CN214330879U - Packing self-adjusting and conveniently-disassembled letter assembly for high-pressure large-flow plunger pump - Google Patents
Packing self-adjusting and conveniently-disassembled letter assembly for high-pressure large-flow plunger pump Download PDFInfo
- Publication number
- CN214330879U CN214330879U CN202120058768.XU CN202120058768U CN214330879U CN 214330879 U CN214330879 U CN 214330879U CN 202120058768 U CN202120058768 U CN 202120058768U CN 214330879 U CN214330879 U CN 214330879U
- Authority
- CN
- China
- Prior art keywords
- letter
- positioning
- sleeve
- positioning sleeve
- plunger pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a stuffing self-adjusting convenient disassembly and assembly letter body assembly for a high-pressure large-flow plunger pump, which is arranged on a machine body together with a cylinder body; the letter body assembly comprises a letter body and a positioning sleeve; the positioning sleeve is arranged between the cylinder body and the machine body, and the front end of the positioning sleeve penetrates through the machine body and the box body to be installed; a letter pressing plate is sleeved on the letter body; the letter pressing plate is used for pressing the letter to the front end of the positioning sleeve and is installed with the machine body and the cylinder body; a quick-change structure is further arranged between the box pressing plate and the positioning sleeve. The utility model discloses a packing self-adjustment is convenient for reassembling type letter body assembly for high pressure large-traffic plunger pump, increases the position sleeve between fuselage and cylinder body, reduces the length of letter body, makes things convenient for disassembling and installing of letter body assembly; the filler is automatically and accurately pre-tightened, so that the service life is prolonged; the letter body is quickly disassembled and assembled, so that the working efficiency is improved; the whole structure is simple, the processing and maintenance are convenient to modify, and the use is reliable.
Description
Technical Field
The utility model relates to a plunger pump design field especially relates to a large-traffic plunger pump of high pressure is with packing self-adjustment be convenient for reassembling type letter body assembly.
Background
The existing reciprocating plunger pump packing box assembly can play a role in normal work and is suitable for high-pressure small-displacement plunger pumps. However, under the working conditions of high pressure and large displacement, the following problems often occur:
1. the filler pre-tightening is controlled by manually adjusting the adjusting nut, and the high-voltage start and stop are realized, so that the downtime is increased, the labor intensity of workers is increased, and the working efficiency is reduced; the manual adjustment precision is not high, and the service life of wearing parts such as fillers is short; the threads of the adjusting nut and the box body are often bitten and cannot be disassembled.
2. When quick-wear parts such as a box body are replaced, parts such as a hydraulic end are often disassembled, and due to the fact that the field space is limited, the heavier hydraulic end is disassembled, the maintenance intensity and the workload of workers are increased, and meanwhile certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a filler self-adjusting convenient disassembly and assembly letter body assembly for a high-pressure large-flow plunger pump, wherein a positioning sleeve is added between a machine body and a cylinder body, so that the length of a letter body is reduced, and the disassembly and the assembly of the letter body assembly are convenient; the filler is automatically and accurately pre-tightened, so that the service life is prolonged; the letter body is quickly disassembled and assembled, so that the working efficiency is improved; the whole structure is simple, the processing and maintenance are convenient to modify, and the use is reliable.
The utility model provides a technical scheme that its technical problem adopted is: a packing self-adjusting convenient-to-dismount letter body assembly for a high-pressure large-flow plunger pump is mounted on a machine body together with a cylinder body; the letter body assembly comprises a letter body and a positioning sleeve; the positioning sleeve is arranged between the cylinder body and the machine body, and the front end of the positioning sleeve penetrates through the machine body and the box body to be installed; a letter pressing plate is sleeved on the letter body; the letter pressing plate is used for pressing the letter to the front end of the positioning sleeve and is installed with the machine body and the cylinder body; a quick-change structure is further arranged between the box pressing plate and the positioning sleeve.
The quick-change structure comprises a plurality of first positioning blocks which are arranged on the outer wall of the letter body close to the rear end and are distributed circumferentially, and a plurality of second positioning blocks which are arranged on the inner wall of the pressing plate of the letter body close to the front end and are distributed circumferentially; the second positioning block corresponds to the first positioning block and forms a front limit of the first positioning block; the interval between the adjacent second positioning blocks forms a channel for the first positioning block to move back and forth.
