CN213541258U

CN213541258U - Gearbox system

Info

Publication number: CN213541258U
Application number: CN202022161723.3U
Authority: CN
Inventors: 孙强; 梁伟锋; 杨海明
Original assignee: National Energy Group Guoyuan Power Co Ltd
Current assignee: National Energy Group Guoyuan Power Co Ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-06-25
Anticipated expiration: 2030-09-27

Abstract

The application discloses gearbox system belongs to colliery electromechanical technical field. This gearbox system includes gearbox body, internal cooling device and outer cooling device, internal cooling device set up in within the gearbox body, outer cooling device set up in outside the gearbox body, outer cooling device includes cooling tube, play oil pipe and returns oil pipe, it has first end and second end to go out oil pipe, first end with the oil-out of gearbox body is linked together, it has third end and fourth end to return oil pipe, the third end with the oil return opening of gearbox body is linked together, the fourth end passes through the cooling tube with the second end is linked together. The gearbox system can solve the problem that the cooling effect of the existing scheme on gearbox gear oil is poor.

Description

Gearbox system

Technical Field

The application belongs to the technical field of coal mine electromechanical, and particularly relates to a gearbox system.

Background

Gearboxes play a very important role in the field of automotive and engineering machinery, which can be varied in rotational speed by changing the gear ratio. Because the friction between the gears in the gearbox can lead to the inside of the gearbox accumulating a large amount of heat, the temperature of the gear oil is further increased, and if the heat in the gear oil can not be dissipated, the performance of the gearbox is greatly influenced.

In order to reduce the influence of heat in the gear oil on the performance of the gearbox, the conventional gearbox cools the gear oil of the gearbox by additionally arranging a cooler inside the gearbox, however, the temperature of the gear oil of the gearbox is difficult to effectively reduce due to the fact that a large amount of heat can not be transferred to the external environment in the mode, so that the gearbox still runs under a high-temperature state, the failure rate of the gearbox is increased, and the service life of the gearbox is further influenced. Therefore, the existing scheme has poor cooling effect on the gearbox gear oil.

SUMMERY OF THE UTILITY MODEL

The purpose of the embodiment of the application is to provide a gearbox system, can solve the relatively poor problem of current scheme to the cooling effect of gearbox gear oil.

In order to solve the technical problem, the present application is implemented as follows:

the embodiment of the application provides a gearbox system, this gearbox system includes gearbox body, interior cooling device and outer cooling device, interior cooling device set up in within the gearbox body, outer cooling device set up in outside the gearbox body, outer cooling device includes cooling tube, goes out oil pipe and returns oil pipe, it has first end and second end to go out oil pipe, first end with the oil-out of gearbox body is linked together, it has third end and fourth end to return oil pipe, the third end with the oil return opening of gearbox body is linked together, the fourth end is passed through the cooling tube with the second end is linked together.

In this application embodiment, this internal gear oil of gearbox gets into out oil pipe through the first end with the oil-out intercommunication after the cooling device cooling, then the second end through with the cooling tube intercommunication gets into the cooling tube, the gear oil that gets into the cooling tube passes through the pipe wall transmission of cooling tube with the heat that self was taken to the external environment in to this reduces the temperature of gear oil self, then the gear oil gets into back oil pipe through the fourth end with the cooling tube connection, and finally, the gear oil returns to the gearbox originally internally through the oil return opening with the third end intercommunication of returning oil pipe. After the dual cooling of interior cooling device and outer cooling device for go in a large amount of heats in the gear oil were transmitted the external environment originally, transmit back this internal gear oil of gearbox for the gear oil that the temperature is lower at last, the gear oil that the temperature is low more is favorable to the operation of gearbox body, consequently, can improve the relatively poor problem of cooling effect of current scheme to gearbox gear oil through above-mentioned mode.

Drawings

Fig. 1 is a schematic structural diagram of a transmission system disclosed in an embodiment of the present application.

