CN217976484U

CN217976484U - Electric mud pump

Info

Publication number: CN217976484U
Application number: CN202222262362.0U
Authority: CN
Inventors: 陈凤钢; 朱锦春; 王超文; 程熙
Original assignee: Jiangsu Gudeng Heavy Machinery Equipment Technology Co ltd
Current assignee: Jiangsu Gudeng Heavy Machinery Technology Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-12-06
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses an electric slurry pump, which relates to the technical field of slurry pumps and comprises a pump body, wherein the pump body comprises a pump cylinder, a piston arranged in the pump cylinder in a sliding way and a driving device for driving the piston to reciprocate in the pump cylinder; the power output end of the planetary reducer is in driving connection with the driving wheel and is used for driving the driving wheel to rotate; the driving motor is connected with the power input end of the planetary reducer; the electric slurry pump is internally provided with the speed reducing mechanism, so that the length of the adopted speed reducer is shortened by one third, and the whole structure of the electric slurry pump is more compact; meanwhile, compared with a two-stage speed reducer, the comprehensive cost is reduced by 5% -10%.

Description

Electric mud pump

Technical Field

The utility model relates to a slush pump technical field especially relates to an electric slush pump.

Background

The horizontal directional drilling machine is gradually one of main force devices for trenchless construction, and occupies more than 85% of the market; the method is widely applied to the fields of laying and constructing pipelines for underground water supply, pollution discharge, oil gas, communication, power supply and the like; the mud pump equipment is inevitably adopted by the mud pump in the process of directional crossing.

At present, an electrically-driven mud pump which is used in a matched mode generally adopts a planetary reducer with at least two-stage reduction, and is high in cost and large in size. Chinese patent No. CN201020170387.2 discloses a pump body, which comprises a pump body, a pump head, a frame and a motor, wherein the pump body is composed of a power end and a hydraulic end, the power end comprises a crankshaft, a connecting rod, a cross head and a piston, and the crankshaft is connected with a two-stage speed reduction and change transmission device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the shortcoming of the prior art is overcome, an electric mud pump is provided.

In order to solve the technical problem, the technical scheme of the utility model as follows:

an electrically driven mud pump comprising a pump body including a pump cylinder, a piston slidably disposed within the pump cylinder, and drive means for driving the piston to reciprocate within the pump cylinder, said drive means comprising,

the speed reducing mechanism comprises a driving wheel and a driven wheel meshed with the driving wheel, a crankshaft is coaxially and fixedly connected to the driven wheel, a transmission rod is rotatably connected to the crankshaft, and the transmission rod is connected with the piston;

the power output end of the planetary reducer is in driving connection with the driving wheel and is used for driving the driving wheel to rotate; and the number of the first and second groups,

and the driving motor is connected with the power input end of the planetary reducer.

As a preferable aspect of the electric slurry pump of the present invention, wherein: the diameter of the driven wheel is larger than that of the driving wheel.

As a preferable aspect of the electric slurry pump of the present invention, wherein: the pump body is internally provided with a guide sleeve in a sliding manner, the sliding direction of the guide sleeve is parallel to the movement direction of the piston, the guide sleeve is connected with the piston through a connecting rod, and one end, far away from the crankshaft, of the transmission rod is connected with the guide sleeve.

As a preferable aspect of the electric slurry pump of the present invention, wherein: the driving wheel and the driven wheel are rotatably arranged in the pump body.

As a preferable aspect of the electric slurry pump of the present invention, wherein: the outer side wall of the pump body is fixedly provided with a gear box, and the driving wheel and the driven wheel are rotatably arranged in the gear box.

As a preferable aspect of the electric slurry pump of the present invention, wherein: the driving motor is a permanent magnet synchronous motor or a three-phase asynchronous motor.

As a preferable aspect of the electric slurry pump of the present invention, wherein: the driving motor is connected with the PLC.

The beneficial effects of the utility model are that:

from taking reduction gears in the electric mud pump, the speed reducer that consequently adopts only needs the one-level speed reduction, makes the length of the speed reducer of adoption shorten the third, makes electric mud pump's overall structure more compact. Meanwhile, the planetary speed reducer adopts one-stage speed reduction, so that the comprehensive cost of the electric slurry pump is reduced by 5-10% compared with that of a two-stage speed reducer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a top plan view of the electric mud pump provided in example 1;

FIG. 2 is a schematic sectional view of a front view of the electric mud pump provided in embodiment 1;

FIG. 3 is a top plan view of the electric mud pump provided in example 2;

wherein: 1. a pump body; 2. a pump cylinder; 3. a piston; 4. a driving wheel; 5. a driven wheel; 6. a crankshaft; 7. a transmission rod; 8. a planetary reducer; 9. a drive motor; 10. a guide sleeve; 11. a connecting rod; 12. a gear case; 13. a water inlet valve; 14. and (4) a water outlet valve.

Detailed Description

In order that the present invention may be more clearly understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Example 1:

FIG. 1 is a top plan view of an embodiment of an electric mud pump. The mud pump comprises a pump body 1. Wherein, the pump body 1 comprises a pump cylinder 2, which is provided with a water inlet valve 13 and a water outlet valve 14. A piston 3 is slidably mounted in the pump cylinder 2. The piston 3 reciprocates in the pump cylinder 2 to periodically change the working volume of the pump cylinder 2, thereby realizing the suction and discharge of liquid. The piston 3 is driven by a driving device to realize reciprocating motion in the pump cylinder 2.