The machine body is provided with a mounting hole at the position where the positioning sleeve passes through; the rear end of the positioning sleeve is provided with a positioning sleeve rear flange; the front end surface of the rear flange of the positioning sleeve is matched with the machine body, and the rear end surface of the rear flange of the positioning sleeve is matched with the cylinder body; and the rear end surface of the rear flange of the positioning sleeve is sealed with the cylinder body through a sealing element.
The cylinder body is connected with the machine body through a second bolt connecting piece; the front end face of the flange behind the positioning sleeve is tightly pressed with the machine body, and the rear end face of the flange behind the positioning sleeve is tightly pressed with the cylinder body.
The front end surface of the positioning sleeve is provided with a concave spigot; the rear end of the box body is arranged in the concave spigot of the positioning sleeve; the rear end surface of the box body is sealed with the inner end surface of the concave spigot through a sealing element; the length of the box body behind the first positioning block is larger than the depth of the concave spigot.
The box pressing plate is connected with the cylinder body through a first bolt connecting piece; the back end surface of the letter body is tightly pressed with the front end of the positioning sleeve; the machine body is provided with a through hole at the position where the first bolt connecting piece penetrates.
A plunger is arranged in the box body in a penetrating manner; the plunger is in clearance fit with the inner wall of the box body; the diameter of the inner hole of the positioning sleeve is larger than that of the plunger.
The inner hole of the box body is in a step shape; the inner part of the box body is provided with a large inner hole close to the front end and a small inner hole close to the rear end, and the large inner hole is provided with a self-adjusting packing component.
The self-adjusting packing component comprises a spring positioning rear sleeve, a pre-tightening spring, a spring positioning front sleeve, a V-shaped guide rear sleeve, a plurality of packing and a V-shaped guide front sleeve in sequence from back to front; a spacer ring is arranged between two adjacent fillers; the front end of the box body is also provided with a pressing flange; the rear end face of the spring positioning rear sleeve is tightly attached to a step face between the large inner hole and the small inner hole, the front end of the V-shaped guide front sleeve is tightly attached to the rear end face of the pressing flange, and the pre-tightening spring is in a compression state and used for providing pre-tightening force for the filler.
The pre-tightening springs are multiple and are uniformly distributed along the circumferential direction of the large inner hole of the box body; and the spring positioning rear sleeve and the spring positioning front sleeve are provided with spring mounting grooves at positions corresponding to each pre-tightening spring.
The utility model has the advantages that: the utility model discloses a packing self-adjustment is convenient for reassembling type letter body assembly for high pressure large-traffic plunger pump, increases the position sleeve between fuselage and cylinder body, reduces the length of letter body, makes things convenient for disassembling and installing of letter body assembly; the filler is automatically and accurately pre-tightened, so that the service life is prolonged; the letter body is quickly disassembled and assembled, so that the working efficiency is improved; the whole structure is simple, the processing and maintenance are convenient to modify, and the use is reliable.
Drawings
FIG. 1 is a schematic perspective view of a packing self-adjusting easy-to-mount/dismount box assembly for a high-pressure large-flow plunger pump according to an embodiment
FIG. 2 is a schematic front view of a packing self-adjusting easy-to-mount and dismount letter assembly, a cylinder body and a body for a high-pressure large-flow plunger pump according to an embodiment;
FIG. 3 is a schematic cross-sectional view of a portion of A-A of FIG. 2;
FIG. 4 is an enlarged partial view of the area B of FIG. 3;
FIG. 5 is a schematic perspective view of a casing of the high pressure high flow plunger pump with self-adjusting packing for easy assembly and disassembly of the casing assembly according to an embodiment;
FIG. 6 is a schematic perspective view of a casing press plate with packing self-adjusting for a high pressure, high flow plunger pump to facilitate disassembly and assembly of the casing assembly according to an embodiment;
FIG. 7 is a schematic view of the packing self-adjusting for high pressure high flow plunger pump facilitating the installation of the letter press plate of the knockdown letter assembly of the embodiment;
fig. 8 is a schematic perspective view of the positioning sleeve of the packing self-adjusting easy-to-mount and dismount letter assembly for the high-pressure high-flow plunger pump according to the embodiment.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.
