Speed reducer for injection molding machine

Abstract

The utility model relates to the technical field of speed reducers, in particular to a speed reducer for an injection molding machine, which comprises a shell, an oil storage tank and a cooling component, the top of the shell is connected with a first end cover through a bolt, the bottom of the shell is connected with a second end cover through a bolt, and the surface of one side of the shell is connected with the oil storage tank through a bolt. A cooling assembly is fixedly arranged on the surface of the other side of the shell, and a speed reduction assembly is arranged in the shell. A hollow groove is formed in the inner side of the shell, a spiral flow deflector is connected into the hollow groove in a welded mode, and an annular heat conduction plate is connected to the position, located on the outer side of the spiral flow deflector, in the hollow groove in a welded mode. The auxiliary heat dissipation cooling mechanism is additionally arranged, heat conduction and heat exchange modes are utilized, auxiliary heat dissipation treatment is conducted on the speed reducer, the stability of long-time continuous work is improved, and therefore the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a reducer for an injection molding machine. Background Art

[0002] A reducer is an independent component consisting of a gear transmission, a worm transmission, or a gear-worm transmission enclosed in a rigid housing. It is a reduction transmission device between the prime mover and the working machine. It mainly plays the role of matching speed and transmitting torque between the prime mover and the working machine or actuator. It is widely used in modern machinery. One of the core components of an injection molding machine is a reducer, which converts the high-speed, low-torque output of a motor into a low-speed, high-torque output to meet the drive requirements of the injection molding machine.

[0003] At present, when using a reducer, there is a lack of auxiliary heat dissipation and cooling mechanism. Usually, the injection molding machine needs to use the reducer for a long time during operation, resulting in a large amount of heat generated by friction between the internal planetary gears. Moreover, the working environment of the injection molding machine itself and the material temperature not only affect the stability of the gear transmission, but also easily accelerate the service life of the reducer. Therefore, a reducer for an injection molding machine is proposed to increase the auxiliary heat dissipation and cooling mechanism, and use heat conduction and heat exchange to perform auxiliary heat dissipation treatment on the reducer, thereby improving the stability of long-term continuous operation and thus improving the use effect. Utility Model Content

[0004] In response to the problems in the prior art, the utility model provides a reducer for an injection molding machine, so as to add an auxiliary heat dissipation and cooling mechanism, and utilize heat conduction and heat exchange to perform auxiliary heat dissipation treatment on the reducer, thereby improving the use effect.

[0005] The technical solution adopted by the utility model to solve the technical problem is a reducer for an injection molding machine, comprising a housing, an oil storage tank and a cooling assembly, wherein the top of the housing is connected to a first end cover by bolts, the bottom of the housing is connected to a second end cover by bolts, the surface of one side of the housing is connected to the oil storage tank by bolts, the surface of the other side of the housing is fixedly provided with a cooling assembly, and the reduction assembly is provided inside the housing;

[0006] A hollow groove is provided on the inner side of the shell, a spiral guide plate is connected to the hollow groove by welding, and an annular heat conducting plate is connected to the outer side of the spiral guide plate in the hollow groove by welding.

[0007] By adopting the above technical solution, the heat generated by long-term operation in the reducer can be brought out by means of heat conduction and heat exchange, reducing the impact on structural parts such as gears, thereby improving the stability of use and helping to extend the service life.

[0008] Specifically, the cooling component includes a heat dissipation trough, in which shunt heat pipes are laid at equal intervals, and the outer side of the heat dissipation trough is connected to a heat dissipation fin by welding, and one end of the heat dissipation fin passes through the heat dissipation trough and is located on one side of the shunt heat pipe, and the surface of the heat dissipation trough is connected to the fan by bolts, and the air outlet end of the fan is located in the heat dissipation trough.

[0009] By adopting the above technical solution, an auxiliary circulation cooling mechanism can be added to perform auxiliary cooling treatment on the heat transfer oil, thereby improving the continuity of circulation use.

