U-shaped motor transmission structure

Abstract

The utility model belongs to the technical field of motor transmission. The problem that an existing motor is short in service life is solved. The U-shaped motor transmission structure comprises a transmission shell cover and a servo motor, a transmission shell is fixedly arranged at the top of the transmission shell cover, a transmission mechanism is arranged in an inner cavity of the transmission shell cover, and an output worm gear lead screw is arranged on one side of the transmission shell in a penetrating mode. Single-tooth transmission is replaced by a double-end gear structure, U-shaped transmission is achieved, transmission efficiency is improved, the input worm gear on the transmission shaft of the motor drives the helical teeth at one end of the double-end worm gear, the worm gear at the other end of the double-end worm gear connected with the helical teeth drives the output lead screw connected with the worm gear, meanwhile, installation space is saved, noise is lowered, and service life is prolonged. A polybutylene terephthalate material is adopted to replace a metal shell, so that the overall light weight of the motor is realized, which cannot be realized by adopting a metal shell in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor transmission, and particularly relates to a U-shaped motor transmission structure. Background Art

[0002] In the field of motor transmission structure design, the design and manufacturing technology of gear structure is the key link. The traditional motor transmission structure usually adopts single-tooth transmission. Although this structure is simple, it has low transmission efficiency and occupies a large space. In order to solve this problem, some designers began to use double-headed gear structure for transmission. This structure can improve transmission efficiency. In addition, the casing material of the motor also has an important influence on the performance of the motor. Traditional motor casings are mostly made of metal materials.

[0003] After searching, the patent number is CN220510913U, and the name is a utility model of a motor transmission structure, including a shell. Through research and analysis, it is found that although the transmission structure has advantages such as two-way adjustment function, the weight of the motor is still large because it uses metal material as the shell, which is not conducive to the lightweight of the motor. Secondly, the manufacturing process of the double-headed gear is relatively complicated, resulting in high production costs, which is not conducive to large-scale production. Finally, since the working environment of the motor is relatively complex, the gears and screws may wear after long-term use, affecting the service life of the motor. Utility Model Content

[0004] The purpose of the utility model is to provide a U-shaped motor transmission structure, which adopts a double-headed gear structure and an injection-molded screw, which can effectively improve the transmission efficiency of the motor, save installation space, reduce noise, and meet the needs of the motor transmission equipment manufacturing field for high efficiency, compactness, and low noise. Secondly, polybutylene terephthalate material is used to replace the metal shell, so as to achieve the overall lightweight of the motor and meet the needs of the mechanical transmission device design field for lightweight and high efficiency. Finally, the manufacturing process of the double-headed gear is simplified, the production cost is reduced, and the advantages of the light material application field for low cost and high efficiency are met. The problem of motor transmission shell material, how to achieve the lightweight of the motor transmission shell while ensuring the strength of the motor, the complex manufacturing process of the double-headed gear and the high production cost, and the problem that the gears and the screw are easy to wear in a complex working environment, which affects the service life of the motor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a U-shaped motor transmission structure, including a transmission shell cover and a servo motor, a transmission housing is fixedly arranged on the top of the transmission shell cover, a transmission mechanism is arranged in the inner cavity of the transmission shell cover, and an output worm gear screw is penetrated through one side of the transmission shell.

[0006] The U-shaped motor transmission structure mainly uses a servo motor. The motor uses a servo motor as a power source. By changing the shape and position of the helical gear on the motor transmission shaft, it can better drive the double-headed worm gear, thereby improving the stability and accuracy of the motor, which is impossible to achieve using ordinary motors in the prior art.

[0007] Preferably, the transmission mechanism includes a baffle, which is welded to the top of the transmission housing cover, the inner cavity of the transmission housing is provided with a double-headed worm gear, the surface of the transmission housing cover is installed with a wedge-shaped adjustment block, the transmission shaft of the servo motor passes through the inner cavity of the transmission housing and is fixedly provided with an input worm gear, the surface of the output worm gear screw is installed with an output external block, and the surface mounting sleeve of the output worm gear screw is provided with a bearing seat.

