A harmonic plus anti-backlash gear two-stage transmission device

Abstract

The present invention discloses a harmonic plus anti-backlash gear two-stage transmission device, wherein a cable is arranged below a fixed seat, a cable protective sleeve is arranged between the fixed seat and the cable, the cable comprises a first cable and a second cable, a driven gear is arranged between the first cable and the second cable, a shaft ring is arranged on one side of the driven gear, an output member is arranged below the shaft ring, an anti-backlash gear is arranged below the driven gear, a key is arranged between the driven gear and the anti-backlash gear, a transmission shaft is arranged at the rear end of the anti-backlash gear, the transmission shaft passes through a fixed plate and is connected to a harmonic reducer and a servo motor, the input end of the harmonic reducer is connected to the transmission shaft, and the output end of the harmonic reducer is connected to the servo motor. The present invention arranges a harmonic reducer in the transmission device, and performs zero backlash transmission on the gears through the harmonic reducer, which has the characteristics of simple and compact structure, further improves the precision, and ensures that the operation precision and service life of the device are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, in particular to a harmonic plus backlash-eliminating gear two-stage transmission device. Background Art

[0002] At present, metal parts are processed in some factories, and the processing includes multiple steps, one of which is to put the materials to be processed into the processing area. At present, factories often use manual handling and placement methods, that is, putting the materials into the processing area one by one by hand. The handling speed is slow and requires a lot of labor. When encountering some materials with relatively large mass, it will be inconvenient for workers to carry them, which is time-consuming and labor-intensive, and the work efficiency is low. In addition, due to the risks of labor injury such as high temperature, high pressure, toxicity and harmfulness in some processing and manufacturing equipment or environments, the use of manual handling will seriously affect people's health. With the progress of society and the continuous improvement of the level of industrial automation, the manufacturing industry has begun to transform towards automation, and the research and development technology of robots has also been improved. At present, mainstream reducers such as RV, harmonic, planetary, cycloid, etc. do not have zero clearance and clearance compensation functions after gear wear, and the processing precision is high and the process is complicated. In addition, dual-gear output reducer speed reduction and clearance elimination or variable lead worm gear transmission speed reduction and clearance elimination are generally used, which makes the equipment inconvenient to install and the work is not easy to control, affecting the processing accuracy and service life of the equipment. Summary of the invention

[0003] The object of the present invention is to provide a two-stage transmission device with harmonic and anti-backlash gears, which realizes zero backlash transmission and automatic compensation of clearance by adding harmonic transmission gears in the transmission device, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a harmonic plus anti-backlash gear two-stage transmission device, comprising a fixed seat, a cable, a cable protective cover, an output member, a shaft ring, a driven gear, an anti-backlash gear, a key, a transmission shaft, a fixed plate, a harmonic reducer and a servo motor, the cable is arranged below the fixed seat, a cable protective cover is arranged between the fixed seat and the cable, the cable comprises a first cable and a second cable, a driven gear is arranged between the first cable and the second cable, a shaft ring is arranged on one side of the driven gear, an output member is arranged below the shaft ring, an anti-backlash gear is arranged below the driven gear, a key is arranged between the driven gear and the anti-backlash gear, a transmission shaft is arranged at the rear end of the anti-backlash gear, the transmission shaft passes through the fixed plate and is connected to the harmonic reducer and the servo motor, the input end of the harmonic reducer is connected to the transmission shaft, and the output end of the harmonic reducer is connected to the servo motor.

[0005] Preferably, the harmonic reducer is arranged on the reducer bracket, and the reducer bracket is arranged below the servo motor.

[0006] Preferably, the collar is disposed below the second cable, and the collar surrounds the outer side of the second cable.

[0007] Preferably, the transmission shaft is movably connected to the fixing plate via a nut.

[0008] Preferably, a motor bracket is provided below the servo motor, and one side of the motor bracket is fixedly connected to the reducer bracket.

[0009] Preferably, a mounting hole is provided at the bottom of the fixing seat, and there are four mounting holes in total, and the mounting holes are centrally symmetrical about the fixing seat.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] (1) The present invention sets a harmonic reducer in the transmission device, and transmits the gears with zero backlash through the harmonic reducer, which has the characteristics of simple and compact structure, further improves the accuracy, and ensures that the operating accuracy and service life of the device are effectively improved.

[0012] (2) The present invention arranges a first cable and a second cable in the transmission device, connects the cables to the driven gear, and then drives the anti-backlash gear to be linked with the transmission shaft to achieve zero backlash transmission, and the manufacturing process is simple.

[0013] (3) The present invention provides cable protective covers on the outer rings of the first cable and the second cable, thereby protecting the cables from external corrosion.

[0014] (4) The present invention realizes zero backlash transmission by setting a key between the driven gear and the anti-backlash gear, and driving the gears to work in conjunction with each other through the key.

[0015] (5) The present invention not only improves the accuracy but also improves the working quality of the device during operation by using a servo motor in combination with a harmonic reducer for harmonic transmission.

[0016] (6) The present invention provides a mounting hole below the fixing seat. Through the provision of the mounting hole, the user can install the transmission device more easily, so that the transmission device can be easily installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structure diagram of the transmission device.