[0010] Specifically, an oil delivery pipe is provided at the bottom of the oil storage tank, and the discharge end of the oil delivery pipe is connected to the hollow tank.

[0011] By adopting the above technical solution, it is easy to pump the heat transfer oil into the hollow tank for heat conduction, heat dissipation and cooling treatment.

[0012] Specifically, a diversion groove is provided on the top of the heat dissipation groove, a confluence groove is provided on the bottom of the heat dissipation groove, and a diversion heat conduction pipe connects the diversion groove and the confluence groove. A return pipe is provided on the surface of the heat dissipation groove, one end of the return pipe is connected to the confluence groove, and the other end of the return pipe is connected to the oil storage tank.

[0013] By adopting the above technical solution, the heat transfer oil is diverted and refluxed, thereby achieving the effect of circulating cooling.

[0014] Specifically, the reduction assembly includes a planetary carrier, a planetary gear is provided on the top of the planetary carrier, a ring gear is fixedly installed on the periphery of the planetary gear in the housing by bolts, and the planetary gear is meshed with the ring gear, and the planetary gears are meshed with the sun gear.

[0015] By adopting the above technical solution, the gear set can be used to reduce the rotation speed of the motor while increasing the output torque.

[0016] Specifically, the first end cover is provided with an input shaft, and one end of the input shaft passes through the first end cover and is fixedly connected to the sun gear. The second end cover is provided with an output shaft, and one end of the output shaft passes through the second end cover and is fixedly connected to the planet carrier.

[0017] By adopting the above technical solution, it is easy to connect the drive motor for input and to connect the device for output.

[0018] Beneficial effects of the utility model:

[0019] (1) The reducer for an injection molding machine described in the utility model can add an auxiliary heat dissipation and cooling mechanism through the provided shell, hollow groove, spiral guide plate and annular heat conduction plate. The heat generated by long-term operation in the reducer is brought out by the circulation of heat transfer oil, which plays an auxiliary heat dissipation and cooling effect, thereby improving the working stability between gears. At the same time, it is also beneficial to extend the service life of the reducer and reduce the number and frequency of maintenance.

[0020] (2) The reducer for an injection molding machine described in the utility model can increase a circulating cooling mechanism by providing a heat dissipation groove, a shunt heat pipe, a heat dissipation fin, and a fan, and improves the continuity of the heat dissipation and cooling mechanism by utilizing heat conduction and heat exchange. The structure is simple and easy to operate, and the use is more flexible and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell of the present utility model;

[0024] Figure 3 This is a schematic cross-sectional view of the cooling component of the present invention;

[0025] Figure 4 This is a schematic cross-sectional view of the utility model;

[0026] In the figure: 1. Shell; 101. Hollow groove; 102. Spiral guide vane; 103. Annular heat conduction plate; 2. First end cover; 3. Second end cover; 4. Oil storage tank; 401. Oil pipeline; 5. Cooling assembly; 501. Heat dissipation groove; 502. Diverter groove; 503. Diverter heat conduction pipe; 504. Heat dissipation fin; 505. Converging groove; 506. Return pipe; 6. Fan; 7. Speed ​​reduction assembly; 701. Planet carrier; 702. Planetary gear; 703. Ring gear; 704. Sun gear; 8. Input shaft; 9. Output shaft. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] In order to facilitate the addition of auxiliary heat dissipation and cooling mechanisms, the reducer is subjected to auxiliary heat dissipation treatment by means of heat conduction and heat exchange, thereby improving the use effect. Figure 1-3As shown, the reducer for an injection molding machine described in the utility model includes a housing 1, an oil storage tank 4 and a cooling component 5. The top of the housing 1 is connected to a first end cover 2 by bolts, and the bottom of the housing 1 is connected to a second end cover 3 by bolts. The surface of one side of the housing 1 is connected to the oil storage tank 4 by bolts, and the surface of the other side of the housing 1 is fixedly provided with a cooling component 5. A speed reduction component 7 is provided inside the housing 1;

[0029] A hollow groove 101 is formed inside the housing 1 , a spiral guide vane 102 is connected to the hollow groove 101 by welding, and an annular heat conducting plate 103 is connected to the outside of the spiral guide vane 102 in the hollow groove 101 by welding.

