Oil supply device of gearbox

Abstract

The utility model relates to an oil supply device of a gearbox, which belongs to the technical field of automobile oil supply and comprises an oil supply tank, the right side of the oil supply tank is communicated with a pump body, the right side of the pump body is communicated with a gearbox body, and the left end of the upper side of the gearbox body is fixedly connected with a first fixing frame. A second contact switch is mounted on the lower side of the first fixing frame in an embedded mode, a first contact switch is mounted on the inner bottom wall of the gearbox body in an embedded mode, and a telescopic device is arranged in the gearbox body. The telescopic device comprises an upper side positioning plate connected to the gearbox body through bolts. According to the oil supply device of the gearbox, oil in the oil supply tank is injected into the gearbox body through the pump body, the floating plate and the floating ball are used for pushing the first moving cylinder to jack upwards, when the first moving cylinder makes contact with the second contact switch, operation of the pump body is cut off, and when oil in the gearbox body is at the bottom, the bottom of the floating ball makes contact with the first contact switch, and operation of the pump body is started again; and automatic oil supply is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile oil supply, in particular to an oil supply device for a gearbox. Background Art

[0002] The gearbox, also known as the transmission, is an automotive accessory used to change the speed and torque from the engine, and can fix or shift the transmission ratio of the output shaft and input shaft; the gearbox has the functions of achieving reverse, changing the transmission ratio to adapt to different driving conditions, and using neutral gear to cut off the power transmission without shutting down the engine; when the gearbox is working, it requires the use of an oil supply system, and the engine oil plays the role of lubrication, cleaning, heat dissipation, rust prevention, and gear shifting.

[0003] After searching, the prior art announcement number CN221075183U discloses an oil supply device for an automobile gearbox, including an oil supply tank, an extraction mechanism provided on the oil supply tank, an input end of the extraction mechanism being connected to the oil supply tank, an output end of the extraction mechanism being connected to a gearbox body, the extraction mechanism drawing oil into the gearbox body, an oil return pipe being connected between the oil supply tank and the gearbox body, a quantity control mechanism being provided between the output end of the extraction mechanism and the gearbox body, the quantity control mechanism being used to control the amount of oil supplied, a temperature measuring mechanism being provided in the gearbox body for measuring the oil temperature in the gearbox body, the utility model can control the amount of oil supplied according to changes in the oil temperature, reduce the impact on components, reduce the rate of temperature rise in the gearbox body, achieve temperature balance in the gearbox, and increase the service life of components.

[0004] However, the oil supply in the gearbox of the utility model does not have an oil height device or other measures, which leads to oil leakage during oil filling. This not only causes oil waste, but also oil overflow may cause safety accidents such as fire and explosion. Therefore, a gearbox oil supply device is proposed to solve the above problems. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides an oil supply device for a gearbox, which has the advantages of automatically opening or closing the operation of the pump body to achieve automatic oil supply and avoid overflow. It solves the problem that there is no oil height equipment or other measures for oil supply in the gearbox, which leads to oil leakage during oil filling, which not only causes oil waste, but also oil overflow may cause fire, explosion and other safety accidents.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an oil supply device for a gearbox, comprising an oil supply tank, the right side of the oil supply tank being connected to a pump body, the right side of the pump body being connected to a gearbox body, a first fixing bracket being fixedly connected to the left end of the upper side of the gearbox body, a second contact switch being embedded and mounted on the lower side of the first fixing bracket, a first contact switch being embedded and mounted on the inner bottom wall of the gearbox body, and a telescopic device being provided inside the gearbox body;

[0007] The telescopic device includes a positioning plate bolted to the upper side of the gearbox body, a first movable cylinder slidably sleeved on the inner wall of the positioning plate, two interference blocks fixedly connected to the outer wall of the upper side of the first movable cylinder, a second movable cylinder slidably sleeved on the inner wall of the lower side of the first movable cylinder, a third movable cylinder slidably sleeved on the inner wall of the lower side of the second movable cylinder and a floating ball fixedly connected to the lower side of the third movable cylinder.

[0008] Furthermore, a return pipe is connected between the oil supply tank and the gearbox body, and the oil suction end of the pump body is connected to the right side of the oil supply tank.

