Device for assisting quick disassembly and assembly of water pump impeller

Abstract

The utility model provides a device for assisting in quick disassembly and assembly of a water pump impeller, which comprises a limiting seat, a first limiting unit, a second limiting unit, a third limiting unit and a pushing piece, and the limiting seat is provided with a limiting groove along the length direction; the first limiting unit, the second limiting unit and the third limiting unit are sequentially fixed to the limiting base in the length direction of the limiting base, and the distance between the first limiting unit and the second limiting unit is smaller than the distance between the second limiting unit and the third limiting unit. The pushing and abutting piece is installed on the side, facing the second limiting unit, of the third limiting unit, and the pushing and abutting piece is provided with an operation rod capable of stretching out or shortening towards the second limiting unit. According to the utility model, the impeller can be quickly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump impellers, in particular to a device for assisting the rapid disassembly and assembly of water pump impellers. Background Art

[0002] The water pumps commonly used in waterworks are horizontal single-stage double-suction water pumps. After a certain period of use, they need to be regularly inspected, maintained, and have parts replaced due to wear of seals and bearings. The impeller, as the core component of the water pump, needs to be removed from the shaft for inspection. However, in daily maintenance work, it is found that due to the interference fit between the impeller and the shaft, the impeller and the shaft often rust during the long-term use of the water pump, making it difficult to remove the impeller using traditional two-claw or three-claw pullers: 1. Since the impeller of the double-suction pump is basically installed in the middle of the shaft, the distance between the water pump impeller (250-450mm) and the shaft end (900-1200mm) is relatively large, and the puller claw is generally about 500mm long, and the pitch adjustment nut and claw foot are stressed. 1. The point has a large taper; 2. When disassembling a larger impeller, it is difficult to place and fix the force point of the puller claw foot, and the force is uneven; 3. When disassembling a large water pump impeller, a larger puller is required, and the volume and mass of the puller increase accordingly, making manual operation difficult and labor-intensive; 4. Since most of the water pumps currently used in water plants are cast iron impellers and 45# steel shafts, the torque needs to be increased after rusting, which can easily damage the impeller and sometimes cause damage to the shaft head, reducing work efficiency, making the reuse rate of parts low, causing waste of parts, and increasing maintenance costs. Therefore, there is an urgent need for a device that assists in the rapid disassembly and assembly of water pump impellers. Summary of the invention

[0003] The utility model aims to solve one of the above-mentioned technical problems and provides a device for assisting the rapid disassembly and assembly of a water pump impeller, which can realize the rapid disassembly and assembly of the impeller.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0005] A device for assisting the rapid disassembly and assembly of a water pump impeller comprises a limit seat, a first limit unit, a second limit unit, a third limit unit and a push piece, wherein the limit seat is provided with a limit groove along the length direction; the first limit unit, the second limit unit and the third limit unit are fixed on the limit seat in sequence along the length direction of the limit seat, and the distance between the first limit unit and the second limit unit is smaller than the distance between the second limit unit and the third limit unit; the push piece is installed on the side of the third limit unit facing the second limit unit, and the push piece is provided with an operating rod that can be extended or shortened toward the second limit unit.

[0006] Furthermore, the push member can rise or fall along the height direction of the third limiting unit.

[0007] Furthermore, the limiting groove is divided into an installation groove and a disassembly groove by a horizontal steel, the installation groove corresponds to the distance between the first limiting unit and the second limiting unit; the disassembly groove corresponds to the distance between the second limiting unit and the third limiting unit.

[0008] Furthermore, it also includes an adjustment rod, which is used to abut between the installation shaft and the working rod.

[0009] Furthermore, it also includes an upper frame and a clamping rod plate, the upper frame includes a top plate extending along the length direction of the limit seat, the clamping rod plate is installed on the top plate and can slide along the length direction of the top plate, and the clamping rod plate is used to clamp the adjustment rod.

[0010] Furthermore, the clamping rod plate includes two clamping parts, and the two clamping parts are slidably arranged on both sides of the top plate; the clamping part includes a deformation strip and an arc plate, one end of the deformation strip is slidably connected to the top plate, and the arc plate is connected to the end of the deformation strip facing away from the top plate, and the arc plate is provided with a groove adapted to the outer surface of the adjusting rod.

[0011] Furthermore, it also includes a spray gun pressing piece, which includes a mounting strip, a spray gun insertion plate and a pushing plate. The mounting strip is installed on the top plate and can slide along the length direction of the top plate. The spray gun insertion plate is connected to the mounting strip. A slot is penetrated through the spray gun insertion plate, and the slot is bent in the direction away from the pushing piece; the pushing plate is installed on the mounting strip, and the pushing plate can move in the direction away from or close to the mounting strip.

