CN216892608U

CN216892608U - Hydraulic steering device of double-telescopic-arm loader

Info

Publication number: CN216892608U
Application number: CN202220118641.7U
Authority: CN
Inventors: 韩政霖
Original assignee: Shandong Oujin Engineering Machinery Co ltd
Current assignee: Shandong Oujin Engineering Machinery Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-07-05
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses a hydraulic steering device of a double-telescopic-arm loader, which comprises a shell, an oil outlet pipe, an oil inlet pipe and other steering components arranged in the shell, wherein the side wall of the shell is fixedly connected with a mounting box, a cooling mechanism for reducing the temperature of hydraulic oil is arranged in the shell, the cooling mechanism comprises a cooling fan fixedly connected to the inner wall of the shell, a first cooling pipe is communicated with the oil outlet pipe and provided with a flow dividing pipe, the first cooling pipe is opposite to the cooling fan, and the inner wall of the shell is fixedly connected with a liquid storage box. The cooling mechanism is arranged, the steering hydraulic oil is effectively cooled when the steering is frequently steered by combining air cooling and water cooling, and the stirring mechanism is additionally arranged, so that cooling liquid at each part can be contacted with the second cooling pipe, and the cooling effect of the hydraulic oil is improved.

Description

Hydraulic steering device of double-telescopic-arm loader

Technical Field

The utility model relates to the technical field of loaders, in particular to a hydraulic steering device of a double-telescopic-arm loader.

Background

At present, a steering hydraulic system of a double-telescopic-arm loader in China is generally a quantitative system, and compared with a variable system, the quantitative system has the advantages of high maturity, good reliability, strong pollution resistance, high cost performance and the like.

The existing hydraulic steering device of the double-telescopic-arm loader is usually internally provided with a cooling fan, so that the heat of a pipeline through which hydraulic oil flows can be dissipated, but when the environmental temperature is higher or the telescopic arm frequently steers, the temperature of the hydraulic oil can be continuously increased, only the air cooling heat dissipation is carried out, the oil temperature of the hydraulic oil can still be increased, and in a long-time high-temperature environment, the hydraulic cylinder flows through the pipeline and is easy to break and age, so that the leakage of the steering oil is caused, therefore, the hydraulic steering device of the double-telescopic-arm loader needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a hydraulic steering device of a double-telescopic-arm loader.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a two telescopic arm loader hydraulic pressure turn to device, includes the casing, goes out oil pipe, advances oil pipe and sets up other in the casing and turn to the subassembly, casing lateral wall fixedly connected with mounting box, be equipped with in the casing and be used for reducing hydraulic oil temperature cooling mechanism, cooling mechanism includes fixed connection at shells inner wall's radiator fan, it is equipped with first cooling tube to go out the intercommunication on the oil pipe, the intercommunication is equipped with the shunt tubes on the first cooling tube, first cooling tube is just to radiator fan setting, shells inner wall fixedly connected with stock solution box, be equipped with the second cooling tube with the shunt tubes intercommunication in the stock solution box, be equipped with the coolant liquid in the stock solution box, be equipped with in the mounting box and be used for accelerating the rabbling mechanism that the coolant liquid flows.

Preferably, the stirring mechanism includes fixed connection at the driving motor of mounting box inner wall, driving motor's output shaft fixedly connected with axis of rotation, two collars of fixedly connected with in the axis of rotation, a plurality of stirring vane of collar lateral wall fixedly connected with.

Preferably, the shunt pipe is communicated with the oil inlet pipe, the second cooling pipe is communicated with the oil inlet pipe, and the second cooling pipe is provided with a first electromagnetic valve and a third electromagnetic valve.

Preferably, a second electromagnetic valve is arranged on the shunt pipe, and the second cooling pipe is spirally arranged.

Preferably, a temperature sensor is arranged on the shell, and two refrigerating sheets are installed on the inner wall of the liquid storage box.

Preferably, a plurality of radiating fins are arranged on the first cooling pipe, and the section of the first cooling pipe is of a serpentine structure.

