Gearbox heat dissipation structure of hydrostatic loader

Abstract

The utility model relates to the technical field of gearbox heat dissipation structures, in particular to a gearbox heat dissipation structure of a hydrostatic loader, which comprises a radiator, a plurality of groups of fins are arranged on the surface of the radiator and distributed in a linear array, a plurality of groups of air ducts are arranged on the surface of the radiator, a fan support is arranged at one end of the radiator, and the fan support is provided with a plurality of fan blades. A motor is fixed on the surface of the fan bracket; fan blades are fixed on a transmission shaft of the motor; the fan has the beneficial effects that air in the direction, away from the radiator, of the fan blades is blown to the radiator in an accelerated mode through rotation of the fan blades, the air flowing at high speed is blown into the multiple sets of air channels and rapidly leaves the air channels from the side, away from the fan support, of the radiator, and therefore heat on the surface of the radiator is rapidly taken away from the radiator; and the flow speed of air around the radiator is accelerated, so that the heat dissipation efficiency of the radiator is improved, and the heat dissipation efficiency of the gearbox is also improved due to the improvement of the heat dissipation efficiency of the radiator.

Description

Technical Field

[0001] The utility model relates to the technical field of gearbox heat dissipation structures, in particular to a gearbox heat dissipation structure of a hydrostatic loader. Background Art

[0002] The hydrostatic loader is a type of mechanical equipment widely used in the engineering field. It is mainly composed of an engine, hydraulic system, steering system, transmission system, wheels and bucket. The gearbox is an important mechanism in the transmission system. The gearbox changes the transmission ratio to enable the engine to operate in a high-power, low-fuel consumption range to adapt to different driving resistances and driving conditions, while enabling the vehicle to obtain different traction and driving speeds. However, the gearbox of the hydrostatic loader is very heavy, so the gears of the gearbox have to withstand great force when engaging, which causes the gearbox temperature to be very high.

[0003] Existing patent document CN217825833U discloses a heat dissipation structure for a transmission housing of a hydrostatic loader, comprising: a first housing and a second housing; a heat dissipation unit disposed on the surface of the first housing; and heat dissipation angles disposed on the outer side walls of the first and second housings. The utility model solves the technical problem that existing transmissions for hydrostatic loaders lack an external heat dissipation system, cannot provide good heat dissipation capacity, and reduce the service life of the transmission. Existing hydrostatic loaders cannot meet the requirement that the oil temperature of the transmission does not exceed 120°C when operating in various working conditions at an ambient temperature of 45°C. By installing an external heat dissipation system for the transmission in the hydrostatic loader, the transmission is provided with good heat dissipation capacity, which increases the service life of the transmission and meets the requirement that the oil temperature of the transmission does not exceed 120°C when operating in various working conditions at an ambient temperature of 45°C.

[0004] However, the radiator in the prior art is still a completely passive heat dissipation structure, relying on the natural flow of air to take away the temperature of the radiator surface. The hydrostatic loader has a very slow travel speed and is often stagnant for a long time during operation, which makes the air flow rate on the radiator surface very slow. The hot air accumulates near the radiator, causing the heat on the radiator surface to dissipate very slowly, making it impossible to dissipate the heat for the gearbox through the radiator. Utility Model Content

[0005] The purpose of the utility model is to provide a transmission heat dissipation structure of a hydrostatic loader to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a gearbox heat dissipation structure for a hydrostatic loader, comprising: a radiator, a surface of which is provided with a plurality of groups of fins, the plurality of groups of fins being distributed in a linear array, a surface of the radiator being provided with a plurality of groups of air ducts, a fan bracket being provided at one end of the radiator, a motor being fixed on the surface of the fan bracket, and fan blades being fixed on the drive shaft of the motor.

[0007] Preferably, several groups of the air ducts are distributed in an array, and the opening direction of the air ducts is perpendicular to the fan blades.

[0008] Preferably, a mounting plate is fixed to the top of the fan bracket, and the mounting plate is an L-shaped plate structure, and the vertical plate of the mounting plate is movably inserted between the two groups of fins close to the fan bracket.

[0009] Preferably, a first rubber pad is fixed on the vertical plate of the mounting plate, and a large-area rectangular hollow structure is provided on the surface of the mounting plate.

