阅读说明：本技术 一种改良的减速机结构 (Improved speed reducer structure ) 是由 尹东明 尹贺 房文平 于 2019-09-27 设计创作，主要内容包括：本发明涉及减速机装置技术领域,尤其是指一种改良的减速机结构,其包括减速机体和固定座,所述固定座包括上固定座和下固定座,所述上固定座和所述下固定座相互扣合固定后形成用于安装所述减速机体的固定槽,减速机体包括安装法兰；所述固定槽的内壁环设有缓冲机构；所述上固定座和下固定座相互远离的一侧均设置有U形固定架,所述U形固定架贯穿设置有多个安装孔；所述U形固定架的外侧壁安装面设置有缓冲塑胶垫。本发明结构新颖,实现本发明的不同方位的安装选择,减少外界安装环境的限制；使得减速机体产生较好的减震缓冲作用,减少减速机体因震动与固定槽内壁摩擦碰撞而产生的噪音,结构新颖、可靠。(The invention relates to the technical field of speed reducer devices, in particular to an improved speed reducer structure, which comprises a speed reducer body and a fixed seat, wherein the fixed seat comprises an upper fixed seat and a lower fixed seat, the upper fixed seat and the lower fixed seat are mutually buckled and fixed to form a fixed groove for mounting the speed reducer body, and the speed reducer body comprises a mounting flange; the inner wall of the fixing groove is annularly provided with a buffer mechanism; the side, away from each other, of each of the upper fixing seat and the lower fixing seat is provided with a U-shaped fixing frame, and a plurality of mounting holes are formed in the U-shaped fixing frames in a penetrating manner; and a buffer plastic pad is arranged on the mounting surface of the outer side wall of the U-shaped fixing frame. The invention has novel structure, realizes the installation selection in different directions and reduces the limitation of external installation environment; the speed reducer body has a good damping and buffering effect, noise generated by friction collision between vibration and the inner wall of the fixing groove is reduced, and the structure is novel and reliable.)

1. An improved speed reducer structure is characterized in that: the speed reducer comprises a speed reducer body and a fixed seat, wherein the fixed seat comprises an upper fixed seat and a lower fixed seat, the upper fixed seat and the lower fixed seat are mutually buckled and fixed to form a fixed groove for mounting the speed reducer body, the speed reducer body comprises a mounting flange arranged on the peripheral wall of the speed reducer body, and the mounting flange is arranged at one end of the fixed groove and is fixedly connected with the fixed seat; the speed reducer body is sleeved in the fixing groove along the length direction of the fixing groove, and a buffer mechanism used for being in close contact with the speed reducer body to form the speed reducer body is annularly arranged on the inner wall of the fixing groove; the side, away from each other, of each of the upper fixing seat and the lower fixing seat is provided with a U-shaped fixing frame, and a plurality of mounting holes are formed in the U-shaped fixing frames in a penetrating manner; and a buffer plastic pad is arranged on the mounting surface of the outer side wall of the U-shaped fixing frame.

2. An improved speed reducer structure according to claim 1, wherein: the mounting hole penetrates through the buffering plastic pad.

3. An improved speed reducer structure according to claim 1, wherein: go up the fixing base with all be provided with inside sunken notch on the installation face of fixing base down, two the notch links together and forms the fixed slot, the equal fixedly connected with buffering body of inner wall of notch, two intraoral buffering bodies and the reduction machine body in close contact with form buffer gear.

4. An improved speed reducer structure according to claim 3, wherein: the buffer body comprises a buffer layer, a plurality of airbag particles are uniformly distributed in the buffer layer, and the airbag particles are inelastic and cannot deform after being shaped.

5. An improved speed reducer structure according to claim 4, wherein: the balloon particles are spherical, and the diameter of the balloon particles is 4 mm; the airbag particles were filled with 86% of inert gas.

6. An improved speed reducer structure according to claim 4, wherein: the buffer body further comprises a water-resistant inner sheath, the water-resistant inner sheath is arranged on the inner wall of the buffer layer, cable paste is filled inside the water-resistant inner sheath, and a metal composite belt is further arranged between the buffer layer and the water-resistant inner sheath.

7. An improved speed reducer structure according to claim 1, wherein: one end of the lower fixing seat is provided with a hinged shaft, and one end of the upper fixing seat is hinged with the lower fixing seat through the hinged shaft; the other end of the lower fixing seat is provided with a buckling block, and the other end of the upper fixing seat is provided with a buckling body which is matched and buckled with the buckling block.