The utility model has the following beneficial effects:

1. the device is provided with a cooling mechanism, a cooling fan is started, a second electromagnetic valve is closed, a first electromagnetic valve and a third electromagnetic valve are opened, a hydraulic cylinder extrudes the second cooling pipe from the first cooling pipe, and a large amount of heat is taken away by cooling liquid in the flowing process of hydraulic oil in the spirally arranged second cooling pipe, so that the steering hydraulic oil during frequent steering is effectively cooled through the combination of air cooling and water cooling;

2. the device is provided with the stirring mechanism, the driving motor is started, the stirring blades rotate, and the stirring blades drive the cooling liquid in the liquid storage box to flow, so that the cooling liquid at each position can be contacted with the second cooling pipe, and the cooling effect of the hydraulic oil is improved;

3. this device has set up refrigeration piece and temperature sensor, and when the upper end exceeded temperature sensor and set for the threshold value, refrigeration piece switch on power refrigerates the coolant liquid, and stirring vane continues to rotate to the cooling effect of hydraulic oil when having guaranteed to last frequent turning to.

Drawings

Fig. 1 is a schematic structural diagram of a hydraulic steering device of a double-telescopic-arm loader according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a top view of fig. 1.

In the figure: the device comprises a shell 1, an oil outlet pipe 2, an oil inlet pipe 3, a first cooling pipe 4, a shunt pipe 5, a first electromagnetic valve 6, a heat radiating fin 7, a heat radiating fan 8, a second electromagnetic valve 9, a second cooling pipe 10, a third electromagnetic valve 11, a liquid storage box 12, a mounting box 13, a driving motor 14, a rotating shaft 15, a mounting ring 16, a stirring blade 17, a refrigerating piece 18 and a temperature sensor 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a hydraulic steering device for a double-telescopic-arm loader comprises a shell 1, an oil outlet pipe 2, an oil inlet pipe 3 and other steering assemblies arranged in the shell 1, a mounting box 13 fixedly connected to the side wall of the shell 1, a mechanism for reducing the temperature of hydraulic oil is arranged in the shell 1, the cooling mechanism comprises a cooling fan 8 fixedly connected to the inner wall of the shell 1, a first cooling pipe 4 is arranged on the oil outlet pipe 2 in a communicating manner, a flow dividing pipe 5 is arranged on the first cooling pipe 4 in a communicating manner, the first cooling pipe 4 is just opposite to the cooling fan 8, the cooling fan 8 is arranged below the first cooling pipe 4, a liquid storage box 12 fixedly connected to the inner wall of the shell 1, a second cooling pipe 10 communicated with the flow dividing pipe 5 is arranged in the liquid storage box 12, and cooling liquid is arranged in the liquid storage box 12.

Be equipped with in the mounting box 13 and be used for accelerating the rabbling mechanism that the coolant liquid flows, the rabbling mechanism includes fixed connection at the driving motor 14 of mounting box 13 inner wall, and driving motor 14's output shaft fixedly connected with axis of rotation 15, two collars 16 of fixedly connected with on the axis of rotation 15, a plurality of stirring vane 17 of 16 lateral walls fixedly connected with of collar.

According to the utility model, the shunt pipe 5 is communicated with the oil inlet pipe 3, the second cooling pipe 10 is communicated with the oil inlet pipe 3, the first electromagnetic valve 6 and the third electromagnetic valve 11 are arranged on the second cooling pipe 10, the second electromagnetic valve 9 is arranged on the shunt pipe 5, the second cooling pipe 10 is partially spirally arranged, and the arrangement of the first electromagnetic valve 6, the second electromagnetic valve 9 and the third electromagnetic valve 11 enables hydraulic oil flowing out of the shunt pipe 5 to enter the second cooling pipe 10 for further cooling.

In the utility model, the shell 1 is provided with the temperature sensor 19, the inner wall of the liquid storage box 12 is provided with the two refrigerating sheets 18, the temperature sensor 19 and the refrigerating sheets 18 are both in the prior art, the hot end of the refrigerating sheets 18 is arranged outside the shell 1, and the refrigerating sheets 18 are semiconductor refrigerating sheets which are used for refrigerating the cooling liquid in the prior art, so that the refrigeration is not described in detail.

According to the utility model, the plurality of radiating fins 7 are arranged on the first cooling pipe 4, the cross section of the first cooling pipe 4 is of a serpentine structure, so that the residence time of hydraulic oil can be prolonged, more heat of the first cooling pipe 4 can be brought by the radiating fan 8, the radiating area of the first cooling pipe 4 is increased by the radiating fins 7, the radiating effect is better, and the radiating rate is improved.

When the hydraulic steering device is used, hydraulic oil enters the first cooling pipe 4 and the flow dividing pipe 5 from the oil outlet pipe 2 and enters the oil inlet pipe 3, the hydraulic oil in the oil inlet pipe 3 returns to the oil cylinder of the steering device again, the heat dissipation fan 8 is started, the air flow near the first cooling pipe 4 is accelerated by the heat dissipation fan 8, the hydraulic oil is cooled by air cooling, when the telescopic boom frequently steers, the second electromagnetic valve 9 can be closed, the first electromagnetic valve 6 and the third electromagnetic valve 11 are opened, the hydraulic cylinder extrudes the second cooling pipe 10 from the first cooling pipe 4, a large amount of heat is taken away by cooling liquid in the process that the hydraulic oil flows in the spirally arranged second cooling pipe 10, and therefore the steering hydraulic oil during frequent steering is effectively cooled by combining air cooling and water cooling;

the driving motor 14 is started, the output shaft of the driving motor 14 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the plurality of stirring blades 17 to rotate, and the stirring blades 17 drive the cooling liquid in the liquid storage box 12 to flow, so that the cooling liquid at each position can be in contact with the second cooling pipe 10, and the cooling effect of the hydraulic oil is improved;

when the telescopic boom continuously and frequently turns to, the temperature of the cooling liquid in the liquid storage box 12 rises, when the upper end exceeds the set threshold value of the temperature sensor 19, the refrigerating piece 18 is powered on to refrigerate the cooling liquid, and the stirring blade 17 continuously rotates, so that the cooling effect of the hydraulic oil when the telescopic boom continuously and frequently turns to is ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention, the technical solutions and the practical concepts of the present invention equivalent or changed within the technical scope of the present invention.

Claims

1. A hydraulic steering device of a double-telescopic-arm loader comprises a shell (1), an oil outlet pipe (2) and an oil inlet pipe (3), it is characterized in that the side wall of the shell (1) is fixedly connected with a mounting box (13), a cooling mechanism for reducing the temperature of the hydraulic oil is arranged in the shell (1), the cooling mechanism comprises a cooling fan (8) fixedly connected with the inner wall of the shell (1), a first cooling pipe (4) is communicated with the oil outlet pipe (2), a shunt pipe (5) is communicated with the first cooling pipe (4), the first cooling pipe (4) is arranged right opposite to the heat radiation fan (8), the inner wall of the shell (1) is fixedly connected with a liquid storage box (12), a second cooling pipe (10) communicated with the shunt pipe (5) is arranged in the liquid storage box (12), the liquid storage box (12) is internally provided with cooling liquid, and the mounting box (13) is internally provided with a stirring mechanism for accelerating the flowing of the cooling liquid.

2. The hydraulic steering device of the double-telescopic-arm loader according to claim 1, wherein the stirring mechanism comprises a driving motor (14) fixedly connected to the inner wall of the mounting box (13), an output shaft of the driving motor (14) is fixedly connected with a rotating shaft (15), two mounting rings (16) are fixedly connected to the rotating shaft (15), and a plurality of stirring blades (17) are fixedly connected to the side walls of the mounting rings (16).

3. The hydraulic steering device of a double telescopic arm loader according to claim 2, wherein the flow dividing pipe (5) is communicated with the oil inlet pipe (3), the second cooling pipe (10) is communicated with the oil inlet pipe (3), and the second cooling pipe (10) is provided with the first solenoid valve (6) and the third solenoid valve (11).

4. A dual telescopic arm loader hydraulic steering arrangement according to claim 3 wherein the bypass tube (5) is provided with a second solenoid valve (9) and the second cooling tube (10) is partially helically arranged.

5. The hydraulic steering device of a double-telescopic-arm loader as claimed in claim 1, wherein the housing (1) is provided with a temperature sensor (19), and the inner wall of the liquid storage box (12) is provided with two refrigeration sheets (18).

6. The hydraulic steering device of the double-telescopic-arm loader as claimed in claim 1, wherein the first cooling pipe (4) is provided with a plurality of radiating fins (7), and the cross section of the first cooling pipe (4) is of a serpentine structure.