Pin coupling rapid to disassemble and assemble and convenient to maintain

Abstract

The utility model discloses a pin coupling capable of being quickly assembled and disassembled and convenient to maintain, which relates to the technical field of pin couplings and comprises a left half coupling, a right half coupling, a plurality of groups of pin holes formed in the left half coupling and nylon pins arranged in the pin holes. A protection mechanism is arranged outside the left half coupling and the right half coupling and comprises a telescopic hose, a left protection shell arranged outside the left half coupling and a right protection shell arranged outside the right half coupling. By means of the designed protection mechanism, the left protection shell, the right protection shell and the rubber sealing ring are tightly attached to the left protection shell and the right protection shell, the probability that dust invades from a large gap between the left coupler and the right coupler is reduced, and the abrasion influence on the inner wall of a pin hole and the inner wall of the right half coupler is reduced; therefore, the transmission performance of the pin coupling is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of pin couplings, specifically a pin coupling that is quick to assemble and disassemble and easy to maintain. Background Technology

[0002] A pin coupling is a mechanical device that connects two shafts via nylon pins. It is used to transmit torque while allowing slight misalignment of the two shafts (deviation compensation). It combines flexible buffering and rigid transmission characteristics. This coupling has a simple structure, is easy to manufacture, and the elastic elements are easy to install, disassemble, and replace without moving the two couplings.

[0003] In existing technologies, under dusty conditions (such as cement plants and mines), the gap between the left and right halves of the pin coupling is relatively large. This allows external dust to easily penetrate the space between the two halves. As the left and right halves rotate, the dust forms abrasive particles between the outer wall of the nylon pin and the inner wall of the pin hole and the right half of the coupling, exacerbating friction and wear. Long-term accumulation can lead to a reduction in the diameter of the nylon pin, even causing wear and recesses, resulting in impact vibration between the left and right halves. This accelerates wear on the pin holes in the coupling. Furthermore, the dust ingress affects the transmission performance of the pin coupling, leading to decreased transmission efficiency and even transmission failure. Therefore, we propose a pin coupling that allows for quick disassembly and convenient maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide a pin coupling that is quick to assemble and disassemble and easy to maintain, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-disassembly and easy-to-maintain pin coupling, comprising a left half coupling, a right half coupling, multiple sets of pin holes opened inside the left half coupling, and nylon pins disposed inside the pin holes. The left and right half couplings are externally provided with protective mechanisms, the protective mechanisms including:

[0006] The system includes a telescopic hose, a left protective shell located outside the left half coupling, and a right protective shell located outside the right half coupling. Rubber sealing rings are fixedly installed on the outer sides of both the left and right protective shells to increase the sealing between the left and right protective shells and the left and right half couplings.

[0007] Preferably, a left ring is fixedly provided on one side of the telescopic hose, and a right ring is fixedly provided on one side of the right protective shell. The right ring is provided with three sets of T-shaped threaded rods, and a spiral ring is connected to the outside of the T-shaped threaded rods by threads.

[0008] Preferably, the left ring has three sets of suspension members on its side, the suspension members including:

[0009] A T-shaped post is fixed to the side of the left ring. Multiple sets of movable rings are slidably arranged on the outside of the T-shaped post. An elastic rope is fixed between the movable rings and the telescopic hose.

[0010] Preferably, the left protective shell and the right protective shell are respectively provided with two sets of connecting parts between them and the left half coupling and the right half coupling. The connecting parts include a fixing plate fixed to the outside of the left protective shell and the right protective shell. The fixing plate is threadedly connected to a stud. The bottom of the stud is provided with a lower sealing bearing. The bottom of the lower sealing bearing is provided with an arc-shaped clamping plate. The top of the stud is fixedly provided with a handle.

[0011] Preferably, a limiting post is fixedly provided at the top of the arc-shaped clamp, and a groove is provided inside the fixing plate for the top of the limiting post to pass through.

[0012] Preferably, the stud is provided with a protective component, which includes an upper dustproof cloth ring and a lower dustproof cloth ring disposed on the outside of the stud, and an upper sealing bearing is sleeved on the outside of the handle.

