Gearbox overheating protection device

Abstract

The invention belongs to the technical field of gearboxes, and particularly relates to a gearbox overheating protection device. The gearbox is reasonable in structural design and is mainly composed of a gearbox transmission component, a heat dissipation component, a heat dissipation fan and a lubricating oil filtering assembly, a temperature sensor is installed in a gearbox, a controller is installed outside the gearbox, and the controller is connected with the temperature sensor and the heat dissipation fan. When the temperature sensor monitors that the oil temperature is higher than the designed highest threshold value, the heat dissipation fan is started through the external controller, the heat dissipation fan blows away hot air transferred to the heat dissipation component from a transmission pipe in the transmission component of the gearbox, and the gearbox is rapidly cooled from the interior; when the transmission component of the gearbox works, the reciprocating extrusion block extrudes the air bags of the lubricating oil filtering assembly at intervals, the oil inlet box of the lubricating oil filtering assembly sucks oil through the oil pumping pipe, oil enters the oil outlet box through the spiral heat conduction pipe, the oil outlet box intercepts impurities in the oil through the impurity blocking filter plate, and the performance and the service life of the gearbox are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of gearboxes, and in particular relates to a gearbox overheat protection device. Background Art

[0002] The gearbox overheat protection device is a key safety design in the automobile transmission system. Its main function is to prevent the gearbox from being damaged or degraded due to excessive temperature. The following is a description of the specific functions of the device: 1) Prevent overheat damage: Under extreme conditions such as long-term high-speed driving, heavy-load climbing, or frequent gear shifting, a large amount of heat will be generated inside the gearbox. If this heat cannot be effectively dissipated, the temperature of the gearbox oil will rise sharply, which may cause oil deterioration, seal aging, increased wear of bearings and gears, and even cause gearbox failure. The overheat protection device can monitor the gearbox temperature and automatically take measures to prevent further temperature rise once it exceeds the safety threshold, thereby protecting the gearbox from overheating damage. 2) Improve system reliability: Through timely intervention, the overheat protection device can effectively extend the service life of the gearbox and its internal components, reduce sudden failures caused by overheating, and improve the operational reliability and stability of the vehicle. This is especially important for scenarios such as long-distance transportation and off-road exploration that require continuous high-performance operation of the vehicle. 3) Enhance driving safety: Overheating of the gearbox may cause uneven gear shifting and unstable power output, affecting driving control and safety. The operation of the overheat protection device can ensure that the gearbox operates within a reasonable temperature range, maintain smooth power transmission, provide the driver with a good control experience, and ensure driving safety.

[0003] The existing gearbox overheat protection device has been found to have shortcomings during use. First, when the gearbox temperature reaches the designed maximum threshold, it cannot quickly cool down the gearbox from the inside; second, it cannot filter and remove impurities from the internal lubricating oil during the cooling process. The additives in the lubricating oil, such as anti-wear agents and antioxidants, will gradually be consumed during use, and some impurities may be generated, affecting the performance and life of the gearbox. Therefore, it needs to be optimized and improved. Summary of the invention

[0004] The purpose of the present invention is to overcome the above problems existing in the traditional technology and provide a gearbox overheat protection device.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a gearbox overheat protection device, comprising a gearbox transmission component, a heat dissipation component, a heat dissipation fan and a lubricating oil filter assembly; the gearbox transmission component and the lubricating oil filter assembly are installed inside the gearbox, the gearbox transmission component can provide power for the lubricating oil filter assembly during transmission, heat dissipation ports are provided on both sides of a box plate of the gearbox for exposing an inner cavity of the gearbox transmission component, the heat dissipation component is installed on the inner cavity wall of the gearbox transmission component, and the heat dissipation fan is installed on the outer side of the heat dissipation port of the gearbox.

[0007] Furthermore, in the above-mentioned gearbox overheat protection device, the gearbox transmission component includes a transmission pipe, a transmission gear and a reciprocating extrusion block are installed on the outer side of the transmission pipe, and a shaft seal is installed on the side plate of the gearbox at the point where the transmission pipe passes through.

[0008] Furthermore, in the above-mentioned gearbox overheat protection device, a temperature sensor for detecting oil temperature is installed inside the gearbox, and a controller is installed outside the gearbox, and the controller is connected to the temperature sensor and the cooling fan respectively.

