CN219413496U

CN219413496U - Transmission device

Info

Publication number: CN219413496U
Application number: CN202320889130.XU
Authority: CN
Inventors: 彭斌; 施洁青
Original assignee: Shanghai Automobile Gear Works
Current assignee: Shanghai Automobile Gear Works
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-07-25
Anticipated expiration: 2033-04-19

Abstract

The utility model discloses a transmission, which comprises a transmission shell and an oil delivery structure, wherein the transmission shell is provided with an independent clutch oil cavity and an oil passing channel, two ends of the oil passing channel are respectively communicated to the upper side and the lower side of the clutch oil cavity, a clutch is rotatably arranged in the clutch oil cavity, the oil delivery structure comprises an oil pumping device and a bridging tube, the oil pumping device is arranged in the transmission shell and communicated to the oil passing channel, the bridging tube is arranged in the clutch oil cavity, one end of the bridging tube is communicated to the upper end of the oil passing channel, and the other end of the bridging tube extends to a lubricating oil inlet of the clutch. Through independently setting up the clutch oil pocket, simultaneously to the clutch oil pocket alone set up the oil passage with send oily structure can ensure the cooling lubricating fluid in the clutch oil pocket circulates alone to do not influence the solenoid valve in the tooth axle installation cavity.

Description

Transmission device

Technical Field

The utility model relates to the technical field of transmission lubrication, in particular to a transmission.

Background

The general derailleur adopts mechanical pump and valve body oil circuit branch to cool and lubricate wet-type double clutch, and this just needs double clutch fluid and valve body fluid to adopt the scheme of sharing the chamber, to the particulate matters such as carbon fiber that working element such as double clutch friction disc produced, easily gets into valve body solenoid valve case along with fluid flow, has the potential risk of solenoid valve jamming. In addition, after part of the transmission adopts the clutch cooling and lubricating mode, more transmission oil liquid needs to be added, so that oil can be stirred in the working process of the clutch, and the output efficiency of the transmission is affected.

Disclosure of Invention

The utility model mainly aims to provide a transmission and aims to solve the problem that carbon fiber particles in oil are easy to cause clamping stagnation of a valve core of an electromagnetic valve when the oil and the oil of a valve body of an existing clutch are mixed in a cavity.

To achieve the above object, the present utility model provides a transmission including:

the transmission housing is provided with an independent clutch oil cavity and an oil passing channel, two ends of the oil passing channel are respectively communicated to the upper side and the lower side of the clutch oil cavity, and a clutch is rotatably arranged in the clutch oil cavity; the method comprises the steps of,

the oil conveying structure comprises an oil pumping device and a bridging pipe, wherein the oil pumping device is arranged on the transmission shell and communicated with the oil passing channel, the bridging pipe is arranged in the clutch oil cavity, one end of the bridging pipe is communicated with the upper end of the oil passing channel, and the other end of the bridging pipe extends to the lubricating oil inlet of the clutch.

Optionally, the oil pumping device comprises an electronic oil pump.

Optionally, an oil return gap is formed between the clutch and the bottom wall of the clutch oil cavity, and the oil return gap is used for accommodating lubricating oil;

and the lower end of the oil passing channel is communicated to the oil return gap.

Optionally, the transmission further comprises a suction filter, wherein the suction filter is arranged in the oil return gap and is communicated to the lower end of the oil passing channel.

Optionally, the transmission housing includes a main housing and a split housing, the main housing is downward and is provided with an opening, the split housing is detachably covered to the opening of the main housing to form the clutch oil cavity in a surrounding manner, the oil return gap is formed between the clutch and the split housing, and the oil passing channel is formed in the main housing;

the suction filter is clamped between the main shell and the split charging shell.

Optionally, a sealing gasket is arranged between the oil outlet of the suction filter and the oil passage.

Optionally, the transmission includes an oil cooler provided to the transmission case and communicated to the oil passage.

Optionally, the transmission comprises an oil temperature sensor, and the oil temperature sensor is arranged on the oil outlet side of the oil cooler and is arranged on the oil passing channel.

