Hydraulic oil heat dissipation structure of diesel fork lift truck

Abstract

The utility model discloses a diesel fork lift truck hydraulic oil heat dissipation structure which comprises a hydraulic oil radiator installed in a frame of a diesel fork lift truck. The side sealing plate and the cover plate are connected and mounted on the frame together and cover the hydraulic oil radiator; two ends of the oil inlet rubber pipe are respectively connected to the hydraulic oil radiator and a multi-way valve oil return port of the diesel fork lift truck; two ends of the oil return rubber pipe are respectively connected to the hydraulic oil radiator and a hydraulic oil tank of the diesel fork lift truck; the pipe clamps are fixed on the diesel fork lift truck and are connected with the oil inlet rubber pipe and the oil return rubber pipe; and hydraulic oil circulates among the multi-way valve oil return port, the oil inlet rubber pipe, the oil return rubber pipe and the hydraulic oil tank after being cooled by the hydraulic oil radiator. The idle position of the 5-10-ton diesel fork lift truck is fully utilized, the hydraulic oil heat dissipation device is arranged at low cost through ingenious design, and on the premise that an original truck heat dissipation system of the fork lift truck is not affected, and under the condition that safety and attractiveness are guaranteed at low manufacturing cost, effective heat dissipation is conducted on hydraulic oil.

Description

Technical Field

[0001] The utility model relates to the technical field of internal combustion forklifts, in particular to a hydraulic oil heat dissipation structure of an internal combustion forklift. Background Art

[0002] For casting, forging, smelting and other enterprises, since some processes require forklifts to work in front of the furnace for a long time, the ambient temperature is high under this working condition. If the hydraulic oil of the forklift cannot be effectively cooled, the temperature of the hydraulic oil will rise sharply, and the seals of the hydraulic system parts will be deformed and damaged due to the high temperature, resulting in the forklift oil leakage and other faults. At present, the 5-10 ton internal combustion forklifts in the industry basically do not have independent hydraulic oil cooling devices. The hydraulic oil relies on natural cooling. If the ambient temperature is too high, the natural cooling efficiency of the hydraulic oil is low and it cannot meet the effective heat dissipation of the hydraulic oil. Therefore, it is necessary to use the idle position of the 5-10 ton internal combustion forklift to effectively dissipate the hydraulic oil without affecting the performance of the original vehicle's cooling system, reduce the failure of the hydraulic system seals damaged due to insufficient heat dissipation of the hydraulic oil under some high ambient temperature conditions, improve the adaptability of the forklift working conditions, and improve work efficiency. Utility Model Content

[0003] The technical problem solved by the utility model is that 5-10 ton internal combustion forklifts basically do not have independent hydraulic oil cooling devices, and the hydraulic oil is cooled naturally. If the ambient temperature is too high, the natural cooling efficiency of the hydraulic oil is low, and the effective heat dissipation of the hydraulic oil cannot be met.

[0004] In order to solve the above technical problems, the technical solution of the utility model provides a hydraulic oil heat dissipation structure for an internal combustion forklift, which includes:

[0005] Hydraulic oil radiator, installed in the frame of internal combustion forklifts;

[0006] A side sealing plate and a cover plate, wherein the side sealing plate is connected to the cover plate and installed together with the cover plate on the vehicle frame and covers the hydraulic oil radiator;

[0007] An oil inlet hose, both ends of which are connected to the hydraulic oil radiator and the oil return port of the multi-way valve of the internal combustion forklift respectively;

[0008] An oil return hose, both ends of which are connected to the hydraulic oil radiator and the hydraulic oil tank of the internal combustion forklift respectively;

[0009] A plurality of pipe clamps, fixed on the internal combustion forklift and connected to the oil inlet hose and the oil return hose;

[0010] The hydraulic oil is circulated among the oil return port of the multi-way valve, the oil inlet hose, the oil return hose and the hydraulic oil tank after being cooled by the hydraulic oil radiator.

