Arm drill electro-hydraulic valve group processing valve body cleaning device

Abstract

The utility model discloses a valve body cleaning device of big arm drill electro -hydraulic valve group processing, including connecting seat, still including negative pressure pipe and collection cabin, collection cabin fixed connection is in the other end of negative pressure pipe, and the lower extreme of connecting seat is equipped with the connector, and the upper extreme of connector inserts negative pressure pipe contraction section place, and the connector is used for connecting electro -hydraulic valve body, and collection cabin is equipped with filter core and filter screen, and filter core and filter screen are all used for filtering out residue particle, and when this valve body cleaning device valve body is in the subsequent drying and residue cleaning, the compressed air is injected in the valve body from two oil port places of valve body, thereby reaches the effect of air washing, removes the moisture and residue particle that remain inside the valve body rapidly, and the compressed air will inhale and discharge moisture and residue particle into the collection cabin simultaneously when passing through the negative pressure pipe rapidly, realizes the quick, thorough drying and residue recovery of valve body inner chamber by combining negative pressure suction and positive air purging, solves two problems of drying and residue treatment in one step.

Description

Technical Field

[0001] This utility model relates to the field of electro-hydraulic valve processing technology, specifically a valve body cleaning device for processing electro-hydraulic valve assemblies in boom drills. Background Technology

[0002] The core task of valve body cleaning devices is to thoroughly remove all contaminants generated during the processing of the valve body after it has been processed and before it has been assembled. Existing valve body cleaning methods generally include high-pressure flushing, ultrasonic cleaning, and manual brushing.

[0003] Because the internal oil channels of the valve body are complex and three-dimensionally distributed, there are blind spots. After cleaning, residual water or cleaning fluid remains in the valve body. Even if most of the liquid has flowed out, a thin liquid film will still adhere to the inner wall of the entire valve body. These droplets contain a small amount of powder particles. If they are not thoroughly dried and removed, they will cause hydraulic system failure. The existing cleaning method is to first dry the valve body after cleaning, and then use pneumatic cleaning equipment to remove the residual tiny powder particles in the valve body. The above cleaning method is not only inefficient, but also cannot collect the tiny powder particles uniformly, which can easily pollute the external environment. Therefore, a valve body cleaning device for the processing of electro-hydraulic valve groups for boom drills is designed to overcome the above problems by seamlessly integrating the two functions of drying and residue recovery. Utility Model Content

[0004] The purpose of this utility model is to provide a valve body cleaning device for machining electro-hydraulic valve groups in boom drills, in order to solve the problem mentioned in the background art that, due to the complex oil channels in the valve body, water and a small amount of powder particles remain in the valve body after cleaning. The existing cleaning methods are not only inefficient, but also cannot collect the fine powder particles uniformly, which easily pollutes the external environment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve body cleaning device for processing electro-hydraulic valve groups in boom drills, including a connecting seat, a negative pressure pipe, and a collection chamber. The negative pressure pipe passes through the connecting seat, and a quick connector is fixedly installed at one end of the negative pressure pipe. The quick connector is used to connect to the air supply pipe of the compressed air power source. The collection chamber is fixedly connected to the other end of the negative pressure pipe. A connector is provided at the lower end of the connecting seat, and the upper end of the connector is connected to the constriction section of the negative pressure pipe. The connector is used to connect to the electro-hydraulic valve body. A filter element and a filter screen are provided in the collection chamber. Both the filter element and the filter screen are used to filter out residual particles.

[0006] Based on the preferred embodiment of this technical solution, the filter screen consists of an annular mesh body and a bottom mounting plate. The annular mesh body is mounted on the bottom mounting plate, and the filter screen is fixed to the lower end of the collection chamber by the bottom mounting plate. The filter element is rotatably connected to the upper center of the bottom mounting plate. The filter element is used for coarse filtration, and the filter screen is used for fine filtration.

[0007] Based on the preferred embodiment of this technical solution, multiple blades are distributed in a circular array at the upper end of the filter element. When compressed air passes through the blades, the blades will drive the filter element to rotate.

[0008] Based on the preferred embodiment of this technical solution, a flow divider ring is fixedly connected inside the collection chamber. Multiple leaf-shaped baffles are distributed in a circular array at the upper end of the flow divider ring, and multiple exhaust ports are distributed in a circular array at the bottom of the flow divider ring. The leaf-shaped baffles are used to form flow channels, and the exhaust ports are used to control the flow direction of compressed gas.

[0009] In the preferred embodiment of this technical solution, the upper end of the flow divider ring is conical, and the discharge port is located directly above the blade.

