A construction device for anchoring agent with gear pump quantitative pumping and sealing replacement function

Abstract

The utility model discloses a kind of sealing replacement function's gear pump quantitative pumping anchoring agent construction device, it is related to grouting equipment field, technical scheme is, including rack, two groups of anchoring agent pumping mechanism are set on rack, anchoring agent pumping mechanism side on the rack still be provided with plugging agent pumping mechanism, the liquid outlet of two groups of anchoring agent pumping mechanism and plugging agent pumping mechanism is communicated mixing valve by hose, and the outlet section of mixing valve is communicated mixing pipe;Rack still set control cabinet, control cabinet is used to control two anchoring agent pumping mechanism and plugging agent pumping mechanism work.The utility model has beneficial effect: using hydraulic drive mode, power source is directly taken from host equipment, need not additional configuration, effectively simplify system composition, reduce cost;Gear pump not only simple structure, easy to maintain, and have the characteristics of forced fixed proportion, can realize the efficient mixing of material.

Description

Technical Field

[0001] This utility model relates to the field of grouting equipment, and in particular to a gear pump quantitative pumping device for anchoring agent construction with sealing and replacement function. Background Technology

[0002] Anchoring agent pumping technology is widely used in fields such as mine support and tunnel construction. Its core is to mix materials such as resin and catalyst in a certain proportion and then inject them into the anchor bolt hole to form a high-strength anchor body.

[0003] Existing equipment typically employs a single-pump structure, making it difficult to precisely control the mixing ratio of two-component materials. The simple design of the mixing valve leads to uneven material mixing, resulting in unreacted areas and reduced anchoring strength. For anchoring agents with different reaction rates (such as fast-setting and slow-setting agents), current technology lacks effective compartmentalized storage and independent pumping mechanisms, leading to cross-contamination or pre-reaction risks and limiting the equipment's versatility and reliability. Furthermore, post-construction pipeline cleaning relies on manual operation, and residual materials easily solidify and clog, increasing maintenance costs. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a gear pump metering device for conveying anchoring agent with a sealing and replacement function.

[0005] The technical solution includes a frame, on which two sets of anchoring agent pumping mechanisms are installed. A sealing agent pumping mechanism is also installed on one side of the frame located on the anchoring agent pumping mechanism. The outlet ends of the two sets of anchoring agent pumping mechanisms and sealing agent pumping mechanisms are connected to a mixing valve via hoses, and the outlet section of the mixing valve is connected to a mixing pipe; The frame is also equipped with a control cabinet, which is used to control the operation of the two anchoring agent pumping mechanisms and the sealing agent pumping mechanism.

[0006] Preferably, the sealing agent pumping mechanism includes a material cylinder fixedly mounted on a frame, a hydraulic cylinder fixedly mounted at the lower end of the material cylinder, and a plunger pump fixedly mounted at the lower end of the material cylinder. The inlet end of the plunger pump is located inside the material cylinder, the outlet end of the plunger pump is located outside the material cylinder, and the plunger of the plunger pump is fixedly connected to the piston of the hydraulic cylinder.

[0007] Preferably, the anchoring agent pumping mechanism includes a housing fixed on the frame, a hydraulic motor fixedly disposed in the middle of the housing, and a drive gear coaxially fixedly disposed on the output shaft of the hydraulic motor, the drive gear being located inside the housing; Two driven gears are rotatably disposed inside the housing, and the two driven gears are respectively located on both sides of the driving gear and mesh with the driving gear. A gear pump is fixedly installed on the housing on both sides of the hydraulic motor, and the drive shaft of the gear pump is coaxially fixed with an adjacent driven gear.

[0008] Preferably, a shift fork is fixedly mounted on the piston rod of the hydraulic cylinder, and a pull rod is fixedly mounted on the shift fork, with one end of the pull rod extending into the inside of the material cylinder; A stirring rod is rotatably mounted on the lower part of the material cylinder, and a swing arm is fixedly mounted on the rotation shaft of the stirring rod. The movable end of the swing arm is connected to the movable end of the pull rod.

[0009] Preferably, a sensor mounting plate is also fixedly mounted on the cylinder body of the hydraulic cylinder, and two proximity switches are fixedly mounted on the sensor mounting plate, with the sensing ends of the proximity switches facing the piston rod of the hydraulic cylinder.

[0010] Preferably, the frame is also equipped with three solenoid valves, each of which controls the operation of two sets of anchoring agent pumping mechanisms and sealing pumps.

[0011] The beneficial effects of the technical solution provided by this utility model embodiment are: 1. The hydraulic drive method is adopted, and the power source is directly taken from the host equipment. No additional configuration is required, which effectively simplifies the system structure and reduces costs.

