Direction-variable speed reducer with matched force output section pieces and curved-surface tooth pieces

Abstract

The utility model relates to the field of speed reducers, in particular to a direction-variable speed reducer with matched force output section pieces and curved-surface tooth pieces. The curved-surface tooth pieces are meshed with the output section pieces, the output shaft can achieve non-90-degree torque output in the longitudinal direction and nonzero-degree torque output in the axial direction, in a specific environment, medium parts such as a chain wheel and a belt wheel can be omitted, the useful work of the speed reducer is greatly improved, and intermediate equipment investment is saved; meanwhile, the fixed position of the output shaft is thickened and lengthened, and most useless stress of the output shaft is conducted to the gear box, so that interference of the useless stress on the output section piece through the output shaft is greatly reduced, the damage rate of the output section piece, a curved tooth piece on the output section shaft gear set, a middle section piece and other parts is greatly reduced, and the service life of the output shaft is prolonged. The maintenance frequency of the speed reducer is reduced.

Description

Technical Field

[0001] The utility model discloses a variable-direction reducer with an output segment piece and a curved surface tooth piece matched, and relates to the field of reducers. Background Art

[0002] With the development of science and technology, the requirements for reducers in different scenarios are getting higher and higher, and the demand is even more vigorous. Among them, the curved gear piece is used as a motor piece, which realizes the phenomenon that ordinary reducers cannot turn at right angles to output torque; despite this, during use, the middle section, output section, output shaft and bearings at both ends of the output section shaft and other parts, due to many factors such as ambient temperature, material properties, and processing technology, the bearing chamber of the rear cover of the gear housing, the bearing chamber at the bottom of the gear housing, the upper and lower bearings and the output shaft have certain tolerances in the three-dimensional spatial coordinate values. The combination of multiple tolerances, when the output shaft is subjected to strong external force, the output shaft exerts a strong impact force on the bearing, then the bearing on the bearing chamber, and then the output shaft section on the output section shaft teeth, causing the reducer gear set gear piece and bearing to have high-frequency failures and damage phenomena. In addition, the environment requires the input of torque in the axial direction at non-zero degrees or in the longitudinal direction at non-right angles, but most reducers cannot be directly connected to the output shaft. For this reason, in special environments, it is only possible to use additional parts such as sprockets and pulleys to achieve axial non-zero degrees or longitudinal non-90 degrees connection with the input device shaft. This not only reduces the efficiency of the motor, but also increases the cost of the motor and increases the requirements for the working environment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a variable-direction reducer in which an output segment piece and a curved surface tooth piece cooperate.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A variable-direction reducer with an output segment and a curved tooth piece, comprising a motor and a gear box;

[0006] The motor is provided with a rotor shaft;

[0007] The gear box is provided with a middle section shaft gear set, an output section shaft gear set, and an output shaft gear set;

[0008] The middle section shaft gear set includes a middle section shaft and a motor sheet connected and fixed to the middle section shaft;

[0009] The output section shaft gear set comprises an output section shaft, a middle section plate and a curved surface gear plate connected and fixed to the output section shaft;

[0010] The output shaft gear set includes an output shaft and an output segment connected and fixed to the output shaft;

[0011] A gear is provided at the front end of the rotor shaft, the gear at the front end of the rotor shaft meshes with the motor sheet, the motor sheet on the middle section shaft meshes with the middle section sheet on the output section shaft, and the curved tooth sheet on the output section shaft meshes with the output section sheet of the output shaft;

[0012] The gear box is provided with a bearing fixing base and a fixing cover for fixing the output shaft. The bearing fixing base is fixed in the gear box, and the fixing cover can be connected to the bearing fixing base by bolts. Two output shaft bearings are arranged at intervals on the output shaft, and the two output shaft bearings are locked and fixed between the bearing fixing base and the fixing cover.

[0013] Furthermore, arcuate teeth are provided on the outer periphery of the output segment, the output segment is provided with a front end face and a rear end face, the arcuate teeth protrude from the front end face and the rear end face at different heights; the end face of the curved tooth piece is provided with arcuate teeth, the arcuate teeth are provided with an inner end face and an outer end face, the inner end face and the outer end face have different heights, and the arcuate teeth of the output segment are meshed with the arcuate teeth of the curved tooth piece.

[0014] The advantages of the utility model are:

[0015] 1. This fastening method is equivalent to thickening and lengthening the fixed position of the output shaft. Most of the useless force of the output shaft will be transmitted to the gear box, which greatly reduces the interference of the useless force on the output segment through the output shaft, so that the damage rate of the output segment, the curved tooth piece on the output segment shaft gear set, the middle segment, and other parts is greatly reduced, reducing the maintenance frequency of the reducer.

