CN217873320U

CN217873320U - High-lift multistage centrifugal pump for coal mine

Info

Publication number: CN217873320U
Application number: CN202222357020.7U
Authority: CN
Inventors: 王新义; 云明伟; 谷海东
Original assignee: Henan Yutong Pump Valve Technology Co ltd
Current assignee: Henan Yutong Pump Valve Technology Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2022-11-22
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses a high-lift multistage centrifugal pump for coal mine, including removing the seat, remove the bottom four corners of seat and install and remove the wheel, the top of removing the seat is connected with a plurality of rubber posts, the common butt in top of a plurality of rubber posts has a supporting bench, the top of supporting bench is connected with the pump case, the pump case top is equipped with the motor, be connected with the protecting crust between pump case and the motor, the pump case internal rotation is connected with the pump shaft, the pump shaft outer wall is connected with a plurality of impellers, be equipped with the shaft coupling in the protecting crust, motor output shaft and pump shaft are connected respectively to the upper and lower both ends of shaft coupling, the preceding terminal surface lower part intercommunication of pump case has the inlet tube, the outer wall upper portion intercommunication of pump case has the outlet pipe; the utility model has the advantages of reasonable design, can avoid trapezoidal fixture block to receive a supporting bench influence to take place to rock, the toper inserted bar stretches into the work area underground to realize removing the location of seat, stability is good, can realize the liquid transport of colliery water, and is convenient high-efficient.

Description

High-lift multistage centrifugal pump for coal mine

Technical Field

The utility model relates to a colliery drainage correlation equipment technical field especially relates to a high-lift multistage centrifugal pump for coal mine.

Background

The coal mine drainage system is one of essential production systems in the underground of a mine, and the centrifugal pump is a commonly used coal mine water pump and is used for timely, safely, economically and reasonably discharging mine water gushed out of the underground to the ground so as to ensure the life safety of underground equipment and operating personnel of the mine and normal production activities of the mine.

The centrifugal pump adopts fastening bolt fixed bottom centrifugal pump in the installation mostly, but the centrifugal pump can vibration in the course of the work inevitable, and then can let fastening bolt produce not hard up, influences the normal use of device. Therefore, a high-lift multistage centrifugal pump for a coal mine is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-lift multistage centrifugal pump for coal mine to overcome the technical problem who exists among the prior art.

In order to realize the technical purpose, the technical effect is achieved, the utility model provides a following technical scheme:

the utility model provides a high-lift multistage centrifugal pump for coal mine, is including removing the seat, the bottom four corners of removing the seat is installed and is removed the wheel, the top of removing the seat is connected with a plurality of rubber columns, and is a plurality of the common butt in top of rubber column has a supporting bench, the top of supporting bench is connected with the pump case, the pump case top is equipped with the motor, be connected with the protecting crust between pump case and the motor, the pump case internal rotation is connected with the pump shaft, the pump shaft outer wall is connected with a plurality of impellers, be equipped with the shaft coupling in the protecting crust, motor output shaft and pump shaft are connected respectively to the upper and lower both ends of shaft coupling, the preceding terminal surface lower part intercommunication of pump case has the inlet tube, the outer wall upper portion intercommunication of pump case has the outlet pipe.

Preferably, in the multistage centrifugal pump of high-lift for the coal mine, the return groove has been seted up to the bottom of removing the seat, the roof four corners in return groove is rotated through the bearing and is connected with the vertical axis, the top of vertical axis is connected with first hand wheel, the outer wall connection of vertical axis has the band pulley, four the cover is equipped with the drive belt between the outer wall of band pulley, the bottom of vertical axis is connected with the threaded rod, the outer wall spiro union of threaded rod has threaded sleeve, threaded sleeve's bottom is connected with the toper inserted bar, threaded sleeve's outer wall upper portion is connected with the slider, return inslot wall is seted up with slider matched with spacing spout.

