Diaphragm coupling clamping mechanism

Abstract

The invention relates to the technical field of coupler installation, and discloses a diaphragm type coupler clamping mechanism which comprises a coupler body, two threaded sleeves are fixedly connected to the inner wall of the coupler body, and two bolts are arranged on the inner wall of the coupler body. The outer walls of the two bolts are both in threaded connection with the inner walls of the two threaded sleeves, the coupler body is driven to rotate by starting the motor, outward centrifugal force can be generated, at the moment, the multiple balancing weights are influenced by the outward centrifugal force and can move towards the outer wall of the coupler body, and the balancing weight located on the right side is connected with the coupler body through a first connecting rod. The extrusion force is applied to the conical sleeve by utilizing the centrifugal force generated by rotation of the coupling main body, so that the resistance during rotation of the bolt is increased, the anti-loosening capability of the bolt is enhanced, the phenomenon that the bolt is easy to loosen when the coupling main body is in a high-vibration environment is effectively prevented, and the service life of the coupling main body is prolonged. And therefore, the coupling main body stably transmits the rotating force.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a coupling installation, in particular to a diaphragm type coupling clamping mechanism. BACKGROUND

[0002] A coupling refers to a device for connecting two shafts or a shaft and a rotating part, which rotates together in the process of transmitting motion and power and is not disconnected under normal circumstances. Sometimes, the coupling is used as a safety device to prevent the connected machine from bearing excessive load and plays a role in overload protection. The coupling is also called a coupling joint. The coupling is used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. The coupling is usually composed of two halves, which are connected by keys or tight fits, etc. The two halves are fastened on the two shaft ends and then connected through a certain way. The coupling can compensate for the deviation between the two shafts due to manufacturing and installation inaccuracy, deformation during work or thermal expansion, etc. In addition, the coupling can also absorb impact and vibration.

[0003] Among them, the diaphragm type coupling often clamps the transmission shaft through a clamping mechanism. The common clamping method is usually to tighten the bolts to shrink and clamp the transmission shaft through the shaft hole of the coupling. However, when the coupling is applied in a high-vibration environment, such as a pump house with many water pumps and air pumps, the amplitudes generated by multiple pump bodies during operation may be superimposed on each other and transmitted to the coupling at the transmission shaft of the pump body. The coupling bolts may be loose due to the influence of vibration, affecting the stable connection between the coupling and the transmission shaft. SUMMARY

[0004] To solve the above technical problems, the application provides a diaphragm type coupling clamping mechanism, which comprises a coupling main body, two threaded sleeves are fixedly connected to the inner wall of the coupling main body, two bolts are arranged on the inner wall of the coupling main body, and the outer walls of the two bolts are in threaded connection with the inner walls of the two threaded sleeves. A main body mechanism is slidably arranged on the inner wall of the coupling main body and used for abutting the bolt; An extension mechanism is slidably arranged on the inner wall of the coupling main body and used for applying a blocking force to the bolt; A synchronization mechanism is slidably arranged on the inner wall of the coupling main body and used for synchronously moving the extension mechanism; Among them, the operator respectively places the motor output shaft and the transmission shaft of the water pump or the air pump in the shaft holes at the two ends of the coupling main body. After the placement is completed, the operator rotates the bolt by using a torque wrench, so that the bolt spirally moves in the threaded sleeve and drives the conical sleeve to move until the bolt contacts the coupling main body. The operator continues to rotate the bolt, and the shaft hole of the coupling main body is tightened through the fastening force of the bolt, so as to clamp the output shaft and the transmission shaft.

[0005] Preferably, the main body mechanism comprises: The connecting assembly is fixedly arranged at the outer wall of the bolt; The blocking assembly is slidably arranged at the inner wall of the shaft coupling body; Wherein, after the output shaft and the transmission shaft are clamped in the shaft hole of the shaft coupling body, when the water pump or the air pump is running, the shaft coupling body is driven to rotate by starting the motor, and the rotating force of the motor is transmitted to the transmission shaft through the shaft coupling body.

[0006] Preferably, the extension mechanism comprises: The pushing assembly is slidably arranged at the inner wall of the shaft coupling body; The slowing-down assembly is fixedly arranged at the inner wall of the shaft coupling body; Wherein, when the shaft coupling body rotates, the pushing assembly is moved towards the outer wall of the shaft coupling body under the influence of the centrifugal force generated by the shaft coupling body, the pushing assembly drives the blocking assembly to descend and contact the connecting assembly, and the bolt is blocked.