[0012] Furthermore, the top plate is provided with a lead screw motor along the length direction, and a frame is provided on the lead screw nut; the number of the mounting strips is two, one end of the two mounting strips extends into the frame and racks are provided on the opposite sides of the two mounting strips, and a gear is meshed with the two racks; a knob is connected to the gear and extends to the outside of the frame.

[0013] Furthermore, two lifting screws are provided on both sides of the limiting seat corresponding to the third limiting unit, and opposite ends of a mounting plate are sleeved on the two lifting screws; and the push member is installed on the mounting plate.

[0014] Furthermore, it also includes two detachably connected clamping blocks, the two clamping blocks are arranged on the mounting plate, the two clamping blocks are provided with clamping grooves adapted to the pushing members, and the two clamping blocks can be abutted against the third limiting unit.

[0015] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0016] When the impeller is removed by using the above-mentioned device for assisting the quick disassembly and assembly of the water pump impeller, the impeller is placed in the limiting groove for limiting, and one side of the impeller is pressed against the side of the second limiting unit facing the third limiting unit, and the working rod of the push member is pressed against the end of the installation shaft. When the working rod is extended toward the impeller, since the impeller is limited by the second limiting unit, the installation shaft moves relative to the impeller when the working rod pushes the installation shaft, and the impeller is separated from the installation shaft, thereby quickly completing the removal of the impeller. When the impeller is installed on the installation shaft, the impeller is placed and limited between the first limiting unit and the second limiting unit, and after one end of the installation shaft is aligned with the impeller, the other end of the installation shaft is pressed against the working rod, and the working rod is extended, and the installation shaft moves relative to the impeller, so that the installation shaft can be connected to the impeller. In the above process, the first limiting unit and the second limiting unit can ensure that the impeller does not tip forward and backward. It can be seen that the utility model can realize the quick disassembly and installation of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the installation structure of the device for quickly disassembling and assembling the auxiliary water pump impeller in Example 1.

[0018] Figure 2 This is a schematic diagram of the installation structure of the device for quickly disassembling and assembling the auxiliary water pump impeller in the second embodiment.

[0019] Figure 3 for Figure 2 Sectional view along line AA.

[0020] In the accompanying drawings, 1-limit seat, 10-limit slot, 110-installation slot, 102-disassembly slot, 11-horizontal steel, 2-first limit unit, 21-L-shaped steel, 22-triangular reinforcement steel plate, 3-second limit unit, 4-third limit unit, 41-lifting screw, 42-erection plate, 44-clamping block, 5-push member, 51-operating rod, 6-adjusting rod, 7-upper frame, 71-top plate, 711-slide, 712-screw motor, 713-frame, 714-gear, 715-knob, 716-switch, 81-deformation strip, 82-arc plate, 9-spray gun pressing member, 91-installation strip plate, 92-spray gun insertion plate, 93-push plate, 94-cylinder, 100-impeller, 101-installation shaft. DETAILED DESCRIPTION

[0021] 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.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] Embodiment 1:

[0025] like Figure 1 As shown, the first embodiment of the utility model provides a device for assisting the quick disassembly and assembly of the impeller of a water pump, which is used to realize the removal of the impeller 100 from the installation shaft 101 or the installation of the impeller 100 on the installation shaft 101. It includes a limit seat 1, a first limit unit 2, a second limit unit 3, a third limit unit 4 and a push member 5. The limit seat 1 is provided with a limit groove 10 along the length direction; the first limit unit 2, the second limit unit 3 and the third limit unit 4 are fixed on the limit seat 1 in sequence along the length direction of the limit seat 1, and the distance between the first limit unit 2 and the second limit unit 3 is smaller than the distance between the second limit unit 3 and the third limit unit 4. The push member 5 is installed on the side of the third limit unit 4 facing the second limit unit 3, and the push member 5 is provided with an operating rod 51 that can be extended or shortened toward the second limit unit 3. Specifically, the push member 5 adopts a jack in the prior art.

