Mute transmission mechanism

Abstract

The utility model provides a mute transmission mechanism, which solves the problems that the working noise of a mechanical tentacle is large and the like, and comprises a transmission base, a transmission motor is fixed on the transmission base, and the output end of the transmission motor is in transmission connection with a lifting base arranged on the transmission base in a sliding mode through a belt wheel transmission assembly. A sound insulation assembly is arranged between the transmission base and the lifting base, and the belt wheel transmission assembly is provided with a vibration reduction assembly. The transmission device has the advantages of stable transmission, low working noise and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical tentacles, and in particular relates to a silent transmission mechanism. Background Art

[0002] Robot tentacles usually have two transmission modes in the Z-axis direction: belt drive and gear drive. When the belt drive mechanism is used in the Z-axis direction, its movement distance is determined by the driving wheel and the driven wheel. Although the belt drive mechanism does not make too much noise during operation, the limitation of the movement distance causes the size of the entire movement structure to be relatively large. The use of gear drive greatly reduces the structure size, but due to the fast operation, the meshing of the gears will produce a large noise.

[0003] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, the Chinese patent document discloses an automatic filling and handling device [202122629332.4], which includes a capping assembly, a filling assembly, and a handling assembly; the capping assembly includes a first driving source and a capping tentacle, and the first driving source drives the capping tentacle thereon to perform the capping operation; the filling assembly includes an X-axis slider mechanism, a first Z-axis slider mechanism and a filling gun, and the filling gun X-axis slider mechanism and the first Z-axis slider mechanism are used to adjust the up and down and left and right positions to complete the filling process; the handling assembly includes a Y-axis slider mechanism, a second Z-axis slider mechanism and a mechanical gripper, and the mechanical gripper adjusts the up and down and front and back positions through the Y-axis slider mechanism and the second Z-axis slider mechanism to complete the handling process.

[0004] The above solution solves the problem of the mechanical tentacle moving in the z direction to a certain extent, but the solution still has many shortcomings, such as high movement noise. Summary of the invention

[0005] The purpose of the utility model is to provide a silent transmission mechanism with reasonable design and effective reduction of the movement noise of mechanical tentacles in view of the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a silent transmission mechanism, including a transmission base, on which a transmission motor is fixed, the output end of the transmission motor is connected to a lifting base slidably mounted on the transmission base through a pulley transmission assembly, a sound insulation assembly is arranged between the transmission base and the lifting base, and the pulley transmission assembly is equipped with a vibration reduction assembly.

[0007] In the above-mentioned silent transmission mechanism, the pulley transmission assembly includes a first pulley assembly connected to the transmission motor, the first pulley assembly is transmission-connected to the second pulley assembly, and the second pulley assembly is connected to the transmission base.

[0008] In the above-mentioned silent transmission mechanism, the first pulley assembly includes a first transmission pulley connected to the output end of the transmission motor, a first transmission belt body that is circumferentially slidably installed on the lifting base and is tightly fitted and pressed against the first transmission pulley, and a pair of second transmission pulleys are rotatably installed on the lifting base, and the second transmission pulleys are tightly fitted and pressed against the first transmission belt body.

[0009] In the above-mentioned silent transmission mechanism, the second pulley assembly includes a third transmission pulley connected to the second transmission pulley, the second transmission belt body is transmission-connected between the third transmission pulleys, a transmission block is installed on the transmission base, and the transmission block is fixedly connected to the second transmission belt body.

[0010] In the above-mentioned silent transmission mechanism, a sliding guide rail extending in the vertical direction is installed between the lifting base and the transmission base, the lifting base is provided with a first slide groove along the circumferential direction for the first transmission belt body to be driven, and the lifting base is provided with a second slide groove on the side opposite to the transmission base for the second transmission belt body to be inserted into and transmitted.

