Balance valve assembly and connecting structure of balance valve assembly and height adjusting oil cylinder
By designing a detachable fixed connection balance valve assembly and installing it on a coal miner to avoid damage to coal rock, the problem of existing balance valves is solved, improving working reliability and life, and simplifying the maintenance process.
Patent Information
- Application Number
- CN202420906553.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The balance valves on existing coal mining machines are easily damaged by coal rock, resulting in short service life and machine shutdown, which brings inconvenience to production.
A balance valve assembly is designed, including a balance valve, mounting seat and connecting plate, which is installed in other positions on the coal mining machine to avoid damage to coal rock through a removable fixed connection, and is made more compact by fixed articulated pipe joints and bidirectional balance valve structure.
By installing the balance valve in the protective position inside the coal miner, damage to coal rock is avoided, the working reliability and life of the balance valve is improved, and the maintenance and replacement process is simplified.
Smart Images
Figure CN222596430U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a balancing valve assembly used as a hydraulic lock for a height adjustment cylinder and a connection structure between the balancing valve assembly and the height adjustment cylinder. The balancing valve assembly can be installed at any suitable position outside the height adjustment cylinder on a coal mining machine to avoid the valve body being damaged by coal and rock. Background Art
[0002] In the hydraulic system of coal mining machines, hydraulic locks are generally used to perform locking actions. Balance valves are more commonly used as hydraulic locks in high-power coal mining machines due to their excellent dynamic self-adjustment characteristics and relatively mature products. Balance valves are used as hydraulic locks in pairs with two balance valves. The balance valves used on existing coal mining machines are usually installed on the cylinder barrel of the height adjustment cylinder, which is easily damaged by the mined coal and rock and has a short service life. Damage to the balance valve will directly cause the coal mining machine rocker arm to be unable to be raised normally, resulting in suspension of production, causing great inconvenience to the production of coal mining companies. Utility Model Content
[0003] The utility model provides a balancing valve component and a connection structure with a height-adjusting oil cylinder. The balancing valve component can be detached from the height-adjusting oil cylinder and installed at any other position on the coal mining machine that can avoid being damaged by coal and rock, so it has high working reliability and long service life.
[0004] The main technical solutions of the utility model are:
[0005] A balancing valve assembly comprises a balancing valve, a mounting seat and a connecting plate, wherein the valve body of the balancing valve is detachably fixedly connected to the mounting seat, the mounting seat is detachably fixedly connected to the connecting plate, an oil inlet channel and an oil return channel are arranged in the mounting seat, the outlet of the oil inlet channel is connected to and communicated with the inlet of the balancing valve, the inlet of the oil return channel is connected to and communicated with the outlet of the balancing valve, and the inlet of the oil inlet channel and the outlet of the oil return channel constitute the inlet and outlet of the balancing valve assembly respectively.
[0006] The inlet and outlet of the balancing valve are both located on the bottom surface of the valve body, the outlet of the oil inlet channel and the inlet of the oil return channel are both located on the top surface of the mounting seat, the inlet of the oil inlet channel and the outlet of the oil return channel are both located on the side of the mounting seat, and the bottom surface of the valve body is in contact with the top surface of the mounting seat.
[0007] Pipe joints are installed on the inlet of the oil inlet channel and the outlet of the oil return channel.
[0008] The pipe joint is preferably a fixed hinged pipe joint.
[0009] The balancing valve is preferably a two-way balancing valve, and the balancing valve has two inlets and two outlets, two oil inlet channels and two oil return channels, the outlets of the oil inlet channels are connected one-to-one with the inlet of the balancing valve and are in communication with each other, and the inlet of the oil return channel is connected one-to-one with the outlet of the balancing valve and is in communication with each other.
[0010] A connection structure between a balancing valve assembly and a height adjustment cylinder comprises a height adjustment cylinder and the balancing valve assembly using a two-way balancing valve, wherein the balancing valve assembly and the height adjustment cylinder are separated from each other, and two inlets of the balancing valve assembly are respectively connected to two chambers of the height adjustment cylinder through oil pipes.
[0011] The beneficial effects of the utility model are:
[0012] Since the balancing valve and the height adjustment cylinder can be installed separately from each other, the balancing valve can be installed at any convenient position inside the coal mining machine to avoid damage to the valve body structure by coal and rock, thereby ensuring the working reliability of the balancing valve.
[0013] Since the balancing valve and the mounting seat, as well as the mounting seat and the connecting plate, are connected in a detachable fixed manner, the maintenance and replacement of the balancing valve are simple and convenient.
[0014] The use of fixed hinged pipe joints for the pipe joints and the use of bidirectional balancing valves for the balancing valves can make the structure of the balancing valve assembly more compact, so it is easier to find a space suitable for installing the balancing valve assembly on the coal mining machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of an embodiment of a balancing valve assembly of the utility model;
[0016] Figure 2 for Figure 1 Horizontal partial cross-sectional view.