[0010] Based on the preferred embodiment of this technical solution, a baffle plate is fixedly connected to the upper end of the filter element, and the edge of the baffle plate is in contact with the inner wall of the collection chamber. The baffle plate is used to block the airflow.

[0011] In the preferred embodiment of this technical solution, a rubber scraper is fixedly connected to the bottom of the filter element. The rubber scraper is located at the upper end of the filter screen ring and is attached to it. The rubber scraper is used to move the residue.

[0012] In this preferred embodiment of the technical solution, rubber handles are fitted at both ends of the negative pressure tube. The surfaces of the rubber handles have evenly distributed annular recesses adapted to the fingers, allowing the negative pressure tube to be used as a grip lever during installation. Compared with the prior art, the beneficial effects of this utility model are: 1. During the subsequent drying and residue removal of the valve body, the valve body cleaning device injects compressed air into the valve body through the two oil ports to achieve the effect of air washing, quickly removing residual moisture and residue particles inside the valve body. When the compressed air passes through the negative pressure pipe quickly, it will simultaneously suck in the moisture and residue particles and discharge them into the collection chamber. By combining negative pressure suction and positive air purging, the valve body cavity is quickly and thoroughly dried and the residue is recovered, solving the two problems of drying and residue treatment in one step.

[0013] 2. After water and residue enter the collection chamber, the filter element is used to filter out the larger particles of residue, and the filter screen is used to filter out the smaller particles of residue, thus achieving graded filtration. During the recovery process, compressed air will first pass through the blades, and the generated directional thrust will drive the filter element to rotate. Through centrifugal action, water will be accelerated to leave the surface of the filter element, preventing droplets from clogging the filter element and greatly reducing the liquid load on the filter element.

[0014] 3. During the rotation of the filter element, the rubber scraper at the bottom will also rotate simultaneously to continuously agitate the residue and moisture on the surface of the filter screen ring, preventing them from accumulating and causing a significant decrease in the filter screen's filtration performance. Attached Figure Description

[0015] Figure 1A schematic diagram of one embodiment of the valve body cleaning device for the electro-hydraulic valve assembly of the boom drill of this utility model; Figure 2 This is a schematic diagram of the connector distribution structure of this utility model; Figure 3 This is a cross-sectional view of the distribution structure of the filter element and rubber scraper of this utility model; Figure 4 This is a schematic diagram of the distribution structure of the filter element and filter screen of this utility model; Figure 5 This is a schematic diagram of the distribution structure of the blades and baffles of this utility model; Figure 6 This is a schematic diagram of the connection structure between the flow divider ring and the leaf-shaped partition of this utility model.

[0016] In the diagram: 1. Connecting seat; 2. Negative pressure pipe; 3. Quick connector; 4. Connector; 5. Collection chamber; 6. Rubber handle; 7. Diverter ring; 8. Filter element; 9. Filter screen; 10. Leaf-shaped baffle; 11. Drain port; 12. Blade; 13. Rubber scraper; 14. Baffle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-6 This utility model provides an embodiment of a valve body cleaning device for machining electro-hydraulic valve assemblies in boom drills. The device includes a connecting seat 1, a negative pressure pipe 2, and a collection chamber 5. The negative pressure pipe 2 passes through the connecting seat 1, and a quick connector 3 is fixedly installed at one end of the negative pressure pipe 2. The quick connector 3 is used to connect to the air supply pipe of a compressed air power source. The collection chamber 5 is fixedly connected to the other end of the negative pressure pipe 2. A connector 4 is provided at the lower end of the connecting seat 1, and the upper end of the connector 4 is connected to the contraction section of the negative pressure pipe 2. The connector 4 is used to connect to the electro-hydraulic valve body. A filter element 8 and a filter screen 9 are provided inside the collection chamber 5. Both filter element 8 and filter screen 9 are used to filter out residual particles. When the valve body is undergoing subsequent drying and residue cleaning, compressed air is injected into the valve body from the two oil ports to achieve the effect of air washing, quickly removing residual moisture and residue particles inside the valve body. When the compressed air passes through the negative pressure pipe 2 quickly, it will simultaneously suck in the moisture and residue particles and discharge them into the collection chamber 5. By combining negative pressure suction with positive air purging, the valve body cavity is quickly and thoroughly dried and the residue is recovered, solving the two problems of drying and residue treatment in one step.

[0019] Please see Figure 3 A further solution based on this embodiment is as follows: the filter screen 9 consists of an annular mesh body and a bottom mounting plate. The annular mesh body is mounted on the bottom mounting plate, and the filter screen 9 is fixed to the lower end of the collection chamber 5 by the bottom mounting plate. The filter element 8 is rotatably connected to the upper center of the bottom mounting plate. The filter element 8 is used for coarse filtration, and the filter screen 9 is used for fine filtration. After water and residue enter the collection chamber 5, the filter element 8 is used to filter out the larger particle size residue, and the filter screen 9 is used to filter out the smaller particle size residue, thereby achieving graded filtration and completing the recovery of residue.

