CN217167352U - Dismounting device for hydraulic end gland - Google Patents
Dismounting device for hydraulic end gland Download PDFInfo
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- CN217167352U CN217167352U CN202220814329.1U CN202220814329U CN217167352U CN 217167352 U CN217167352 U CN 217167352U CN 202220814329 U CN202220814329 U CN 202220814329U CN 217167352 U CN217167352 U CN 217167352U
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- gland
- pump head
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- lead screw
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- 210000004907 gland Anatomy 0.000 title claims abstract description 95
- 239000012530 fluid Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The dismounting device for the hydraulic end gland comprises a lead screw, a self-jacking oil cylinder, a pump head fixing cover, an adjusting screw cap and a manual hydraulic pump; one end of the screw rod is a gland connecting end and is provided with gland threads matched with the threads in the gland opening, and the screw rod sequentially passes through the pump head fixing cover, the self-jacking oil cylinder and the screw rod through hole of the adjusting screw cap, so that the pump head fixing cover, the self-jacking oil cylinder and the adjusting screw cap are sequentially arranged on the screw rod from near to far away from the gland connecting end of the screw rod; the gland connecting end of the lead screw is connected with an opening in the center of the gland, and one end, close to the gland connecting end of the lead screw, of the pump head fixing cover is connected with the pump head of the hydraulic end assembly; and oil holes are respectively formed in the two ends of the side wall of the cylinder barrel of the self-jacking oil cylinder in the direction of the lead screw, and the oil holes are connected with the manual hydraulic pump through oil pipes. The damage of other parts caused by violently taking out the gland is avoided, and meanwhile, the damaged gland can be quickly taken out.
Description
Technical Field
The invention relates to the technical field of dismounting of a gland in a hydraulic end assembly of a fracturing pump, in particular to a dismounting device for a hydraulic end gland.
Background
A gland used for sealing and a pressing cap used for fixing the gland are arranged in a pump head body of a fracturing pump hydraulic end assembly, the sealing of an inner cavity of a pump head body and a plunger is realized through the gland, and the gland is fixed by screwing the pressing cap into a thread of the pump head body.
However, when the gland is damaged and needs to be replaced, the pressing cap for fixing the gland can be directly screwed out of the pump head body through rotation, but the gland is actually clamped in the pump head body, so that when the gland is replaced, the suction cover and the plunger of the hydraulic end assembly need to be detached, the damaged gland can be taken down and replaced by a new gland, time and labor are wasted in replacing the gland, and the efficiency is very low. Or the gland is violently taken out through the tool, so that other parts in the hydraulic end assembly are easily damaged, and the service life of the tool is influenced.
Therefore, the problems of the prior art are to be further improved and developed.
Disclosure of Invention
The object of the invention is: in order to solve the problems in the prior art, the invention aims to provide a dismounting device which is convenient for dismounting a gland in a fracturing pump hydraulic end assembly.
The technical scheme is as follows: in order to solve the technical problem, the technical scheme provides a dismounting device for a hydraulic end gland, which is used for dismounting the gland in a hydraulic end assembly of a fracturing pump and comprises a lead screw, a self-jacking oil cylinder, a pump head fixing cover, an adjusting screw cap and a manual hydraulic pump,
the central shafts of the pump head fixing cover, the self-jacking oil cylinder and the adjusting screw cap are respectively provided with a lead screw through hole;
one end of the screw rod is a gland connecting end and is provided with gland threads matched with the threads in the gland opening, and the screw rod sequentially passes through the pump head fixing cover, the self-jacking oil cylinder and the screw rod through hole of the adjusting screw cap, so that the pump head fixing cover, the self-jacking oil cylinder and the adjusting screw cap are sequentially arranged on the screw rod from near to far away from the gland connecting end of the screw rod;
the gland connecting end of the lead screw is connected with an opening in the center of the gland, and one end, close to the gland connecting end of the lead screw, of the pump head fixing cover is connected with the pump head of the hydraulic end assembly;
and oil holes are respectively formed in the two ends of the cylinder barrel of the self-jacking oil cylinder, which are arranged on the side wall in the direction of the lead screw, and the oil holes are connected with the manual hydraulic pump through oil pipes.
