LNG plunger pump special for gas station

Abstract

The utility model relates to the technical field of plunger pumps, in particular to an LNG plunger pump special for a gas station, which comprises a bottom plate, a moving part is mounted on one side of the top of the bottom plate, an anti-explosion driving motor is mounted in the moving part, the output end of the anti-explosion driving motor is connected with a pinion disc, the other side of the top of the bottom plate is connected with an LNG plunger pump body, and the LNG plunger pump body is connected with an LNG pump. The input end of the LNG plunger pump body is connected with a large gear disc. Through the use of the moving part, the explosion-proof driving motor cannot drive the LNG plunger pump body to run stably through the transmission toothed belt when the transmission toothed belt is abraded, the wrench is used for reversely pushing the screw rod to reversely rotate and move leftwards, the pushing plate moves leftwards, the pushing rod is driven to move leftwards, and at the moment, the sliding rail moves leftwards to drive the arc-shaped supporting frame to move leftwards; the anti-explosion driving motor drives the small gear disc to move leftwards to tension the transmission toothed belt, and at the moment, the anti-explosion driving motor drives the LNG plunger pump body to operate stably through the transmission toothed belt.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pumps, in particular to an LNG plunger pump dedicated for gas filling stations. Background Technique

[0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating movement of the plunger in the cylinder block to change the volume of the sealed working chamber to achieve oil suction and oil pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, and convenient flow regulation. The plunger pump is widely used in occasions where high pressure, large flow, and flow regulation are required, such as hydraulic presses, construction machinery, and ships.

[0003] There are various types of plunger pumps, including LNG plunger pumps. The LNG plunger pump is mainly used in gas filling stations. During the operation of the LNG plunger pump, the transmission components between the motor and the pump body will be worn. After a long time, the output end of the motor cannot drive the pump body to operate stably through the transmission components, resulting in insufficient pressure provided by the pump body and unable to effectively guide the gas. Therefore, in order to solve such problems, we propose an LNG plunger pump dedicated for gas filling stations. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose an LNG plunger pump dedicated for gas filling stations.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An LNG plunger pump dedicated for gas filling stations includes a bottom plate. On one side of the top of the bottom plate, a moving component is installed. Inside the moving component, an explosion-proof drive motor is installed. The output end of the explosion-proof drive motor is connected to a small gear disk. On the other side of the top of the bottom plate, an LNG plunger pump body is connected. The input end of the LNG plunger pump body is connected to a large gear disk. A transmission toothed belt is sleeved between the small gear disk and the large gear disk. One end of the bottom plate is connected to a protection frame.

[0007] Preferably, an installation groove is opened at one end of the protection frame, and a protective mesh plate is connected to the inner wall of the installation groove by bolts.

[0008] Preferably, the moving component includes a left positioning strip, a right positioning strip, and an arc-shaped support frame. The explosion-proof drive motor is installed inside the arc-shaped support frame. The bottom of the left positioning strip is connected to one side of the top of the bottom plate, and the bottom of the right positioning strip is connected to the middle of the top of the bottom plate.

[0009] Preferably, at both ends of the opposite sides of the left positioning strip and the right positioning strip, connection tracks are connected. The outer part of the connection tracks is slidably sleeved with slide rails, and one side of the two slide rails opposite to each other is connected to the arc-shaped support frame.

[0010] Preferably, a pushing block is connected to the top of the sliding rail, a pushing rod is connected to one side of the pushing block, and a pushing plate is commonly connected to the sides of the two pushing rods away from the pushing block.

[0011] Preferably, a support block is fixedly sleeved on the outside of the pushing rod, and the bottom of the support block is in sliding contact with the top of the connecting rail.