[0020] Please see Figure 5 A further solution based on this embodiment is as follows: multiple blades 12 are distributed in a circumferential array at the upper end of the filter element 8. When compressed air passes through the blades 12, the blades 12 will drive the filter element 8 to rotate. During the residue recovery process, the compressed air will first pass through the blades 12, and the generated directional thrust will push the blades 12 to move. In this way, the filter element 8 will rotate. Through centrifugal action, the water will be accelerated to leave the surface of the filter element 8, preventing droplets from clogging the filter element 8 and greatly reducing the liquid load of the filter element 8.

[0021] Please see Figure 6 A further solution based on this embodiment is as follows: a flow divider ring 7 is fixedly connected inside the collection chamber 5. Multiple leaf-shaped baffles 10 are distributed in a circular array at the upper end of the flow divider ring 7, and multiple exhaust ports 11 are distributed in a circular array at the bottom of the flow divider ring 7. The leaf-shaped baffles 10 are used to form flow channels, and the exhaust ports 11 are used to control the flow direction of compressed gas. The flow divider ring 7 and the leaf-shaped baffles 10 are fixedly connected inside the collection chamber 5 to form flow channels, thereby dividing the compressed air into multiple flow directions with minimal interference between them. Then, the compressed gas is discharged downward from the exhaust ports 11, thereby dividing the compressed gas into multiple downward airflows. In this way, the blowing force on each blade 12 will be more uniform, thus avoiding mutual interference of airflows that could cause eddies and prevent the filter element 8 from rotating normally.

[0022] Please see Figure 6 A further solution based on this embodiment is: the upper end of the flow splitting ring 7 is conical, and the exhaust port 11 is located directly above the blade 12. The conical shape makes it easier to split the airflow compared to the plane, and the exhaust port 11 is located directly above to ensure that the blade 12 receives sufficient blowing force.

[0023] Please see Figure 5 A further solution based on this embodiment is as follows: a baffle plate 14 is fixedly connected to the upper end of the filter element 8. The edge of the baffle plate 14 is attached to the inner wall of the collection chamber 5. The baffle plate 14 is used to block the airflow and to block the compressed gas, so as to prevent the airflow from flowing back when passing through the filter screen 9, causing the downward airflow and the upward airflow to interfere with each other, making the filter element 8 unable to rotate normally.

[0024] Please see Figure 3A further solution based on this embodiment is as follows: A rubber scraper 13 is fixedly connected to the bottom of the filter element 8. The rubber scraper 13 is located at the upper end of the annular mesh of the filter screen 9 and is attached to it. The rubber scraper 13 is used to drive the movement of residue. During the rotation of the filter element 8, the rubber scraper 13 at its bottom will rotate at the same time to continuously stir the residue and water accumulated on the surface of the annular mesh of the filter screen 9, so as to prevent the accumulation of residue and water residue from causing the filtration performance of the filter screen 9 to drop significantly.

[0025] Please see Figure 1 A further solution based on this embodiment is as follows: both ends of the negative pressure tube 2 are fitted with rubber handles 6. The surface of the rubber handles 6 is evenly distributed with annular recesses that fit the fingers. During installation, the negative pressure tube 2 is used as a grip lever, which makes it more convenient and less strenuous to install the connector 4.

[0026] Working principle: After the valve body is cleaned, when subsequent drying and residue removal are required, first connect the two air supply pipes of the compressed air power source to one oil port and quick connector 3 of the valve body respectively. Then install connector 4 at the other oil port of the valve body. This completes the preparation work.

[0027] When the compressed air power source is turned on, compressed air is injected into the valve body through the two oil ports, thereby achieving the effect of air washing and quickly removing residual moisture and residue particles inside the valve body. When the compressed air passes through the negative pressure pipe 2 quickly, it will simultaneously draw moisture and residue particles into the negative pressure pipe 2 and discharge them into the collection chamber 5. By combining negative pressure suction and positive air purging, the valve body cavity is quickly and thoroughly dried and residue is recovered, solving the two problems of drying and residue treatment in one step.

[0028] After moisture and residue enter the collection chamber 5, the filter element 8 is used to filter out the larger particles of residue, and the filter screen 9 is used to filter out the smaller particles of residue, thereby achieving graded filtration and completing the recycling of residue.

