CN217317837U - Dismounting tool for high-pressure multistage flat displacement pump - Google Patents
Dismounting tool for high-pressure multistage flat displacement pump Download PDFInfo
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- CN217317837U CN217317837U CN202220562849.8U CN202220562849U CN217317837U CN 217317837 U CN217317837 U CN 217317837U CN 202220562849 U CN202220562849 U CN 202220562849U CN 217317837 U CN217317837 U CN 217317837U
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- claw
- end sleeve
- sleeve
- buckle
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Abstract
The utility model discloses a disassembly and assembly tool of a high-pressure multistage flat displacement pump, which comprises a pulling claw, an end sleeve and a hydraulic cylinder, wherein the pulling claw comprises a claw plate and claw arms hinged on the outer peripheral surface of the grabbing plate, and one end of each claw arm far away from the grabbing plate is hinged with a claw; one end of the end sleeve is detachably connected to the claw plate, and the other end of the end sleeve is detachably connected to a cylinder barrel of the hydraulic cylinder; both ends of the end sleeve are open; the center of the claw plate is provided with a center hole which penetrates through the two sides of the claw plate in the thickness direction, and the center hole and the inner cavity of the end sleeve are coaxially arranged; in the extending direction of the end sleeve, a piston rod of the hydraulic cylinder is opposite to the inner cavity of the end sleeve, and the piston rod can extend out towards the direction of the pull claw. By the aid of the method, the parts are prevented from being damaged in the dismounting process, the quality is guaranteed under the condition of improving the operation efficiency, the whole operation time period is shortened, the labor intensity of operators is reduced, and the life safety is guaranteed.
Description
Technical Field
The utility model relates to a dismouting frock of multistage flat displacement pump of high pressure.
Background
In various chemical and oil refining enterprises, a large amount of multi-stage pump equipment such as multi-stage high-pressure solvent pumps, raw material pumps and the like needs to be equipped to meet the requirement of large-scale production,
in the maintenance process of the multistage pumps, due to the fact that the rotor is large in size and multiple in stages, the impellers in part of the rotors are in interference fit with the shaft, in the operation process, a prying bar or a drill rod is required to be inserted into a gap between the impellers and the shell to pry or knock, meanwhile, the surfaces of the impellers are required to be locally heated through gas welding, so that the impellers slide on the shaft, but the operation method usually causes serious deformation of the outer circle edge end of the impellers and a runner port, so that the whole impellers are scrapped, or the impellers are not uniformly stressed so that the impellers and the shaft are seized, and finally, the impellers can only be disassembled in a damage mode, so that the maintenance cost of equipment is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a disassembly and assembly tool of a high-pressure multistage flat displacement pump, which comprises a pulling claw, an end sleeve and a hydraulic cylinder, wherein the pulling claw comprises a circular claw plate and at least three claw arms hinged on the outer peripheral surface of the grabbing plate, and one end of each claw arm far away from the grabbing plate is hinged with a claw; one end of the end sleeve is detachably connected to the claw plate, and the other end of the end sleeve is detachably connected to a cylinder barrel of the hydraulic cylinder; both ends of the end sleeve are open;
a central hole is formed in the center of the claw plate, penetrates through two sides of the thickness direction of the claw plate and is coaxial with the inner cavity of the end sleeve; in the extending direction of the end sleeve, a piston rod of the hydraulic cylinder is opposite to the inner cavity of the end sleeve, and the piston rod can extend out towards the direction of the pull claw.
The application is applicable to the disassembly of impellers and balance drums of various high-pressure solvent pumps with different levels and multi-level raw material pumps.
When the multi-stage flat displacement pump works, firstly, the inner container rotor of the high-pressure multi-stage flat displacement pump is drawn out from the shell, the inner container rotor is placed on the operating platform, then the balance drum and the pair wheel component are disassembled, the disassembling tool is sleeved on the rotating shaft of the inner container rotor, the clamping jaws are clamped on the outer edge of the outermost impeller, then the hydraulic cylinder is started, the piston rod extends and is pressed on the end head of the rotating shaft, after the piston rod is pressed on the end head of the rotating shaft, the cylinder barrel continues to move towards the direction far away from the rotating shaft, the impeller is pulled until the impeller is separated from the original position, then the disassembling tool is taken down, the disassembled impeller is taken down from the rotating shaft, and then the adjacent guide vanes are disassembled. The second impeller is then removed according to the above steps until all of the impellers and vanes have been removed.