Examples
Referring to fig. 1 to 8, in the present embodiment, a packing self-adjusting easy-to-mount and dismount box assembly for a high-pressure large-flow plunger pump is provided, and is mounted on a machine body 3 together with a cylinder body 1; the letter assembly comprises a letter body 4 and a positioning sleeve 2; the positioning sleeve 2 is arranged between the cylinder body 1 and the body 3, and the front end of the positioning sleeve 2 penetrates through the body 3 and the body 4 to be installed; a letter pressing plate 15 is sleeved on the letter body 4; the letter pressing plate 15 is used for pressing the letter 4 at the front end of the positioning sleeve 2 and is installed with the machine body 3 and the cylinder body 1; a quick-change structure is further arranged between the box body pressing plate 15 and the positioning sleeve 2.
Referring to fig. 5 to 7 again, the quick-change structure includes a plurality of first positioning blocks 19 disposed on the outer wall of the letter 4 near the rear end and distributed circumferentially, and a plurality of second positioning blocks 20 disposed on the inner wall of the letter pressing plate 15 near the front end and distributed circumferentially; the second positioning block 20 corresponds to the first positioning block 19 and forms a front limit of the first positioning block; the interval between the adjacent second positioning blocks 20 forms a channel for the first positioning block 19 to move back and forth; the second positioning blocks 20 are matched with the first positioning blocks 19, and are used for enabling the first positioning blocks 19 to correspond to the intervals of the two second positioning blocks 20 (as shown in the left drawing of fig. 7) by rotating the letter body 4, then moving the letter body backwards, enabling the first positioning blocks 19 to pass through the intervals backwards, then rotating the bearing body 4 to enable the first positioning blocks 19 to rotate to the positions behind the second positioning blocks 20 (as shown in the right drawing of fig. 7), further enabling the letter body 4 and the letter pressing plate 15 to be installed, and enabling the letter pressing plate 15 to form the front limit of the letter body 4; wherein, the first positioning block 19 of the letter body 4 can be designed with convex arc ribs, which is equivalent to the letter body 4 in a step-type design, namely, the peripheries of a plurality of arc ribs form a large excircle of the letter body, and the periphery of the letter body 4 forms a small excircle; a second positioning block on the inner wall of the box pressing plate is equivalent to a spigot, the inner periphery of the second positioning block forms a small inner hole of the box pressing plate, and the inner periphery of the box pressing plate forms a large inner hole; the interval between the adjacent second positioning blocks is equivalent to an arc through groove; the diameter of the large inner hole of the letter pressing plate is 1mm larger than that of the large outer circle of the letter, and the diameter of the small inner hole of the letter pressing plate is 0.5mm larger than that of the small outer circle of the letter, so that the convenience in installation and reliability of the letter are guaranteed; in this embodiment, as shown in fig. 5 and 7, the large outer circle of the letter body is 4 circular arc ribs; as shown in fig. 6 and 7, the number of the second positioning blocks of the letter press plate is 4, and the circumferential length of the second positioning blocks of the letter press plate is slightly larger than that of the arc ribs.
As shown in fig. 3 and 8, the body 3 is provided with a mounting hole at a position through which the positioning sleeve 2 passes; the rear end of the positioning sleeve 2 is provided with a positioning sleeve rear flange 22; the front end face of the locating sleeve rear flange 22 is matched with the machine body 3, and the rear end face of the locating sleeve rear flange 22 is matched with the cylinder body; the rear end surface of the positioning sleeve rear flange 22 is sealed with the cylinder body through a sealing element 17; the positioning sleeve 2 and the positioning sleeve rear flange 22 form a stepped design, and the excircle of the positioning sleeve 2 is in close clearance fit with the mounting hole of the machine body 3 to ensure the coaxiality of the positioning sleeve and the mounting hole; the front end face (step face) of the locating sleeve rear flange 22 is close to the rear end face of the machine body, the perpendicularity of the locating sleeve 2 and the machine body 3 is guaranteed, and the rear end face of the locating sleeve rear flange 22 is provided with an annular groove; the sealing element can be an annular cloth clamping pad and is embedded in the groove, so that the sealing reliability of the rear end face of the rear flange 22 of the positioning sleeve and the front end face of the cylinder body 1 is ensured; the cylinder body 1 is connected with the machine body 3 through a second bolt connecting piece 16; the front end surface of the positioning sleeve rear flange 22 is tightly pressed with the machine body 3, and the rear end surface of the positioning sleeve rear flange 22 is tightly pressed with the cylinder body 1.