[0010] Preferably, the bottom ends of the two symmetrical sides of the fan bracket are provided with pull rod installation grooves, the pull rod installation grooves are circular groove structures, the opening diameter of the pull rod installation grooves set on the surface of the fan bracket is smaller than the groove body diameter of the pull rod installation grooves, and a pull rod is movably inserted in the pull rod installation grooves.

[0011] Preferably, the pull rod is a circular rod structure, and a clamp is fixed to one end of the pull rod extending from the pull rod mounting slot, a second rubber pad is fixed on the surface of the clamp, and the second rubber pad rests on the surface of a group of fins closest to the fan bracket.

[0012] Preferably, a spring plate is fixed to one end of the pull rod extending into the pull rod installation slot, and a clamping spring is sleeved on the surface of the pull rod, one end of the clamping spring rests on the surface of the spring plate, and the other end of the clamping spring rests on the inner wall of the pull rod installation slot.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The transmission heat dissipation structure of the hydrostatic loader proposed by the present invention is that the heat of the transmission is quickly transferred to the surface of the radiator, and several groups of fins increase the heat dissipation area of ​​the radiator. The fan blades of the drive shaft of the motor fixed on the surface of the fan bracket rotate at high speed. The rotation of the fan blades accelerates the air in the direction away from the radiator to the radiator, and the high-speed flowing air is blown into several groups of air ducts, and then quickly leaves the air duct from the side of the radiator away from the fan bracket, thereby quickly taking the heat on the radiator surface away from the radiator. With the continuous rotation of the fan blades, the air flow rate around the radiator is accelerated, thereby increasing the heat dissipation efficiency of the radiator. The increase in the heat dissipation efficiency of the radiator also increases the heat dissipation efficiency of the transmission gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure at center A;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the tie rod installation groove;

[0019] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B in the middle.

[0020] In the figure: radiator 1, fin 2, fan bracket 3, motor 4, fan blade 5, mounting plate 6, first rubber pad 7, pull rod mounting slot 8, pull rod 9, clamping plate 10, second rubber pad 11, spring plate 12, clamping spring 13, air duct 14. DETAILED DESCRIPTION

[0021] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit 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.

[0022] Example 1: Please refer to Figures 1 to 5 The utility model provides a technical solution: a gearbox heat dissipation structure of a hydrostatic loader, comprising: a radiator 1, a plurality of groups of fins 2 are provided on the surface of the radiator 1, and the plurality of groups of fins 2 are distributed in a linear array, a plurality of groups of air ducts 14 are opened on the surface of the radiator 1, a fan bracket 3 is provided at one end of the radiator 1, a motor 4 is fixed on the surface of the fan bracket 3, a fan blade 5 is fixed on the transmission shaft of the motor 4, a plurality of groups of air ducts 14 are distributed in an array, and the opening direction of the air duct 14 is perpendicular to the fan blade 5.

[0023] During actual use, the heat of the gearbox is quickly transferred to the surface of the radiator 1. Several groups of fins 2 increase the heat dissipation area of ​​the radiator 1. The fan blades 5 of the drive shaft of the motor 4 fixed on the surface of the fan bracket 3 rotate at a high speed. The rotation of the fan blades 5 accelerates the air in the direction of the fan blades 5 away from the radiator 1 to blow toward the radiator 1. The high-speed flowing air is blown into several groups of air ducts 14, and then quickly leaves the air ducts 14 from the side of the radiator 1 away from the fan bracket 3, thereby quickly taking the heat on the surface of the radiator 1 away from the radiator 1. Under the continuous rotation of the fan blades 5, the air flow rate around the radiator 1 is accelerated, thereby increasing the heat dissipation efficiency of the radiator 1. The increase in the heat dissipation efficiency of the radiator 1 also increases the heat dissipation efficiency of the gearbox.

