CN213392623U - High-pressure plunger pump stuffing box structure - Google Patents
High-pressure plunger pump stuffing box structure Download PDFInfo
- Publication number
- CN213392623U CN213392623U CN202021878084.6U CN202021878084U CN213392623U CN 213392623 U CN213392623 U CN 213392623U CN 202021878084 U CN202021878084 U CN 202021878084U CN 213392623 U CN213392623 U CN 213392623U
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- China
- Prior art keywords
- shoulder hole
- stuffing box
- plunger
- elastic component
- box structure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000012856 packing Methods 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 18
- 239000000498 cooling water Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 8
- 238000003825 pressing Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 125000002837 carbocyclic group Chemical group 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a high pressure plunger pump stuffing box structure, pack and the water seal including packing box body, plunger, elastic component, combination, still including the lock mother, be equipped with on the packing box body and hold the shoulder hole that the diameter reduces from power to hydraulic pressure one by one, the plunger is coaxial to be worn to locate in the shoulder hole, from minor diameter end to major diameter end in the shoulder hole install in proper order that the cover is established at the outside elastic component of plunger, combination packing and water seal, the tip that the combination is packed and is close to the elastic component is equipped with the clamping ring, the shoulder hole is held through the female fastening of lock at the major diameter, makes the elastic component compression and shore between the step face of clamping ring and shoulder hole that the combination packed the setting. The utility model discloses a high-pressure plunger pump stuffing box structure has advantages such as simple and practical, easily assembly, sealed effectual and long service life.
Description
Technical Field
The utility model relates to a high-pressure fluid equipment technical field especially relates to a high-pressure plunger pump stuffing box structure.
Background
The reliability and the service life of a sealing element of a high-pressure plunger pump are always the bottleneck limiting the development and popularization of high-pressure water jet complete equipment, and the key influencing the sealing performance of the sealing element lies in the internal structure of a packing box. The high-pressure sealing end of the assembling structure is difficult to assemble a compression spring, the sealing ring between the spacer bush and the packing box is also difficult to assemble, the sealing effect is poor, in addition, the axial support ring of the plunger is few and short in distance, the plunger is easy to jump, the problems that the cooling effect of the combined packing is poor and the like exist, the assembling structure greatly influences the sealing effect of the hydraulic end, and the problems that the service life of a sealing part is short, the overhaul time is long, the production efficiency is low and the like exist.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a simple and practical, easily assembly, sealed effectual and long service life's high-pressure plunger pump stuffing box structure.
In order to solve the technical problem, the utility model provides a technical scheme does:
the utility model provides a high pressure plunger pump stuffing box structure, includes stuffing box body, plunger, elastic component, combination filler and water seal, still includes the lock mother, be equipped with on the stuffing box body from the power end to the shoulder hole that hydraulic end diameter reduces one by one, the plunger is coaxial to be worn to locate in the shoulder hole, from minor diameter end to major diameter end in the shoulder hole install in proper order to establish the elastic component, combination filler and the water seal of establishing at the plunger outside, the combination filler is close to the tip of elastic component and is equipped with the clamping ring, the shoulder hole is held through the lock mother fastening at the major diameter, makes the elastic component compression and the shore between the step face of clamping ring and shoulder hole that the combination filler set up.
As a further improvement of the above technical solution:
the packing box body is provided with a cooling water inlet and a cooling water outlet corresponding to the water seal, the water seal is provided with a cooling cavity for containing cooling water, and the cooling cavity is communicated with the cooling water inlet and the cooling water outlet.
The inner surface of the water seal is provided with a groove, and a water seal ring matched with the plunger is arranged in the groove.
The internal surface of clamping ring is seted up slottedly, is equipped with first carbocycle in the inslot, and first carbocycle and clamping ring shore between shoulder hole and plunger.
The end part of the lock nut is provided with an external thread, the large-diameter end of the stepped hole is provided with an internal thread, and the external thread and the internal thread are in threaded fit connection.
The inner surface of the lock nut is provided with a groove, a second carbon ring is arranged in the groove, and the second carbon ring and the lock nut are supported between the stepped hole and the plunger piston.