[0013] Preferably, a movable frame is fixedly provided on the outer wall of the upper sealing bearing, and a square column is fixedly provided on the top of the fixed plate.

[0014] Preferably, both the left and right half couplings are provided with shaft connecting sleeves, both the right and left half couplings are provided with multiple sets of locking bolts, and the left half coupling is provided with a retaining ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) Through the designed protective mechanism, the left protective shell, the right protective shell and the rubber sealing ring are tightly fitted with the left protective shell and the right protective shell, blocking the chance of dust entering from the large gap between the left coupling and the right coupling, reducing the wear effect on the inner wall of the pin hole and the inner wall of the right half coupling, thereby improving the transmission performance of the pin coupling. The tension of the elastic rope in the suspension component pulls the telescopic hose outward, preventing the middle part from drooping and contacting the outer wall of the coupling, reducing the friction loss between the inner wall of the telescopic hose and the outer surface of the coupling, and extending the service life of the telescopic hose.

[0017] (2) The present invention uses a protective component designed to cover the exposed part of the stud with an upper dustproof cloth ring and a lower dustproof cloth ring, preventing external dust from adhering to the outer wall of the stud, reducing the wear effect of dust on the outer wall of the stud and the inner wall of the fixing plate when the stud rotates, thereby improving the stability of the left and right protective shells when they are fixed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the left and right half couplings of this utility model;

[0021] Figure 4 This is an exploded view of the structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the right side view of the left half coupling of this utility model;

[0023] Figure 6 This is a cross-sectional view of the left protective shell of this utility model;

[0024] Figure 7 This is a schematic diagram of the left and right ring structures of this utility model;

[0025] Figure 8 This is a schematic diagram of the fixing plate and arc-shaped clamping plate structure of this utility model;

[0026] Figure 9 This is a schematic cross-sectional view of the upper dustproof cloth ring of this utility model;

[0027] In the diagram: 100, shaft connecting sleeve; 101, left half coupling; 102, right half coupling; 103, retaining ring; 104, nylon pin; 105, locking bolt; 106, pin hole; 200, left protective shell; 201, fixing plate; 202, rubber sealing ring; 203, left ring; 204, right ring; 205, telescopic hose; 206, right protective shell; 207, T-shaped post; 208, arc-shaped clamp; 209, elastic rope; 210, moving ring; 211, lower sealing bearing; 212, limit post; 213, handle; 214, stud; 216, T-shaped threaded rod; 300, square post; 301, upper dustproof cloth ring; 302, lower dustproof cloth ring; 303, moving frame; 304, upper sealing bearing. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Example 1

[0030] Please see Figures 1-7 This utility model provides a technical solution: a quick-disassembly and easy-to-maintain pin coupling, including a left half coupling 101, a right half coupling 102, multiple sets of pin holes 106 opened inside the left half coupling 101, and nylon pins 104 disposed inside the pin holes 106. The nylon pins 104 transfer torque and have the function of mitigating impact and protection during power transmission. Protective mechanisms are provided on the outside of the left half coupling 101 and the right half coupling 102. The protective mechanisms include a telescopic hose 205, a left protective shell 200 disposed outside the left half coupling 101, and a right protective shell 206 disposed outside the right half coupling 102. The telescopic hose 205 can be used to address any issues arising between the left half coupling 101 and the right half coupling 102 during rotation. Even with slight misalignment or slight displacement due to vibration, it will still be in a state of covering the left half coupling 101 and the right half coupling 102, increasing the protection against dust. The left side of the telescopic hose 205 is fixed to the left protective shell 200. Rubber sealing rings 202 are fixedly installed on the outer sides of both the left protective shell 200 and the right protective shell 206 to increase the sealing between the left protective shell 200 and the right protective shell 206 and the left half coupling 101 and the right half coupling 102. The rubber sealing ring 202 located on the left side of the pin coupling can reduce the entry of external dust into the interior of the pin coupling from the gap between the left side of the left protective shell 200 and the left half coupling 101. The rubber sealing ring 202 located on the right side can reduce the entry of external dust into the interior from the gap between the right side of the right protective shell 206 and the right half coupling 102.

