Tooth type coupling limiting clamp spring anti-disengaging device

Abstract

The utility model discloses an anti-disengaging device for a limiting clamp spring of a gear coupling, and belongs to the technical field of rotating mechanical couplings. The tooth type coupler limiting clamp spring anti-disengaging device comprises a clamping base, pin assemblies are arranged on the two sides of the bottom face of the clamping base respectively, and a clamping groove and an ejector pin assembly are arranged on the adjacent sides of the pin assemblies respectively; a groove is formed in one side of the coupler body, a clamping spring is placed in the groove, the outer wall of the clamping spring is attached to the inner wall of the clamping groove, one end of the ejector pin assembly penetrates through the pin assembly and makes contact with one side of the coupler body, and the pin assembly comprises a first corner body and a second corner body. The clamping groove is located on one side of the second corner body, the ejector pin assembly is located on one side of the first corner body, and the pin assembly, the clamping groove and the ejector pin assembly are used in cooperation, so that the anti-disengaging device can effectively limit the clamping spring to the position of the groove in the coupler body.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rotating mechanical couplings, in particular to a tooth type coupling limiting snap spring anti-falling device. BACKGROUND

[0002] Because the load of the unit changes during operation, the required feed water flow is constantly increasing or decreasing, so the speed of the corresponding small machine is also constantly changing, and the speed fluctuates between 2300-4800r / min for a long time. With the continuous reform and change of the power market, the unit deep peak shaving becomes the norm. During the day, the unit participates in deep peak shaving at 30% of the rated load, and at night, it participates in peak shaving and maintains above 80% of the rated load. The frequency of starting and stopping the unit is increasing, so the coupling between the small machine and the feed water pump is subjected to changes in axial force for a long time. During the temporary shutdown of the unit, the limiting snap spring of the coupling falls off many times, and even the coupling between the small machine and the feed water pump falls off, causing the feed water pump to fail to operate normally, which brings great hidden dangers to the safety production of power enterprises. Therefore, it is particularly important to prevent the limiting snap spring from falling off and then prevent the coupling from falling off.

[0003] Currently, when the tooth type coupling is subjected to changes in axial force and collision, the limiting snap spring of the coupling will fall off. After the coupling loses the limiting snap spring, it is easy to cause the coupling to fall off as the speed changes constantly, the feed water pump has no power, and the unit cannot operate normally. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application provides a tooth type coupling limiting snap spring anti-falling device, which locks the snap spring interface with a anti-falling clip to prevent the interface from falling off, ensures that the limiting snap spring of the coupling is in the working position for a long time, avoids the coupling from falling off, and affects the normal operation of the unit.

[0005] To achieve the purpose of the present application, the present application provides the following technical solutions:

[0006] A tooth type coupling limiting snap spring anti-falling device, comprising a clamping seat, the bottom surface of the clamping seat is provided with a pin assembly on both sides, the adjacent side of the pin assembly is provided with a clamping groove and a thimble assembly; a coupling body, a recess is formed in one side of the coupling body, a snap spring is placed in the recess, the outer wall of the snap spring is in close contact with the inner wall of the clamping groove, and one end of the thimble assembly penetrates through the pin assembly and is in contact with one side of the coupling body.

[0007] Further, the pin assembly comprises a first corner body and a second corner body, the clamping groove is located on one side of the second corner body, and the thimble assembly is located on one side of the first corner body.

[0008] The beneficial effect of the further scheme is that the card slot can focus on the positioning of the clamping spring, and the ejector pin assembly can accurately exert pressure on the coupling body, and the two cooperate with each other to play the anti-falling effect, thereby improving the reliability of the device.

[0009] Further, the length of the first corner body is greater than the length of the second corner body.

[0010] The beneficial effect of the further scheme is that the longer first corner body can make the ejector pin assembly more stable during adjustment, can more effectively exert pressure on the coupling body, and can enhance the anti-falling protection effect of the clamping spring, thereby ensuring the normal operation of the coupling under different working conditions.

[0011] Further, the ejector pin assembly comprises a knob, the knob is threadedly connected in the interior of the first corner body, and the knob is connected with a protrusion on the side close to the card slot.