[0007] Preferably, the synchronization mechanism comprises: The sliding assembly is slidably arranged at the inner wall of the shaft coupling body; The pulling assembly is slidably arranged at the inner wall of the shaft coupling body; Wherein, when the pushing assembly moves, the pulling assembly moves, and the sliding assembly moves under the action of the pulling assembly.

[0008] Preferably, the connecting assembly comprises a conical sleeve fixedly connected to the outer wall of the bolt, the outer walls of the two conical sleeves are slidably connected to the inner wall of the shaft coupling body, and two square grooves are formed in the inner wall of the shaft coupling body.

[0009] Preferably, the blocking assembly comprises a conical block slidably connected to the inner wall of the square groove, and the shaft coupling body is provided with two connecting rods, and the sides of the two conical blocks away from the conical sleeves are fixedly connected to the sides of the two connecting rods close to the conical sleeves. Wherein, when the bolt is rotated to tighten the shaft hole of the shaft coupling body, the conical sleeve is moved away from the conical block.

[0010] Preferably, the pushing assembly comprises six sliding grooves formed in the inner wall of the shaft coupling body, and a counterweight is slidably connected to the inner wall of each of the six sliding grooves, and the shaft coupling body is provided with two connecting rods, and the right side of the counterweight on the right side of the front face is rotatably connected to the inner wall of the connecting rod on the front face. The left side of the counterweight on the left side of the back face is rotatably connected to the inner wall of the connecting rod on the back face, and the inner walls of the two connecting rods are rotatably connected to the sides of the two connecting rods away from the conical blocks. When the coupling body rotates, centrifugal force is generated, at this time, the plurality of counterweights is affected by the centrifugal force and moves towards the outer wall of the coupling body, the counterweight on the right side pushes the connecting rod one to rotate, as shown, and the connecting rod one pushes the connecting rod and the conical stopper to descend, so that the inclined surface of the conical stopper abuts against the inclined surface of the conical sleeve, as shown, and the inclined surface of the conical sleeve is extruded. By using the centrifugal force generated by the rotation of the coupling body to extrude the conical sleeve, the extrusion force is applied to the conical sleeve, thereby increasing the resistance when the bolt rotates and enhancing the anti-loosening ability of the bolt. The bolt is prone to loosening in a high-vibration environment, thereby stabilizing the transmission of the rotating force of the coupling body.

[0011] Preferably, the slowing-down assembly comprises two fixed cylinders fixedly connected to the inner wall of the coupling body, the inner wall of each of the two fixed cylinders is slidably connected with a spring piston block, and the outer wall of each of the two spring piston blocks is fixedly connected with a sealing ring for preventing gas leakage. The inner wall of each of the two spring piston blocks is fixedly connected with the outer wall of each of the two connecting rods, and the inner wall of each of the two fixed cylinders is provided with a throttling hole. When the connecting rod descends, the spring piston block is caused to descend and accumulate elastic force, and the spring piston block extrudes the gas in the fixed cylinder and is discharged through the throttling hole. When the rotating speed of the coupling body is high during the speed-up process, strong centrifugal force is generated, which causes the counterweight to move quickly, the connecting rod and the spring piston block are quickly lowered through the connecting rod one, and the spring piston block quickly extrudes the gas in the fixed cylinder to cause the gas to generate high pressure. Since the throttling hole is small, the gas is discharged at a slow speed, and the high-pressure gas slows down the descending speed of the spring piston block and reduces the descending speed of the conical stopper, thereby effectively preventing the strong centrifugal force generated when the rotating speed of the coupling body is high during the speed-up process from causing the counterweight to move quickly and the conical stopper to quickly descend and contact the conical sleeve, so that the conical sleeve is impacted and the bolt is subjected to additional impact force, which easily causes the bolt to be damaged.

[0012] Preferably, the sliding assembly comprises two arc-shaped grooves formed in the inner wall of the coupling body, and the inner wall of each of the two arc-shaped grooves is slidably connected with an arc-shaped plate.