[0011] In the above-mentioned silent transmission mechanism, a limit groove and a limit strip which are slidably connected to each other and extend in the vertical direction are installed between the transmission block and the transmission base, and a locking knob which is threadedly connected to the transmission block and presses against the transmission base.

[0012] In the above-mentioned silent transmission mechanism, the vibration reduction assembly includes a flexible layer attached to the first transmission belt body and the second transmission belt body, the flexible layer is attached to the lubricating layer, and the lubricating layer is relatively attached to the lifting base.

[0013] In the above-mentioned silent transmission mechanism, the sound insulation component includes an isolation plate fixedly connected to the transmission base, the lifting base is covered by the isolation plate, and a sound insulation layer is attached to the inner side of the isolation plate.

[0014] In the above-mentioned silent transmission mechanism, a mounting plate extending outward is arranged on the transmission base, and a strip-shaped mounting hole is opened on the mounting plate.

[0015] In the above-mentioned silent transmission mechanism, a limit seat opposite to the lifting base is fixed on the upper end of the transmission base, a limit switch is installed on the transmission base, and a limit contact rod opposite to the limit switch is fixed on the lifting base.

[0016] Compared with the existing technology, the advantages of the utility model are: a pulley transmission structure is adopted instead of a gear transmission structure, and the sound insulation component and the vibration reduction component are cooperated to effectively reduce the movement noise of the lifting base; the pulley transmission component adopts a double pulley transmission structure, which overcomes the problem of limited movement stroke of the conventional pulley structure; a limited position structure is set between the transmission base and the lifting base, and the movement range of the lifting base can be adjusted according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is another structural schematic diagram of the utility model;

[0019] Figure 3 It is another structural schematic diagram of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the lifting base of the utility model;

[0021] Figure 5 It is a partial cross-sectional view of the utility model;

[0022] In the figure, a transmission base 1, a mounting plate 11, a strip mounting hole 12, a limit seat 13, a limit switch 14, a limit touch rod 15, a transmission motor 2, a pulley transmission assembly 3, a first transmission pulley 31, a first transmission belt body 32, a second transmission pulley 33, a third transmission pulley 34, a second transmission belt body 35, a transmission block 36, a lifting base 4, a sliding guide rail 41, a first slide groove 42, a second slide groove 43, a limit groove 44, a limit strip 45, a locking knob 46, a sound insulation assembly 5, an isolation plate 51, a sound insulation layer 52, a vibration reduction assembly 6, a flexible layer 61, and a lubricating layer 62. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-5 As shown, a silent transmission mechanism includes a transmission base 1 connected to a guide rail structure, and the transmission base 1 moves in a horizontal direction as a whole. A transmission motor 2 is fixed on the transmission base 1 to provide a lifting torque, and the output end of the transmission motor 2 is connected to a lifting base 4 slidably mounted on the transmission base 1 through a pulley transmission assembly 3. The lifting base 4 drives the tentacles to press down to complete the pressing action during the up and down sliding process. In order to further reduce the working noise of the pulley transmission assembly 3, a sound insulation assembly 5 is provided between the transmission base 1 and the lifting base 4 for external sound insulation, and the pulley transmission assembly 3 is equipped with a vibration reduction assembly 6 to reduce the friction movement noise.

[0025] Specifically, unlike the conventional single pulley assembly, the pulley transmission assembly 3 in the present application includes a first pulley assembly connected to the transmission motor 2, the first pulley assembly is transmission-connected to the second pulley assembly, and the second pulley assembly is connected to the transmission base 1. The lifting base 4 as a whole slides relative to the transmission base 1, and since the pulley assembly is movably mounted on the lifting base 4, the lifting base 4 has a larger motion stroke.