[0029] During the residue recovery process, compressed air first passes through blade 12, and the generated directional thrust pushes blade 12 to move, thus enabling filter element 8 to rotate. Centrifugal action accelerates the removal of water from the surface of filter element 8, preventing droplets from clogging filter element 8 and greatly reducing the liquid load on filter element 8.

[0030] Inside the collection chamber 5, a flow divider ring 7 is fixedly connected, and a leaf-shaped baffle 10 is used to form a flow channel, thereby dividing the compressed air into multiple flow directions with minimal interference between them. Then, it is discharged downward from the outlet 11, thus dividing the compressed gas into multiple downward airflows. This makes the blowing force on each blade 12 more uniform, thus avoiding mutual interference of airflows that could cause eddies and prevent the filter element 8 from rotating normally.

[0031] During the rotation of the filter element 8, the rubber scraper 13 at its bottom will rotate simultaneously to continuously agitate the residue and water accumulated on the surface of the annular mesh of the filter screen 9, preventing the accumulation of residue and water residue from causing a significant decrease in the filtration performance of the filter screen 9.

[0032] The baffle 14 is used to block compressed gas and prevent backflow when the airflow passes through the filter screen 9, which would cause the downward airflow and the upward airflow to interfere with each other, making the filter element 8 unable to rotate normally. In addition, when disassembling and replacing the filter element 8, the baffle 14 can also scrape off the residue on the inner wall of the collection chamber 5.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve body cleaning device for machining electro-hydraulic valve assemblies in boom drills, comprising a connecting seat (1), characterized in that: It also includes a negative pressure pipe (2) and a collection chamber (5). The negative pressure pipe (2) is installed through the connecting seat (1). A quick connector (3) is fixedly installed at one end of the negative pressure pipe (2). The quick connector (3) is used to connect the air supply pipe of the compressed air power source. The collection chamber (5) is fixedly connected to the other end of the negative pressure pipe (2). A connector (4) is provided at the lower end of the connecting seat (1). The upper end of the connector (4) is connected to the contraction section of the negative pressure pipe (2). The connector (4) is used to connect the electro-hydraulic valve body. A filter element (8) and a filter screen (9) are provided in the collection chamber (5). Both the filter element (8) and the filter screen (9) are used to filter out residual particles.

2. The valve body cleaning device for machining the electro-hydraulic valve assembly of the boom drill according to claim 1, characterized in that: The filter screen (9) consists of an annular mesh and a bottom mounting plate. The annular mesh is mounted on the bottom mounting plate. The filter screen (9) is fixed to the lower end of the collection chamber (5) by the bottom mounting plate. The filter element (8) is rotatably connected to the upper center of the bottom mounting plate. The filter element (8) is used for coarse filtration, and the filter screen (9) is used for fine filtration.

3. The valve body cleaning device for machining the electro-hydraulic valve assembly of the boom drill according to claim 2, characterized in that: The filter element (8) has multiple blades (12) arranged in a circular array at the upper end. When compressed air passes through the blades (12), the blades (12) will drive the filter element (8) to rotate.

4. The valve body cleaning device for machining the electro-hydraulic valve assembly of the boom drill according to claim 3, characterized in that: A flow divider ring (7) is fixedly connected inside the collection chamber (5). Multiple leaf-shaped baffles (10) are distributed in a circular array at the upper end of the flow divider ring (7), and multiple exhaust ports (11) are distributed in a circular array at the bottom of the flow divider ring (7). The leaf-shaped baffles (10) are used to form flow channels, and the exhaust ports (11) are used to control the flow direction of compressed gas.

5. The valve body cleaning device for machining the electro-hydraulic valve assembly of the boom drill according to claim 4, characterized in that: The upper end of the flow divider ring (7) is conical, and the outlet (11) is located directly above the blade (12).

6. The valve body cleaning device for machining the electro-hydraulic valve assembly of the boom drill according to claim 5, characterized in that: A baffle plate (14) is fixedly connected to the upper end of the filter element (8). The edge of the baffle plate (14) is attached to the inner wall of the collection chamber (5). The baffle plate (14) is used to block the airflow.

7. The valve body cleaning device for machining the electro-hydraulic valve assembly of the boom drill according to claim 6, characterized in that: A rubber scraper (13) is fixedly connected to the bottom of the filter element (8). The rubber scraper (13) is located at the upper end of the annular mesh of the filter screen (9) and is attached to it. The rubber scraper (13) is used to move the residue.

8. The valve body cleaning device for machining the electro-hydraulic valve assembly of the boom drill according to claim 6, characterized in that: Both ends of the negative pressure tube (2) are fitted with rubber handles (6). The surface of the rubber handles (6) is evenly distributed with annular recesses that fit the fingers. During installation, the negative pressure tube (2) is used as a grip lever.

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