[0009] Furthermore, the oil discharge end of the pump body is communicated with the left side of the gearbox body, and the internal fixing sleeve of the positioning plate is provided with a sealing sleeve.

[0010] Furthermore, the outer side of the first movable cylinder slides on the inner wall of the sealing sleeve, and a floating plate is fixedly sleeved on the outer wall of the floating ball.

[0011] Furthermore, the output ends of the second contact switch and the first contact switch are electrically connected to the output end of the pump body.

[0012] Furthermore, the floating plate is a foam plastic plate, and the diameter of the first moving cylinder is larger than the diameter of the second moving cylinder.

[0013] Furthermore, a column is fixedly connected to the upper side of one of the interference blocks, and a second fixing bracket is fixedly connected to the right end of the upper side of the gearbox body.

[0014] Furthermore, the outer side of the column passes through the second fixing frame and extends to the outside thereof.

[0015] Compared with the prior art, the present invention provides a gearbox oil supply device having the following features:

[0016] Beneficial effects:

[0017] 1. The oil supply device of the gearbox injects the oil in the oil supply tank into the gearbox through the pump body, and uses the floating plate and the floating ball to push the first movable cylinder upward. When it contacts the second contact switch, the operation of the pump body is disconnected. When the oil in the gearbox is exhausted, the bottom of the float ball contacts the first contact switch to start the pump body again, completing automatic oil supply.

[0018] 2. The oil supply device of the gearbox has a side column that slides inside the second fixed frame when the first movable cylinder moves up and down, which limits the movement of the first movable cylinder. This solves the problem that there is no oil height device or other measures for oil supply in the gearbox, which leads to oil leakage during oil filling, not only causing oil waste, but also oil overflow may cause fire, explosion and other safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model;

[0021] Figure 3 This is a structural stereogram of the positioning plate of the utility model;

[0022] Figure 4 It is a partial structural stereogram of the telescopic device of the utility model.

[0023] In the figure: 1 oil supply tank, 2 pump body, 3 gearbox body, 4 return pipe, 5 first contact switch, 6 first fixing frame, 7 second contact switch, 8 second fixing frame, 9 telescopic device, 10 positioning plate, 11 sealing sleeve, 12 first movable cylinder, 13 resistance block, 14 column, 15 second movable cylinder, 16 third movable cylinder, 17 float ball, 18 float plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1:

[0026] See also Figures 1 to 4In this embodiment, a gearbox oil supply device includes an oil supply tank 1. The right side of the oil supply tank 1 is connected to a pump body 2, and the right side of the pump body 2 is connected to a gearbox body 3. A first fixing bracket 6 is fixedly connected to the left end of the upper side of the gearbox body 3. A second contact switch 7 is embedded in the lower side of the first fixing bracket 6. A first contact switch 5 is embedded in the inner bottom wall of the gearbox body 3. A telescopic device 9 is provided inside the gearbox body 3. The telescopic device 9 includes a positioning plate 10 bolted to the upper side of the gearbox body 3, a first movable cylinder 12 slidingly mounted on the inner wall of the positioning plate 10, two abutment blocks 13 fixedly connected to the outer wall of the upper side of the first movable cylinder 12, a second movable cylinder 15 slidingly mounted on the inner wall of the lower side of the first movable cylinder 12, a third movable cylinder 16 slidingly mounted on the inner wall of the lower side of the second movable cylinder 15, and a floating ball 17 fixedly connected to the lower side of the third movable cylinder 16.

[0027] Among them, a return pipe 4 is connected between the oil supply tank 1 and the gearbox body 3, the oil suction end of the pump body 2 is connected to the right side of the oil supply tank 1, and the oil discharge end of the pump body 2 is connected to the left side of the gearbox body 3. The internal fixed sleeve of the positioning plate 10 is provided with a sealing sleeve 11, and the outer side of the first movable cylinder 12 slides on the inner wall of the sealing sleeve 11. The outer wall fixed sleeve of the float 17 is provided with a floating plate 18. The output ends of the second contact switch 7 and the first contact switch 5 are electrically connected to the output end of the pump body 2. The floating plate 18 is a foam plastic board. The diameter of the first movable cylinder 12 is larger than the diameter of the second movable cylinder 15.