As shown in fig. 3, 5 and 8, the front end surface of the positioning sleeve 2 is provided with a female spigot 21; the rear end of the box body 4 is arranged in the positioning sleeve concave spigot 21; the rear end surface of the box body is sealed with the inner end surface of the female spigot 21 through a sealing element 17; the length of the box body behind the first positioning block 19 is greater than the depth of the concave spigot; the female spigot 21 is actually a stepped inner hole, the inner hole of the positioning sleeve is a small-diameter hole of the stepped inner hole, and the female spigot 21 is a large-diameter hole of the stepped inner hole; the small-diameter hole of the positioning sleeve is 3-5mm larger than the diameter of a plunger piston which is described later; the end surface (step surface) of the large-diameter hole of the positioning sleeve and the length direction of the small-diameter hole of the positioning sleeve ensure the verticality; the rear end of the letter body 4 is in clearance fit with the large-diameter hole of the positioning sleeve to ensure the coaxiality of the same letter body and the positioning sleeve; the rear end face of the box body is also provided with an annular groove, and the sealing element can also be an annular cloth clamping pad embedded in the groove; the length of the letter body behind the first positioning block 19 is 1-2mm greater than the depth of the concave spigot, so that the sealing reliability of the positioning sleeve and the letter body can be ensured.
As shown in fig. 1, 2 and 7, the box pressing plate 15 is connected with the cylinder body 1 through a first bolt connecting piece 18; the back end surface of the letter body is tightly pressed with the front end of the positioning sleeve 2; a through hole is formed in the position, through which the first bolt connecting piece 18 passes, of the machine body 3; the position of the locating sleeve rear flange 22, through which the first bolt connecting piece 18 passes, is provided with a U-shaped through hole 23.
As shown in fig. 1 to 3, a plunger 12 is arranged in the box body 4; the plunger 12 is in clearance fit with the inner wall of the box body; the diameter of the inner hole of the positioning sleeve 2 is larger than that of the plunger 12.
As shown in fig. 3 and 4, the inner hole of the box body 4 is stepped; the inner part of the box body 4 is provided with a large inner hole close to the front end and a small inner hole close to the rear end, and the self-adjusting packing component is arranged in the large inner hole; the self-adjusting packing component comprises a spring positioning rear sleeve 5, a pre-tightening spring 6, a spring positioning front sleeve 7, a V-shaped guiding rear sleeve 8, a plurality of packing 9 and a V-shaped guiding front sleeve 11 in sequence from back to front; a spacer ring 10 is arranged between two adjacent fillers 9; the front end of the box body 4 is also provided with a compression flange 13, and the compression flange 13 is fixed on the front end surface of the box body 4 through a compression flange screw 14; the rear end face of the spring positioning rear sleeve 5 is abutted against a step face between the large inner hole and the small inner hole, the front end of the V-shaped guide front sleeve 11 is abutted against the rear end face of the pressing flange 13, and the pre-tightening spring 6 is in a compressed state and is used for providing pre-tightening force for the filler 9; the pre-tightening springs 6 are multiple and are uniformly distributed along the circumferential direction of the large inner hole of the box body 4; spring mounting grooves are formed in the positions, corresponding to each pre-tightening spring 6, of the spring positioning rear sleeve 5 and the spring positioning front sleeve 7; the excircle of the spring positioning rear sleeve 5, the spring positioning front sleeve 7, the V-shaped guiding rear sleeve 8 and the V-shaped guiding front sleeve 11 are in clearance fit with the large inner hole of the box body, and the excircle of the spring positioning rear sleeve 5, the spring positioning front sleeve 7, the V-shaped guiding rear sleeve 8 and the inner hole of the V-shaped guiding front sleeve 11 are in clearance fit with the plunger 12, so that the guidance of the plunger is ensured; the caliber of the spring mounting groove is 0.5mm larger than the outer diameter of the pre-tightening spring; the pre-tightening springs 6 are uniformly pressed by a rear front spring positioning sleeve, when the filler 9 needs to be pre-tightened, the pre-tightening springs 6 can automatically adjust the pressure, and the pre-tightening force of the filler 9 is ensured; the front end face of the spring positioning front sleeve 7 is tightly pressed with the rear end face of the V-shaped guide rear sleeve 8, the front end conical surface