Coupling capable of preventing jumping

Abstract

The utility model relates to the field of couplings, in particular to a bounce-preventing coupling which comprises a main shaft sleeve, a main body used for being connected with an external shaft, an embedded groove and a rubber buffer gasket which is arranged on the other side of the main shaft sleeve and used for damping vibration transmitted by the external shaft, and the rubber buffer gasket is fixedly installed in the embedded groove. Buffering steel balls are arranged on the outer portion of the rubber buffering gasket. Due to the arrangement of the main shaft sleeve, the embedded groove, the rubber buffering gasket, the buffering steel ball, the expansion piece pipe, the fixing plate and the anti-jumping plate, when the coupler is used and vibrates from an external shaft to cause the coupler to jump, the rubber buffering gasket and the buffering steel ball in the embedded groove of the main shaft sleeve can give full play to the advantages of the rubber buffering gasket and the buffering steel ball; the elasticity and damping performance of the rubber buffering gasket and the rolling compensation effect of the buffering steel balls supplement each other to absorb and disperse vibration energy together, and bounce and noise of a shafting are reduced.

Description

Technical Field

[0001] The utility model relates to the field of couplings, in particular to a coupling capable of preventing jumping. Background Art

[0002] A coupling, also known as a coupling, is a mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms so that they can rotate together and transmit motion and torque. It is sometimes also used to connect the shaft with other parts such as gears and pulleys. The main function of the coupling is to ensure that the two shafts or the shaft and the rotating part can rotate together stably and reliably during the process of transmitting motion and power.

[0003] After searching, a coupling with publication number CN214248043U is found, which specifically discloses a coupling, including a coupling body, six mounting grooves are evenly arranged axially on the coupling body, the end face of the coupling body is divided into six petals, each petal end face is composed of a horizontal fan surface and upward inclined slopes located on both sides of the fan surface, the angle between the slope and the horizontal plane is 30°-40°, and a clamp groove is arranged on the neck of the coupling body. The utility model arranges multiple mounting grooves on the coupling body and special slopes on the end face. When the connecting shaft is inserted into the coupling, it will not cause jamming at any angle, and the connecting shaft can be quickly guided into the mounting groove. The utility model improves the installation speed of the connecting shaft and improves the blind insertion efficiency.

[0004] During use, if the existing coupling lacks the ability to prevent jumping, the vibration and impact caused by the jumping will affect the stability and accuracy of the equipment and increase the noise level of the equipment. The coupling in the above-mentioned comparative case also lacks the ability to prevent jumping. Therefore, after long-term use, not only the stability and reliability of the shaft connected to the coupling will be reduced, but also the accuracy of the connected equipment will be reduced and the energy consumption will increase.

[0005] Therefore, it is necessary to invent a coupling that prevents jumping to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a coupling that prevents jumping. Through the main shaft sleeve, embedded groove, rubber buffer gasket, buffer steel ball, expansion tube, fixed plate and anti-jumping plate, the coupling has the ability to prevent jumping, which greatly improves the stability of the coupling, reduces the vibration and impact caused by jumping that affect the stability and accuracy of the equipment, and reduces the noise of the equipment caused by jumping. This not only ensures the stability and reliability of the shaft connected by the coupling, but also ensures the accuracy of the connected equipment and reduces the energy consumption. This solves the problem in the prior art that during use of the coupling, the vibration and impact caused by jumping will affect the stability and accuracy of the equipment and increase the noise level of the equipment due to the lack of anti-jumping ability of the coupling. The coupling in the above-mentioned comparative case also lacks the ability to prevent jumping. Therefore, under long-term use, not only the stability and reliability of the shaft connected to the coupling will be reduced, but also the accuracy of the connected equipment will be reduced and the energy consumption will increase.

[0007] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a coupling for preventing jumping, comprising a main shaft sleeve, a main body for connecting with an external shaft;

[0008] The inner groove is arranged on the other side of the main shaft sleeve, and is used to reduce the vibration transmitted from the external shaft, and a rubber buffer gasket is fixedly installed inside the inner groove, a buffer steel ball is arranged outside the rubber buffer gasket, and an external sealing sheet is fixedly installed outside the inner groove;

[0009] A fixing bolt passes through the outside of the main shaft sleeve and is used to connect and install the first outer tube sleeve, and the interior of the first outer tube sleeve is movably connected with a telescopic tube, the other end of the telescopic tube is provided with a second outer tube sleeve, one end of the telescopic tube is fixedly installed with a fixing plate, one side of the fixing plate is provided with a torsion spring, and one end of the torsion spring is fixedly installed with an anti-jumping plate.

