Water pump dismounting and maintaining device for underground coal mine water pump room

Abstract

The utility model discloses an underground coal mine water pump room water pump dismounting and maintaining device which comprises an impeller dismounting and pulling mechanism. The impeller detaching and pulling mechanism comprises a support, detaching and pulling arms are hinged to the two sides of the support respectively, and pulling plate structures hung on the pump body impeller in a pulling mode are installed on the detaching and pulling arms. The device further comprises a pushing structure which is fixedly installed on the moving trolley, and the support is fixedly installed on the moving trolley. In the dismounting process, the power output end of the pushing structure is supported on the pump body main shaft, and the pump body impeller is pulled and dismounted by the dismounting and pulling arm; a control rod structure for controlling the opening and closing angles of the detaching and pulling arms is installed between the detaching and pulling arms, in the detaching and pulling process, the opening amplitude of the detaching and pulling arms is adjusted till the pulling plate structure is pulled and hung on the pump body impeller, and the control rod structure locks the detaching and pulling arms. According to the structure, the impeller of the pump body is withdrawn and pulled down in a withdrawing and pulling mode of the detaching and pulling arm, and the defects of impeller deformation, labor waste and the like caused by withdrawing and pulling the impeller in a traditional knocking mode are overcome.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water pump dismounting and repairing technical field, especially relate to a coal mine underground water pump house water pump dismounting and repairing device. BACKGROUND

[0002] In the process of coal mining operation, in order to pump out the water under the mine, a large number of large water pumps need to be laid out, and the large water pumps are not only large in size and heavy in weight, but also are mostly multi-stage pumps. When the water pump fails, the water pump needs to be dismounted. For large multi-stage water pumps, it is difficult to dismount. For example, the impeller on the water pump is dismounted from the main shaft of the pump body.

[0003] The specific reason is that after the water pump works for a long time, the impeller is prone to rust on the main shaft. After the nut locking the impeller on the main shaft is dismounted, it is very difficult to dismount the heavy impeller from the main shaft. The reason is that the weight of the impeller is large.

[0004] Therefore, in the actual dismounting and repairing process, the operator selects to use a hammer to knock the impeller to loosen the impeller from the main shaft. After the impeller is loosened after being knocked for many times and in many directions, it can be dismounted. However, the disadvantage is obvious. The reason is that during the high-speed rotation of the impeller, once the shape is deformed under the action of the knocking force, the impeller is prone to deformation due to uneven stress during the knocking process. After the deformation, the geometric center of the impeller is deviated. At this time, the centrifugal force of the high-speed rotating impeller causes great damage to the main shaft.

[0005] In actual work process, after the impeller is deformed by knocking, the pump body is started after installation, and the pump body produces abnormal noise after investigation. The abnormal noise is caused by the deformation of the impeller during dismounting.

[0006] And the above-mentioned dismounting operation is extremely laborious, especially the severely corroded impeller is basically difficult to separate from the main shaft.

[0007] Therefore, in the face of the technical problems encountered in the dismounting and repairing, the knocking method is still used to dismount. UTILITY MODEL CONTENTS

[0008] Based on the above background, the purpose of the utility model is to provide a coal mine underground water pump house water pump dismounting and repairing device.

[0009] To achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A coal mine underground water pump house water pump dismounting and repairing device, comprising an impeller dismounting and pulling mechanism;

[0011] The impeller dismounting and pulling mechanism comprises a support, and dismounting and pulling arms are hinged on the two sides of the support, and a pulling plate structure is installed on the dismounting and pulling arm and hung on the impeller of the pump body;

[0012] The pushing structure is fixedly installed on the moving trolley, and the support is fixedly installed on the moving trolley;

[0013] During the dismounting process, the power output end of the pushing structure is supported on the pump body main shaft, and the dismounting arm pulls and dismounts the pump body impeller;

[0014] The control lever structure for controlling the opening angle of the dismounting arm is installed between the dismounting arms, and during the dismounting process, the opening range of the dismounting arm is adjusted to pull the plate structure to be hung on the pump body impeller, and the control lever structure locks the dismounting arm.

[0015] Preferably, the dismounting arm comprises a long oblique arm portion, and an end straight portion is integrally formed at the end of the long oblique arm portion;

[0016] The pull plate structure is installed on the end straight portion;

[0017] The inner end of the long oblique arm portion is hinged to the support.

[0018] Preferably, the pull plate structure comprises a pull plate;

[0019] The inner side wall of the pull plate is provided with a slope surface, and during the dismounting process, the slope surface of the pull plate extends into the gap between the pump body impeller and the pump body shell.

[0020] Preferably, a plurality of adjusting slide rods are fixedly installed on the pull plate and are slidingly connected to the end straight portion.