[0031] A left ring 203 is fixedly installed on one side of the telescopic hose 205, and a right ring 204 is fixedly installed on one side of the right protective shell 206. Three sets of T-shaped threaded rods 216 are provided on the right ring 204, and the ends of the T-shaped threaded rods 216 pass through the inside of the right ring 204 and the left ring 203. A spiral ring is connected to the outside of the T-shaped threaded rods 216 by threads.

[0032] Example 2

[0033] Please refer to Example 1. Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 9The left ring 203 has three sets of suspension components on its side. The suspension components include a T-shaped post 207 fixed to the side of the left ring 203. Multiple sets of movable rings 210 are slidably arranged on the outside of the T-shaped post 207. A tension rope 209 is fixed between the movable ring 210 and the telescopic hose 205. The tension rope 209 always pulls the telescopic hose 205 outward, preventing the middle part of the telescopic hose 205 from hanging down and contacting the outer wall of the left half coupling 101 and the right half coupling 102. This can reduce the wear caused by the contact between the inner wall of the telescopic hose 205 and the outer wall of the left half coupling 101 and the right half coupling 102.

[0034] Two sets of connecting parts are provided between the left protective shell 200 and the right protective shell 206 and the left half coupling 101 and the right half coupling 102, respectively. The connecting parts include a fixing plate 201 fixed to the outside of the left protective shell 200 and the right protective shell 206. The inside of the fixing plate 201 is connected to a stud 214 by a thread. The bottom of the stud 214 is provided with a lower sealing bearing 211. The bottom of the lower sealing bearing 211 is provided with an arc-shaped clamping plate 208. The top of the stud 214 is fixed with a handle 213.

[0035] The top of the arc-shaped clamp 208 is fixedly provided with a limiting post 212. The inside of the fixing plate 201 is provided with a groove for the top of the limiting post 212 to pass through. When the handle 213 is turned to drive the stud 214 to rotate, it will indirectly drive the limiting post 212 to move up and down in the groove. The inner wall of the arc-shaped clamp 208 is in contact with the outer wall of the left half coupling 101 and the right half coupling 102.

[0036] This utility model, through its designed protective mechanism, ensures that the left protective shell 200, right protective shell 206, and rubber sealing ring 202 are tightly fitted to the left and right protective shells 200 and 206, preventing dust from entering through the large gap between the left half coupling 101 and the right half coupling 102. This reduces wear on the inner wall of the pin hole 106 and the inner wall of the right half coupling 102, thereby improving the transmission performance of the pin coupling. The tension of the elastic rope 209 in the suspension component pulls the telescopic hose 205 outward, preventing its middle part from drooping and contacting the outer wall of the coupling, reducing frictional wear between the inner wall of the telescopic hose 205 and the outer surface of the coupling, and extending the service life of the telescopic hose 205.

[0037] In summary, place the left protective shell 200 onto the appropriate position outside the left half coupling 101. Then, rotate the handles 213 on both sets of fixing plates 201 towards the left half coupling 101, causing the studs 214 to rotate closer to the left half coupling 101. This moves the lower sealing bearing 211 and the arc-shaped clamping plate 208, causing the inner wall of the arc-shaped clamping plate 208 to contact and clamp onto the left half coupling 101, thus fixing the left protective shell 200. Then, install the right protective shell 206 onto the right half coupling 102 using the same method. Next, pull the telescopic hose 205 to the right to unfold it, causing the left ring 203 to move and subsequently engage with the right ring 204. Contact and align, then pass the working end of the T-shaped threaded rod 216 through the right ring 204 and the left ring 203 in sequence. Finally, tighten the spiral ring on the working end of the T-shaped threaded rod 216 to fix the left ring 203 and the right ring 204 together. At this time, the exposed outer parts between the left half coupling 101 and the right half coupling 102 can be covered by the left protective shell 200, the right protective shell 206, and the telescopic hose 205, reducing the chance of external dust entering the interior through the larger gap between the left half coupling 101 and the right half coupling 102, thereby reducing the chance of dust causing wear on the outer wall of the nylon pin 104, the right half coupling 102, and the inner wall of the pin hole 106.

