CN212690438U - Anti-loosening sealing gland for high-pressure pump - Google Patents
Anti-loosening sealing gland for high-pressure pump Download PDFInfo
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- CN212690438U CN212690438U CN202021295680.1U CN202021295680U CN212690438U CN 212690438 U CN212690438 U CN 212690438U CN 202021295680 U CN202021295680 U CN 202021295680U CN 212690438 U CN212690438 U CN 212690438U
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- packing
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Abstract
A locking seal gland for a high-pressure pump belongs to the technical field of high-pressure pump sealing and comprises a packing box, wherein a step hole is formed in the packing box, a first groove is formed in the inner surface of a large-diameter hole of the step hole, a packing gland is coaxially sleeved in the large-diameter hole of the step hole, a second groove is formed in the outer surface of a small-diameter section of the packing gland, the second groove and the first groove form a locking groove in a surrounding mode, and a locking ring is clamped in the locking groove; the end face of the large-diameter hole section on the stuffing box is provided with a plurality of first fixing holes and a plurality of locking grooves; a third groove is formed in the end face, opposite to the stuffing box, of the stuffing gland, and the third groove is internally connected with an anti-loosening fixing pin; the end face of the large-diameter section of the packing gland is provided with a plurality of second fixing holes, each second fixing hole is internally provided with a double-end stud, and a nylon locknut and a lockwasher are sleeved on each double-end stud. Through the setting of locking groove and locking fixed pin, effectively solved gland and used the easy not hard up problem for a long time.
Description
Technical Field
The utility model relates to a high-pressure pump seals technical field, concretely relates to locking gland that moves for high-pressure pump.
Background
With the development of industrial technology and sealing technology, the pump is widely used in various industries such as electric power, chemical industry, petroleum and the like, and the requirements on the sealing property and the reliability of the pump are higher and tighter, especially the requirements on a high-pressure pump. The high-pressure pump is a device for providing high-pressure power for high-pressure rotary spraying cement slurry, is used for strengthening and reinforcing foundations of buildings, roads and the like, and can also be used for assisting in breaking rock and breaking coal by using high-pressure water jet, supplying liquid by using an underground hydraulic support, anchoring a water conservancy expansion metal anchor rod to pump high-pressure water, dredging and cleaning underground large-scale pipelines and the like.
In the working process of the high-pressure pump, the corresponding port needs to be sealed through the packing type sealing gland, and along with the increase of working time, the sealing gland is easy to loosen when the pressure is higher, so that the sealing effect is reduced, and the maintenance workload and the maintenance cost are increased.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned shortcoming that prior art exists, the utility model discloses a locking gland that moves for high-pressure pump has effectively solved gland and has used the back for a long time because of the easy not hard up problem of pressure is too high, has improved the leakproofness, has prolonged life.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a locking gland that moves for high-pressure pump, includes the stuffing box, be equipped with the step hole in the stuffing box, be equipped with recess one on the internal surface in the big diameter hole in step hole, the downthehole coaxial cover of major diameter in step hole is equipped with gland, gland establishes to the echelonment, be equipped with recess two on gland's the surface of minor diameter section, recess two with recess one encloses into the locking groove, locking inslot joint has the locking ring.
Be equipped with a plurality of fixed orificess one and a plurality of locking grooves that are annular evenly distributed respectively on the terminal surface of the major diameter hole section of gland, be equipped with a plurality of fixed orificess two that are annular evenly distributed on the terminal surface of the major diameter section of gland, every all be equipped with stud in the fixed orifices two, stud's one end is passed fixed orifices one is connected fixed orifices two, stud's another pot head is equipped with lock washer and nylon lock nut.
The end face, opposite to the stuffing box, of the stuffing gland is provided with a third groove, the three grooves are internally threaded with locking fixing pins, the end parts of the locking fixing pins are arranged into a trapezoidal body, and a locking sleeve is sleeved on the outer surface of the trapezoidal body and matched with the locking groove.
Preferably, a step surface is further arranged in the step hole, and a plurality of packing rings are compressed between the end surface of the small-diameter section of the packing gland and the step surface.
Preferably, the number of the third grooves is multiple, and the multiple third grooves are uniformly distributed on the large-diameter section of the packing gland in an annular manner.
Preferably, the number of the first fixing holes and the number of the second fixing holes are four.
The utility model has the advantages of that: the utility model discloses a double-end stud connects packing box and packing pressure disk, increases nylon locknut and lock washer in the junction to increase recess one on the inner wall of packing box, recess one and recess two enclose into the locking groove, in order to ensure that packing box and gland are connected firmly, have solved the easy not hard up problem of gland after long-term use because of too big pressure; through increase locking fixed pin on the relative terminal surface of gland and packing clamp plate, make gland and gland's connection more firm, effectively improved sealed effect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is the utility model relates to a high pressure pump is with locking gland's of moving front view schematic diagram.
Fig. 2 is a schematic view of a cross-sectional view a-a of the anti-loosening gland for a high-pressure pump of the present invention.
Fig. 3 is the utility model relates to a high pressure pump is with locking gland's B enlarger that moves.
In the figure: 1-packing box, 2-step surface, 3-groove I, 4-fixing hole I, 5-locking groove, 6-packing gland, 7-packing ring, 8-groove II, 9-anti-loosening ring, 10-fixing hole II, 11-double-end stud, 12-nylon locknut, 13-lockwasher, 14-groove III, 15-anti-loosening fixing pin and 16-locking sleeve.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings.
