Excavator gearbox with protective structure

Abstract

The utility model relates to the field of gear boxes, in particular to an excavator gear box with a protection structure, which comprises a gear box body, a ventilation cavity is arranged on the left side in the gear box body, a heat dissipation cavity is arranged on the right side in the gear box body, and dustproof filter screen plates are arranged in the ventilation cavity and the heat dissipation cavity. The upper ends of the dustproof filter screen plates extend to the outer side of the gearbox body and are fixedly connected with sealing connecting plates, locking inserting grooves are formed in the positions, located at the front ends and the rear ends of the sealing connecting plates, of the inner sides of the ventilation cavities and the heat dissipation cavities, and movable cavities are formed in the front ends and the rear ends of the sealing connecting plates. The dustproof filter screen plate is used for blocking dust, the connecting pull rod is pulled to drive the locking insertion rod to be away from the locking insertion groove, locking of the sealing connecting plate is relieved, the dustproof filter screen plate can be conveniently taken out to be cleaned, the filtering performance of the dustproof filter screen plate is guaranteed, and the filtering performance of the dust protection structure is prevented from being affected. And adverse effects of dust on internal mechanical parts are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box field especially relates to excavator gear box with protection structure. BACKGROUND

[0002] The excavator gear box is an important component in the transmission system of the excavator, and its main function is to transmit the power of the engine to other working devices to ensure the normal operation of the excavator. The excavator gear box usually contains multiple precisely machined gears. These gears are arranged according to a specific transmission ratio and achieve power transmission and speed conversion through meshing. The gear box body is designed to be strong and can withstand the huge impact force and torque generated by the excavator under complex working conditions. The inner part of the box body is divided into multiple chambers to accommodate gears and bearings with different functions to achieve power distribution and transmission.

[0003] For example, patent number (CN213870954U) discloses a special gear box for railway excavator, relating to the technical field of gear box. The technical points are: the device includes a gear box body, and a plurality of damping mechanisms are fixedly connected to the gear box body. The damping mechanism includes a damping leg, a buffer pad, and a spring. The damping mechanism is fixedly connected to the damping box body. An oil injection hole is formed at the end of the gear box body away from the ground, and a lifting ring is fixedly connected to the specific position. A heat dissipation fan is embedded on one side of the damping box body, and soundproof boards are fixedly connected to the outer side wall. The damping mechanism set by the utility model cooperates with the spring, damping leg, and buffer pad to greatly reduce the adverse effects of vibration during gear box operation under working conditions, improve the service life of the gear box, and effectively reduce the heat and noise generated by the gear box under working conditions through the setting of the heat dissipation fan and the soundproof board, optimize the working environment, and improve the working efficiency.

[0004] Currently, when the excavator gear box is in use, due to the limitations of the protective structure of the gear box, dust easily invades the interior from the gaps such as the heat dissipation groove holes of the gear box, causing adverse effects on the internal mechanical components, which is not conducive to prolonging the service life of the excavator gear box.

[0005] Therefore, in view of the above problems that dust easily invades the interior from the gaps such as the heat dissipation groove holes of the gear box during the use of the gear box, causing adverse effects on the internal mechanical components, which is not conducive to prolonging the service life of the excavator gear box, a excavator gear box with a protective structure can be designed. UTILITY MODEL CONTENTS

[0006] In order to overcome the problem that dust easily invades the interior from the gaps such as the heat dissipation groove holes of the gear box during the use of the gear box, causing adverse effects on the internal mechanical components, which is not conducive to prolonging the service life of the excavator gear box.

[0007] The utility model discloses a technical scheme for an excavator gear box with a protection structure, comprising a gear box body, a ventilation cavity is formed in the left side of the gear box body, a heat dissipation cavity is formed in the right side of the gear box body, a dustproof filter screen is arranged in the ventilation cavity and the heat dissipation cavity, a sealing connecting plate is fixedly connected to the upper end of the dustproof filter screen and extends to the outside of the gear box body, locking insertion slots are formed in the front and back ends of the sealing connecting plate on the inner side of the ventilation cavity and the heat dissipation cavity, movable cavities are formed in the front and back ends of the sealing connecting plate, a return spring is fixedly installed in the movable cavity, a locking insertion rod is fixedly installed on the return spring, a connecting pull rod is fixedly installed on the surface of the locking insertion rod, ventilation grooves are formed in the left and right ends of the ventilation cavity, a connecting groove is formed in the left end of the heat dissipation cavity, an installation groove is formed in the right end of the heat dissipation cavity, a unit fan is arranged in the installation groove, and a temperature sensor is fixedly installed on the side of the installation groove in the heat dissipation cavity.

