Speed ​​reducer

Abstract

The present application proposes a reduction gear, comprising: a motor, provided with an output shaft, the length direction of the motor is parallel to the length direction of the reduction gear; a worm, sleeved on the output shaft; a gearbox, connected to the motor; the length direction of the gearbox is perpendicular to the length direction of the motor; a first connecting shaft, provided on the gearbox; a worm wheel, sleeved on the first connecting shaft, the worm wheel meshing with the worm; a transmission gear, sleeved on the first connecting shaft; a plurality of reduction transmission mechanisms, arranged in sequence according to the transmission path, the reduction transmission mechanism comprises a second connecting shaft, an input gear and an output gear, in two adjacent reduction transmission mechanisms on the transmission path, the output gear of the one located in front of the transmission path meshes with the input gear of the one located in the rear of the transmission path; a torque output shaft, connected to the gearbox, the output gear of the reduction transmission mechanism located at the end of the transmission path is transmission-connected with the torque output shaft. Its overall structure is more compact, which is more conducive to installing the reduction gear on a specific application device.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical transmission devices, and in particular to a reduction device. Background Art

[0002] The reduction gear is a commonly used mechanical transmission device, which is mainly used to reduce the speed of a high-speed rotating motor or engine to the required output speed and increase the output torque at the same time.

[0003] At present, due to the unreasonable structural layout of the motor or engine and the gear box, the reduction gear on the market has an overall length that is too long and has poor compactness, which is not conducive to the installation of the reduction gear. Utility Model Content

[0004] The embodiment of the present application provides a deceleration device to solve the problems existing in the related technology. The technical solution is as follows:

[0005] The embodiment of the present application provides a deceleration device, comprising:

[0006] A motor, wherein the motor is provided with an output shaft, and the length direction of the motor is parallel to the length direction of the reduction gear;

[0007] A worm, the worm being sleeved on the output shaft so that the worm rotates along with the output shaft;

[0008] A gear box, the gear box is connected to the motor; the length direction of the gear box is perpendicular to the length direction of the motor;

[0009] a first connecting shaft, the first connecting shaft being arranged on the gear box;

[0010] A worm wheel, the worm wheel is sleeved on the first connecting shaft, and the worm wheel is meshed with the worm;

[0011] A transmission gear, which is sleeved on the first connecting shaft and rotates with the worm gear;

[0012] A plurality of reduction transmission mechanisms, wherein the plurality of reduction transmission mechanisms are sequentially arranged according to a transmission path, wherein the transmission path extends along the length direction of the gear box, wherein the reduction transmission mechanism comprises a second connecting shaft, an input gear and an output gear, wherein the input gear is sleeved on the second connecting shaft, and the output gear is sleeved on the second connecting shaft and rotates following the input gear; among the plurality of reduction transmission mechanisms, the input gear of the reduction transmission mechanism located at the starting position of the transmission path meshes with the transmission gear; among two adjacent reduction transmission mechanisms on the transmission path, the output gear of the one located at the front of the transmission path meshes with the input gear of the one located at the rear of the transmission path;

[0013] A torque output shaft is connected to the gear box. Among the plurality of reduction transmission mechanisms, the output gear of the reduction transmission mechanism located at the end of the transmission path is in transmission connection with the torque output shaft.

[0014] In one embodiment, the motor and the gear box form an L-shaped structure.

[0015] In one embodiment, the ratio of the length dimension of the gear box to the width dimension of the gear box is 18:12.

[0016] In one embodiment, four reduction transmission mechanisms are provided, the torque output shaft is provided with terminal output teeth, and the output gear of the reduction transmission mechanism located at the end of the transmission path among the multiple reduction transmission mechanisms is meshed with the terminal output teeth.

[0017] In one embodiment, the gearbox includes a first clamping plate, an adapter plate, and a second clamping plate;

[0018] The first clamping plate and the second clamping plate are arranged spaced apart from each other and opposite to each other, two ends of the first connecting shaft are respectively connected to the first clamping plate and the second clamping plate, and two ends of the second connecting shaft are respectively connected to the first clamping plate and the second clamping plate;

[0019] The opposite two sides of the adapter plate are respectively connected to the first clamping plate and the second clamping plate, and the adapter plate is connected to the motor.

[0020] In one embodiment, one of the first clamping plate and the adapter plate is provided with a first embedding groove, and the other is provided with a first embedding block, and the first embedding block is embedded in the first embedding groove.

[0021] In one embodiment, one of the second clamping plate and the adapter plate is provided with a second embedding groove, and the other is provided with a second embedding block, and the second embedding block is embedded in the second embedding groove.