As shown in fig. 1-3, the utility model discloses a packing box 1 is equipped with the step hole in the packing box 1, be equipped with recess one 3 on the internal surface in the big diameter hole in step hole, the downthehole coaxial cover of major diameter in step hole is equipped with gland 6, gland 6 establishes to the echelonment, be equipped with recess two 8 on the surface of gland 6's minor diameter section, recess two 8 and recess one 3 enclose into the locking groove, the locking inslot joint has locking ring 9, be used for spacing gland 6, prevent to cause gland's not hard up because of pressure is too big. Preferably, the locking groove 5 is arranged outside the first fixing hole 4 to facilitate better locking.
And a step surface 2 is further arranged in the step hole, and a plurality of packing rings 7 are compressed between the end surface of the small-diameter section of the packing gland 6 and the step surface 2 and are used for improving the sealing performance of the sealing gland.
Be equipped with a plurality of fixed orificess one 4 and a plurality of locking groove 5 that are annular evenly distributed respectively on the terminal surface of the major diameter hole section of gland 1, be equipped with a plurality of fixed orificess two 10 that are annular evenly distributed on the terminal surface of the major diameter section of gland 6, all be equipped with stud 11 in every fixed orifices two 10, stud 11's one end is passed fixed orifices one 4 and is connected fixed orifices two 10, stud 11's another pot head is equipped with lock washer 13 and nylon lock nut 12. So as to ensure that the stuffing box 1 is stably connected with the stuffing gland 6 and prevent the stuffing gland 6 from loosening when the pressure is too high. The number of the first fixing holes 4 and the second fixing holes 10 is preferably four, so that better fastening and anti-loosening effects are achieved.
Be equipped with three 14 recesses on gland 6 for the terminal surface of stuffing box 1, the quantity of three 14 recesses is established to a plurality ofly, and a plurality of three 14 recesses are the annular evenly distributed at gland 6's major diameter section to it is firm to do benefit to gland 6 and stuffing box 1's connection.
The third groove 14 is internally threaded with a locking fixing pin 15, the end of the locking fixing pin 15 is designed into a trapezoidal body, the outer surface of the trapezoidal body is sleeved with a locking sleeve 16, and the locking sleeve 16 is matched with the locking groove 5. So as to ensure the tightness of the connection and prevent the loosening of the sealing gland.
When in use, the anti-loose ring 9 is firstly clamped in the second groove 8, and the anti-loose fixing pin 15 is screwed in the third groove 14 on the packing gland 6; then slowly placing the packing gland 6 into the step hole of the packing box 1, clamping the anti-loosening ring 9 in the first groove 3, and clamping the anti-loosening fixing pin 15 into the locking groove 5; and finally, adjusting the position to enable the assembly to be proper, wherein one end of the stud 11 penetrates through the second fixing hole 10 to the first fixing hole 4, the other end of the stud 11 is provided with a check washer 13, and a nylon check nut 12 is screwed down to achieve the fastening effect.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (4)
1. The anti-loosening sealing gland for the high-pressure pump comprises a packing box and is characterized in that a step hole is formed in the packing box, a first groove is formed in the inner surface of a large-diameter hole of the step hole, a packing gland is coaxially sleeved in the large-diameter hole of the step hole and is designed to be in a step shape, a second groove is formed in the outer surface of a small-diameter section of the packing gland, the second groove and the first groove form an anti-loosening groove in a surrounding mode, and an anti-loosening ring is clamped in the anti-loosening groove;
the end face of the large-diameter hole section of the packing box is provided with a plurality of first fixing holes and a plurality of locking grooves which are uniformly distributed in an annular shape, the end face of the large-diameter section of the packing gland is provided with a plurality of second fixing holes which are uniformly distributed in an annular shape, each second fixing hole is internally provided with a stud, one end of each stud penetrates through the first fixing hole and is connected with the second fixing hole, and the other end of each stud is sleeved with a check washer and a nylon check nut;
the end face, opposite to the stuffing box, of the stuffing gland is provided with a third groove, the three grooves are internally threaded with locking fixing pins, the end parts of the locking fixing pins are arranged into a trapezoidal body, and a locking sleeve is sleeved on the outer surface of the trapezoidal body and matched with the locking groove.
2. The anti-loosening sealing gland for the high-pressure pump according to claim 1, wherein a step surface is further arranged in the step hole, and a plurality of packing rings are compressed between the end surface of the small-diameter section of the packing gland and the step surface.
3. The anti-loosening gland bush for the high-pressure pump according to claim 1, wherein the number of the third grooves is multiple, and the multiple third grooves are uniformly distributed in an annular shape in the large-diameter section of the gland bush.
4. The anti-loosening gland for a high-pressure pump according to claim 1, wherein the number of the first fixing hole and the second fixing hole is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021295680.1U CN212690438U (en) | 2020-07-03 | 2020-07-03 | Anti-loosening sealing gland for high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021295680.1U CN212690438U (en) | 2020-07-03 | 2020-07-03 | Anti-loosening sealing gland for high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212690438U true CN212690438U (en) | 2021-03-12 |
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ID=74895927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021295680.1U Active CN212690438U (en) | 2020-07-03 | 2020-07-03 | Anti-loosening sealing gland for high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212690438U (en) |
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2020
- 2020-07-03 CN CN202021295680.1U patent/CN212690438U/en active Active
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