A grinding fluid circulation filtration device

Abstract

This utility model discloses a grinding fluid circulation and filtration device, comprising two identical pump sets, a noise reduction component, a conveying component, and a filtration component. The noise reduction component is mounted on the pump sets, the conveying component connects the two pump sets, and the filtration component is mounted on the conveying component. The pump sets include a base and pump bodies (main and auxiliary pump bodies). The noise reduction component has a hinged soundproof cover, which is a double-layer steel plate structure (filled with sound-absorbing material) and has heat dissipation holes with inclined blades. The conveying component includes a main pipe A, a branch pipe A, a main pipe B, and a branch pipe B. A monitoring component containing an electromagnetic flow meter, a pressure sensor, and valve B is mounted on branch pipe B. This device improves reliability through parallel operation of the two pump sets, provides sound insulation and heat dissipation through the noise reduction component, and offers efficient filtration and easy drainage through the filtration component. Combined with the monitoring and control component, it achieves precise flow and pressure regulation, making it suitable for circulating and filtering grinding fluid in internal gear grinding.

Description

Technical Field

[0001] This utility model relates to the field of grinding fluid filtration technology, and in particular to a grinding fluid circulation filtration device. Background Technology

[0002] During the internal gear grinding process, grinding operations generate a large amount of impurities such as grinding shavings, grinding wheel particles, and metal powder. If these impurities mix with the grinding fluid and are not filtered effectively in time, they will re-enter the machining area with the circulating grinding fluid. This not only easily scratches the tooth surface of the internal gear and reduces machining accuracy, but also accelerates the wear of key components of the grinding equipment, shortening the equipment's service life. At the same time, traditional grinding fluid filtration devices often suffer from problems such as insufficient reliability of single-pump operation (easily causing downtime due to malfunctions and affecting production), inconvenient cleaning of filter components, high operating noise, and low accuracy in flow and pressure control, making it difficult to meet the requirements of efficient and stable internal gear grinding.

[0003] Therefore, a grinding fluid circulation filtration device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding fluid circulation and filtration device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] A grinding fluid circulation filtration device, comprising:

[0007] Two identical pump units are provided, each equipped with a noise reduction component to reduce noise generated during operation. A conveying assembly is provided between the two pump units to enable parallel operation. This conveying assembly is equipped with a filter component to filter impurities in the grinding fluid.

[0008] The delivery assembly includes a main conduit A connected to the grinding fluid storage device, two filter assemblies are provided on the main conduit A, and a branch conduit A is provided between the filter assembly and the pump assembly mechanism;

[0009] It also includes a main conduit B connected to the grinding fluid circulation system, a branch conduit B between the main conduit B and the pump assembly, and a monitoring component on the branch conduit B.

[0010] As a preferred technical solution, the pump assembly includes a base, and a pump body is installed on the top of the base. One of the pump bodies is a main pump body, and the other is a secondary pump body. The inlet end of the pump body is connected to a corresponding branch pipe A, and the outlet end of the pump body is connected to the main pipe B through the branch pipe B. A fluid channel is formed between the main pipe A, the branch pipe A, the pump body, the branch pipe B, and the main pipe B.

[0011] As a preferred technical solution, the noise reduction component includes two soundproof covers hinged to the top of the base. The two soundproof covers are interlocked and fixed by bolts and nuts. The soundproof covers are provided with heat dissipation holes, and blades are fixedly connected to the inner cavity of the heat dissipation holes at an incline.

[0012] As a preferred technical solution, the soundproof cover adopts an inner and outer double-layer steel plate structure. The outer steel plate structure is a high-strength cold-rolled steel plate, and the inner steel plate structure is a perforated steel plate. The space between the inner and outer double-layer steel plates is filled with sound-absorbing material, which is either glass fiber cotton or polyester fiber sound-absorbing board.

[0013] As a preferred technical solution, the filtration assembly includes a housing connected between the main pipe A and the branch pipe A, and a filter screen is installed in the inner cavity of the housing.

[0014] As a preferred technical solution, the bottom of the shell is connected to a drain pipe, and the bottom end of the drain pipe is threadedly connected to a sludge collection cylinder.

[0015] As a preferred technical solution, valve A is installed on the sewage pipe, branch pipe B and branch pipe A, and valve A is a shut-off valve.

[0016] As a preferred technical solution, the monitoring component includes an electromagnetic flow meter, a pressure sensor, and a valve B installed on the branch pipe B and arranged sequentially along the fluid flow direction. The valve B is a linear regulating valve.