Utilize the dismantlement frock in this application can also dismantle balancing drum at first, then progressively dismantle each impeller and stator again.
By the aid of the method, the parts are prevented from being damaged in the dismounting process, the quality is guaranteed under the condition of improving the operation efficiency, and the whole operation time period is shortened. And therefore, the labor intensity of operators is reduced, the life safety is ensured, and the replacement cost of accessories is greatly reduced.
Furthermore, for adjusting the position of dismantling the frock, be provided with at least one adjusting bolt group on the tip sleeve, every adjusting bolt group includes at least three adjusting bolt, and each adjusting bolt's first screw rod from the outside to the inside revolves to twist on the telescopic section of thick bamboo wall of tip, and during first screw rod inwards stretched into the telescopic inner chamber of tip, it filled up to install nylon at one of first screw rod stretching into in the telescopic inner chamber of tip. And the nylon cushion is utilized to prevent the surface of the rotating shaft from being scratched by the adjusting bolt.
Specifically, each claw comprises a claw rod hinged on a claw arm, a claw hook is arranged at one end, away from the claw arm, of the claw rod, a limiting block is arranged at the middle part of the claw rod, a clamping groove is formed between the claw hook and the limiting block, a locking bolt is screwed on the limiting block, a second screw rod of the locking bolt extends in the direction from the limiting block to the claw hook, and the second screw rod penetrates through the limiting block. After the clamping jaw is clamped on a part needing to be disassembled, the locking bolt is screwed, the locking bolt can be abutted against the part needing to be disassembled, and the clamping jaw is prevented from being separated from the part needing to be disassembled in the disassembling process, so that the disassembling is not influenced.
Further, for ease of connection, the end sleeve is connected to the cylinder barrel of the hydraulic cylinder via a connector; one end of the connector is connected to a cylinder barrel of the hydraulic cylinder through threads, and the other end of the connector is connected to the end sleeve through a rotary buckle assembly;
the rotary buckle assembly comprises a buckle seat and a buckle, wherein the buckle seat is arranged on one of the connector and the end sleeve, and the buckle is arranged on the other of the connector and the end sleeve. By means of the connecting head, the end sleeve can be conveniently connected to the hydraulic cylinder.
Further, at least one section of middle sleeve is arranged between the end sleeve and the connector, when the middle sleeve comprises at least two sections, the adjacent middle sleeves are connected together through the rotating buckle assembly, the middle sleeve adjacent to the end sleeve is connected to the end sleeve through the rotating buckle assembly, and the middle sleeve adjacent to the connector is connected to the connector through the rotating buckle assembly. In the dismantlement in-process, along with dismantling of impeller and stator, the impeller that needs to dismantle and the distance crescent of pivot tip need constantly prolong the length of dismantling the frock, just can satisfy the dismantlement needs, in this application, the adoption is prolonged the length of dismantling the frock between tip sleeve and connector with the method that increases middle sleeve, along with dismantling going on, increases middle sleeve gradually between tip sleeve and connector to the length of frock is dismantled in the extension, makes and dismantles going on smoothly.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
Fig. 2 is a schematic view of the end sleeve construction.
Fig. 3 is a view from a-a in fig. 2.
Fig. 4 is a schematic structural diagram of the connecting head.
Fig. 5 is a view from direction B in fig. 2.
Fig. 6 is a view in the direction C of fig. 4.
Fig. 7 is a schematic structural diagram of another embodiment of the present application.
Fig. 8 is a schematic view of the construction of the intermediate sleeve.
FIG. 9 is a state diagram for use of one embodiment.
Detailed Description
Example 1
Referring to fig. 1 to 6, a disassembling and assembling tool 100 for a high-pressure multistage flat displacement pump includes a pull claw 10, an end sleeve 20, a connector 40, and a hydraulic cylinder 30. The pulling claw 10 comprises a circular claw plate 11 and three claw arms 12, wherein one end of each claw arm 12 is hinged on the outer peripheral surface of the claw plate 11 through a first hinge shaft 14, and the other end of each claw arm 12 is hinged with a claw 13 through a second hinge shaft 15.
In this embodiment, each of the claws 13 includes a claw rod 131, the claw rod 131 is hinged to the claw arm 12 via a second hinge shaft, a claw hook 132 is disposed at an end of the claw rod 131 away from the claw arm, a stopper 133 is disposed at an intermediate portion of the claw rod 131, a locking groove 134 is formed between the claw hook 132 and the stopper 133, and a locking bolt 135 is screwed onto the stopper, and a second screw of the locking bolt extends in a direction from the stopper to the claw hook, and the second screw penetrates through the stopper.