[0012] Preferably, a support sleeve is connected to one side of the pushing plate, a pushing screw rod is movably connected to the inner wall of the support sleeve through a bearing, and a bearing plate is threadedly sleeved on the outside of the pushing screw rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By using the moving components in the present utility model, when the transmission toothed belt is worn and the explosion-proof drive motor cannot drive the LNG plunger pump body to operate stably through the transmission toothed belt, use a wrench to reverse the pushing screw rod to make it reverse and move leftward. The pushing plate moves leftward, driving the pushing rod to push leftward. At this time, the sliding rail moves leftward, driving the arc-shaped support frame to move leftward. The explosion-proof drive motor drives the small gear disk to move leftward to tension the transmission toothed belt, and the explosion-proof drive motor then drives the LNG plunger pump body to operate stably through the transmission toothed belt. Description of the Drawings

[0015] Figure 1 is an axonometric view of the structure of the present utility model;

[0016] Figure 2 is an exploded view of the grinding component structure of the present utility model;

[0017] Figure 3 is an axonometric view of the second vertical plate structure of the present utility model;

[0018] Figure 4 is the Figure 3 top view of the present utility model.

[0019] In the figure: 1, bottom plate; 2, explosion-proof drive motor; 3, moving components; 31, left positioning strip; 32, connecting rail; 33, arc-shaped support frame; 34, pushing block; 35, sliding rail; 36, pushing rod; 37, support block; 38, pushing plate; 39, support sleeve; 310, bearing plate; 311, pushing screw rod; 312, right positioning strip; 4, LNG plunger pump body; 5, large gear disk; 6, transmission toothed belt; 7, protection frame; 8, small gear disk; 9, protective net plate; 10, installation groove. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Please refer to Figures 1 - 4 Figures 1 - 4 , an LNG plunger pump dedicated for gas filling stations, comprising a bottom plate 1. On one side of the top of the bottom plate 1, a moving component 3 is installed. Inside the moving component 3, an explosion-proof drive motor 2 is installed. The output end of the explosion-proof drive motor 2 is connected to a small gear disk 8. On the other side of the top of the bottom plate 1, an LNG plunger pump body 4 is connected. The input end of the LNG plunger pump body 4 is connected to a large gear disk 5. A transmission toothed belt 6 is sleeved between the small gear disk 8 and the large gear disk 5. One end of the bottom plate 1 is connected to a protection frame 7.

[0022] As a technical optimization solution of the present utility model, an installation groove 10 is opened at one end of the protection frame 7. The inner wall of the installation groove 10 is connected with a protection net plate 9 by bolts; through the installation groove 10, the protection net plate 9 can be hiddenly installed to avoid the protection net plate 9 protruding from the protection frame 7.

[0023] As a technical optimization solution of the present utility model, the moving component 3 includes a left positioning strip 31, a right positioning strip 312 and an arc-shaped support frame 33. The explosion-proof drive motor 2 is installed inside the arc-shaped support frame 33. The bottom of the left positioning strip 31 is connected to one side of the top of the bottom plate 1. The bottom of the right positioning strip 312 is connected to the middle of the top of the bottom plate 1; through the left positioning strip 31 and the right positioning strip 312, the moving space of the arc-shaped support frame 33 can be restricted.

[0024] As a technical optimization solution of the present utility model, connection rails 32 are connected to both ends of the opposite sides of the left positioning strip 31 and the right positioning strip 312. The outside of the connection rails 32 is slidably sleeved with slide rails 35. One side of the two slide rails 35 opposite to each other is connected to the arc-shaped support frame 33; through the connection rails 32, it is beneficial to the smooth movement of the slide rails 35.

[0025] As a technical optimization solution of the present utility model, a pushing block 34 is connected to the top of the slide rail 35. One side of the pushing block 34 is connected to a pushing rod 36. The common connection of the sides of the two pushing rods 36 away from the pushing block 34 is a pushing plate 38; through the pushing block 34, when the pushing rod 36 moves left and right, the slide rail 35 can be driven to move left and right.

[0026] As a technical optimization solution of the present utility model, a support block 37 is fixedly sleeved on the outside of the pushing rod 36. The bottom of the support block 37 is in sliding contact with the top of the connection rail 32; through the support block 37, support can be provided for the pushing rod 36 to avoid bending of the pushing rod 36 with a long span.