[0017] This utility model has at least the following beneficial effects:

[0018] The grinding fluid circulation filtration device of this invention achieves multiple technical advantages through the coordinated design of its components:

[0019] 1. Improve operational reliability: The dual-pump system (including a main pump and an auxiliary pump) is adopted, and parallel operation is achieved through branch pipe A and branch pipe B of the conveying components. If a single pump fails, it can be switched to the other pump to continue working, avoiding production interruption due to equipment downtime.

[0020] 2. Enhanced noise reduction effect: The noise reduction component features a double-layer steel plate structure soundproof cover (outer layer of high-strength cold-rolled steel plate, inner layer of perforated steel plate, and 50-80mm thick glass fiber cotton or polyester fiber sound-absorbing board in between), combined with the heat dissipation holes of the inclined blades. This ensures heat dissipation of the pump body while significantly absorbing operating noise and reducing interference with the working environment. Furthermore, the soundproof cover is fixed by hinges and bolts, facilitating quick opening for pump body maintenance.

[0021] 3. High-efficiency filtration and convenient maintenance: The filter screen of the filter assembly can effectively intercept impurities in the grinding fluid, preventing them from entering the pump body and reducing wear on parts; the drain pipe at the bottom of the housing works in conjunction with the threaded collection cylinder, and can be controlled by valve A on the drain pipe to easily clean the trapped impurities and reduce maintenance costs.

[0022] 4. Precise control and automated operation: The valves A (shut-off type) and B (linear adjustment type) of the conveying component work together with the electromagnetic flow meter and pressure sensor of the monitoring component to collect flow and pressure data in real time; after receiving the data, the controller automatically adjusts the pump speed and valve opening to achieve precise control of the grinding fluid flow and pressure, thereby improving operational stability and adaptability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the grinding fluid circulation filtration device of this utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the grinding fluid circulation filtration device of this utility model. Figure 2 ;

[0025] Figure 3 This is a partial structural schematic diagram of the grinding fluid circulation and filtration device of this utility model;

[0026] Figure 4 This is a cross-sectional view of the filter assembly of this utility model.

[0027] In the diagram: 100, Pump assembly; 110, Base; 120, Pump body; 200, Noise reduction component; 210, Sound insulation cover; 220, Heat dissipation hole; 230, Blade; 300, Conveying assembly; 310, Main pipe A; 320, Branch pipe A; 330, Main pipe B; 340, Branch pipe B; 400, Filter assembly; 410, Housing; 420, Filter screen; 430, Sewage pipe; 440, Sewage collection cylinder; 500, Valve A; 600, Electromagnetic flow meter; 700, Pressure sensor; 800, Valve B. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1 - Figure 4This utility model provides a grinding fluid circulation and filtration device, including two identical pump sets 100, a noise reduction component 200 for reducing noise generated during operation, a conveying component 300 for connecting the two pump sets 100 in parallel, and a filtering component 400 for filtering impurities in the grinding fluid. The noise reduction component 200 is disposed on the pump sets 100, the conveying component 300 is disposed between the two pump sets 100, and the filtering component 400 is disposed on the conveying component 300. The conveying component 300 includes a main conduit A310 connected to a grinding fluid storage or supply device, two filtering components 400 are provided on the main conduit A310, and a branch conduit A320 is provided between the filtering component 400 and the pump set 100. It also includes a main conduit B330 connected to a grinding fluid circulation system, a branch conduit B340 is provided between the main conduit B330 and the pump set 100, and a monitoring component is provided on the branch conduit B340.

[0030] The pump assembly 100 includes a base 110, and a pump body 120 is mounted on the top of the base 110. One pump body 120 is a main pump body, and the other pump body 120 is a secondary pump body. The inlet end of the pump body 120 is connected to the corresponding branch pipe A320, and the outlet end of the pump body 120 is connected to the main pipe B330 through a branch pipe B340. A fluid channel is formed between the main pipe A310, the branch pipe A320, the pump body 120, the branch pipe B340, and the main pipe B330.

[0031] The noise reduction component 200 includes two soundproof covers 210 hinged to the top of the base 110. The two soundproof covers 210 are interlocked and fixed by bolts and nuts. The soundproof covers 210 are provided with heat dissipation holes 220. The inner cavity of the heat dissipation holes 220 is inclined and fixedly connected with blades 230. The noise reduction component 200 can achieve effective heat dissipation while ensuring sound insulation effect, ensuring that the heat generated by the pump unit 100 during operation can be dissipated in time and maintaining the normal operating temperature of the pump unit 100. By unscrewing the bolts on the soundproof cover 210, the soundproof cover 210 can be flipped open to expose the pump body 120, which is convenient for maintenance and repair of the pump body 120.