[0012] The beneficial effect of the further scheme is that the distance between the protrusion and the coupling body can be conveniently adjusted by rotating the knob, so that the pressure of the ejector pin on the coupling body can be adjusted. This adjustable design can adapt to the requirements of different types of couplings and different working environments for the anti-falling of the clamping spring of the coupling, thereby improving the universality of the device.

[0013] Further, the protrusion is in the shape of a circular truncated cone, and the material of the protrusion is heat-resistant rubber.

[0014] The beneficial effect of the further scheme is that the contact area with the coupling body is increased, so that the pressure distribution is more uniform, and the coupling body is prevented from being damaged due to excessive local pressure. The material of the protrusion is heat-resistant rubber, which can maintain good performance in a high-temperature environment and continuously play the anti-falling effect.

[0015] Compared with the prior art, the beneficial effect of the utility model is:

[0016] The tooth type coupling limiting clamping spring anti-falling device is used in cooperation with the pin assembly, the card slot and the ejector pin assembly, so that the anti-falling device can effectively limit the clamping spring in the groove in the coupling body. The pin assembly on the two sides of the bottom surface of the card seat is used in cooperation with the card slot and the outer wall of the clamping spring to preliminarily limit the clamping spring. One end of the ejector pin assembly penetrates through the pin assembly and is in contact with the coupling body, so as to further prevent the clamping spring from falling out of the groove in the coupling body due to vibration, stress and the like, thereby ensuring the stable position of the clamping spring during the operation of the tooth type coupling and ensuring the normal operation of the coupling. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a kind of tooth type coupling limiting clamping spring anti-falling device's front perspective view;

[0018] Figure 2 A rear perspective view of the tooth coupling limiting snap spring anti-falling device provided by the utility model;

[0019] Figure 3 A thimble assembly schematic view of the tooth coupling limiting snap spring anti-falling device provided by the utility model;

[0020] Figure 4 An assembly schematic view of the tooth coupling limiting snap spring anti-falling device provided by the utility model.

[0021] In the figure: 100, the card seat; 200, the pin assembly; 2001, the first angle body; 2002, the second angle body; 300, the card slot; 400, the thimble assembly; 4001, the knob; 4002, the protruding block; 500, the coupling main body; 600, the snap spring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features; in the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0024] Embodiment 1

[0025] Please refer to Figures 1-4This utility model provides a technical solution: a toothed coupling limiting snap ring anti-disengagement device, including a retainer 100, pin assemblies 200 are respectively provided on both sides of the bottom surface of the retainer 100, and a groove 300 and a pin assembly 400 are respectively provided on the adjacent side of the pin assembly 200; a coupling body 500, a groove is opened on one side of the coupling body 500, a snap ring 600 is placed inside the groove, the outer wall of the snap ring 600 is in contact with the inner wall of the groove 300, one end of the pin assembly 400 passes through the pin assembly 200 and contacts one side of the coupling body 500. Through the pin assemblies 200 on both sides of the bottom surface of the retainer 100, and through the groove 300 in contact with the outer wall of the snap ring 600, the snap ring 600 can be initially limited. One end of the ejector pin assembly 400 passes through the pin assembly 200 and contacts the coupling body 500, further preventing the snap ring 600 from coming out of the groove in the coupling body 500 due to vibration, force, or other reasons. This ensures that the snap ring 600 is in a stable position during operation of the gear coupling and guarantees the normal operation of the coupling.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 protection scope of the present utility model.

[0027] As an embodiment of this utility model, the pin assembly 200 further includes a first corner body 2001 and a second corner body 2002. The slot 300 is located on one side of the second corner body 2002, and the ejector pin assembly 400 is located on one side of the first corner body 2001. This allows the slot 300 to focus on the positioning of the retaining ring 600, and the ejector pin assembly 400 to accurately apply pressure to the coupling body 500. The two work together to play an anti-disengagement role, improving the reliability of the device. The length of the first corner body 2001 is greater than that of the second corner body 2002. The longer first corner body 2001 makes the ejector pin assembly 400 more stable during adjustment, and can more effectively apply pressure to the coupling body 500, enhancing the anti-disengagement protection effect of the retaining ring 600 and ensuring the normal operation of the coupling under different working conditions.

