Dustproof helical gear hardened tooth surface reducer

Abstract

This utility model relates to the field of speed reducer technology, and in particular to a helical gear hardened tooth surface speed reducer with dustproof function. It includes a motor body, the output end of which is connected to the speed reducer body via a flange. A support foot is fixedly connected to the bottom surface of the speed reducer body. An output shaft is rotatably inserted into the front side of the speed reducer body, and a dustproof sleeve is fixedly connected to the front side of the speed reducer body. This device, by fitting a dustproof sleeve around the outside of the output shaft, ensures that when the output shaft of the speed reducer body is installed with the equipment, the rubber gasket on the outer ring fits tightly against the equipment, pushing the outer ring to slide outside the inner ring while simultaneously compressing a spring. After installation, the compressed spring force ensures that the rubber gasket on the outer ring fits tightly against the outer side of the equipment, protecting the exposed part between the output shaft and the equipment from external dust intrusion at the connection point, resulting in good dustproof performance.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically to a helical gear hardened tooth surface speed reducer with dustproof function. Background Technology

[0002] Helical gear hardened tooth surface reducer refers to a reduction device that uses helical gears as the core transmission element in gear transmission. It has the characteristics of high load capacity, smooth transmission, low noise, and high efficiency. Through hardening treatment (such as quenching) and precision machining (such as gear grinding) of gear tooth surface, the tooth surface has high hardness and good wear resistance.

[0003] Chinese utility model patent CN217301515U discloses a dustproof speed reducer, which includes "a speed reducer and a motor fixed to the side wall of the speed reducer. A support assembly is fixed to the bottom of the speed reducer, and an output shaft is rotatably inserted into the side wall of the speed reducer. A connecting part is provided at the end of the motor away from the speed reducer. A fan fixed to the motor shaft is embedded in the connecting part, and positioning holes are symmetrically opened on the outer wall of the connecting part. An installation ring is fitted onto the connecting part, and a dust collection plate is embedded in the installation ring. A fixing tube is embedded in the side wall of the installation ring, and a telescopic device that is snapped into the connecting part is elastically inserted into the fixing tube." This device uses a detachable dust collection plate to protect the speed reducer from external dust entering the speed reducer in a high-dust environment.

[0004] However, in actual use, the output shaft of the reducer needs to be installed and connected to external equipment. In high-dust environments, the connection between the output shaft and the equipment is partially exposed. When the output shaft and the equipment rotate at high speed, dust enters the connection, causing the output shaft to wear and age faster, resulting in poor practicality. Utility Model Content

[0005] The purpose of this invention is to provide a helical gear hardened tooth surface reducer with dustproof function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a helical gear hardened tooth surface reducer with dustproof function, including a motor body, the output end of the motor body being installed and connected to the reducer body through a flange, and a support foot being fixedly connected to the bottom surface of the reducer body;

[0007] An output shaft is rotatably inserted into the front side of the reducer body, and a dustproof sleeve is fixedly connected to the front side of the reducer body.

[0008] The dustproof sleeve includes an outer ring, an annular plate fixedly connected to the end of the outer ring, a rubber gasket fixedly connected to the side of the annular plate, a limiting ring one fixedly connected to the inner wall of the end of the outer ring away from the annular plate, the inner side wall of the limiting ring one slidably connected to the outer wall of the inner ring, a limiting ring two fixedly connected to the end of the inner ring, and a spring sleeved on the outer side wall of the outer ring and the inner ring.

[0009] The beneficial effects of this utility model are as follows: This device has a dustproof sleeve fitted on the outside of the output shaft. When the output shaft of the reducer body is connected to the equipment, the rubber gasket on the side of the outer ring is tightly fitted with the equipment and pushes the outer ring to slide on the outside of the inner ring. At the same time, the compression spring is retracted into the reducer body. After installation, the outer ring, through the elastic force of the compressed spring, makes the rubber gasket on the side of the outer ring tightly fitted with the outer side of the equipment. The outer ring is fitted on the outside of the output shaft, so that the exposed part between the output shaft and the equipment is protected by the outer ring, so as to prevent external dust from entering the connection between the output shaft and the equipment, and the dustproof effect is good.