[0032] The soundproof enclosure 210 adopts a double-layer steel plate structure. The outer steel plate structure is a high-strength cold-rolled steel plate, which plays a protective role. The inner steel plate structure is a perforated steel plate with a perforation rate controlled at 15% to 20%, which can ensure a certain acoustic transmission loss and provide a basic channel for ventilation and heat dissipation. The space between the inner and outer double-layer steel plates is filled with sound-absorbing material, which is either glass fiber cotton or polyester fiber sound-absorbing board with a thickness of 50 to 80 mm, to absorb the noise generated by the operation of the pump unit mechanism 100.

[0033] The filter assembly 400 includes a housing 410 connected between the main pipe A310 and the branch pipe A320. A filter screen 420 is installed in the inner cavity of the housing 410. The filter screen 420 can filter the grinding fluid entering the pump assembly 100, effectively intercepting impurities in the grinding fluid and preventing them from entering the pump body 120. This reduces wear on the pump body 120 parts, improves the reliability and durability of the pump assembly 100, and reduces equipment maintenance costs.

[0034] The bottom of the housing 410 is connected to a drain pipe 430, and the bottom end of the drain pipe 430 is threaded to a collection cylinder 440. The use of the drain pipe 430 and the collection cylinder 440 makes it easy to clean the impurities trapped by the filter screen 420.

[0035] Valve A500 is installed on drain pipe 430, branch pipe B340, and branch pipe A320. Valve A500 is a shut-off valve (such as a gate valve or ball valve), emphasizing sealing reliability and rapid response capability. The actuator usually has a fail-safe function (such as automatic shutdown in case of power failure). Valve A500 on branch pipe A320 can control the entry of grinding fluid into pump body 120, which is convenient for equipment start-up, shutdown, and maintenance. Valve A500 on branch pipe B340 can adjust the output flow and pressure according to actual needs. Valve A500 on drain pipe 430 is used to control the opening and closing of the drain outlet to achieve controlled discharge of impurities. Electromagnetic flow meter 600 and pressure sensor 700 accurately measure flow data and pressure signals and feed them back to the controller, enabling the controller to automatically adjust the working status of each component according to preset parameters, thereby achieving precise control of the operating parameters of pump unit 100 and greatly improving the stability and adaptability of operation.

[0036] The monitoring components include an electromagnetic flowmeter 600, a pressure sensor 700, and a valve B800, which are installed on the branch pipe B340 and arranged sequentially along the fluid flow direction. The valve B800 is a linear regulating valve (such as a butterfly valve or a piston valve), which is required to have a high-precision flow characteristic curve and good regulating linearity. It is usually equipped with an electric or pneumatic actuator and supports continuous regulation.

[0037] It also includes a control box, which houses a controller. The controller is electrically connected to the pump body 120, valve A500, electromagnetic flowmeter 600, pressure sensor 700, and valve B800. The controller can automatically control the opening degree of valve B800, the rotation speed of pump body 120, and the opening, closing, and adjustment of valve A500 based on the pressure signal detected by pressure sensor 700, the flow data fed back by electromagnetic flowmeter 600, and preset pressure and flow values.

[0038] The electromagnetic flowmeter 600 can be the EMF-300C model from Jinhu Huanghe Automation Instrument Factory. This model has a measurement range of 0-20000 m³ / h, which is well-suited to the flow output range of the pump unit 100, ensuring accurate measurement of grinding fluid flow under different operating conditions. Its power supply voltage supports 220VAC, 24VDC, and 3.6V lithium batteries, allowing for flexible selection based on site power conditions, enhancing the equipment's applicability in various environments. The pipe diameter adaptation range is DN50-DN3000, enabling effective connection with branch pipe B340. Furthermore, if the electrode material of this model is made of 316L stainless steel, it can effectively resist corrosive components that may be present in the grinding fluid, ensuring long-term stable measurement performance. The pressure sensor 700 can be the Keyence GP-M series high-performance digital pressure sensor. This series can detect both liquid and gas pressure, and its flush-mounted sensing part effectively avoids clogging caused by impurities in the grinding fluid environment, achieving maintenance-free operation. During operation, it can accurately sense pressure changes in the grinding fluid within the pipeline, providing reliable pressure data feedback to the system. It also boasts high durability and adaptability to complex working environments. The controller can be an Omron CP1H series programmable controller. The CP1H is equipped with 4-axis pulse input / output, possessing high functionality and meeting the requirements for precise control of the grinding fluid circulation filtration device and related equipment. Its newly added built-in Ethernet model (CP1H-EX series) features an Ethernet port, facilitating data communication with other devices or host computers, enabling remote monitoring and operation, and improving the automation level of the entire grinding fluid circulation filtration system.

