Single plunger pump and emulsion explosive mixing device

Abstract

The utility model discloses a single plunger pump and emulsion explosive mixed device, its technical scheme main points are including pump body, be provided with feed port and discharge port on the pump body, the piston is set in the pump body and can slide in the length direction of pump body in the pump body, the pumping rod is fixedly connected on the piston and is from the one end of pump body and stretches out the pump body, the length direction of pumping rod is set along the length direction of pump body, the frame is fixedly connected in the pump body and is provided with the one end of pumping rod, and the oil cylinder, the one end of pumping rod and stretches out the accommodating space for accommodating the cylinder body of oil cylinder cylinder and is provided in the pump body, the cylinder of oil cylinder sets up in the accommodating space and is together with pumping rod fixed connection, the piston rod of oil cylinder and frame are together fixed connection, set up the cylinder of oil cylinder in the accommodating space of pumping rod, can shorten the overall length of plunger pump, satisfy the use requirement of narrow space.

Description

Technical Field

[0001] This utility model relates to the technical field of emulsion explosive mixing, and more specifically, it relates to a single plunger pump and an emulsion explosive mixing device. Background Technology

[0002] In the on-site mixing process of emulsion explosives, the ratio of sensitizer and latex matrix must be accurate in order to produce qualified emulsion explosives.

[0003] In existing mixing processes, explosives are mostly pumped using plunger pumps. Most existing plunger pumps have the hydraulic cylinder, which serves as the power source, installed separately outside the pump body. This results in a large overall length of the plunger pump, which is not fully suitable for narrow construction sites. Therefore, there is an urgent need for a plunger pump with a smaller length to meet the requirements of narrow construction sites. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a single-plunger pump and an emulsion explosive mixing device, which sets the cylinder body of the oil cylinder within the receiving space of the pumping rod, thereby shortening the overall length of the plunger pump and meeting the requirements for use in confined spaces.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a single plunger pump, comprising a pump body, wherein the pump body is provided with an inlet and an outlet;

[0006] A piston, which is disposed within the pump body and is capable of sliding within the pump body along the length of the pump body;

[0007] A pumping rod is fixedly connected to the piston and extends out of the pump body from one end of the pump body, and the length direction of the pumping rod is set along the length direction of the pump body;

[0008] A frame, which is fixedly connected to one end of the pump body where the pumping rod is located;

[0009] The pump rod extends out of the pump body and has a receiving space for accommodating the cylinder body. The cylinder body is located in the receiving space and is fixedly connected to the pump rod. The piston rod of the cylinder is fixedly connected to the frame.

[0010] The present invention is further configured such that: the pumping chamber inside the pump body is configured as a cylindrical cavity with its axis arranged along the length direction of the pump body;

[0011] The feed inlet is located on the side of the pump body away from the frame, and the discharge outlet is located on the side of the pump body closer to the frame.

[0012] The present invention is further configured such that: the pumping chamber on the side of the piston near the feed inlet is configured as the first chamber, and the pumping chamber between the pumping rod and the pump body is configured as the second chamber.

[0013] The present invention is further configured such that: one end of the pumping rod connected to the piston is provided with a clearance hole along the length direction of the pumping rod, and the clearance hole extends through the piston along the length direction of the pumping rod;

[0014] The pumping rod has a connecting hole on its side near the piston end, which penetrates the piston sidewall to connect the second cavity with the clearance hole.

[0015] The present invention is further configured such that: the outer side of the end of the pumping rod extending out of the pump body is fixedly connected to a calibration block;

[0016] Two proximity sensors are fixedly connected to the frame and arranged along the length of the pump body. The two proximity sensors are used to detect the position of the calibration block.

[0017] Another object of the present invention is to provide a mixed explosive comprising a single plunger pump.

[0018] In summary, the present invention has the following advantages over the prior art: by setting the cylinder body of the hydraulic cylinder within the receiving space of the pumping rod, the overall length of the plunger pump can be shortened, meeting the requirements for use in confined spaces. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0020] Figure 2 for Figure 1 Enlarged schematic diagram of part A;

[0021] Figure 3 This is a cross-sectional view of the overall structure of the embodiment;

[0022] Figure 4 for Figure 3 Enlarged schematic diagram of part B.

[0023] In the diagram: 1. Pump body; 11. Inlet; 12. Outlet; 13. First chamber; 14. Second chamber; 2. Piston; 3. Pumping rod; 31. Accommodation space; 32. Clearance hole; 33. Connecting hole; 4. Hydraulic cylinder; 5. Frame; 51. Proximity sensor; 6. Calibration block. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0025] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0026] Example 1: A single-plunger pump, see appendix. Figure 1 - Appendix Figure 4 The system includes a pump body 1, a piston 2, a pumping rod 3, a frame 5, and a hydraulic cylinder 4. The pump body 1 is provided with an inlet 11 and an outlet 12. The piston 2 is disposed in the pump body 1 and can slide along the length of the pump body 1. The pumping rod 3 is fixedly connected to the piston 2 and extends out of the pump body 1 from one end. The length of the pumping rod 3 is arranged along the length of the pump body 1. The frame 5 is fixedly connected to the pump body 1 at the end where the pumping rod 3 is disposed. A receiving space 31 for accommodating the cylinder body of the hydraulic cylinder 4 is provided in the end of the pumping rod 3 extending out of the pump body 1. The cylinder body of the hydraulic cylinder 4 is disposed in the receiving space 31 and fixedly connected to the pumping rod 3. The piston rod of the hydraulic cylinder 4 is fixedly connected to the frame 5.