[0010] Preferably, a shaft sleeve is fixedly installed on one side of the main shaft sleeve, a fixed slot is opened inside the shaft sleeve, a fixed block is movably connected inside the fixed slot, an external shaft is fixedly installed on one end of the fixed block, and a fastening bolt passes through the outside of the shaft sleeve.

[0011] Preferably, a fixed block fixedly installed on the outside of the external shaft is engaged with a fixed slot provided inside the shaft sleeve, and the fixed block and the fixed slot are used in coordination.

[0012] Preferably, the number of the buffer steel balls is set to be multiple, and the multiple buffer steel balls are distributed in a ring array on the embedded groove.

[0013] Preferably, an adjusting screw hole is provided on the surface of the expander tube, and a stud bolt penetrates the outside of the first outer tube sleeve.

[0014] Preferably, the anti-jump plate is movably connected to the fixed plate, and the torsion springs are evenly spaced on the fixed plate.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The utility model is provided with a main shaft sleeve, an embedded groove, a rubber buffer washer, a buffer steel ball, an expansion joint tube, a fixed plate and an anti-jumping plate. When the coupling is used and encounters vibration transmitted from an external shaft causing the coupling to jump, the rubber buffer washer and the buffer steel ball in the embedded groove of the main shaft sleeve can give full play to the advantages of both. The elasticity and damping performance of the rubber buffer washer and the rolling compensation effect of the buffer steel ball complement each other, and jointly absorb and disperse the vibration energy, reduce the jumping and noise of the shaft system, and then at both ends of the expansion joint tube, through the fixed plate, the torsion spring and the anti-jumping plate, the anti-jumping plate is allowed to contact the outer closing plate to increase the buffering capacity of the expansion joint tube, which can absorb and disperse the vibration energy when the mechanical equipment is running, thereby playing the role of shock absorption and anti-jumping. In this way, the coupling has the ability to prevent jumping, greatly improves the stability of the coupling, reduces the vibration and impact caused by the jumping that affect the stability and accuracy of the equipment, and also reduces the noise of the equipment caused by the jumping, which not only ensures the stability and reliability of the shaft connected by the coupling, but also ensures the accuracy of the connected equipment and reduces energy consumption;

[0017] The utility model is provided with a main shaft sleeve, a shaft tube sleeve, a fixed groove, a fixed block, an external shaft, a first external tube sleeve, an expansion tube and a second external tube sleeve. When the coupling is used, the fixed block of the external shaft can be clamped in the fixed groove of the shaft tube sleeve, so that misaligned installation can be avoided, and the stability of the connection between the shaft tube sleeve and the external shaft is strengthened by tightening bolts, so that the coupling can drive the external shaft to rotate more stably. At the same time, after the coupling is connected to the two groups of external shafts, the fixing plate and the torsion spring are compressed on both sides of the first external tube sleeve and the second external tube sleeve so that the expansion tube can be adjusted in length inside the first external tube sleeve, and the length of the expansion tube is fixed by passing the stud bolts through the adjusting screw holes, thereby meeting the purpose of adjusting the clearance of the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2This is a schematic diagram of the external shaft structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the buffer steel ball of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the telescopic tube of the utility model;

[0023] Figure 5 It is a schematic diagram of the anti-jump board structure of the utility model.