[0008] Preferably, the mounting plate can fix the gear box body in the excavator, the dustproof filter screen can block dust and impurities from entering the gear box body through the gaps of the ventilation and heat dissipation grooves, the connecting pull rod can pull the locking insertion rod away from the locking insertion slot to release the locking of the sealing connecting plate, which facilitates the cleaning of the dustproof filter screen, ensures the filtering performance of the dustproof filter screen, the temperature sensor can monitor the temperature state of the gear box body in real time, the unit fan drives air flow for heat dissipation, the ventilation cavity can clamp the dustproof filter screen, and the ventilation grooves facilitate air intake and heat exchange, the heat dissipation cavity can clamp the dustproof filter screen, and the installation groove and the connecting groove facilitate air outlet and heat dissipation.

[0009] Preferably, the ventilation cavity and the heat dissipation cavity are connected with the dustproof filter screen in a clamping manner, and the sealing connecting plate is clamped with the gear box body.

[0010] Preferably, the locking insertion rod is connected with the movable cavity in a sliding manner, and the locking insertion rod is connected with the locking insertion slot in a pin connection manner.

[0011] Preferably, the upper end of the connecting pull rod extends to the outside of the movable cavity, and the surface of the connecting pull rod is connected with the movable cavity in a sliding manner, and a pull handle is fixedly installed on the sealing connecting plate.

[0012] Preferably, the upper end of the gear box body is detachably connected with a gear box cover, and a handle is fixedly installed on the upper end of the gear box cover.

[0013] Preferably, the ventilation grooves are distributed at equal intervals, the unit fan is electrically connected with the temperature sensor, and mounting plates are fixedly installed on the lower sides of the left and right ends of the gear box body.

[0014] Preferably, the unit fan is detachably connected with the installation groove, and a protective net is detachably connected with the right side of the unit fan in the installation groove.

[0015] The excavator gear box with the protection structure has the beneficial effects that:

[0016] The excavator gear box with the protection structure has the beneficial effects that: the dustproof filter screen plate is blocked by the dustproof filter screen plate, the locking insertion rod is driven away from the locking insertion slot by pulling the connecting pull rod, the locking of the sealing connecting plate is released, the dustproof filter screen plate is convenient to take out and clean, the filtering performance of the dustproof filter screen plate is guaranteed, the filtering performance of the dustproof structure is avoided from being affected, the adverse effects of dust on the internal mechanical parts are prevented, the service life of the excavator gear box is prolonged, the temperature state of the gear box body is monitored in real time by the temperature sensor, when the temperature of the box body is too high, the air flow is driven by the control unit fan, the normal temperature air enters the inside from the ventilation cavity, heat exchange is carried out, and the air carrying heat is discharged from the heat dissipation cavity, automatic flexible heat dissipation and cooling functions are realized, and the convenience of use of the excavator gear box is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The excavator gear box with the protection structure of the utility model is shown in the three-dimensional structure diagram Figure 1 ;

[0018] Figure 2 The excavator gear box with the protection structure of the utility model is shown in the three-dimensional structure diagram Figure 2 ;

[0019] Figure 3 The movable cavity three-dimensional structure diagram of the utility model is shown

[0020] Figure 4 The ventilation cavity three-dimensional structure diagram of the utility model is shown

[0021] Figure 5 The heat dissipation cavity three-dimensional structure diagram of the utility model is shown.

[0022] The mark 1, gear box body, 2, ventilation cavity, 3, heat dissipation cavity, 4, dustproof filter screen plate, 5, sealing connecting plate, 6, locking insertion slot, 7, movable cavity, 8, reset spring, 9, locking insertion rod, 10, connecting pull rod, 11, ventilation groove, 12, connecting groove, 13, mounting groove, 14, unit fan, 15, temperature sensor, 16, gear box cover, 17, mounting plate, 18, protection net. DETAILED DESCRIPTION

[0023] The utility model will be further explained in connection with the drawings and examples.