[0010] To ensure the device is installed securely:

[0011] The configuration is further improved so that the support feet are located on the bottom surfaces of both sides of the reducer body, and mounting holes are respectively opened inside the two ends of the support feet.

[0012] By adopting the above technical solution, the support feet are installed and fixed to the mounting base through the mounting holes at both ends. The entire device is installed and fixed to the mounting base through the support feet, making the device stable and preventing shaking or displacement during use.

[0013] To achieve effective protection at the connection point of the output shaft;

[0014] The dustproof sleeve is further configured such that it is fitted onto the outside of the output shaft, and the end of the inner ring away from the second limiting ring is fixedly connected to the front side of the reducer body.

[0015] By adopting the above technical solution, the dustproof sleeve is sleeved on the outside of the output shaft and fixedly connected to the reducer body, thereby forming effective protection for the connection of the output shaft.

[0016] To achieve a protective effect at the connection point of the output shaft:

[0017] The outer ring is further configured such that its inner side is sleeved on the outer side of the inner ring, and the outer side wall of the second limiting ring is slidably connected to the inner side wall of the outer ring.

[0018] By adopting the above technical solution, the inner ring is slidably connected to the inner wall of the outer ring through the outer wall of the limiting ring two, so that when the reducer body is installed, the outer ring slides outside the inner ring, thereby protecting the output shaft.

[0019] To achieve a tight seal between the inner and outer rings:

[0020] The following configuration is further defined: the inner diameter of the first limiting ring is the same as the outer diameter of the inner ring, and the outer diameter of the second limiting ring is the same as the inner diameter of the outer ring.

[0021] By adopting the above technical solution, the outer ring and the inner ring are tightly fitted together through the limiting ring one and the limiting ring two, preventing external dust from entering the dustproof sleeve through the connection.

[0022] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a left-side view of the overall structure of this utility model;

[0025] Figure 3 This is an exploded structural diagram of the dustproof sleeve of this utility model.

[0026] In the diagram: 1. Motor body; 2. Flange; 3. Gearbox body; 4. Support foot; 5. Output shaft; 6. Dustproof sleeve; 61. Outer ring; 611. Ring plate; 612. Limiting ring one; 62. Rubber gasket; 63. Inner ring; 631. Limiting ring two; 64. Spring. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0028] Please see Figures 1 to 3 A helical gear hardened tooth surface reducer with dustproof function includes a motor body 1. The output end of the motor body 1 is connected to the reducer body 3 through a flange 2. The bottom surface of the reducer body 3 is fixedly connected with a support foot 4.

[0029] The output shaft 5 is rotatably inserted into the front side of the reducer body 3, and a dustproof sleeve 6 is fixedly connected to the front side of the reducer body 3.

[0030] The dustproof sleeve 6 includes an outer ring 61, with a ring plate 611 fixedly connected to the end of the outer ring 61. A rubber gasket 62 is fixedly connected to the side of the ring plate 611. A limiting ring 612 is fixedly connected to the inner wall of the end of the outer ring 61 away from the ring plate 611. The inner side wall of the limiting ring 612 is slidably connected to the outer wall of the inner ring 63. A limiting ring 631 is fixedly connected to the end of the inner ring 63. A spring 64 is sleeved on the outer side wall of the outer ring 61 and the inner ring 63.

[0031] In this embodiment, as Figure 1 and Figure 2 As shown, the support feet 4 are located on the bottom surfaces of both sides of the reducer body 3, and mounting holes are respectively opened inside both ends of the support feet 4.

[0032] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the dustproof sleeve 6 is sleeved on the outside of the output shaft 5, and the end of the inner ring 63 away from the limiting ring 631 is fixedly connected to the front side of the reducer body 3.