[0026] In depth, similar to a conventional pulley structure, the first pulley assembly includes a first transmission pulley 31 connected to the output end of the transmission motor 2, a first transmission belt body 32 that is pressed against the first transmission pulley 31 is slidably mounted on the lifting base 4 along the circumferential direction, and a pair of second transmission pulleys 33 are rotatably mounted on the lifting base 4, and the second transmission pulleys 33 are pressed against the first transmission belt body 32. When the transmission motor 2 is started, the first transmission pulley 31 drives the first transmission belt body 32 to rotate relative to the lifting base 4, and the second transmission pulley 33 also rotates accordingly.

[0027] Further, the second pulley assembly includes a third transmission pulley 34 connected to the second transmission pulley 33, a second transmission belt body 35 is transmission-connected between the third transmission pulley 34, a transmission block 36 is installed on the transmission base 1, and the transmission block 36 is fixedly connected to the second transmission belt body 35. The second transmission belt body 35 rotates relative to the lifting base 4, and since the transmission block 36 remains fixed, the lifting base 4 moves up and down relative to the transmission block 36 and the transmission base 1.

[0028] Furthermore, a sliding guide rail 41 extending in the vertical direction is installed between the lifting base 4 and the transmission base 1, and a first slide groove 42 for the first transmission belt body 32 to transmit is opened in the circumferential direction of the lifting base 4, and a second slide groove 43 for the second transmission belt body 35 to be inserted and transmitted is opened on the side of the lifting base 4 opposite to the transmission base 1. The first slide groove 42 and the second slide groove 43 respectively limit the transmission belt body to ensure the torque transmission stability of the transmission belt pulley and the transmission belt body.

[0029] In addition, similar to the above-mentioned guide rail structure, a limit groove 44 and a limit bar 45 are installed between the transmission block 36 and the transmission base 1, which are slidably connected to each other and extend in the vertical direction. A locking knob 46 is threadedly connected to the transmission block 36 and pressed against the transmission base 1. The vertical position of the transmission block 36 can be adjusted according to actual needs, thereby adjusting the movement stroke of the lifting base 4.

[0030] At the same time, since the main source of the pulley structure noise is friction, the vibration reduction assembly 6 includes a flexible layer 61 bonded to the first transmission belt body 32 and the second transmission belt body 35, the flexible layer 61 is bonded with a lubricating layer 62, and the lubricating layer 62 is relatively bonded to the lifting base 4 to reduce their relative friction, while not affecting the normal transmission of the transmission belt body and the transmission pulley.

[0031] It can be seen that the sound insulation component 5 adopts a modular assembly structure, including an isolation plate 51 fixedly connected to the transmission base 1, the isolation plate 51 is assembled and fixed by sliding and plugging, the lifting base 4 is covered by the isolation plate 51, and a sound insulation layer 52 made of cotton wool is attached to the inner side of the isolation plate 51.

[0032] Obviously, in order to facilitate the assembly and fixation of the transmission base 1, a mounting plate 11 extending outward is provided on the transmission base 1, and a strip-shaped mounting hole 12 is opened on the mounting plate 11. The transmission base 1 is locked and fixed by screws.

[0033] Preferably, a limit seat 13 opposite to the lifting base 4 is fixed on the upper end of the transmission base 1, a limit switch 14 is installed on the transmission base 1, and a limit contact rod 15 opposite to the limit switch 14 is fixed on the lifting base 4. When the limit switch 14 contacts the limit contact rod 15, a signal is sent, and feedback adjustment is realized in cooperation with the transmission motor 2.

[0034] In summary, the principle of this embodiment is that a lifting base 4 is slidably mounted on the transmission base 1, the driving torque is provided by the transmission motor 2, the pulley transmission assembly 3 drives the lifting base 4 to move up and down relative to the transmission base 1, and the sound insulation assembly 5 and the vibration reduction assembly 6 eliminate the working noise of the pulley transmission assembly 3 during its movement.