of the V-shaped guide rear sleeve and the rear end conical surface of the V-shaped guide sleeve are respectively tightly pressed with the end face of the filler 9, and the filler 9 is uniformly stressed during the pressing process, so that the sealing effect of the filler is optimal; the outer circle of the packing 9 is sealed with the large inner hole of the box body 4, and the inner hole of the packing 9 is in sealing fit with the plunger 12; the excircle of the spacer ring 10 is matched and installed with the large inner hole of the box body 4, and the inner hole of the spacer ring 10 is larger than the outer diameter of the plunger 12 by 0.5 mm; the end surface of the spacer ring 10 is close to the end surface of the filler 9, so that the supporting effect is achieved, and the service life of the filler is ensured; the hold-down flange 13 is also designed in a step mode and is provided with a small outer circle and a large outer circle, one end of the small outer circle is inserted into the front end of the large inner hole of the box body, and the rear end face of the large outer circle is close to the front end face of the box body and is fixedly connected with the box body through a hold-down flange screw 14; the rear end face of the small excircle of the compression flange 13 is in compression fit with the front end face of the V-shaped guide front sleeve 11; the inner hole of the pressing flange 13 is larger than the diameter of the plunger 12 by 3mm, so that the smooth reciprocating motion of the plunger is ensured.
According to the packing self-adjustment convenient-to-dismount letter assembly for the high-pressure large-flow plunger pump, the cylinder body 1, the positioning sleeve 2 and the machine body 3 are connected through the high-strength first bolt fastener and the high-strength second bolt fastener respectively; the positioning sleeve 2 and the cylinder body 1 are sealed through an annular cloth clamping pad, so that the sealing performance under high pressure is ensured; the front end of the positioning sleeve 2 is positioned and installed with the installation hole of the machine body 3, and the front end surface of the flange behind the positioning sleeve is vertically installed with the end surface of the machine body, so that the coaxiality and the verticality are ensured; the back end of the box body 4 is matched and arranged with the front end seam allowance of the positioning sleeve 2, and the box body and the positioning sleeve are sealed through an annular cloth clamping pad; the small excircle length at the rear end of the box body 4 is greater than the rabbet depth at the front end of the positioning sleeve 2, so that the annular cloth clamping pad 17 is guaranteed to be compressed; the big excircle of the box body 4 is designed by adopting circular arc ribs to form a first positioning block; the box pressing plate 15 is designed to be a cuboid, and 4 through holes are formed in the end face and used for mounting a first bolt fastener; during installation, the circular arc rib (a first positioning block) of the large excircle of the letter body 4 penetrates through the rabbet through groove (an interval between two second positioning blocks) of the letter body pressing plate 15, the letter body 4 is rotated by a certain angle, the rabbet end surface (the rear end surface of the second positioning block) of the letter body pressing plate 15 is ensured to be in complete contact with the front end surface (the front end surface of the first positioning block) of the circular arc rib of the letter body 4, and the letter body 4 and the letter body pressing plate 15 are tightly pressed together through the first bolt fastener 18; when the letter body 4 is disassembled, nuts of the first bolt fasteners 18 of the letter body pressing plate 15 are loosened, the letter body 4 is rotated reversely, the circular-arc ribs (the first positioning blocks) of the letter body 4 are rotated to correspond to the through grooves (the interval between the two second positioning blocks) of the letter body pressing plate 15, and the letter body 4 is pulled out forwards, so that the convenience and the rapidness are realized; the inner hole of the box body 4 is designed in a step mode, and the small inner hole at the rear end is larger than the diameter of the plunger; the big inner bore of front end installation plunger seal assembly: and sequentially installing a spring positioning rear sleeve 5, a plurality of pre-tightening springs 6, a spring positioning front sleeve 7 and a V-shaped guide rear sleeve 8 in the large inner hole of the letter body 4, then installing packing 9 and a spacer ring 10 at intervals, finally installing a V-shaped guide front sleeve 11 after installing the packing 9 at the foremost side, and installing a pressing flange 13, namely completing the installation of the letter body assembly.