[0012] 2. Gear pumps are not only simple in structure and easy to maintain, but also have the characteristic of forced fixed ratio, which can achieve efficient mixing of materials.

[0013] 3. Each stroke of the gear pump and plunger pump has a fixed volume, which facilitates quantitative operation. It can be programmed according to actual needs to flexibly meet different production requirements.

[0014] 4. The plugging pump is specifically designed for plugging agents, has high compatibility with plugging agents, and ensures the plugging effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the sealing agent pumping mechanism according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the inside of the cylinder of the sealing agent pumping mechanism according to an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the anchoring agent pumping mechanism according to an embodiment of the present invention.

[0020] The attached figures are labeled as follows: 1. Frame; 2. Anchoring agent pumping mechanism; 3. Sealing agent pumping mechanism; 4. Cylinder; 5. Hydraulic cylinder; 6. Piston pump; 7. Control cabinet; 8. Housing; 9. Hydraulic motor; 10. Drive gear; 11. Driven gear; 12. Gear pump; 13. Shift fork; 14. Pull rod; 15. Stirring rod; 16. Swing arm; 17. Sensor mounting plate; 18. Proximity switch; 19. Solenoid valve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0022] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1 See Figures 1 to 5This utility model provides a gear pump quantitative pumping device for anchoring agent construction with sealing and replacement function, including a frame 1, two sets of anchoring agent pumping mechanisms 2 are arranged on the frame 1, and a sealing agent pumping mechanism 3 is also arranged on the frame 1 on one side of the anchoring agent pumping mechanism 2. The outlet ends of the two sets of anchoring agent pumping mechanisms 2 and sealing agent pumping mechanisms 3 are connected to the mixing valve through hoses, and the outlet section of the mixing valve is connected to the mixing pipe; The mixing pipe is connected to the anchor bolts or anchor cables of the construction hole. The appropriate grouting pump is selected according to different construction scenarios. The mixing valve and mixing pipe adopt existing technology, which will not be described in detail here. The flow path of the A and B mixture is extended by the mixing pipe. The mixing core is set in the mixing pipe to ensure that the two-component materials are fully mixed, avoid local unreacted areas, and improve the consistency of the curing strength of the anchoring agent. After grouting is completed, a sealing agent is injected into the mixing valve and mixing pipe to replace the anchoring agent and the residual grout in the pumping pipeline. The frame 1 is also equipped with a control cabinet 7, which is used to control the operation of the two anchoring agent pumping mechanisms 2 and the sealing agent pumping mechanism 3.

[0026] The sealing agent pumping mechanism 3 includes a cylinder 4 fixedly mounted on the frame 1, a hydraulic cylinder 5 fixedly mounted at the lower end of the cylinder 4, and a plunger pump 6 fixedly mounted at the lower end of the cylinder 3. The inlet end of the plunger pump 6 is located inside the cylinder 3, and the outlet end of the plunger pump 6 is located outside the cylinder 4. The plunger of the plunger pump 6 is fixedly connected to the piston of the hydraulic cylinder 5.

[0027] After grouting is completed, switch to the sealing mode through control cabinet 7. The sealing agent is pre-filled in the material cylinder 4. The hydraulic cylinder 5 is started, driving the plunger pump 6 to draw the sealing agent from the material cylinder 4 into the cavity of the plunger pump 6. The hydraulic cylinder 5 pushes the piston of the plunger pump 6 to pressurize and pump out the sealing agent, which is then transported to the mixing valve through the pipeline to replace the grouting material in the mixing valve and mixing pipe. The sealing and grouting operations are seamlessly integrated, eliminating the need for disassembling pipelines for manual cleaning, thus shortening the single construction cycle and improving construction efficiency; The sealing pump is independent of the grouting system and is dedicated to seal replacement, avoiding cross-contamination or wear caused by the grouting pump participating in the cleaning process.

[0028] The anchoring agent pumping mechanism 2 includes a housing 8 fixed on the frame 1. A hydraulic motor 9 is fixedly installed in the middle of the housing 8. A drive gear 10 is coaxially fixed on the output shaft of the hydraulic motor 9. The drive gear 10 is located inside the housing 8. Two driven gears 11 are rotatably disposed inside the housing 8. The two driven gears 11 are located on both sides of the driving gear 10 and mesh with the driving gear 10 respectively. A gear pump 12 is fixedly installed on the housing 8 on both sides of the hydraulic motor 9. The drive shaft of the gear pump 12 is coaxially fixed with an adjacent driven gear 11.