[0016] 2. The curved tooth pieces are meshed with the output segments, so that the output shaft can achieve non-90 degrees in the longitudinal direction and non-zero degrees in the axial direction to output torque. In certain environments, intermediate parts such as sprockets and pulleys can be omitted, which greatly improves the useful work of the reducer and saves investment in intermediate equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the gearbox of the utility model;

[0020] Figure 3 It is a schematic diagram of the matching structure of the rotor shaft, the middle section shaft gear set, the output section shaft gear set, and the output shaft gear set of the utility model;

[0021] Figure 4It is a schematic diagram of the structure explosion of the rotor shaft, the middle section shaft gear set, the output section shaft gear set, and the output shaft gear set of the utility model;

[0022] Figure 5 It is a schematic diagram of the matching structure of the output segment and the curved tooth piece of the utility model;

[0023] Reference numerals:

[0024] Motor 1, rotor shaft 101, rotor shaft bearing 102;

[0025] Gear box 2, bearing fixing base frame 201, fixing cover 202, bearing chamber A 203, bearing chamber B 204, oil seal chamber 205, gear housing rear cover 206, gear housing 207;

[0026] Middle section shaft gear set 3, middle section shaft 301, motor plate 302, middle section shaft bearing 303;

[0027] Output section shaft gear set 4, output section shaft 401, middle section piece 402, curved surface gear piece 403, inner end surface 403a, outer end surface 403b, output section shaft bearing 404;

[0028] Output shaft gear set 5, output shaft 501, output segment 502, front end face 502a, rear end face 502b, output shaft bearing 503. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0030] The following combination Figure 1-Figure 5 , describe in detail the technical solutions provided by each embodiment of the present application.

[0031] A variable-direction reducer with an output segment and a curved tooth piece, comprising:

[0032] Motor 1 and gearbox 2;

[0033] The motor 1 is composed of a motor rear cover, a corrugated ring, a screw, a stator, a rotor, a bearing, a terminal box and other parts, which are prior art and thus will not be described in detail, wherein the rotor is provided with a rotor shaft 101;

[0034] The gearbox 2 is provided with a middle section shaft gear set 3, an output section shaft gear set 4, and an output shaft gear set 5. The middle section shaft gear set 3 includes a middle section shaft 301 and a motor piece 302 connected and fixed to the middle section shaft 301 by a flat key and a retaining spring. The output section shaft gear set 4 includes an output section shaft 401 and a middle section piece 402 and a curved tooth piece 403 connected and fixed to the output section shaft 401 by a flat key and a retaining spring. The output shaft gear set 5 includes an output shaft 501 and an output section piece 502 connected and fixed to the output shaft 501 by a flat key and a retaining spring. A gear is provided at the front end of the rotor shaft 101 to mesh with the motor piece 302. The motor piece 302 on the middle section shaft 301 meshes with the middle section piece 402 on the output section shaft 401. The curved tooth piece 403 on the output section shaft 401 meshes with the output section piece 502 of the output shaft 501.

[0035] Preferably, the gearbox 2 is provided with a bearing fixing base frame 201 and a fixing cover 202 for fixing the output shaft 501. The bearing fixing base frame 201 is integrally cast in the gearbox 2. The fixing cover 202 can be connected to the bearing fixing base frame 201 by bolts. The output shaft 501 is provided with two output shaft bearings 503 arranged at intervals. The two output shaft bearings 503 are locked and fixed between the bearing fixing base frame 201 and the fixing cover 202. This fastening method is equivalent to thickening and lengthening the fixed position of the output shaft 501. Most of the useless force of the output shaft 501 will be transmitted to the gearbox 2, which greatly reduces the interference of the useless force on the output segment 502 through the output shaft 501, so that the damage rate of the output segment 502, the curved tooth piece 403 on the output segment shaft gear set 4, the middle segment 402, and other parts is greatly reduced, and the maintenance frequency of the reducer is reduced.

[0036] Preferably, the outer periphery of the output segment 502 is provided with arcuate teeth, and the output segment 502 has a front end face 502a and a rear end face 502b, and the arcuate teeth protrude from the front end face 502a and the rear end face 502b at different heights to form a certain slope; the corresponding end face of the curved tooth piece 403 is provided with arcuate teeth, and the arcuate teeth have an inner end face 403a and an outer end face 403b, and the inner end face 403a and the outer end face 403b have different heights to form a certain slope. By designing the arcuate teeth on the output segment 502 and the curved tooth piece 403, non-horizontal output torque is achieved. Specifically, when the output shaft 501 is in the longitudinal direction (such as Figure 5 ), the different heights of the protruding front end face 502a and the rear end face 502b of the arc-shaped teeth of the output segment 502 form different slopes, and when the slope of the curved tooth piece 403 remains unchanged, the output of the output shaft 501 at various angles can be achieved; when the output shaft 501 is in the axial direction, when the slope of the arc-shaped teeth of the output segment 502 remains unchanged, the different heights of the inner end face 403a and the outer end face 403b of the arc-shaped teeth of the curved tooth piece 403 form different slopes, and non-horizontal output torque can also be achieved in the axial direction.

