Assembled motor driving assembly

Abstract

The utility model discloses an assembly type motor driving assembly, and particularly relates to the field of motor driving assemblies, the assembly type motor driving assembly comprises a motor body, the output end of the motor body is connected with a reduction gearbox, and the output end of the reduction gearbox is provided with a driving shaft; a first mounting assembly is further included, the first mounting assembly comprises a connecting cylinder, the connecting cylinder is positioned and mounted on the driving shaft, and a gear is positioned and mounted on the connecting cylinder; a positioning assembly is arranged in the connecting cylinder and comprises a plurality of abutting strips capable of synchronously moving close to or away from each other, and the abutting strips are used for abutting against the inner wall of the gear. And a second fixing piece is further included, and the second fixing piece is used for fixing the gear and the connecting cylinder. Through the arrangement of the positioning assembly, after the gear is positioned and installed, the abutting strip can abut against the inner ring of the gear, the gear is further fixed, and the problem that the gear shakes in the transmission process and influences the transmission precision is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor drive components, and more specifically, to an assembled motor drive component. Background Art

[0002] Motor drive components generally refer to various components and devices used to control the operation of electric motors, and are key components of motor control systems.

[0003] At present, gears are usually installed at the power output end of the motor, and precise power transmission is achieved with the outside through gear meshing. Since the motor realizes power transmission with the outside through gears, the gears connected to the power output end of the motor are prone to wear during long-term use, which leads to abnormal sounds, loud noises, asynchronous power response and other undesirable phenomena. Therefore, it is necessary to replace the easily worn gears regularly. After searching, the utility model patent with the authorization announcement number CN220173029U discloses a motor drive component, which discloses an easy-to-disassemble structure to facilitate the disassembly and replacement of gears.

[0004] However, this easily disassembled structure uses four positioning posts to be inserted on the gears to position the gears. For transmission movements that require high precision, in order to avoid the problem of gear shaking during transmission, it is necessary to use an interference fit when the positioning posts are inserted on the gears to avoid the problem of gear shaking affecting the transmission precision during gear transmission. However, if an interference fit is used, the gears need to be knocked multiple times during installation and disassembly to achieve the installation and disassembly of the gears, which is laborious and inconvenient. For this reason, the utility model proposes an assembled motor drive component, which can facilitate the disassembly and assembly of the gears and avoid affecting the transmission precision. Utility Model Content

[0005] The utility model provides an assembled motor drive assembly to solve the problem that the existing structure of easily detachable gears easily causes the gears to shake during the gear transmission process, affecting the transmission accuracy.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembled motor drive assembly, comprising: a motor body, the output end of the motor body is connected to a reduction box, and the output end of the reduction box is provided with a drive shaft;

[0007] The first installation component includes a connecting cylinder, the connecting cylinder is positioned and installed on the driving shaft, and a gear is positioned and installed on the connecting cylinder;

[0008] A positioning assembly is arranged in the connecting cylinder, and the positioning assembly includes a plurality of abutment bars which can move toward or away from each other synchronously, and the abutment bars are used to abut against the inner wall of the gear;

[0009] It also includes a second fixing member, which is used to fix the gear and the connecting cylinder.

[0010] Among them, there are three abutment bars, which abut against the inner wall of the gear. The surface of the abutment bar is coated with a high-friction coating, which is used to increase the friction when the abutment bar abuts against the inner wall of the gear. The second fixing part is a nut, and a screw is provided at the end of the connecting tube. The nut is threadedly connected to the nut, and the nut abuts against the gear.

[0011] In a preferred embodiment, the installation component 1 also includes a positioning bar, which is fixedly arranged on the driving shaft. A positioning groove is opened in the connecting tube, and the connecting tube is positioned and installed on the driving shaft through the positioning groove and the positioning bar.

[0012] During installation, the connecting tube is aligned with the driving shaft, and the positioning strip is aligned with the positioning groove, and then the connecting tube is moved, so that the connecting tube can be positioned and installed on the driving shaft.

[0013] In a preferred embodiment, the installation assembly 1 further includes a fixing member 1, and the fixing member 1 is used to position and fix the connecting cylinder and the driving shaft.

[0014] Among them, the fixing part is a screw, and the connecting tube and the driving shaft are both threadedly connected to the screw. After the connecting tube is positioned and installed on the driving shaft, the fixing between the connecting tube and the driving shaft can be completed by screwing the screw into the connecting tube and the driving shaft.

[0015] In a preferred embodiment, it also includes an installation component 2, which includes a notch, which is opened at the end of the connecting tube, and a positioning pin is fixedly provided on the notch. A pin groove is opened on the inner wall of the gear, and the gear is positioned and installed on the end of the connecting tube through the positioning pin and the pin groove.