[0027] By placing the cylinder body of the hydraulic cylinder 4 within the receiving space 31 of the pumping rod 3, the overall length of the plunger pump can be shortened, meeting the requirements for use in confined spaces.

[0028] Specifically, the pumping chamber inside the pump body 1 is configured as a cylindrical cavity with its axis arranged along the length of the pump body 1; the feed inlet 11 is located on the side of the pump body 1 away from the frame 5, and the discharge outlet 12 is located on the side of the pump body 1 close to the frame 5.

[0029] Specifically, the pumping chamber on the side of piston 2 near the feed inlet 11 is configured as the first chamber 13, and the pumping chamber between the pumping rod 3 and the pump body 1 is configured as the second chamber 14.

[0030] Specifically, the pumping rod 3 is provided with a clearance hole 32 at one end connected to the piston 2, which is provided along the length of the pumping rod 3. The clearance hole 32 passes through the piston 2 along the length of the pumping rod 3. A connecting hole 33 is provided on the side of the pumping rod 3 near the piston 2, which passes through the side wall of the piston 2 to connect the second cavity 14 with the clearance hole 32.

[0031] When piston 2 moves toward the discharge port 12, piston 2 pushes the explosive in the second chamber 14 into the discharge port 12 and out through the discharge port 12. It can also create a negative pressure in the first chamber 13 to drive the external explosive into the first chamber 13 through the feed port 11. When piston 2 moves toward the feed port 11, it will push some of the explosive out through the feed port 11 and also cause some of the explosive to enter the second chamber 14 through the clearance hole 32 and the connecting hole 33 under pressure.

[0032] Specifically, the outer side of the pumping rod 3 extending from the pump body 1 is fixedly connected to a calibration block 6; two proximity sensors 51 arranged along the length of the pump body 1 are fixedly connected to the frame 5, and the two proximity sensors 51 are used to detect the position of the calibration block 6. By setting the two proximity sensors 51, the vertical movement of the piston 2 can be limited by detecting the position of the calibration block 6.

[0033] Example 2: An emulsion explosive mixing device, including the single plunger pump in Example 1.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A single-plunger pump, characterized in that: It includes a pump body (1), which is provided with an inlet (11) and an outlet (12); Piston (2), which is disposed in the pump body (1) and is capable of sliding in the pump body (1) along the length of the pump body (1); Pumping rod (3), the pumping rod (3) is fixedly connected to piston (2) and extends out of pump body (1) from one end of pump body (1), the length direction of the pumping rod (3) is set along the length direction of pump body (1); The frame (5) is fixedly connected to one end of the pump body (1) where the pumping rod (3) is located; And the oil cylinder (4), the pumping rod (3) extends out of the pump body (1) and is provided with a receiving space (31) for accommodating the cylinder body of the oil cylinder (4), the cylinder body of the oil cylinder (4) is set in the receiving space (31) and is fixedly connected to the pumping rod (3), and the piston (2) rod of the oil cylinder (4) is fixedly connected to the frame (5).

2. A single-plunger pump according to claim 1, characterized in that: The pumping chamber inside the pump body (1) is configured as a cylindrical cavity with its axis along the length of the pump body (1); The feed inlet (11) is located on the side of the pump body (1) away from the frame (5), and the discharge outlet (12) is located on the side of the pump body (1) close to the frame (5).

3. A single-plunger pump according to claim 2, characterized in that: The pumping chamber on the side of the piston (2) near the feed inlet (11) is configured as the first chamber (13), and the pumping chamber between the pumping rod (3) and the pump body (1) is configured as the second chamber (14).

4. A single-plunger pump according to claim 3, characterized in that: The pumping rod (3) is provided with a relief hole (32) at one end connected to the piston (2) along the length direction of the pumping rod (3), and the relief hole (32) passes through the piston (2) along the length direction of the pumping rod (3); The pumping rod (3) has a connecting hole (33) on the side near the piston (2) that penetrates the side wall of the piston (2) to connect the second cavity (14) with the relief hole (32).

5. A single-plunger pump according to claim 4, characterized in that: The pumping rod (3) is fixedly connected to the calibration block (6) on the outside of one end of the pump body (1); Two proximity sensors (51) are fixedly connected to the frame (5) along the length of the pump body (1). The two proximity sensors (51) are used to detect the position of the calibration block (6).

6. A mixing device for emulsion explosives, characterized in that: Includes the single-plunger pump as described in any one of claims 1-5.

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