[0013] Preferably, the pulling assembly comprises three connecting frames fixedly connected to the side wall of the arc-shaped plate, and the outer wall of each of the six connecting frames is slidably connected with the inner wall of the coupling body. The side, away from the arc-shaped plate, of each of the six connecting frames is rotatably connected with a connecting rod two, and the inner wall of each of the six connecting rods two is rotatably connected with the side wall of each of the six counterweights. When the plurality of counterweights are moved to the outer wall of the coupling body under the influence of centrifugal force during rotation of the coupling body, the counterweights also pull the second connecting rod to rotate, thereby pulling the connecting frame to move towards the counterweights, and driving the arc-shaped plate to move. Since the plurality of counterweights are connected to the connecting frame and the arc-shaped plate through the second connecting rod, the plurality of counterweights move synchronously. When the counterweight on the right side stops moving after pushing the conical block down to fit the conical sleeve through the first connecting rod, the counterweights at other positions also stop moving, so that the center of gravity of the coupling body is evenly distributed, and the counterweights at other positions do not continue to move after the counterweight on the right side stops moving, so that the center of gravity of the coupling body is unevenly distributed, which can easily intensify the vibration of the coupling body.

[0014] The present application has the following advantages: (1) When the present application is used, the operator turns the bolt by using a torque wrench, and the shaft hole of the coupling body is tightened by the fastening force of the bolt, so as to clamp the output shaft and the transmission shaft. The bolt drives the conical sleeve to move. When the water pump or air pump is running, the coupling body is rotated by starting the motor, which generates centrifugal force outward. At this time, the plurality of counterweights are moved to the outer wall of the coupling body under the influence of centrifugal force. The counterweight on the right side drives the connecting rod and the conical block to move down, so that the conical block extrudes the conical sleeve. By using the centrifugal force generated by the rotation of the coupling body to apply extrusion force to the conical sleeve, the resistance during rotation of the bolt is increased, the anti-loosening ability of the bolt is enhanced, and the bolt is effectively prevented from loosening in a high-vibration environment, so that the coupling body can stably transmit rotary force.

[0015] (2) When the plurality of counterweights are moved to the outer wall of the coupling body under the influence of centrifugal force during rotation of the coupling body, the counterweights also pull the second connecting rod to rotate, thereby pulling the connecting frame to move towards the counterweights, and driving the arc-shaped plate to move. Through the sliding assembly and the pulling assembly, the plurality of counterweights move synchronously. When the counterweight on the right side stops moving, the counterweights at other positions also stop moving, so that the center of gravity of the coupling body is evenly distributed, and the counterweights at other positions do not continue to move after the counterweight on the right side stops moving, so that the center of gravity of the coupling body is unevenly distributed, which can easily intensify the vibration of the coupling body.

[0016] (3) The application increases the resistance of bolt rotation by utilizing the centrifugal force when the coupling body rotates, when the rotational speed of the coupling body is faster, the centrifugal force on the counterweight is stronger, the generated thrust is larger, the extrusion of the conical stopper on the conical sleeve increases, the resistance on the bolt increases, effectively preventing the coupling body from rotating faster, the vibration may be more intense, and the risk of bolt loosening increases; in addition, the multiple counterweights move the same distance through the arc plate, at this time, the multiple counterweights are affected by the centrifugal force of the coupling body and generate outward thrust, which is transmitted to the counterweight on the right side through the arc plate, generating a resultant force, increasing the resistance of the conical stopper on the conical sleeve, further limiting the loosening of the bolt, effectively preventing the coupling body from rotating slowly, the centrifugal force generated is weak, and the resistance of the conical stopper on the conical sleeve is insufficient.

[0017] (4) When the connecting rod descends, it drives the spring piston block to descend, extruding the gas in the fixed cylinder and discharging through the throttle hole, when the rotational speed of the coupling body is fast during the speed-up process, a strong centrifugal force is generated, which makes the counterweight move quickly, the connecting rod and the spring piston block descend quickly, extruding the gas in the fixed cylinder, and the gas generates high pressure, since the throttle hole is small, the gas discharge speed is slow, and the high-pressure gas slows down the descending speed of the spring piston block and the conical stopper, effectively preventing the coupling body from rotating during the speed-up process, the centrifugal force generated is strong, and when the conical stopper quickly descends and contacts the conical sleeve, the conical sleeve is impacted, the bolt is subjected to additional impact force, and the bolt is easily damaged. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 It is a cross-sectional view of the coupling body of the application; Figure 2 It is a left view schematic diagram of the overall structure of the application; Figure 3 It is a left view cross-sectional schematic diagram of the coupling body of the application; Figure 4 It is a cross-sectional schematic diagram of the fixed cylinder of the application; Figure 5 It is a cross-sectional schematic diagram of the fixed cylinder of the application; Figure 4 It is an enlarged schematic diagram of A in the application; Figure 6 It is a top view cross-sectional schematic diagram of the coupling body of the application; Figure 7 It is a top view cross-sectional schematic diagram of the coupling body of the application; Figure 6Amplified schematic view at B; Figure 8 Schematic view of the arc plate structure of the present application; Figure 9 Schematic view of the working process of the tapered block of the present application.

