Explosion-proof pneumatic hydraulic pump for underground coal mine

Abstract

The explosion-proof pneumatic hydraulic pump for the underground coal mine comprises an anti-static base, an anti-static box body, a hydraulic adjusting pump, a first shaft rod and a movable wheel, the anti-static box body and the hydraulic adjusting pump are installed on the anti-static base, a damping film is pasted on the inner wall of the anti-static box body, and the first shaft rod and the movable wheel are arranged on the anti-static box body. A stable installation column is fixed to the bottom of the anti-static box body, a lifting installation column is installed at the bottom of the hydraulic adjusting pump, a discharging cavity is formed in the side, close to the feeding hopper, of the upper portion of the hydraulic adjusting pump, a movable wheel is installed at the position, close to the feeding hopper, in the hydraulic adjusting pump, and the movable wheel is a semi-open impeller. A streamline auxiliary impeller is arranged on the back face of the movable wheel, and the movable wheel is connected with the second shaft rod through a rotating wheel. According to the utility model, the mute transmission chamber is arranged outside the shaft linkage seat, so that liquid is prevented from entering the shaft linkage seat to cause that the hydraulic adjusting pump cannot work normally, and the working stability of the hydraulic pump is ensured.

Description

Technical Field

[0001] The utility model relates to the application field of hydraulic pumps, in particular to an explosion-proof pneumatic hydraulic pump used underground in coal mines. Background Art

[0002] Hydraulic grouting pumps are widely used in coal mines, mainly for grouting reinforcement, grouting water blocking, grouting fire prevention and grouting, and sealing holes during gas extraction. As a reciprocating pump, the single-cylinder double-acting hydraulic grouting pump can realize double-liquid grouting due to its small size. It is widely used in coal mines. The existing hydraulic pumps have a short distance for conveying sewage in coal mines. At the same time, the coal particles in the sewage cause serious wear on the inside of the hydraulic regulating pump. If the particles are blocked, it will cause great damage to the hydraulic pump. Therefore, we propose an explosion-proof pneumatic hydraulic pump for underground coal mines. Utility Model Content

[0003] The utility model aims to provide an explosion-proof pneumatic hydraulic pump for underground coal mines to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof pneumatic hydraulic pump for underground coal mines, comprising an anti-static seat, an anti-static box body, a hydraulic regulating pump, a first shaft rod and a movable wheel, the anti-static seat is equipped with an anti-static box body and a hydraulic regulating pump, the inner wall of the anti-static box body is pasted with a shock-absorbing film, a stable mounting column is fixed to the bottom of the anti-static box body, a lifting mounting column is installed at the bottom of the hydraulic regulating pump, a discharge cavity is provided on the upper side of the hydraulic regulating pump near the feeding funnel, a movable wheel is installed at a position near the feeding funnel inside the hydraulic regulating pump, the movable wheel is a semi-open impeller, and a streamlined auxiliary impeller is provided on the back of the movable wheel, and the movable wheel is connected to the second shaft rod through a rotating wheel.

[0005] Preferably, a transmission motor is installed inside the antistatic box body, and a power shaft on the transmission motor is connected to a shaft linkage seat inside the hydraulic regulating pump through a coupling.

[0006] Preferably, a feeding funnel is provided at one end of the hydraulic regulating pump, and a wear-resistant connecting plate is installed on the hydraulic regulating pump at the position of the feeding funnel.

[0007] Preferably, the second shaft is connected to the shaft linkage seat through the first shaft, and a silent transmission chamber is fixed outside the shaft linkage seat.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: the semi-open movable wheel arranged in the utility model can cut large solid particles into small particles during the rotation process, thereby increasing the efficiency of the hydraulic pump, while reducing the wear of the large solid particles on the inside of the hydraulic pump, thereby extending the service life of the hydraulic pump; by arranging a wear-resistant connecting plate on the feeding funnel, the wear of the hydraulic pump during use can be reduced; by installing a silent transmission chamber outside the shaft coupling seat, liquid is prevented from entering the shaft coupling seat, thereby causing the hydraulic regulating pump to fail to work normally, thereby ensuring the stability of the hydraulic pump operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the internal structure of the hydraulic regulating pump of the utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the movable wheel of the utility model;

[0012] Figure 4 It is a schematic diagram of the internal structure of the antistatic box body of the utility model.