The dismounting device for the hydraulic end gland is characterized in that the inner wall of a lead screw through hole of the pump head fixing cover is a smooth inner wall, and the diameter of the lead screw through hole of the pump head fixing cover is equal to that of the lead screw.
The dismounting device for the hydraulic end pressing cover is characterized in that the pump head fixing cover comprises a pump head connecting block and a supporting block, and the pump head connecting block is fixedly connected with the supporting block.
A dismounting device for hydraulic end gland, wherein, the pump head connecting block with the gland link end of lead screw is adjacent, the pump head connecting block with the surface that the lead screw is parallel to each other is equipped with the pump head screw thread, the screw thread phase-match of fixed pressure cap in pump head screw thread and the hydraulic end assembly, the fixed lid of pump head passes through the screw thread department of fixed pressure cap in the hydraulic end assembly of pump head screw thread fixation.
The dismounting device for the hydraulic end gland is characterized in that a piston rod groove is formed in one surface, opposite to the self-jacking oil cylinder, of the supporting block, and the diameter of the piston rod groove is larger than or equal to that of the piston rod.
The dismounting device for the hydraulic end gland is characterized in that the inner wall of a lead screw through hole of the self-jacking oil cylinder is a smooth inner wall, and the diameter of the lead screw through hole of the self-jacking oil cylinder is equal to that of the lead screw.
The dismounting device for the hydraulic end gland is characterized in that the self-jacking oil cylinder comprises a piston rod, a cylinder cover and a cylinder barrel,
the piston rod is arranged in the cylinder barrel, a sealing piece is arranged at the position where the piston rod is contacted with the inner wall of the cylinder barrel, the space in the cylinder barrel is divided into two parts by the piston rod, and two oil holes of the self-jacking oil cylinder are respectively positioned on the side walls of the cylinder barrel corresponding to the two spaces of the cylinder barrel;
the cylinder cover is fixed on the cylinder barrel at one end of the piston rod which does reciprocating motion, so that the piston rod divides the interior of the cylinder barrel into two spaces which are closed spaces.
The dismounting device for the hydraulic end gland is characterized in that threads matched with the threads on the surface of the lead screw are arranged on the inner wall of a lead screw hole of the adjusting screw cap, and the adjusting screw cap is adjusted to be in relative position with the lead screw through the threads on the inner wall of the lead screw hole.
The dismounting device for the hydraulic end gland is characterized in that the diameters of the oil eye, the oil pipe and an oil pipe connecting port of the manual hydraulic pump are equal.
(III) the beneficial effects are as follows: the dismounting device for the hydraulic end gland provided by the invention avoids the damage of other parts caused by violence taking out the gland, and simultaneously can quickly take out the damaged gland, so that the gland replacement efficiency is improved, and the working efficiency of the hydraulic end assembly of the fracturing pump is further ensured.
Drawings
FIG. 1 is a longitudinal cutting structure diagram of the dismounting device for a hydraulic end gland of the present invention;
100-lead screw; 101-gland connection end; 200-self-jacking oil cylinder; 201-oil eye; 202-a piston rod; 203-a cylinder barrel; 300-a pump head securing cover; 301-pump head connecting block; 302-a support block; 3021-piston rod groove; 400-adjusting the screw cap.
Detailed Description
The present invention will be described in further detail with reference to preferred embodiments, and more details are set forth in the following description in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from the description herein and can be similarly generalized and deduced by those skilled in the art based on the practical application without departing from the spirit of the present invention, and therefore, the scope of the present invention should not be limited by the contents of this detailed embodiment.
