Damping connecting device for motor and worm

Abstract

The utility model discloses a damping connecting device for a motor and a worm, which is used for connecting an output shaft of the motor and the worm, and comprises a first connecting piece, a damping piece and a second connecting piece, the first connecting piece is provided with a first connecting hole, and the output shaft is matched with the first connecting hole in an inserted mode. The second connecting piece is provided with a second connecting hole, and the worm is matched with the second connecting hole in an inserted mode. The first connecting piece is in transmission connection with the second connecting piece through the damping piece. Flexible connection between the output shaft of the motor and the worm is achieved through the damping connecting device, buffering is achieved through the flexible connecting body when the worm is stuck or the motor is locked, the damping and noise reduction effects are achieved, axial force transmitted by the worm can be transmitted to the output shaft of the motor after damping, and the motor is more stable in transmission. Therefore, the motor is prevented from being damaged by the instantly-increased axial force, and the stability and reliability of a motor transmission system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a shock-absorbing connection device for a motor and a worm. Background Art

[0002] In existing mechanical transmission systems, the connection between the worm and the motor usually adopts a flange structure or a rigid connection method of direct insertion. This rigid connection method is prone to vibration and noise when the motor is working; and when the worm is stuck or the motor is blocked, it is easy to affect each other, which will affect the life and working performance of the worm and the motor over time; in addition, there is axial force in the worm transmission, which will suddenly increase during startup or when the load suddenly increases. The rigid connection will transfer the instantaneous axial force to the motor shaft, which is easy to cause damage to the motor.

[0003] Therefore, developing a connection device that can effectively reduce vibration is of great significance to improving the stability and reliability of the motor transmission system. Summary of the invention

[0004] The purpose of the utility model is to provide a vibration-damping connection device between a motor and a worm gear to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A shock-absorbing connection device for a motor and a worm, used for connecting the output shaft of the motor and the worm, the shock-absorbing connection device comprises a first connecting member, a shock-absorbing member, and a second connecting member; the first connecting member is provided with a first connecting hole, and the output shaft is plug-fitted with the first connecting hole; the second connecting member is provided with a second connecting hole, and the worm is plug-fitted with the second connecting hole; the first connecting member is transmission-connected with the second connecting member through the shock-absorbing member.

[0006] Furthermore, a first slot is provided at one end of the shock absorber and a second slot is provided at the other end; the first connecting member is provided with a first pin, and the second connecting member is provided with a second pin; the first pin is plugged into and matched with the first slot, and the second pin is plugged into and matched with the second slot.

[0007] Furthermore, the first connecting hole and the second connecting hole are both regular octagonal holes, and the end of the output shaft and the end of the worm are both arranged as regular octagonal structures.

[0008] Furthermore, a plurality of the first slots and a plurality of the second slots are provided, and the first slots and the second slots are arranged to be cross-staggered with each other.

[0009] Furthermore, the shock absorbing component is made of colloid material.

[0010] The beneficial effect of the utility model is that the utility model realizes a flexible connection between the motor output shaft and the worm through the shock-absorbing connection device, and when the worm is stuck or the motor is stalled, it is buffered by the flexible connection body to achieve the shock-absorbing effect. The axial force of the worm transmission can be transmitted to the motor output shaft after shock absorption, thereby avoiding the destructive effect of the instantaneous axial force on the motor, and at the same time has a certain noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a cross-sectional view of the utility model.

[0013] Figure 2 It is a schematic diagram of the exploded structure of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the shock-absorbing connecting device in the utility model.

[0015] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner that does not affect the reader's understanding. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0018] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0019] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0020] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0021] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0022] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0023] like Figure 1 and Figure 2 As shown, a shock-absorbing connection device for a motor and a worm is used to connect the output shaft 11 of the motor 1 and the worm 2. The shock-absorbing connection device includes a first connection member 3, a shock-absorbing member 4 and a second connection member 5; the first connection member 3 is provided with a first connection hole 301, and the output shaft 11 is plugged into the first connection hole 301; the second connection member 5 is provided with a second connection hole 501, and the worm 2 is plugged into the second connection hole 501; the first connection member 3 is transmission-connected with the second connection member 5 through the shock-absorbing member 4.

