Detachable gear and shaft connecting structure

Abstract

The utility model discloses a detachable gear and shaft connecting structure which comprises a gear box and a metal output shaft which is installed on the gear box and is in transmission connection with a gear in the gear box, a gear set is arranged in the gear box, the front end of the gear set is in transmission connection with a metal support disc, and the metal support disc and the gear box are assembled in a rotating mode. A support disc assembling shaft sleeve is installed above the metal support disc, one end of the metal output shaft is detachably inserted into the support disc assembling shaft sleeve, and the surface of the end, inserted into the support disc assembling shaft sleeve, of the metal output shaft is provided with an oblique notch structure. When the metal output shaft is inserted into the support disc assembling shaft sleeve, the metal output shaft and the support disc assembling shaft sleeve are not loosened or staggered. The utility model is suitable for a motor, and when the metal output shaft of the motor rotates for a long time and the end part and the driving equipment are abraded, the metal output shaft can be independently replaced, so that the use cost of the motor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motor structures, in particular to a detachable gear and shaft connection structure. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. A motor usually includes a stator and a rotor. The stator includes a stator core and a coil winding wound on the stator core. The rotor includes a shaft and a rotor core sleeved on the shaft. A permanent magnet is provided on the outer edge of the rotor core. Motors are generally divided into DC motors and AC motors.

[0003] The output shaft is an indispensable structure in the motor. The existing motor output shaft and the gear box are fixedly connected, that is, one end of the existing motor output shaft is directly welded or stuck in the gear box and cannot be removed. When the motor is in long-term operation, the end of the output shaft and the connection position of the equipment are prone to wear. When the wear is severe, it will become loose, resulting in uneven force on the output shaft, affecting the operation of the equipment and the use of the motor. At this time, the entire motor needs to be replaced, and the replacement cost is high. Utility Model Content

[0004] The purpose of the utility model is to overcome the problem that in the prior art, the motor output shaft and the gear box are fixedly connected, and when the motor is in long-term operation, the end of the output shaft and the connection position of the equipment are prone to wear. When the wear is serious, it will become loose, resulting in uneven force on the output shaft, affecting the operation of the equipment and the use of the motor. At this time, the entire motor needs to be replaced, and the replacement cost is high. A detachable gear and shaft connection structure is provided, in which one end of the metal output shaft and the bracket disk assembly sleeve are detachably plug-in connected. Therefore, when the metal output shaft rotates for a long time, causing the end to wear against the driving device, the metal output shaft can be replaced independently, reducing the use cost of the motor.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model discloses a detachable gear and shaft connection structure, comprising a gear box and a metal output shaft installed on the gear box and connected to the gear transmission in the gear box, the gear box is provided with a gear set, the front end of the gear set is connected to a metal bracket disk, the metal bracket disk and the gear box are rotatably assembled, a bracket disk assembly sleeve is installed above the metal bracket disk, one end of the metal output shaft is detachably inserted in the bracket disk assembly sleeve, such a structural arrangement allows the metal output shaft to be replaced independently when the metal output shaft rotates for a long time, resulting in wear of the end and the driving device, thereby reducing the use cost of the motor, and the surface of one end of the metal output shaft inserted into the bracket disk assembly sleeve has an oblique cut structure, so that when the metal output shaft is inserted into the bracket disk assembly sleeve, there will be no loosening or misalignment with the bracket disk assembly sleeve, thereby improving the stability of the metal output shaft rotation when the motor is running.

[0007] Preferably, a metal bushing is provided between the inner side of the metal support disc and the support disc assembly sleeve, and the metal bushing can reduce the wear between the support disc assembly sleeve and the metal output shaft, thereby increasing the service life of the motor.

[0008] Preferably, the metal output shaft adopts a hollow structure with a shaft unloading hole in the center, and the shaft unloading hole extends from the metal output shaft to the internal position of the bracket disk assembly sleeve in the vertical direction. The metal output shaft and the bracket disk assembly sleeve are provided with pinning holes on both sides of the bottom of the shaft unloading hole, and a live pin is inserted in the pinning hole. Such a structural arrangement enables the metal output shaft and the bracket disk assembly sleeve to be locked and pinned together by the live pin in the pinning hole after the metal output shaft is assembled, thereby fixing the metal output shaft.

[0009] Preferably, a pressing column is installed at the lower part of the shaft unloading hole, and there is a gap between the pressing column and the bottom of the shaft unloading hole. The side surface of the pressing column is connected to the movable pin by a connecting piece, so that when the pressing column moves downward under pressure, the movable pin can be driven to move into the metal output shaft through the traction of the connecting piece. When the movable pin completely enters the metal output shaft, the metal output shaft can be moved upward and pulled out, thereby realizing the disassembly of the metal output shaft. Otherwise, it can be installed to realize the disassembly and assembly of the metal output shaft. The operation is convenient and quick. It only needs to insert a tool into the shaft unloading hole to press the pressing column. The connecting piece is made of soft material, such as rope, wire, etc., and at least one movable pin is provided.