[0024] Example 2: On the basis of Example 1, in order to realize the quick disassembly and assembly of the fan bracket 3, a mounting plate 6 is fixed on the top of the fan bracket 3, and the mounting plate 6 is an "L"-shaped plate structure. The vertical plate of the mounting plate 6 is movably inserted between the two groups of fins 2 close to the fan bracket 3, and a first rubber pad 7 is fixed on the vertical plate of the mounting plate 6. A large-area rectangular hollow structure is provided on the surface of the mounting plate 6. The bottom ends of the two symmetrical sides of the fan bracket 3 are provided with a pull rod mounting groove 8. The pull rod mounting groove 8 is a circular groove structure, and the opening diameter of the pull rod mounting groove 8 set on the surface of the fan bracket 3 is smaller than the pull rod mounting groove 8. The diameter of the rod mounting slot 8, a pull rod 9 is movably inserted in the pull rod mounting slot 8, the pull rod 9 has a circular rod body structure, and the end of the pull rod 9 extending out of the pull rod mounting slot 8 is fixed with a splint 10, and a second rubber pad 11 is fixed on the surface of the splint 10, and the second rubber pad 11 is against the surface of a group of fins 2 closest to the fan bracket 3, and the end of the pull rod 9 extending into the pull rod mounting slot 8 is fixed with a spring plate 12, and a clamping spring 13 is sleeved on the surface of the pull rod 9, one end of the clamping spring 13 is against the surface of the spring plate 12, and the other end of the clamping spring 13 is against the inner wall of the slot of the pull rod mounting slot 8.

[0025] During the long-term use of the fan blades 5, dust will gradually be adsorbed on the surface of the fan blades 5, which will cause the acceleration effect of the fan blades 5 on the air flow to decrease. Therefore, the fan bracket 3 should be removed from the surface of the radiator 1 to clean the fan blades 5. After cleaning, the fan bracket 3 should be installed back on the radiator 1; when it is necessary to remove the fan bracket 3 from the radiator 1, just pinch the two sets of plywood 10 at the same time and pull the two sets of plywood 10 away from each other to make the second rubber pad 11 move away from the surface of the fin 2, and then lift the fan bracket 3 upwards to make the vertical plate of the mounting plate 6 withdraw from between the two sets of fins 2, and the fan bracket 3 can be quickly removed from the radiator 1; when it is necessary to install the fan bracket 3 back on the surface of the radiator 1, pinch the two sets of plywood 10 at the same time again and pull the two sets of plywood 10 away from each other. The movement of the plywood 10 will pull the pull rod 9 away from the pull rod The spring plate 12 moves the two sets of clamping plates 10 toward the radiator 1 through the pull rod 9 until the second rubber pad 11 is pressed against the surface of the fin 2. The mounting plate 6 mounts the top end of the fan bracket 3 on the radiator 1, and the two sets of clamping plates 10 clamp the bottom end of the fan bracket 3 on the radiator 1, thereby realizing the installation of the fan bracket 3 back on the radiator 1.