[0024] Description of reference numerals:

[0025] 1. Main shaft sleeve; 2. Shaft tube sleeve; 3. Fixed slot; 4. Fixed block; 5. External shaft; 6. Fastening bolt; 7. Embedded groove; 8. Rubber buffer gasket; 9. Buffer steel ball; 10. External closing plate; 11. Fixed bolt; 12. First external tube sleeve; 13. Expansion tube; 14. Second external tube sleeve; 15. Adjustment screw hole; 16. Stud bolt; 17. Fixed plate; 18. Torsion spring; 19. Anti-jump board. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-5 The coupling for preventing jumping shown in the figure comprises a main shaft sleeve 1 and a main body for connecting with an external shaft 5;

[0028] The inner groove 7 is arranged on the other side of the main shaft sleeve 1, and is used to damp the vibration transmitted from the external shaft 5, and a rubber buffer gasket 8 is fixedly installed inside the inner groove 7, a buffer steel ball 9 is arranged outside the rubber buffer gasket 8, and an outer sealing piece 10 is fixedly installed outside the inner groove 7;

[0029] A fixing bolt 11 passes through the outside of the main shaft sleeve 1 and is used to connect and install the first outer tube sleeve 12. The first outer tube sleeve 12 is movably connected to the inside of the expansion tube 13. The other end of the expansion tube 13 is provided with a second outer tube sleeve 14. A fixing plate 17 is fixedly installed at one end of the expansion tube 13. A torsion spring 18 is provided on one side of the fixing plate 17. An anti-jumping plate 19 is fixedly installed at one end of the torsion spring 18. The fixing plate 17, the torsion spring 18 and the anti-jumping plate 19 are passed through the two ends of the expansion tube 13 to make the anti-jumping plate 19 contact the outer closing plate 10 to increase the buffering capacity of the inside of the expansion tube 13, which can absorb and disperse vibration energy when the mechanical equipment is running, thereby playing a role in shock absorption and anti-jumping.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, a shaft sleeve 2 is fixedly installed on one side of the main shaft sleeve 1, a fixed slot 3 is opened inside the shaft sleeve 2, a fixed block 4 is movably connected inside the fixed slot 3, an external shaft 5 is fixedly installed on one end of the fixed block 4, a fastening bolt 6 is passed through the outside of the shaft sleeve 2, and the fastening bolt 6 is used to strengthen the stability of the connection between the shaft sleeve 2 and the external shaft 5, so that the coupling drives the external shaft 5 to rotate more stably, the fixed block 4 fixedly installed on the outside of the external shaft 5 is engaged with the fixed slot 3 opened inside the shaft sleeve 2, and the fixed block 4 is fixedly connected with the fixed The fixed card slot 3 is used in combination to clamp the fixed block 4 of the external shaft 5 in the fixed card slot 3 of the shaft sleeve 2, so as to avoid misaligned installation. The number of buffer steel balls 9 is set to multiple, and multiple buffer steel balls 9 are distributed in a ring array on the embedded groove 7. The rubber buffer gasket 8 and the buffer steel balls 9 in the embedded groove 7 of the main shaft sleeve 1 can give full play to the advantages of both. The elasticity and damping performance of the rubber buffer gasket 8 and the rolling compensation effect of the buffer steel balls 9 complement each other, and jointly absorb and disperse vibration energy to reduce the vibration and noise of the shaft system.

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, the surface of the expansion joint tube 13 is provided with an adjusting screw hole 15, and the outside of the first outer tube sleeve 12 is penetrated by a stud bolt 16. After the coupling is connected to the two sets of external shafts 5, the fixing plate 17 and the torsion spring 18 are compressed on both sides of the first outer tube sleeve 12 and the second outer tube sleeve 14 so that the expansion joint tube 13 can be adjusted in length inside the first outer tube sleeve 12. The stud bolt 16 penetrates the adjusting screw hole 15 to complete the fixing of the length of the expansion joint tube 13, thereby meeting the purpose of adjusting the clearance of the coupling. The anti-jumping plate 19 is movably connected with the fixing plate 17, and the torsion springs 18 are evenly spaced on the fixing plate 17. The anti-jumping plate 19 and the fixing plate 17 have simple structures and simple operations. If a fault occurs, it is also convenient for maintenance personnel to carry out maintenance in time without delaying the normal use of the device.