[0022] In one embodiment, the first clamping plate is connected to the adapter plate by a first screw, and the second clamping plate is connected to the second clamping plate by a second screw.

[0023] In one embodiment, the first splint and the second splint are connected via a plurality of inserting tubes, the axial direction of the inserting tubes is parallel to the axial direction of the first screw, and the axial direction of the inserting tubes is parallel to the axial direction of the second screw.

[0024] In one embodiment, the worm is a triple-start worm.

[0025] The advantages or beneficial effects of the above technical solution include at least:

[0026] The speed reducer of the utility model is based on the fact that the length direction of the motor is parallel to the length direction of the speed reducer and the length direction of the gear box is perpendicular to the length direction of the motor, that is, the length direction of the gear box is set at 90 degrees to the length direction of the motor, so that the length of the speed reducer is relatively short, the overall structure of the speed reducer is more compact, which is conducive to the reasonable stacking of other components on the specific application equipment, and thus makes the size ratio of each direction of the specific application equipment more reasonable;

[0027] Since the multiple reduction transmission mechanisms are arranged in sequence according to the transmission path, and the transmission path extends along the length direction of the gear box, the reduction transmission mechanism fully utilizes the space in the length direction of the gear box, improves the space utilization rate in the length direction of the gear box, and avoids occupying the space in the width direction of the gear box and increasing the overall length of the reduction device;

[0028] Since the overall structure of the reduction gear is more compact, it is more convenient to install the reduction gear on specific application equipment, and is also convenient for reasonable stacking of other components on the specific application equipment, so that the dimensional ratios of the specific application equipment in all directions are more reasonable.

[0029] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the deceleration device of the utility model in a first viewing angle;

[0032] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure after the first splint is hidden;

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the deceleration device of the utility model at a second viewing angle.

[0034] Reference numerals

[0035] 1. Motor; 2. Worm; 3. Gearbox; 31. First clamping plate; 311. First embedding block; 312. First plug hole; 313. First screw hole; 32. Adapter plate; 321. First embedding groove; 322. Second embedding groove; 33. Second clamping plate; 331. Second embedding block; 332. Second plug hole; 333. Second screw hole; 4. First connecting shaft; 5. Worm gear; 6. Transmission gear; 7. Speed ​​reduction transmission mechanism; 71. Second connecting shaft; 72. Input gear; 73. Output gear; 8. Torque transmission shaft; 9. Terminal output tooth; 10. Insert pipe. DETAILED DESCRIPTION

[0036] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0037] See also Figure 1-Figure 3 , shows a deceleration device of a preferred embodiment of the utility model, comprising:

[0038] The motor 1 is provided with an output shaft, that is, the power of the motor 1 is output outwardly through the output shaft, and the length direction of the motor 1 is parallel to the length direction of the reduction device;

[0039] The worm 2 is sleeved on the output shaft so that the worm 2 rotates along with the output shaft. It should be noted that the axis of the worm 2 is colinear with the axis of the output shaft.

[0040] The gearbox 3 is connected to the motor 1. For example, the gearbox 3 can be fixed to the housing of the motor 1, or the gearbox 3 can be fixed to other stationary parts of the motor 1, so that the two can be fixed together; the length direction of the gearbox 3 is perpendicular to the length direction of the motor 1; that is, the length direction of the gearbox 3 is set at 90° to the length direction of the motor 1, so that the length of the reduction device is relatively short, which is conducive to the reasonable stacking of other components, and makes the ratio of the dimensions of each direction of the specific application equipment more reasonable;

[0041] A first connecting shaft 4, which is disposed on the gear box 3 and is perpendicular to the output shaft. The first connecting shaft 4 can be fixed on the gear box 3 or can be pivotally connected to the gear box 3;

[0042] The worm wheel 5 is sleeved on the first connecting shaft 4, and the worm wheel 5 is meshed with the worm 2; when the worm wheel 5 is movably sleeved on the first connecting shaft 4, the first connecting shaft 4 is fixed on the gear box 3; when the worm wheel 5 is fixedly sleeved on the first connecting shaft 4, the first connecting shaft 4 is pivotally connected to the gear box 3; that is, as long as the requirement that the worm wheel 5 can rotate relative to the gear box 3 is met;

[0043] Transmission gear 6, the transmission gear 6 is sleeved on the first connecting shaft 4 and rotates with the worm gear 5; the transmission gear 6 can be fixed to the worm gear 5, and the first connecting shaft 4 can be fixed to the gear box 3; or the worm gear 5, the first connecting shaft 4 and the transmission gear 6 can be fixedly connected in sequence, and the first connecting shaft 4 is pivotally connected to the gear box 3.

