A rotary hydraulic motor pressure relief device

Abstract

The utility model provides a rotary hydraulic motor pressure relief device, including: a pressure relief oil tank, a plurality of pressure relief oil pipes, a bracket and an oil level observation device, wherein the bracket is installed on the main platform of the thickener, the pressure relief oil tank is installed on the bracket, one end of the plurality of pressure relief oil pipes is connected to the bottom of the pressure relief oil tank, and the other end is respectively connected to the oil return ports of a plurality of rotary hydraulic motors; the oil level observation device is installed on the outer wall of the pressure relief oil tank. The utility model has stable operation, long service life, and convenient maintenance. It solves the problem of oil leakage caused by excessively high temperature and thermal expansion and contraction of oil products in summer, reduces the labor intensity of post personnel, reduces the failure rate of thickeners, ensures the safe operation of mineral processing production, and improves production capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic motors, in particular to a pressure relief device for a rotary hydraulic motor. Background Art

[0002] The thickener is one of the important equipment in a mineral processing plant. After the equipment is put into operation, the rotary hydraulic motor runs continuously for 24 hours. Before operation, the hydraulic oil level of the equipment is required to reach the minimum oil level standard. However, since the summer, the rising temperature has caused thermal expansion of the oil, which in turn has caused the oil level to rise and exceed the liquid level mark during normal operation, overflowing from the oil filling nozzle into the equipment body, which not only wastes oil but also causes equipment pollution. Utility Model Content

[0003] According to the technical problem raised above, a rotary hydraulic motor pressure relief device is provided. The technical means adopted by the utility model are as follows:

[0004] A rotary hydraulic motor pressure relief device comprises: a pressure relief oil tank, a plurality of pressure relief oil pipes, a bracket and an oil level observation device, wherein the bracket is installed on a thickener main platform, the pressure relief oil tank is installed on the bracket, one end of the plurality of pressure relief oil pipes is connected to the bottom of the pressure relief oil tank, and the other end is respectively connected to the oil return ports of a plurality of rotary hydraulic motors; the oil level observation device is installed on the outer side wall of the pressure relief oil tank.

[0005] Furthermore, a plurality of first oil ports are opened at the bottom of the pressure relief oil tank, and ends of the plurality of pressure relief oil pipes are respectively connected to the plurality of first oil ports.

[0006] Furthermore, the oil level observation device is vertically arranged, including an upper connecting valve, a liquid level observation glass tube and a lower connecting valve, the upper and lower ends of the liquid level observation glass tube are respectively connected to the upper connecting valve and the lower connecting valve, the side wall of the pressure relief oil tank is provided with an upper second oil port and a lower third oil port, the upper connecting valve is connected to the second oil port, the lower connecting valve is connected to the third oil port, and the liquid level observation glass tube is connected to the interior of the pressure relief oil tank.

[0007] Furthermore, the upper connecting valve and the lower connecting valve are both provided with switches, which are in a normally open state during use.

[0008] Furthermore, the pressure relief oil pipe is threadedly connected to the oil return port of the rotary hydraulic motor.

[0009] Furthermore, the bottom of the pressure relief oil tank is horizontally arranged with the tops of the plurality of rotary hydraulic motors.

[0010] Furthermore, the bracket is welded on the thickener main platform and is located at the center of the multiple rotary hydraulic motors.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The utility model adopts a pressure relief oil tank to prevent oil leakage and resource waste. When the temperature drops, the overflow oil stored in the pressure relief oil tank will flow back to the hydraulic motor, reducing the intensity of job operation. The failure rate of the thickener is greatly reduced, ensuring the safe operation of mineral processing production, improving production capacity, and increasing enterprise production efficiency.

[0013] 2. The utility model device has stable operation, simple structure, long service life and convenient inspection and maintenance.

[0014] 3. The structural assembly form of the utility model is convenient for checking the oil level and oil quality on a periodic basis.

[0015] Based on the above reasons, the utility model can be widely promoted in the fields of hydraulic motors and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the pressure relief oil tank of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the pressure relief oil tank and the oil level observation device of the utility model.