[0009] Furthermore, in the above-mentioned gearbox overheat protection device, the heat dissipation component includes a heat pipe, the outer wall of the heat pipe is bonded and fixed to the inner wall of the transmission pipe by a heat-conducting adhesive; and a plurality of heat dissipation fins are installed on the inner wall of the heat pipe along the circumferential direction.

[0010] Furthermore, in the above-mentioned gearbox overheat protection device, the heat dissipation fins are in a straight plate structure or a spiral plate structure, and heat dissipation holes are evenly distributed on the heat dissipation fins.

[0011] Furthermore, in the above-mentioned gearbox overheating protection device, the lubricating oil filter assembly includes an oil inlet box, an air bag, an oil extraction pipe, a spiral heat pipe, an oil outlet box and a debris filter plate, the oil inlet box is installed with an air bag that can be squeezed at intervals by a reciprocating extrusion block, the front end of the oil inlet box is installed with an oil extraction pipe with a built-in first non-return valve, the rear end of the oil inlet box is connected to an oil outlet box with a built-in second non-return valve via a spiral heat pipe, and the oil outlet box is installed with a debris filter plate at the oil outlet.

[0012] Furthermore, in the above-mentioned gearbox overheat protection device, the spiral heat-conducting pipe is sleeved on the outside of the transmission pipe, and an anti-collision gap is left between the spiral heat-conducting pipe and the transmission pipe.

[0013] Furthermore, in the above-mentioned gearbox overheat protection device, the transmission pipe, the heat dissipation component and the spiral heat-conducting pipe are all made of stainless steel.

[0014] The beneficial effects of the present invention are:

[0015] The structure of the present invention is reasonably designed. It is mainly composed of a gearbox transmission component, a heat dissipation component, a heat dissipation fan and a lubricating oil filter component. When the temperature sensor detects that the oil temperature is higher than the designed maximum threshold, the heat dissipation fan is started through an external controller, and the heat dissipation fan blows away the hot air transferred from the transmission pipe in the gearbox transmission component to the heat dissipation component, thereby quickly cooling the gearbox from the inside; when the gearbox transmission component is working, the reciprocating extrusion block is used to squeeze the air bag of the lubricating oil filter component at intervals, and the oil inlet box of the lubricating oil filter component absorbs oil through the oil extraction pipe, and the oil enters the oil outlet box through the spiral heat pipe, and the oil outlet box uses a debris filter plate to intercept impurities in the oil, thereby ensuring the performance and life of the gearbox; at the same time, the design of the spiral heat pipe is convenient for assisting the transfer of the heat of the oil to the transmission pipe.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic side view of the structure of the present invention as a whole;

[0020] Figure 3 It is a structural schematic diagram of the transmission component of the gearbox in the present invention;

[0021] Figure 4 It is a structural schematic diagram of the heat dissipation component in the present invention;

[0022] Figure 5 It is a schematic diagram of the main structure of the heat dissipation component in the present invention;

[0023] Figure 6 It is a structural schematic diagram of the lubricating oil filter assembly in the present invention;

[0024] In the accompanying drawings, the reference numerals of the various components are as follows:

[0025] 1-gearbox transmission component, 101-transmission pipe, 102-transmission gear, 103-reciprocating extrusion block, 2-heat dissipation component, 201-heat conduction pipe, 202-heat dissipation fins, 203-heat dissipation holes, 3-cooling fan, 4-lubricating oil filter assembly, 401-oil inlet box, 402-air bag, 403-oil extraction pipe, 404-spiral heat conduction pipe, 405-oil outlet box, 406-debris filter plate. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] Embodiment 1

[0028] See also Figure 1-Figure 6 As shown, this embodiment provides a gearbox overheat protection device, including a gearbox transmission component 1, a heat dissipation component 2, a heat dissipation fan 3 and a lubricating oil filter assembly 4; the gearbox transmission component 1 and the lubricating oil filter assembly 4 are installed inside the gearbox, and the gearbox transmission component 1 can provide power for the lubricating oil filter assembly 4 during the transmission process. Heat dissipation ports are provided on both sides of the box plate of the gearbox to expose the inner cavity of the gearbox transmission component 1, the heat dissipation component 2 is installed on the inner cavity wall of the gearbox transmission component 1, and the heat dissipation fan 3 is installed on the outer side of the heat dissipation port of the gearbox.