[0033] In this embodiment, as Figure 3 As shown, the inner side of the outer ring 61 is sleeved on the outer side of the inner ring 63, and the outer side wall of the limiting ring 631 is slidably connected to the inner side wall of the outer ring 61.

[0034] In this embodiment, as Figure 3 As shown, the inner diameter of the first limiting ring 612 is the same as the outer diameter of the inner ring 63, and the outer diameter of the second limiting ring 631 is the same as the inner diameter of the outer ring 61.

[0035] The working process of this dustproof helical gear hardened tooth surface reducer is as follows:

[0036] When the reducer body 3 is installed with the equipment, the output shaft 5 on the side of the reducer body 3 is in contact with the rubber pad 62 when it is installed with the equipment, and the inner ring 63 is pushed towards the reducer body 3 while the spring 64 is squeezed and retracted into the reducer body 3.

[0037] When the outer ring 61 moves under force, the outer ring 61 is slidably connected to the outer wall of the inner ring 63 through the first limiting ring 612, and the inner ring 63 is slidably connected to the inner wall of the outer ring 61 through the second limiting ring 631, thereby achieving the effect of the outer ring 61 sliding on the inner ring 63.

[0038] After the reducer body 3 is installed with the equipment, the outer ring 61, through the elastic force of the compressed spring 64 on the outside, makes the rubber gasket 62 fit tightly against the side of the equipment. The rubber gasket 62 forms a sealing structure between the outer ring 61 and the equipment, thereby protecting the connection between the output shaft 5 and the equipment and preventing external dust from entering the connection between the output shaft 5 and the equipment.

[0039] The motor body 1 and the reducer body 3 are fixedly connected by the flange 2. The entire device is fixed to the mounting foundation by the support feet 4 on the bottom of the reducer body 3, so that the device can be placed stably.

[0040] The motor body 1, the reducer body 3, and the output shaft 5 are all mature technologies in this field and have been fully disclosed, so they will not be repeated in the specification.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A helical gear hardened tooth surface reducer with dustproof function, comprising a motor body (1), characterized in that: The output end of the motor body (1) is connected to the reducer body (3) via a flange (2), and the bottom surface of the reducer body (3) is fixedly connected with a support foot (4); The output shaft (5) is rotatably inserted into the front side of the reducer body (3), and a dustproof sleeve (6) is fixedly connected to the front side of the reducer body (3). The dustproof sleeve (6) includes an outer ring (61), with a ring piece (611) fixedly connected to the end of the outer ring (61), and a rubber pad (62) fixedly connected to the side of the ring piece (611). A limiting ring one (612) is fixedly connected to the inner wall of the end of the outer ring (61) away from the ring piece (611). The inner side wall of the limiting ring one (612) is slidably connected to the outer wall of the inner ring (63). A limiting ring two (631) is fixedly connected to the end of the inner ring (63). A spring (64) is sleeved on the outer side wall of the outer ring (61) and the inner ring (63).

2. The helical gear hardened tooth surface reducer with dustproof function as described in claim 1, characterized in that: The support feet (4) are located on the bottom surfaces of both sides of the reducer body (3), and mounting holes are provided inside both ends of the support feet (4).

3. The helical gear hardened tooth surface reducer with dustproof function as described in claim 1, characterized in that: The dustproof sleeve (6) is sleeved on the outside of the output shaft (5), and the end of the inner ring (63) away from the limiting ring (631) is fixedly connected to the front side of the reducer body (3).

4. The helical gear hardened tooth surface reducer with dustproof function as described in claim 1, characterized in that: The inner side of the outer ring (61) is sleeved on the outer side of the inner ring (63), and the outer side wall of the limiting ring (631) is slidably connected to the inner side wall of the outer ring (61).

5. The helical gear hardened tooth surface reducer with dustproof function as described in claim 1, characterized in that: The inner diameter of the first limiting ring (612) is the same as the outer diameter of the inner ring (63), and the outer diameter of the second limiting ring (631) is the same as the inner diameter of the outer ring (61).

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