Anti-overloading coupler
By using components such as sealing rings, pulling springs and reinforcement strips on the coupling, a complex gap path is formed, which solves the wear problem caused by the entry of air impurities, extends the service life of the coupling and enhances the anti-falling effect.
Patent Information
- Application Number
- CN202323162310.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-23
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-11-23
AI Technical Summary
When the air quality of some couplings is not high, tiny impurities in the air enter the coupling through the gap, increasing friction and wear, and shortening service life.
An anti-overload coupling is designed, using components such as sealing rings, pulling springs, pulling ribs, reinforcement strips and slots to form a complex gap path, and the springs and magnetic suction strips are used to increase the sealing strength and reduce dust entry.
Effectively prevent dust from entering, slow down aging speed, extend the service life of the coupling, and enhance the anti-falling effect.
Smart Images
Figure CN222277283U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of couplings, and specifically relates to an anti-overload coupling. Background Art
[0002] A coupling is a device that connects two shafts or a shaft and a rotating part, rotates together during the transmission of motion and power, and does not disengage under normal circumstances. Sometimes it is also used as a safety device to prevent the connected parts from being subjected to excessive loads, playing the role of overload protection. A coupling with overload protection function is called an anti-overload coupling.
[0003] The anti-overload coupling consists of two parts, left and right. There will be a gap between the two parts after installation. Some couplings are installed exposed to the air. When the surrounding air quality is not high, tiny impurities in the air will enter the gap of the coupling, thereby increasing the friction of the rotating components inside the coupling during rotation, and increasing the speed of wear and aging. Utility Model Content
[0004] The utility model aims to provide an anti-overload coupling, which can prevent tiny impurities in the air from entering the interior of the coupling through the gap, and prevent the wear of dust from affecting the service life of the coupling.
[0005] The technical solutions adopted in this utility are as follows:
[0006] An anti-overload coupling comprises a shell, the surface of the shell is sleeved with an outer ring, both sides of the outer ring are provided with working grooves, the interior of the working groove is sleeved with a sliding ring and slidably connected thereto, the outer side of the sliding ring is fixedly connected with an outer sealing sleeve, the outer side of the outer sealing sleeve is tightly fitted with the shell, the number of the pulling springs is several and evenly distributed inside the working groove, the interior of the pulling spring is sleeved with pulling ribs, and the two sides of the pulling ribs are respectively rollingly connected to the inner wall of the working groove and the sliding ring.
[0007] Both sides of the shell are fixedly connected with reinforcement strips, the inner wall of the outer sealing sleeve is provided with a clamping groove, and the reinforcement strip is clamped inside the clamping groove.
[0008] The technical effects achieved by this utility model are:
[0009] The utility model discloses an anti-overload coupling, wherein a sealing ring with super sealing performance is installed on the surface of the coupling, which can effectively prevent impurities in the air from entering the gap of the coupling, prevent the dust entering from increasing the wear phenomenon, effectively slow down the aging speed, and ensure the service life of the coupling.
[0010] The practical anti-overload coupling can increase the complexity of the gap path by utilizing the cooperation between the reinforcement strip and the slot, thereby achieving a better dust-proof effect, and the clamping connection between the reinforcement strip and the slot can also achieve a certain anti-falling effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a practical Figure 1 A cross-sectional view of
[0013] Figure 3 This is a practical Figure 2 A magnified view of middle;
[0014] Figure 4 This is a practical Figure 2 Enlarged view of B.
[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0016] 1. Shell; 2. Outer ring; 3. Working groove; 4. Sliding ring; 5. Outer sealing sleeve; 6. Pull spring; 7. Pull rib; 8. Reinforcement strip; 9. Slot; 10. Smooth layer; 11. Magnetic strip. DETAILED DESCRIPTION
[0017] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.
[0018] like Figures 1 to 4As shown, an anti-overload coupling comprises a shell 1, which is the shell of an anti-overload coupling commonly used on the market. An outer ring 2 is sleeved on the surface of the shell 1, and the outer ring 2 is sleeved on the gap on the surface of the shell 1, which can be used as a first protective structure. Working grooves 3 are opened on both sides of the outer ring 2, and the working grooves 3 are ring-mounted. A sliding ring 4 is sleeved and slidably connected inside the working groove 3, and the sliding ring 4 and the working groove 3 fit tightly, so as to achieve a good sealing effect. An outer sealing sleeve 5 is fixedly connected to the outer side of the sliding ring 4, and the outer side of the outer sealing sleeve 5 fits tightly with the shell 1. The outer sealing sleeve 5 is made of sealing soft material. The cross-section of the outer sealing sleeve 5 is L-shaped, and the outside of the outer sealing sleeve 5 is clamped on the outer edge of the shell 1. There are several pulling springs 6 and they are evenly distributed inside the working groove 3. The resilience of the pulling spring 6 can be used to apply a retraction force to the outer sealing sleeve 5. Then, the outer sealing sleeve 5 can be driven by the retraction force to fit tightly against the surface of the shell 1, thereby minimizing the width of the gap. The inner sleeve of the pulling spring 6 is provided with a pulling rib 7, and the two sides of the pulling rib 7 are respectively rollingly connected to the inner wall of the working groove 3 and the sliding ring 4. The pulling rib 7 is made of elastic material, which can enhance the strength of the retraction force generated by the pulling spring 6.