The drawings are schematic representations of embodiments of the invention, and it is noted that the drawings are intended only as examples and are not drawn to scale and should not be construed as limiting the true scope of the invention.
A dismounting device for a hydraulic end gland is used for dismounting the gland in a hydraulic end assembly of a fracturing pump and comprises a lead screw 100, a self-jacking oil cylinder 200, a pump head fixing cover 300, an adjusting screw cap 400 and a manual hydraulic pump.
The lead screw 100 is cylindrical, and the side surface of the cylinder is provided with spiral threads.
The central shafts of the pump head fixing cover 300, the self-jacking oil cylinder 200 and the adjusting screw cover 400 are respectively provided with a lead screw through hole.
One end of the screw rod 100 is a gland connecting end 100 which is provided with a gland thread matched with the thread in the gland hole.
The lead screw 100 sequentially penetrates through the lead screw through holes of the pump head fixing cover 300, the self-jacking oil cylinder 200 and the adjusting screw cap 400, so that the pump head fixing cover 300, the self-jacking oil cylinder 200 and the adjusting screw cap 400 are sequentially arranged on the lead screw 100 from near to far away from the gland connecting end 101 of the lead screw 100.
The gland connecting end 101 of the lead screw 100 is connected with an opening in the center of the gland, and one end, close to the gland connecting end 101 of the lead screw 100, of the pump head fixing cover 300 is connected with the pump head of the hydraulic end assembly.
Two ends of the cylinder barrel 203 of the self-jacking oil cylinder 200, which are arranged on the side wall of the lead screw 100, are respectively provided with an oil hole 201, and the two oil holes 201 are connected with the manual hydraulic pump through oil pipes.
The inner wall of the lead screw hole of the pump head fixing cover 300 is a smooth inner wall, and the diameter of the lead screw hole of the pump head fixing cover 300 is equal to the diameter of the lead screw 100. The inner wall of a lead screw through hole of the self-jacking oil cylinder 200 is a smooth inner wall, and the diameter of the lead screw through hole of the self-jacking oil cylinder 200 is equal to that of the lead screw 100. The inner wall of the lead screw through hole of the adjusting screw cap 400 is provided with threads matched with the threads on the surface of the lead screw 100, and the adjusting screw cap 400 adjusts the relative position with the lead screw 100 through the threads on the inner wall of the lead screw through hole.
The pump head fixing cover 300 comprises a pump head connecting block 301 and a supporting block 302, wherein the pump head connecting block 301 is fixedly connected with the supporting block 302, namely, the pump head connecting block 301 and the supporting block 302 are integrally arranged. The area of the pump head connecting block 301 perpendicular to the surface of the screw rod 100 is smaller than the area of the supporting block 302 perpendicular to the surface of the screw rod 100.
The pump head connecting block 301 with the gland connection end 101 of lead screw 100 is adjacent, the pump head connecting block 301 with the surface that lead screw 100 is parallel to each other is equipped with the pump head screw thread, the screw thread phase-match of fixed pressure cap in pump head screw thread and the fluid end assembly, the fixed lid 300 of pump head passes through the screw thread department of fixed pressure cap in the fluid end assembly is fixed to the pump head screw thread.
A piston rod groove 3021 is formed in one surface, opposite to the self-jacking oil cylinder 200, of the supporting block 302, and the diameter of the piston rod groove 3021 is larger than or equal to that of the piston rod 202.
The self-jacking oil cylinder 200 comprises a piston rod 202, a cylinder cover and a cylinder barrel 203. The piston rod 202 is arranged in the cylinder barrel 203, a sealing element is arranged at a position where the piston rod 202 is in contact with the inner wall of the cylinder barrel 203, the piston rod 202 divides the space in the cylinder barrel 203 into two parts, and the two oil holes 201 of the self-jacking oil cylinder 200 are respectively positioned on the side walls of the cylinder barrel corresponding to the two spaces of the cylinder barrel 202.
