Speed reducing motor and automobile tire dismounting and mounting equipment with same

Abstract

The utility model discloses a gear motor and automobile tire dismounting and mounting equipment with the same. The gear motor comprises a box body, a box cover covering the output end of the box body, a transmission assembly rotatably arranged in the box body, and a driving unit driving the transmission assembly to rotate. The transmission assembly comprises a transmission shaft rotationally arranged in the box body, a first transmission gear arranged on the transmission shaft and a reduction gear set. The transmission shaft comprises a first transmission section inserted in the box body and a second transmission section eccentrically arranged relative to the first transmission section, a reduction gear set is arranged on the second transmission section, a reduction ring is fixedly arranged in the box body, and the reduction gear set is meshed with the reduction ring; a transmission ring is arranged on the reduction gear set, an output shaft concentric with the first transmission section is clamped to the transmission ring, and the output shaft extends out of the box cover and is connected with the workbench.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a reduction motor and automobile tire disassembly and assembly equipment having the same. Background Art

[0002] The main function of the tire changer is to unload and install tires. The tire changer has the characteristics of high work efficiency and strong adaptability. The tire will not be damaged during the removal process, so it can be widely used in the removal of large automobile tires and wheels in metallurgy, chemical industry, coal, water conservancy and other industries. The tire changer is not only suitable for the automotive industry, but also can be used in other fields. It is a very practical equipment that can greatly improve work efficiency and bring convenience to our work.

[0003] The working principle of the existing tire changing equipment is: the motor drives the reduction motor through the belt, and the reduction motor drives the workbench through the main shaft to meet the requirements of tire disassembly and installation. Among them, the structure of the reduction motor of the tire changing machine is generally reduced by a worm gear, and the power consumed by the worm and the worm during transmission is about 20%, plus the power consumed by the belt drive is about 10%. In this way, when the power of the motor is transmitted to the workbench, it is only about 70% of the actual power. The power consumed is large, and the volume of the entire reduction motor is large. During installation, the reduction motor needs to be connected to the equipment box, and then the motor and the reduction motor are connected with a motor bracket, and then the belt is installed to connect the reduction motor and the motor, which makes the equipment assembly difficult. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes a reduction motor.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A reduction motor comprises a box body, a box cover arranged at an output end of the box body, a transmission assembly arranged in the box body, and a driving unit driving the transmission assembly to rotate;

[0007] The transmission assembly includes a transmission shaft rotated in the box body, a first transmission gear arranged on the transmission shaft, and a reduction gear set;

[0008] The transmission shaft comprises a first transmission section inserted in the housing, a second transmission section eccentrically arranged relative to the first transmission section, a reduction gear set is arranged on the second transmission section, a reduction ring is fixedly arranged in the housing, and the reduction gear set is meshed with the reduction ring;

[0009] The reduction gear set is provided with a transmission ring, and the transmission ring is clamped with an output shaft which is arranged concentrically with the first transmission section. The output shaft extends out of the box cover and is connected to the workbench.

[0010] Preferably, a first clamping groove is formed on the output end of the reduction gear set, and a first clamping protrusion is formed on the bottom of the transmission ring, and the first clamping protrusion is placed in the first clamping groove. Through the above improvement, the first clamping protrusion of the transmission ring is inserted into the first clamping groove, so that the transmission ring can rotate with the end of the reduction gear set, and drive the output shaft to rotate after deceleration, so that the output shaft has a greater torque.

[0011] Preferably, the first clamping groove passes through the center of the reduction gear set, the first clamping protrusion can slide radially along the first clamping groove, and the transmission ring is concentrically arranged with the first transmission section. Through the above improvements, during the installation process, the first clamping protrusion of the transmission ring can be used to slide along the first clamping groove, which makes it easier to adjust the transmission ring and the first transmission section to be concentrically arranged, improves the concentricity of the output shaft and the first transmission section, and improves the stability of the entire reduction motor during operation.