8. An improved speed reducer structure according to claim 7, wherein: the buckle block is provided with a buckle hole for the buckle body to pass through, the two sides of the front end of the buckle body are movably provided with clamping blocks, the two sides of the front end of the buckle body are all sunken and provided with accommodating grooves for accommodating the clamping blocks, the clamping blocks and accommodating grooves are provided with first springs, the two ends of each first spring are respectively connected with the clamping blocks and the inner walls of the accommodating grooves, the lower end face of each clamping block is provided with a first inclined plane, and the two sides of the upper end of the buckle hole are provided with second inclined planes for sliding and abutting against the first inclined planes.

9. An improved speed reducer structure according to claim 1, wherein: the one end outside of going up the fixing base extends and is provided with the upper junction plate, the one end outside of fixing base extends and is provided with down the connecting plate down, the upper junction plate corresponds the setting with lower connecting plate, be provided with the elastic component that resets between upper junction plate and the lower connecting plate, the elastic component that resets includes the elastic rubber section of thick bamboo, the built-in second spring that is equipped with of elastic rubber section of thick bamboo, the one end of elastic rubber section of thick bamboo with the one end of second spring all is connected with the upper junction plate, the other end of elastic rubber section of thick bamboo with the other end of second spring all is connected with the lower connecting plate.

10. An improved speed reducer structure according to claim 1, wherein: the reduction body includes an input shaft for connecting with a shaft of a driving motor and a sun gear for rotating together with the input shaft, and the reduction body further includes a planetary gear rotating around the sun gear centering on the sun gear; an output shaft that is driven to rotate by the planetary gear; a bearing that rotatably supports the output shaft;

a housing that accommodates the sun gear and the planetary gear, and holds the bearing; a first oil seal member and a second oil seal member are disposed in the housing on an output shaft end side of the bearing, and a gap is provided between the first oil seal member and the second oil seal member; the casing has a passage opening the gap toward the radially outer side at a position corresponding to between the two oil seal members.

Technical Field

The invention relates to the technical field of speed reducer devices, in particular to an improved speed reducer structure.

Background

General mechanical transmission, precision instrument precision mechanical transmission, mechanical transmission of a mechanical arm and the like generally carry out power transmission and speed adjustment through a speed reducer, and the traditional speed reducer comprises a circular gear speed reducer, a worm and gear speed reducer, a cycloidal pin gear speed reducer, an NGW planetary gear speed reducer and the like; at present, a mounting flange of a speed reducer is directly and rigidly connected to a fixed seat, and the speed reducer can generate violent vibration under high-speed operation, so that the speed reducer collides with the fixed seat, the interior of the speed reducer is easily damaged or parts are loosened, and the processing of the parts is influenced; in addition, the current speed reducer is single in mounting structure, only has a single mounting plate, is limited in mounting selection and is low in flexibility.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an improved speed reducer structure which is novel in structure and ingenious in design, realizes the installation selection in different directions, improves the use flexibility and convenience, and reduces the limitation of the external installation environment; the speed reducer body has a good damping and buffering effect, noise generated by friction collision between vibration and the inner wall of the fixing groove is reduced, and the structure is novel and reliable.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides an improved speed reducer structure, which comprises a speed reducer body and a fixed seat, wherein the fixed seat comprises an upper fixed seat and a lower fixed seat, the upper fixed seat and the lower fixed seat are mutually buckled and fixed to form a fixed groove for mounting the speed reducer body, the speed reducer body comprises a mounting flange arranged on the peripheral wall of the speed reducer body, and the mounting flange is arranged at one end of the fixed groove and is fixedly connected with the fixed seat; the speed reducer body is sleeved in the fixing groove along the length direction of the fixing groove, and a buffer mechanism used for being in close contact with the speed reducer body to form the speed reducer body is annularly arranged on the inner wall of the fixing groove; the side, away from each other, of each of the upper fixing seat and the lower fixing seat is provided with a U-shaped fixing frame, and a plurality of mounting holes are formed in the U-shaped fixing frames in a penetrating manner; and a buffer plastic pad is arranged on the mounting surface of the outer side wall of the U-shaped fixing frame.

Wherein, the mounting hole runs through the buffering plastic pad.