[0016] Among them, the gear is installed by positioning the positioning pin and the pin groove, so that the gear is positioned and installed at the end of the connecting cylinder, and the gear can be positioned by the positioning pin and the pin groove, which facilitates the positioning and installation of the gear.

[0017] In a preferred embodiment, the positioning assembly also includes a threaded shaft, which is threadedly connected to the end of the connecting tube, and a knob is fixedly provided at the end of the threaded shaft. An inner cavity is opened in the connecting tube, and the threaded shaft extends into the inner cavity and is fixedly connected to a trapezoidal cone. A plurality of sliding rods are slidably arranged in the inner cavity, and rollers are provided at the ends of the plurality of sliding rods that are close to each other, and the rollers are in rolling contact with the trapezoidal cone. A plurality of grooves are opened on the notch, and a plurality of abutment strips are located in the corresponding grooves. The ends of the plurality of sliding rods extend into the corresponding grooves and are fixedly connected to the corresponding abutment strips.

[0018] Among them, the number of sliding rods, rollers and abutment strips is three, and the surface of the abutment strip is coated with a high-friction coating, which is used to increase the friction when the abutment strip abuts against the inner wall of the gear. After the gear is positioned and installed, the knob is rotated to drive the threaded shaft to rotate, and at the same time, the threaded shaft drives the trapezoidal cone to move toward the connecting tube, and then the roller can roll with the trapezoidal cone, so that the three sliding rods can drive the three abutment strips to move away from each other, so that the three abutment strips abut against the inner ring of the gear, and the gear is further fixed, so as to avoid the problem of shaking of the fixed gear affecting the transmission accuracy when the gear is transmitted.

[0019] In a preferred embodiment, the second fixing member is mounted on the threaded shaft, and the second fixing member abuts against the gear.

[0020] Among them, the second fixing part is a nut, which is threadedly connected to the threaded shaft. After the gear is installed, the nut is tightened on the threaded shaft to make the nut and the gear abut against each other, so that the gear can be limited and fixed by the abutment of the gear. When the threaded shaft is rotated, the abutment bar is driven to move and abut against the inner ring of the gear. The rotation direction of the threaded shaft is the same as the rotation direction of the nut, so that when the nut is tightened, it will not affect the abutment between the abutment bar and the inner ring of the gear.

[0021] The beneficial effects of the utility model are:

[0022] The utility model provides a positioning component so that after the gear is positioned and installed, the abutment bar can be tightly abutted against the inner ring of the gear, thereby further fixing the gear and avoiding the problem that the gear shakes during the transmission process and affects the transmission accuracy.

[0023] The utility model can conveniently realize the disassembly and assembly of the gear by arranging the installation component 1, the fixing part 1, the installation component 2 and the fixing part 2, and the disassembly and assembly efficiency is high, and it is easy to replace the gear after the gear is worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0025] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0026] Figure 3 The exploded structure diagram of a part of the structure of the utility model is shown in FIG.

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model from the side.

[0028] Figure 5 for Figure 4 Enlarged view of part A.

[0029] Figure 6 It is a schematic cross-sectional structural diagram of the connecting tube of the utility model.

[0030] The accompanying drawings are marked as follows: 1. Motor body; 2. Reducer; 21. Drive shaft; 211. Positioning strip; 3. Mounting component one; 31. Connecting cylinder; 32. Positioning groove; 33. Fixing piece one; 4. Gear; 5. Mounting component two; 51. Notch; 52. Positioning pin; 53. Pin groove; 6. Positioning component; 61. Threaded shaft; 611. Knob; 62. Inner cavity; 63. Trapezoidal cone; 64. Sliding rod; 65. Roller; 66. Groove; 67. Abutment strip; 7. Fixing piece two. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0032] Refer to the instruction manual Figures 1 to 6 , an assembled motor drive assembly, comprising: a motor body 1, an output end of the motor body 1 is connected to a reduction box 2, and an output end of the reduction box 2 is provided with a drive shaft 21;

[0033] It also includes an installation component 3, which includes a connecting cylinder 31, which is positioned and installed on the drive shaft 21, and a gear 4 is positioned and installed on the connecting cylinder 31;

[0034] A positioning assembly 6 is disposed in the connecting cylinder 31. The positioning assembly 6 includes a plurality of abutment bars 67 that can move toward or away from each other synchronously. The abutment bars 67 are used to abut against the inner wall of the gear 4.

[0035] It also includes a second fixing member 7, which is used to fix the gear 4 and the connecting cylinder 31.

[0036] It should be noted that there are three abutment bars 67, which abut against the inner wall of the gear 4. The surface of the abutment bar 67 is coated with a high-friction coating, which is used to increase the friction when the abutment bar 67 abuts against the inner wall of the gear 4. The fixing part 7 is a nut, and a screw is provided at the end of the connecting tube 31. The nut is threadedly connected to the nut, and the nut abuts against the gear 4.