According to the packing self-adjustment and easy-to-dismount box body assembly for the high-pressure large-flow plunger pump, the packing is automatically pre-tightened and adjusted through the pre-tightening springs, the service life of the packing is prolonged, and the replacement frequency of accessories is reduced; letter body and letter body clamp plate take the structure of quick change formula structrual installation, and convenient dismantlement and installation reduce intensity of labour, improve work efficiency, replace the screw thread installation through hold-down flange, convenient processing and the maintenance of being convenient for, overall structure is simple, processing dimension is modified conveniently, is used reliably.
The above-mentioned embodiments should not limit the present invention in any way, and all the technical solutions obtained by adopting equivalent replacement or equivalent conversion fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a big flow plunger pump of high pressure packs from adjustment be convenient for reassembling type letter body assembly which characterized in that: the cylinder body and the cylinder body are arranged on the machine body together; the letter body assembly comprises a letter body and a positioning sleeve; the positioning sleeve is arranged between the cylinder body and the machine body, and the front end of the positioning sleeve penetrates through the machine body and the box body to be installed; a letter pressing plate is sleeved on the letter body; the letter pressing plate is used for pressing the letter to the front end of the positioning sleeve and is installed with the machine body and the cylinder body; a quick-change structure is further arranged between the box pressing plate and the positioning sleeve.
2. The packing self-adjustment convenient-to-dismount box assembly for the high-pressure large-flow plunger pump according to claim 1, characterized in that: the quick-change structure comprises a plurality of first positioning blocks which are arranged on the outer wall of the letter body close to the rear end and are distributed circumferentially, and a plurality of second positioning blocks which are arranged on the inner wall of the pressing plate of the letter body close to the front end and are distributed circumferentially; the second positioning block corresponds to the first positioning block and forms a front limit of the first positioning block; the interval between the adjacent second positioning blocks forms a channel for the first positioning block to move back and forth.
3. The packing self-adjustment convenient-to-dismount box assembly for the high-pressure large-flow plunger pump according to claim 2, characterized in that: the machine body is provided with a mounting hole at the position where the positioning sleeve passes through; the rear end of the positioning sleeve is provided with a positioning sleeve rear flange; the front end surface of the rear flange of the positioning sleeve is matched with the machine body, and the rear end surface of the rear flange of the positioning sleeve is matched with the cylinder body; and the rear end surface of the rear flange of the positioning sleeve is sealed with the cylinder body through a sealing element.
4. The packing self-adjustment convenient-to-dismount box assembly for the high-pressure large-flow plunger pump according to claim 3, characterized in that: the cylinder body is connected with the machine body through a second bolt connecting piece; the front end face of the flange behind the positioning sleeve is tightly pressed with the machine body, and the rear end face of the flange behind the positioning sleeve is tightly pressed with the cylinder body.
5. The packing self-adjustment convenient-to-dismount box assembly for the high-pressure large-flow plunger pump according to claim 3, characterized in that: the front end surface of the positioning sleeve is provided with a concave spigot; the rear end of the box body is arranged in the concave spigot of the positioning sleeve; the rear end surface of the box body is sealed with the inner end surface of the concave spigot through a sealing element; the length of the box body behind the first positioning block is larger than the depth of the concave spigot.
6. The packing self-adjustment easy-to-dismount box assembly for the high-pressure high-flow plunger pump according to claim 5, characterized in that: the box pressing plate is connected with the cylinder body through a first bolt connecting piece; the back end surface of the letter body is tightly pressed with the front end of the positioning sleeve; the machine body is provided with a through hole at the position where the first bolt connecting piece penetrates.
7. The packing self-adjustment easy-to-dismount letter assembly for the high-pressure high-flow plunger pump according to any one of claims 1-6, characterized in that: a plunger is arranged in the box body in a penetrating manner; the plunger is in clearance fit with the inner wall of the box body; the diameter of the inner hole of the positioning sleeve is larger than that of the plunger.
8. The packing self-adjustment easy-to-dismount box assembly for the high-pressure high-flow plunger pump according to claim 7, characterized in that: the inner hole of the box body is in a step shape; the inner part of the box body is provided with a large inner hole close to the front end and a small inner hole close to the rear end, and the large inner hole is provided with a self-adjusting packing component.