[0018] In the figure: 1-fixed seat; 2-cable; 3-cable protective cover; 4-output member; 5-shaft collar; 6-driven gear; 7-anti-backlash gear; 8-transmission shaft; 9-fixed plate; 10-harmonic reducer; 11-servo motor; 12-key; 13-nut; 14-motor bracket; 15-reducer bracket; 16-mounting hole; 21-first cable; 22-second cable. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1The present invention provides a technical solution: a harmonic plus anti-backlash gear two-stage transmission device, including a fixed seat 1, a cable 2, a cable protective cover 3, an output member 4, a shaft ring 5, a driven gear 6, an anti-backlash gear 7, a transmission shaft 8, a fixed plate 9, a harmonic reducer 10 and a servo motor 11, the cable 2 is arranged below the fixed seat 1, a cable protective cover 3 is arranged between the fixed seat 1 and the cable 2, and the cable protective cover 3 is arranged on the outer ring of the first cable 21 and the second cable 22, so as to protect the cable 2 from being corroded by the outside world, and the cable 2 includes a first cable 21 and a second cable 2 2, by arranging the first cable 21 and the second cable 22 in the transmission device, connecting the driven gear 6 through the cable 2, and then driving the anti-backlash gear 7 to link with the transmission shaft 8, zero backlash transmission is achieved, the manufacturing process is simple, a driven gear 6 is arranged between the first cable 21 and the second cable 22, a shaft ring 5 is arranged on one side of the driven gear 6, the shaft ring 5 is arranged below the second cable 22, the shaft ring 5 surrounds the outer side of the second cable 22, an output member 4 is arranged below the shaft ring 5, an anti-backlash gear 7 is arranged below the driven gear 6, and a key 1 is arranged between the driven gear 6 and the anti-backlash gear 7 2. By setting a key 12 between the driven gear 6 and the anti-backlash gear 7, the gear linkage is driven by the key 12 to realize zero backlash transmission. A transmission shaft 8 is provided at the rear end of the anti-backlash gear 7. The transmission shaft 8 penetrates the fixed plate 9 and is connected with the harmonic reducer 10 and the servo motor 11. The transmission shaft 8 is movably connected with the fixed plate 9 through a nut 13. A motor bracket 14 is provided under the servo motor 11. One side of the motor bracket 14 is fixedly connected with the reducer bracket 15. The harmonic reducer 10 is arranged on the reducer bracket 15. The reducer bracket 15 is arranged under the servo motor 11. The input end of the reducer 10 is connected to the transmission shaft 8, and the output end of the harmonic reducer 10 is connected to the servo motor 11. By cooperating with the harmonic reducer 10 for harmonic transmission during the operation of the servo motor 11, not only the accuracy is improved, but also the working quality of the device is improved. The fixing seat 1 is provided with mounting holes 16. There are four mounting holes 16. The mounting holes 16 are centrally symmetrical about the fixing seat 1. By arranging the mounting holes below the fixing seat 1 and the arrangement of the mounting holes 16, the user can more easily install the transmission device, so that the transmission device can achieve the effect of being easy to install.

[0021] How to use

[0022] The servo motor 11 and the harmonic reducer 10 are started to drive the first cable 21, the second cable 22, the driven gear 6, the anti-backlash gear 7 and the transmission shaft 8 in the cable 2 to operate, so that the output end of the harmonic reducer 10 is connected to the servo motor 11. By coordinating the servo motor 11 with the harmonic reducer 10 for harmonic transmission, not only the accuracy is improved, but also the working quality of the device during operation is improved.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A harmonic plus anti-backlash gear two-stage transmission device, characterized in that: It includes a fixing seat, a cable, a cable protective cover, an output member, a collar, a driven gear, an anti-backlash gear, a key, a transmission shaft, a fixing plate, a harmonic reducer and a servo motor, wherein the cable is arranged below the fixing seat, a cable protective cover is arranged between the fixing seat and the cable, the cable includes a first cable and a second cable, a driven gear is arranged between the first cable and the second cable, a collar is arranged on one side of the driven gear, an output member is arranged below the collar, an anti-backlash gear is arranged below the driven gear, a key is arranged between the driven gear and the anti-backlash gear, a transmission shaft is arranged at the rear end of the anti-backlash gear, the transmission shaft passes through the fixing plate and is connected to the harmonic reducer and the servo motor, the input end of the harmonic reducer is connected to the transmission shaft, and the output end of the harmonic reducer is connected to the servo motor, The harmonic reducer is arranged on a reducer bracket, the reducer bracket is arranged below the servo motor, the shaft ring is arranged below the second cable, and the shaft ring surrounds the outer side of the second cable.

2. A harmonic plus anti-backlash gear two-stage transmission device according to claim 1, characterized in that: The transmission shaft is movably connected to the fixing plate through a nut.

3. The harmonic plus anti-backlash gear two-stage transmission device according to claim 1, characterized in that: A motor bracket is provided below the servo motor, and one side of the motor bracket is fixedly connected to the reducer bracket.

4. The harmonic plus anti-backlash gear two-stage transmission device according to claim 1, characterized in that: The bottom of the fixing seat is provided with mounting holes, and there are four mounting holes in total, and the mounting holes are symmetrical about the center of the fixing seat.

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