[0024] Please refer to Figures 1-5The utility model provides a kind of excavator gear box with protective structure, including gear box 1, the left side of the inside of gear box 1 is equipped with ventilation cavity 2, the right side of the inside of gear box 1 is equipped with heat dissipation cavity 3, the inside of ventilation cavity 2 and heat dissipation cavity 3 is all provided with dustproof filter screen plate 4, the upper end of dustproof filter screen plate 4 is all extended to the outside fixed connection of gear box 1 with sealing connecting plate 5, the inside of ventilation cavity 2 and heat dissipation cavity 3 is all equipped with locking slot 6 in the front and rear ends of sealing connecting plate 5, the front and rear ends of sealing connecting plate 5 are all equipped with movable cavity 7, reset spring 8 is fixedly installed in the inside of movable cavity 7, locking plug rod 9 is fixedly installed on reset spring 8, connecting pull rod 10 is fixedly installed on the surface of locking plug rod 9, ventilation slot 11 is equipped in the left and right ends of ventilation cavity 2, connecting slot 12 is equipped in the left end of heat dissipation cavity 3, installation slot 13 is equipped in the right end of heat dissipation cavity 3, unit fan 14 is provided in the inside of installation slot 13, temperature sensor 15 is fixedly installed in the inside of heat dissipation cavity 3 and located the side of installation slot 13, dust and impurities are blocked by dustproof filter screen plate 4 when radiating, and locking plug rod 9 can be driven away from locking slot 6 by pulling connecting pull rod 10, it is convenient to pull sealing connecting plate 5 and remove dustproof filter screen plate 4, dustproof filter screen plate 4 is cleaned, the filtering performance of dustproof filter screen plate 4 is guaranteed, the filtering performance of dust protection structure is avoided to be influenced, when temperature sensor 15 detects that the temperature of gear box 1 is too high, control unit fan 14 and drive air flow, so that normal temperature air enters inside from ventilation cavity 2, and air carrying heat is discharged from heat dissipation cavity 3, realize automatic flexible heat dissipation and cooling function, and it is favorable to improve the convenience of excavator gear box use.

[0025] Please refer to Figures 1-5 In the embodiment, ventilation cavity 2 and heat dissipation cavity 3 are connected by dustproof filter screen plate 4, sealing connecting plate 5 is connected with gear box 1, locking plug rod 9 is connected with movable cavity 7, locking plug rod 9 is connected with locking slot 6, the upper end of connecting pull rod 10 extends to the outside of movable cavity 7, and the surface is connected with movable cavity 7, pull handle is fixedly installed on sealing connecting plate 5, dust and impurities are blocked by dustproof filter screen plate 4 from the gap of ventilation and heat dissipation slot hole when radiating, and locking plug rod 9 can be driven away from locking slot 6 by pulling connecting pull rod 10, the locking of sealing connecting plate 5 is released, it is convenient to pull sealing connecting plate 5 and remove dustproof filter screen plate 4, dustproof filter screen plate 4 is cleaned, the filtering performance of dustproof filter screen plate 4 is guaranteed, the filtering performance of dust protection structure is avoided to be influenced, prevent dust from causing adverse effects on internal mechanical components, and it is favorable to prolong the service life of excavator gear box.

[0026] Please refer to Figure 1 , Figure 2 , Figure 4And Figure 5 In the embodiment, the upper end of the gear box body 1 is detachably connected with a gear box cover 16, the upper end of the gear box cover 16 is fixedly installed with a handle, the ventilation slots 11 are distributed at equal intervals, the unit fan 14 is electrically connected with the temperature sensor 15, the lower side of the left and right ends of the gear box body 1 is fixedly installed with a mounting plate 17, the unit fan 14 is detachably connected with the mounting slot 13, the inside of the mounting slot 13 at the right side of the unit fan 14 is detachably connected with a protective net 18, the temperature state of the gear box body 1 is monitored in real time through the temperature sensor 15, when the temperature of the gear box body 1 is detected to be too high, the unit fan 14 is controlled to drive air flow, and the air is filtered through the dustproof filter screen 4, so that the normal temperature air enters the inside from the ventilation cavity 2, heat energy exchange is carried out, and the air carrying heat is discharged from the heat dissipation cavity 3, the automatic flexible heat dissipation and cooling function is realized, and the convenience of use of the gear box of the excavator is improved.