[0038] Example 3

[0039] Please refer to Example 2. Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The stud 214 is externally protected, including an upper dustproof cloth ring 301 and a lower dustproof cloth ring 302 located on the outside of the stud 214. An upper sealing bearing 304 is fitted over the handle 213, and the inner ring of the upper sealing bearing 304 is fixedly connected to the handle 213. (From the attached...) Figure 8 (Looking up) The top of the upper dustproof cloth ring 301 extends to the surface of the upper sealing bearing 304. The two ends of the lower dustproof cloth ring 302 are fixedly connected to the bottom of the fixing plate 201 and the top of the lower sealing bearing 211, respectively. The bottom of the lower dustproof cloth ring 302 is fixedly connected to the outer ring of the lower sealing bearing 211, and the inner ring of the lower sealing bearing 211 is fixedly connected to the arc-shaped clamping plate 208.

[0040] A movable frame 303 is fixedly installed on the outer wall of the upper sealing bearing 304, and a square column 300 is fixedly installed on the top of the fixed plate 201. The movable frame 303 can slide up and down on the square column 300, which can prevent the upper sealing bearing 304 from rotating with the rotation of the handle 213.

[0041] This utility model, through its designed protective components, uses an upper dustproof cloth ring 301 and a lower dustproof cloth ring 302 to cover the exposed part of the stud 214, preventing external dust from adhering to the outer wall of the stud 214. This reduces the wear and tear on the outer wall of the stud 214 and the inner wall of the fixing plate 201 caused by dust when the stud 214 rotates, thereby improving the stability of the left protective shell 200 and the right protective shell 206 when they are fixed.

[0042] In summary, during use, dust can easily adhere to the outside of the stud 214, causing wear on the outer wall of the stud 214 and the inner wall of the fixing plate 201 when the stud 214 is rotated. Protective components are used to prevent this. The upper dustproof cloth ring 301 and the lower dustproof cloth ring 302 cover the exposed parts of the stud 214 above and below the fixing plate 201, respectively, preventing dust from adhering to the outer wall of the stud 214. Furthermore, when the handle 213 is rotated, the upper sealing bearing 304 moves up and down with the stud 214. This causes the upper dustproof cloth ring 301 and the lower dustproof cloth ring 302 to wrinkle and bend, reducing their height or straightening, without affecting the rotation of the stud 214.

[0043] In this embodiment, both the left half coupling 101 and the right half coupling 102 are provided with shaft connecting sleeves 100. The shaft connecting sleeve 100 on the left side is connected to the rotating shaft on the left side of the equipment, and the shaft connecting sleeve 100 on the right side is connected to the rotating shaft on the right side of the equipment, thus realizing the connection between the rotating shafts of the two sets of equipment. Both the right half coupling 102 and the left half coupling 101 are provided with multiple sets of locking bolts 105, and the working ends of the locking bolts 105 extend into the interior of the shaft connecting sleeves 100. The left half coupling 101 is provided with a retaining ring 103. When replacing the nylon pin 104, the retaining ring 103 can be directly removed and replaced without moving other parts, and then locked and fixed. This solves the problem of needing to move other parts (such as the left half coupling 101 and the right half coupling 102) and realign during the maintenance process of replacing the nylon pin 104. The retaining ring 103 is provided with multiple sets of fixing bolts inside, and the working ends of the fixing bolts extend into the interior of the left half coupling 101.