[0020] In the drawings, the components represented by each reference numeral are listed as follows: In the drawings: 1, main body mechanism; 11, connecting assembly; 12, blocking assembly; 13, shaft coupling main body; 14, threaded sleeve; 15, bolt; 111, tapered sleeve; 112, square groove; 121, tapered block; 122, connecting rod; 2, extension mechanism; 21, pushing assembly; 22, slowing assembly; 211, sliding groove; 212, counterweight; 213, connecting rod one; 221, fixed cylinder; 222, spring piston block; 223, throttle hole; 3, synchronization mechanism; 31, sliding assembly; 32, pulling assembly; 311, arc-shaped groove; 312, arc-shaped plate; 321, connecting frame; 322, connecting rod two. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Embodiment one, please refer to Figures 1-4 The present application is a diaphragm type shaft coupling clamping mechanism, which comprises a shaft coupling main body 13, two threaded sleeves 14 are fixedly connected to the inner wall of the shaft coupling main body 13, two bolts 15 are arranged on the inner wall of the shaft coupling main body 13, and the outer walls of the two bolts 15 are in threaded connection with the inner walls of the two threaded sleeves 14. The main body mechanism 1 is slidingly arranged on the inner wall of the shaft coupling main body 13, and is used to abut against the bolt 15. The extension mechanism 2 is slidingly arranged on the inner wall of the shaft coupling main body 13, and is used to apply a blocking force to the bolt 15. The synchronization mechanism 3 is slidingly arranged on the inner wall of the shaft coupling main body 13, and is used to synchronously move the extension mechanism 2. Wherein, the operator will water pump or air pump motor output shaft and transmission transmission shaft, respectively placed in the shaft hole at both ends of the coupling body 13, after the placement, the operator through the use of torque wrench rotating bolt 15, let bolt 15 in the threaded sleeve 14 screw moves, drive the tapered sleeve 111 moves, until bolt 15 and coupling body 13 contact, continue to rotate bolt 15, through the fastening force of bolt 15 will be the shaft hole of coupling body 13 tight, so as to clamp the output shaft and transmission shaft.

[0023] The main body mechanism 1 comprises: The connecting assembly 11 is fixedly arranged at the outer wall of the bolt 15. The blocking assembly 12 is slidably arranged at the inner wall of the coupling body 13. Wherein, after the shaft hole of the coupling body 13 clamps the output shaft and the transmission shaft, when the water pump or the air pump runs, the coupling body 13 is driven to rotate by starting the motor, and the rotating force of the motor is transmitted to the transmission shaft through the coupling body 13.

[0024] The extension mechanism 2 comprises: The pushing assembly 21 is slidably arranged at the inner wall of the coupling body 13. The slowing assembly 22 is fixedly arranged at the inner wall of the coupling body 13. Wherein, when the coupling body 13 rotates, the centrifugal force generated by the coupling body 13 will push the pushing assembly 21 to move towards the outer wall of the coupling body 13, push the blocking assembly 12 to descend and contact with the connecting assembly 11, and block the bolt 15.

[0025] The synchronization mechanism 3 comprises: The sliding assembly 31 is slidably arranged at the inner wall of the coupling body 13. The pulling assembly 32 is slidably arranged at the inner wall of the coupling body 13. Wherein, when the pushing assembly 21 moves, the pulling assembly 32 will be driven to move, and the sliding assembly 31 will be moved by the pulling assembly 32.