[0026] When using the above-mentioned auxiliary water pump impeller quick disassembly and assembly device to remove the impeller 100, the impeller 100 is placed in the limiting groove 10 for limiting, and one side of the impeller 100 is pressed against the side of the second limiting unit 3 toward the third limiting unit 4, and the working rod 51 of the push member 5 is pressed against the end of the installation shaft 101. When the working rod 51 is extended toward the impeller 100, since the impeller 100 is limited by the second limiting unit 3, the installation shaft 101 moves relative to the impeller 100 when the working rod 51 pushes the installation shaft 101, and the impeller 100 is disengaged from the installation shaft 101, thereby quickly completing the disassembly of the impeller 100. When installing the impeller 100 on the installation shaft 101, the impeller 100 is placed and limited between the first limiting unit 2 and the second limiting unit 3. After one end of the installation shaft 101 is aligned with the impeller 100, the other end of the installation shaft 101 is abutted against the working rod 51. The working rod 51 is extended, and the installation shaft 101 moves relative to the impeller 100, so that the installation shaft 101 and the impeller 100 can be connected. In the above process, the first limiting unit 2 and the second limiting unit 3 can ensure that the impeller 100 does not tip forward or backward.

[0027] In this embodiment, the first limiting unit 2, the second limiting unit 3 and the third limiting unit 4 have the same structure, and the first limiting unit 2 is taken as an example for description. The first limiting unit 2 includes two L-shaped steels 21, which are welded in parallel to opposite sides of the limiting groove 10, and the distance between the two L-shaped steels 21 corresponds to the limiting groove 10, so that the bottom of the impeller 100 is limited in the limiting groove 10, and the two sides of the impeller 100 can be limited by the two L-shaped steels 21, and the distance between the two L-shaped steels 21 can allow the installation shaft 101 to pass through. A triangular reinforcing steel plate 22 is also welded at the connection between each L-shaped steel 21 and the limiting seat 1.

[0028] In this embodiment, the push member 5 can rise or fall along the height direction of the third limiting unit 4. Specifically, two lifting screws 41 are provided on both sides of the limiting seat 1 corresponding to the third limiting unit 4, and the opposite ends of a mounting plate 42 are sleeved on the two lifting screws 41; the push member 5 is installed on the mounting plate 42. In detail, the device for assisting the rapid disassembly and assembly of the water pump impeller also includes two detachably connected clamping blocks 44, the two clamping blocks 44 are placed on the mounting plate 42, and the two clamping blocks 44 are provided with clamping grooves adapted to the push member 5, and the two clamping blocks 44 can resist the third limiting unit 4. The detachable connection method of the two clamping blocks 44 is as follows: the two clamping blocks 44 are provided with a clamping groove on one side facing the second limiting unit 3, and the clamping groove is used to clamp the push-pull member 5; the clamping block 44 located at the bottom is provided with an insertion hole on the top surface facing away from the mounting plate 42, and the clamping block 44 located at the top is provided with a plug-in flange corresponding to the insertion hole, and after the plug-in flange is inserted into the insertion hole, a bolt is screwed in from the side of the clamping block 44 located at the bottom facing away from the push-pull member 5 to fix it. When the two lifting screws 41 are operated synchronously, the two clamping blocks 44 can be raised or lowered along the height direction of the third limiting unit 4 to adjust the height of the push-pull member 5, so that the push-pull member 5 can correspond to the installation shaft 101 of water pumps of different sizes. The two clamping blocks 44 are not fixed to the mounting plate 42. When the push member 5 is working, after the working rod 51 receives the reaction force of the installation shaft 101, the two clamping blocks 44 can move toward the third limiting unit 4 and abut against the third limiting unit 4. Since the third limiting unit 4 has a stronger rigidity, the limiting force of the third limiting unit 4 can enable the push member 5 to better push the installation shaft 101.

[0029] In this embodiment, the limiting groove 10 is divided into an installation groove 110 and a disassembly groove 102 by a horizontal steel bar 11. The installation groove 110 corresponds to the distance between the first limiting unit 2 and the second limiting unit 3; the disassembly groove 102 corresponds to the distance between the second limiting unit 3 and the third limiting unit 4. The disassembly groove 102 is used to place the impeller 100 and limit one side of the impeller 100 when disassembling the impeller 100, and the installation groove 110 is used to place the impeller 100 and limit the opposite sides of the impeller 100 when installing the impeller 100.

[0030] In this embodiment, the device for assisting the quick disassembly and assembly of the water pump impeller further includes an adjusting rod 6, which is used to abut between the installation shaft 101 and the working rod 51. Specifically, the end of the installation shaft 101 abuts against one end of the adjusting rod 6, and the working rod 51 abuts against the other end of the adjusting rod 6. It can be understood that the material of the adjusting rod 6 is steel, and the operator can select an adjusting rod 6 of a corresponding length according to the length of the installation shaft 101 on water pumps of different sizes, so as to ensure that the force of the working rod 51 can act on the installation shaft 101.

