High-power transmission lubricating system and transmission

Abstract

The high-power transmission lubricating system comprises a transmission shell, the transmission shell comprises a front shell body, a middle shell body and a rear shell body which are connected, the front shell body and the middle shell body form a front box, and the middle shell body and the rear shell body form a rear box; a lubricating oil pipe is arranged on the upper portion in the transmission shell, and the two ends of the lubricating oil pipe are limited through a front shell supporting hole formed in the front shell and a rear shell supporting hole formed in the rear shell respectively. An oil filter, an electronic oil pump and an oil suction way are arranged in the rear shell, an oil inlet of the oil filter is connected with an oil pool in the transmission, an oil outlet of the oil filter is connected with the input end of the electronic oil pump, the output end of the electronic oil pump is communicated with an oil inlet of the oil suction way, and an oil outlet of the oil suction way is connected with an oil inlet of a lubricating oil pipe. The whole box is effectively sprayed through the lubricating oil pipe, the magnet capable of effectively adsorbing impurities such as scrap iron is arranged at the oil inlet of the oil filter, the overall smoothness of a lubricating oil way can be improved, and the ideal lubricating effect can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of transmission, especially relates to a high -power transmission lubricating system and transmission. BACKGROUND

[0002] Electric vehicles have become the focus of automobile research and development due to their energy-saving, low-emission and other advantages, and heavy-load pure electric traction vehicles and dump trucks are needed under certain special conditions, some of which are equipped with double high-power high-speed motors without power interruption transmission, the peak power of such high-power transmission can reach 660Kw, the maximum output torque can reach 23000Nm, which can effectively solve the safety problem of heavy-load vehicles caused by power loss during gear shifting, but in high-power working mode, the transmission generates a large amount of heat, and due to the height problem, some points are difficult to be lubricated by ordinary oil throwing, and high temperature of the transmission will affect the internal parts of the transmission, and there is a lack of lubricating system suitable for the above-mentioned high-power transmission in the prior art, resulting in poor oil temperature stability and low reliability of the transmission under normal working conditions, which ultimately affects the safety of vehicle driving, and improvement is urgently needed. SUMMARY

[0003] The utility model discloses a high -power transmission lubricating system and transmission, to solve the lubricating system oil temperature stability of high -power transmission in prior art is poor, influence vehicle driving safety's problem.

[0004] In order to solve the above technical problem, the utility model adopts the following technical scheme to realize:

[0005] A kind of high -power transmission lubricating system, including transmission housing, the transmission housing includes the front shell, middle shell and rear shell of connection arrangement, the front shell and middle shell constitute front box, the middle shell and rear shell constitute rear box;

[0006] The upper part of the transmission housing is provided with a lubricating oil pipe, and the two ends of the lubricating oil pipe are limited by a front shell support hole provided in the front shell and a rear shell support hole provided in the rear shell.

[0007] The rear shell is provided with an oil filter, an electronic oil pump and an oil suction oil path, the oil filter inlet is connected to the oil pool in the transmission, the oil filter outlet is connected to the input end of the electronic oil pump, the output end of the electronic oil pump is communicated with the oil suction oil path inlet, and the oil suction oil path outlet is connected with the lubricating oil pipe inlet.

[0008] The utility model also has the following technical features:

[0009] Specific, the lubricating oil pipe includes first oil pipe and second oil pipe which are communicated, the first oil pipe is arranged in the front tank, the second oil pipe is arranged in the rear tank, a plurality of first oil holes are formed in the circumferential direction on the side wall of the first oil pipe, a plurality of second oil holes are formed in the circumferential direction on the side wall of the second oil pipe.

[0010] Further, the first mounting groove is arranged near the oil filter oil inlet, and a magnet for adsorbing metal debris in lubricating oil is embedded in the first mounting groove.

[0011] Further, the second mounting groove is provided with a lubricating oil discharge hole, and a first oil plug is arranged in the lubricating oil discharge hole.

[0012] Further, the front shell support hole and the rear shell support hole are arranged in different horizontal planes.

[0013] Further, a guide hole is formed in the side wall of the rear shell, and the guide hole is coaxially communicated with the rear shell support hole.

[0014] Further, a second oil plug is detachably arranged in the guide hole.

[0015] The utility model discloses still protect a kind of transmission, including above-mentioned high-power transmission lubrication system.