[0017] Reference numerals:
[0018] 1. Balancing valve; 2. Mounting seat; 3. Connecting plate; 4. Valve core; 7. Fixed articulated pipe joint. DETAILED DESCRIPTION
[0019] like Figure 1 , 2As shown, the utility model discloses a balancing valve assembly, including a balancing valve 1, a mounting seat 2 and a connecting plate 3, wherein the valve body of the balancing valve is detachably fixedly connected (for example, it can be fixedly connected by screws) on the mounting seat, and the mounting seat is detachably fixedly connected to the connecting plate. An oil inlet channel and an oil return channel are arranged in the mounting seat, wherein the outlet of the oil inlet channel is connected and communicated with the inlet of the balancing valve, and the inlet of the oil return channel is connected and communicated with the outlet of the balancing valve, and the inlet of the oil inlet channel and the outlet of the oil return channel constitute the inlet and outlet of the balancing valve assembly, respectively. By fixing the connecting plate at a suitable position on the coal mining machine, the balancing valve assembly can be installed on the coal mining machine and can avoid coal and rock, thereby improving the working reliability and life of the balancing valve, and when disassembly is required, the combination of the balancing valve and the mounting seat can be removed, which is convenient for maintenance and replacement.
[0020] The inlet and outlet of the balancing valve are both located on the bottom surface of the valve body, the outlet of the oil inlet channel and the inlet of the oil return channel are both located on the top surface of the mounting seat, and the bottom surface of the valve body fits the top surface of the mounting seat. A sealing ring is provided at the joint between the outlet of the oil inlet channel and the inlet of the balancing valve, and a sealing ring is provided at the joint between the inlet of the oil return channel and the outlet of the balancing valve. The inlet of the oil inlet channel and the outlet of the oil return channel are both located on the side of the mounting seat, and can be on the same side (such as Figure 1 , 2 as shown), but also on different sides.
[0021] The inlet of the oil inlet channel and the outlet of the oil return channel are both equipped with pipe joints for connecting oil pipes.
[0022] The pipe joint preferably adopts a fixed hinged pipe joint 7, which can adjust the direction of pipe laying at will, is easy to install, and occupies a small space, so it is easier to find a space suitable for installing the balance valve assembly on the coal mining machine.
[0023] The balancing valve is preferably a two-way balancing valve, that is, a pair of balancing valve cores 4 are provided in the valve body, and the balancing valve has two inlets and two outlets, and two oil inlet channels and two oil return channels, and the outlet of the oil inlet channel is connected and communicated with the inlet of the balancing valve one-to-one, and the inlet of the oil return channel is connected and communicated with the outlet of the balancing valve one-to-one. Compared with two independent single balancing valves, the use of a two-way balancing valve has a more compact structure.
[0024] The utility model also discloses a connection structure of a balancing valve assembly and a height adjustment cylinder, including a height adjustment cylinder and the balancing valve assembly using a two-way balancing valve, wherein the balancing valve assembly and the height adjustment cylinder are separated from each other and have no contact, and the connecting plate is fixed (for example, welded) on the coal mining machine at a position outside the height adjustment cylinder to avoid coal and rock from damaging the valve body. The two inlets of the balancing valve assembly are respectively connected to the two chambers of the height adjustment cylinder through oil pipes, and the two outlets of the balancing valve assembly are respectively connected to the two working oil ports of the reversing valve through oil pipes.
Claims
1. A balancing valve assembly, characterized in that: It includes a balancing valve, a mounting seat and a connecting plate, the valve body of the balancing valve is detachably fixedly connected to the mounting seat, the mounting seat is detachably fixedly connected to the connecting plate, an oil inlet channel and an oil return channel are arranged in the mounting seat, the outlet of the oil inlet channel is connected and communicated with the inlet of the balancing valve, the inlet of the oil return channel is connected and communicated with the outlet of the balancing valve, the inlet of the oil inlet channel and the outlet of the oil return channel constitute the inlet and outlet of the balancing valve assembly respectively.
2. The balancing valve assembly according to claim 1, characterized in that: The inlet and outlet of the balancing valve are both located on the bottom surface of the valve body, the outlet of the oil inlet channel and the inlet of the oil return channel are both located on the top surface of the mounting seat, the inlet of the oil inlet channel and the outlet of the oil return channel are both located on the side of the mounting seat, and the bottom surface of the valve body is in contact with the top surface of the mounting seat.
3. The balancing valve assembly according to claim 2, characterized in that: Pipe joints are installed on the inlet of the oil inlet channel and the outlet of the oil return channel.
4. The balancing valve assembly according to claim 3, characterized in that: The pipe joint is a fixed hinged pipe joint.
5. The balancing valve assembly according to claim 1, 2, 3 or 4, characterized in that: The balancing valve is a bidirectional balancing valve, and accordingly the balancing valve has two inlets and two outlets, two oil inlet channels and two oil return channels, the outlet of the oil inlet channel is connected to and communicates with the inlet of the balancing valve one-to-one, and the inlet of the oil return channel is connected to and communicates with the outlet of the balancing valve one-to-one.
6. A connection structure between a balancing valve assembly and a height adjustment cylinder, characterized in that: It comprises a height-adjusting oil cylinder and the balancing valve assembly as claimed in claim 5, wherein the balancing valve assembly is separated from the height-adjusting oil cylinder, and two inlets of the balancing valve assembly are respectively connected to two chambers of the height-adjusting oil cylinder through oil pipes.