[0010] Preferably, the lower opening of the interior of the shaft removal hole at the position of the pinning hole adopts an arc-shaped transition, which can prevent the connecting piece from being cut during disassembly.

[0011] Preferably, a reset spring is installed between the bottom of the unloading hole and the push column and between the push column and the movable pin. The reset spring is a spring. When the metal output shaft is assembled, the reset spring can push the push column upward and the movable pin to move horizontally. In this way, the movable pin can tighten the metal output shaft and the bracket disk assembly sleeve without being disturbed by external forces, thereby realizing the assembly and fixation of the metal output shaft.

[0012] Preferably, the bushing is also provided with a hole at the same linear position as the pinning hole for use in movable pinning.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] One end of the metal output shaft in the device is detachably connected to the mounting sleeve of the bracket disk. Therefore, when the metal output shaft rotates for a long time, causing the end and the driving device to wear, the metal output shaft can be replaced independently, thereby reducing the use cost of the motor.

[0015] When the metal output shaft in the device is disassembled, it is only necessary to insert a tool into the shaft removal hole to press the pressing column. When the pressing column moves downward under pressure, the traction of the connecting piece can drive the movable pin to move into the metal output shaft. When the movable pin completely enters the metal output shaft, the metal output shaft can be moved upward and pulled out, thereby realizing the disassembly of the metal output shaft. The operation is convenient and quick, and it is easy to replace it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the integral gearbox of the utility model;

[0018] Figure 3 It is a top view of the utility model;

[0019] Figure 4 It is a schematic diagram of the metal output shaft installation structure in the utility model.

[0020] Figure numerals: 1. gear box; 2. metal output shaft; 3. metal gasket; 4. shaft removal hole; 5. metal bracket plate; 6. bushing; 7. bracket plate assembly sleeve; 8. gear set; 9. reset spring; 10. press column; 11. connecting piece; 12. movable pin; 13. pin fixing hole. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 -Attached Figure 4, further illustrating the specific implementation of the utility model's detachable gear and shaft connection structure, which overcomes the problem in the prior art that the motor output shaft and the gear box are fixedly connected, and the end of the output shaft and the equipment connection position of the motor are prone to wear when the motor is in long-term operation. When the wear is severe, it will become loose, resulting in uneven force on the output shaft, affecting the operation of the equipment and the use of the motor. At this time, the entire motor needs to be replaced, and the replacement cost is high. The metal output shaft end in the device is detachably plug-in connected to the bracket disk assembly sleeve. Therefore, when the metal output shaft rotates for a long time, causing the end and the driving device to wear, the metal output shaft can be replaced independently, reducing the cost of using the motor. The utility model's detachable gear and shaft connection structure is not limited to the description of the following embodiments.

[0022] Embodiment 1:

[0023] This embodiment provides a detachable gear and shaft connection structure, such as Figure 1-4 As shown, it includes a gear box 1 and a metal output shaft 2 installed on the gear box 1 and connected to the gear transmission inside the gear box 1. A gear set 8 is arranged inside the gear box 1. The front end of the gear set 8 is connected to a metal bracket disk 5 for transmission. The metal bracket disk 5 is rotatably assembled with the gear box 1. A bracket disk assembly sleeve 7 is installed above the metal bracket disk 5. One end of the metal output shaft 2 is detachably inserted into the inside of the bracket disk assembly sleeve 7. The surface of one end of the metal output shaft 2 inserted into the inside of the bracket disk assembly sleeve 7 has an oblique cut structure, so that when the metal output shaft 2 is inserted into the inside of the bracket disk assembly sleeve 7, there will be no loosening or misalignment with the bracket disk assembly sleeve 7, thereby improving the rotation stability of the metal output shaft 2 when the motor is running. A metal gasket 3 is sleeved on the metal output shaft 2 at the contact position of the gear box 1 to reduce the wear between the metal output shaft 2 and the gear box 1.

[0024] By adopting the above technical solution:

[0025] When the metal output shaft 2 rotates for a long time, causing wear on the end and the driving device, the metal output shaft 2 can be replaced independently, thereby reducing the use cost of the motor.

[0026] Example 2

[0027] Based on Example 1, in this embodiment, a metal bushing 6 is installed between the inner side of the metal bracket disk 5 and the bracket disk assembly sleeve 7. The metal bushing 6 can reduce the wear between the bracket disk assembly sleeve 7 and the metal output shaft 2, thereby improving the service life of the motor.