[0027] As a technical optimization solution of the present utility model, a support sleeve 39 is connected to one side of the pushing plate 38. The inner wall of the support sleeve 39 is movably connected to a pushing screw 311 through a bearing. The outside of the pushing screw 311 is threadedly sleeved with a bearing plate 310; the bottom of the bearing plate 310 is connected to the top of the bottom plate 1.

[0028] When the present utility model is in use, when the transmission toothed belt 6 is worn and the explosion-proof drive motor 2 cannot drive the LNG plunger pump body 4 to operate stably through the transmission toothed belt 6, use a wrench to reverse and push the screw rod 311 to make it reverse and move leftward, push the pushing plate 38 to move leftward, drive the pushing rod 36 to move leftward, at this time the slide rail 35 moves leftward to drive the arc-shaped support frame 33 to move leftward, and the explosion-proof drive motor 2 drives the small gear disk 8 to move leftward to tension the transmission toothed belt 6, and at this time the explosion-proof drive motor 2 drives the LNG plunger pump body 4 to operate stably through the transmission toothed belt 6. Further, when installing the transmission toothed belt 6, use a wrench to rotate the screw rod 311 forward, at this time the explosion-proof drive motor 2 drives the small gear disk 8 to move rightward to reduce the distance between the large gear disk 5, which is beneficial to the installation of the transmission toothed belt 6.

[0029] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A special LNG plunger pump for gas filling stations, comprising a bottom plate (1), characterized in that: On one side of the top of the bottom plate (1), a moving component (3) is installed. An explosion-proof drive motor (2) is installed inside the moving component (3). The output end of the explosion-proof drive motor (2) is connected to a small gear disk (8). On the other side of the top of the bottom plate (1), an LNG plunger pump body (4) is connected. The input end of the LNG plunger pump body (4) is connected to a large gear disk (5). A transmission toothed belt (6) is sleeved between the small gear disk (8) and the large gear disk (5). One end of the bottom plate (1) is connected to a protection frame (7).

2. The special LNG plunger pump for gas filling stations according to claim 1, characterized in that: One end of the protection frame (7) is provided with an installation groove (10), and a protection net plate (9) is connected to the inner wall of the installation groove (10) by bolts.

3. The special LNG plunger pump for gas filling station according to claim 1, characterized in that: The moving component (3) includes a left positioning strip (31), a right positioning strip (312) and an arc-shaped support frame (33). The explosion-proof drive motor (2) is installed inside the arc-shaped support frame (33). The bottom of the left positioning strip (31) is connected to one side of the top of the bottom plate (1), and the bottom of the right positioning strip (312) is connected to the middle of the top of the bottom plate (1).

4. The dedicated LNG plunger pump for gas filling stations according to claim 3, characterized in that: Both ends of the opposite sides of the left positioning strip (31) and the right positioning strip (312) are connected with connecting tracks (32). A slide rail (35) is slidably sleeved outside the connecting tracks (32). One side of the two slide rails (35) opposite to each other is connected to the arc-shaped support frame (33).

5. The special LNG plunger pump for gas filling stations according to claim 4, wherein: The top of the slide rail (35) is connected with a pushing block (34). One side of the pushing block (34) is connected with a pushing rod (36). The other sides of the two pushing rods (36) away from the pushing block (34) are commonly connected with a pushing plate (38).

6. The special LNG plunger pump for gas filling stations according to claim 5, characterized in that: A support block (37) is fixedly sleeved outside the pushing rod (36). The bottom of the support block (37) is in sliding contact with the top of the connecting track (32).

7. A dedicated LNG plunger pump for gas filling stations according to claim 5, characterized in that: One side of the pushing plate (38) is connected with a support sleeve (39). The inner wall of the support sleeve (39) is movably connected with a pushing screw rod (311) through a bearing. A bearing plate (310) is threadedly sleeved outside the pushing screw rod (311).

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