The upper fixing seat and the lower fixing seat are provided with inwards concave notches on the installation surface, the notches are connected together to form the fixing groove, the inner wall of each notch is fixedly connected with a buffering body, and the buffering bodies in the two notches are in close contact with the speed reducer body to form the buffering mechanism.

The buffer body comprises a buffer layer, a plurality of airbag particles are uniformly distributed in the buffer layer, and the airbag particles are inelastic and cannot deform after being shaped.

Wherein the balloon particles are spherical, and the diameter of the balloon particles is 4 mm; the airbag particles were filled with 86% of inert gas.

The buffer body further comprises a water-resistant inner sheath, the water-resistant inner sheath is arranged on the inner wall of the buffer layer, cable paste is filled in the water-resistant inner sheath, and a metal composite belt is further arranged between the buffer layer and the water-resistant inner sheath.

One end of the upper fixing seat is hinged with the lower fixing seat through the hinge shaft; the other end of the lower fixing seat is provided with a buckling block, and the other end of the upper fixing seat is provided with a buckling body which is matched and buckled with the buckling block.

The buckle is provided with a buckle hole for the buckle body to pass through, the two sides of the front end of the buckle body are movably provided with clamping blocks, the two sides of the front end of the buckle body are all sunken to be provided with grooves for accommodating the clamping blocks, the clamping blocks are provided with first springs between the grooves, the two ends of the first springs are respectively connected with the clamping blocks and the inner walls of the grooves, the lower end face of the clamping blocks is provided with a first inclined plane, and the two sides of the upper end of the buckle hole are provided with second inclined planes for sliding and abutting against the first inclined planes.

The one end outside of going up the fixing base extends and is provided with the upper junction plate, the one end outside of fixing base extends and is provided with down the connecting plate down, the upper junction plate corresponds the setting with lower connecting plate, be provided with the elastic component that resets between upper junction plate and the lower connecting plate, the elastic component that resets includes the elastic rubber section of thick bamboo, the built-in second spring that is equipped with of elastic rubber section of thick bamboo, the one end of elastic rubber section of thick bamboo with the one end of second spring all is connected with the upper junction plate, the other end of elastic rubber section of thick bamboo with the other end of second spring all is connected with lower connecting plate.

The reduction gear body comprises an input shaft connected with a shaft of a driving motor and a sun gear rotating together with the input shaft, and the reduction gear body also comprises a planetary gear which rotates around the sun gear by taking the sun gear as a center; an output shaft that is driven to rotate by the planetary gear; a bearing that rotatably supports the output shaft; a housing that accommodates the sun gear and the planetary gear, and holds the bearing; a first oil seal member and a second oil seal member are disposed in the housing on an output shaft end side of the bearing, and a gap is provided between the first oil seal member and the second oil seal member; the casing has a passage opening the gap toward the radially outer side at a position corresponding to between the two oil seal members.

The invention has the beneficial effects that:

the invention has novel structure and ingenious design, the upper fixing seat and the lower fixing seat are both provided with the U-shaped fixing frames, the U-shaped fixing frames are respectively formed by sequentially connecting three mounting plates, and each mounting plate is provided with a plurality of mounting holes, so that the mounting selection in different directions is realized, the use flexibility and convenience are improved, and the limitation of the external mounting environment is reduced; furthermore, a plurality of mounting holes are formed, so that the U-shaped fixing frame can be conveniently fixed with external equipment and a rack through external screws, and the plurality of mounting holes are convenient for operators to select different suitable positions for mounting; the fixing groove realizes the installation of the speed reducer body; buffer gear can prevent effectively that the reduction gear body from bumping because of vibrations with last fixing base, lower fixing base for the reduction gear body produces better shock attenuation cushioning effect, can also reduce the noise that the reduction gear body produced because of vibrations and fixed slot inner wall friction and collision simultaneously, novel structure, reliable.

Drawings

Fig. 1 is a schematic structural diagram of an improved speed reducer structure according to the present invention.

Fig. 2 is a sectional view of the reduction housing of the present invention.

Fig. 3 is a sectional view of a first oil seal member and a second oil seal member of the invention.

Fig. 4 is a schematic structural view of the present invention after hiding the speed reducer body.

Fig. 5 is an exploded view of the buckle block and the buckle body of the present invention.

Fig. 6 is a schematic structural diagram of a buffer mechanism of the present invention.

Fig. 7 is a schematic view of the upper fixing base and the lower fixing base of the present invention in an open state.