[0016] Compared with prior art, the utility model has the following technical effects:

[0017] The high-power transmission lubrication system of the utility model can effectively spray the whole tank by the lubricating oil pipe arranged in the upper part of the transmission shell, especially, the oil holes of different positions and different angles are formed in the circumferential direction of the lubricating oil pipe, so that different shaft systems in the front tank and the rear tank can be fully lubricated; the magnet for effectively adsorbing iron filings and other impurities is arranged at the oil inlet of the oil filter, so that the overall smoothness of the lubricating oil circuit can be improved; the rear shell support hole and the front shell support hole are arranged in the transmission shell, so that the lubricating oil pipe can be limited; the assembly efficiency is effectively improved by arranging the guide hole, the utility model has simple structure and can achieve ideal lubrication effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the sectional view of the utility model;

[0019] Fig. 2 It is the local structure schematic view of the utility model;

[0020] Fig. 3 It is the local structure inclined view of the rear shell of transmission;

[0021] Fig. 4Figure 2 is a schematic view of the guide hole and the second oil plug.

[0022] 1-transmission housing, 2-lubricating oil pipe, 3-front housing support hole, 4-rear housing support hole, 5-oil filter, 6-electronic oil pump, 7-oil suction oil way, 8-magnet, 9-guide hole, 10-second oil plug; 11-front housing, 12-middle housing, 13-rear housing; 21-first oil pipe, 22-second oil pipe; 131-first installation groove, 132-second installation groove, 133-first oil plug. DETAILED DESCRIPTION

[0023] The following specific embodiments of the present application are given, it should be noted that the present application is not limited to the following specific embodiments, any equivalent transformation made on the basis of the technical scheme of the present application falls within the protection scope of the present application.

[0024] The terms "upper", "lower", "front", "rear" and the like used in the present application indicate the orientation or positional relationship only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and "inner" and "outer" refer to the inner and outer contours of the corresponding components. The above terms should not be understood as limiting the present application. In addition, the ordinal terms "first", "second" and the like are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.

[0025] In the present application, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly without the opposite description, for example, it can be fixedly connected, or it can be detachably connected or integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Unless otherwise specified, the components in the present application can be purchased from the market.

[0027] Example 1

[0028] According to the above technical scheme, for example, Figs. 1 to 4As shown, the embodiment provides a high-power transmission lubrication system, which comprises a transmission housing 1, the transmission housing 1 comprises a front housing 11, a middle housing 12 and a rear housing 13 which are connected and arranged, the front housing 11 and the middle housing 12 form a front box, the middle housing 12 and the rear housing 13 form a rear box, a lubricating oil pipe 2 is arranged at the upper part of the transmission housing 1, and the two ends of the lubricating oil pipe 2 are limited by a front housing support hole 3 arranged in the front housing 11 and a rear housing support hole 4 arranged in the rear housing 13.

[0029] An oil filter 5, an electronic oil pump 6 and an oil suction oil way 7 are arranged in the rear housing 13, wherein the oil suction oil way 7 is arranged on the side wall of the rear housing 13, the oil inlet of the oil filter 5 is connected with an oil pool in the transmission, the oil outlet of the oil filter 5 is connected with the input end of the electronic oil pump 6, the output end of the electronic oil pump 6 is communicated with the oil inlet of the oil suction oil way 7, and the oil outlet of the oil suction oil way 7 is connected with the oil inlet of the lubricating oil pipe 2.

[0030] In the embodiment, the electronic oil pump 6 is an embedded electronic oil pump, which can fully utilize the internal space of the transmission housing, reduce the occupation of the transmission system to the volume of the whole vehicle, and the oil filter 5 adopts a detachable filter screen, which is convenient for maintenance and disassembly inspection.

[0031] As a preferred scheme of the embodiment, the lubricating oil pipe 2 comprises a first oil pipe 21 and a second oil pipe 22 which are communicated, the first oil pipe 21 is arranged in the front box, the second oil pipe 22 is arranged in the rear box, a plurality of first oil holes are formed on the side wall of the first oil pipe 21 in the circumferential direction, and a plurality of second oil holes are formed on the side wall of the second oil pipe 22 in the circumferential direction. The opening position, opening direction, aperture and opening angle of the first oil hole and the second oil hole can be determined according to the position of the meshing gear pair in the sensor, so as to realize sufficient lubrication of the corresponding meshing gear pair arranged in the front box and the rear box.

[0032] As a preferred scheme of the embodiment, the inner wall of the rear housing 13 is outwardly protruded to form a first mounting groove 131 and a second mounting groove 132, the first mounting groove 131 is arranged near the oil inlet of the oil filter 5, and a magnet 8 for adsorbing metal debris in the lubricating oil is embedded in the first mounting groove 131.

[0033] As a preferred scheme of the embodiment, a lubricating oil discharge hole is formed in the bottom of the second mounting groove 131, and a first oil plug 133 is arranged in the lubricating oil discharge hole. The front end of the first oil plug 133 penetrates into the second mounting groove 131 through the lubricating oil discharge hole, which is used for plugging the lubricating oil discharge hole and ensuring the sealing effect of the transmission.