[0035] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0036] Although the present invention uses the terms such as transmission base 1, mounting plate 11, strip mounting hole 12, limit seat 13, limit switch 14, limit contact rod 15, transmission motor 2, pulley transmission assembly 3, first transmission pulley 31, first transmission belt body 32, second transmission pulley 33, third transmission pulley 34, second transmission belt body 35, transmission block 36, lifting base 4, sliding guide rail 41, first slide groove 42, second slide groove 43, limit groove 44, limit strip 45, locking knob 46, sound insulation assembly 5, isolation plate 51, sound insulation layer 52, vibration reduction assembly 6, flexible layer 61, lubricating layer 62, etc. more frequently, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A silent transmission mechanism, comprising a transmission base (1), a transmission motor (2) being fixed on the transmission base (1), an output end of the transmission motor (2) being transmission-connected to a lifting base (4) slidably mounted on the transmission base (1) through a pulley transmission assembly (3), characterized in that: A sound insulation component (5) is arranged between the transmission base (1) and the lifting base (4), and the pulley transmission component (3) is equipped with a vibration reduction component (6).

2. A silent transmission mechanism according to claim 1, characterized in that: The pulley transmission assembly (3) comprises a first pulley assembly connected to a transmission motor (2), the first pulley assembly being transmission-connected to a second pulley assembly, and the second pulley assembly being connected to a transmission base (1).

3. A silent transmission mechanism according to claim 2, characterized in that: The first pulley assembly comprises a first transmission pulley (31) connected to the output end of the transmission motor (2); the lifting base (4) is slidably mounted with a first transmission belt body (32) which is fitted and pressed against the first transmission pulley (31) in the circumferential direction; a pair of second transmission pulleys (33) are rotatably mounted on the lifting base (4); the second transmission pulleys (33) are fitted and pressed against the first transmission belt body (32).

4. A silent transmission mechanism according to claim 3, characterized in that: The second pulley assembly comprises a third transmission pulley (34) connected to the second transmission pulley (33); a second transmission belt body (35) is transmission-connected between the third transmission pulley (34); a transmission block (36) is installed on the transmission base (1); and the transmission block (36) is fixedly connected to the second transmission belt body (35).

5. A silent transmission mechanism according to claim 4, characterized in that: A sliding guide rail (41) extending in a vertical direction is installed between the lifting base (4) and the transmission base (1); a first sliding groove (42) is formed in the circumferential direction of the lifting base (4) for transmission of the first transmission belt body (32); and a second sliding groove (43) is formed on the side of the lifting base (4) opposite to the transmission base (1) for the second transmission belt body (35) to be inserted and transmitted.

6. A silent transmission mechanism according to claim 4, characterized in that: A limiting groove (44) and a limiting strip (45) which are slidably connected to each other and extend in the vertical direction are installed between the transmission block (36) and the transmission base (1). A locking knob (46) which is threadedly connected to the transmission block (36) and presses against the transmission base (1) is provided.

7. A silent transmission mechanism according to claim 4, characterized in that: The vibration reduction assembly (6) comprises a flexible layer (61) bonded to the first transmission belt body (32) and the second transmission belt body (35); the flexible layer (61) is bonded to a lubricating layer (62), and the lubricating layer (62) is relatively bonded to the lifting base (4).

8. A silent transmission mechanism according to claim 1, characterized in that: The sound insulation component (5) comprises an isolation plate (51) fixedly connected to the transmission base (1), the lifting base (4) is covered by the isolation plate (51), and a sound insulation layer (52) is attached to the inner side of the isolation plate (51).

9. A silent transmission mechanism according to claim 1, characterized in that: The transmission base (1) is provided with a mounting plate (11) extending outwards, and the mounting plate (11) is provided with a strip-shaped mounting hole (12).

10. A silent transmission mechanism according to claim 1, characterized in that: A limit seat (13) opposite to the lifting base (4) is fixed on the upper end of the transmission base (1), a limit switch (14) is installed on the transmission base (1), and a limit contact rod (15) opposite to the limit switch (14) is fixed on the lifting base (4).

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