[0012] Preferably, a second engaging protrusion is formed at the top of the transmission ring, and a second engaging groove engaged with the second engaging protrusion is formed at the bottom of the output shaft. Through the above improvements, during the installation process, the second engaging protrusion is inserted into the bottom of the output shaft, so that the transmission ring can drive the output shaft to rotate. The transmission ring is decelerated by the reduction gear set and drives the output shaft to rotate, so that the output shaft has a larger torque and drives the workbench to rotate.

[0013] Preferably, the first transmission gear is arranged on the first transmission section, the first transmission gear meshes with the output end of the driving unit and constitutes a first reduction part, and the reduction gear set meshes with the reduction ring and constitutes a second reduction part. Through the above improvement, the output shaft undergoes two-stage reduction, so that the output shaft has a larger torque and drives the workbench to rotate.

[0014] Preferably, the second transmission section includes a first eccentric portion eccentrically arranged relative to the first transmission section, and a second eccentric portion arranged in an eccentric direction away from the first eccentric portion, the reduction gear set includes a first reduction gear arranged on the first eccentric portion, and a second reduction gear arranged on the second eccentric portion, the first reduction gear and the second reduction gear are respectively meshed with the reduction ring, and the transmission ring is arranged on the second reduction gear. Through the above improvements, since the first eccentric portion and the second eccentric portion are eccentrically arranged relative to the first transmission section, as the transmission shaft rotates, the first reduction gear and the second reduction wheel will mesh with the reduction ring and rotate, thereby achieving a deceleration effect, and the first eccentric portion and the second eccentric portion are 180° in phase, so that the center of gravity is located at the center of the first transmission section, offsetting the centrifugal force of the first reduction gear and the second reduction gear during eccentric operation, and can overcome the vibration of the entire drive shaft caused by the eccentric setting, so that the operation of the entire reduction motor is more stable.

[0015] Preferably, the transmission shaft further includes a third transmission section arranged concentrically with the first transmission section, a rotation groove for the third transmission section to be placed is formed at the bottom of the output shaft, and the third transmission section is arranged concentrically with the output shaft. Through the above improvement, since the first transmission section and the third transmission section are arranged concentrically, the third transmission section is placed at the bottom of the output shaft, which further improves the concentricity of the output shaft and the first transmission section, thereby improving the stability of the output shaft during rotation.

[0016] Preferably, the drive unit is a brushless motor. Through the above improvements, the brushless motor controls the torque, and once the torque exceeds the setting, the motor stops, and can be started immediately after stopping, with high working efficiency and can overcome inertia.

[0017] Preferably, a controller for controlling the rotation speed and rotation direction of the drive unit is provided in the box. Through the above improvements, the rotation speed of the drive unit can be controlled by the motor control structure.

[0018] A tire removing machine structure comprises a machine platform, a column arranged on the machine platform, a tire removing head connected to the column, and a workbench arranged just below the tire removing head and located on the machine platform, wherein a reduction motor for driving the workbench to rotate is arranged in the machine platform.

[0019] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0020] 1. The first stage of deceleration is achieved by arranging a first transmission gear at the input end of the transmission shaft and meshing it with the output section of the drive unit, and a reduction gear set is arranged on the eccentric section of the transmission shaft, and the reduction gear set is meshed with a reduction ring fixed in the housing to achieve secondary deceleration, so that the entire reduction box is small in size, light in weight, and has a high number of transmission stages and a high total deceleration efficiency.

[0021] 2. By arranging a transmission ring in the reduction gear set, the transmission ring is engaged with the output shaft, and the transmission ring can slide at the end of the reduction gear set, which makes it easier to adjust the concentricity of the output shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the tire changing machine of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the reduction motor of the utility model;

[0024] Figure 3 It is a cross-sectional view of the reduction motor of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the transmission assembly of the utility model;

[0026] Figure 5It is an exploded view of the transmission assembly of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the reduction gear set of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the transmission ring of the utility model;

[0029] Figure 8 It is a structural schematic diagram of the transmission shaft of the utility model;

[0030] Fig. 9 It is a structural schematic diagram of the output shaft of the utility model;