Optionally, the middle part of the bridging tube is connected to the inner wall of the clutch oil cavity through a bolt connection structure.

Optionally, the clutch comprises a dual clutch.

According to the technical scheme provided by the utility model, the clutch oil cavity is independently arranged and is combined with the oil passing channel to form a set of independent cooling oil circulating channel, cooling oil is sucked into the oil passing channel from the lower end opening of the oil passing channel under the pumping action of the oil pumping device, and then flows into the bridging tube through the upper end opening of the oil passing channel, so that the clutch is entered, and particles such as carbon fibers generated by working parts such as a clutch friction plate only circulate in the clutch oil cavity and the oil passing channel, and cannot enter the valve oil cavity, so that the particles are fundamentally prevented from entering the electromagnetic valve, and the jamming risk of the electromagnetic valve can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a transmission according to an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional structure of the transmission of fig. 1.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Transmission device	21	Oil pumping device
1	Transmission case	22	Bridging tube
				11	Main shell	3	Suction filter
111	Oil passage	4	Sealing gasket
				12	Split charging shell	5	Oil cooler
2	Oil feeding structure	6	Oil temperature sensor

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the case where a directional instruction is involved in the embodiment of the present utility model, the directional instruction is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional instruction is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In view of the above, the present utility model provides a transmission, which aims to solve the problem that carbon fiber particles in oil easily cause the clamping stagnation of a valve core of an electromagnetic valve when the oil of an existing clutch is mixed with the oil of a valve body in a blending mode, wherein fig. 1 to 2 are schematic structural diagrams of an embodiment of the transmission provided by the present utility model.

Referring to fig. 1-2, the transmission 100 includes a transmission housing 1 and an oil delivery structure 2, the transmission housing 1 is formed with an independent clutch oil cavity and an oil passage 111, two ends of the oil passage 111 are respectively connected to the upper and lower sides of the clutch oil cavity, a clutch is rotatably disposed in the clutch oil cavity, the oil delivery structure 2 includes an oil pumping device 21 and a bridge pipe 22, the oil pumping device 21 is disposed in the transmission housing 1 and is connected to the oil passage 111, the bridge pipe 22 is disposed in the clutch oil cavity, one end of the bridge pipe 22 is connected to the upper end of the oil passage 111, and the other end extends to a lubricant inlet of the clutch.

According to the technical scheme provided by the utility model, the clutch oil cavity is independently arranged, a set of independent cooling oil circulation channels are formed by combining the oil passing channels 111, cooling oil is sucked into the oil passing channels 111 from the lower end openings of the oil passing channels 111 under the pumping action of the oil pumping device 21, and then flows into the bridging tube 22 through the upper end openings of the oil passing channels 111, so that particles such as carbon fibers generated by working parts such as a clutch friction plate enter the clutch, circulate only between the clutch oil cavity and the oil passing channels 111, and do not enter the valve oil cavity, so that the particles are fundamentally prevented from entering the electromagnetic valve, and the jamming risk of the electromagnetic valve can be reduced.

The oil pumping device 21 may have various options, for example, may be a mechanical pump, specifically, in this embodiment, the oil pumping device 21 includes an electronic oil pump, through which oil pumping according to needs can be implemented, cooling and lubrication of the clutch can be accurately implemented, and on the basis of meeting the cooling and lubrication requirements of the clutch, energy loss can be effectively reduced, and overall transmission efficiency of the transmission is improved.

It will be appreciated that oil stirring of the clutch during rotation also reduces the transmission efficiency of the transmission assembly, and in this embodiment, an oil return gap is formed between the clutch and the bottom wall of the clutch oil chamber, the oil return gap is used to accommodate lubricating oil, the lower end of the oil passing channel 111 is conducted to the oil return gap, and by reserving the oil return gap between the clutch and the bottom wall of the clutch oil chamber, the returned cooling oil can only converge in the return gap, and the height of the liquid level is lower than the radius of rotation of the clutch, so that the condition that oil stirring does not occur during rotation of the clutch can be ensured.