[0037] The overall installation sequence of the utility model is as follows:

[0038] First, the motor plate 302 is installed on the middle shaft 301 by means of a flat key and a retaining spring to form the middle shaft gear set 3;

[0039] Then, the middle section piece 402 and the curved surface tooth piece 403 are installed on the output section shaft 401 by means of a flat key and a retaining spring to form the output section shaft gear set 4;

[0040] Then, the output section 502 is installed on the output shaft 501 by means of a flat key and a retaining spring, and two output shaft bearings 503 are installed in the middle of the output shaft 501 to form an output shaft gear set 5;

[0041] Then install the middle shaft bearing 303 at the lower end and the output shaft bearing 404 in the bearing chamber A203 and the bearing chamber B204 of the gear box 2 respectively;

[0042] Next, the outer end of the output shaft 501 of the output shaft gear set 5 passes through the oil seal hole of the oil seal chamber 205, and the output shaft bearing 503 is placed in the bearing fixing base 201;

[0043] Then, the lower end of the middle shaft 301 is assembled with the middle shaft bearing 303 at the lower end, and the lower end of the output shaft 401 is assembled with the output shaft bearing 404 at the lower end;

[0044] Then, the teeth of the motor plate 302 of the middle shaft 301 are meshed with the middle plate 402, and the curved tooth plate 403 is meshed with the output plate 502;

[0045] Next, align the bearing groove of the fixed cover 202 with the output shaft bearing 503, and use a bolt to pass through the screw hole of the fixed cover 202 and screw it into the threaded hole of the bearing fixing base 201 to secure the output shaft 501 on the bearing fixing base 201;

[0046] Then, the middle section shaft bearing 303 and the output section shaft bearing 404 are pressed into the upper ends of the middle section shaft 301 and the output section shaft 401 respectively;

[0047] Then, the bearing chamber of the gear housing rear cover 206 is aligned with the middle shaft bearing 303 and the output shaft bearing 404 at the upper end, and is assembled on the gear housing 207 or the gear housing rear cover 206 using fixing pins and sealing rings according to the technical process, and bolts are passed through the screw holes of the gear housing rear cover 206 and screwed into the threaded holes of the gear housing 207, so that the gear housing rear cover 206 is fixed on the gear housing 207, and the gear box 2 is assembled;

[0048] Then, the rotor shaft bearing 102 at the front end of the rotor shaft 101 of the motor 1 is completely pressed into the bearing chamber of the gear housing rear cover 206 , so that the gear of the rotor shaft 101 is meshed with the motor plate 302 .

[0049] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0050] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A variable-direction reducer with an output segment and a curved tooth piece, characterized in that: It comprises a motor (1) and a gear box (2); The motor (1) is provided with a rotor shaft (101); The gear box (2) is provided with a middle section shaft gear set (3), an output section shaft gear set (4), and an output shaft gear set (5); The middle shaft gear set (3) comprises a middle shaft (301) and a motor plate (302) connected to and fixed on the middle shaft (301); The output section shaft gear set (4) comprises an output section shaft (401), a middle section plate (402) and a curved surface gear plate (403) connected to and fixed on the output section shaft (401); The output shaft gear set (5) comprises an output shaft (501) and an output segment (502) connected to and fixed on the output shaft (501); A gear is provided at the front end of the rotor shaft (101), the gear at the front end of the rotor shaft (101) meshes with the motor plate (302), the motor plate (302) on the middle section shaft (301) meshes with the middle section plate (402) on the output section shaft (401), and the curved tooth plate (403) on the output section shaft (401) meshes with the output section plate (502) of the output shaft (501); The gear box (2) is provided with a bearing fixing base frame (201) and a fixing cover (202) for fixing an output shaft (501); the bearing fixing base frame (201) is fixed in the gear box (2); the fixing cover (202) can be connected to the bearing fixing base frame (201) by bolts; two output shaft bearings (503) are arranged at intervals on the output shaft (501); the two output shaft bearings (503) are locked and fixed between the bearing fixing base frame (201) and the fixing cover (202).

2. A variable-direction reducer with a matching output segment and curved tooth piece according to claim 1, characterized in that: The output segment (502) is provided with arc-shaped teeth on its outer periphery, the output segment (502) is provided with a front end face (502a) and a rear end face (502b), and the arc-shaped teeth of the output segment (502) protrude from the front end face (502a) and the rear end face (502b) at different heights; the end face of the curved tooth piece (403) is provided with arc-shaped teeth, the arc-shaped teeth of the curved tooth piece (403) are provided with an inner end face (403a) and an outer end face (403b), and the inner end face (403a) and the outer end face (403b) are at different heights, and the arc-shaped teeth of the output segment (502) are meshed with the arc-shaped teeth of the curved tooth piece (403).

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