[0029] In this embodiment, the transmission component 1 of the gearbox includes a transmission tube 101 , a transmission gear 102 and a reciprocating extrusion block 103 are installed on the outer side of the transmission tube 101 , and a shaft seal is installed on the side plate of the gearbox at the point where the transmission tube 101 passes through.

[0030] In this embodiment, a temperature sensor for detecting oil temperature is installed in the gearbox, and a controller is installed outside the gearbox. The controller is connected to the temperature sensor and the cooling fan respectively.

[0031] In this embodiment, the heat dissipation component 2 includes a heat pipe 201 , the outer wall of the heat pipe 201 is bonded and fixed to the inner wall of the transmission pipe 101 by a heat conductive adhesive; a plurality of heat dissipation fins 202 are installed on the inner wall of the heat pipe 201 along the circumferential direction.

[0032] In this embodiment, the heat dissipation fins 202 are in a straight plate structure, and heat dissipation holes 203 are evenly distributed on the heat dissipation fins 202 .

[0033] In this embodiment, the lubricating oil filter assembly 4 includes an oil inlet box 401, an air bag 402, an oil extraction pipe 403, a spiral heat pipe 404, an oil outlet box 405 and a debris filter plate 406. The oil inlet box 401 is equipped with an air bag 402 that can be squeezed at intervals by the reciprocating extrusion block 103. The front end of the oil inlet box 401 is equipped with an oil extraction pipe 403 with a built-in first non-return valve. The rear end of the oil inlet box 401 is connected to the oil outlet box 405 with a built-in second non-return valve via the spiral heat pipe 404. The oil outlet box 405 is equipped with a debris filter plate 406 at the oil outlet.

[0034] In this embodiment, the spiral heat-conducting pipe 404 is sleeved on the outer side of the transmission pipe 101 , and an anti-collision gap is left between the spiral heat-conducting pipe 404 and the transmission pipe 101 .

[0035] In this embodiment, the transmission tube 101 , the heat dissipation component 2 and the spiral heat-conducting tube 404 are all made of stainless steel.

[0036] A specific application of this embodiment is: when the temperature sensor detects that the oil temperature is higher than the designed maximum threshold, the cooling fan 3 is started through the external controller, and the cooling fan 3 transfers the hot air from the transmission pipe 101 in the gearbox transmission component 1 to the heat dissipation component 2 to blow away, thereby quickly cooling the gearbox from the inside; when the gearbox transmission component 1 is working, the reciprocating extrusion block 103 is used to intermittently squeeze the air bag 402 of the lubricating oil filter component 4, and the oil inlet box 401 of the lubricating oil filter component 4 absorbs oil through the oil extraction pipe 403, and the oil enters the oil outlet box 405 through the spiral heat pipe 404, and the oil outlet box 405 uses the impurity filter plate 406 to intercept impurities in the oil, thereby ensuring the performance and life of the gearbox; at the same time, the design of the spiral heat pipe 404 is convenient for assisting the transfer of the heat of the oil to the transmission pipe 101.

[0037] Embodiment 2

[0038] See also Figure 1-Figure 6 As shown, this embodiment provides a gearbox overheat protection device, including a gearbox transmission component 1, a heat dissipation component 2, a heat dissipation fan 3 and a lubricating oil filter assembly 4; the gearbox transmission component 1 and the lubricating oil filter assembly 4 are installed inside the gearbox, and the gearbox transmission component 1 can provide power for the lubricating oil filter assembly 4 during the transmission process. Heat dissipation ports are provided on both sides of the box plate of the gearbox to expose the inner cavity of the gearbox transmission component 1, the heat dissipation component 2 is installed on the inner cavity wall of the gearbox transmission component 1, and the heat dissipation fan 3 is installed on the outer side of the heat dissipation port of the gearbox.

[0039] In this embodiment, the transmission component 1 of the gearbox includes a transmission tube 101 , a transmission gear 102 and a reciprocating extrusion block 103 are installed on the outer side of the transmission tube 101 , and a shaft seal is installed on the side plate of the gearbox at the point where the transmission tube 101 passes through.

[0040] In this embodiment, a temperature sensor for detecting oil temperature is installed in the gearbox, and a controller is installed outside the gearbox. The controller is connected to the temperature sensor and the cooling fan respectively.