[0027] When working, the gear box body 1 is installed into the excavator, the gear box body 1 connecting shaft structure is connected with the corresponding mechanism of the excavator, work is started, and when heat dissipation, the dust impurities are blocked from entering the gear box body 1 through the gaps of the ventilation and heat dissipation slot holes by the dustproof filter screen 4, and the locking plug rod 9 is driven away from the locking slot 6 by pulling the connecting pull rod 10, the locking of the sealing connecting plate 5 is released, the dustproof filter screen 4 is taken out by pulling the sealing connecting plate 5, the dustproof filter screen 4 is cleaned, the filtering performance of the dustproof filter screen 4 is ensured, the filtering performance of the dust protection structure is not affected, the temperature state of the gear box body 1 is monitored in real time through the temperature sensor 15, when the temperature of the gear box body 1 is detected to be too high, the unit fan 14 is controlled to drive air flow, and the air is filtered through the dustproof filter screen 4, so that the normal temperature air enters the inside from the ventilation cavity 2, heat energy exchange is carried out, and the air carrying heat is discharged from the heat dissipation cavity 3, the automatic flexible heat dissipation and cooling function is realized.

[0028] Through the above steps, when heat dissipation, the dust impurities are blocked by the dustproof filter screen 4, and the locking plug rod 9 is driven away from the locking slot 6 by pulling the connecting pull rod 10, the dustproof filter screen 4 is taken out by pulling the sealing connecting plate 5, the dustproof filter screen 4 is cleaned, the filtering performance of the dustproof filter screen 4 is ensured, the filtering performance of the dust protection structure is not affected, so as to solve the problem that when the gear box is used, the dust easily invades into the inside from the heat dissipation slot holes and other gaps of the gear box, causes adverse effects on the mechanical parts inside, and is not conducive to prolonging the service life of the gear box of the excavator.

Claims

1. A gear box for excavator with a protective structure comprising a gear box body (1) characterized in that: The left side of the gear box (1) is provided with a ventilation cavity (2), the right side of the gear box (1) is provided with a heat dissipation cavity (3), the inside of the ventilation cavity (2) and the heat dissipation cavity (3) is provided with a dustproof filter screen (4), the upper end of the dustproof filter screen (4) is extended to the outside of the gear box (1) and is fixedly connected with a sealing connecting plate (5), the inside of the ventilation cavity (2) and the heat dissipation cavity (3) is provided with a locking slot (6) at the front and rear ends of the sealing connecting plate (5), the front and rear ends of the sealing connecting plate (5) are provided with a movable cavity (7), the inside of the movable cavity (7) is fixedly installed with a reset spring (8), the reset spring (8) is fixedly installed with a locking plug rod (9), the surface of the locking plug rod (9) is fixedly installed with a connecting pull rod (10), the left and right ends of the inside of the ventilation cavity (2) are provided with a ventilation groove (11), the left end of the inside of the heat dissipation cavity (3) is provided with a connecting groove (12), the right end of the inside of the heat dissipation cavity (3) is provided with an installation groove (13), the inside of the installation groove (13) is provided with a unit fan (14), the inside of the heat dissipation cavity (3) is fixedly installed with a temperature sensor (15) at the side of the installation groove (13).

2. The excavator gear box with protective structure according to claim 1, characterized in that: The ventilation cavity (2) and the heat dissipation cavity (3) are connected with the dustproof filter screen (4), the sealing connecting plate (5) is connected with the gear box (1).

3. The excavator gear box with protective structure according to claim 1, wherein: The locking plug rod (9) is connected with the movable cavity (7), and the locking plug rod (9) is connected with the locking slot (6).

4. The excavator gear box with protective structure according to claim 3, wherein: The upper end of the connecting pull rod (10) is extended to the outside of the movable cavity (7), and the surface is connected with the movable cavity (7), and the sealing connecting plate (5) is fixedly installed with a pull handle.

5. The excavator gear box with protective structure according to claim 1, wherein: The upper end of the gear box (1) is detachably connected with a gear box cover (16), and the upper end of the gear box cover (16) is fixedly installed with a handle.

6. The excavator gear box with protective structure according to claim 1, wherein: The ventilation grooves (11) are evenly distributed, the unit fan (14) is electrically connected with the temperature sensor (15), and the lower sides of the left and right ends of the gear box (1) are fixedly installed with mounting plates (17).

7. A gear box for an excavator tooth according to claim 6, wherein: The unit fan (14) is detachably connected with the installation groove (13), and the inside of the installation groove (13) is detachably connected with a protective net (18) at the right side of the unit fan (14).

Images