CN221837652U - Excavator hydraulic motor - Google Patents

Abstract

The utility model discloses an excavator hydraulic motor, which comprises a shell, wherein a plurality of cooling fins are vertically and fixedly arranged on the outer wall of the shell, a plurality of through holes are formed in each cooling fin, a heat conduction groove is formed in the outer wall of the shell and between every two cooling fins, a bottom plate is fixedly arranged at the bottom of the shell, a filter plate is arranged in the bottom plate, and a filter screen is arranged at the bottom of the bottom plate. According to the utility model, through increasing the caliber of the vent hole of the bottom plate, the heat dissipation effect of the bottom of the shell is improved, and meanwhile, the double combination of the filter plate and the filter screen is utilized, so that under the condition that the heat dissipation of the vent hole is not affected, foreign matters and dust are prevented from entering the inside of the shell, and the heat dissipation fins, the heat conduction grooves and the structural design of the heat conduction rings in the shell are arranged on the outer wall of the shell, so that the heat in the shell is more efficiently transferred to the outside, and the heat dissipation mode of the shell is increased, thereby improving the heat dissipation effect of the hydraulic motor.

Description

Excavator hydraulic motor

Technical Field

The utility model relates to the technical field of hydraulic motors, in particular to an excavator hydraulic motor.

Background Art

An excavator hydraulic motor is a hydraulic drive device used to rotate an excavator. It is usually driven by high-pressure hydraulic oil provided by a hydraulic pump, converting hydraulic energy into mechanical energy, thereby enabling various actions of the excavator. Hydraulic motors are usually used to drive the excavator's rotation, travel, bucket and other accessories.

Hydraulic motors have the advantages of simple structure, high reliability, large torque and adjustable speed, so they are widely used in construction machinery such as excavators.

Hydraulic motors generate a lot of heat when working. This is mainly due to the energy loss in the conversion process of hydraulic energy, which causes the system to generate heat. In addition, factors such as friction and oil leakage will also aggravate the generation of heat. However, the working efficiency and stability of hydraulic motors are affected by temperature. When the temperature is too high, the viscosity of the hydraulic system will decrease, causing leakage and loss in the system, reducing the working efficiency of the system. At the same time, high temperature will also cause the seals to age and expand, increasing the possibility of leakage. In addition, excessively high temperature will also cause the hydraulic oil to oxidize and deteriorate during operation, further reducing the performance of the system. The existing hydraulic motors cannot meet the heat dissipation requirements of high-power operation through a single heat dissipation method.

Therefore, it is necessary to invent an excavator hydraulic motor to solve the above problems.

Utility Model Content

The purpose of the utility model is to provide an excavator hydraulic motor to solve the above-mentioned deficiencies in the technology.

In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an excavator hydraulic motor comprises a shell, a plurality of heat sinks are vertically fixedly installed on the outer wall of the shell, each of the heat sinks is provided with a plurality of through holes, a heat conduction groove is provided on the outer wall of the shell and between every two heat sinks, a bottom plate is fixedly installed on the bottom of the shell, a filter plate is arranged inside the bottom plate, and a filter screen is arranged at the bottom of the bottom plate.

As a preferred solution of the utility model, a plurality of heat-conducting rings are arranged on the inner wall of the shell from top to bottom, and each of the heat-conducting rings is tightly fitted with the inner wall of the shell.

As a preferred solution of the utility model, a plurality of oil pipe grooves are opened on the inner wall of the shell, each of which is provided with a cooling oil pipe, a brake disc is provided inside the shell, and the heat conducting ring and the cooling oil pipe are wrapped around the outside of the brake disc.

As a preferred solution of the utility model, a socket is provided on one side of the base plate, the filter plate is inserted into the socket, a plurality of filter holes are provided in the middle portion of the filter plate, and the filter screen and the filter plate are fixed to the base plate by bolts.

As a preferred solution of the utility model, a ventilation hole is opened in the middle part of the bottom plate, and the ventilation hole corresponds to the middle area of the filter plate. A sealing cover is fixedly installed on the top of the shell.

In the above technical solution, the technical effects and advantages provided by the utility model are:

1. By increasing the diameter of the ventilation holes of the bottom plate, the heat dissipation effect of the bottom of the shell is improved. At the same time, the dual combination of the filter plate and the filter screen is used to prevent foreign matter and dust from entering the shell without affecting the heat dissipation of the ventilation holes. The heat sink, heat conduction groove and internal heat conduction ring structure designed on the outer wall of the shell make the heat inside the shell more efficiently transferred to the outside, so that the heat dissipation methods of the shell are increased, thereby improving the heat dissipation effect of the hydraulic motor.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

Figure 1 is a perspective view of the overall structure of the utility model;

FIG2 is an exploded view of the overall structure of the utility model from a first perspective;

FIG3 is an exploded view of the overall structure of the utility model from a second viewing angle;

FIG. 4 is an exploded view of the bottom plate of the utility model.

Description of reference numerals:

1. Shell; 2. Heat-conducting ring; 3. Heat sink; 4. Bottom plate; 5. Socket; 6. Filter plate; 7. Filter screen; 8. Heat-conducting groove; 9. Through hole; 10. Brake disc; 11. Oil pipe groove; 12. Sealing cover; 13. Ventilation hole.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

The utility model provides an excavator hydraulic motor as shown in Figures 1-4, including a shell 1, a plurality of heat sinks 3 are vertically fixedly installed on the outer wall of the shell 1, each heat sink 3 is provided with a plurality of through holes 9, a heat conduction groove 8 is provided on the outer wall of the shell 1 and between every two heat sinks 3, a bottom plate 4 is fixedly installed on the bottom of the shell 1, a filter plate 6 is arranged inside the bottom plate 4, and a filter screen 7 is arranged at the bottom of the bottom plate 4. The design of the heat sink 3, the heat conduction groove 8 and the heat conduction ring 2 can effectively improve the heat dissipation effect, avoid overheating of the hydraulic motor, and extend the service life.