[0037] The specific implementation scenario is as follows: when installing the gear 4, first position the connecting tube 31 on the drive shaft 21, then position the gear 4 on the connecting tube 31, and then drive the three abutment bars 67 to move away from each other so that the three abutment bars 67 abut against the inner wall of the gear 4, and then tighten the nut so that the nut abuts against the gear 4 to achieve a tight fixation of the gear 4. By using the three abutment bars 67 to abut against the inner wall of the gear 4 and under the action of the high friction coating on the three abutment bars 67, it is possible to avoid shaking of the fixed gear 4 when the transmission is transmitted through the gear 4, thereby affecting the transmission accuracy.

[0038] Furthermore, if Figure 2 and Figure 3 As shown, the installation component 3 also includes a positioning bar 211, which is fixedly arranged on the driving shaft 21. A positioning groove 32 is opened in the connecting tube 31, and the connecting tube 31 is positioned and installed on the driving shaft 21 through the positioning groove 32 and the positioning bar 211.

[0039] It should be noted that, during installation, the connecting tube 31 is aligned with the driving shaft 21 , and the positioning strip 211 is aligned with the positioning groove 32 , and then the connecting tube 31 is moved, so that the connecting tube 31 can be positioned and installed on the driving shaft 21 .

[0040] Furthermore, if Figure 4 As shown, the installation assembly 3 also includes a fixing member 33, and the fixing member 33 is used to position and fix the connecting cylinder 31 and the driving shaft 21.

[0041] It should be noted that the fixing member 33 is a screw, and the connecting tube 31 and the driving shaft 21 are both threadedly connected to the screw. After the connecting tube 31 is positioned and installed on the driving shaft 21, the fixing between the connecting tube 31 and the driving shaft 21 can be completed by screwing the screw into the connecting tube 31 and the driving shaft 21.

[0042] Furthermore, if Figure 3 As shown, it also includes an installation component 2 5, which includes a notch 51. The notch 51 is opened at the end of the connecting tube 31. A positioning pin 52 is fixedly provided on the notch 51. A pin groove 53 is opened on the inner wall of the gear 4. The gear 4 is positioned and installed on the end of the connecting tube 31 through the positioning pin 52 and the pin groove 53.

[0043] It should be noted that the gear 4 is installed by positioning the positioning pin 52 and the pin groove 53 so that the gear 4 is positioned and installed at the end of the connecting tube 31 , and the gear 4 can be positioned by the positioning pin 52 and the pin groove 53 .

[0044] Furthermore, if Figure 5 and Figure 6As shown, the positioning assembly 6 also includes a threaded shaft 61, which is threadedly connected to the end of the connecting tube 31, and a knob 611 is fixedly provided at the end of the threaded shaft 61. An inner cavity 62 is opened in the connecting tube 31, and the threaded shaft 61 extends into the inner cavity 62 and is fixedly connected to a trapezoidal cone 63. A plurality of sliding rods 64 are slidably arranged in the inner cavity 62, and rollers 65 are provided at the ends close to each other. The rollers 65 are in rolling contact with the trapezoidal cone 63, and a plurality of grooves 66 are opened on the notch 51. A plurality of abutment strips 67 are located in the corresponding grooves 66. The ends of the plurality of sliding rods 64 extend into the corresponding grooves 66 and are fixedly connected to the corresponding abutment strips 67.

[0045] It should be noted that there are three slide bars 64, rollers 65 and abutment bars 67. The surface of the abutment bars 67 is coated with a high-friction coating to increase the friction when the abutment bars 67 abut against the inner wall of the gear 4. After the gear 4 is positioned and installed, the knob 611 is rotated to drive the threaded shaft 61 to rotate, and at the same time, the threaded shaft 61 drives the trapezoidal table 63 to move toward the connecting tube 31, and then the roller 65 can roll with the trapezoidal table 63, so that the three slide bars 64 can drive the three abutment bars 67 to move away from each other, so that the three abutment bars 67 abut against the inner ring of the gear 4, and the gear 4 is further fixed, so that when the gear 4 is transmitted, the problem of shaking of the fixed gear 4 affecting the transmission accuracy can be avoided.

[0046] Furthermore, if Figure 2 As shown, the second fixing member 7 is installed on the threaded shaft 61 , and the second fixing member 7 is in contact with the gear 4 .

[0047] It should be noted that the second fixing member 7 is a nut, which is threadedly connected to the threaded shaft 61. After the gear 4 is installed, the nut is tightened on the threaded shaft 61 to make the nut and the gear 4 press tightly against each other, so that the gear 4 can be limited and fixed by pressing against the gear 4, and the side of the gear 4 can be limited and pressed, thereby achieving the installation and fixation of the gear 4.