And the end part of the packing box body is provided with a sealing ring which is matched and sealed with the spacer bush.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a high pressure plunger pump stuffing box structure is equipped with the shoulder hole that reduces from one end to other end diameter one by one on the stuffing box body, when assembling, in proper order to the shoulder hole in equipment elastic component, combination filler and water seal, wherein the tip that the combination filler is close to the elastic component is equipped with the clamping ring, the shoulder hole is held through locking female the fastening at the major diameter, makes the elastic component compression and shore between the rank face of the clamping ring that the combination filler set up and shoulder hole. Compare in assembling respectively from the both ends of stuffing box, this kind of mode of setting all uses the step face of shoulder hole as the benchmark at all parts of assembly process, and the uniformity is good, is convenient for hold the position of each part, and the assembly precision is higher, and just in this kind of assembly method, the elastic component packs into earlier in the shoulder hole and the top tightly on the step face of shoulder hole, subsequent combination packing, water seal and lock mother compress tightly the elastic component installation one by one can, greatly reduced the installation degree of difficulty of elastic component. In addition, each part is restricted through the step face to packing box body one end, and each part is restricted through the lock nut to the other end, and consequently the internals is in the state that the position is fixed completely, makes the wholeness of packing box structure stronger, and is more convenient when carrying out the dismouting on the spacer, can directly set up the sealing washer at the tip and seal, and sealed respond well, the cycle of extension maintenance has improved production efficiency.
Drawings
Fig. 1 is the schematic diagram of the stuffing box structure of the high-pressure plunger pump of the present invention.
Illustration of the drawings: 1. a stuffing box body; 11. a stepped hole; 12. a cooling water inlet and outlet; 13. a seal ring; 2. a plunger; 3. an elastic member; 4. combining fillers; 41. pressing a ring; 411. a first carbocyclic ring; 5. water sealing; 51. a cooling chamber; 52. a water seal ring; 6. locking a nut; 61. a second carbocyclic ring; 7. and (4) a spacer bush.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Example (b):
as shown in fig. 1, the high-pressure plunger pump stuffing box structure of the embodiment includes a stuffing box body 1, a plunger 2, an elastic member 3, a combined stuffing 4 and a water seal 5, and further includes a locking nut 6, a stepped hole 11 whose diameter gradually decreases from one end to the other end is arranged on the stuffing box body 1, the plunger 2 coaxially penetrates through the stepped hole 11, the elastic member 3 sleeved outside the plunger 2, the combined stuffing 4 and the water seal 5 are sequentially installed in the stepped hole 11 from a small diameter end to a large diameter end, a pressing ring 41 is arranged at an end portion of the combined stuffing 4 close to the elastic member 3, and the stepped hole 11 is fastened at the large diameter end through the locking nut 6, so that the elastic member 3 is compressed and supported between the pressing ring 41 arranged on the combined stuffing 4 and a step surface of the stepped hole 11.
Compare in assembling respectively from the both ends of stuffing box, all parts of this kind of mode of setting all use the step face of shoulder hole 11 as the benchmark in the assembling process, the uniformity is good, be convenient for hold the position of each part, the assembly precision is higher, and just in this kind of assembling mode, elastic component 3 packs into earlier in shoulder hole 11 and the top tightly on the step face of shoulder hole 11, subsequent combination is packed 4, water seal 5 and lock nut 6 compress tightly elastic component 3 installation one by one, greatly reduced elastic component 3's the installation degree of difficulty. Besides, 1 one end of the packing box body limits each part through the step surface, the other end limits each part through the lock nut 6, so that the internal part is in a completely fixed state, the integrity of the packing box structure is stronger, the pump head is more convenient to disassemble and assemble, the end part of the packing box body can be directly provided with the sealing ring 13 to seal with the spacer 7, the sealing effect is good, the maintenance period is prolonged, and the production efficiency is improved.
In addition, the combined packing 4 is provided with the pressing ring 41 at the end portion contacting with the elastic member 3, and the pressing ring 41 can ensure that the combined packing 4 is not crushed due to excessive elastic force, and the pressing force is uniformly distributed along the circumferential direction, thereby improving the stress performance of the combined packing 4. In this embodiment, the combined filler 4 is a V-shaped combined filler, and sequentially includes a V-shaped support ring, a V-shaped main seal ring, and a V-shaped pressure ring, and in other embodiments, fillers with other structures may also be used, which is not described herein.
In this embodiment, be equipped with on the packing box body 1 and import 12 with the cooling water that 5 positions of water seal correspond, be equipped with the cooling chamber 51 of holding cooling water on the water seal 5, cooling chamber 51 intercommunication cooling water is imported and exported 12, and the cooling water is imported and exported 12 through the cooling water and is stored in getting into cooling chamber 51, cools off combination filler 4 through the heat transfer, later by the discharge of cooling water import and export 12 again, because the distance is little between combination filler 4 and the water seal 5, therefore the heat transfer effect is better.
In this embodiment, the inner surface of the water seal 5 is provided with a groove, and a water seal ring 52 matched with the plunger 2 is arranged in the groove to ensure the sealing performance of the stuffing box. As shown in fig. 1, the water seal ring 52 is disposed at the outer end of the cooling chamber 51, and has a reasonable structure, so as to further ensure the sealing performance.
In this embodiment, the inner surface of the pressing ring 41 is provided with a groove, the groove is internally provided with a first carbon ring 411, and the first carbon ring 411 and the pressing ring 41 are supported between the stepped hole 11 and the plunger 2, so that the movement of the plunger 2 in the radial direction at the position is completely limited, and the plunger 2 is prevented from generating radial run-out during operation to influence the operation effect.
