on the outside of the spring group 13, with one side of the washer contacting the second clamping plate 7; the spring sleeve 14 includes a support leg 141 and a spring sleeve body 142, the spring sleeve body 142 is provided with a spring sleeve through hole, the bolt is provided through the spring sleeve through hole, one end of the support leg 141 contacts the washer, and the other end is connected to the spring sleeve body, one side of the spring sleeve body 142 contacts the spring group, and the other side contacts the nut, the nut 11 is used to press the spring sleeve 14.

[0080] In this embodiment, the number of shims can be set as needed, and by setting different numbers of shims, the compression amount can be adjusted by increasing or decreasing the number of shims when tightening the nut.

[0081] In this embodiment, multiple reinforcing ribs are provided on the second clamping plate. By providing reinforcing ribs, the second clamping plate can be prevented from bending under stress.

[0082] See Figure 1 In this embodiment, the spring sleeve and nut are positioned near the second clamping plate of the bolt. It can be understood that they can also be positioned near the first clamping plate of the bolt.

[0083] See Figure 3 ,exist Figure 3 In the embodiment shown, a semi-open roller groove is provided on the inner ring of the second clamping plate.

[0084] The torque balancing backstop further includes a roller 12, which is disposed in a semi-open roller groove and contacts the outer wall of the inner ring.

[0085] In this embodiment, the number of semi-open roller grooves on the inner ring of the second clamping plate can be multiple, with one semi-open roller groove used to accommodate one roller.

[0086] In this way, when there is relative rotation between the second clamping plate and the inner ring, the rollers roll, thereby preventing the second clamping plate from moving axially when there is relative displacement between the inner ring and the second clamping plate.

[0087] In another alternative embodiment, a bearing groove is provided on the inner ring of the second clamping plate. The torque balancing backstop of this application further includes a bearing, which is disposed in the bearing groove. The inner ring of the bearing is sleeved on the inner ring 1, and the outer ring of the bearing is connected to the second clamping plate.

[0088] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A torque balancing check valve, characterized in that, The torque balancing check device includes: Friction components; Inner ring (1), the inner ring (1) is used to connect to a first external device; An anti-reverse component, which is sleeved on the outside of the inner ring; A fixing component is in contact with the anti-reverse component through the friction component. When the force provided by the first external device to the anti-reverse component exceeds the friction force, the anti-reverse component and the fixing component overcome the friction force and generate relative motion.

2. The torque balancing check valve as described in claim 1, characterized in that, The anti-reverse component includes: First side panel (2) The second side plate (3) is disposed opposite to the first side plate (2); The outer ring (4) is disposed between the first side plate (2) and the second side plate (3), and the first side plate (2), the second side plate (3), the outer ring (4) and the inner ring (1) form an accommodating space; The anti-reverse component (5) is disposed within the receiving space; wherein, The first side plate (2) or the second side plate (3) is in contact with the fixing component through the friction component; When the first external device rotates in the first direction, the inner ring (1) moves with the first external device; When the first external device rotates in a second direction opposite to the first direction, the anti-reverse component, after being subjected to the force transmitted by the inner ring, transmits the force to the fixing component through the friction component.

3. The torque balancing check valve as described in claim 2, characterized in that, The fixing component includes: The first clamping plate (6) is sleeved on the outside of the outer ring (4); The second clamping plate (7) is sleeved on the outside of the inner ring (1). The first clamping plate (6) and the second clamping plate (7) are arranged opposite to each other. One of the first side plate (2) or the second side plate (3) is in contact with the fixing component through the friction component and is arranged between the first clamping plate (6) and the second clamping plate (7). The second clamping plate (7) is partially arranged in the fixed stop groove. A friction adjustment device is provided for adjusting the friction between the fixing component and the anti-reverse component.

4. The torque balancing check valve as described in claim 3, characterized in that, The friction assembly includes a first friction plate group, which includes at least one first friction plate (8). One side of each first friction plate (8) contacts the first clamping plate (6), and the other side contacts one of the first side plate (2) or the second side plate (3) disposed between the first clamping plate and the second clamping plate (7).

5. The torque balancing check valve as described in claim 3, characterized in that, The friction assembly includes a second friction plate group, which includes at least one second friction plate (9). One side of each second friction plate (9) contacts the second clamping plate (7), and the other side contacts one of the first side plate (2) or the second side plate (3) disposed between the first clamping plate (6) and the second clamping plate (7).

6. The torque balancing check valve as described in any one of claims 3 to 5, characterized in that, The friction adjustment device includes: Bolt (10), the first clamping plate (6) and the second clamping plate (7) are connected by the bolt (10), and one end of the bolt (10) is provided with external thread; Nut (11), the nut (11) is provided with internal thread, the nut (11) is used to connect with the bolt (10) by tightening the thread; A compression spring assembly, wherein the compression spring assembly is disposed on the bolt and is compressed by the nut to have a compression amount; wherein... The friction between the fixing component and the anti-reverse component is adjusted by adjusting the compression amount of the compression spring assembly.

7. The torque balancing check valve as described in claim 6, characterized in that, The torque balancing check valve further includes: A roller (12) is disposed on the portion of the bolt (10) located between the first clamping plate (6) and the second clamping plate (7), and the roller (12) makes contact with one of the first side plates (2) or the second side plate (3) located between the first clamping plate (6) and the second clamping plate (7).

8. The torque balancing check valve as described in claim 7, characterized in that, The second clamp is provided with a plurality of connection holes, which are used to connect to a second external device.

9. The torque balancing check valve as described in claim 7, characterized in that, The compression spring assembly includes: A spring assembly (13), one end of which is in contact with the second clamping plate (7); A gasket, the number of which is at least one, the gasket is sleeved on the outside of the spring assembly (13), and one side of the gasket is in contact with the second clamping plate (7); A spring sleeve (14) includes a support leg (141) and a spring sleeve body (142). The spring sleeve body (142) is provided with a spring sleeve through hole. The bolt passes through the spring sleeve through hole. One end of the support leg (141) contacts the washer and the other end is connected to the spring sleeve body. One side of the spring sleeve body (142) contacts the spring assembly and the other side contacts the nut. The nut (11) is used to press the spring sleeve (14).

10. The torque balancing check valve as described in claim 6, characterized in that, The inner ring of the second clamping plate is provided with a semi-open roller groove; The torque balancing backstop further includes a roller (12) disposed in the semi-open roller groove and in contact with the outer wall of the inner ring.

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