Preferably, in the multistage centrifugal pump of high-lift for coal mine, be equipped with the holding chamber in the removal seat, the inner chamber lower part rotation in holding chamber is connected with double-end screw, double-end screw's outer wall bilateral symmetry spiro union has nut seat, the upper end of nut seat is connected with U type pole, the guide way that supplies U type pole to remove is seted up to the upper end in holding chamber, the one end that U type pole stretched out the guide way is connected with trapezoidal fixture block, the draw-in groove with trapezoidal fixture block matched with is seted up to the outer wall of brace table, double-end screw's outer wall middle part is connected with the worm wheel, the outer wall meshing of worm wheel is connected with the worm, the worm rotates through the bearing and connects the removal seat, the front end that the worm stretched out the removal seat is connected with the second hand wheel.

Preferably, in the high-lift multistage centrifugal pump for coal mines, the end of the water inlet pipe is connected with a water pumping pipe through a flange, the front end of the water pumping pipe is communicated with a filter cylinder, a plurality of water inlets are uniformly distributed on the outer wall of the filter cylinder, and a filter screen is connected in each water inlet.

Preferably, in the high-lift multistage centrifugal pump for coal mines, the pump casing is formed by combining an outer casing and an inner casing, and soundproof cotton is filled between the outer casing and the inner casing.

Preferably, in the high-lift multistage centrifugal pump for coal mines, the height of the worm is lower than that of the transmission belt.

The beneficial effects of the utility model are that:

1. the utility model has the advantages of reasonable design, two nut seats move close to after the double-thread screw rotates, and the trapezoidal fixture block can stretch into the clamping groove of the supporting table, thereby realizing the positioning and clamping of the supporting table, and utilizing the self-locking effect of the worm gear and the worm, the trapezoidal fixture block can be prevented from shaking under the influence of the supporting table;

2. the device utilizes a transmission belt to be matched with a belt wheel for transmission, four vertical shafts can synchronously rotate, a threaded rod rotates along with the vertical shafts, a limiting sliding groove is utilized to be matched with a sliding block for guiding and limiting, and a conical insertion rod extends into the underground of a working area, so that the positioning of a movable seat is realized, and the stability is good;

2. the device utilizes the filter cartridge to filter mine water, the pump shaft drives the impeller to rotate at a high speed, the center of the impeller forms a certain vacuum due to the fact that liquid is thrown out, the pressure intensity at the liquid level is higher than that at the center of the impeller, and the liquid is continuously sucked and extruded when the impeller rotates ceaselessly, so that liquid conveying of the mine water can be achieved, and the device is convenient and efficient.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some examples of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an internal structure view of the base of the present invention;

FIG. 3 is a bottom view of the base of the present invention;

fig. 4 is a schematic structural view of a filter cartridge according to the present invention;

in the figure: 1. a movable seat; 2. a moving wheel; 3. a rubber column; 4. a support table; 5. a pump housing; 6. an electric motor; 7. a protective shell; 8. a pump shaft; 9. an impeller; 10. a coupling; 11. a water inlet pipe; 12. a water outlet pipe; 13. a circular groove; 14. an accommodating cavity; 51. sound insulation cotton; 111. a water pumping pipe; 112. a filter cartridge; 113. filtering with a screen; 131. a chute; 132. a vertical axis; 133. a first hand wheel; 134. a pulley; 135. a transmission belt; 136. a threaded rod; 137. a threaded bushing; 138. a tapered bayonet; 139. a slider; 141. a double-ended screw; 142. a nut seat; 143. a U-shaped rod; 144. a guide groove; 145. a trapezoidal fixture block; 146. a worm gear; 147. a worm; 148. a second hand wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1-4, the embodiment is a high-lift multistage centrifugal pump for coal mine, which includes a movable base 1, movable wheels 2 are installed at four corners of the bottom of the movable base 1, the top of the movable base 1 is connected with a plurality of rubber columns 3, a supporting table 4 is abutted to the tops of the rubber columns 3, the top of the supporting table 4 is connected with a pump case 5, a motor 6 is arranged above the pump case 5, a protecting shell 7 is connected between the pump case 5 and the motor 6, a pump shaft 8 is rotatably connected in the pump case 5, the outer wall of the pump shaft 8 is connected with a plurality of impellers 9, a coupling 10 is arranged in the protecting shell 7, the upper end and the lower end of the coupling 10 are respectively connected with an output shaft of the motor 6 and the pump shaft 8, the lower part of the front end face of the pump case 5 is communicated with a water inlet pipe 11, and the upper part of the outer wall of the pump case 5 is communicated with a water outlet pipe 12.