One end of the end sleeve is detachably connected to the claw plate 11 via a connecting bolt 23, and a center hole 111 is formed in the center of the claw plate 11, and the center hole 111 penetrates through both sides of the claw plate in the thickness direction.
The two ends of the end sleeve are both open, and the central hole 111 and the inner cavity of the end sleeve are coaxially arranged. The other end of the end sleeve is connected to the cylinder tube 31 of the hydraulic cylinder 30 via a connection head 40. In the direction of extension of the end sleeve, the piston rod 32 of the hydraulic cylinder 30 faces the inner space of the end sleeve and can be extended in the direction of the pull pawl.
The connector 40 includes a cylindrical barrel 41, an internal thread 42 is provided on an inner wall of one end of the barrel 41, a first buckle 43 is provided at the other end of the barrel, the first buckle 43 includes four buckle blocks 44 evenly provided on an outer circumferential surface of the barrel, and a through groove 45 is formed between adjacent buckle blocks. The connecting head is connected to the external thread of the cylinder 31 via this internal thread, i.e. one end of the connecting head is connected to the cylinder barrel of the hydraulic cylinder via a thread.
The end part sleeve is provided with a first buckling seat 24 at one end far away from the pulling claw, the first buckling seat 24 comprises an annular flange 240 arranged at one end far away from the pulling claw of the end part sleeve, the outer end of the flange 240 extends towards the direction far away from the pulling claw and forms an annular cylinder 241, the annular cylinder is provided with four convex blocks 242, the four convex blocks 242 are uniformly arranged along the circumferential direction of the annular cylinder, each convex block 242 protrudes towards the direction of the central axis 200 of the end part sleeve, a buckling notch 244 is formed between the adjacent convex blocks 242, and a buckling groove 243 is formed between the convex blocks 242 and the flange 240.
The first buckle seat 24 and the first buckle 43 form a rotary buckle assembly, when the first buckle seat 24 and the first buckle 43 need to be connected together, the first buckle and the first buckle seat 24 are close to each other, the buckle block 44 of the first buckle passes through the buckle notch 244, the protrusion 242 passes through the through groove 45, the buckle block 44 abuts against the flange 240, then the first buckle seat 24 and the first buckle 43 rotate relatively, the buckle block 44 is inserted into the buckle groove 243, and the first buckle seat 24 and the first buckle 43 are connected together. When the first buckle seat 24 and the first buckle 43 need to be disassembled, the first buckle seat 24 and the first buckle 43 can be disassembled according to the reverse operation of the above steps. I.e. the other end of the connector is connected to the end sleeve via a rotary snap assembly. I.e. the end sleeve is detachably connected to the cylinder barrel of the hydraulic cylinder. It will be appreciated that in another embodiment, the catch socket may also be provided on the connector head with the catch provided on the end sleeve.
In this embodiment, in order to adjust the position of the end sleeve, two adjusting bolt sets are arranged on the end sleeve, each adjusting bolt set comprises three adjusting bolts 25, a first screw of each adjusting bolt 25 is screwed on the cylinder wall 21 of the end sleeve from outside to inside, the first screw extends inwards into the inner cavity of the end sleeve, and a nylon cushion 26 is mounted at one end of the first screw extending into the inner cavity of the end sleeve.
Referring to fig. 9, when the present embodiment works, first, the liner rotor 70 of the high-pressure multistage flat displacement pump is pulled out from the housing, and the liner rotor 70 is placed on the operation table, then the balance drum and the pair wheel part are removed, the removal tool 100 is sleeved on the rotating shaft 71 of the liner rotor 70, so that the jaws 13 are clamped on the outer edge of the outermost impeller 73 through the clamping grooves 134, then the adjusting bolts 25 are screwed, the end sleeve is coaxial with the rotating shaft, the hydraulic cylinder 30 is started, the piston rod 32 is extended and pressed against the end of the rotating shaft, after the piston rod is pressed against the end of the rotating shaft, the cylinder 31 continues to move in the direction away from the rotating shaft, the impeller is pulled until the impeller is separated from the original position, then the removal tool is removed, the impeller with the removed guide vanes is removed from the rotating shaft, and then the adjacent guide vanes 72 are removed. The second impeller is then removed according to the above steps until all of the impellers and vanes have been removed.