9. The packing self-adjustment easy-to-dismount box assembly for the high-pressure high-flow plunger pump according to claim 8, wherein: the self-adjusting packing component comprises a spring positioning rear sleeve, a pre-tightening spring, a spring positioning front sleeve, a V-shaped guide rear sleeve, a plurality of packing and a V-shaped guide front sleeve in sequence from back to front; a spacer ring is arranged between two adjacent fillers; the front end of the box body is also provided with a pressing flange; the rear end face of the spring positioning rear sleeve is tightly attached to a step face between the large inner hole and the small inner hole, the front end of the V-shaped guide front sleeve is tightly attached to the rear end face of the pressing flange, and the pre-tightening spring is in a compression state and used for providing pre-tightening force for the filler.
10. The packing self-adjustment easy-to-dismount box assembly for the high-pressure high-flow plunger pump according to claim 9, characterized in that: the pre-tightening springs are multiple and are uniformly distributed along the circumferential direction of the large inner hole of the box body; and the spring positioning rear sleeve and the spring positioning front sleeve are provided with spring mounting grooves at positions corresponding to each pre-tightening spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120058768.XU CN214330879U (en) | 2021-01-11 | 2021-01-11 | Packing self-adjusting and conveniently-disassembled letter assembly for high-pressure large-flow plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120058768.XU CN214330879U (en) | 2021-01-11 | 2021-01-11 | Packing self-adjusting and conveniently-disassembled letter assembly for high-pressure large-flow plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214330879U true CN214330879U (en) | 2021-10-01 |
Family
ID=77905566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120058768.XU Active CN214330879U (en) | 2021-01-11 | 2021-01-11 | Packing self-adjusting and conveniently-disassembled letter assembly for high-pressure large-flow plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214330879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727748A (en) * | 2021-01-11 | 2021-04-30 | 大庆市金拓石油机械制造有限公司 | Packing self-adjusting and conveniently-disassembled letter assembly for high-pressure large-flow plunger pump |
-
2021
- 2021-01-11 CN CN202120058768.XU patent/CN214330879U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727748A (en) * | 2021-01-11 | 2021-04-30 | 大庆市金拓石油机械制造有限公司 | Packing self-adjusting and conveniently-disassembled letter assembly for high-pressure large-flow plunger pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112727748A (en) | Packing self-adjusting and conveniently-disassembled letter assembly for high-pressure large-flow plunger pump | |
| CN214330879U (en) | Packing self-adjusting and conveniently-disassembled letter assembly for high-pressure large-flow plunger pump | |
| US20140262407A1 (en) | Hydraulic hammer having impact system subassembly | |
| EP0005028B1 (en) | Bolt tensioning device | |
| CN111267035B (en) | Fast dismounting tool for cylinder sleeve of drilling pump | |
| CN210998474U (en) | Low pressure coal slurry pump disk seat extracting tool | |
| CN113339225B (en) | Mud pump cylinder sleeve convenient to disassemble and assemble, piston structure and disassembling and assembling method | |
| CN210476285U (en) | Square flange turning clamp | |
| CN108317250B (en) | Cylinder body and machining method thereof | |
| CN108081126B (en) | Clamp for grinding machine | |
| CN105269235A (en) | Pneumatic dual-air-cylinder type liner positioning mechanism of automobile welding clamp | |
| CN215804991U (en) | Make things convenient for mud pump cylinder liner, piston structure of dismouting | |
| CN110873087A (en) | Cylinder with adjustable piston rod control position | |
| CN114713906B (en) | Hydraulic expansion core mandrel structure for positioning and supporting inner hole of part, broaching machine clamp and method | |
| CN219379018U (en) | Quick-change ball joint back-pulling clamp | |
| CN201129282Y (en) | Bore mud pump rotary tight adjustable high pressure resistant piston | |
| CN220218318U (en) | Oil seal assembly fixture | |
| US20230081099A1 (en) | Front access packing arrangement and a packing assembly installation and removal method | |
| JPH09280210A (en) | High-pressure seal of hydraulic cylinder | |
| CN218018282U (en) | Compressor piston assembly and disassembly tools | |
| CN220167576U (en) | Grouting machine | |
| CN217551680U (en) | Motor framework mounting device | |
| CN219131606U (en) | Clamp for machining inner hole of cylinder sleeve | |
| CN214186966U (en) | Air valve mounting tool | |
| CN115045827B (en) | Split self-pretightening type plunger sealing assembly for high-pressure plunger pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |