Helical gear speed reducer with good heat dissipation effect

Abstract

The utility model relates to a helical gear speed reducer with a good heat dissipation effect, which comprises a speed reducer body and an output shaft, the end part of the output shaft penetrates out of the speed reducer body, the helical gear speed reducer also comprises a heat dissipation assembly, the heat dissipation assembly comprises an axial flow impeller and a flow guide cover, the axial flow impeller is connected to the output shaft and is positioned on one side of the speed reducer body, and the flow guide cover is positioned on the other side of the speed reducer body. The flow guide cover is arranged on the speed reducer body in a covering mode and wraps the axial flow impeller, the output shaft penetrates out of the flow guide cover, an air inlet is formed in the front end of the flow guide cover, an air outlet is formed in the rear end of the flow guide cover, and a flow guide channel communicated with the air inlet and the air outlet is formed between the flow guide cover and the speed reducer body. According to the helical gear speed reducer with the good heat dissipation effect, the heat dissipation effect of the speed reducer body is enhanced through the effect of the heat dissipation assembly, the axial flow impeller is driven by the output shaft rotating during working, an additional driving source is not needed, and the speed reducer has better economical efficiency and environmental protection performance during working.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a helical gear reducer with good heat dissipation effect. Background Art

[0002] Helical gear reducers generate heat when working. Existing helical gear reducers generally dissipate heat through heat conduction and natural convection, and the heat dissipation efficiency is poor. In order to enhance the heat dissipation effect of the helical gear reducer, the utility model patent: A helical gear reducer with good shock absorption and heat dissipation effect (Announcement No.: CN219932911U) discloses a helical gear reducer that dissipates heat and cools the reducer body through the setting of a water tank, a water pump, a heat dissipation pipe, a water inlet pipe and a water outlet pipe to improve the heat dissipation efficiency of the reducer. However, after the above-mentioned reducer is provided with heat dissipation devices such as a water tank, the structure of the reducer will be too complicated, which will increase the production cost. In addition, the operation of the water pump requires additional energy drive, which cannot meet the needs of green production well.

[0003] In view of the above problems, the present invention makes improvements. Utility Model Content

[0004] The utility model provides a helical gear reducer with good heat dissipation effect, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A helical gear reducer with good heat dissipation effect comprises a reducer body and an output shaft, wherein the end of the output shaft passes through the reducer body, and further comprises a heat dissipation component, wherein the heat dissipation component comprises an axial flow impeller and a guide cover, wherein the axial flow impeller is connected to the output shaft and is located on one side of the reducer body, and the guide cover is arranged on the reducer body and covers the axial flow impeller, wherein the output shaft passes through the guide cover, an air inlet is arranged at the front end of the guide cover, and an air outlet is arranged at the rear end, and a guide channel connecting the air inlet and the air outlet is formed between the guide cover and the reducer body.

[0007] Preferably, the air guide cover is composed of a front cover and a rear cover, the rear cover is in a cylindrical shape with openings at both ends and the rear port of the rear cover constitutes an air outlet, the rear cover is arranged on the reducer body and fixedly connected to the reducer body, the front cover is in a cylindrical shape with an opening at the rear end and a through hole matching the output shaft is opened on the front end surface of the front cover, the air inlet is arranged on the front end surface of the front cover, the output shaft passes through the through hole so that the front cover is arranged outside the axial flow impeller, and the front cover is fixedly connected to the rear cover so that the rear port of the front cover fits and is aligned with the front port of the rear cover.

[0008] Preferably, a mounting plate that fits the reducer body is formed on the rear cover, and the mounting plate is fastened to the reducer body by bolts. A clamping block and a first connecting block are formed on the rear port of the front cover, and a clamping groove corresponding to and matching the clamping block and a second connecting block corresponding to the first connecting block are formed on the rear cover. The clamping block is inserted into the clamping groove to align the first connecting block with the second connecting block, and the first connecting block and the second connecting block are fastened by bolts.

[0009] Preferably, a sealing ring is provided between the rear port of the front cover and the front port of the rear cover.

[0010] Preferably, a plurality of first guide plates abutting against the reducer body are formed on the inner wall of the rear cover.

[0011] Preferably, a plurality of limiting grooves corresponding to and matching the first guide plate are provided on the surface of the reducer body, and the end of the first guide plate extends into the limiting groove.

[0012] Preferably, a plurality of heat dissipation fins are formed on the outer surface of the rear cover.

[0013] Preferably, a second guide plate located between the reducer body and the axial flow impeller is fixedly connected to the first guide plate, and a front end surface of the second guide plate is in a conical shape.

[0014] In summary, the beneficial effect of the utility model is that through the cooperation of the axial flow impeller and the guide cover, the reducer can always maintain a rapid flow of air on the surface of the reducer body during operation, and take away the heat generated by the reducer body during operation, thereby achieving a better heat dissipation effect. Moreover, since the axial flow impeller is driven by the output shaft rotating during operation, no additional drive source is required, which improves the economy and environmental protection of the reduction work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is an exploded schematic diagram of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the front cover in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the rear cover in the utility model.

[0021] In the figure: 1. reducer body; 11. limit groove; 2. output shaft; 3. axial flow impeller; 4. guide cover; 41. front cover; 411. air inlet; 412. through hole; 413. clamping block; 414. first connecting block; 42. rear cover; 421. air outlet; 422. mounting plate; 423. clamping groove; 424. second connecting block; 425. first guide plate; 426. heat dissipation fins; 427. second guide plate; 43. sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the utility model Figure 1-5 , 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 them. Based on the embodiments of 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.

[0023] As shown in the figure, a helical gear reducer with good heat dissipation effect includes a reducer body 1 and an output shaft 2, the end of the output shaft 2 passes through the reducer body 1, and also includes a heat dissipation component, the heat dissipation component includes an axial flow impeller 3 and a guide cover 4, the axial flow impeller 3 is connected to the output shaft 2 and is located on one side of the reducer body 1, the guide cover 4 is arranged on the reducer body 1 to cover the axial flow impeller 3, the output shaft 2 passes through the guide cover 4, the front end of the guide cover 4 is provided with an air inlet 411, and the rear end is provided with an air outlet 421, and a guide channel connecting the air inlet 411 and the air outlet 421 is formed between the guide cover 4 and the reducer body 1.

[0024] Specifically, the structure of the air guide cover 4 is as follows: the air guide cover 4 is composed of a front cover 41 and a rear cover 42, the rear cover 42 is in a cylindrical shape with openings at both ends and the rear port of the rear cover 42 constitutes an air outlet 421, the rear cover 42 is arranged on the reducer body 1 and is fixedly connected to the reducer body 1, the front cover 41 is in a cylindrical shape with an opening at the rear end and a through hole 412 matching the output shaft 2 is opened on the front end surface of the front cover 41, the air inlet 411 is arranged on the front end surface of the front cover 41, the output shaft 2 passes through the through hole 412 so that the front cover 41 is arranged outside the axial flow impeller 3, the front cover 41 and the rear cover 42 are fixedly connected so that the rear port of the front cover 41 is fitted and aligned with the front port of the rear cover 42, and through the above structure, it is convenient to connect the axial flow impeller 3 to the output shaft 2 and be located in the air guide cover 4.

[0025] Specifically, the structure of the air deflector 4 being arranged on the reducer body 1: the rear cover 42 is formed with a mounting plate 422 that fits the reducer body 1, and the mounting plate 422 is fastened to the reducer body 1 by bolts to realize the fixed connection between the rear cover 42 and the reducer body 1, and a clamping block 413 and a first connecting block 414 are formed on the rear port of the front cover 41, and a clamping groove 423 corresponding to and matching the clamping block 413 and a second connecting block 424 corresponding to the first connecting block 414 are formed on the rear cover 42, and the clamping block 413 is clamped into the clamping groove 423 to align the first connecting block 414 with the second connecting block 424, and the first connecting block 414 and the second connecting block 424 are fastened by bolts to realize the fixed connection between the front cover 41 and the rear cover 42, and the connection mode between the rear cover 42 and the reducer body 1 and the front cover 41 and the rear cover 42 makes the front cover 41 and the rear cover 42 very easy to disassemble and assemble.

[0026] In the above embodiment, when the reducer is working, the output shaft 2 rotates to drive the axial flow impeller 3 to rotate, and the axial flow impeller 3 rotates to suck the outside air into the air guide cover 4 through the air inlet 411, and the air entering the air guide cover 4 is blown toward the reducer body 1 and flows toward the air outlet 421 in the guide channel and flows through the surface of the reducer body 1, and finally blows out of the guide channel from the air outlet 421. In the above manner, the reducer always maintains a rapid flow of air on the surface of the reducer body 1 during operation, and the air generated when the reducer body 1 is working is The heat is taken away, achieving a better heat dissipation effect, and because the axial flow impeller 3 is driven by the output shaft 2 that rotates during operation, no additional driving source is required, which improves the economy and environmental protection during deceleration operation, and the air guide cover 4 is split into a front cover 41 and a rear cover 42 and fastened by bolts, which facilitates the production and assembly of components of the axial flow impeller 3, the air guide cover 4 and other heat dissipation components, and is convenient for cleaning and maintenance of the axial flow impeller 3 and the air guide cover 4 by disassembling the front cover 41 and the rear cover 42 to ensure the heat dissipation effect of the heat dissipation component on the reducer.

[0027] Preferably, a sealing ring 43 is provided between the rear port of the front cover 41 and the front port of the rear cover 42, and the sealing ring 43 strengthens the sealing after the front cover 41 and the rear cover 42 are fixedly connected, thereby ensuring the rapid flow of air in the air guide cover 4 to play a role in heat dissipation of the reducer body 1.

[0028] Preferably, a plurality of first guide plates 425 abutting against the reducer body 1 are formed on the inner wall of the rear cover 42, and the first guide plates 425 extend along the flow direction of the air in the guide channel. The first guide plates 425 divide the guide channel into a plurality of smaller guide channels, and guide the air flowing in the guide channel, thereby ensuring the rapid flow of air in the guide channel and ensuring the heat dissipation effect on the reducer body 1.

[0029] Preferably, a plurality of limiting grooves 11 corresponding to and matching the first guide plate 425 are provided on the surface of the reducer body 1, and the end of the first guide plate 425 extends into the limiting groove 11, and the limiting groove 11 limits the first guide plate 425, so that the first guide plate 425 can be more stably pressed against the reducer body 1 to separate the guide channel, and the cooperation between the first guide plate 425 and the limiting groove 11 also supports and limits the fixed connection between the rear cover 42 and the reducer body 1, thereby making the connection between the rear cover 42 and the reducer body 1 more stable.

[0030] Preferably, a plurality of heat dissipation fins 426 are formed on the outer surface of the rear cover 42 , and the heat dissipation fins 426 enhance the heat dissipation performance of the rear cover 42 , thereby enhancing the heat dissipation effect on the reducer body 1 .

[0031] Preferably, the first guide plate 425 is fixedly connected to a second guide plate 427 located between the reducer body 1 and the axial flow impeller 3, and the front end surface of the second guide plate 427 is conical. The second guide plate 427 diffuses and guides the air sucked into the front cover 41 by the axial flow impeller 3, so that the air can quickly flow through the conical front end surface of the second guide plate 427 and enter the rear cover 42, thereby ensuring the flow speed of the air and allowing the air flowing through the surface of the reducer body 1 to more comprehensively cover the surface of the reducer body 1, thereby ensuring the heat dissipation effect on the reducer pump body.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A helical gear reducer with good heat dissipation effect, comprising a reducer body (1) and an output shaft (2), wherein the end of the output shaft (2) passes through the reducer body (1), and is characterized in that: The heat dissipation device further comprises a heat dissipation component, the heat dissipation component comprising an axial flow impeller (3) and a guide cover (4), the axial flow impeller (3) being connected to the output shaft (2) and being located on one side of the reducer body (1), the guide cover (4) being arranged on the reducer body (1) and covering the axial flow impeller (3), the output shaft (2) passing through the guide cover (4), the guide cover (4) being provided with an air inlet (411) at the front end and an air outlet (421) at the rear end, and a guide channel connecting the air inlet (411) and the air outlet (421) being formed between the guide cover (4) and the reducer body (1).

2. A helical gear reducer with good heat dissipation effect according to claim 1, characterized in that: The air guide cover (4) is composed of a front cover (41) and a rear cover (42); the rear cover (42) is in a cylindrical shape with openings at both ends and a rear port of the rear cover (42) forms an air outlet (421); the rear cover (42) is arranged on the reducer body (1) and is fixedly connected to the reducer body (1); the front cover (41) is in a cylindrical shape with an opening at the rear end and a through hole (412) matching the output shaft (2) is opened on the front end surface of the front cover (41); the air inlet (411) is arranged on the front end surface of the front cover (41); the output shaft (2) passes through the through hole (412) so that the front cover (41) is arranged outside the axial flow impeller (3); the front cover (41) and the rear cover (42) are fixedly connected so that the rear port of the front cover (41) fits and is aligned with the front port of the rear cover (42).

3. A helical gear reducer with good heat dissipation effect according to claim 2, characterized in that: The rear cover (42) is formed with a mounting plate (422) that fits with the reducer body (1); the mounting plate (422) and the reducer body (1) are fastened by bolts; a clamping block (413) and a first connecting block (414) are formed on the rear port of the front cover (41); a clamping groove (423) corresponding to and matching the clamping block (413) and a second connecting block (424) corresponding to the first connecting block (414) are formed on the rear cover (42); the clamping block (413) is clamped into the clamping groove (423) so that the first connecting block (414) and the second connecting block (424) are aligned; the first connecting block (414) and the second connecting block (424) are fastened by bolts.

4. A helical gear reducer with good heat dissipation effect according to claim 3, characterized in that: A sealing ring (43) is provided between the rear port of the front cover (41) and the front port of the rear cover (42).

5. The helical gear reducer with good heat dissipation effect according to claim 2, characterized in that: A plurality of first guide plates (425) are formed on the inner wall of the rear cover (42) and are abutted against the reducer body (1).

6. A helical gear reducer with good heat dissipation effect according to claim 5, characterized in that: A plurality of limiting grooves (11) corresponding to and matching the first guide plate (425) are provided on the surface of the reducer body (1), and the ends of the first guide plate (425) extend into the limiting grooves (11).

7. A helical gear reducer with good heat dissipation effect according to claim 6, characterized in that: A plurality of heat dissipation fins (426) are formed on the outer surface of the rear cover (42).

8. The helical gear reducer with good heat dissipation effect according to claim 5, characterized in that: A second flow guide plate (427) located between the reducer body (1) and the axial flow impeller (3) is fixedly connected to the first flow guide plate (425); a front end surface of the second flow guide plate (427) is in the shape of a conical surface.

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