Description of reference numerals:

100-a transmission body, 110-an oil outlet and 120-an oil return port;

200-external cooling device, 210-cooling pipe, 211-first pipe section, 212-second pipe section, 213-third pipe section, 220-oil outlet pipe, 221-first end, 222-second end, 230-oil return pipe, 231-third end, 240-box, 241-water outlet pipe and 242-water inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The transmission system provided by the embodiment of the present application is described in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 1, the present embodiment discloses a transmission system including a transmission body 100, an internal cooling device disposed inside the transmission body 100, and an external cooling device 200 disposed outside the transmission body 100.

The external cooling device 200 comprises a cooling pipe 210, an oil outlet pipe 220 and an oil return pipe 230, wherein the oil outlet pipe 220 is provided with a first end 221 and a second end 222, the first end 221 is communicated with an oil outlet 110 of the transmission body 100, the oil return pipe 230 is provided with a third end 231 and a fourth end, the third end 231 is communicated with an oil return port 120 of the transmission body 100, and the fourth end is communicated with the second end 222 through the cooling pipe 210. The cooling pipe 210 may be a component made of a metal material, a component made of a plastic material, or a component made of other materials with better heat conductivity. Alternatively, the cooling tube 210 is a component made of a metal material that has high temperature resistance, corrosion resistance, and facilitates manufacturing and shaping. The oil outlet pipe 220 and the oil return pipe 230 may be pipes made of rubber, or may be pipes made of other materials. The oil outlet pipe 220 and the oil return pipe 230 made of rubber have good heat resistance and oil resistance, and the rubber is soft, so the oil outlet pipe 220 and the oil return pipe 230 made of rubber are more favorable for transferring gear oil.

In the embodiment of the present application, the gear oil in the transmission body 100 is cooled by the internal cooling device, and then enters the oil outlet pipe 220 through the first end 221 communicated with the oil outlet 110, and then enters the cooling pipe 210 through the second end 222 communicated with the cooling pipe 210, the gear oil entering the cooling pipe 210 transfers the heat carried by the gear oil to the external environment through the pipe wall of the cooling pipe 210, so as to reduce the temperature of the gear oil itself, and then enters the oil return pipe 230 through the fourth end connected with the cooling pipe 210, and finally, the gear oil returns to the transmission body 100 through the oil return port 120 communicated with the third end 231 of the oil return pipe 230. After the dual cooling of interior cooling device and outer cooling device 200 for go in a large amount of heat in the gear oil was transmitted the external environment originally, the gear oil that last transmission returned in gearbox body 100 is the lower gear oil of temperature, and the gear oil that the temperature is low more is favorable to gearbox body 100's operation, consequently, can improve the relatively poor problem of current scheme to gearbox gear oil's cooling effect through above-mentioned mode.

In one embodiment, the external cooling device 200 further includes a housing 240, the housing 240 is filled with a cooling medium, and the cooling pipe 210 is at least partially located in the housing 240. The cooling medium can be water or other substances with better heat absorption capacity. Optionally, the cooling medium is water, which has good heat absorption capacity, is easy to obtain and has low cost. The gear oil entering the cooling pipe 210 from the oil outlet pipe 220 exchanges heat through the pipe wall of the cooling pipe 210, and when the gear oil flows through the part of the cooling pipe 210 which is positioned in the box 240 and is in contact with the cooling medium, the heat in the gear oil is directly transferred to the cooling medium through the pipe wall of the cooling pipe 210; when the gear oil flows through the portion of the cooling pipe 210 that is located in the tank 240 and not in contact with the cooling medium, the heat in the gear oil is transferred into the tank 240 through the pipe wall of the cooling pipe 210, then radiated to the cooling medium, absorbed by the cooling medium, and radiated to the surface of the tank 240 for diffusion. So can make a large amount of heats in the gear oil absorbed by cooling medium to make the gear oil that returns to in the gearbox body 100 be the gear oil that the temperature is lower, and then ensure that gearbox body 100 can move under low temperature environment.