[0020] Figure 4 This is an application effect diagram of the utility model.

[0021] Figure 5 This is the original design drawing of the rotary hydraulic motor.

[0022] In the figure: 1. pressure relief oil tank; 2. pressure relief oil pipe; 3. bracket; 4. oil level observation device; 41. upper connecting valve; 42. liquid level observation glass tube; 43. lower connecting valve; 5. rotary hydraulic motor; 6. thickener main platform. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides a rotary hydraulic motor pressure relief device, comprising: a pressure relief oil tank 1, a plurality of pressure relief oil pipes 2, a bracket 3 and an oil level observation device 4, the bracket 3 is installed on a thickener main platform 6, the pressure relief oil tank 1 is installed on the bracket 3, one end of the plurality of pressure relief oil pipes 2 is connected to the bottom of the pressure relief oil tank 1, and the other end is respectively connected to the oil return port of a plurality of rotary hydraulic motors 5; the oil level observation device 4 is installed on the outer side wall of the pressure relief oil tank 1.

[0025] In this embodiment, there are three rotary hydraulic motors 5 and three pressure relief oil pipes 2. The bottom of the pressure relief oil tank 1 is provided with three first oil ports, and the ends of the three pressure relief oil pipes 2 are respectively connected to the three first oil ports. The bottom of the oil relief oil tank 1 is horizontally arranged with the tops of the three rotary hydraulic motors 5. The bracket 3 is welded on the thickener main platform 6 and is located at the center of the three rotary hydraulic motors 5.

[0026] As a preferred embodiment, the oil level observation device 4 is vertically arranged, including an upper connecting valve 41, a liquid level observation glass tube 42 and a lower connecting valve 43. The upper and lower ends of the liquid level observation glass tube 42 are respectively connected to the upper connecting valve 41 and the lower connecting valve 43. A hole is drilled on the side of the pressure relief oil tank 1, that is, the side wall of the pressure relief oil tank 1 is provided with an upper second oil port and a lower third oil port. The upper connecting valve 41 is connected to the second oil port, and the lower connecting valve 43 is connected to the third oil port. The liquid level observation glass tube 42 is connected to the interior of the pressure relief oil tank 1. Both the upper connecting valve 41 and the lower connecting valve 43 are equipped with switches and are in a normally open state during use. The oil level observation device 4 is connected through the upper and lower connecting valves, and is fastened with a spare cap after adding a sealing pad, so as to achieve the requirement of real-time observation of the oil tank liquid level.

[0027] As a preferred embodiment, the pressure relief oil pipe 2 is threadedly connected to the oil return port of the rotary hydraulic motor 5 .

[0028] As a preferred embodiment, the size of the pressure relief oil tank 1 is 200 mm×200 mm×200 mm.

[0029] As a preferred embodiment, the height of the bracket 3 is 1200 mm.

[0030] The core of the utility model device is to make an oil drain tank 1, which is installed on the main equipment (thickener main platform 6), and is connected to three rotary hydraulic motors 5 through three pressure relief pipes 2. When the oil level rises above the standard liquid level, the bulging part of the hydraulic oil is pushed into the oil drain tank 1 through the pressure relief pipe 2. When the temperature drops, the hydraulic oil flows back from the oil drain tank 1 to the inside of the rotary hydraulic motor 5, thereby ensuring that the hydraulic oil level of the equipment is always maintained at the standard liquid level. The utility model device is an extended design of the hydraulic motor. The bottom of the oil drain tank 1 is horizontally arranged with the tops of the three rotary hydraulic motors 5. The oil flowing out due to thermal expansion can flow into the pressure relief tank 1 by itself, without the need to install valves, hydraulic pumps and other equipment.

[0031] 1. Make a pressure relief oil tank 1 with a size of 200mm×200mm×200mm, with an oil mark glass tube (i.e., oil level observation device 4).