[0021] Preferably, the pushing structure comprises a pushing hydraulic cylinder, and the cylinder barrel of the pushing hydraulic cylinder is fixedly installed on the moving trolley;

[0022] The plunger rod of the pushing hydraulic cylinder is provided with an extended push rod, and the end of the extended push rod is provided with a jacking post;

[0023] During the dismounting process, the jacking post is supported on the pump body main shaft.

[0024] Preferably, a long sliding port is formed in the long oblique arm portion;

[0025] The control lever structure comprises a long control lever, and both ends of the long control lever penetrate through the long sliding port;

[0026] Both ends of the long control lever are respectively threadedly connected to a pair of locking nuts.

[0027] Preferably, a support sliding sleeve is fixedly connected to the central part of the long control lever, and the extended push rod is slidingly connected to the support sliding sleeve, so that the extended push rod is supported by the support sliding sleeve.

[0028] Preferably, a support roller is installed at the bottom of the dismounting arm;

[0029] The support roller comprises a wheel body and a wheel rod installed at the top position of the wheel body, and the wheel rod is fixedly installed on the dismounting arm.

[0030] Preferably, the bracket comprises a mouth-shaped bracket portion, a crossbeam is welded in the mouth-shaped bracket portion, a through hole is formed between the crossbeam and the upper end of the mouth-shaped bracket portion, the elongated push rod is penetrated through the through hole, and the elongated push rod is supported on the top of the crossbeam.

[0031] The bracket further comprises connecting rib plates welded at both sides, and the connecting rib plates are fixed on the moving trolley.

[0032] The utility model has the following beneficial effects:

[0033] 1. After the opening amplitude of the pull-out arm is adjusted according to the above mode, the pull plate structure is clamped into the gap between the pump body impeller and the shell of the pump body, at this time, the push hydraulic cylinder is opened, the elongated push rod and the jacking column are pushed by the push hydraulic cylinder, and the jacking column is supported on the pump body main shaft, at this time, the pull-out arm pulls the pump body impeller in the opposite direction to remove the pump body impeller from the pump body main shaft. In this process, the hydraulic cylinder plunger rod continuously extends, at this time, the moving trolley slowly moves in the opposite direction to cooperate with the removal of the pump body impeller.

[0034] The pump body impeller is removed by the pull-out arm removal mode, which solves the defects of the traditional knocking removal mode, including deformation of the impeller and labor.

[0035] And the pump body impeller of various models can be removed.

[0036] 2. A long sliding hole is formed in the long oblique arm portion of the pull-out arm, the control rod structure comprises a long control rod, and the two ends of the long control rod are penetrated through the long sliding hole. A pair of locking nuts are threadedly connected to the two ends of the long control rod.

[0037] In the process of turning and adjusting the opening and closing posture of the pull-out arm, the long control rod slides relative to the long sliding hole without affecting the posture adjustment of the pull-out arm. When the posture adjustment is completed, the two locking nuts are respectively screwed towards the pull-out arm until they are in contact with the pull-out arm, thereby appropriately locking the pull-out arm. In this way, the posture of the pull-out arm during the removal process is kept different, and the pull-out arm is prevented from being separated from the pump body impeller. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to the structures shown in these drawings without creating any creative labor.

[0039] Figure 1 It is a schematic diagram of the overall structure in the embodiments of the utility model.

[0040] Figure 2 This is a schematic diagram of the control rod structure in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the top column structure in an embodiment of this utility model;

[0042] Figure 4 This is an embodiment of the present utility model. Figure 1 The top view in the image.

[0043] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0046] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0047] Example 1

[0048] like Figures 1-4 As shown, a disassembly and maintenance device for a water pump in a coal mine underground pump room includes an impeller disassembly and pull mechanism. The impeller disassembly and pull mechanism enables disassembly and pull-out of the pump.

[0049] Specifically, the impeller dismounting mechanism comprises a bracket 41, both sides of the bracket 41 are respectively hinged with dismounting arms 2, the dismounting arms 2 are shaped as follows: the dismounting arms 2 comprise long oblique arm portions 22, and end straight portions 21 are integrally formed at the end portions of the long oblique arm portions 22.

[0050] Correspondingly, the bracket 41 comprises a mouth-shaped bracket portion, a cross beam 412 is welded in the mouth-shaped bracket portion, and a through hole is formed between the cross beam 412 and the upper end of the mouth-shaped bracket portion. The inner end of the long oblique arm portion 22 is hinged at the top of the cross beam 412 and the bottom position in the mouth-shaped bracket portion through a pin shaft.