[0034] As a preferred scheme of the embodiment, the front shell support hole 3 and the rear shell support hole 4 are arranged in different horizontal planes, and the installation direction of the lubricating oil pipe 2 is fixed through the position setting of the front shell support hole 3 and the rear shell support hole 4, thereby ensuring the fixed direction of the oil spraying of the lubricating oil pipe 2.

[0035] As a preferred scheme of the embodiment, the guiding hole 9 is arranged on the side wall of the rear shell 13 and coaxially communicates with the rear shell support hole 4, the position of the lubricating oil pipe can be observed from the outside through the guiding hole 9, thereby adjusting the direction of the assembly of the transmission shell, avoiding blind assembly, and improving the assembly efficiency.

[0036] As a preferred scheme of the embodiment, the second oil plug 10 is detachably arranged in the guiding hole 9. The guiding hole 9 is plugged by the second oil plug 10, thereby ensuring the sealing effect of the transmission.

[0037] In use, the lubricating oil in the oil pool in the transmission is sent into the oil suction oil path 7 through the oil filter 5 by means of the electronic oil pump 6, the lubricating oil entering the oil suction oil path 7 enters the lubricating oil pipe 2, and is sprayed through the oil holes arranged on the lubricating oil pipe 2, thereby fully lubricating different meshing gear pairs arranged in the lower part of the transmission shell.

[0038] The utility model discloses a kind of lubrication for high-power transmission, for the characteristics that transmission case is big and long, internal component is different greatly, working condition is changeable and complex, using the first oil pipe 21 and the second oil pipe 22 arranged in communication, located in different horizontal planes, and first oil hole and second oil hole are arranged in different positions, different angles along the circumferential direction of the first oil pipe 21 and the circumferential direction of the second oil pipe 22, the full spraying of lubricating oil in the transmission shell is realized.

[0039] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments, and various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0040] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, various possible combination manners are not described again in the present disclosure.

Claims

1. A high-power transmission lubrication system comprising a transmission housing (1) including front, middle and rear housings (11, 12, 13) connected in series, the front housing (11) and the middle housing (12) constituting a front tank, and the middle housing (12) and the rear housing (13) constituting a rear tank, characterized in that, The upper part of the transmission housing (1) is provided with a lubricating oil pipe (2), the two ends of the lubricating oil pipe (2) are respectively limited by a front housing support hole (3) provided in the front housing (11) and a rear housing support hole (4) provided in the rear housing (13); The rear housing (13) is provided with an oil filter (5), an electronic oil pump (6) and an oil suction oil way (7), the oil inlet of the oil filter (5) is connected with an oil pool in the transmission, the oil outlet of the oil filter (5) is connected with the input end of the electronic oil pump (6), the output end of the electronic oil pump (6) is communicated with the oil inlet of the oil suction oil way (7), and the oil outlet of the oil suction oil way (7) is connected with the oil inlet of the lubricating oil pipe (2).

2. The high power transmission lubrication system of claim 1, wherein, The lubricating oil pipe (2) comprises a first oil pipe (21) and a second oil pipe (22) which are communicated, the first oil pipe (21) is arranged in the front box, the second oil pipe (22) is arranged in the rear box, a plurality of first oil holes are formed in the side wall of the first oil pipe (21) in the circumferential direction, and a plurality of second oil holes are formed in the side wall of the second oil pipe (22) in the circumferential direction.

3. The high power transmission lubrication system of claim 1, wherein, The inner wall of the rear housing (13) is outwardly convex to form a first mounting groove (131) and a second mounting groove (132), the first mounting groove (131) is arranged near the oil inlet of the oil filter (5), and a magnet (8) for adsorbing metal scraps in lubricating oil is embedded in the first mounting groove (131).

4. The high power transmission lubrication system of claim 3, wherein, A lubricating oil discharge hole is formed in the bottom of the second mounting groove (132), and a first oil plug (133) is arranged in the lubricating oil discharge hole.

5. The high power transmission lubrication system of claim 1 wherein, The front housing support hole (3) and the rear housing support hole (4) are arranged in different horizontal planes.

6. The high power transmission lubrication system of claim 1, wherein, A guide hole (9) is formed in the side wall of the rear housing (13), and the guide hole (9) is coaxially communicated with the rear housing support hole (4).

7. The high power transmission lubrication system of claim 6, wherein, A second oil plug (10) is detachably arranged in the guide hole (9).

8. A transmission characterized by, The high-power transmission lubricating system comprises the high-power transmission lubricating system according to any one of claims 1-7.

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