[0031] In the figure: 1, machine; 2, column; 3, tire removal head; 4, workbench; 5, reduction motor; 101, box; 102, box cover; 103, transmission assembly; 104, drive unit; 201, transmission shaft; 202, first transmission gear; 203, reduction gear set; 301, first transmission section; 302, second transmission section; 303, third transmission section; 304, first reduction unit; 305, reduction ring; 306, second reduction unit; 401, transmission Moving ring; 402, output shaft; 403, rotating groove; 501, first eccentric part; 502, second eccentric part; 503, first reduction gear; 504, second reduction gear; 601, first clamping groove; 602, first clamping convex part; 603, second clamping groove; 604, second clamping convex part; 605, mounting groove; 701, first fixing pin; 702, fixing hole; 703, second fixing pin; 704, positioning hole; 705, motor control structure; DETAILED DESCRIPTION

[0032] 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.

[0033] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0034] like Figure 1-9As shown, a vehicle tire disassembly and assembly equipment comprises a machine platform 1, a column 2 arranged on the machine platform 1, a tire removal head 3 connected to the column 2, and a workbench 4 arranged just below the tire removal head 3 and located on the machine platform 1. A reduction motor 5 for driving the workbench 4 to rotate is provided in the machine platform 1. The workbench 4 consists of two cylinders and claws. By placing a tire on the workbench 4 and driving the workbench 4 to rotate by the reduction motor 5, the tire removal head can remove the outer tire of the tire.

[0035] Specifically, the reduction motor 5 includes a box body 101 , a box cover 102 covering the output end of the box body 101 , a transmission assembly 103 rotated in the box body 101 , and a driving unit 104 driving the transmission assembly 103 to rotate.

[0036] The transmission assembly 103 includes a transmission shaft 201 rotated in the housing 101 , a first transmission gear 202 arranged on the transmission shaft 201 , and a reduction gear set 203 .

[0037] The transmission shaft includes a first transmission section 301 inserted on the housing 101, a second transmission section 302 eccentrically arranged relative to the first transmission section 301, a first transmission gear 202 arranged on the first transmission section 301, and the first transmission gear 202 meshes with the output end of the driving unit 104. Since the number of teeth at the output end of the driving unit 104 is smaller than that of the first transmission gear 202, a first speed reduction unit 304 can be formed to perform the first speed reduction.

[0038] The reduction gear set 203 is arranged on the second transmission section 302, and a reduction ring 305 is fixedly arranged in the housing 101. The reduction gear set 203 meshes with the reduction ring 305, and the number of teeth of the reduction gear set 203 is less than that of the reduction ring 305, thereby forming a second reduction part 306 for the second reduction;

[0039] Since the reduction gear set 203 is provided with a transmission ring 401, and the output shaft 402 is clamped on the transmission ring 401, the output shaft 402 extends out of the box cover 102 and is connected to the workbench 4. The transmission ring 401 performs secondary deceleration under the action of the reduction gear set 203, thereby realizing double deceleration of the output shaft 402.

[0040] By reducing speed through gears of the entire transmission assembly 103, the power consumed by the motor can be reduced, the service life of the motor can be increased, and the first transmission gear 202 is utilized and meshed with the output end of the drive unit 104 to achieve the first stage of reduction, and a reduction gear set 203 is arranged on the eccentric section of the transmission shaft 201, and the reduction gear set 203 is meshed with a reduction ring 305 fixed in the housing 101 to achieve secondary reduction, so that the entire reduction housing 101 is small in size, light in weight, and has a large number of transmission stages, and the overall reduction efficiency is high.

[0041] like Figures 3 to 9As shown, a further explanation of the implementation method of the transmission component 103 in this embodiment is provided, wherein the second transmission section 302 includes a first eccentric portion 501 eccentrically arranged relative to the first transmission section 301, and a second eccentric portion 502 arranged eccentrically away from the first eccentric portion 501, and the first eccentric portion 501 and the second eccentric portion 502 are 180° in phase, so that the center of gravity is located at the center of the first transmission section 301, offsetting the centrifugal force of the first reduction gear 503 and the second reduction gear 504 during eccentric operation, and can overcome the vibration of the entire drive shaft caused by the eccentric setting, so that the operation of the entire reduction motor 5 is more stable.