[0051] Meanwhile, the bracket 41 further comprises connecting rib plates 411 welded at both sides, and the connecting rib plates 411 are fixed on the moving trolley (specifically, a triangular rib plate is welded on each of the left and right side walls at the front and rear ends of the mouth-shaped bracket portion to increase the stability of the bracket 41).

[0052] A pull plate structure 23 is mounted on the dismounting arm 2 (the end straight portion 21) and hung on the pump body impeller. During dismounting, the pull plate structure 23 is clamped into the gap between the pump body impeller and the shell of the pump body (the pump body impeller of a large water pump is a disc-shaped structure, which is different from the blade structure of a conventional small impeller, and the pump body impeller has a through hole and a channel structure, which are not shown in the figure).

[0053] The specific structure of the pull plate structure 23 is as follows:

[0054] The pull plate structure 23 comprises a pull plate 231, and a slope surface is arranged on the inner side wall of the pull plate 231 (for facilitating clamping into the inner side of the pump body impeller). During dismounting, the slope surface of the pull plate 231 extends into the gap between the pump body impeller and the shell of the pump body.

[0055] Meanwhile, a plurality of adjusting slide rods 232 are fixedly installed on the pull plate 231 and are slidingly connected to the end straight portion 21.

[0056] In this way, the spacing between the pull plates 231 can be conveniently adjusted.

[0057] In the above structure, during the working process of the dismounting arms 2 installed in a hinged manner, the spacing between the pull plates 231 can be adjusted after adjusting the opening and closing angle between the dismounting arms 2, so as to dismount the pump body impeller and the shell of the pump body of different models (for example, the shell of a multi-stage pump is dismounted by pulling and dismounting through the above structure).

[0058] The dismounting device further comprises a pushing structure fixedly installed on the moving trolley 6 (the bottom of the moving trolley 6 is provided with a rolling wheel 61), and the bracket 41 is fixedly installed on the moving trolley 6. During dismounting, the power output end of the pushing structure is supported on the main shaft of the pump body, and the dismounting arms 2 pull and dismount the pump body impeller.

[0059] Embodiment 2

[0060] As Figures 1-4 shown in the figure, the pushing structure in this embodiment is based on the structure of embodiment 1, and includes a pushing hydraulic cylinder 51, the cylinder barrel of which is fixedly installed on the moving trolley (the tail of the cylinder barrel is welded with an ear seat, which is fixed on the top of the moving trolley through a connecting shaft 511).

[0061] Meanwhile, the plunger rod of the pushing hydraulic cylinder 51 is installed with an extended push rod 52, and the end of the extended push rod 52 is installed with a jacking post 53. Specifically, a through hole is formed between the cross beam 412 and the upper end of the mouth-shaped bracket, the extended push rod 52 penetrates through the through hole, and the extended push rod 52 is supported on the top of the cross beam 412. In this way, the tail of the pushing hydraulic cylinder 51 is supported, the extended push rod 52 supports the cross beam 412, and the stability of the entire pushing hydraulic cylinder 51 is maintained.

[0062] During disassembly, the jacking post 53 is supported on the main shaft of the pump body.

[0063] During work, after adjusting the opening amplitude of the pull-out arm 2 in the above-mentioned manner, the pull plate 231 structure 23 is clamped into the gap between the pump body impeller and the shell of the pump body, at this time the pushing hydraulic cylinder 51 is opened, and the extended push rod 52 and the jacking post 53 are pushed to the jacking post 53 supported on the main shaft of the pump body. At this time, the pull-out arm 2 pulls the pump body impeller in the opposite direction to withdraw the pump body impeller from the main shaft of the pump body. During this process, the hydraulic cylinder plunger rod is continuously extended, at this time, the moving trolley slowly moves in the opposite direction to cooperate with the pump body impeller to be withdrawn.

[0064] The above-mentioned manner is also operated during the disassembly of the pump shell.

[0065] Embodiment 3

[0066] As Figures 1-4 shown in the figure, the pushing structure in this embodiment is based on the structure of embodiment 1, and includes a pushing hydraulic cylinder 51, the cylinder barrel of which is fixedly installed on the moving trolley (the tail of the cylinder barrel is welded with an ear seat, which is fixed on the top of the moving trolley through a connecting shaft 511).

[0067] Specifically, during the withdrawal of the impeller, the pull-out arm 2 is kept in a fixed posture, which increases the stability of the withdrawal.

[0068] Specifically, the long oblique arm part 22 of the pull-out arm 2 is provided with a long sliding hole 221; the control rod structure includes a long control rod 31, the two ends of which penetrate through the long sliding hole 221. The two ends of the long control rod 31 are respectively threadedly connected with a pair of locking nuts 311.