[0032] The working principle of the utility model is as follows: first, take out the coupling from the two external shafts 5 that need to be connected, and clamp the fixing block 4 of the external shaft 5 in the fixing groove 3 of the shaft sleeve 2, so as to avoid misaligned installation, and then strengthen the stability of the connection between the shaft sleeve 2 and the external shaft 5 by tightening the bolts 6, so that the coupling can drive the external shaft 5 to rotate more stably. Then, after the two ends of the coupling are connected to the two sets of external shafts 5, compress the fixing plates 17 and the torsion springs 18 on both sides of the first outer sleeve 12 and the second outer sleeve 14 so that the expansion tube 13 can be adjusted in length inside the first outer sleeve 12, and then the stud bolts 16 are passed through the adjusting screw holes 15 to complete the fixing of the length of the expansion tube 13, thereby meeting the purpose of adjusting the clearance of the coupling. After the adjustment and installation are completed, the external shaft 5 can be started, so that the external shaft 5 can drive the device connected to the other end of the external shaft 5 to move through the coupling, and then when the coupling is used and the vibration transmitted by the external shaft 5 causes the coupling to jump The rubber buffer gasket 8 and the buffer steel ball 9 in the embedded groove 7 of the main shaft sleeve 1 can give full play to the advantages of both. The elasticity and damping performance of the rubber buffer gasket 8 and the rolling compensation effect of the buffer steel ball 9 complement each other, and jointly absorb and disperse the vibration energy to reduce the vibration and noise of the shaft system. Then, at both ends of the expansion tube 13, a fixing plate 17, a torsion spring 18 and an anti-jump plate 19 are passed through the anti-jump plate 19 to contact the outer closing plate 10 to increase the buffering capacity inside the expansion tube 13. In this way, the vibration energy can be absorbed and dispersed during the operation of the mechanical equipment, thereby playing a role in shock absorption and anti-jump, so that the coupling has the ability to prevent jumping, greatly improving the stability of the coupling, reducing the vibration and impact caused by the jumping that affect the stability and accuracy of the equipment, and reducing the noise of the equipment caused by the jumping. Finally, after completing the installation and use of all the couplings according to the above operations, the device can be maintained daily, and the use process of the coupling that prevents jumping is completed.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coupling for preventing jumping, characterized in that: include A main shaft sleeve (1), which is a main body connected to an external shaft (5); An embedded groove (7) is arranged on the other side of the main shaft sleeve (1) and is used to reduce vibration transmitted from the external shaft (5); a rubber buffer gasket (8) is fixedly installed inside the embedded groove (7); a buffer steel ball (9) is arranged outside the rubber buffer gasket (8); and an external sealing plate (10) is fixedly installed outside the embedded groove (7); A fixing bolt (11) passes through the outside of the main shaft sleeve (1) and is used for connecting and installing the first outer tube sleeve (12); the first outer tube sleeve (12) is movably connected to the inside of the expansion tube (13); the other end of the expansion tube (13) is provided with a second outer tube sleeve (14); one end of the expansion tube (13) is fixedly installed with a fixing plate (17); one side of the fixing plate (17) is provided with a torsion spring (18); one end of the torsion spring (18) is fixedly installed with an anti-jump plate (19).

2. A coupling for preventing jumping according to claim 1, characterized in that: A shaft sleeve (2) is fixedly mounted on one side of the main shaft sleeve (1); a fixing slot (3) is provided inside the shaft sleeve (2); a fixing block (4) is movably connected inside the fixing slot (3); an external shaft (5) is fixedly mounted on one end of the fixing block (4); and a fastening bolt (6) penetrates the outside of the shaft sleeve (2).

3. A coupling for preventing jumping according to claim 2, characterized in that: A fixed clamping block (4) fixedly mounted on the outside of the external shaft (5) is engaged and connected with a fixed clamping slot (3) provided inside the shaft sleeve (2), and the fixed clamping block (4) and the fixed clamping slot (3) are used in conjunction with each other.

4. A coupling for preventing jumping according to claim 1, characterized in that: The number of the buffer steel balls (9) is set to be multiple, and the multiple buffer steel balls (9) are distributed in a ring array on the embedded groove (7).

5. The coupling for preventing jumping according to claim 1, characterized in that: An adjusting screw hole (15) is provided on the surface of the expansion joint tube (13), and a stud bolt (16) penetrates the outside of the first outer tube sleeve (12).

6. A coupling for preventing jumping according to claim 1, characterized in that: The anti-jump plate (19) is movably connected to the fixed plate (17), and the torsion springs (18) are distributed at equal intervals on the fixed plate (17).

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