The reference numerals in fig. 1 to 7 include:

1-speed reducer body 2-upper fixed seat 3-lower fixed seat

4-fixed groove 5-buffer gear 6-U-shaped fixing frame

7-mounting hole 8-buffering plastic pad 9-notch

10-buffer 11-buffer 12-balloon particles

13-water-resistant inner sheath 14-metal composite belt 15-articulated shaft

16-fastening block 17-fastening body 18-fastening hole

19-block 20-groove 21-first spring

22-first inclined plane 23-second inclined plane 24-upper connecting plate

25-lower connecting plate 26-reset elastic piece 27-elastic rubber cylinder

28-second spring 29-input shaft 30-sun gear

31-planetary gear 32-output shaft 33-bearing

34-housing 35-first oil seal part 36-second oil seal part

37-gap 38-passage 39-point contact

40-face contact 41-mounting flange.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.

An improved speed reducer structure is shown in fig. 1 to 7, and comprises a speed reducer body 1 and a fixed seat, wherein the fixed seat comprises an upper fixed seat 2 and a lower fixed seat 3, the upper fixed seat 2 and the lower fixed seat 3 are mutually fastened and fixed to form a fixed groove 4 for mounting the speed reducer body 1, the speed reducer body 1 comprises a mounting flange 41 arranged on the peripheral wall of the speed reducer body, and the mounting flange 41 is arranged at one end of the fixed groove 4 and fixedly connected with the fixed seat; the speed reducer body 1 is sleeved in the fixing groove 4 along the length direction of the fixing groove 4, and a buffer mechanism 5 used for being in close contact with the speed reducer body 1 to form the speed reducer body 1 is annularly arranged on the inner wall of the fixing groove 4; a U-shaped fixing frame 6 is arranged on one side, away from each other, of the upper fixing seat 2 and the lower fixing seat 3, and a plurality of mounting holes 7 penetrate through the U-shaped fixing frame 6; and a buffer plastic pad 8 is arranged on the mounting surface of the outer side wall of the U-shaped fixing frame 6.

Specifically, the invention has novel structure and ingenious design, the upper fixing seat 2 and the lower fixing seat 3 are both provided with the U-shaped fixing frame 6, the U-shaped fixing frame 6 is formed by sequentially connecting three mounting plates, and each mounting plate is provided with a plurality of mounting holes 7, so that the mounting selection in different directions of the invention is realized, the use flexibility and convenience are improved, and the limitation of the external mounting environment is reduced; furthermore, a plurality of mounting holes 7 are formed, so that the U-shaped fixing frame 6 can be conveniently fixed with external equipment and a rack through external screws, and the plurality of mounting holes 7 are convenient for an operator to select different suitable positions for mounting; the fixing groove 4 is used for mounting the speed reducer body 1, wherein the upper fixing seat 2 and the lower fixing seat 3 are both provided with screw holes used for being matched with fixing holes of a mounting flange 41 of the speed reducer body 1; buffer gear 5 can prevent effectively that speed reducer body 1 and last fixing base 2, lower fixing base 3 from bumping because of vibrations for speed reducer body 1 produces better shock attenuation cushioning effect, can also reduce the noise that speed reducer body 1 produced because of vibrations and 4 inner wall friction collisions of fixed slot simultaneously, novel structure, reliable.

In the improved speed reducer structure of this embodiment, the mounting hole 7 penetrates through the buffer plastic pad 8. Specifically, the buffering plastic pad 8 can play a role in shock absorption and buffering, the mounting hole 7 penetrates through the buffering plastic pad 8, the U-shaped fixing frame 6 is convenient to mount, the buffering plastic pad 8 can be used for playing a role in shock absorption and buffering when the U-shaped fixing frame 6 is fixed with an external rack and device, and the shock absorption performance of the invention is further improved.

The speed reducer structure of improvement of this embodiment, go up fixing base 2 with all be provided with inside sunken notch 9 on the installation face of fixing base 3 down, two notch 9 links together and forms fixed slot 4, the equal fixedly connected with buffering body 10 of the inner wall of notch 9, the buffering body 10 in two notches 9 and the formation of the 1 in close contact with of speed reducer body buffer gear 5. Specifically, above-mentioned setting makes things convenient for the installation of speed reducer body 1 and the cooperation of going up fixing base 2 and fixing base 3 down, and buffer gear 5 can prevent effectively that speed reducer body 1 and last fixing base 2, lower fixing base 3 from bumping because of vibrations for speed reducer body 1 produces better shock attenuation cushioning effect, can also reduce speed reducer body 1 simultaneously because of vibrations and the 4 inner wall friction collisions noise that produce of fixed slot, novel structure, reliable.