[0044] A plurality of reduction transmission mechanisms 7 are arranged in sequence according to a transmission path, the transmission path extends along the length direction of the gear box 3, the reduction transmission mechanism 7 comprises a second connecting shaft 71, an input gear 72 and an output gear 73, the second connecting shaft 71 is perpendicular to the output shaft, the input gear 72 is sleeved on the second connecting shaft 71, and the output gear 73 is sleeved on the second connecting shaft 71 and rotates with the input gear 72; among the plurality of reduction transmission mechanisms 7, the input gear 72 of the reduction transmission mechanism 7 located at the starting position of the transmission path is meshed with the transmission gear 6; among two adjacent reduction transmission mechanisms 7 on the transmission path, the output gear 73 of the one located in front of the transmission path is meshed with the input gear 72 of the one located in the rear of the transmission path; it can be understood that the reduction transmission mechanism 7 has a deceleration function, so the number of teeth of the input gear 72 must be less than the number of teeth of the output gear 73, and generally speaking, the diameter size of the gear with more teeth is larger than the diameter size of the gear with less teeth;

[0045] The torque output shaft 8 is connected to the gear box 3 and is perpendicular to the output shaft. Among the multiple reduction transmission mechanisms 7 , the output gear 73 of the reduction transmission mechanism 7 at the end of the transmission path is in transmission connection with the torque output shaft 8 .

[0046] When working, the power transmission process of the reduction device is motor 1→output shaft→worm 2→worm wheel 5→transmission gear 6→input gear 72 of the reduction transmission mechanism 7 located at the starting position of the transmission path→output gear 73 of the reduction transmission mechanism 7 located at the starting position of the transmission path→other reduction transmission mechanisms 7→input gear 72 of the reduction transmission mechanism 7 located at the end position of the transmission path→output gear 73 of the reduction transmission mechanism 7 located at the end position of the transmission path→torque transmission shaft 8.

[0047] The reduction gear of the utility model is based on the fact that the length direction of the motor 1 is parallel to the length direction of the reduction gear and the length direction of the gear box 3 is perpendicular to the length direction of the motor 1, that is, the length direction of the gear box 3 is set at 90° to the length direction of the motor 1, so that the length of the reduction gear is relatively short, the overall structure of the reduction gear is more compact, which is conducive to the reasonable stacking of other components on the specific application equipment, and thus the ratio of the dimensions of the specific application equipment in all directions is more reasonable; by setting the first connecting shaft 4 to be perpendicular to the output shaft, the extension direction of the first connecting shaft 4 is changed, so that the worm wheel 5 and the transmission gear 6 installed on the first connecting shaft 4 are installed more compactly, and the reduction gear will not occupy more space in the length direction; in addition, based on the fact that the second connecting shafts 71 of the plurality of reduction transmission mechanisms 7 are all perpendicular to the output shaft, and in the two adjacent reduction transmission mechanisms 7 on the transmission path, the output gear 73 of the one located in the front of the transmission path is meshed with the input gear 72 located in the rear of the transmission path, so that the input gear installed on the second connecting shaft 71 The wheel 72 and the output gear 73 will not cause the reduction device to occupy more space in the length direction, further improving the structural compactness of the reduction device; and the multiple reduction transmission mechanisms 7 further reduce the output speed of the motor 1 and increase the output torque of the motor 1; in addition, the torque transmission shaft 8 is connected to the gear box 3, and the torque transmission shaft 8 is perpendicular to the output shaft, which further improves the structural compactness of the reduction device and avoids the existence of narrow and long parts of the reduction device; and, since the multiple reduction transmission mechanisms 7 are arranged in sequence according to the transmission path, the transmission path extends along the length direction of the gear box 3, so that the reduction transmission mechanism 7 makes full use of the space in the length direction of the gear box 3, improves the space utilization rate in the length direction of the gear box 3, and avoids occupying the space in the width direction of the gear box 3 and increasing the overall length of the reduction device; therefore, based on the more compact overall structure of the reduction device, it is more conducive to installing the reduction device on a specific application device, and is conducive to the reasonable stacking of other components on the specific application device, so that the dimensional ratios of the specific application device in all directions are more reasonable.

[0048] In one embodiment, the motor 1 and the gear box 3 form an L-shaped structure, which is more compact. After the reduction gear is installed on a specific application device, it is more convenient to reasonably stack other components of the specific application device. It is understandable that the motor 1 and the gear box 3 can also form a T-shaped structure.