In this embodiment, the transmission 100 further includes a suction filter 3, where the suction filter 3 is disposed in the oil return gap and is communicated to the lower end of the oil passage 111. The particulate matters in the cooling oil flowing back into the oil return gap can be filtered out through the suction filter 3, so that the purity of the cooling oil flowing into the oil passing channel 111 is ensured, and the damage of the oil pumping device 21 can be avoided.

Further, the suction filter 3 may need to be cleaned or replaced after long-term use, and for convenience of operation, in this embodiment, the transmission housing 1 includes a main housing 11 and a split housing 12, the main housing 11 is disposed downward in an opening, the split housing 12 is detachably covered to the opening of the main housing 11 to form the clutch oil cavity, the oil return gap is formed between the clutch and the split housing 12, and the oil passing channel 111 is formed in the main housing 11; the suction filter 3 is sandwiched between the main casing 11 and the sub-packaging casing 12. The suction filter 3 is clamped in the main shell 11 and the split charging shell 12 which are detachably connected, so that the suction filter 3 can be cleaned and maintained in the later period conveniently.

Further, in this embodiment, a sealing gasket 4 is disposed between the oil outlet of the suction filter 3 and the oil passage 111, so as to ensure airtight conduction between the oil outlet of the suction filter 3 and the oil passage 111, and ensure pumping efficiency of the pumping device 21.

It can be appreciated that the temperature of the clutch needs to be taken away in time to ensure that the clutch works in a reasonable temperature interval, based on this, in this embodiment, the transmission 100 includes an oil cooler 5, the oil cooler 5 is disposed in the transmission housing 1 and is conducted to the oil passing channel 111, and heat exchange can be performed on the cooling oil by the oil cooler 5, so that the temperature of the cooling oil is reduced in time, and the cooling effect on the clutch is ensured.

In order to timely feed back the oil temperature of the cooling oil, and ensure the cooling effect on the clutch, in this embodiment, the transmission 100 includes an oil temperature sensor 6, where the oil temperature sensor 6 is disposed in the oil passing channel 111 and is located at the oil outlet side of the oil cooler 5. Since the oil temperature sensor 6 is disposed at the side of the oil outlet of the oil cooler 5 in the oil passage 111, it functions to monitor the temperature of the cooling oil to be introduced into the bridge pipe 22 to feed back the operation of the clutch.

Since the bridging tube 22 is used for bridging the oil passage 111 and the lubricant inlet of the clutch, and the middle part thereof has a larger span, in order to ensure the connection stability of the bridging tube 22, in this embodiment, the middle part of the bridging tube 22 is connected to the inner wall of the clutch oil cavity through a bolt connection structure, and the connection point of the bridging tube 22 can be increased through the bolt connection structure, so that the stability of the structure is enhanced.

The types of the clutches are various, and specifically, the clutches include double clutches.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the specification and drawings of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A transmission, comprising:

2. The transmission of claim 1, wherein the oil pumping device comprises an electronic oil pump.

3. The transmission of claim 1, wherein an oil return gap is formed between the clutch and a bottom wall of the clutch oil chamber, the oil return gap being for accommodating lubricating oil;

4. The transmission of claim 3, further comprising a suction filter disposed in the oil return gap and communicating to a lower end of the oil passage.

5. The transmission of claim 4, wherein the transmission housing includes a main housing and a split housing, the main housing being open downward, the split housing being removably capped to the opening of the main housing to circumscribe the clutch oil chamber, the oil return gap being formed between the clutch and the split housing, the oil passage being formed in the main housing;

6. The transmission of claim 5, wherein a sealing gasket is disposed between the oil outlet of the suction filter and the oil passage.

7. The transmission of claim 1, comprising an oil cooler disposed in the transmission housing and in communication with the oil passage.

8. The transmission of claim 7, wherein the transmission includes an oil temperature sensor disposed in the oil passage on an oil outlet side of the oil cooler.

9. The transmission of claim 1, wherein a middle portion of the bridge tube is connected to an inner wall of the clutch oil chamber by a bolting structure.

10. The transmission of claim 1, wherein the clutch comprises a dual clutch.