Specifically, the drive device includes a reduction mechanism, a planetary reduction gear 8, and a drive motor 9. Therein, referring to fig. 2, the speed reducing mechanism comprises a driving wheel 4 and a driven wheel 5 rotatably mounted in the pump body 1. The driven wheel 5 is meshed with the driving wheel 4. The diameter of the driven wheel 5 is much larger than that of the driving wheel 4. A crankshaft 6 is coaxially and fixedly connected to the driven wheel 5. A transmission rod 7 is sleeved on the crankshaft 6, and the other end of the transmission rod 7 is in transmission connection with the piston 3.

Preferably, a guide sleeve 10 is also slidingly arranged inside the pump body 1, see fig. 2. The outer side wall of the guide sleeve 10 is attached to the inner cavity wall of the pump body 1. The sliding direction of the guide sleeve 10 is parallel to the movement direction of the piston 3, and the axis of the guide sleeve 10 coincides with the axis of the piston 3. The guide sleeve 10 is connected with the piston 3 through a connecting rod 11. While the end of the transmission rod 7 remote from the crankshaft 6 is connected to a fixed guide sleeve 10. When the crankshaft 6 rotates, the driving rod 7 can drive the guide sleeve 10 to reciprocate, and the guide sleeve 10 can drive the piston 3 to reciprocate in the pump cylinder 2. The force exerted by the guide sleeve 10 on the piston 3 is always parallel to the direction of movement of the piston 3, making the movement of the piston 3 inside the cylinder 2 smoother.

The power output end of the planetary reducer 8 is in driving connection with the driving wheel 4. And the driving motor 9 is connected with the power input end of the planetary reducer 8. Wherein, the driving motor 9 can be a permanent magnet synchronous motor or a three-phase asynchronous motor.

When the electric mud pump works, the driving motor 9 is started firstly, the power of the driving motor is transmitted to the driving wheel 4 in the speed reducing mechanism through the planetary speed reducer 8, the driving wheel 4 is driven to rotate, and then the driven wheel 5 is driven to rotate. When the driven wheel 5 rotates, the crankshaft 6 is driven to rotate, the crankshaft 6 drives the transmission rod 7 to move, the guide sleeve 10 is driven to reciprocate in the pump body 1, and then the piston 3 is driven to reciprocate in the pump cylinder 2. When the piston 3 moves towards the outside of the pump cylinder 2, the water inlet valve 13 is opened, the water outlet valve 14 is closed, and mud can be sucked into the pump cylinder 2; when the piston 3 moves towards the pump cylinder 2, the outlet valve 14 is opened, the inlet valve 13 is closed, and the mud can be delivered in a high pressure mode.

It can be understood that the electric mud pump is internally provided with the speed reducing mechanism, so that the adopted speed reducer only needs one-stage speed reduction, the length of the adopted speed reducer is shortened by one third, and the whole structure of the electric mud pump is more compact. Meanwhile, the planetary reducer 8 adopts one-stage speed reduction, so that the comprehensive cost of the electric mud pump is reduced by 5-10% compared with a two-stage speed reducer.

In addition, the driving motor 9 can be electrically connected with a PLC controller, so that an operator can carry out remote control indoors.

Example 2:

fig. 3 is a schematic structural diagram of an electric mud pump according to this embodiment. Compared with the embodiment 1, the difference points are that: in this embodiment, a gear box 12 is fixedly disposed at the lower end of the outer side wall of the pump body 1, and the driving wheel 4 and the driven wheel 5 are rotatably mounted in the gear box 12. That is, the speed reduction mechanism may be provided inside the pump body 1 or outside the pump body 1.

The parts not mentioned in this embodiment are the same as the structure in embodiment 1, and are not described herein again.

In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent replacement or equivalent transformation fall within the protection scope required by the utility model.

Claims

1. An electric slurry pump, comprising a pump body (1), said pump body (1) comprising a pump cylinder (2), a piston (3) slidably disposed within the pump cylinder (2), and a drive means for driving the piston (3) to reciprocate within the pump cylinder (2), characterized in that: the drive device comprises a motor, a driving device and a control device,

the speed reducing mechanism comprises a driving wheel (4) and a driven wheel (5) meshed with the driving wheel (4), a crankshaft (6) is coaxially and fixedly connected to the driven wheel (5), a transmission rod (7) is rotatably connected to the crankshaft (6), and the transmission rod (7) is connected with the piston (3);

the power output end of the planetary speed reducer (8) is in driving connection with the driving wheel (4) and is used for driving the driving wheel (4) to rotate; and the number of the first and second groups,

and the driving motor (9) is connected with the power input end of the planetary reducer (8).

2. The electric mud pump as set forth in claim 1, wherein: the diameter of the driven wheel (5) is larger than that of the driving wheel (4).

3. The electric mud pump as set forth in claim 1, wherein: the pump body (1) is provided with a guide sleeve (10) in a sliding mode, the sliding direction of the guide sleeve (10) is parallel to the moving direction of the piston (3), the guide sleeve (10) is connected with the piston (3) through a connecting rod (11), and one end of the transmission rod (7) far away from the crankshaft (6) is connected with the guide sleeve (10).

4. The electric mud pump of claim 1, wherein: the driving wheel (4) and the driven wheel (5) are rotatably arranged in the pump body (1).

5. The electric mud pump as set forth in claim 1, wherein: the outer side wall of the pump body (1) is fixedly provided with a gear box (12), and the driving wheel (4) and the driven wheel (5) are rotatably arranged in the gear box (12).

6. The electric mud pump as set forth in claim 1, wherein: the driving motor (9) is a permanent magnet synchronous motor or a three-phase asynchronous motor.

7. The electric mud pump of claim 1, wherein: and the driving motor (9) is connected with the PLC.