[0019] like Figure 4 As shown, reinforcement strips 8 are fixedly connected to both sides of the housing 1 , and a clamping groove 9 is formed on the inner wall of the outer sealing sleeve 5 , and the reinforcement strips 8 are clamped inside the clamping groove 9 .
[0020] like Figure 3 As shown, the inner and outer surfaces of the sliding ring 4 are fixedly connected with a smooth layer 10, and the smooth layer 10 is glazed. The smooth layer 10 and the working groove 3 are interference fit, and the smooth layer 10 can be used to reduce friction and avoid wear of the sliding ring 4 when sliding. At the same time, the interference fit of the smooth layer 10 can ensure the sealing effect.
[0021] like Figure 3 As shown, the connection between the sliding ring 4 and the outer sealing sleeve 5 is T-shaped, and the sliding ring 4 and the outer sealing sleeve 5 can be firmly clamped in the working groove 3 by the T-shaped sliding ring 4 and the outer sealing sleeve 5 to prevent the sliding ring 4 and the outer sealing sleeve 5 from falling off easily.
[0022] like Figure 3 As shown, the pulling rib 7 and the pulling spring 6 are stretchable, and the pulling rib 7 and the pulling spring 6 can be extended. The stretchability of the pulling rib 7 and the pulling spring 6 can be used to adjust the length of the entire sealing ring, thereby meeting the use of different models of housings 1 and increasing the scope of application.
[0023] like Figure 3As shown, the inner wall of the working groove 3 and the surface of the sliding ring 4 are fixedly connected with magnetic strips 11. The number of magnetic strips 11 is several and they are evenly distributed on the inner wall of the working groove 3 and the surface of the sliding ring 4. Two relative magnetic strips 11 attract each other. The suction force of the magnetic strips 11 can increase the retraction force applied to the external sealing sleeve 5, thereby increasing the strength of the fit and seal.
[0024] The working principle of the utility model is as follows: when in use, first open the outer sealing sleeve 5, then put the entire sealing ring on the surface of the shell 1, and make the outer part of the outer sealing sleeve 5 clamped on the outer edge of the shell 1, and then use the retraction force of the pulling rib 7 and the pulling spring 6 to pull the outer sealing sleeve 5 tightly to the surface of the shell 1 through the sliding ring 4 inside the working groove 3, and at the same time, the outer ring 2 will also be in contact with the surface of the shell 1. The tightly fitting outer sealing sleeve 5 can achieve an efficient dustproof sealing effect, avoid dust contact with the coupling, avoid dust entering the gap of the coupling, and avoid dust affecting the life of the coupling.
[0025] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.
Claims
1. An anti-overload coupling, characterized in that: The invention comprises a shell (1), the surface of the shell (1) is sleeved with an outer ring (2), both sides of the outer ring (2) are provided with working grooves (3), the interior of the working groove (3) is sleeved with a sliding ring (4) which is slidably connected, the outer side of the sliding ring (4) is fixedly connected with an outer sealing sleeve (5), the outer side of the outer sealing sleeve (5) is tightly fitted with the shell (1), a plurality of pulling springs (6) are evenly distributed inside the working groove (3), the interior of the pulling spring (6) is sleeved with a pulling rib (7), and the two sides of the pulling rib (7) are respectively rollingly connected with the inner wall of the working groove (3) and the sliding ring (4).
2. The anti-overload coupling according to claim 1, characterized in that: Both sides of the shell (1) are fixedly connected with reinforcement strips (8); the inner wall of the outer sealing sleeve (5) is provided with a clamping groove (9); and the reinforcement strip (8) is clamped inside the clamping groove (9).
3. The anti-overload coupling according to claim 1, characterized in that: The inner and outer surfaces of the sliding ring (4) are fixedly connected with a smooth layer (10), the smooth layer (10) is glazed, and the smooth layer (10) is interference-fitted with the working groove (3).
4. The anti-overload coupling according to claim 1, characterized in that: The connection between the sliding ring (4) and the outer sealing sleeve (5) is in a T shape.
5. The anti-overload coupling according to claim 1, characterized in that: The pulling rib (7) and the pulling spring (6) are stretchable and can extend.
6. The anti-overload coupling according to claim 1, characterized in that: The inner wall of the working groove (3) and the surface of the sliding ring (4) are both fixedly connected with magnetic strips (11), and the number of the magnetic strips (11) is several and they are evenly distributed on the inner wall of the working groove (3) and the surface of the sliding ring (4).