[0029] One set of anchoring agent pumping mechanisms 2 is a high-flow anchoring agent pumping mechanism 2, and the other set is a low-flow anchoring agent pumping mechanism 2. The feed ends of the two gear pumps 12 of the low-flow anchoring agent pumping mechanism 2 are connected to the slow-reaction anchoring agent silo through pipelines, and the feed ends of the two gear pumps 12 of the high-flow anchoring agent pumping mechanism 2 are connected to the fast-reaction anchoring agent silo through pipelines. The discharge ends of the gear pumps 12 of the low-flow anchoring agent pumping mechanism 2 and the high-flow anchoring agent pumping mechanism 2 are connected to the mixing valve through high-pressure hoses.

[0030] The slow-reaction anchoring agent silo includes slow-reaction components A and B, and the fast-reaction anchoring agent silo includes fast-reaction components A and B. The fast-reaction component A is a highly active resin-based component, the fast-reaction component B is a powerful catalyst, the slow-reaction component A is a low-activity epoxy resin-based component, and the slow-reaction component B is a slow-release catalyst. Material A and Material B are pumped to the mixing valve by gear pump 12. After being fully mixed and reacted in the mixing valve and mixing pipe, they are injected into the anchor rod or anchor cable. The target value of the number of rotations of the hydraulic motor 9 is set by the control cabinet 7. The flow rate pumped by the gear pump 12 is constant for each rotation. By controlling the actual number of rotations of the hydraulic motor 9, the pumping flow rate of materials A and B is adjusted. Based on the correspondence between the number of rotations of the hydraulic motor 9 and the number of rotations of the gear pump, and combined with the fixed parameters of the pumping flow rate per rotation of the gear pump 12, the actual pumping amount of materials A and B is calculated in real time and precisely controlled. Through the action of the driving gear 10 and the driven gear 11, a hydraulic motor 9 can synchronously drive two gear pumps 12 to operate synchronously, so that materials A and B are pumped out in equal proportions, and materials A and B are pumped to the mixing valve 5. The gear pump features an independent feed design to avoid cross-contamination between materials A and B, ensuring the purity of materials A and B in the silo and preventing premature reaction between materials A and B before pumping, thus ensuring the stability of the chemical ratio.

[0031] The flow rate of the gear pump 12 in the high-flow anchoring agent pumping mechanism 2 is greater than the flow rate of the gear pump 12 in the low-flow anchoring agent pumping mechanism 2.

[0032] The high-flow anchoring agent pumping mechanism 2 utilizes the high-flow characteristic of the gear pump 12 to quickly pump a large amount of A and B materials during grouting, rapidly filling the anchor bolt holes. By designing a difference in grouting pump flow rates between the high-flow anchoring agent pumping mechanism 2 and the low-flow anchoring agent pumping mechanism 2, construction efficiency, control accuracy, and system reliability can be significantly improved. The dual-pump combination covers all working conditions from high flow rate to low flow rate, solving the contradiction between efficiency and accuracy that traditional single pumps or dual pumps of the same diameter cannot balance. It is especially suitable for scenarios with stringent grouting quality requirements, such as mines and tunnels.

[0033] A fork 13 is fixedly mounted on the piston of the hydraulic cylinder 5, and a pull rod 14 is fixedly mounted on the fork 13. One end of the pull rod 14 extends into the inside of the material cylinder 4. A stirring rod 15 is rotatably mounted on the lower part of the material cylinder 4, and a swing arm 16 is fixedly mounted on the rotating shaft of the stirring rod 15. The movable end of the swing arm 16 is connected to the movable end of the pull rod 14.

[0034] After the device is running, the piston rod of the hydraulic cylinder 5 drives the fork 13 fixed thereon to move. The fork 13 pulls the pull rod 14, causing the pull rod 14 to move inside the material cylinder 4. The movable end of the pull rod 14 is connected to the movable end of the swing arm 16. Therefore, the displacement of the pull rod 14 will drive the swing arm 16 to rotate around the rotation axis of the stirring rod 15, thereby driving the stirring rod 15 to rotate at the bottom of the material cylinder 4, stirring the sealing agent inside the material cylinder 4. This helps to expel the sealed air inside the sealing agent, ensures the uniformity of the material, and improves the suction performance of the sealing agent pump.

[0035] A sensor mounting plate 17 is also fixedly installed on the cylinder body of the hydraulic cylinder 5. Two proximity switches 18 are fixedly installed on the sensor mounting plate 17, and the sensing end of the proximity switch 18 faces the sensing disk connected to the piston rod of the hydraulic cylinder 5.

[0036] The reciprocating motion of the hydraulic cylinder 5 is monitored by the proximity switch 18, and the pumping flow rate of the sealing agent is adjusted by controlling the number of reciprocating motions of the hydraulic cylinder 5.