[0030] When in use, the heat generated by long-term operation in the reducer can be brought out by heat conduction and heat exchange through the shell 1, the hollow groove 101, the spiral guide plate 102 and the annular heat conduction plate 103, reducing the impact on structural parts such as gears, thereby improving the stability of use and helping to extend the service life.

[0031] In order to improve the stability of continuous operation, for example, Figure 2 、 Figure 3 As shown, the present invention also includes that the cooling component 5 includes a heat dissipation groove 501, and the heat dissipation pipe 503 is evenly laid in the heat dissipation groove 501. The outer side of the heat dissipation groove 501 is connected with a heat dissipation fin 504 by welding, and one end of the heat dissipation fin 504 passes through the heat dissipation groove 501 and is located on one side of the heat dissipation pipe 503. The surface of the heat dissipation groove 501 is connected to the fan 6 by bolts, and the air outlet end of the fan 6 is located in the heat dissipation groove 501.

[0032] When in use, an auxiliary circulation cooling mechanism can be added through the heat dissipation groove 501, the diverter heat pipe 503, the heat dissipation fins 504, and the fan 6 to perform auxiliary cooling treatment on the heat transfer oil, thereby improving the continuity of the circulation use.

[0033] For example, Figure 2 As shown, the present invention further includes that an oil delivery pipe 401 is provided at the bottom of the oil storage tank 4 , and the discharge end of the oil delivery pipe 401 is connected to the hollow groove 101 .

[0034] During use, the heat transfer oil is pumped into the hollow tank 101 through the oil pipe 401 for heat conduction, heat dissipation and cooling. The oil storage tank 4 includes an oil pump, and the discharge end of the oil pump is connected to the oil pipe 401.

[0035] For example, Figure 3As shown, the present invention also includes that a diverter groove 502 is provided at the top of the heat dissipation groove 501, a converging groove 505 is provided at the bottom of the heat dissipation groove 501, and a diverter heat conduction pipe 503 connects the diverter groove 502 and the converging groove 505, and a return pipe 506 is provided on the surface of the heat dissipation groove 501, one end of the return pipe 506 is connected to the converging groove 505, and the other end of the return pipe 506 is connected to the oil storage tank 4.

[0036] When in use, the heat transfer oil is diverted and refluxed through the diverter groove 502, the converging groove 505 and the return pipe 506, thereby achieving the effect of circulating cooling.

[0037] For example, Figure 4 As shown, the present invention also includes that the reduction assembly 7 includes a planetary carrier 701, a planetary gear 702 is provided on the top of the planetary carrier 701, a ring gear 703 is fixedly installed on the periphery of the planetary gear 702 in the housing 2 by bolts, and the planetary gear 702 is meshedly connected to the ring gear 703, and the planetary gears 702 are meshedly connected to the sun gear 704.

[0038] When in use, the planet carrier 701 , the planetary gears 702 , the ring gear 703 and the sun gear 704 can be used to reduce the speed of the motor while increasing the output torque.

[0039] For example, Figure 4 As shown, the present invention also includes that the first end cover 2 is provided with an input shaft 8, and one end of the input shaft 8 passes through the first end cover 2 and is fixedly connected to the sun gear 704, and the second end cover 3 is provided with an output shaft 9, and one end of the output shaft 9 passes through the second end cover 3 and is fixedly connected to the planetary carrier 701.

[0040] When in use, the input shaft 8 is used to connect the drive motor for input, and the output shaft 9 is used to connect the device for output.