[0028] Example 2:

[0029] See also Figures 1 to 3 On the basis of the first embodiment, it includes an upper column 14 fixedly connected to one of the interference blocks 13, and the right end of the upper side of the gearbox body 3 is fixedly connected to the second fixing frame 8, and the outer side of the column 14 passes through the second fixing frame 8 and extends to the outside thereof.

[0030] By adopting the above technical solution, when the interference block 13 moves vertically, the outer side of the column 14 slides in the second fixing frame 8 to limit the first moving cylinder 12 connected to the interference block 13 .

[0031] The working principle of the above embodiment is:

[0032] The pump body 2 absorbs the oil discharged from the oil supply tank 1 and fills the gearbox body 3 with oil. As the oil is continuously injected, the float 17 and the float plate 18 move upward from the gearbox body 3 and always keep floating above the oil level. The third movable cylinder 16 and the second movable cylinder 15 will also shrink upward due to the movement of the float 17 and change the spacing position until the first movable cylinder 12 moves upward and uses the resistance block 13 on one side to resist the second contact switch 7 to disconnect the operation of the pump body 2. The oil in the gearbox body 3 is filled and it is guaranteed not to overflow. As the gearbox body 3 is used, the oil will continue to drop and the float 17 will be synchronously lowered. When the lower side of the float 17 contacts the first contact switch 5 again, it means that the oil in the gearbox body 3 has been used up, and the pump body 2 will be started again to absorb the oil in the oil supply tank 1 and discharge it into the gearbox body 3, thereby realizing the automatic oil supply effect.

[0033] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods, and can be implemented as long as they can achieve their beneficial effects. In addition, the electrical components appearing in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Technicians in this field can control the electrical components through simple programming, and the existing disclosed power connection technology is also common knowledge in this field, so the specific structural composition and working principle will not be described in detail in this embodiment.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gearbox oil supply device, comprising an oil supply tank (1), characterized in that: The right side of the oil supply tank (1) is connected to the pump body (2), and the right side of the pump body (2) is connected to the gearbox body (3). The left end of the upper side of the gearbox body (3) is fixedly connected to a first fixing frame (6), and the lower side of the first fixing frame (6) is embedded with a second contact switch (7). The inner bottom wall of the gearbox body (3) is embedded with a first contact switch (5), and a telescopic device (9) is provided inside the gearbox body (3); The telescopic device (9) comprises a positioning plate (10) bolted to the upper side of the gearbox body (3), a first movable cylinder (12) slidingly sleeved on the inner wall of the positioning plate (10), two abutment blocks (13) fixedly connected to the outer wall of the upper side of the first movable cylinder (12), a second movable cylinder (15) slidingly sleeved on the inner wall of the lower side of the first movable cylinder (12), a third movable cylinder (16) slidingly sleeved on the inner wall of the lower side of the second movable cylinder (15), and a floating ball (17) fixedly connected to the lower side of the third movable cylinder (16).

2. The oil supply device for a gearbox according to claim 1, characterized in that: A return pipe (4) is connected between the oil supply tank (1) and the gearbox body (3), and the oil suction end of the pump body (2) is connected to the right side of the oil supply tank (1).

3. The oil supply device for a gearbox according to claim 1, characterized in that: The oil discharge end of the pump body (2) is communicated with the left side of the gearbox body (3), and a sealing sleeve (11) is provided inside the fixing sleeve of the positioning plate (10).

4. The oil supply device for a gearbox according to claim 3, characterized in that: The outer side of the first moving cylinder (12) slides on the inner wall of the sealing sleeve (11), and the outer wall of the floating ball (17) is fixedly sleeved with a floating plate (18).

5. The oil supply device for a gearbox according to claim 1, characterized in that: The output ends of the second contact switch (7) and the first contact switch (5) are both electrically connected to the output end of the pump body (2).

6. The oil supply device for a gearbox according to claim 4, characterized in that: The floating plate (18) is a foam plastic plate, and the diameter of the first moving cylinder (12) is larger than the diameter of the second moving cylinder (15).

7. The oil supply device for a gearbox according to claim 1, characterized in that: The upper side of one of the abutment blocks (13) is fixedly connected to a column (14), and the right end of the upper side of the gearbox body (3) is fixedly connected to a second fixing frame (8).

8. The oil supply device for a gearbox according to claim 7, characterized in that: The outer side of the column (14) passes through the second fixing frame (8) and extends to the outside thereof.

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