[0049] In one embodiment, based on the existing N20 engine having a ratio of the length dimension of the gearbox 3 to the width dimension of the gearbox 3 of 18:12, in order to improve the installation compactness of the N20 engine in a targeted manner, the ratio of the length dimension of the gearbox 3 to the width dimension of the gearbox 3 is maintained at 18:12.

[0050] In one embodiment, there are four reduction transmission mechanisms 7, the torque output shaft 8 is provided with terminal output teeth 9, and the output gear 73 of the reduction transmission mechanism 7 located at the end of the transmission path among the multiple reduction transmission mechanisms 7 is meshed with the terminal output teeth 9. In this way, the worm gear 5 and the transmission gear 6 sleeved on the first connecting shaft 4, the four reduction transmission mechanisms 7 and the terminal output teeth 9 on the torque output shaft 8 constitute a six-stage reduction torque increase transmission, so that the motor 1 has a larger output torque after being assisted by the gear box 3.

[0051] See also Figure 1 In one embodiment, the gear box 3 includes a first clamping plate 31 , an adapter plate 32 and a second clamping plate 33 .

[0052] The first clamping plate 31 and the second clamping plate 33 are arranged opposite to each other so that other components can be stored therebetween. The two ends of the first connecting shaft 4 are respectively connected to the first clamping plate 31 and the second clamping plate 33. The two ends of the second connecting shaft 71 are respectively connected to the first clamping plate 31 and the second clamping plate 33.

[0053] The two opposite sides of the adapter plate 32 are respectively connected to the first clamping plate 31 and the second clamping plate 33, and the adapter plate 32 is connected to the motor. In this way, the gear box 3 has a simple structure and low manufacturing cost, and is conducive to easier and more stable installation of the first connecting shaft 4 and the second connecting shaft 71.

[0054] In one embodiment, the adapter plate 32 and the motor may be connected together by screws, or the adapter plate 32 and the motor may be connected together by welding.

[0055] See also Figure 1 In one embodiment, one of the first clamping plate 31 and the adapter plate 32 is provided with a first embedding groove 321, and the other is provided with a first embedding block 311, and the first embedding block 311 is embedded in the first embedding groove 321. In this way, the first clamping plate 31 and the adapter plate 32 are also reinforced by a mortise and tenon structure, so that fewer fasteners are required between the two, further strengthening the connection stability between the two, and reducing the demand for the number of fasteners.

[0056] See also Figure 3 In one embodiment, one of the second clamping plate 33 and the adapter plate 32 is provided with a second embedding groove 322, and the other is provided with a second embedding block 331, and the second embedding block 331 is embedded in the second embedding groove 322. In this way, the second clamping plate 33 and the adapter plate 32 are also reinforced by a mortise and tenon structure, so that fewer fasteners are required between the two, further strengthening the connection stability between the two, and reducing the demand for the number of fasteners.

[0057] In one embodiment, in order to further reduce the difficulty of fastening the first clamping plate 31 , the adapter plate 32 and the second clamping plate 33 , the first clamping plate 31 is connected to the adapter plate 32 by a first screw, and the second clamping plate 33 is connected to the second clamping plate 33 by a second screw.

[0058] See also Figure 1-Figure 3 In one embodiment, the first clamping plate 31 and the second clamping plate 33 are connected by multiple inserting tubes 10, and the axial direction of the inserting tube 10 is parallel to the axial direction of the first screw, and the axial direction of the inserting tube 10 is parallel to the axial direction of the second screw. Among them, the first screw is installed in the first screw hole 313 of the first clamping plate 31, and the second screw is installed in the second screw hole 333 of the second clamping plate 33. In this way, on the basis that the first screw prevents the first clamping plate 31 and the adapter plate 32 from moving along the axial direction of the inserting tube 10, and on the basis that the second screw prevents the second clamping plate 33 and the adapter plate 32 from moving along the axial direction of the inserting tube 10, the inserting tube 10 makes the first clamping plate 31 and the second clamping plate 33 restricted by the inserting tube 10, and cannot move along the radial direction of the inserting tube 10, that is, the connection relationship between the first clamping plate 31, the adapter plate 32 and the second clamping plate 33 is simple, and the fixing effect is good. In addition, the inserting tube 10 is a hollow structure, and the lightweight structure makes it lower in cost and lighter in weight.