[0041] In this embodiment, the heat dissipation component 2 includes a heat pipe 201 , the outer wall of the heat pipe 201 is bonded and fixed to the inner wall of the transmission pipe 101 by a heat conductive adhesive; a plurality of heat dissipation fins 202 are installed on the inner wall of the heat pipe 201 along the circumferential direction.

[0042] In this embodiment, the heat dissipation fins 202 are in a spiral plate structure, and heat dissipation holes 203 are evenly distributed on the heat dissipation fins 202 .

[0043] In this embodiment, the lubricating oil filter assembly 4 includes an oil inlet box 401, an air bag 402, an oil extraction pipe 403, a spiral heat pipe 404, an oil outlet box 405 and a debris filter plate 406. The oil inlet box 401 is equipped with an air bag 402 that can be squeezed at intervals by the reciprocating extrusion block 103. The front end of the oil inlet box 401 is equipped with an oil extraction pipe 403 with a built-in first non-return valve. The rear end of the oil inlet box 401 is connected to the oil outlet box 405 with a built-in second non-return valve via the spiral heat pipe 404. The oil outlet box 405 is equipped with a debris filter plate 406 at the oil outlet.

[0044] In this embodiment, the spiral heat-conducting pipe 404 is sleeved on the outer side of the transmission pipe 101 , and an anti-collision gap is left between the spiral heat-conducting pipe 404 and the transmission pipe 101 .

[0045] In this embodiment, the transmission tube 101 , the heat dissipation component 2 and the spiral heat-conducting tube 404 are all made of stainless steel.

[0046] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A gearbox overheat protection device, characterized in that: It includes a gearbox transmission component, a heat dissipation component, a heat dissipation fan and a lubricating oil filter assembly; the gearbox transmission component and the lubricating oil filter assembly are installed inside the gearbox, the gearbox transmission component can provide power for the lubricating oil filter assembly during the transmission process, and heat dissipation ports are provided on both sides of the box plate of the gearbox to expose the inner cavity of the gearbox transmission component. The heat dissipation component is installed on the inner cavity wall of the gearbox transmission component, and the heat dissipation fan is installed on the outside of the heat dissipation port of the gearbox.

2. The gearbox overheat protection device according to claim 1, characterized in that: The transmission component of the gearbox includes a transmission pipe, and a transmission gear and a reciprocating extrusion block are installed on the outer side of the transmission pipe; a shaft seal is installed on the side plate of the gearbox at the place where the transmission pipe passes through.

3. The gearbox overheat protection device according to claim 2, characterized in that: A temperature sensor for detecting oil temperature is installed inside the gearbox, and a controller is installed outside the gearbox. The controller is connected to the temperature sensor and the cooling fan respectively.

4. The gearbox overheat protection device according to claim 3, characterized in that: The heat dissipation component comprises a heat conducting pipe, the outer wall of the heat conducting pipe is bonded and fixed to the inner wall of the transmission pipe by a heat conducting adhesive; and a plurality of heat dissipation fins are installed on the inner wall of the heat conducting pipe along the circumferential direction.

5. The gearbox overheat protection device according to claim 4, characterized in that: The heat dissipation fins are in a straight plate structure or a spiral plate structure, and heat dissipation holes are evenly distributed on the heat dissipation fins.

6. The gearbox overheat protection device according to claim 5, characterized in that: The lubricating oil filter assembly includes an oil inlet box, an air bag, an oil extraction pipe, a spiral heat conducting pipe, an oil outlet box and a debris filter plate. The oil inlet box is equipped with an air bag that can be squeezed at intervals by a reciprocating extrusion block. The front end of the oil inlet box is equipped with an oil extraction pipe with a built-in first non-return valve. The rear end of the oil inlet box is connected to an oil outlet box with a built-in second non-return valve via a spiral heat conducting pipe. The oil outlet box is equipped with a debris filter plate at the oil outlet.

7. The gearbox overheat protection device according to claim 6, characterized in that: The spiral heat-conducting pipe is sleeved on the outer side of the transmission pipe, and an anti-collision gap is left between the spiral heat-conducting pipe and the transmission pipe.

8. The gearbox overheat protection device according to claim 7, characterized in that: The transmission pipe, the heat dissipation component and the spiral heat-conducting pipe are all made of stainless steel.

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