[0028] As an embodiment of the utility model, further, the thimble assembly 400 includes knob 4001, knob 4001 is screwed in the inside of first angle body 2001, knob 4001 is connected with lug 4002 on the side close to card slot 300, by rotating knob 4001, the distance between lug 4002 and shaft coupling main body 500 can be conveniently adjusted, thereby adjusting the pressure of thimble to shaft coupling main body 500.This adjustable design can adapt to the requirement of different models of shaft coupling and different working environments to shaft coupling lock spring anti-drop, improves the versatility of the device, lug 4002 is in the shape of circular truncated cone, and the material of lug 4002 is heat-resistant rubber, which increases the contact area with shaft coupling main body 500, makes the pressure distribution more uniform, avoids damaging shaft coupling main body 500 due to excessive local pressure.Its material is heat-resistant rubber, on the one hand, it can still maintain good performance in high-temperature environment and continuously play the anti-drop role.

[0029] Specifically, the working principle of the tooth coupling limiting lock spring anti-drop device is as follows: when in use, the card holder 100 is installed in a suitable position, and the pin assembly 200 on the bottom surface of the card holder 100 plays a key role. The pin assembly 200 is composed of a first angle body 2001 and a second angle body 2002. The card slot 300 on one side of the second angle body 2002 is in close contact with the outer wall of the lock spring 600 placed in the groove of the shaft coupling main body 500, thereby achieving preliminary limiting of the lock spring 600 and preventing it from moving horizontally at will. The thimble assembly 400 on the side of the first angle body 2001 has a knob 4001 screwed into the inside of the first angle body 2001. By rotating the knob 4001, the distance between the lug 4002 connected to the side of the first angle body 2001 close to the card slot 300 and the shaft coupling main body 500 can be adjusted, thereby changing the pressure of the thimble on the shaft coupling main body 500. Since the length of the first angle body 2001 is greater than that of the second angle body 2002, it provides a stable adjustment basis for the thimble assembly 400, which can more effectively press the shaft coupling main body 500. The lug 4002, which is in the shape of a circular truncated cone and made of heat-resistant rubber, increases the contact area with the shaft coupling main body 500, uniformly distributes the pressure, and prevents damage to the shaft coupling main body 500, while maintaining its performance in high-temperature environments. The pressure applied by the thimble assembly 400 further limits the displacement of the shaft coupling main body 500, thereby preventing the lock spring 600 from being shaken out of the groove due to vibration or stress, ensuring the stability of the lock spring 600 during the operation of the tooth coupling, and ensuring the normal operation of the shaft coupling.

[0030] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. The present application is not limited to the exact structures described above and shown in the drawings, and the specific implementation of the present application should not be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be considered within the scope of protection of the present application.

Claims

1. A limiting snap ring anti-disengagement device for a gear coupling, characterized in that, include: Card holder (100), with pin assemblies (200) respectively provided on both sides of the bottom surface of the card holder (100), and a card slot (300) and a pin assembly (400) respectively provided on the adjacent side of the pin assembly (200); The coupling body (500) has a groove on one side, and a snap ring (600) is placed inside the groove. The outer wall of the snap ring (600) fits against the inner wall of the snap groove (300). One end of the ejector pin assembly (400) passes through the pin assembly (200) and contacts one side of the coupling body (500).

2. The toothed coupling limiting snap ring anti-disengagement device according to claim 1, characterized in that, The pin assembly (200) includes a first corner body (2001) and a second corner body (2002), the slot (300) is located on one side of the second corner body (2002), and the pin assembly (400) is located on one side of the first corner body (2001).

3. The toothed coupling limiting snap ring anti-disengagement device according to claim 2, characterized in that, The length of the first corner body (2001) is greater than the length of the second corner body (2002).

4. The toothed coupling limiting snap ring anti-disengagement device according to claim 3, characterized in that, The ejector assembly (400) includes a knob (4001) which is threaded into the interior of the first corner body (2001) and has a protrusion (4002) attached to the side of the knob (4001) near the slot (300).

5. The toothed coupling limiting snap ring anti-disengagement device according to claim 4, characterized in that, The bump (4002) is frustum shaped and is made of heat-resistant rubber.

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