[0028] The metal output shaft 2 adopts a hollow structure with a shaft unloading hole 4 in the center. The shaft unloading hole 4 extends from the metal output shaft 2 to the internal position of the bracket disk assembly sleeve 7 in the vertical direction. Pinning holes 13 are opened on both sides of the bottom of the shaft unloading hole 4 in the metal output shaft 2 and the bracket disk assembly sleeve 7, and a movable pin 12 is inserted and installed in the pinning hole 13.

[0029] By adopting the above technical solution:

[0030] After the metal output shaft 2 is assembled, the metal output shaft 2 and the support plate assembly sleeve 7 can be locked and pinned together by the movable pin 12 in the pinning hole 13 to achieve the fixation of the metal output shaft 2.

[0031] Example 3

[0032] On the basis of Example 2, in this embodiment, a pressing column 10 is installed at the lower part of the inside of the shaft unloading hole 4, and there is a gap between the pressing column 10 and the bottom of the shaft unloading hole 4. The side of the pressing column 10 is connected to the movable pin 12 through a connecting piece 11. It is only necessary to insert a tool into the shaft unloading hole 4 to press the pressing column 10. The connecting piece 11 is made of soft materials, such as rope, wire, etc., and at least one movable pin 12 is provided.

[0033] The lower opening of the shaft removal hole 4 located at the position of the pinning hole 13 adopts an arc-shaped transition, which can prevent the connecting piece 11 from being cut during disassembly.

[0034] A reset spring 9 is installed between the bottom of the unloading shaft hole 4 and the pressing column 10, and between the pressing column 10 and the movable pin 12. The reset spring 9 adopts a spring. When the metal output shaft 2 is assembled, the reset spring 9 can push the pressing column 10 to move upward and the movable pin 12 to move horizontally. In this way, the movable pin 12 can tighten the metal output shaft 2 and the bracket plate assembly sleeve 7 without being disturbed by external forces, thereby realizing the assembly and fixation of the metal output shaft 2.

[0035] The bushing 6 is also provided with a hole at the same linear position as the pinning hole 13 for use in the movable pinning of the movable pin 12 .

[0036] By adopting the above technical solution:

[0037] When the pressing column 10 moves downward under pressure, the traction of the connecting piece 11 can drive the movable pin 12 to move into the metal output shaft 2. When the movable pin 12 completely enters the metal output shaft 2, the metal output shaft 2 can be moved upward and pulled out, thereby realizing the disassembly of the metal output shaft 2. Conversely, it can be installed, realizing the disassembly and assembly of the metal output shaft 2, and the operation is convenient and quick.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A detachable gear and shaft connection structure, comprising a gear box (1) and a metal output shaft (2) mounted on the gear box (1) and connected to the gear inside the gear box (1), characterized in that: The gear box (1) is provided with a gear set (8) inside, the front end of the gear set (8) is drivingly connected to a metal support plate (5), and the metal support plate (5) is rotatably assembled with the gear box (1); A support disc assembly sleeve (7) is installed above the metal support disc (5), one end of the metal output shaft (2) is detachably inserted into the interior of the support disc assembly sleeve (7), and the surface of one end of the metal output shaft (2) inserted into the interior of the support disc assembly sleeve (7) has an oblique cut structure.

2. The detachable gear and shaft connection structure according to claim 1, characterized in that: A metal bushing (6) is sleeved between the inner side of the metal support disc (5) and the support disc assembly sleeve (7).

3. The detachable gear and shaft connection structure according to claim 1, characterized in that: The metal output shaft (2) adopts a hollow structure with a shaft unloading hole (4) in the center. The shaft unloading hole (4) extends from the metal output shaft (2) to the inner position of the support plate assembly sleeve (7) in the vertical direction. The metal output shaft (2) and the support plate assembly sleeve (7) are provided with pin holes (13) at the bottom of the shaft unloading hole (4) on both sides. A movable pin (12) is inserted and installed in the pin hole (13).

4. The detachable gear and shaft connection structure according to claim 3, characterized in that: A pressing column (10) is installed at the lower part of the shaft removal hole (4), a gap is provided between the pressing column (10) and the bottom of the shaft removal hole (4), and a side surface of the pressing column (10) is connected to the movable pin (12) via a connecting piece (11).

5. The detachable gear and shaft connection structure according to claim 4, characterized in that: The lower opening of the shaft removal hole (4) located at the position of the pinning hole (13) adopts an arc-shaped transition, which can prevent the connecting piece (11) from being cut during disassembly.

6. The detachable gear and shaft connection structure according to claim 5, characterized in that: A resetting elastic member (9) is installed between the bottom of the shaft removal hole (4) and the pressing column (10) and between the pressing column (10) and the movable pin (12), and the resetting elastic member (9) is a spring.

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