[0069] In the process of turning over the adjusting tension and closure posture of the pull-out arm 2, the long control rod 31 sliding relative to the long sliding port does not affect the posture adjustment of the pull-out arm 2. When the posture adjustment is completed, the pair of locking nuts 311 on both sides are respectively screwed close to the pull-out arm 2 until they abut against the pull-out arm 2, thereby achieving the proper locking of the pull-out arm 2.

[0070] Embodiment 4

[0071] As shown in Figures 1-4 the structure of Embodiment 3, in the working process, in order to further increase the stability of the pulling-out, the central part of the long control rod 31 is fixedly connected with a supporting sliding sleeve 32, and the lengthened push rod 52 is slidingly connected on the supporting sliding sleeve 32 (a through hole is formed on the supporting sliding sleeve 32), and the lengthened push rod 52 is supported by the supporting sliding sleeve 32. In this way, the lengthened push rod 52 is further supported, and the stability of the hydraulic cylinder and the lengthened push rod 52 is further increased.

[0072] Embodiment 5

[0073] As shown in Figures 1-4 the structure of Embodiment 4, the bottom of the pull-out arm 2 is provided with a supporting roller 24, and the supporting roller 24 comprises a roller body and a roller rod installed on the top of the roller body, and the roller rod is fixedly installed on the pull-out arm 2. In the process of moving the pull-out arm 2, the supporting roller is kept stable during the pulling-out by the supporting roller.

[0074] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Changes, modifications, additions or replacements made by the person skilled in the art within the essential scope of the present application should also belong to the protection scope of the present application.

Claims

1. A coal mine underground water pump house water pump dismounting and repairing device, characterized in that, The impeller pulling mechanism comprises a support, two pulling arms are hingedly connected to the two sides of the support respectively, and a pulling plate structure is installed on the pulling arms and hung on the impeller of the pump body. The pushing structure is fixedly installed on the moving trolley, and the support is fixedly installed on the moving trolley. During the dismounting process, the power output end of the pushing structure is supported on the main shaft of the pump body, and the pulling arms pull and dismount the impeller of the pump body. The control rod structure for controlling the opening angle of the pulling arms is installed between the pulling arms, and the opening range of the pulling arms is adjusted to the pulling plate structure during the pulling process. The end straight part is integrally formed at the end of the long oblique arm part.

2. The coal mine water pump house water pump dismounting and repairing device according to claim 1, characterized in that, The pulling plate structure is installed on the end straight part. The inner end of the long oblique arm part is hingedly connected to the support. The pulling plate structure comprises a pulling plate.

3. The coal mine water pump house water pump dismounting and repairing device according to claim 2, characterized in that, The inner side wall of the pulling plate is provided with a slope surface, and the slope surface of the pulling plate extends into the gap between the impeller of the pump body and the pump body shell during the dismounting process. A plurality of adjusting slide rods are fixedly installed on the pulling plate and are slidingly connected to the end straight part.

4. The coal mine water pump house water pump dismounting and repairing device according to claim 3, characterized in that, The pushing structure comprises a pushing hydraulic cylinder, and the cylinder barrel of the pushing hydraulic cylinder is fixedly installed on the moving trolley.

5. The coal mine water pump house water pump dismounting and repairing device according to claim 2, characterized in that, The plunger rod of the pushing hydraulic cylinder is provided with an elongated push rod, and the end of the elongated push rod is provided with a jacking column. During the dismounting process, the jacking column is supported on the main shaft of the pump body. A long sliding port is formed in the long oblique arm part.

6. The coal mine water pump house water pump dismounting and repairing device according to claim 5, characterized in that, The long control rod is provided at both ends thereof and penetrates through the long sliding port. A pair of locking nuts are threadedly connected to both ends of the long control rod. A supporting slide sleeve is fixedly connected to the center part of the long control rod, and the elongated push rod is slidingly connected to the supporting slide sleeve.

7. The coal mine water pump house water pump dismounting and repairing device according to claim 6, characterized in that, A supporting roller is installed at the bottom of the pulling arm.

8. The coal mine water pump house water pump dismounting and repairing device according to claim 2, characterized in that, The supporting roller comprises a wheel body and a wheel rod installed at the top of the wheel body, and the wheel rod is fixedly installed on the pulling arm. The support comprises a mouth-shaped frame part, a cross beam is welded in the mouth-shaped frame part, a through port is formed between the cross beam and the upper end of the mouth-shaped frame part, the elongated push rod penetrates through the through port, and the elongated push rod is supported on the top of the cross beam.

9. The coal mine water pump house water pump dismounting and repairing device according to claim 5, characterized in that, The support further comprises a connecting rib plate welded at both sides, and the connecting rib plate is fixedly installed on the moving trolley. ​

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