[0026] In actual use, the heat of the gearbox is quickly transferred to the surface of the radiator 1. Several groups of fins 2 increase the heat dissipation area of ​​the radiator 1. The fan blades 5 of the drive shaft of the motor 4 fixed on the surface of the fan bracket 3 rotate at high speed. The rotation of the fan blades 5 accelerates the air in the direction away from the radiator 1 to the radiator 1. The high-speed flowing air is blown into several groups of air ducts 14 and quickly leaves the air ducts 14 from the side of the radiator 1 away from the fan bracket 3, thereby quickly taking the heat on the surface of the radiator 1 away from the radiator 1. Under the continuous rotation of the fan blades 5, the air flow rate around the radiator 1 is accelerated. Thereby, the heat dissipation efficiency of the radiator 1 is increased, and the increase in the heat dissipation efficiency of the radiator 1 also increases the heat dissipation efficiency of the gearbox; during the long-term use of the fan blades 5, dust will gradually be adsorbed on the surface of the fan blades 5, which will cause the acceleration effect of the fan blades 5 on the air flow to decrease, so the fan bracket 3 should be removed from the surface of the radiator 1 to clean the fan blades 5, and then the fan bracket 3 should be installed back on the radiator 1 after cleaning; when it is necessary to remove the fan bracket 3 from the radiator 1, just pinch the two sets of clamps 10 at the same time and pull the two sets of clamps 10 away from each other, so that the second rubber pad 11 is removed from the fins 2 The fan bracket 3 is moved away from the surface of the radiator 1, and then the fan bracket 3 is lifted upwards to withdraw the vertical plate of the mounting plate 6 from between the two sets of fins 2, and the fan bracket 3 can be quickly removed from the radiator 1; when the fan bracket 3 needs to be installed back on the surface of the radiator 1, the two sets of clamping plates 10 are pinched at the same time again and the two sets of clamping plates 10 are pulled away from each other. The movement of the clamping plates 10 pulls the pull rod 9 out of the pull rod mounting groove 8, and the movement of the pull rod mounting groove 8 causes the spring plate 12 to move in the same direction. The movement of the spring plate 12 compresses the clamping spring 13, and then the vertical plate of the mounting plate 6 is inserted between the two sets of fins 2 closest to the end of the radiator 1 During this time, the first rubber pad 7 is pressed against the surface of the fin 2. At this time, the two sets of clamps 10 have moved to both sides of the radiator 1. Then the clamps 10 are slowly released, and the clamping spring 13 pushes the spring plate 12 toward the pull rod mounting slot 8 under its own elasticity. The spring plate 12 moves the two sets of clamps 10 toward the radiator 1 through the pull rod 9 until the second rubber pad 11 is pressed against the surface of the fin 2. The mounting plate 6 mounts the top end of the fan bracket 3 on the radiator 1, and the two sets of clamps 10 clamp the bottom end of the fan bracket 3 on the radiator 1, thereby realizing the installation of the fan bracket 3 back to the radiator 1.

[0027] 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 transmission heat dissipation structure for a hydrostatic loader, comprising: A radiator (1) is provided with a plurality of groups of fins (2) on the surface of the radiator (1), and the plurality of groups of fins (2) are distributed in a linear array. The radiator (1) is characterized in that a plurality of groups of air ducts (14) are opened on the surface of the radiator (1), a fan bracket (3) is provided at one end of the radiator (1), a motor (4) is fixed on the surface of the fan bracket (3), and a fan blade (5) is fixed on the transmission shaft of the motor (4).

2. The transmission heat dissipation structure of a hydrostatic loader according to claim 1, characterized in that: Several groups of the air ducts (14) are distributed in an array, and the opening direction of the air ducts (14) is perpendicular to the fan blades (5).

3. The transmission heat dissipation structure of a hydrostatic loader according to claim 1, characterized in that: A mounting plate (6) is fixed to the top of the fan bracket (3), and the mounting plate (6) is an "L"-shaped plate structure. The vertical plate of the mounting plate (6) is movably inserted between two groups of fins (2) close to the fan bracket (3).

4. The transmission heat dissipation structure of a hydrostatic loader according to claim 3, characterized in that: A first rubber pad (7) is fixed on the vertical plate of the mounting plate (6), and a rectangular hollow structure is provided on the surface of the mounting plate (6).

5. The transmission heat dissipation structure of a hydrostatic loader according to claim 1, characterized in that: The bottom ends of the two symmetrical sides of the fan bracket (3) are each provided with a pull rod installation groove (8), the pull rod installation groove (8) is a circular groove structure, the opening diameter of the pull rod installation groove (8) set on the surface of the fan bracket (3) is smaller than the groove diameter of the pull rod installation groove (8), and a pull rod (9) is movably inserted in the pull rod installation groove (8).

6. The transmission heat dissipation structure of a hydrostatic loader according to claim 5, characterized in that: The pull rod (9) is a circular rod structure, and a clamping plate (10) is fixed to one end of the pull rod (9) extending out of the pull rod installation slot (8), and a second rubber pad (11) is fixed on the surface of the clamping plate (10), and the second rubber pad (11) is against the surface of a group of fins (2) closest to the fan bracket (3).

7. The transmission heat dissipation structure of a hydrostatic loader according to claim 6, characterized in that: A spring plate (12) is fixed to one end of the pull rod (9) that extends into the pull rod installation groove (8), and a clamping spring (13) is sleeved on the surface of the pull rod (9), one end of the clamping spring (13) rests on the surface of the spring plate (12), and the other end of the clamping spring (13) rests on the inner wall of the pull rod installation groove (8).

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