[0008] During actual manufacturing, the servo motor, input worm gear, double-headed worm gear and output worm gear screw are coordinated, and a double-headed gear structure is adopted to replace the single-tooth transmission, thereby realizing U-shaped transmission and improving transmission efficiency. The input worm gear on the motor transmission shaft drives the helical teeth at one end of the double-headed worm gear, and the worm gear at the other end of the double-headed worm gear connected to the helical teeth drives the output screw connected to it, thereby saving installation space and reducing noise, which is impossible to achieve with the existing technology.

[0009] Preferably, bolts are provided through the surface of the transmission housing cover, one end of the bolts penetrates the inner wall of the transmission housing and is threadedly connected thereto, and the number of the bolts is several. The U-shaped motor transmission structure can firmly connect the transmission housing cover and the transmission housing mainly through bolts, thereby facilitating its assembly and firmly connecting two or more objects together, which can ensure the integrity and stability of the structure and prevent safety accidents caused by loosening or separation.

[0010] Preferably, the double-headed worm gear includes helical teeth, the surface of the helical teeth is welded with peripheral bevel teeth, the input worm gear is meshed with the peripheral bevel teeth, the output worm gear screw is meshed with the helical teeth, the side opposite to the baffle is rotatably connected with a metal inner shaft, and the double-headed worm gear is fixedly sleeved on the surface of the metal inner shaft.

[0011] In actual manufacturing, the metal inner shaft, spiral teeth and outer peripheral helical teeth are matched, and the double-headed worm gear adopts a metal inner shaft, and the outer peripheral helical teeth and spiral teeth are formed by integral injection molding. This not only improves the strength of the gear, simplifies the manufacturing process, and reduces the production cost. This is something that cannot be achieved by using metal materials and split injection molding in the prior art.

[0012] The double-headed gear structure is used to replace the single-tooth transmission, realizing U-shaped transmission and improving transmission efficiency. The input worm gear on the motor drive shaft drives the helical teeth at one end of the double-headed worm gear, and the worm gear at the other end of the double-headed worm gear connected to the helical teeth drives the output lead screw connected to it. At the same time, it saves installation space and reduces noise, which is impossible to achieve with the existing technology.

[0013] Preferably, the transmission housing is made of polybutylene terephthalate material, and the bearing seat is in contact with the wedge-shaped adjustment block. During actual manufacturing, the transmission shell cover and the transmission housing are matched, and polybutylene terephthalate material is used instead of the metal housing, thereby achieving the overall lightweight of the motor, which is impossible to achieve using a metal housing in the prior art.

[0014] Preferably, a back plate is welded on the surface of the transmission housing, and a shaft sleeve is welded on the surface of the transmission housing. The shaft sleeve is sleeved on the surface of the output worm gear screw. The U-shaped motor transmission structure is mainly through the back plate. By setting the back plate, it is convenient to install this structure with the outside, thereby improving its use.

[0015] Preferably, the output worm gear screw includes a metal wire rod, and the surface of the metal wire rod is provided with injection-molded spiral teeth. The U-shaped motor transmission structure is mainly achieved through the output worm gear screw. The structure of the metal wire rod plus injection-molded spiral teeth further improves the transmission efficiency, while also saving installation space and reducing noise. This is impossible to achieve using a single material and a single structure in the prior art.

[0016] Compared with the prior art, the advantages of the turntable mechanism of the spherical machining machine are as follows: the use of a double-headed gear structure and an injection molded screw can effectively improve the transmission efficiency of the motor, save installation space, reduce noise, and meet the requirements of the motor transmission equipment manufacturing field for high efficiency, compactness, and low noise; secondly, the use of polybutylene terephthalate material to replace the metal shell realizes the overall lightweight of the motor, meeting the requirements of the mechanical transmission device design field for lightweight and high efficiency; finally, the manufacturing process of the double-headed gears is simplified, the production cost is reduced, and the requirements of the lightweight material application field for low cost and high efficiency are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0018] Figure 2 It is a bottom-up stereoscopic schematic diagram of the utility model.