[0042] Furthermore, a first snap-in groove 601 is formed on the second reduction gear 504, and a first snap-in protrusion 602 is formed at the bottom of the transmission ring 401. The first snap-in protrusion 602 of the transmission ring 401 can be inserted into the first snap-in groove 601, so that the transmission ring 401 can rotate with the second reduction gear 504 and drive the output shaft 402 to rotate, so that the output shaft 402 has a two-stage reduction effect.

[0043] In addition, a second snap-in protrusion 604 is formed on the top of the transmission ring 401, and a second snap-in groove 603 snap-in with the second snap-in protrusion 604 is formed on the bottom of the output shaft 402. During the installation process, the second snap-in protrusion 604 is inserted into the bottom of the output shaft 402, so that the transmission ring 401 can drive the output shaft 402 to rotate. The transmission ring 401 undergoes secondary deceleration through the second reduction gear 504, and drives the output shaft 402 to rotate, so that the output shaft 402 has a larger torque and drives the workbench 4 to rotate.

[0044] like Figure 5 As shown, preferably, the first snap-fit ​​protrusion 602 can slide radially along the first snap-fit ​​groove 601. During the installation process, the first snap-fit ​​protrusion 602 of the transmission ring 401 can be used to slide along the first snap-fit ​​groove 601, which makes it easier to adjust the transmission ring 401 and the first transmission section 301 to be concentric, thereby improving the concentricity of the output shaft 402 and the first transmission section 301 and improving the stability of the entire reduction motor 5 during operation.

[0045] like Figure 3 As shown, further, the transmission shaft 201 also includes a third transmission section 303 arranged concentrically with the first transmission section 301, and a rotation groove 403 for the third transmission section 303 to be placed is formed at the bottom of the output shaft 402. During the installation process, the third transmission section 303 is placed at the bottom of the output shaft 402, which ensures the concentricity of the output shaft 402 and the first transmission section 301, further improves the stability of the output shaft 402 during rotation, and makes the workbench 4 more stable when rotating.

[0046] like Figure 3 , Figure 5 As shown, Figure 5 As shown, as a further explanation of the implementation method of the reduction ring 305 in this embodiment, the reduction ring 305 is fixed in the housing 101, and the inner ring of the reduction ring 305 is formed with teeth, and the number of teeth of the reduction ring 305 is greater than that of the second reduction gear 504, thereby realizing two-stage reduction.

[0047] The housing 101 is provided with a plurality of first fixing pins 701 , and the reduction ring 305 is formed with fixing holes 702 for the first fixing pins 701 to be inserted into. The reduction ring 305 is fixed in the housing 101 by the first fixing pins 701 cooperating with the fixing holes 702 on the reduction ring 305 .

[0048] like Figure 3 As shown, preferably, a plurality of second fixing pins 703 are provided on the box body 101, and a positioning hole 704 for the second fixing pin 703 to be inserted is formed on the box cover 102. The second fixing pin 703 can be matched with the positioning hole 704 on the box cover 102, so that the box cover 102 can be quickly fixed and is more convenient to assemble.

[0049] Preferably, the drive unit 104 in this embodiment is a brushless motor. Ordinary motor overload protection is achieved through motor temperature. Once overload occurs, the motor temperature needs to drop to the set temperature before it can be restarted, which takes at least 5 minutes. The brushless motor controls the torque. Once the torque exceeds the set temperature, the motor stops and can be started immediately after stopping. It has high working efficiency. Ordinary motors need to be equipped with dampers on the motors to prevent continued rotation or reverse rotation due to the inertia of the working disk and tire when the motor stops. The damper will consume motor power during operation, reducing the output efficiency of the reducer by 2%. After the brushless motor is powered off, the magnetic force of the permanent magnet poles on its rotor can overcome the inertial force. The use of brushless motors can make the entire tire changing equipment more intelligent.

[0050] like Figure 1 As shown, preferably, a motor control structure 705 for controlling the drive unit 104 is provided in the housing 101 , and the rotation speed and rotation direction of the drive unit 104 can be controlled by the motor control structure 705 to meet different usage scenarios.