In the improved speed reducer structure of this embodiment, the buffer body 10 includes the buffer layer 11, a plurality of airbag particles 12 are uniformly distributed in the buffer layer 11, and the airbag particles 12 have no elasticity and do not deform after being shaped. Specifically, since the air bag particles 12 are inelastic, when an impact is applied, the air bag particles 12 will not expand, and the pressure of the air bag particles 12 will increase rapidly, so as to effectively resist the impact of an external force, reduce the vibration, and improve the stability.

In the improved speed reducer structure of the present embodiment, the air bag particles 12 are spherical, and the diameter of the air bag particles 12 is 4 mm; the airbag particles 12 were filled with 86% of an inert gas. Specifically, the spherical airbag particles 12 have stable structure and smooth surface, and can better collide with and extrude the adjacent airbag particles 12, thereby achieving better buffering effect; in addition, when the buffer layer 11 is impacted, that is, the airbag particles 12 are impacted, the gas in the airbag particles 12 can be dispersed, so that the buffer mechanism 5 is uniformly stressed, and the vibration generated when the speed reducer body 1 works is weakened.

In the improved speed reducer structure of this embodiment, the buffer 10 further includes a water-resistant inner sheath 13, the water-resistant inner sheath 13 is installed on the inner wall of the buffer layer 11, cable paste is filled inside the water-resistant inner sheath 13, and a metal composite belt 14 is further disposed between the buffer layer 11 and the water-resistant inner sheath 13. Specifically, the inside of water-resistant inner sheath 13 is filled with cable paste, prevents that buffer layer 11 from being permeated by water to influence life, consequently, through the water-resistant inner sheath 13 of the inboard setting at metal composite band 14, can prevent that the inside of buffer layer 11 from being permeated by water, thereby make the inside probability of being permeated by water of buffer layer 11 obtain reducing, the rethread is full of cable paste with the inside packing of water-resistant inner sheath 13, thereby makes the infiltration that prevents moisture obtain further enhancement.

In the improved speed reducer structure of this embodiment, one end of the lower fixing seat 3 is provided with a hinge shaft 15, and one end of the upper fixing seat 2 is hinged to the lower fixing seat 3 through the hinge shaft 15; the other end of lower fixing base 3 is provided with detains piece 16, the other end of going up fixing base 2 is provided with the knot body 17 that is used for cooperating the lock joint with detaining piece 16. Specifically, realize through articulated shaft 15 that the one end of going up fixing base 2 is articulated with the one end of fixing base 3 down, conveniently go up opening and closing of fixing base 2 and fixing base 3 down, and utilize buckle 17 and detain 16 mutual lock joints and realize closing and locking of fixing base 2 and fixing base 3 down, convenient to use need not use external tools such as screw, practices thrift accessories.

The speed reducer structure of improvement stated in this embodiment, detain piece 16 and be provided with the confession detain hole 18 that the body 17 passed, the both sides activity of detaining the body 17 front end is provided with fixture block 19, the both sides of detaining the body 17 front end are all sunken to be provided with and are used for holding and establish fixture block 19 hold the groove 20, fixture block 19 with hold and be provided with first spring 21 between the groove 20, first spring 21's both ends respectively with fixture block 19 with hold the inner wall connection of groove 20, fixture block 19's lower terminal surface is provided with first inclined plane 22, the upper end both sides of detaining hole 18 are provided with the second inclined plane 23 that is used for sliding the butt with first inclined plane 22. Specifically, when the buckle body 17 is buckled with the buckle block 16, an operator presses the fixture block 19, the first spring 21 is compressed, the fixture block 19 retracts into the accommodating groove 20, the buckle body 17 conveniently penetrates through the buckle hole 18, the fixture block 19 is ensured to stably retract into the accommodating groove 20 under the sliding abutting action of the first inclined surface 22 and the second inclined surface 23, after the fixture block 19 penetrates through the buckle hole 18, the fixture block 19 extends downward under the elastic action of the first spring 21, the fixture block 19 is ejected out of the accommodating groove 20, the upper end surface of the fixture block 19 abuts against the lower end surface of the buckle block 16, the buckle body 17 is locked with the buckle block 16, and the upper fixing seat 2 is fixed and locked with the lower fixing seat 3; when the upper fixing seat 2 and the lower fixing seat 3 need to be opened, an operator extrudes the clamping block 19 to enable the clamping block 19 to be retracted into the accommodating groove 20, and then the upper fixing seat 2 and the lower fixing seat 3 are opened to enable the buckle body 17 to exit the buckle hole 18, so that the upper fixing seat 2 and the lower fixing seat 3 can be opened conveniently.