[0019] Figure 3 It is a sectional stereoscopic schematic diagram of the utility model.

[0020] Figure 4 It is a partial three-dimensional schematic diagram of the utility model.

[0021] In the figure: 1. Transmission housing cover; 2. Servo motor; 3. Transmission housing; 4. Transmission mechanism; 5. Output worm gear screw; 6. Baffle; 7. Double-headed worm gear; 8. Wedge-shaped adjustment block; 9. Input worm gear; 10. Output external block; 11. Bearing seat; 12. Bolt; 13. Helical teeth; 14. Peripheral helical teeth; 15. Metal inner shaft; 16. Back plate; 17. Bushing. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the U-shaped motor transmission structure includes a transmission shell cover 1 and a servo motor 2. A transmission housing 3 is fixedly arranged on the top of the transmission shell cover 1. A transmission mechanism 4 is arranged in the inner cavity of the transmission shell cover 1. An output worm gear screw 5 is penetrated through one side of the transmission shell 3.

[0024] During actual manufacturing, the transmission mechanism 4 includes a baffle 6, which is welded to the top of the transmission housing cover 1, the inner cavity of the transmission housing 3 is provided with a double-headed worm gear 7, the surface of the transmission housing cover 1 is installed with a wedge-shaped adjustment block 8, the transmission shaft of the servo motor 2 passes through the inner cavity of the transmission housing 3 and is fixedly provided with an input worm gear 9, the surface of the output worm gear screw 5 is installed with an output external block 10, and the surface of the output worm gear screw 5 is provided with a bearing seat 11.

[0025] In actual manufacturing, a bolt 12 is provided through the surface of the transmission housing cover 1 , one end of the bolt 12 penetrates the inner wall of the transmission housing 3 and is threadedly connected thereto, and the number of the bolts 12 is several.

[0026] During actual manufacturing, the double-headed worm gear 7 includes helical teeth 13, the surface of which is welded with peripheral bevel teeth 14, the input worm gear 9 is meshed with the peripheral bevel teeth 14, the output worm gear screw 5 is meshed with the helical teeth 13, and the opposite side of the baffle 6 is rotatably connected with a metal inner shaft 15, and the double-headed worm gear 7 is fixedly sleeved on the surface of the metal inner shaft 15.

[0027] In actual manufacturing, the transmission housing 3 is made of polybutylene terephthalate material, and the bearing seat 11 is in contact with the wedge-shaped adjustment block 8 .

[0028] In actual manufacturing, a back plate 16 is welded on the surface of the transmission housing 3, and a shaft sleeve 17 is welded on the surface of the transmission housing 3. The shaft sleeve 17 is sleeved on the surface of the output worm gear screw 5.

[0029] In actual manufacturing, the output worm gear screw 5 includes a metal screw rod, and the surface of the metal screw rod is provided with injection-molded spiral teeth.