Furthermore, in the above technical solution, a plurality of heat-conducting rings 2 are arranged on the inner wall of the shell 1 from top to bottom, and each heat-conducting ring 2 is tightly fitted with the inner wall of the shell 1 .

Furthermore, in the above technical solution, a plurality of oil pipe grooves 11 are provided on the inner wall of the shell 1, and a cooling oil pipe is provided in each oil pipe groove 11. A brake disc 10 is provided inside the shell 1, and the heat conducting ring 2 and the cooling oil pipe are wrapped around the outside of the brake disc 10. The setting of the oil pipe groove 11, the cooling oil pipe and the brake disc 10 can greatly reduce the working temperature of the hydraulic motor and ensure its stable operation.

Furthermore, in the above technical solution, a socket 5 is provided on one side of the base plate 4, a filter plate 6 is inserted into the socket 5, a plurality of filter holes are provided in the middle portion of the filter plate 6, the filter screen 7 and the filter plate 6 are fixed to the base plate 4 by bolts, and the combination design of the socket 5 and the filter plate 6 is simple and easy, which facilitates the replacement and maintenance of the filter plate 6.

Furthermore, in the above technical solution, a ventilation hole 13 is opened in the middle part of the bottom plate 4, and the ventilation hole 13 corresponds to the middle area of the filter plate 6. A sealing cover 12 is fixedly installed on the top of the shell 1 to ensure the sealing inside and outside of the device. Through the ventilation hole 13 and the filter plate 6, ventilation and gas exchange of the hydraulic system can be achieved, thereby ensuring the internal stability of the system and achieving a good heat dissipation effect.

When the excavator hydraulic motor provided by the utility model is in use, its working process is as follows:

The device is properly installed on the hydraulic motor of the excavator. When the hydraulic motor is running, the heat sink 3 can effectively dissipate heat through the vertical fixation of the outer wall. At the same time, the multiple through holes 9 on each heat sink 3 allow air to flow, improving the heat dissipation effect. In order to further improve the heat dissipation effect, the outer wall of the shell 1 and between every two heat sinks 3 are provided with a heat conduction groove 8, which can increase the heat dissipation surface area and promote heat conduction. In addition, the inner wall of the shell 1 is provided with multiple heat conduction rings 2 that are close to the inner wall of the shell 1 from top to bottom. The heat conduction rings 2 can help quickly transfer heat to the surface of the shell 1 and improve the heat dissipation efficiency;

In the device, the inner wall of the housing 1 is provided with a plurality of oil pipe grooves 11, and each oil pipe groove 11 is provided with a cooling oil pipe, so that when the hydraulic motor is running, the heat can be taken away by the cooling oil pipe to further reduce the temperature. At the same time, a brake disc 10 is also provided in the device, and the heat-conducting ring 2 and the cooling oil pipe are wrapped around the outside of the brake disc 10 to increase the heat dissipation effect of the brake disc 10 and prevent overheating. The bottom plate 4 is fixedly installed at the bottom of the housing 1, and a filter plate 6 is provided inside the bottom plate 4, and the filter plate 6 is inserted on one side of the bottom plate 4 through the socket 5. The design of the socket 5 facilitates the installation and replacement of the filter plate 6. A plurality of filter holes are provided in the middle part of the filter plate 6, and the filter screen 7 and the filter plate 6 are fixed to the bottom plate 4 by bolts. In this way, the filter screen 7 can filter out impurities in the hydraulic system to ensure the normal operation of the system, and at the same time, it can prevent foreign matter from entering the housing 1 through the ventilation hole 13.

The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims (5)

1. An excavator hydraulic motor, comprising a housing (1), characterized in that: a plurality of heat sinks (3) are vertically fixedly mounted on the outer wall of the housing (1), each of the heat sinks (3) is provided with a plurality of through holes (9), a heat conduction groove (8) is provided on the outer wall of the housing (1) and between every two heat sinks (3), a bottom plate (4) is fixedly mounted on the bottom of the housing (1), a filter plate (6) is arranged inside the bottom plate (4), and a filter screen (7) is arranged at the bottom of the bottom plate (4). 2. The excavator hydraulic motor according to claim 1 is characterized in that: a plurality of heat-conducting rings (2) are arranged on the inner wall of the housing (1) from top to bottom, and each of the heat-conducting rings (2) is tightly fitted with the inner wall of the housing (1). 3. The excavator hydraulic motor according to claim 2 is characterized in that: a plurality of oil pipe grooves (11) are provided on the inner wall of the housing (1), each of the oil pipe grooves (11) is provided with a cooling oil pipe, a brake disc (10) is provided inside the housing (1), and the heat conducting ring (2) and the cooling oil pipe are wrapped around the outside of the brake disc (10). 4. The excavator hydraulic motor according to claim 1 is characterized in that: a socket (5) is opened on one side of the base plate (4), the filter plate (6) is inserted into the socket (5), a plurality of filter holes are opened in the middle part of the filter plate (6), and the filter screen (7) and the filter plate (6) are fixed to the base plate (4) by bolts. 5. The excavator hydraulic motor according to claim 1 is characterized in that a ventilation hole (13) is opened in the middle part of the base plate (4), the ventilation hole (13) corresponds to the middle area of the filter plate (6), and a sealing cover (12) is fixedly installed on the top of the shell (1).