[0024] As an example, the shock-absorbing connection device of this embodiment is used to connect the output shaft 11 of the motor 1 and the worm 2. The front and rear ends of the worm 2 are respectively provided with bearings, which are used to support the rotation of the worm. The shock-absorbing connection device includes a first connecting member 3, a second connecting member 5 and a shock-absorbing member 4 with a certain thickness. Among them, the first connecting member 3 is provided with a first connecting hole 301 that is adapted to the shape of the motor output shaft 11, and the motor output shaft 11 is inserted into the first connecting hole 301 and clamped to drive the first connecting member 3 to rotate. The second connecting member 5 is provided with a second connecting hole 501 that is adapted to the shape of the end of the worm 2, and the end of the worm 2 is inserted into the second connecting hole 501 and clamped to achieve synchronous transmission of the two. The first connecting member 3, the shock absorbing member 4 and the second connecting member 5 are sequentially arranged along the axial direction of the output shaft 11 of the motor 1, that is, the shock absorbing member 4 is arranged between the first connecting member 3 and the second connecting member 5, and the first connecting member 3 and the second connecting member 5 are respectively connected and fixed to the shock absorbing member 4 to realize synchronous transmission of the three, and a flexible connection is formed between the first connecting member 3 and the second connecting member 5 through the shock absorbing member 4. Therefore, the shock absorbing connection device is used to flexibly connect the motor 1 and the worm 2 into one body, and the shock absorbing connection device is driven to rotate by the motor 1, thereby driving the worm 2 to rotate synchronously.

[0025] When the motor 1 rotates, due to the flexible connection effect of the shock-absorbing connection device, when the worm 2 is stuck or the motor 1 is stalled, it is buffered by the flexible connection body to achieve the shock-absorbing effect. The axial force of the worm 2 can be transmitted to the motor output shaft 11 after shock absorption, thereby avoiding the destructive effect of the instantaneous axial force on the motor 1, improving the stability and reliability of the motor transmission system, and having a certain noise reduction effect.

[0026] In one embodiment, see Figure 2 and Figure 3 A first slot 401 is provided at one end of the shock absorber 4, and a second slot 402 is provided at the other end; the first connecting member 3 is provided with a first pin 31, and the second connecting member 5 is provided with a second pin 51; the first pin 31 is plugged into and matched with the first slot 401, and the second pin 51 is plugged into and matched with the second slot 402.

[0027] As an example, a first slot 401 and a second slot 402 are provided on the shock absorber 4, and the slot walls and the slot bottoms of the first slot 401 and the second slot 402 have a certain thickness so that the shock absorber 4 has a buffering and shock-absorbing effect in both the circumferential direction and the axial direction; the slot openings of the first slot 401 and the second slot 402 are arranged in opposite directions, the first slot 401 is used to connect to the output shaft 11 of the motor 1, and the second slot 402 is used to connect to the worm 2. The first connecting member 3 is provided with a first pin 31, and the second connecting member 5 is provided with a second pin 51. The first pin 31 is plugged into and matched with the first slot 401, and the second pin 51 is plugged into and matched with the second slot 402; at this time, the first pin 31 squeezes the slot wall and the slot bottom of the first slot 401 to compress the shock absorber 4, and the second pin 51 squeezes the slot wall and the slot bottom of the second slot 402 to compress the shock absorber 4, thereby realizing flexible contact between the first connecting member 3 and the second connecting member 5 and the shock absorber 4, and achieving a shock absorption effect; when the motor 1 rotates, the shock absorber 4 has a shock absorption effect in the circumferential rotation direction through the slot walls of the first slot 401 and the second slot 402, and the shock absorber 4 also has a shock absorption effect in the axial direction through the slot bottoms of the first slot 401 and the second slot 402, thereby avoiding the instantaneous axial force from damaging the motor 1.

[0028] In one embodiment, see Figure 2 and Figure 3 The first connecting hole 301 and the second connecting hole 501 are both regular octagonal holes, and the end of the output shaft 11 and the end of the worm 2 are both set to a regular octagonal structure.