This embodiment a speed reducer structure of improvement, the one end outside of going up fixing base 2 is extended and is provided with upper junction plate 24, the one end outside of fixing base 3 is extended and is provided with down connecting plate 25 down, upper junction plate 24 corresponds the setting with lower connecting plate 25, be provided with elastic component 26 that resets between upper junction plate 24 and the lower connecting plate 25, elastic component 26 that resets includes elastic rubber tube 27, the built-in second spring 28 that is equipped with of elastic rubber tube 27, elastic rubber tube 27's one end with the one end of second spring 28 all is connected with upper junction plate 24, elastic rubber tube 27's the other end with the other end of second spring 28 all is connected with lower connecting plate 25. Specifically, the above arrangement realizes the elastic restoring force of the reset elastic member 26, so that the upper fixing seat 2 and the lower fixing seat 3 are better and tightly attached to each other, wherein the elastic rubber tube 27 protects the second spring 28, reduces the pollution and corrosion of the second spring 28 caused by the outside, and prolongs the service life.

In the improved speed reducer structure of this embodiment, the speed reducer body 1 includes an input shaft 29 for connecting with a shaft of a driving motor, and a sun gear 30 for rotating together with the input shaft 29, and the speed reducer body 1 further includes a planetary gear 31 that rotates around the sun gear 30 with the sun gear 30 as a center; an output shaft 32 that is driven to rotate by the planetary gear 31; a bearing 33 rotatably supporting the output shaft 32; a housing 34 that accommodates the sun gear 30 and the planetary gears 31 and holds the bearings 33; a first oil seal member 35 and a second oil seal member 36 are disposed in the housing 34 on the output shaft 32 end side of the bearing 33, and a gap 37 is provided between the first oil seal member 35 and the second oil seal member 36; a passage 38 that opens the gap 37 toward the radially outer side is provided in a position of the housing 34 corresponding to between the two oil seal members; the mounting flange 41 is fixedly sleeved on the peripheral wall of the casing 34.

Further, the first oil seal member 35 and the second oil seal member 36 are disposed symmetrically with respect to a plane orthogonal to the axis of the output shaft 32 as a reference plane. The surface contact portion 40 of the first oil seal member 35 is located on the output shaft 32 end side of the point contact portion 39, and the point contact portion 39 of the second oil seal member 36 is located on the output shaft 32 end side of the surface contact portion 40. The first oil seal member 35 and the second oil seal member 36 each include a plurality of point contact portions 39 arranged at intervals in the axial direction. The surface of the output shaft 32 is a surface treated with electroless nickel. The housing 34 is composed of a bearing holder for holding the bearing 33 and a housing main body, and the inner surface of the bearing holder is anodized. The housing 34 is composed of a bearing holder for holding the bearing 33 and a housing main body, and a screw for fixing the bearing holder to the housing main body and a screw for fixing the speed reducer to the equipment are not overlapped in position in the circumferential direction of the speed reducer.

In the present invention, by providing the first oil seal member 35 and the second oil seal member 36, the sealing property can be improved; meanwhile, an opening is formed between the first oil seal part 35 and the second oil seal part 36, so that dye or lubricant passing through any one of the oil seal parts can flow out radially outwards under the action of rotating centrifugal force, the dye is prevented from entering the inside of the speed reducer, and the service life of the speed reducer body 1 is ensured.

In the present invention, the first oil seal member 35 and the second oil seal member 36 may have the same configuration, and the first oil seal member 35 and the second oil seal member 36 may be arranged symmetrically with respect to a plane orthogonal to the axis of the output shaft 32 as a reference plane. Therefore, the manufacturing and installation operations can be simplified, and the cost can be reduced; and simultaneously, a better sealing effect is obtained. However, the present invention is not limited thereto, and for example, the first oil seal member 35 and the second oil seal member 36 may be configured differently as needed.