[0011] Optionally, the hydraulic oil radiator includes a mounting frame, an electronic fan, a control box and a temperature sensor, the mounting frame is fixed on the boarding pedal of an internal combustion forklift, the electronic fan is fixed in the mounting frame, the control box is arranged on the side of the mounting frame and is electrically connected to the electronic fan through wires, and the temperature sensor is installed in the mounting frame and is electrically connected to the control box through wires.

[0012] Optionally, the side sealing plate is fixed on the boarding pedal and covers the side and top of the hydraulic oil radiator, and the side sealing plate is provided with a maintenance hole for exposing the control box.

[0013] Optionally, after the temperature sensor detects that the hydraulic oil temperature reaches a set temperature, it sends a signal to the control box, and the control box controls the electronic fan to operate.

[0014] Optionally, the cover plate is connected to the side sealing plate by fasteners and covers the surface of the hydraulic oil radiator facing the outside of the internal combustion forklift.

[0015] Optionally, the side sealing plate and the cover plate are combined to form a protective cavity covering the hydraulic oil radiator.

[0016] Optionally, the cover plate is also fixedly connected to the boarding pedal by fasteners, and the shape of the portion not connected to the side sealing plate matches the frame structure.

[0017] Optionally, a plurality of heat dissipation waist-shaped holes are equidistantly provided on the surface of the cover plate.

[0018] Optionally, the side sealing plate is a bent sheet metal part with an L-shaped structure.

[0019] Optionally, the cover plate is a sheet metal part with a trapezoidal structure.

[0020] The beneficial effects of the technical solution of the utility model are:

[0021] The utility model makes full use of the idle space of 5-10 ton internal combustion forklifts, and sets a hydraulic oil cooling device at a relatively low cost through ingenious design. Under the premise that the original cooling system of the forklift is not affected, and at the same time, the hydraulic oil is effectively cooled while ensuring safety and aesthetics at a relatively low manufacturing cost, thereby reducing the failure of hydraulic system seals damaged due to insufficient heat dissipation of the hydraulic oil under some high ambient temperature conditions, thereby maximizing the adaptability of the forklift to working conditions and improving the user experience. At the same time, after the side sealing plate and the cover plate are assembled, the hydraulic oil radiator is effectively protected, and the service life of the hydraulic oil cooling device is effectively extended. In addition, the side of the side sealing plate of the hydraulic oil cooling device has an opening to facilitate the maintenance and inspection of the hydraulic oil radiator control box, and an array of cooling holes is reserved on the cover plate for effective heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the installation position of the hydraulic oil radiator in the embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the installation positions of the oil inlet hose and the oil return hose in the embodiment of the utility model;

[0024] Figure 3 This is a structural schematic diagram of a hydraulic oil radiator in an embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the hydraulic principle of the hydraulic oil radiator in the embodiment of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] See also Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of a hydraulic oil heat dissipation structure for an internal combustion forklift is shown, which includes a hydraulic oil radiator 4, which is installed in a frame 1 of the internal combustion forklift; a side sealing plate 2 and a cover plate 3, the side sealing plate 2 is connected to the cover plate 3 and is installed together on the frame 1 and covers the hydraulic oil radiator 4; an oil inlet hose 6, both ends of which are respectively connected to the hydraulic oil radiator 4 and the oil return port of the multi-way valve of the internal combustion forklift; an oil return hose 5, both ends of which are respectively connected to the hydraulic oil radiator 4 and the hydraulic oil tank of the internal combustion forklift; a plurality of pipe clamps 7, which are fixed on the internal combustion forklift and connected to the oil inlet hose 6 and the oil return hose 5; the hydraulic oil is cooled by the hydraulic oil radiator 4 and then circulates between the oil return port of the multi-way valve, the oil inlet hose 6, the oil return hose 5 and the hydraulic oil tank.