[0026] Example two, please refer to Figures 3-9 The present application is a diaphragm coupling clamping mechanism, based on example one, the connecting assembly 11 comprises the tapered sleeve 111 fixedly connected at the outer wall of the bolt 15, the outer wall of the two tapered sleeves 111 is slidably connected with the inner wall of the coupling body 13, and the inner wall of the coupling body 13 is provided with two square grooves 112.

[0027] The blocking assembly 12 includes a tapered block 121 that is slidably connected to the inner wall of the square groove 112. Two connecting rods 122 are provided on the inner wall of the coupling body 13. The side of the two tapered blocks 121 away from the tapered sleeve 111 is fixedly connected to the side of the two connecting rods 122 close to the tapered sleeve 111. When the bolt 15 is rotated to tighten the shaft hole of the coupling body 13, the tapered sleeve 111 will move away from the tapered stop 121.

[0028] The pushing component 21 includes six sliding grooves 211 opened on the inner wall of the coupling body 13. Each of the six sliding grooves 211 has a counterweight 212 slidably connected to its inner wall. Two connecting rods 213 are provided on the inner wall of the coupling body 13. The right side of the counterweight 212 on the front right side is rotatably connected to the inner wall of the connecting rod 213 on the front. The left side of the counterweight 212 located on the left side of the back is rotatably connected to the inner wall of the connecting rod 213 located on the back. The inner walls of the two connecting rods 213 are rotatably connected to the side of the two connecting rods 122 away from the conical stop 121. When the coupling body 13 rotates, it generates an outward centrifugal force. At this time, multiple counterweights 212, affected by this outward centrifugal force, move towards the outer wall of the coupling body 13. The counterweight 212 on the right side then pushes the connecting rod 213 to rotate. Figure 4 As shown, the connecting rod 213 pushes the connecting rod 122 and the conical stop 121 downwards, so that the inclined surface of the conical stop 121 fits against the inclined surface of the conical sleeve 111, as shown. Figure 9 As shown, the inclined surface of the conical sleeve 111 is squeezed, and the centrifugal force generated by the rotation of the coupling body 13 is used to apply a squeezing force to the conical sleeve 111, thereby increasing the resistance when the bolt 15 rotates, enhancing the bolt 15's anti-loosening ability, and effectively preventing the bolt 15 from loosening easily in the coupling body 13 under high vibration environment, thus allowing the coupling body 13 to stably transmit rotational force.

[0029] The mitigation assembly 22 includes two fixed cylinders 221 fixedly connected to the inner wall of the coupling body 13. Spring piston blocks 222 are slidably connected to the inner walls of the two fixed cylinders 221, and sealing rings are fixedly connected to the outer walls of the two spring piston blocks 222 to prevent gas leakage. The inner walls of the two spring piston blocks 222 are fixedly connected to the outer walls of the two connecting rods 122, and the inner walls of the two fixed cylinders 221 are provided with throttling holes 223. When the connecting rod 122 descends, the spring piston block 222 will also descend and accumulate elastic force. The spring piston block 222 will press the gas in the fixed cylinder 221 and discharge through the throttle hole 223. When the rotating speed of the shaft coupling main body 13 is fast during the speed-up process, a strong centrifugal force will be generated, which will make the counterweight block 212 move fast, drive the connecting rod 122 and the spring piston block 222 to descend fast through the connecting rod 213, and make the spring piston block 222 press the gas in the fixed cylinder 221 fast, so that the gas generates high pressure. Since the throttle hole 223 is small, the gas discharge speed is slow, and the high-pressure gas will slow down the descending speed of the spring piston block 222 and the descending speed of the conical stop block 121, effectively preventing the rotating speed of the shaft coupling main body 13 from being fast during the speed-up process, the strong centrifugal force from making the counterweight block 212 move fast, and the conical stop block 121 from descending fast and contacting the conical sleeve 111, which will impact the conical sleeve 111 and make the bolt 15 bear additional impact force, easily causing damage to the bolt 15.

[0030] The sliding assembly 31 comprises two arc-shaped grooves 311 formed in the inner wall of the shaft coupling main body 13, and the inner wall of each of the two arc-shaped grooves 311 is slidably connected with an arc-shaped plate 312.