[0044] In summary, when installing the pin coupling, place the left-side shaft connecting sleeve 100 inside the left half coupling 101. Then, on the right side of the left half coupling 101, insert the working ends of multiple sets of locking bolts 105 through the inside of the left half coupling 101 and screw them into the shaft connecting sleeve 100 to complete the installation of the left-side shaft connecting sleeve 100. When installing the right-side shaft connecting sleeve 100 with the right half coupling 102, follow the same procedure. Finally, insert the right ends of the multiple sets of nylon pins 104. The pin 104 is inserted through the inside of the pin hole 106 and contacts the inner wall of the right half coupling 102. Then, the retaining ring 103 is placed on the left side of the left half coupling 101 and blocks the left side of the nylon pin 104. The working end of the fixing bolt passes through the inside of the retaining ring 103 and is screwed into the inside of the left half coupling 101 to complete the installation of the retaining ring 103, thus completing the installation of the pin coupling. When disassembling, the operation is carried out in the reverse order. This also facilitates the quick disassembly and assembly of the pin coupling and makes maintenance easier.

[0045] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A quick disassembly and convenient maintenance pin coupling, comprising a left half coupling (101), a right half coupling (102), a plurality of groups of pin holes (106) opened in the inside of the left half coupling (101), and nylon pins (104) arranged in the inside of the pin holes (106), the outside of the left half coupling (101) and the right half coupling (102) is provided with a protection mechanism, characterized in that, The protection mechanism comprises: The telescopic hose (205), the left protection shell (200) arranged outside the left half shaft (101), and the right protection shell (206) arranged outside the right half shaft (102), the outer side of the left protection shell (200) and the right protection shell (206) are fixedly provided with rubber sealing rings (202), which are used for increasing the sealing between the left protection shell (200) and the right protection shell (206) and the left half shaft (101) and the right half shaft (102).

2. A quick disconnect and easy maintenance pin coupling as claimed in claim 1 wherein: One side of the telescopic hose (205) is fixedly provided with a left ring (203), one side of the right protection shell (206) is fixedly provided with a right ring (204), and three groups of T-shaped threaded rods (216) are arranged on the right ring (204), and the outer side of the T-shaped threaded rod (216) is threadedly connected with a spiral ring.

3. A quick disconnect and easy maintenance pin coupling as claimed in claim 2 wherein: The side surface of the left ring (203) is provided with three groups of suspension pieces, and the suspension piece comprises: A T-shaped column (207) is fixed to the side surface of the left ring (203), and the outer side of the T-shaped column (207) is slidably provided with a plurality of groups of moving rings (210), and the moving ring (210) and the telescopic hose (205) are fixedly provided with an elastic rope (209).

4. A quick disconnect and easy maintenance pin coupling as claimed in claim 1 wherein: Two groups of connecting pieces are arranged between the left protection shell (200) and the right protection shell (206) and the left half shaft (101) and the right half shaft (102), the connecting piece comprises a fixed plate (201) fixed to the outer side of the left protection shell (200) and the right protection shell (206), the inner side of the fixed plate (201) is threadedly connected with a stud (214), the bottom of the stud (214) is provided with a lower sealing bearing (211), the bottom of the lower sealing bearing (211) is provided with an arc-shaped clamping plate (208), and the top of the stud (214) is fixedly provided with a rotating handle (213).

5. A quick disconnect and easy maintenance pin coupling as claimed in claim 4 wherein: The top of the arc-shaped clamping plate (208) is fixedly provided with a limiting column (212), and the inner side of the fixed plate (201) is provided with a groove for the top of the limiting column (212) to pass through.

6. A quick disconnect and easy maintenance pin coupling as claimed in claim 5 wherein: The outer side of the stud (214) is provided with a protection piece, the protection piece comprises an upper dust cloth ring (301) and a lower dust cloth ring (302) arranged on the outer side of the stud (214), and the outer side of the rotating handle (213) is sleeved with an upper sealing bearing (304).

7. A quick disconnect and easy maintenance pin coupling as claimed in claim 6 wherein: The outer wall of the upper sealing bearing (304) is fixedly provided with a moving frame (303), and the top of the fixed plate (201) is fixedly provided with a square column (300).

8. A quick disconnect and easy maintenance pin coupling as claimed in claim 1, wherein: The inner side of the left half shaft (101) and the right half shaft (102) is provided with an axle connecting sleeve (100), the inner side of the right half shaft (102) and the left half shaft (101) is provided with a plurality of groups of locking bolts (105), and the left half shaft (101) is provided with a check ring (103).

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