The cylinder cover is fixed on the cylinder 203 at one end of the piston rod 202 which reciprocates, so that the piston rod 202 divides the cylinder 203 into two spaces which are closed spaces.
The diameters of the oil holes 201, the oil pipe and the oil pipe connecting port of the manual hydraulic pump are equal, so that the two oil holes 201 are connected with the manual hydraulic pump through the oil pipe. The manual oil pump may be an existing oil pump available on the market, such as a top engine manual hydraulic pump with a product number of 86188159, or other types of products, and is not limited herein. Therefore, the manual hydraulic pump will not be described in detail herein.
When the dismounting device is used for dismounting the gland in the hydraulic end assembly of the fracturing pump, the gland connecting end 101 of the lead screw 100 is connected with the center of the gland cover thread through the gland thread, the pump head connecting block 301 in the pump head fixing cover 300 is connected with the thread of the fixed pressing cap of the hydraulic end assembly of the fracturing pump through the pump head thread, and therefore the pump head fixing cover 300 is fixed on the pump head body of the hydraulic end assembly of the fracturing pump.
Then, the adjusting screw cap 400 is adjusted according to the position of the self-jacking oil cylinder 200, so that the distance between the cylinder 202 and the pump head fixing cap 300 under the action of the adjusting screw cap 400 of the self-jacking oil cylinder 200 is smaller than the length of the maximum extension of the piston rod 202 out of the cylinder 202.
After the adjusting screw cap 400 is adjusted and fixed, an operator manually operates the manual hydraulic pump to inject oil into the closed space of the cylinder 203 far away from one end of the gland connecting end 101, at the moment, the length of the piston rod 202 protruding out of the cylinder 203 is increased until the piston rod 202 is completely contacted with the piston rod groove 3021 of the supporting block 302, the operator continues to operate the manual hydraulic pump, the oil is continuously injected into the closed space of the cylinder 203 far away from one end of the gland connecting end 101, at the moment, under the pushing action of the piston rod 202 on the pump head fixing cap 300, the screw rod moves in the direction far away from the pump head fixing cap 300, so that the gland is taken down from a fixed position, namely, the gland is separated from the position of the pump head fixing cap.
At this time, the operator screws the pump head fixing cap 300 out of the pump head body of the fracturing pump hydraulic end assembly, then takes out the screw rod 100 and the gland to be removed, which is connected with the screw rod 100, and screws the gland to be removed out of the gland connecting end 101 of the screw rod 100, thereby completing the removal of the gland.
A dismounting device for hydraulic end gland has avoided violently taking out the gland and has caused the damage of other parts, and the gland that takes out the damage that simultaneously can be swift has improved the efficiency of gland replacement, and then has guaranteed the work efficiency of fracturing pump hydraulic end assembly.
The above description is provided for the purpose of illustrating the preferred embodiments of the present invention and will assist those skilled in the art in more fully understanding the technical solutions of the present invention. However, these examples are merely illustrative, and the embodiments of the present invention are not to be considered as being limited to the description of these examples. For those skilled in the art to which the invention pertains, several simple deductions and changes can be made without departing from the inventive concept, and all should be considered as falling within the protection scope of the invention.
Claims (9)
1. The dismounting device for the hydraulic end gland is used for dismounting the gland in the hydraulic end assembly of the fracturing pump and is characterized by comprising a lead screw, a self-jacking oil cylinder, a pump head fixing cover, an adjusting screw cap and a manual hydraulic pump,
the central shafts of the pump head fixing cover, the self-jacking oil cylinder and the adjusting screw cap are respectively provided with a lead screw through hole;
one end of the screw rod is a gland connecting end and is provided with gland threads matched with the threads in the gland opening, and the screw rod sequentially passes through the pump head fixing cover, the self-jacking oil cylinder and the screw rod through hole of the adjusting screw cap, so that the pump head fixing cover, the self-jacking oil cylinder and the adjusting screw cap are sequentially arranged on the screw rod from near to far away from the gland connecting end of the screw rod;
the gland connecting end of the lead screw is connected with an opening in the center of the gland, and one end, close to the gland connecting end of the lead screw, of the pump head fixing cover is connected with the pump head of the hydraulic end assembly;
and oil holes are respectively formed in the two ends of the cylinder barrel of the self-jacking oil cylinder, which are arranged on the side wall in the direction of the lead screw, and the oil holes are connected with the manual hydraulic pump through oil pipes.