Move the bottom of seat 1 and seted up back shape groove 13, the roof four corners that returns shape groove 13 is connected with vertical axis 132 through bearing rotation, vertical axis 132's top is connected with first hand wheel 133, vertical axis 132's outer wall connection has band pulley 134, the cover is equipped with drive belt 135 between four band pulley 134's the outer wall, vertical axis 132's bottom is connected with threaded rod 136, threaded rod 136's outer wall spiro union has threaded sleeve 137, threaded sleeve 137's bottom is connected with toper inserted bar 138, threaded sleeve 137's outer wall upper portion is connected with slider 139, return shape inslot 13 inner wall and seted up with slider 139 matched with spacing spout 131, be convenient for move the spacing fixed of seat 1.

The movable base 1 is internally provided with an accommodating cavity 14, the lower part of the inner cavity of the accommodating cavity 14 is rotatably connected with a double-threaded screw rod 141, the outer wall of the double-threaded screw rod 141 is bilaterally and symmetrically screwed with a nut base 142, the upper end of the nut base 142 is connected with a U-shaped rod 143, the upper end of the accommodating cavity 14 is provided with a guide groove 144 for the U-shaped rod 143 to move, one end of the U-shaped rod 143 extending out of the guide groove 144 is connected with a trapezoidal fixture block 145, the outer wall of the support base 4 is provided with a clamping groove matched with the trapezoidal fixture block 145, the middle part of the outer wall of the double-threaded screw rod 141 is connected with a worm wheel 146, the outer wall of the worm wheel 146 is meshed with a worm 147, the worm 147 is rotatably connected with the movable base 1 through a bearing, and the front end of the worm 147 extending out of the movable base 1 is connected with a second hand wheel 148, so as to facilitate the assembly and disassembly of the support base 4.

The end of the water inlet pipe 11 is connected with a water pumping pipe 111 through a flange, the front end of the water pumping pipe 111 is communicated with a filter cartridge 112, a plurality of water inlets are uniformly distributed on the outer wall of the filter cartridge 112, and a filter screen 113 is connected in each water inlet to filter the pumped water.

The pump case 5 is formed by combining an outer case and an inner case, and soundproof cotton 51 is filled between the outer case and the inner case to reduce working noise.

The worm 147 is positioned at a lower height than the belt 135 to avoid interference with the lifting of the threaded sleeve 137.

The utility model discloses a concrete implementation way does:

when the device is used, the support table 4 is placed at the top of the rubber column 3, the worm 147 is driven to rotate through the second hand wheel 148, the worm 147 is meshed with the transmission worm wheel 146, the two nut seats 142 move close to each other after the double-threaded screw 141 rotates, the guide groove 144 is matched with the U-shaped rod 143 for limiting and guiding, and the trapezoidal fixture block 145 can extend into the clamping groove of the support table 4, so that the positioning and clamping of the support table 4 are realized, and the trapezoidal fixture block 145 can be prevented from shaking under the influence of the support table 4 by utilizing the self-locking effect of the worm 147 of the worm wheel 146;

the movable seat 1 is moved to a working area by using the movable wheel 2, the vertical shaft 132 is driven to rotate by the first hand wheel 133, the transmission belt 135 is used for matching with the belt wheel 134 for transmission, the four vertical shafts 132 can synchronously rotate, the threaded rod 136 rotates along with the vertical shaft 132, the guide limiting is carried out by the matching of the limiting chute 131 with the sliding block 139, the threaded sleeve 137 drives the conical insertion rod 138 to descend, and the conical insertion rod 138 extends into the underground of the working area, so that the movable seat 1 is positioned;