[0032] 2. A 1200 mm high oil tank bracket 3 is welded and installed at the center of the three rotary hydraulic motors 5 on the thickener main platform 6 , and the pressure relief oil tank 1 is fixed to the thickener main platform 6 through the bracket 3 .

[0033] 3. In this embodiment, three pressure relief oil pipes 2 extend in a triangular shape from the bottom of the pressure relief oil tank 1 , and the heads of the pressure relief oil pipes 2 are respectively threadedly connected with the return oil ports of the three rotary hydraulic motors 5 .

[0034] The utility model solves the problem of oil leakage caused by the high temperature and thermal expansion and contraction of oil in summer. When entering the autumn and winter seasons, the oil will be replenished to the rotary hydraulic motor oil tank along with the liquid level gravity flow, which greatly reduces the labor intensity of the personnel on the job. It greatly reduces the failure rate of the thickener, ensures the safe operation of mineral processing production, improves production capacity, and increases the production efficiency of the enterprise.

[0035] The utility model has the advantages of stable operation, simple structure, long service life and convenient inspection and maintenance.

[0036] Since the application of the utility model, there has been no oil leakage, and the use effect is very obvious, achieving the equipment management goal of saving costs and increasing benefits. By comparing with the original process, it greatly reduces the waste of oil products, reduces the intensity of job operation, and has a good effect on on-site civilized production management, and solves the hidden danger of equipment oil shortage, achieving the goal of equipment safe production.

[0037] The utility model device prevents the oil from overflowing, and can greatly reduce the waste of oil.

[0038] In ensuring the site is clean and tidy, the utility model meets the requirements of civilized production.

[0039] The structural assembly form of the utility model is convenient for observing the oil level and oil quality changes in a periodic manner.

[0040] The utility model greatly reduces the operating intensity of workers at the post.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A rotary hydraulic motor pressure relief device, characterized in that: include: A pressure relief oil tank (1), a plurality of pressure relief oil pipes (2), a bracket (3) and an oil level observation device (4), wherein the bracket (3) is mounted on a thickener main platform (6), the pressure relief oil tank (1) is mounted on the bracket (3), one end of the plurality of pressure relief oil pipes (2) is connected to the bottom of the pressure relief oil tank (1), and the other end is respectively connected to the oil return ports of a plurality of rotary hydraulic motors (5); the oil level observation device (4) is mounted on the outer wall of the pressure relief oil tank (1).

2. The rotary hydraulic motor pressure relief device according to claim 1, characterized in that: The bottom of the pressure relief oil tank (1) is provided with a plurality of first oil ports, and the ends of the plurality of pressure relief oil pipes (2) are respectively connected to the plurality of first oil ports.

3. The rotary hydraulic motor pressure relief device according to claim 1, characterized in that: The oil level observation device (4) is arranged vertically, and comprises an upper connecting valve (41), a liquid level observation glass tube (42) and a lower connecting valve (43). The upper and lower ends of the liquid level observation glass tube (42) are respectively connected to the upper connecting valve (41) and the lower connecting valve (43). The side wall of the pressure relief oil tank (1) is provided with an upper second oil port and a lower third oil port. The upper connecting valve (41) is connected to the second oil port, the lower connecting valve (43) is connected to the third oil port, and the liquid level observation glass tube (42) is connected to the interior of the pressure relief oil tank (1).

4. The rotary hydraulic motor pressure relief device according to claim 3, characterized in that: The upper connecting valve (41) and the lower connecting valve (43) are both provided with switches, which are in a normally open state during use.

5. The rotary hydraulic motor pressure relief device according to claim 1, characterized in that: The pressure relief oil pipe (2) is threadedly connected to the oil return port of the rotary hydraulic motor (5).

6. The rotary hydraulic motor pressure relief device according to claim 1, characterized in that: The bottom of the pressure relief oil tank (1) is horizontally arranged with the tops of the plurality of rotary hydraulic motors (5).

7. The rotary hydraulic motor pressure relief device according to claim 1, characterized in that: The bracket (3) is welded on the thickener main platform (6) and is located at the center of the plurality of rotary hydraulic motors (5).

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