[0031] Embodiment 2:

[0032] like Figures 1 to 3 As shown, the second embodiment of the utility model provides a device for assisting the quick disassembly and assembly of the water pump impeller, which is used to remove the impeller 100 from the mounting shaft 101 or to install the impeller 100 on the mounting shaft 101. The structure of the device for assisting the quick disassembly and assembly of the water pump impeller in this embodiment is roughly the same as that of the device for assisting the quick disassembly and assembly of the water pump impeller in the first embodiment, and the difference lies in the following points:

[0033] In this embodiment, the device for assisting the rapid disassembly and assembly of the water pump impeller also includes an upper frame 7 and a clamping rod plate. The upper frame 7 includes a top plate 71 extending along the length direction of the limit seat 1. The clamping rod plate is installed on the top plate 71 and can slide along the length direction of the top plate 71. The clamping rod plate is used to clamp the adjusting rod 6. Specifically, the clamping rod plate includes two clamping parts, and the two clamping parts are slidably arranged on both sides of the top plate 71; the clamping part includes a deformation strip 81 and an arc plate 82, one end of the deformation strip 81 is slidably connected to the top plate 71. In detail, both sides of the top plate 71 A slide groove 711 is provided along the length direction; the deformation bar 81 is made of a silicone tube filled with a tough magnesium-aluminum alloy, so that the entire deformation bar 81 can be bent. The material and use of the deformation bar 81 are prior art and will not be repeated here; one end of the deformation bar 81 is connected to a slider, which is slidably arranged in the slide groove 711, and the slider is not shown in the figure; the arc plate 82 is connected to the end of the deformation bar 81 away from the top plate 71, and the arc plate 82 is provided with a groove adapted to the outer surface of the adjustment rod 6, so that the two arc plates 82 can clamp the adjustment rod 6. The setting of the clamping plate can clamp the adjustment rod 6 after completing the disassembly of a water pump, so as to facilitate the operator to replace another water pump of the same size, and because the deformation bar 81 can be deformed, the adjustment rod 6 can be adjusted to a suitable position.

[0034] In this embodiment, the device for assisting the quick disassembly and assembly of the water pump impeller further includes a spray gun pressing member 9, which includes a mounting strip 91, a spray gun insertion plate 92, and a push plate 93. The mounting strip 91 is mounted on the top plate 71 and can slide along the length direction of the top plate 71. Specifically, the top plate 71 is equipped with a screw motor 712 along the length direction, and a frame 713 is installed on the screw nut; there are two mounting strips 91, one end of the two mounting strips 91 extends into the frame 713, and a rack is provided on the opposite side of the two mounting strips 91, and a gear 714 meshes with the two racks; a knob 715 is connected to the gear 714 and extends to the outside of the frame 713; when the knob 715 is turned, the two mounting strips 91 can move toward or away from each other, so that the distance between the two mounting strips 91 is shortened or increased. The spray gun insertion plate 92 is connected to the mounting strip 91. In detail, the spray gun insertion plate 92 is connected to the end of the mounting strip 91 away from the frame 713; a slot 921 is opened through the spray gun insertion plate 92, and the slot 921 is bent in the direction away from the push member 5 so as to be used for inserting the gun head of the heating spray gun and making the heating spray gun face the side where the impeller 100 is connected to the mounting shaft 101; the pushing plate 93 is installed on the mounting strip 91, and the pushing plate 93 can move in the direction away from or close to the mounting strip 91. In detail, a cylinder 94 is installed on the mounting strip 91, and the pushing plate 93 is connected to the working axis of the cylinder 94. The cylinder 94 drives the pushing plate 93 to move in the direction away from or close to the mounting strip 91 to press or release the operating handle of the heating spray gun.

[0035] When the existing method is used to disassemble the impeller 100, the connection between the impeller 100 and the mounting shaft 101 is heated with a heating spray gun to speed up the separation of the impeller 100 from the mounting shaft 101. In this embodiment, the heating spray gun is inserted into the slot 921 and the operation of the heating spray gun is controlled by the control cylinder 94, which can reduce manpower.

[0036] It can be understood that before placing the water pump on the limit seat 1, first turn the knob 715 so that the distance between the two mounting strips 91 can be located on both sides of the mounting axis 101, and by adjusting the shapes of the two deformation strips 81, the two arc plates 82 can be located on both sides of the mounting axis 101; when the water pump is placed on the limit seat 1, move the upper frame 7 to the position where the top plate 71 is located above the limit seat 1, and then adjust the distance between the two mounting strips 91 and the distance between the two arc plates 82 so that the heating spray gun can correspond to the working position, and the two arc plates 82 place the adjustment rod 6 at the preset position.