[0031] The pulling assembly 32 comprises three connecting frames 321 fixedly connected to the side wall of the arc-shaped plate 312, and the outer wall of each of the six connecting frames 321 is slidably connected with the inner wall of the shaft coupling main body 13. The side, away from the arc-shaped plate 312, of each of the six connecting frames 321 is rotatably connected with a connecting rod 322, and the inner wall of each of the six connecting rods 322 is rotatably connected with the side wall of each of the six counterweight blocks 212. When the shaft coupling main body 13 rotates, the plurality of counterweight blocks 212 will move to the outer wall of the shaft coupling main body 13 under the influence of the centrifugal force, and the counterweight blocks 212 will also rotate the connecting rods 322, thereby pulling the connecting frames 321 to move to the direction of the counterweight blocks 212 and driving the arc-shaped plates 312 to move. Since the plurality of counterweight blocks 212 are connected with the connecting frames 321 and the arc-shaped plates 312 through the connecting rods 322, the plurality of counterweight blocks 212 will move synchronously. When the right-side counterweight block 212 pushes the conical stop block 121 to descend and abut against the conical sleeve 111 through the connecting rod 213, the right-side counterweight block 212 will stop moving. Since the plurality of counterweight blocks 212 move synchronously, when the right-side counterweight block 212 stops moving, the counterweight blocks 212 at other positions will also stop moving, so that the center of gravity of the shaft coupling main body 13 is evenly distributed, effectively preventing the right-side counterweight block 212 from stopping moving and the counterweight blocks 212 at other positions from continuing to move, which will cause the center of gravity of the shaft coupling main body 13 to be unevenly distributed and easily intensify the vibration of the shaft coupling main body 13.

[0032] The number of the above components is not limited, and those skilled in the art can freely set according to actual needs, as long as the components are installed at the corresponding component connection positions.

[0033] One specific application of the embodiment is that when the application is used, the operator places the motor output shaft and the transmission shaft of the water pump or the air pump in the shaft holes at both ends of the coupling main body 13, and after the placement is completed, the operator rotates the bolt 15 by using a torque wrench, so that the bolt 15 moves spirally in the threaded sleeve 14, drives the conical sleeve 111 to move, until the bolt 15 contacts the coupling main body 13, and the bolt 15 is continuously rotated, the fastening force of the bolt 15 tightens the shaft hole of the coupling main body 13, so as to clamp the output shaft and the transmission shaft, when the water pump or the air pump operates, the coupling main body 13 is driven to rotate by starting the motor, and the rotating force of the motor is transmitted to the transmission shaft through the coupling main body 13; When the coupling main body 13 rotates, an outward centrifugal force is generated, at this time, the multiple counterweights 212 are affected by the outward centrifugal force and move towards the outer wall of the coupling main body 13, the counterweight 212 on the right side pushes the connecting rod one 213 to rotate, as shown in Figure 4 As shown, the connecting rod one 213 pushes the connecting rod 122 and the conical stop block 121 to descend, so that the inclined surface of the conical stop block 121 is in contact with the inclined surface of the conical sleeve 111, as shown in Figure 9 As shown, the inclined surface of the conical sleeve 111 is extruded, the centrifugal force generated by the rotation of the coupling main body 13 is used to apply extrusion force to the conical sleeve 111, so as to increase the resistance when the bolt 15 rotates, enhance the anti-loosening ability of the bolt 15, effectively prevent the bolt 15 from loosening in the high-vibration environment of the coupling main body 13, so as to stably transmit the rotating force of the coupling main body 13; Secondly, when the coupling main body 13 rotates, the multiple counterweights 212 move towards the outer wall of the coupling main body 13 under the influence of the centrifugal force, the counterweight 212 also pulls the connecting rod two 322 to rotate, thereby pulling the connecting frame 321 to move towards the counterweight 212, and driving the arc-shaped plate 312 to move, since the multiple counterweights 212 are connected with the connecting frame 321 and the arc-shaped plate 312 through the connecting rod two 322, the multiple counterweights 212 move synchronously, after the counterweight 212 on the right side pushes the conical stop block 121 to descend and contact with the conical sleeve 111, the counterweight 212 on the right side stops moving, since the multiple counterweights 212 move synchronously, when the counterweight 212 on the right side stops moving, the counterweights 212 at other positions also stop moving, so that the center of gravity of the coupling main body 13 is evenly distributed, effectively preventing the counterweight 212 on the right side from stopping moving, and the counterweights 212 at other positions continue to move, so that the center of gravity of the coupling main body 13 is unevenly distributed, and the vibration of the coupling main body 13 is easily intensified; Secondly, by using the centrifugal force when the coupling body 13 rotates, the resistance to the rotation of the bolt 15 is increased, the faster the rotational speed of the coupling body 13, the stronger the centrifugal force on the counterweight 212, the greater the thrust generated, the extrusion of the conical stopper 121 on the conical sleeve 111 will increase, increasing the resistance to the bolt 15, effectively preventing the coupling body 13 from rotating faster, the vibration may be more intense, and the risk of bolt 15 loosening will increase; in addition: through the arc plate 312, the multiple counterweights 212 move the same distance, at this time, the multiple counterweights 212 are affected by the centrifugal force of the coupling body 13, generating an outward thrust, which is transmitted to the counterweight 212 on the right side through the arc plate 312, generating a resultant force, increasing the resistance of the conical stopper 121 on the conical sleeve 111, further limiting the loosening of the bolt 15, effectively preventing the coupling body 13 from rotating slowly, generating a weak centrifugal force, and the resistance of the conical stopper 121 on the conical sleeve 111 being insufficient; Secondly, when the connecting rod 122 descends, it will drive the spring piston block 222 to descend, accumulating the rebound force, the spring piston block 222 will extrude the gas in the fixed cylinder 221, and be discharged through the throttle hole 223, when the rotational speed of the coupling body 13 is fast during the speed-up process, a strong centrifugal force will be generated, which will make the counterweight 212 move quickly, the connecting rod 122 and the spring piston block 222 will be quickly lowered through the connecting rod 213, when the spring piston block 222 quickly descends, it will quickly extrude the gas in the fixed cylinder 221, making the gas generate high pressure, because the throttle hole 223 is small, the gas discharge speed is slow, and the high-pressure gas will slow down the descending speed of the spring piston block 222, reducing the descending speed of the conical stopper 121, effectively preventing the coupling body 13 from rotating fast during the speed-up process, generating a strong centrifugal force, making the counterweight 212 move quickly, and making the conical stopper 121 quickly descend and contact the conical sleeve 111, which will cause the conical sleeve 111 to be impacted, and the bolt 15 to be subjected to additional impact force, which is easy to cause damage to the bolt 15.