[0048] It should also be noted that when the threaded shaft 61 is rotated, driving the abutment bar 67 to move and abut against the inner ring of the gear 4, the rotation direction of the threaded shaft 61 is the same as the rotation direction of the nut, so that when the nut is tightened, it will not affect the abutment between the abutment bar 67 and the inner ring of the gear 4.

[0049] The specific implementation scenario is as follows: when installing the gear 4, first, the connecting cylinder 31 is positioned and installed on the drive shaft 21, and then the gear 4 is positioned and installed on the connecting cylinder 31. The fixing piece 33 is screwed into the connecting cylinder 31 and the drive shaft 21 to complete the fixation between the connecting cylinder 31 and the drive shaft 21. Then, the positioning pin 52 and the pin groove 53 are used to position and install the gear 4. Then, the knob 611 is rotated to make the knob 611 drive the threaded shaft 61 to rotate, and at the same time, the threaded shaft 61 drives the trapezoidal cone 63 to move in the direction close to the connecting cylinder 31, and then the roller 65 and the ladder cone 63 can be used to rotate the gear 4. The rolling contact of the truncated cone 63 allows the three abutment bars 67 to move away from each other through the three sliding rods 64, so that the three abutment bars 67 abut against the inner ring of the gear 4 to further fix the gear 4. Finally, by tightening the fixing member 2 7 on the threaded shaft 61, the fixing member 2 7 is pressed against the gear 4, so that the gear 4 can be limited and fixed by pressing against the gear 4, and the gear 4 can be fixed. When the gear 4 needs to be disassembled, the fixing member 2 7 is unscrewed, and then the threaded shaft 61 is screwed to separate the abutment bar 67 from the gear 4, and then the gear 4 can be directly pulled off.

[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An assembled motor drive assembly, It is characterized in that include: A motor body (1), the output end of the motor body (1) is connected to a reduction box (2), and the output end of the reduction box (2) is provided with a drive shaft (21); It also includes a mounting assembly (3), the mounting assembly (3) including a connecting cylinder (31), the connecting cylinder (31) is positioned and mounted on the driving shaft (21), and a gear (4) is positioned and mounted on the connecting cylinder (31); A positioning assembly (6) is arranged in the connecting cylinder (31), and the positioning assembly (6) includes a plurality of abutment bars (67) that can move toward or away from each other synchronously, and the abutment bars (67) are used to abut against the inner wall of the gear (4); It also includes a second fixing member (7), which is used to fix the gear (4) and the connecting cylinder (31).

2. An assembled motor drive assembly according to claim 1, Features: The installation component 1 (3) further comprises a positioning bar (211), the positioning bar (211) being fixedly arranged on the driving shaft (21), a positioning groove (32) being provided in the connecting tube (31), and the connecting tube (31) being positioned and installed on the driving shaft (21) via the positioning groove (32) and the positioning bar (211).

3. An assembled motor drive assembly according to claim 2, Features: The installation assembly 1 (3) also includes a fixing member 1 (33), and the fixing member 1 (33) is used to position and fix the connecting cylinder (31) and the driving shaft (21).

4. The assembled motor drive assembly according to claim 1, Features: The second mounting assembly (5) includes a notch (51) which is formed at the end of the connecting tube (31). A positioning pin (52) is fixedly arranged on the notch (51). A pin groove (53) is formed on the inner wall of the gear (4). The gear (4) is positioned and mounted on the end of the connecting tube (31) through the positioning pin (52) and the pin groove (53).

5. An assembled motor drive assembly according to claim 4, Features: The positioning assembly (6) further comprises a threaded shaft (61), the threaded shaft (61) being threadedly connected to the end of the connecting tube (31), a knob (611) being fixedly arranged at the end of the threaded shaft (61), an inner cavity (62) being provided in the connecting tube (31), the threaded shaft (61) extending into the inner cavity (62) and being fixedly connected to a trapezoidal truncated cone (63), a plurality of sliding rods (64) being slidably arranged in the inner cavity (62), a roller (65) being arranged at the adjacent ends of the plurality of sliding rods (64), the roller (65) being in rolling contact with the trapezoidal truncated cone (63), a plurality of grooves (66) being provided on the notch (51), a plurality of abutment strips (67) being located in the corresponding grooves (66), the ends of the plurality of sliding rods (64) extending into the corresponding grooves (66) and being fixedly connected to the corresponding abutment strips (67).

6. The assembled motor drive assembly according to claim 5, Features: The second fixing member (7) is mounted on the threaded shaft (61), and the second fixing member (7) is in contact with the gear (4).

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