[0037] In this embodiment, a switch 716 for controlling the cylinder 94 and the screw motor 712 is provided on the top plate 71 to control the operation of the corresponding components. The control and connection methods of the switch 716 are well known to those skilled in the art and will not be described in detail here.

[0038] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. A device for assisting the rapid disassembly and assembly of a water pump impeller, characterized in that: The invention comprises a limit seat (1), a first limit unit (2), a second limit unit (3), a third limit unit (4) and a push member (5); the limit seat (1) is provided with a limit slot (10) along the length direction; the first limit unit (2), the second limit unit (3) and the third limit unit (4) are fixed on the limit seat (1) in sequence along the length direction of the limit seat (1), and the distance between the first limit unit (2) and the second limit unit (3) is smaller than the distance between the second limit unit (3) and the third limit unit (4); the push member (5) is installed on the side of the third limit unit (4) facing the second limit unit (3), and the push member (5) is provided with an operating rod (51) which can be extended or shortened toward the second limit unit (3).

2. A device for quickly disassembling and assembling an auxiliary water pump impeller as claimed in claim 1, characterized in that: The push member (5) can rise or fall along the height direction of the third limiting unit (4).

3. A device for quickly disassembling and assembling an auxiliary water pump impeller as claimed in claim 1, characterized in that: The limiting groove (10) is divided into an installation groove (110) and a disassembly groove (102) by a horizontal steel (11); the installation groove (110) corresponds to the distance between the first limiting unit (2) and the second limiting unit (3); and the disassembly groove (102) corresponds to the distance between the second limiting unit (3) and the third limiting unit (4).

4. A device for assisting the rapid disassembly and assembly of a water pump impeller as claimed in claim 1, characterized in that: It also comprises an adjusting rod (6), wherein the adjusting rod (6) is used to abut between the mounting shaft (101) and the operating rod (51).

5. A device for quickly disassembling and assembling an auxiliary water pump impeller as claimed in claim 4, characterized in that: It also includes an upper frame (7) and a clamping rod plate, wherein the upper frame (7) includes a top plate (71) extending along the length direction of the limit seat (1), the clamping rod plate is installed on the top plate (71) and can slide along the length direction of the top plate (71), and the clamping rod plate is used to clamp the adjusting rod (6).

6. A device for quickly disassembling and assembling an auxiliary water pump impeller as claimed in claim 5, characterized in that: The clamping rod plate includes two clamping parts, and the two clamping parts are slidably arranged on both sides of the top plate (71); the clamping part includes a deformation strip (81) and an arc plate (82), one end of the deformation strip (81) is slidably connected to the top plate (71), and the arc plate (82) is connected to the end of the deformation strip (81) away from the top plate (71), and the arc plate (82) is provided with a groove adapted to the outer surface of the adjusting rod (6).

7. A device for assisting the rapid disassembly and assembly of a water pump impeller as claimed in claim 5, characterized in that: It also includes a spray gun pressing piece (9), the spray gun pressing piece (9) includes a mounting strip (91), a spray gun insertion plate (92) and a push plate (93), the mounting strip (91) is mounted on the top plate (71) and can slide along the length direction of the top plate (71), the spray gun insertion plate (92) is connected to the mounting strip (91), a slot (921) is penetrated and opened on the spray gun insertion plate (92), and the slot (921) is bent in a direction away from the push piece (5); the push plate (93) is mounted on the mounting strip (91), and the push plate (93) can move in a direction away from or close to the mounting strip (91).

8. A device for assisting the rapid disassembly and assembly of a water pump impeller as claimed in claim 7, characterized in that: The top plate (71) is provided with a screw motor (712) along the length direction, and a frame (713) is provided on the screw nut; the number of the mounting strips (91) is two, one end of the two mounting strips (91) extends into the frame (713), and racks are provided on the opposite sides of the two mounting strips (91), and a gear (714) meshes with the two racks; a knob (715) is connected to the gear (714) and extends to the outside of the frame (713).

9. The device for assisting the rapid disassembly and assembly of a water pump impeller as claimed in claim 2, characterized in that: The limiting seat (1) is provided with two lifting screws (41) on both sides corresponding to the third limiting unit (4); the opposite ends of a mounting plate (42) are sleeved on the two lifting screws (41); and the push member (5) is installed on the mounting plate (42).

10. A device for assisting the rapid disassembly and assembly of a water pump impeller as claimed in claim 9, characterized in that: It also comprises two detachably connected snap-in blocks (44), the two snap-in blocks (44) being arranged on the mounting plate (42), the two snap-in blocks (44) being provided with snap-in grooves adapted to the push-in member (5), and the two snap-in blocks (44) being capable of abutting against the third limiting unit (4).

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