[0034] The preferred embodiments disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the specification. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A diaphragm coupling clamping mechanism, comprising a coupling body (13), two threaded sleeves (14) are fixedly connected at the inner wall of the coupling body (13), two bolts (15) are arranged at the inner wall of the coupling body (13), and the outer walls of the two bolts (15) are in threaded connection with the inner walls of the two threaded sleeves (14), characterized in that, Also include: The main mechanism (1) is slidably arranged at the inner wall of the coupling body (13) for abutting with the bolt (15); Extension mechanism (2), the extension mechanism (2) is slidably arranged at the inner wall of the coupling body (13) for applying resistance to the bolt (15); Synchronization mechanism (3), the synchronization mechanism (3) is slidably arranged at the inner wall of the coupling body (13) for synchronous movement of the extension mechanism (2); Wherein, in use, the output shaft of the water pump or air pump motor and the transmission shaft of the transmission are respectively placed in the shaft hole at both ends of the coupling body (13), then the shaft hole at both ends of the coupling body (13) is shrunk by rotating the bolt (15), and the output shaft and the transmission shaft are clamped respectively.

2. A clamping mechanism for a membrane coupling as claimed in claim 1, characterized in that: The main mechanism (1) comprises: Connecting assembly (11), the connecting assembly (11) is fixedly arranged on the outer wall of the bolt (15); Blocking assembly (12), the blocking assembly (12) is slidably arranged on the inner wall of the coupling body (13); Wherein, after the shaft hole of the coupling body (13) clamps the output shaft and the transmission shaft, the coupling body (13) is driven to rotate by starting the motor.

3. A clamping mechanism for a membrane coupling as defined in claim 1, wherein: The extension mechanism (2) comprises: Pushing assembly (21), the pushing assembly (21) is slidably arranged on the inner wall of the coupling body (13); Slow down the component (22), the slow down the component (22) is fixedly arranged on the inner wall of the coupling body (13); Wherein, when the coupling body (13) rotates, it is affected by the centrifugal force generated by the coupling body (13), which will make the pushing assembly (21) move to the outer wall of the coupling body (13), push the blocking assembly (12) to descend and contact with the connecting assembly (11), and block the bolt (15).