Further, the cooling pipe 210 includes a first pipe section 211 and a second pipe section 212 connected together, the first pipe section 211 is communicated with the second end 222, the second pipe section 212 is communicated with the fourth end, the first pipe section 211 is at least partially located outside the box body 240, and the second pipe section 212 is at least partially located outside the box body 240. The second end 222 of the oil outlet pipe 220 is connected with the part of the first pipe section 211 extending out of the box body 240, the fourth end of the oil return pipe 230 is connected with the part of the second pipe section 212 extending out of the box body 240, and the parts of the first pipe section 211 and the second pipe section 212 extending out of the box body 240 can facilitate the connection of the cooling pipe 210 with the oil outlet pipe 220 and the oil return pipe 230, so that the assembly operation of the transmission system is simplified, and meanwhile, the fault removal and the maintenance of the transmission system are facilitated.

In a further embodiment, the first pipe segment 211 and the second pipe segment 212 are both straight pipe segments, and the end of the first pipe segment 211 facing away from the oil outlet pipe 220 is located at the top of the tank 240, and the end of the second pipe segment 212 facing away from the oil return pipe 230 is located at the bottom of the tank 240. The end of the first pipe section 211, which is far away from the oil outlet pipe 220, is arranged at the top of the box body 240, so that the gear oil entering the first pipe section 211 from the oil outlet pipe 220 can quickly flow into the main working position of the cooling pipe 210, and the gear oil is prevented from staying in the first pipe section 211 for too long, so that the cooling efficiency of the gear oil is influenced; the end of the second pipe section 212 facing away from the oil return pipe 230 is disposed at the bottom of the casing 240, so that the cooled gear oil can be returned to the oil return pipe 230 and then to the transmission body 100 in a relatively fast manner, thereby facilitating the operation of the transmission body 100.

In an alternative embodiment, the cooling tube 210 further includes a third tube segment 213, the first tube segment 211 is communicated with the second tube segment 212 through the third tube segment 213, and the third tube segment 213 is a bending type tube segment. The gear oil enters the first pipe section 211 from the oil outlet pipe 220 and then enters the third pipe section 213 from the first pipe section 211, and because the third pipe section 213 is a bent pipe section, a longer third pipe section 213 can be arranged in the box body 240, so that the gear oil entering the third pipe section 213 can have a larger heat dissipation area to transfer more heat in the gear oil to a cooling medium, and the purpose of cooling the gear oil is achieved.

In a further alternative embodiment, the third tubular segment 213 comprises a plurality of V-shaped segments that are in series in a direction parallel to the second tubular segment 212. Through the arrangement mode, the longer third pipe section 213 can be arranged in the box body 240, and in the process that the gear oil passes through the third pipe section 213, heat in the gear oil can be sufficiently transferred to the cooling medium through the longer flow path in the third pipe section 213, so that the temperature of the gear oil can be greatly reduced, and the operation of the gearbox body 100 is facilitated. Meanwhile, the structure of the third pipe section 213 is simple, thereby reducing the cost of the cooling pipe 210.

In one embodiment, the direction that the bottom of the box 240 extends toward the top of the box 240 is a first direction, and the first pipe segment 211 and the second pipe segment 212 are both parallel to the first direction. In the process that gear oil enters the first pipe section 211 from the oil outlet pipe 220, because the first pipe section 211 is parallel to the first direction, the gear oil can quickly enter the third pipe section 213 from the first pipe section 211 to be cooled by the action of gravity when entering the first pipe section 211, so that the efficiency of cooling the gear oil is accelerated, and then the gear oil enters the second pipe section 212, because the second pipe section 212 is parallel to the first direction, the gear oil can quickly enter the oil return pipe 230 through a short flow path, and finally enters the transmission body 100, so that the oil return speed of the gear oil in the transmission body 100 is higher.

In an alternative embodiment, the tank 240 is provided with a water outlet pipe 241 and a water inlet pipe 242, the water outlet pipe 241 is communicated with the tank 240, and the water inlet pipe 242 is communicated with the tank 240. The cooling medium in the case 240 lowers the temperature of the gear oil by absorbing heat in the gear oil transferred from the cooling pipe 210, and thus the cooling medium contains a large amount of heat. The cooling medium absorbing a large amount of heat can be discharged by providing the water outlet pipe 241 and the water inlet pipe 242 on the box body 240, which are communicated with the box body 240, and the cooling medium with a lower temperature is added again, so that the absorption of heat in the gear oil is facilitated. Or the cooling medium with absorbed heat can be discharged from the water outlet pipe 241 while adding the cooling medium with low temperature from the water inlet pipe 242, so that the cooling medium in the box body 240 is always in a circulating state, the gear oil in the cooling pipe 210 and the cooling medium in the box body 240 always have large temperature difference, and the heat in the gear oil can be absorbed by the cooling medium rapidly.