after the filter cartridge 112 is introduced into the liquid extraction area, the motor 6 is started, the pump shaft 8 drives the impeller 9 to rotate at a high speed, the impeller 9 drives the liquid among the blades to rotate together, the liquid is thrown from the center of the impeller 9 to the outer edge of the impeller 9 under the action of centrifugal force, the kinetic energy is increased, when the liquid enters the pump shell 5, the flow channel of the pump shell 5 in a volute shape is gradually enlarged, the flow speed of the liquid is gradually reduced, a part of the kinetic energy is converted into static pressure energy, then the liquid flows out along the water outlet pipe 12 at a higher pressure, a certain vacuum is formed at the center of the impeller 9 due to the throwing out of the liquid, the pressure at the liquid level is higher than that at the center of the impeller 9, therefore, the liquid in the water inlet pipe 11 enters the pump under the action of the pressure difference, the impeller 9 continuously rotates, the liquid is also continuously sucked and pressed out, and the liquid conveying of coal mine water is realized, and the liquid conveying is convenient and efficient.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended to aid in the description of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a multistage centrifugal pump of high lift for coal mine, is including removing seat (1), its characterized in that: the movable rubber pump is characterized in that movable wheels (2) are installed at four corners of the bottom of a movable seat (1), the top of the movable seat (1) is connected with a plurality of rubber columns (3) and a plurality of supporting tables (4) which are abutted to the top of the rubber columns (3) jointly, the top of each supporting table (4) is connected with a pump shell (5), a motor (6) is arranged above each pump shell (5), a protective shell (7) is connected between each pump shell (5) and the corresponding motor (6), a pump shaft (8) is connected to the pump shells (5) in a rotating mode, a plurality of impellers (9) are connected to the outer walls of the pump shafts (8), a coupler (10) is arranged in each protective shell (7), the output shaft and the pump shaft (8) of each motor (6) are connected to the upper end and the lower end of each coupler (10), a water inlet pipe (11) is communicated with the lower portion of the front end face of each pump shell (5), and a water outlet pipe (12) is communicated with the upper portion of the outer wall of each pump shell (5).

2. The high-lift multistage centrifugal pump for coal mines as set forth in claim 1, wherein: move the bottom in seat (1) and seted up return groove (13), the roof four corners in return groove (13) is rotated through the bearing and is connected with vertical axis (132), the top of vertical axis (132) is connected with first hand wheel (133), the outer wall connection of vertical axis (132) has band pulley (134), four the cover is equipped with drive belt (135) between the outer wall of band pulley (134), the bottom of vertical axis (132) is connected with threaded rod (136), the outer wall spiro union of threaded rod (136) has threaded sleeve (137), the bottom of threaded sleeve (137) is connected with toper inserted bar (138), the outer wall upper portion of threaded sleeve (137) is connected with slider (139), return groove (13) inner wall seted up with slider (139) matched with spacing spout (131).

3. The high-lift multistage centrifugal pump for coal mines as set forth in claim 2, wherein: the movable support is characterized in that an accommodating cavity (14) is arranged in the movable support (1), the lower portion of an inner cavity of the accommodating cavity (14) is rotatably connected with a double-threaded screw (141), nut seats (142) are symmetrically screwed on the left and right of the outer wall of the double-threaded screw (141), the upper end of each nut seat (142) is connected with a U-shaped rod (143), a guide groove (144) for the U-shaped rod (143) to move is formed in the upper end of the accommodating cavity (14), one end, extending out of the guide groove (144), of each U-shaped rod (143) is connected with a trapezoidal clamping block (145), a clamping groove matched with the trapezoidal clamping block (145) is formed in the outer wall of the support table (4), a worm wheel (146) is connected to the middle of the outer wall of the double-threaded screw (141), the outer wall of the worm wheel (146) is meshed with a worm (147), the worm (147) is rotatably connected with the movable support (1) through a bearing, and the front end, extending out of the movable support (1), is connected with a second hand wheel (148).

4. The high-lift multistage centrifugal pump for coal mines as set forth in claim 1, wherein: the tip of inlet tube (11) has drinking-water pipe (111) through flange joint, the front end intercommunication of drinking-water pipe (111) has a section of thick bamboo (112), it has a plurality of water inlets to strain section of thick bamboo (112) outer wall equipartition, water inlet in-connection has filter screen (113).

5. The high-lift multistage centrifugal pump for coal mines as set forth in claim 1, wherein: the pump shell (5) is formed by combining an outer shell and an inner shell, and sound insulation cotton (51) is filled between the outer shell and the inner shell.

6. The high-lift multistage centrifugal pump for coal mines as set forth in claim 3, wherein: the worm (147) is arranged at a lower level than the drive belt (135).