In this embodiment, the tip of lock nut 6 is equipped with the external screw thread, and the major diameter end of shoulder hole 11 is equipped with the internal thread, when fixing, the tip of lock nut 6 stretches into in shoulder hole 11 gradually along with the cooperation of screw thread, further compresses tightly elastic component 3, combination filler 4 and water seal 5, ensures that each part is along the ascending position stability of axial direction in the operation process.
In this embodiment, the inner surface of the lock nut 6 is provided with a groove, a second carbon ring 61 is arranged in the groove, and the second carbon ring 61 and the lock nut 6 are supported between the stepped hole 11 and the plunger 2. Likewise, the movement of the plunger 2 in the radial direction at the position is completely limited, and the radial jumping generated when the plunger 2 works is prevented, so that the working effect is influenced. And cooperates with the first carbon ring 411 to further limit the rotational freedom of the plunger 2 and enhance the anti-bounce effect.
In this embodiment, the end of the packing box body 1 is provided with a sealing ring 13 which is matched and sealed with the spacer 7. The opening of 1 tip of packing box body is less, allow plunger 2 to pass through can, this kind of setting mode is compared in tip opening wide mouth for sealing washer 13 is changeed and is fixed at same axial position, is difficult for removing at radial position and warp, has strengthened sealing washer 13's sealed effect, has prolonged sealing washer 13's life.
The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention should be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a high pressure plunger pump stuffing box structure, includes stuffing box body (1), plunger (2), elastic component (3), combination filler (4) and water seal (5), its characterized in that: still including locking female (6), be equipped with on the packing box body (1) from power end to hydraulic end shoulder hole (11) that the diameter reduces gradually, plunger (2) are coaxial to be worn to locate in shoulder hole (11), install in proper order from minor diameter end to major diameter end in shoulder hole (11) and establish elastic component (3), combination filler (4) and water seal (5) outside plunger (2), the tip that combination filler (4) are close to elastic component (3) is equipped with clamping ring (41), shoulder hole (11) are held through locking female (6) fastening at major diameter, make elastic component (3) compression and shore between the step face of clamping ring (41) and shoulder hole (11) that combination filler (4) set up.
2. The high pressure plunger pump stuffing box structure of claim 1, wherein: the packing box is characterized in that a cooling water inlet and outlet (12) corresponding to the position of the water seal (5) is formed in the packing box body (1), a cooling cavity (51) for containing cooling water is formed in the water seal (5), and the cooling cavity (51) is communicated with the cooling water inlet and outlet (12).
3. The high pressure plunger pump stuffing box structure of claim 1, wherein: the inner surface of the water seal (5) is provided with a groove, and a water seal ring (52) matched with the plunger (2) is arranged in the groove.
4. The high pressure plunger pump stuffing box structure of claim 1, wherein: the internal surface of clamping ring (41) is seted up slottedly, is equipped with first carbocycle (411) in the inslot, and first carbocycle (411) and clamping ring (41) shore between shoulder hole (11) and plunger (2).
5. The high pressure plunger pump stuffing box structure of claim 1, wherein: the end part of the lock nut (6) is provided with an external thread, the large-diameter end of the stepped hole (11) is provided with an internal thread, and the two are in threaded fit connection.
6. The high pressure plunger pump stuffing box structure of claim 5, wherein: the inner surface of the lock nut (6) is provided with a groove, a second carbon ring (61) is arranged in the groove, and the second carbon ring (61) and the lock nut (6) are supported between the stepped hole (11) and the plunger (2).
7. The high pressure plunger pump stuffing box structure of claim 1, wherein: and a sealing ring (13) which is matched and sealed with the spacer bush (7) is arranged at the end part of the packing box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878084.6U CN213392623U (en) | 2020-09-01 | 2020-09-01 | High-pressure plunger pump stuffing box structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878084.6U CN213392623U (en) | 2020-09-01 | 2020-09-01 | High-pressure plunger pump stuffing box structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213392623U true CN213392623U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021878084.6U Active CN213392623U (en) | 2020-09-01 | 2020-09-01 | High-pressure plunger pump stuffing box structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN213392623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405515A (en) * | 2022-08-31 | 2022-11-29 | 上海迈克孚生物科技有限公司 | Sealing combination structure of ultrahigh-pressure and high-frequency reciprocating plunger pump |
-
2020
- 2020-09-01 CN CN202021878084.6U patent/CN213392623U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405515A (en) * | 2022-08-31 | 2022-11-29 | 上海迈克孚生物科技有限公司 | Sealing combination structure of ultrahigh-pressure and high-frequency reciprocating plunger pump |
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