[0039] The working principle of this utility model is as follows:

[0040] When the device is running, the grinding fluid flows in from the main conduit A310 connected to the storage / supply device. It is first filtered by the filter screen 420 in the housing 410 of the two filter components 400 to intercept impurities. Then, it enters the pump body 120 (main pump body or auxiliary pump body) of the pump group mechanism 100 through the branch pipe A320. After the pump body 120 pressurizes the grinding fluid, it is delivered to the main pipe B330 through the branch pipe B340 and finally enters the grinding fluid circulation system.

[0041] During the process, the electromagnetic flowmeter 600 on branch pipe B340 measures the flow rate in real time, and the pressure sensor 700 monitors the pressure, and feeds the data back to the controller in the control box. The controller compares the measured data with the preset parameters. If the flow rate or pressure does not meet the standards, it automatically adjusts the opening of valve B800, the speed of pump 120, and the opening of valve A500 on branch pipe A320 and branch pipe B340 to ensure the stability of the grinding fluid parameters.

[0042] During maintenance, the controller closes valve A500 on branch pipe A320 and branch pipe B340 to block the liquid flow. Unscrew the fixing bolts of the soundproof cover 210 and flip it open to inspect the pump body 120. When cleaning the filter assembly 400, the controller closes the relevant valve A500 and then opens valve A500 on the drain pipe 430. Impurities fall into the collection cylinder 440 through the drain pipe 430. Unscrew the collection cylinder 440 to empty the impurities and complete the sewage discharge.

[0043] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model 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 this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding fluid circulation filtering device characterized by, include: Two identical pump assembly units (100) are provided, each equipped with a noise reduction component (200) to reduce noise generated during operation. A conveying assembly (300) is provided between the two pump assembly units (100) to achieve parallel connection. The conveying assembly (300) is equipped with a filter assembly (400) for filtering impurities in the grinding fluid. The delivery assembly (300) includes a main conduit A (310) connected to the grinding fluid storage device, and two filter assemblies (400) are provided on the main conduit A (310). A branch conduit A (320) is provided between the filter assembly (400) and the pump assembly (100). It also includes a main conduit B (330) connected to the grinding fluid circulation system, and a branch conduit B (340) is provided between the main conduit B (330) and the pump assembly (100), and a monitoring component is provided on the branch conduit B (340).

2. The grinding fluid circulation filter apparatus according to claim 1, characterized by: The pump assembly (100) includes a base (110), on the top of which a pump body (120) is mounted. One of the pump bodies (120) is a main pump body, and the other pump body (120) is a secondary pump body. The inlet end of the pump body (120) is connected to the corresponding branch pipe A (320), and the outlet end of the pump body (120) is connected to the main pipe B (330) through a branch pipe B (340). A fluid channel is formed between the main pipe A (310), the branch pipe A (320), the pump body (120), the branch pipe B (340), and the main pipe B (330).

3. The abrasive slurry circulating filter apparatus according to claim 2, wherein: The noise reduction component (200) includes two soundproof covers (210) hinged to the top of the base (110). The two soundproof covers (210) are interlocked and fixed by bolts and nuts. The soundproof cover (210) is provided with heat dissipation holes (220). The inner cavity of the heat dissipation hole (220) is inclined and fixedly connected with blades (230).

4. The abrasive slurry circulating filter apparatus according to claim 3, wherein: The soundproof cover (210) adopts an inner and outer double-layer steel plate structure. The outer steel plate structure is a high-strength cold-rolled steel plate, and the inner steel plate structure is a perforated steel plate. The space between the inner and outer double-layer steel plates is filled with sound-absorbing material, which is either glass fiber cotton or polyester fiber sound-absorbing board.

5. The abrasive slurry circulating filter apparatus of claim 1, wherein: The filter assembly (400) includes a housing (410) communicating between a main pipe A (310) and a branch pipe A (320), and a filter screen (420) is installed in the inner cavity of the housing (410).

6. The abrasive slurry circulating filter apparatus of claim 5, wherein: The bottom of the housing (410) is connected to a drain pipe (430), and the bottom end of the drain pipe (430) is threadedly connected to a sludge collection cylinder (440).

7. The abrasive slurry circulating filter apparatus of claim 6, wherein: Valves A (500) are installed on the sewage pipe (430), branch pipe B (340) and branch pipe A (320), and valves A (500) are shut-off valves.

8. The abrasive slurry circulating filter apparatus according to any one of claims 1 to 7, characterized by: The monitoring components include an electromagnetic flowmeter (600), a pressure sensor (700), and a valve B (800) installed on branch pipe B (340) and arranged sequentially along the fluid flow direction. The valve B (800) is a linear regulating valve.

Images