[0013] In the figure: 1. Anti-static seat; 2. Stable installation column; 3. Anti-static box; 4. Transmission motor; 5. Power shaft; 6. Hydraulic adjustment pump; 7. Silent transmission chamber; 8. First shaft; 9. Second shaft; 10. Discharge chamber; 11. Movable wheel; 12. Feeding funnel; 13. Wear-resistant connecting plate; 14. Rotating wheel; 15. Lifting installation column; 16. Shaft linkage seat. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-4The utility model provides an embodiment: an explosion-proof pneumatic hydraulic pump for underground coal mines, comprising an anti-static seat 1, an anti-static box body 3, a hydraulic regulating pump 6, a first shaft rod 8 and a movable wheel 11, the anti-static seat 1 is equipped with an anti-static box body 3 and a hydraulic regulating pump 6, the inner wall of the anti-static box body 3 is pasted with a shock-absorbing film, a stable mounting column 2 is fixed to the bottom of the anti-static box body 3, a lifting mounting column 15 is installed at the bottom of the hydraulic regulating pump 6, a discharge cavity 10 is provided on one side above the hydraulic regulating pump 6 near the feeding funnel 12, a movable wheel 11 is installed at a position near the feeding funnel 12 inside the hydraulic regulating pump 6, the movable wheel 11 is a semi-open impeller, and a streamlined auxiliary impeller is provided on the back of the movable wheel 11, and the movable wheel 11 is connected to the second shaft rod 9 through a rotating wheel 14.

[0016] A transmission motor 4 is installed inside the antistatic box body 3, and a power shaft 5 on the transmission motor 4 is connected to a shaft linkage seat 16 inside a hydraulic regulating pump 6 through a coupling, a feeding funnel 12 is provided at one end of the hydraulic regulating pump 6, and a wear-resistant connecting plate 13 is installed on the hydraulic regulating pump 6 at the position of the feeding funnel 12, the second shaft rod 9 is connected to the shaft linkage seat 16 through the first shaft rod 8, and a silent transmission chamber 7 is fixed outside the first shaft rod 8

[0017] Specific usage: When working, put the hydraulic pump in a safe position, turn on the power, turn on the transmission motor 4, and the transmission motor 4 drives the shaft linkage seat 16 inside the hydraulic regulating pump 6 to rotate through the power shaft 5, and then transmits the rotational force to the second shaft 9 through the first shaft rod 8, thereby driving the movable wheel 11 to rotate. Through the synchronous rotation of the movable wheel 11 and the liquid, the liquid material at the feeding funnel 12 is transported to the discharge chamber 10, and finally discharged, thereby realizing the transportation of the liquid material from a low place to a high place. In the process of pumping the liquid, since the movable wheel 11 is a semi-open impeller and a streamlined auxiliary impeller is provided on the back of the movable wheel 11, larger solid particles in the liquid can be chopped up for easy pumping. At the same time, a silent transmission chamber 7 is installed outside the first shaft rod 8 to prevent liquid from entering the first shaft rod 8, thereby ensuring the normal operation of the hydraulic regulating pump.

[0018] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An explosion-proof pneumatic hydraulic pump for use in underground coal mines, comprising an antistatic seat (1), an antistatic box body (3), a hydraulic regulating pump (6), a first shaft (8) and a movable wheel (11), characterized in that: An antistatic box body (3) and a hydraulic regulating pump (6) are installed on the antistatic seat (1); a shock-absorbing film is pasted on the inner wall of the antistatic box body (3); a stable mounting column (2) is fixed at the bottom of the antistatic box body (3); a lifting mounting column (15) is installed at the bottom of the hydraulic regulating pump (6); a discharge cavity (10) is provided on the upper side of the hydraulic regulating pump (6) near the feeding hopper (12); a movable wheel (11) is installed inside the hydraulic regulating pump (6) near the feeding hopper (12); the movable wheel (11) is a semi-open impeller, and a streamlined auxiliary impeller is provided on the back of the movable wheel (11); the movable wheel (11) is connected to the second shaft (9) through a rotating wheel (14).

2. The explosion-proof pneumatic hydraulic pump for underground coal mines according to claim 1, characterized in that: A transmission motor (4) is installed inside the antistatic box body (3), and a power shaft (5) on the transmission motor (4) is connected to a shaft linkage seat (16) inside a hydraulic regulating pump (6) through a coupling.

3. The explosion-proof pneumatic hydraulic pump for underground coal mine according to claim 1, characterized in that: A feeding funnel (12) is provided at one end of the hydraulic regulating pump (6), and a wear-resistant connecting plate (13) is installed on the hydraulic regulating pump (6) at the position of the feeding funnel (12).

4. The explosion-proof pneumatic hydraulic pump for underground coal mine according to claim 1, characterized in that: The second shaft (9) is connected to the shaft linkage seat (16) via the first shaft (8), and a silent transmission chamber (7) is fixed outside the shaft linkage seat (16).

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