[0059] See also Figure 1 and Figure 3 In one embodiment, in order to facilitate the installation of the cannula 10 and prevent it from moving, the first clamping plate 31 is provided with a plurality of first plug holes 312, and the second clamping plate 33 is provided with a plurality of second plug holes 332. The two ends of the cannula 10 are respectively plugged into one of the first plug holes 312 and one of the second plug holes 332.

[0060] In one embodiment, the worm 2 is a three-start worm, that is, the worm 2 has three spirals and a relatively low reduction ratio. For every rotation of the three-start worm, the worm wheel 5 advances three teeth, so the reduction ratio is lower than that of the double-start worm. Since the three-start worm has a low reduction ratio, its efficiency is higher and its friction and heat generation are less.

[0061] Due to the optimization of the reduction ratio and the increase in the number of gear stages (i.e., the improvement to six-stage transmission), a greater torque output is achieved and the speed of the motor 1 is ensured to be within a reasonable range; therefore, this reduction device is suitable for application scenarios with high torque output and high efficiency, such as precision machinery, robots, etc.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0064] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A reduction gear, characterized in that: include: A motor, wherein the motor is provided with an output shaft, and the length direction of the motor is parallel to the length direction of the reduction gear; A worm, the worm being sleeved on the output shaft so that the worm rotates along with the output shaft; A gear box, the gear box is connected to the motor; the length direction of the gear box is perpendicular to the length direction of the motor; a first connecting shaft, the first connecting shaft being arranged on the gear box; A worm wheel, the worm wheel is sleeved on the first connecting shaft, and the worm wheel is meshed with the worm; A transmission gear, which is sleeved on the first connecting shaft and rotates with the worm gear; A plurality of reduction transmission mechanisms, the plurality of reduction transmission mechanisms are sequentially arranged according to a transmission path, the transmission path extends along the length direction of the gear box, the reduction transmission mechanism comprises a second connecting shaft, an input gear and an output gear, the input gear is sleeved on the second connecting shaft, the output gear is sleeved on the second connecting shaft and rotates following the input gear; among the plurality of reduction transmission mechanisms, the input gear of the reduction transmission mechanism located at the starting position of the transmission path is meshed with the transmission gear; among two adjacent reduction transmission mechanisms on the transmission path, the output gear of the one located at the front of the transmission path is meshed with the input gear of the one located at the rear of the transmission path; A torque output shaft is connected to the gear box. Among the plurality of reduction transmission mechanisms, the output gear of the reduction transmission mechanism located at the end of the transmission path is in transmission connection with the torque output shaft.

2. The reduction gear device according to claim 1, characterized in that: The motor and the gear box form an L-shaped structure.

3. The reduction gear device according to claim 1, characterized in that: The ratio of the length dimension of the gear box to the width dimension of the gear box is 18:

12.

4. The reduction gear device according to claim 1, characterized in that: There are four reduction transmission mechanisms, and the torque output shaft is provided with terminal output teeth. The output gear of the reduction transmission mechanism located at the end of the transmission path among the multiple reduction transmission mechanisms is meshed with the terminal output teeth.

5. The reduction gear device according to claim 1, characterized in that: The gear box comprises a first clamping plate, an adapter plate and a second clamping plate; The first clamping plate and the second clamping plate are arranged spaced apart from each other and opposite to each other, two ends of the first connecting shaft are respectively connected to the first clamping plate and the second clamping plate, and two ends of the second connecting shaft are respectively connected to the first clamping plate and the second clamping plate; The opposite two sides of the adapter plate are respectively connected to the first clamping plate and the second clamping plate, and the adapter plate is connected to the motor.

6. The reduction gear device according to claim 5, characterized in that: One of the first clamping plate and the adapter plate is provided with a first embedding groove, and the other is provided with a first embedding block, and the first embedding block is embedded in the first embedding groove.

7. The reduction gear device according to claim 5, characterized in that: One of the second clamping plate and the adapter plate is provided with a second embedding groove, and the other is provided with a second embedding block, and the second embedding block is embedded in the second embedding groove.

8. The reduction gear device according to claim 6 or 7, characterized in that: The first clamping plate is connected to the adapter plate by a first screw, and the second clamping plate is connected to the second clamping plate by a second screw.

9. The reduction gear device according to claim 8, characterized in that: The first clamping plate and the second clamping plate are connected via a plurality of inserting tubes, the axial direction of the inserting tubes is parallel to the axial direction of the first screw, and the axial direction of the inserting tubes is parallel to the axial direction of the second screw.

10. The reduction gear device according to claim 9, characterized in that: The worm is a three-start worm.

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