2. The dismounting device for a hydraulic end gland according to claim 1, wherein the inner wall of the screw hole of the pump head fixing cover is a smooth inner wall, and the diameter of the screw hole of the pump head fixing cover is equal to the diameter of the screw.
3. The removing device for a fluid end gland according to claim 2, wherein said pump head fixing cover comprises a pump head connecting block and a supporting block, said pump head connecting block being fixedly connected with said supporting block.
4. The dismounting device for the fluid end gland according to claim 3, wherein the pump head connecting block is adjacent to the gland connecting end of the screw rod, the parallel surfaces of the pump head connecting block and the screw rod are provided with pump head threads, the pump head threads are matched with the threads of the fixed gland cap in the fluid end assembly, and the pump head fixed cover is fixed at the threads of the fixed gland cap in the fluid end assembly through the pump head threads.
5. The dismounting device for the hydraulic end gland according to claim 3, wherein a piston rod groove is formed on the surface of the supporting block opposite to the self-jacking oil cylinder, and the diameter of the piston rod groove is larger than or equal to that of the piston rod.
6. The dismounting device for the hydraulic end gland according to claim 1, wherein the inner wall of the lead screw through hole of the self-jacking oil cylinder is a smooth inner wall, and the diameter of the lead screw through hole of the self-jacking oil cylinder is equal to that of the lead screw.
7. The dismounting device for the hydraulic end gland according to claim 6, wherein the self-jacking oil cylinder comprises a piston rod, a cylinder cover and a cylinder barrel,
the piston rod is arranged in the cylinder barrel, a sealing element is arranged at the position where the piston rod is contacted with the inner wall of the cylinder barrel, the piston rod divides the space in the cylinder barrel into two parts, and two oil holes of the self-jacking oil cylinder are respectively positioned on the side walls of the cylinder barrel corresponding to the two spaces of the cylinder barrel;
the cylinder cover is fixed on the cylinder barrel at one end of the piston rod which does reciprocating motion, so that the piston rod divides the interior of the cylinder barrel into two spaces which are closed spaces.
8. The dismounting device for the hydraulic end gland according to claim 1, wherein the screw through hole inner wall of the adjusting screw cap is provided with a thread matched with the thread on the surface of the screw, and the adjusting screw cap adjusts the relative position with the screw through hole inner wall thread.
9. The dismounting device for the hydraulic end gland according to claim 1, wherein the diameters of the oil eye, the oil pipe and an oil pipe connecting port of the manual hydraulic pump are all equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220814329.1U CN217167352U (en) | 2022-04-08 | 2022-04-08 | Dismounting device for hydraulic end gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220814329.1U CN217167352U (en) | 2022-04-08 | 2022-04-08 | Dismounting device for hydraulic end gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217167352U true CN217167352U (en) | 2022-08-12 |
Family
ID=82709627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220814329.1U Active CN217167352U (en) | 2022-04-08 | 2022-04-08 | Dismounting device for hydraulic end gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217167352U (en) |
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2022
- 2022-04-08 CN CN202220814329.1U patent/CN217167352U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Disassembly device for hydraulic end cover Granted publication date: 20220812 Pledgee: Bank of China Limited Xingtai Branch Pledgor: Julu Xinda Machinery Manufacturing Co.,Ltd. Registration number: Y2024980015520 |