[0029] As an example, the first connection hole 301 and the second connection hole 501 are both regular octagonal holes, and the ends of the output shaft 11 and the worm 2 are both set to regular octagonal structures that match the shapes of the first connection hole 301 and the second connection hole 501; the connection method using regular octagonal holes is more convenient to install, has uniform force, high torque transmission efficiency, and small errors than using commonly used connection holes in the shape of round shafts, double flat shafts, etc.; it is also more convenient to install, has high strength, large torque transmission, and low processing cost than using commonly used spline-shaped connection holes. In addition, after installation, the regular octagonal hole and the shaft end of the regular octagonal structure form an offset angle of 8-15°, so that the forces at various locations of the first connecting member 3 and the second connecting member 5 are not on the same straight line, so that the force transmitted to the shock absorber 4 is dispersed, and the shock absorption effect is better and more stable.

[0030] In one embodiment, see Figure 2 and Figure 3 A plurality of first slots 401 and a plurality of second slots 402 are provided, and the first slots 401 and the second slots 402 are arranged to be staggered and crossed with each other.

[0031] As an example, three first slots 401 and three second slots 402 are respectively provided, and correspondingly, three first pins 31 and three second pins 51 are also respectively provided; the first slots 401 and the second slots 402 are distributed along the circumferential direction of the shock absorber 4 in a cross-staggered manner, and the first slots 401 and the second slots 402 are also staggered in height. When the first connecting member 3 and the second connecting member 5 are respectively connected and fastened to the shock absorber 4, the first pin 31 and the second pin 51 are cross-engaged in the shock absorber 4, so that the shock absorber 4 is evenly stressed, and the torque is transmitted evenly and stably when the shock absorbing connecting device rotates.

[0032] In one embodiment, the shock absorbing member 4 is made of colloid material.

[0033] As an example, the shock absorbing member 4 is made of rubber, which has excellent shock absorbing and noise reducing effects; in other embodiments, other rubber shock absorbing materials may also be used.

[0034] Regarding the embodiments of the present utility model, it should also be noted that, in the absence of conflict, the embodiments of the present utility model and the features therein can be combined with each other to obtain new embodiments.

[0035] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. The protection scope of the utility model shall be based on the protection scope of the claims. Although the utility model has been disclosed as a preferred embodiment, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modify the technical content disclosed above to an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A vibration-damping connection device for a motor and a worm, used for connecting an output shaft (11) of a motor (1) and a worm (2), characterized in that: The shock-absorbing connecting device comprises a first connecting member (3), a shock-absorbing member (4) and a second connecting member (5); the first connecting member (3) is provided with a first connecting hole (301), and the output shaft (11) is plug-fitted with the first connecting hole (301); the second connecting member (5) is provided with a second connecting hole (501), and the worm (2) is plug-fitted with the second connecting hole (501); the first connecting member (3) is transmission-connected with the second connecting member (5) via the shock-absorbing member (4).

2. The vibration-damping connection device between a motor and a worm according to claim 1, characterized in that: One end of the shock absorbing member (4) is provided with a first slot (401), and the other end is provided with a second slot (402); the first connecting member (3) is provided with a first plug pin (31), and the second connecting member (5) is provided with a second plug pin (51); the first plug pin (31) is plugged into and matched with the first slot (401), and the second plug pin (51) is plugged into and matched with the second slot (402).

3. The vibration-damping connection device between a motor and a worm according to claim 2, characterized in that: The first connection hole (301) and the second connection hole (501) are both regular octagonal holes, and the end of the output shaft (11) and the end of the worm (2) are both arranged in a regular octagonal structure.

4. The vibration-damping connection device between a motor and a worm according to claim 2, characterized in that: A plurality of the first slots (401) and a plurality of the second slots (402) are provided, and the first slots (401) and the second slots (402) are arranged to cross and stagger with each other.

5. The vibration-damping connection device between a motor and a worm according to any one of claims 1 to 4, characterized in that: The shock absorbing component (4) is made of colloid material.

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