[0041] When the present invention is in use, the operator first fixes the input shaft 8 and the output shaft 9 to the motor and the injection molding machine equipment respectively. During actual long-term use, the oil pump in the oil storage tank 4 can be manually opened to pump heat-conducting oil into the hollow groove 101 of the shell 1 through the oil pipe 401. The annular heat-conducting plate 103 and the heat-conducting oil are used to absorb the heat generated by the friction between the ring gear 703 and the planetary gear 702. The uniformity of heat exchange is improved by the spiral guide vane 102. The heat-conducting oil is then introduced into the diverter groove 502 of the heat dissipation groove 501. The diverter heat-conducting pipe 503 and the heat dissipation fins 504 are used to dissipate the absorbed heat outward. At the same time, the fan 6 can be manually opened to supply air to further accelerate the heat dissipation effect of the heat-conducting oil. The overall structure is simple and easy to operate, and the use is more flexible and stable. It is also beneficial to reduce the frequency and number of maintenance and extend the service life of the reducer.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A reducer for an injection molding machine, characterized in that: The invention comprises a housing (1), an oil storage tank (4) and a cooling assembly (5); the top of the housing (1) is connected to a first end cover (2) by bolts, the bottom of the housing (1) is connected to a second end cover (3) by bolts, the surface of one side of the housing (1) is connected to the oil storage tank (4) by bolts, the surface of the other side of the housing (1) is fixedly provided with a cooling assembly (5), and a speed reduction assembly (7) is provided in the housing (1); A hollow groove (101) is provided on the inner side of the shell (1), a spiral guide plate (102) is connected to the hollow groove (101) by welding, and an annular heat conduction plate (103) is connected to the outer side of the spiral guide plate (102) in the hollow groove (101) by welding.

2. A speed reducer for an injection molding machine according to claim 1, characterized in that: The cooling component (5) comprises a heat dissipation slot (501), wherein shunt heat conduction pipes (503) are equidistantly arranged in the heat dissipation slot (501), a heat dissipation fin (504) is connected to the outside of the heat dissipation slot (501) by welding, and one end of the heat dissipation fin (504) passes through the heat dissipation slot (501) and is located on one side of the shunt heat conduction pipe (503), and a fan (6) is connected to the surface of the heat dissipation slot (501) by bolts, and an air outlet end of the fan (6) is located in the heat dissipation slot (501).

3. The speed reducer for an injection molding machine according to claim 1, characterized in that: An oil delivery pipe (401) is provided at the bottom of the oil storage tank (4), and the discharge end of the oil delivery pipe (401) is connected to the hollow groove (101).

4. The speed reducer for an injection molding machine according to claim 2, wherein: A diversion groove (502) is provided at the top of the heat dissipation groove (501), a converging groove (505) is provided at the bottom of the heat dissipation groove (501), and a diversion heat conduction pipe (503) is connected to the diversion groove (502) and the converging groove (505). A return pipe (506) is provided on the surface of the heat dissipation groove (501), one end of the return pipe (506) is connected to the converging groove (505), and the other end of the return pipe (506) is connected to the oil storage tank (4).

5. The speed reducer for an injection molding machine according to claim 1, characterized in that: The reduction assembly (7) includes a planetary carrier (701), a planetary gear (702) is provided on the top of the planetary carrier (701), a ring gear (703) is fixedly installed on the periphery of the planetary gear (702) in the housing (1) by bolts, and the planetary gear (702) is meshedly connected to the ring gear (703), and the planetary gears (702) are meshedly connected to the sun gear (704).

6. The speed reducer for an injection molding machine according to claim 5, characterized in that: The first end cover (2) is provided with an input shaft (8), and one end of the input shaft (8) passes through the first end cover (2) and is fixedly connected to the sun gear (704); the second end cover (3) is provided with an output shaft (9), and one end of the output shaft (9) passes through the second end cover (3) and is fixedly connected to the planet carrier (701).

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