[0037] Three solenoid valves 19 are also installed on the frame 1. Each solenoid valve 19 controls the operation of two sets of anchoring agent pumping mechanisms 2 and sealing pumps respectively.

[0038] Three solenoid valves 19 enable refined group control of the anchoring agent pumping mechanism 2 and the sealing pump, improving the automation level and working efficiency of the device. Independent control avoids interference between working units, ensuring the stability of pumping flow and the reliability of sealing operation, and improving the quality of anchoring agent construction. The solenoid valves 19 have a fast response speed and can execute control commands quickly and accurately, shortening the system response time and reducing energy consumption.

[0039] When using this utility model, the mixing pipe is connected to the anchor rod or anchor cable of the construction hole. The appropriate grouting pump is selected according to different construction scenarios. The mixing valve and mixing pipe adopt existing technology, which will not be described in detail here. The flow path of the A and B mixture is extended by the mixing pipe. The mixing core is set in the mixing pipe to ensure that the two-component materials are fully mixed, avoid local unreacted areas, and improve the consistency of the curing strength of the anchoring agent. After grouting is completed, a sealing agent is injected into the mixing valve and mixing pipe to replace the anchoring agent and the residual grout in the pumping pipeline.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gear pump metering device for conveying anchoring agent with a sealing and replacement function, characterized in that, Includes a frame (1), on which two sets of anchoring agent pumping mechanisms (2) are provided, and on the frame (1) located on one side of the anchoring agent pumping mechanism (2) is a sealing agent pumping mechanism (3). The outlet ends of the two sets of anchoring agent pumping mechanisms (2) and sealing agent pumping mechanisms (3) are connected to a mixing valve through hoses, and the outlet section of the mixing valve is connected to a mixing pipe; The frame (1) is also equipped with a control cabinet (7), which is used to control the operation of the two anchoring agent pumping mechanisms (2) and the sealing agent pumping mechanism (3).

2. The gear pump metering device for conveying anchoring agent with sealing and replacement function according to claim 1, characterized in that, The sealing agent pumping mechanism (3) includes a cylinder (4) fixedly mounted on the frame (1), a hydraulic cylinder (5) fixedly mounted at the lower end of the cylinder (4), and a plunger pump (6) fixedly mounted at the lower end of the cylinder (4). The inlet end of the plunger pump (6) is located inside the cylinder (4), and the outlet end of the plunger pump (6) is located outside the cylinder (4). The plunger of the plunger pump (6) is fixedly connected to the piston of the hydraulic cylinder (5).

3. The gear pump metering device for conveying anchoring agent with sealing and replacement function according to claim 1, characterized in that, The anchoring agent pumping mechanism (2) includes a housing (8) fixed on the frame (1), a hydraulic motor (9) is fixedly installed in the middle of the housing (8), and a drive gear (10) is coaxially fixed on the output shaft of the hydraulic motor (9), and the drive gear (10) is located inside the housing (8). Two driven gears (11) are rotatably disposed inside the housing (8). The two driven gears (11) are located on both sides of the driving gear (10) and mesh with the driving gear (10) respectively. A gear pump (12) is fixedly installed on the housing (8) on both sides of the hydraulic motor (9), and the drive shaft of the gear pump (12) is fixed coaxially with an adjacent driven gear (11).

4. The gear pump metering device for conveying anchoring agent with sealing and replacement function according to claim 2, characterized in that, A fork (13) is fixedly installed on the piston rod of the hydraulic cylinder (5), and a pull rod (14) is fixedly installed on the fork (13). One end of the pull rod (14) extends into the inside of the material cylinder (4). A stirring rod (15) is rotatably mounted on the lower part of the material cylinder (4), and a swing arm (16) is fixedly mounted on the rotation axis of the stirring rod (15). The movable end of the swing arm (16) is connected to the movable end of the pull rod (14).

5. The gear pump metering device for conveying anchoring agent with sealing and replacement function according to claim 2, characterized in that, A sensor mounting plate (17) is also fixedly installed on the cylinder body of the hydraulic cylinder (5). Two proximity switches (18) are fixedly installed on the sensor mounting plate (17). The sensing end of the proximity switch (18) faces the sensing disk connected to the piston rod of the hydraulic cylinder (5).

6. The gear pump metering device for conveying anchoring agent with sealing and replacement function according to claim 1, characterized in that, Three solenoid valves (19) are also provided on the frame (1), and each solenoid valve (19) controls the operation of two sets of anchoring agent pumping mechanisms (2) and sealing pumps respectively.

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