[0032] In this embodiment, see Figure 3 As shown, the hydraulic oil radiator 4 includes a mounting frame 44, an electronic fan 41, a control box 42 and a temperature sensor 43. The mounting frame 44 is fixed on the boarding pedal 11 of the internal combustion forklift, the electronic fan 41 is fixed in the mounting frame 44, the control box 42 is arranged on the side of the mounting frame 44 and is electrically connected to the electronic fan 41 through wires, and the temperature sensor 43 is installed in the mounting frame 44 and is electrically connected to the control box 42 through wires.

[0033] In this embodiment, the side sealing plate 2 is fixed on the boarding pedal 11 and covers the side and top of the hydraulic oil radiator 4. The side sealing plate 2 is provided with a maintenance hole 21 for exposing the control box.

[0034] In this embodiment, after the temperature sensor 43 detects that the temperature of the hydraulic oil reaches the set temperature, it sends a signal to the control box 42, and the control box 42 controls the electronic fan 41 to work.

[0035] In this embodiment, the cover plate 3 is connected to the side sealing plate 2 by fasteners (not shown, and may be bolts or other parts) and covers the surface of the hydraulic oil radiator 4 facing the outside of the internal combustion forklift.

[0036] In this embodiment, the side sealing plate 2 and the cover plate 3 are combined to form a protective cavity that covers the hydraulic oil radiator 4 .

[0037] In this embodiment, the cover plate 3 is also fixedly connected to the boarding pedal 11 by fasteners, and the shape of the portion not connected to the side sealing plate 2 matches the structure of the frame 1 .

[0038] In this embodiment, a plurality of heat dissipation waist-shaped holes 31 are equidistantly provided on the surface of the cover plate 3 , the side sealing plate 2 is a bent sheet metal part with an L-shaped structure, and the cover plate 3 is a sheet metal part with a trapezoidal structure.

[0039] The characteristics and functions of the present invention can be further understood through the following description.

[0040] See also Figure 1-4 , a 5-10 ton internal combustion forklift hydraulic oil cooling device is described by way of example, the hydraulic oil cooling device comprises a side sealing plate 2, a cover plate 3, an oil inlet hose 6, a hydraulic oil radiator 4, an oil return hose 5 and a pipe clamp 7; wherein the hydraulic oil radiator 4 is composed of an electronic fan 41, a control box 42 and a temperature sensor 43, wherein the hydraulic oil radiator 4 is fixed on the vehicle pedal 11 of the frame 1, one end of the oil inlet hose 6 is connected to the hydraulic oil radiator 4, and the other end is connected to the oil return port of the multi-way valve, one end of the oil return hose 5 is connected to the hydraulic oil radiator 4, and the other end is connected to the hydraulic oil tank, the oil inlet hose 6 and the oil return hose 5 are fixed to the frame 1 with a pipe clamp 7, the side sealing plate 2 is assembled on the vehicle pedal 11 of the frame 1, the cover plate 3 is assembled on the side sealing plate 2 and the frame 11, the side sealing plate 2 and the cover plate 3 form a protective cavity for protecting the hydraulic oil radiator 4, and effectively extending the service life of the cooling device.

[0041] The side sealing plate 2 adopts an L-shaped plate structure, which is used to effectively protect the hydraulic oil radiator 4. A maintenance hole 21 with a diameter of 120 mm is left on the side, which is more convenient for the maintenance and inspection of the hydraulic oil radiator control box.

[0042] The cover plate 3 adopts a trapezoidal plate structure, which is simple and beautiful in appearance, and at the same time effectively protects the hydraulic oil radiator 4. The cover plate 3 reserves a 10x30 array of heat dissipation waist-shaped holes 31, which effectively protects the hydraulic oil radiator 4 without affecting heat dissipation.

[0043] The hydraulic oil radiator 4 adopts an electronic fan intelligent control system. The hydraulic oil radiator 4 integrates a temperature sensor 43. When the hydraulic oil temperature reaches a set temperature, the cooling system starts, thereby improving work efficiency and saving energy and reducing consumption.

[0044] In summary, the structural design of the hydraulic oil cooling device for a 5-10 ton internal combustion forklift of the utility model is ingenious, making full use of the idle position of the 5-10 ton internal combustion forklift, under the premise of not affecting the original cooling system of the forklift, while ensuring safety and aesthetics at a relatively low manufacturing cost, the hydraulic oil is effectively cooled, and the failure of hydraulic system seal damage caused by insufficient heat dissipation of the hydraulic oil under some high ambient temperature conditions is reduced, thereby maximizing the adaptability of the forklift to working conditions and improving the user experience. At the same time, after the side sealing plate and the cover plate are assembled, the hydraulic oil radiator is effectively protected, and the service life of the hydraulic oil cooling device is effectively extended. In addition, the side of the side sealing plate of the hydraulic oil cooling device is provided with an opening to facilitate the maintenance and inspection of the hydraulic oil radiator control box, and an array of cooling holes is reserved on the cover plate for effective heat dissipation.

[0045] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic oil heat dissipation structure for an internal combustion forklift, characterized in that: include: Hydraulic oil radiator, installed in the frame of internal combustion forklifts; A side sealing plate and a cover plate, wherein the side sealing plate is connected to the cover plate and installed together with the cover plate on the vehicle frame and covers the hydraulic oil radiator; An oil inlet hose, both ends of which are connected to the hydraulic oil radiator and the oil return port of the multi-way valve of the internal combustion forklift respectively; An oil return hose, both ends of which are connected to the hydraulic oil radiator and the hydraulic oil tank of the internal combustion forklift respectively; A plurality of pipe clamps, fixed on the internal combustion forklift and connected to the oil inlet hose and the oil return hose; The hydraulic oil is circulated among the oil return port of the multi-way valve, the oil inlet hose, the oil return hose and the hydraulic oil tank after being cooled by the hydraulic oil radiator.

2. The internal combustion forklift hydraulic oil heat dissipation structure according to claim 1, characterized in that: The hydraulic oil radiator includes a mounting frame, an electronic fan, a control box and a temperature sensor. The mounting frame is fixed on the boarding pedal of the internal combustion forklift, the electronic fan is fixed in the mounting frame, the control box is arranged on the side of the mounting frame and is electrically connected to the electronic fan through wires, and the temperature sensor is installed in the mounting frame and is electrically connected to the control box through wires.

3. The internal combustion forklift hydraulic oil heat dissipation structure according to claim 2, characterized in that: The side sealing plate is fixed on the boarding pedal and covers the side and top of the hydraulic oil radiator. The side sealing plate is provided with a maintenance hole for exposing the control box.

4. The internal combustion forklift hydraulic oil heat dissipation structure according to claim 3, characterized in that: After the temperature sensor detects that the temperature of the hydraulic oil reaches the set temperature, it sends a signal to the control box, and the control box controls the operation of the electronic fan.

5. The internal combustion forklift hydraulic oil heat dissipation structure according to claim 4, characterized in that: The cover plate is connected to the side sealing plate through fasteners and covers the surface of the hydraulic oil radiator facing the outer side of the internal combustion forklift.

6. The internal combustion forklift hydraulic oil heat dissipation structure according to claim 5, characterized in that: The side sealing plate and the cover plate are combined to form a protective cavity covering the hydraulic oil radiator.

7. The internal combustion forklift hydraulic oil heat dissipation structure according to claim 6, characterized in that: The cover plate is also fixedly connected to the boarding pedal by fasteners, and the shape of the portion not connected to the side sealing plate matches the frame structure.

8. The internal combustion forklift hydraulic oil heat dissipation structure according to claim 7, characterized in that: A plurality of heat dissipation waist-shaped holes are equidistantly arranged on the surface of the cover plate.

9. The internal combustion forklift hydraulic oil heat dissipation structure according to claim 8, characterized in that: The side sealing plate is a bent sheet metal part with an L-shaped structure.

10. The internal combustion forklift hydraulic oil heat dissipation structure according to claim 9, characterized in that: The cover plate is a sheet metal part with a trapezoidal structure.

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