[0051] Specifically, the motor control structure 705 can be connected to a pedal, and the pedal can be stepped on to make the workbench 4 rotate forward or reverse, and to increase or decrease the speed. When the pedal is in a free state, the workbench 4 stops; when the pedal is stepped on downward, the workbench 4 rotates forward, and the speed increases the further downward the pedal is; when the pedal is stepped on upward, the workbench 4 reverses.

[0052] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A reduction motor, characterized in that: It comprises a box body (101), a box cover (102) arranged at the output end of the box body (101), a transmission assembly (103) arranged inside the box body (101), and a driving unit (104) driving the transmission assembly (103) to rotate; The transmission assembly (103) comprises a transmission shaft (201) rotated in the housing (101), a first transmission gear (202) arranged on the transmission shaft (201), and a reduction gear set (203); The transmission shaft (201) comprises a first transmission section (301) inserted into the housing (101), and a second transmission section (302) eccentrically arranged relative to the first transmission section (301); a reduction gear set (203) is arranged on the second transmission section (302); a reduction ring (305) is fixedly arranged in the housing (101); and the reduction gear set (203) meshes with the reduction ring (305); The reduction gear set (203) is provided with a transmission ring (401), and the transmission ring (401) is clamped with an output shaft (402) arranged concentrically with the first transmission section (301), and the output shaft (402) extends out of the box cover (102) and is connected to the workbench (4).

2. A reduction motor according to claim 1, characterized in that: A first clamping groove (601) is formed on the output end of the reduction gear set (203), and a first clamping protrusion (602) is formed on the bottom of the transmission ring (401), and the first clamping protrusion (602) is placed in the first clamping groove (601).

3. A reduction motor according to claim 2, characterized in that: The first clamping groove (601) passes through the center of the reduction gear set (203), the first clamping protrusion (602) can slide radially along the first clamping groove (601), and the transmission ring (401) is concentrically arranged with the first transmission section (301).

4. A reduction motor according to claim 1, characterized in that: A second engaging protrusion (604) is formed at the top of the transmission ring (401), and a second engaging groove (603) engaged with the second engaging protrusion (604) is formed at the bottom of the output shaft (402).

5. A reduction motor according to claim 1, characterized in that: The first transmission gear (202) is arranged on the first transmission section (301), the first transmission gear (202) is meshed with the output end of the driving unit (104) to form a first reduction part (304), and the reduction gear set (203) is meshed with the reduction ring (305) to form a second reduction part (306).

6. A reduction motor according to claim 1, characterized in that: The second transmission section (302) comprises a first eccentric portion (501) eccentrically arranged relative to the first transmission section (301), and a second eccentric portion (502) arranged in an eccentric direction away from the first eccentric portion (501); the reduction gear set (203) comprises a first reduction gear (503) arranged on the first eccentric portion (501), and a second reduction gear (504) arranged on the second eccentric portion (502); the first reduction gear (503) and the second reduction gear (504) are respectively meshed with a reduction ring (305), and the transmission ring (401) is arranged on the second reduction gear (504).

7. A reduction motor according to claim 1, characterized in that: The transmission shaft (201) further comprises a third transmission section (303) arranged concentrically with the first transmission section (301); a rotation groove (403) for the third transmission section (303) to be placed is formed at the bottom of the output shaft (402); and the third transmission section (303) is arranged concentrically with the output shaft (402).

8. A reduction motor according to claim 1, characterized in that: The driving unit (104) is a brushless motor.

9. The reduction motor according to claim 1, characterized in that: A motor control structure (705) for controlling the rotation speed and rotation direction of the drive unit (104) is provided in the box (101).

10. A vehicle tire disassembly and assembly device, comprising a reduction motor as claimed in any one of claims 1 to 9, characterized in that: The invention comprises a machine platform (1), a column (2) arranged on the machine platform (1), a tire removal head (3) connected to the column (2), and a workbench (4) arranged directly below the tire removal head (3) and located on the machine platform (1); a reduction motor (5) for driving the workbench (4) to rotate is provided in the machine platform (1).

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