In an alternative embodiment, the external cooling device 200 may be fixed to a sidewall of the transmission body 100, or may be provided separately from the transmission body 100. Attaching the external cooling device 200 to the side wall of the transmission body 100 may reduce the space occupied by the transmission system. The external cooling device 200 and the transmission body 100 are arranged separately, so that operators can conveniently and reasonably plan and utilize the operation space of the equipment.

In another alternative embodiment, the internal cooling device has a gear oil outlet which communicates with the oil outlet pipe 220 through the oil outlet port 110. After being cooled by the internal cooling device, the gear oil enters the external cooling device 200 through a gear oil outlet communicated with the oil outlet pipe 220 through the oil outlet 110, and then the gear oil cooled in the internal cooling device is cooled again. The internal cooling device is provided with a gear oil outlet, so that gear oil can conveniently enter the external cooling device 200 through the oil outlet 110, and the gear oil in a high-temperature state can be cooled doubly, so that the temperature of the gear oil reaches the temperature suitable for the operation of the transmission body 100.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Gearbox system, characterised in that it comprises a gearbox body (100), an internal cooling device arranged inside said gearbox body (100), and an external cooling device (200), said external cooling device (200) being arranged outside said gearbox body (100),

outer cooling device (200) include cooling tube (210), go out oil pipe (220) and return oil pipe (230), go out oil pipe (220) and have first end (221) and second end (222), first end (221) with oil-out (110) of gearbox body (100) are linked together, return oil pipe (230) have third end (231) and fourth end, third end (231) with oil return opening (120) of gearbox body (100) are linked together, the fourth end is passed through cooling tube (210) with second end (222) are linked together.

2. The gearbox system according to claim 1, characterized in that the external cooling device (200) further comprises a tank (240), the tank (240) being filled with a cooling medium, the cooling pipe (210) being at least partially located within the tank (240).

3. The transmission system of claim 2, wherein the cooling tube (210) includes a first tube segment (211) and a second tube segment (212) connected, the first tube segment (211) communicating with the second end (222), the second tube segment (212) communicating with the fourth end, the first tube segment (211) being at least partially outside the case (240), the second tube segment (212) being at least partially outside the case (240).

4. The transmission system according to claim 3, wherein the first pipe section (211) and the second pipe section (212) are both straight pipe sections, and wherein an end of the first pipe section (211) facing away from the oil outlet pipe (220) is located at the top of the casing (240), and an end of the second pipe section (212) facing away from the oil return pipe (230) is located at the bottom of the casing (240).

5. The gearbox system of claim 4, wherein the cooling tube (210) further comprises a third tube segment (213), the first tube segment (211) communicating with the second tube segment (212) through the third tube segment (213), the third tube segment (213) being a bent-type tube segment.

6. The gearbox system according to claim 5, characterised in that the third pipe section (213) comprises a plurality of V-shaped sections which are in series in a direction parallel to the second pipe section (212).

7. The gearbox system of claim 4, wherein a direction in which a bottom of the casing (240) extends to a top of the casing (240) is a first direction, and the first tube section (211) and the second tube section (212) are both parallel to the first direction.

8. Gearbox system according to claim 2, characterised in that said tank (240) is provided with an outlet pipe (241) and an inlet pipe (242), said outlet pipe (241) being in communication with said tank (240) and said inlet pipe (242) being in communication with said tank (240).

9. The gearbox system according to claim 1, characterised in that the external cooling device (200) is fixed to a side wall of the gearbox body (100).

10. The transmission system according to claim 1, characterized in that said internal cooling device has a gear oil outlet communicating with said oil outlet pipe (220) through said oil outlet port (110).