[0030] When using, step 1: select polybutylene terephthalate material as the material for the motor transmission shell. This material has good mechanical and electrical properties, can effectively reduce the weight of the motor, and at the same time ensure the stability and durability of the motor. Specifically, we chose polybutylene terephthalate material, in which the proportion of PBT is 70% and the proportion of GF is 30%. This proportion of material can not only ensure the strength of the motor, but also achieve the lightweight of the motor. Step 2: Make a double-headed gear. The double-headed worm gear 7 uses a metal inner shaft 15, an outer peripheral helical tooth 14 and a spiral tooth 1 3 is formed by one-piece injection molding. This design not only simplifies the manufacturing process of the double-headed worm gear 7 and reduces the production cost, but also improves the transmission efficiency and stability of the gear. Specifically, we selected 42CrMo material as the metal inner shaft 15, the outer peripheral helical teeth 14 and the spiral teeth 13 are formed by one-piece injection molding. The injection molding temperature is 260℃, the injection molding pressure is 60MPa, and the injection molding time is 3 minutes. Step 3: Assemble the motor transmission mechanism 4. The input worm gear 9 on the transmission shaft of the servo motor 2 drives the outer peripheral helical teeth 14 at one end of the double-headed worm gear 7 to be connected with the outer peripheral helical teeth 14 at one end of the double-headed worm gear 7. The helical teeth 13 at the other end of the double-headed worm gear 7 connected to the helical teeth 14 drive the output worm gear screw 5 connected thereto to form a U-shaped transmission structure. This structural design not only saves installation space and reduces noise, but also improves the transmission efficiency of the motor. Step 4: Make a structure of a metal wire rod and injection-molded helical teeth connected to the other end. This design not only improves the wear resistance and service life of the wire rod, but also improves the transmission efficiency of the motor. Specifically, we connect the metal wire rod with the structure of injection-molded helical teeth, and then connect this end to one end of the double-headed gear to form a complete transmission structure. Step 5: Select a servo motor 2 as the motor. This motor has the advantages of fast response speed, high control accuracy, and smooth operation, which can effectively improve the working efficiency and service life of the motor. Specifically, we selected a servo motor 2 with a rated power of 1KW and a speed of 1500rpm. Through the above steps, we successfully produced a structural design and a manufacturing method of a U-shaped motor transmission. This method not only realizes the lightweight of the motor, but also improves the transmission efficiency and stability of the motor and reduces the production cost.

[0031] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A U-shaped motor transmission structure, comprising a transmission housing cover (1) and a servo motor (2), characterized in that: A transmission housing (3) is fixedly arranged on the top of the transmission housing cover (1), a transmission mechanism (4) is arranged in the inner cavity of the transmission housing cover (1), and an output worm screw (5) is penetrated through one side of the transmission housing (3).

2. A U-shaped motor transmission structure according to claim 1, characterized in that: The transmission mechanism (4) comprises a baffle (6), the baffle (6) being welded to the top of the transmission housing cover (1), the inner cavity of the transmission housing (3) being provided with a double-headed worm gear (7), the surface of the transmission housing cover (1) being provided with a wedge-shaped adjustment block (8), the transmission shaft of the servo motor (2) passing through the inner cavity of the transmission housing (3) and being fixedly provided with an input worm gear (9), the surface of the output worm gear screw (5) being provided with an output external connection block (10), and the surface mounting sleeve of the output worm gear screw (5) being provided with a bearing seat (11).

3. A U-shaped motor transmission structure according to claim 1, characterized in that: A bolt (12) is provided through the surface of the transmission housing cover (1), one end of the bolt (12) penetrates the inner wall of the transmission housing (3) and is threadedly connected thereto, and the number of the bolts (12) is several.

4. A U-shaped motor transmission structure according to claim 2, characterized in that: The double-headed worm gear (7) comprises helical teeth (13), the surface of the helical teeth (13) is welded with peripheral bevel teeth (14), the input worm gear (9) meshes with the peripheral bevel teeth (14), the output worm gear screw (5) meshes with the helical teeth (13), the side opposite to the baffle (6) is rotatably connected to a metal inner shaft (15), and the double-headed worm gear (7) is fixedly sleeved on the surface of the metal inner shaft (15).

5. A U-shaped motor transmission structure according to claim 2, characterized in that: The transmission housing (3) is made of polybutylene terephthalate material, and the bearing seat (11) is in contact with the wedge-shaped adjustment block (8).

6. A U-shaped motor transmission structure according to claim 1, characterized in that: A back plate (16) is welded to the surface of the transmission housing (3), a shaft sleeve (17) is welded to the surface of the transmission housing (3), and the shaft sleeve (17) is sleeved on the surface of the output worm gear screw (5).

7. The U-shaped motor transmission structure according to claim 1, characterized in that: The output worm gear screw (5) comprises a metal screw rod, and the surface of the metal screw rod is provided with injection-molded spiral teeth.

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