In the present invention, the first oil seal member 35 and the second oil seal member 36 each include a point contact portion 39 and a surface contact portion 40. Among them, the surface contact portion 40 has a better sealing effect than the point contact portion 39, but also causes severe abrasion due to its poor flexibility. While the point contact 39 has a poorer sealing effect than the surface contact 40, but the degree of wear is relatively small due to its good flexibility. The oil seal member of the present invention includes both the point contact portion 39 and the surface contact portion 40, and not only can obtain a good sealing effect, but also can reduce the degree of wear to improve the service life of the oil seal member.

In the present invention, the first oil seal member 35 and the second oil seal member 36 may be disposed in opposite directions. The surface contact portion 40 of the first oil seal member 35 is located on the output shaft 32 end side of the point contact portion 39, and the point contact portion 39 of the second oil seal member 36 is located on the output shaft 32 end side of the surface contact portion 40. Thus, the two oil seal components are arranged in opposite directions, so that the sealing effect is further improved; and the degree of wear can be reduced to improve the service life of the oil seal component.

In the present invention, each of the first oil seal member 35 and the second oil seal member 36 may include a plurality of point contact portions 39 arranged at intervals in the axial direction. By providing the plurality of point contact portions 39, not only the sealing effect can be improved, but also the degree of wear can be further reduced, and the service life of the oil seal member can be improved.

In the present invention, the surface of the output shaft 32 is a surface having electroless nickel treatment. Thus, by this electroless nickel treatment, the smoothness of the output shaft 32 can be improved, the friction between the output shaft 32 and the first and second oil seal members 35 and 36 can be reduced, and the degree of wear of the oil seal members can be reduced, providing a service life of the oil seal members.

In the present invention, the housing 34 may be composed of a bearing holder for holding the bearing 33 and a housing main body, and the inner surface of the bearing holder for holding the bearing 33 may be an anodized surface. Thus, the anodic oxidation treatment can improve corrosion resistance and prolong the service life of the component.

In the present invention, the housing 34 may be composed of two parts, i.e., a bearing holder for holding the bearing 33 and a housing main body, and the screw for fixing the bearing holder for holding the bearing 33 to the housing main body and the screw for fixing the reduction gear to the equipment may be positioned so as not to overlap each other in the circumferential direction of the reduction gear. This makes it possible to reduce the axial dimension and to reduce the size of the speed reducer.

According to the improved speed reducer structure, the outer wall of the casing of the speed reducer body is coated with the continuous cool fabric, the casing of the speed reducer body is basically a metal casing, so that the casing of the speed reducer body is hot after long-term work or direct sunlight, and is not convenient for operators to carry, assemble or disassemble, and after the outer wall of the speed reducer body is coated with the continuous cool fabric, the heat dissipation effect can be improved, the operators can operate the speed reducer body conveniently, the situation that the work is affected by scalding the hand of the casing of the speed reducer body is avoided, and the work safety and convenience are improved; the continuous cool feeling fabric comprises a fabric base layer woven by cool feeling terylene and a water-based polyurethane coating coated on the surface of the fabric base layer, wherein the cool feeling terylene comprises the following raw materials in parts by weight:

the cool polyester fiber doped with the mica powder is adopted in the invention, and has the characteristics of firmness, durability, good elasticity, difficult deformation, corrosion resistance, insulation, stiffness, smoothness and the like, and the moisture conductivity of the cool polyester fiber is relatively less influenced by the mica powder due to the low moisture absorption performance of the cool polyester fiber. The invention solves the problem of poor moisture conductivity of the polyester fiber, does not pay attention to the property of the fiber, but pay attention to the structure of the fabric. The moisture conductivity of the fabric is influenced by the moisture absorption of single fibers and the moisture transmission efficiency among the fibers, and the problem is not noticed yet. According to the invention, the surface of the fabric is coated with the water-based polyurethane coating, so that the water-based polyurethane can enable single polyester fibers to form efficient physical connection, and moisture can be diffused through the polyurethane coating, thereby improving the moisture diffusion efficiency among the fibers.