The balance drum can be firstly disassembled by utilizing the disassembling tool in the embodiment, and then each impeller and each guide vane are gradually disassembled.
Example 2
In this embodiment, a section of middle sleeve 50 is disposed between the end sleeve and the connector, a second buckle 51 is disposed at one end of the middle sleeve, a second buckle seat 52 is disposed at the other end of the middle sleeve, the second buckle 51 has the same structure as the first buckle, and the second buckle seat 52 has the same structure as the first buckle.
The second buckle 51 is clamped on the first buckle seat 24, and the first buckle 43 is clamped on the second buckle seat 52, so that the second buckle 51 and the first buckle seat 24 form a rotary buckle assembly, and the first buckle 43 and the second buckle seat 52 form another rotary buckle assembly, that is, the middle sleeve is connected to the end sleeve and the connecting head through the rotary buckle assembly respectively.
It will be appreciated that when the intermediate sleeve comprises at least two segments, adjacent intermediate sleeves are connected together via a rotary snap assembly, and intermediate sleeves adjacent the end sleeves are connected to the end sleeves via a rotary snap assembly, and intermediate sleeves adjacent the connector are connected to the connector via a rotary snap assembly.
Claims (5)
1. The disassembly and assembly tool for the high-pressure multistage flat displacement pump is characterized by comprising a pulling claw, an end sleeve and a hydraulic cylinder, wherein the pulling claw comprises a circular claw plate and at least three claw arms hinged to the outer peripheral surface of the claw plate, and one end, far away from the claw plate, of each claw arm is hinged to a claw; one end of the end sleeve is detachably connected to the claw plate, and the other end of the end sleeve is detachably connected to a cylinder barrel of the hydraulic cylinder; both ends of the end sleeve are open;
a central hole is formed in the center of the claw plate, penetrates through two sides of the thickness direction of the claw plate and is coaxial with the inner cavity of the end sleeve; in the extending direction of the end sleeve, a piston rod of the hydraulic cylinder is opposite to the inner cavity of the end sleeve, and the piston rod can extend out towards the direction of the pull claw.
2. The disassembly tool of claim 1, wherein the end sleeve is provided with at least one adjusting bolt set, each adjusting bolt set comprises at least three adjusting bolts, a first screw rod of each adjusting bolt is screwed on the wall of the end sleeve from outside to inside, the first screw rod extends inwards into the inner cavity of the end sleeve, and a nylon gasket is arranged at one end of the first screw rod extending into the inner cavity of the end sleeve.
3. The disassembling tool according to claim 1, characterized in that each jaw comprises a claw rod hinged on a claw arm, a claw hook is arranged at one end of the claw rod far away from the claw arm, a limit block is arranged at the middle part of the claw rod, a clamping groove is formed between the claw hook and the limit block, a locking bolt is screwed on the limit block, a second screw rod of the locking bolt extends along the direction from the limit block to the claw hook, and the second screw rod penetrates through the limit block.
4. The disassembly tool of claim 1, wherein the end sleeve is connected to a cylinder barrel of the hydraulic cylinder through a connector; one end of the connector is connected to a cylinder barrel of the hydraulic cylinder through threads, and the other end of the connector is connected to the end sleeve through a rotary buckle assembly;
the rotary buckle assembly comprises a buckle seat and a buckle, wherein the buckle seat is arranged on one of the connector and the end sleeve, and the buckle is arranged on the other of the connector and the end sleeve.
5. The disassembly tool of claim 4,
at least one section of middle sleeve is arranged between the end sleeve and the connector, when the middle sleeve comprises at least two sections, the adjacent middle sleeves are connected together through a rotating buckle component, the middle sleeve adjacent to the end sleeve is connected to the end sleeve through the rotating buckle component, and the middle sleeve adjacent to the connector is connected to the connector through the rotating buckle component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220562849.8U CN217317837U (en) | 2022-03-15 | 2022-03-15 | Dismounting tool for high-pressure multistage flat displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220562849.8U CN217317837U (en) | 2022-03-15 | 2022-03-15 | Dismounting tool for high-pressure multistage flat displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217317837U true CN217317837U (en) | 2022-08-30 |
Family
ID=83001343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220562849.8U Active CN217317837U (en) | 2022-03-15 | 2022-03-15 | Dismounting tool for high-pressure multistage flat displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217317837U (en) |
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2022
- 2022-03-15 CN CN202220562849.8U patent/CN217317837U/en active Active
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