4. A clamp mechanism for a membrane coupling as defined in claim 1, wherein: The synchronization mechanism (3) comprises: Sliding assembly (31), the sliding assembly (31) is slidably arranged on the inner wall of the coupling body (13); Pulling assembly (32), the pulling assembly (32) is slidably arranged on the inner wall of the coupling body (13); Wherein, when the pushing assembly (21) moves, the pulling assembly (32) will be moved, and the pulling assembly (32) will make the sliding assembly (31) move.

5. A clamp mechanism for a membrane coupling as defined in claim 2, wherein: The connecting assembly (11) comprises a conical sleeve (111) fixedly connected to the outer wall of the bolt (15), the outer wall of the two conical sleeves (111) is slidably connected with the inner wall of the coupling body (13), and two square grooves (112) are formed in the inner wall of the coupling body (13).

6. A clamp mechanism for a membrane coupling as defined in claim 5, wherein: The blocking assembly (12) comprises a conical block (121) slidably connected to the inner wall of the square groove (112), and two connecting rods (122) are arranged on the inner wall of the coupling body (13), and the side of the two conical blocks (121) away from the conical sleeve (111) is fixedly connected with the side of the two connecting rods (122) close to the conical sleeve (111); Wherein, when the bolt (15) is rotated to tighten the shaft hole of the coupling body (13), the conical sleeve (111) is moved, and the conical sleeve (111) is moved away from the conical block (121).

7. A clamp mechanism for a membrane coupling as defined in claim 3, wherein: The pushing assembly (21) comprises six sliding grooves (211) formed in the inner wall of the shaft coupling body (13), the inner wall of each of the six sliding grooves (211) is slidably connected with a counterweight (212), the inner wall of the shaft coupling body (13) is provided with two connecting rods (213), the right side of the counterweight (212) on the front side is rotatably connected with the inner wall of the connecting rod (213) on the front side; The left side of the counterweight (212) on the back side is rotatably connected with the inner wall of the connecting rod (213) on the back side, and the inner wall of each of the two connecting rods (213) is rotatably connected with the side, away from the conical stop block (121), of the connecting rod (122). When the shaft coupling body (13) rotates, the counterweight (212) is affected by the centrifugal force generated by the rotation of the shaft coupling body (13) and moves towards the outer wall of the shaft coupling body (13), the counterweight (212) on the right side pushes the connecting rod (213) to rotate, so that the connecting rod (122) and the conical stop block (121) descend and are attached to the conical sleeve (111).

8. A bellows type coupling clamp mechanism as claimed in claim 7 wherein: The slowing down assembly (22) comprises two fixed cylinders (221) fixedly connected to the inner wall of the shaft coupling body (13), and the inner wall of each of the two fixed cylinders (221) is slidably connected with a spring piston block (222); The inner wall of each of the two spring piston blocks (222) is fixedly connected with the outer wall of the connecting rod (122), and the inner wall of each of the two fixed cylinders (221) is provided with a throttling hole (223); When the connecting rod (122) descends, it drives the spring piston block (222) to descend, so that the spring piston block (222) accumulates elastic force, and at the same time, the gas in the fixed cylinder (221) is also pressed.

9. A clamp mechanism for a membrane coupling as defined in claim 4, wherein: The sliding assembly (31) comprises two arc-shaped grooves (311) formed in the inner wall of the shaft coupling body (13), and the inner wall of each of the two arc-shaped grooves (311) is slidably connected with an arc-shaped plate (312).

10. A membrane coupling clamp mechanism according to claim 9, wherein: The pulling assembly (32) comprises three connecting frames (321) fixedly connected to the side wall of the arc-shaped plate (312), and the inner wall of the shaft coupling body (13) is slidably connected with the outer wall of each of the six connecting frames (321); The side, away from the arc-shaped plate (312), of each of the six connecting frames (321) is rotatably connected with a connecting rod (322), and the inner wall of each of the six connecting rods (322) is rotatably connected with the side wall of each of the six counterweights (212); When the counterweight (212) moves, it pulls the connecting rod (322) to rotate, thereby driving the connecting frame (321) and the arc-shaped plate (312) to move, and since the plurality of counterweights (212) are connected through the connecting rod (322) and the arc-shaped plate (312), the plurality of counterweights (212) are synchronously moved.

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