The coating treatment of the waterborne polyurethane coating is different from the hydrophilic finishing of common polyester fibers, the polyester has poor hygroscopicity but not poor moisture conductivity, the hydrophilic finishing of the polyester refers to that the hydrophilic finishing agent is bonded with the surface of the polyester so that the surface has hydrophilic groups, the dyne value of the surface of the polyester is changed so that the polyester is easily soaked by water, and then the polyester is diffused and evaporated in the polyester, so that the moisture absorption and removal performance is improved. The waterborne polyurethane coating of the invention also has the effect of polyester surface modification, and can improve the moisture absorption rate of polyester fibers by the same mechanism, but the improvement degree is not as good as that of the common organosilicon hydrophilic finishing agent from the aspect of the mechanism. The more important function of the waterborne polyurethane coating is to form physical bridges among single fibers, so that moisture can span among the single fibers through the polyurethane coating, thereby greatly improving the moisture diffusion efficiency, namely the moisture conductivity.

Wherein the mica powder has a sheet diameter of 8-12 μm and a sheet thickness of 0.5-1.5 μm.

Wherein the antioxidant consists of an antioxidant 1010 and an antioxidant 168 according to the weight ratio of 1: 1.

Wherein the ultraviolet absorbent is one or more of salicylate absorbent, benzotriazole absorbent and hindered amine absorbent.

Wherein, the lubricant is one or more of zinc stearate, calcium stearate and talcum powder.

The preparation method of the cool polyester comprises the following steps: mixing the raw materials for forming the cool polyester, feeding the mixture into a screw extruder for melting, then spraying the mixture through spinneret orifices on a spinneret plate, cooling the mixture by air, and then performing an elasticizing process to obtain the cool polyester.

The manufacturing method of the continuous cool feeling fabric comprises the following steps:

(1) adding 100 parts by weight of polytetramethylene glycol, 40-50 parts by weight of toluene diisocyanate and 0.1-0.5 part by weight of organic tin catalyst into a round-bottom flask, heating to 80-120 ℃, and keeping the reaction for 3-4 hours to prepare a polyurethane prepolymer;

(2) adding 40-60 parts by weight of organic solvent and 10-20 parts by weight of hydrophilic chain extender into the polyurethane prepolymer, reacting at the temperature of 50-60 ℃ for 2-3h, and then adding 100 parts by weight of water and 1-2 parts by weight of silane coupling agent to prepare the waterborne polyurethane coating;

(3) weaving the cool terylene into a fabric base layer, soaking the fabric base layer into the waterborne polyurethane coating according to the bath ratio of 1:10-12 for 30-60min, taking out the cool terylene, and drying in an oven at 60-80 ℃ to obtain the continuous cool fabric.

The properties of the aqueous polyurethane coating are varied, and not all aqueous polyurethane coatings can meet the requirements of the present invention. Therefore, the invention provides the waterborne polyurethane coating and a method for coating the waterborne polyurethane coating on a fabric base layer, namely a manufacturing method of the continuous cool fabric. The water-based polyurethane coating prepared by the method can improve the hydrophilicity of the fiber surface, fill the gaps among the fibers and effectively improve the moisture transmission efficiency among the fibers, thereby obviously improving the moisture absorption of the polyester fibers and solving the problem of poor moisture absorption of cool polyester.

Wherein the organic tin catalyst is dibutyltin dilaurate.

Wherein the hydrophilic chain extender is composed of 1, 4-butanediol-2-sodium sulfonate and trimethylolpropane polyethylene glycol monomethyl ether according to the weight ratio of 1-2: 1.

Wherein the organic solvent is one of ethyl acetate, acetone N-methyl pyrrolidone and dimethylformamide, and the silane coupling agent is KH 550.

The cool polyester fiber doped with the mica powder is adopted in the invention, and has the characteristics of firmness, durability, good elasticity, difficult deformation, corrosion resistance, insulation, stiffness, smoothness and the like, and the moisture conductivity of the cool polyester fiber is relatively less influenced by the mica powder due to the low moisture absorption performance of the cool polyester fiber. The invention solves the problem of poor moisture conductivity of the polyester fiber, does not pay attention to the property of the fiber, but pay attention to the structure of the fabric. The moisture conductivity of the fabric is influenced by the moisture absorption of single fibers and the moisture transmission efficiency among the fibers, and the problem is not noticed yet. According to the invention, the surface of the fabric is coated with the water-based polyurethane coating, so that the water-based polyurethane can enable single polyester fibers to form efficient physical connection, and moisture can be diffused through the polyurethane coating, thereby improving the moisture diffusion efficiency among the fibers.

Wherein, the embodiment of the continuous cool feeling fabric comprises the following steps: