CN205331424U - Filler structure with adjustable plunger pump is used - Google Patents

Filler structure with adjustable plunger pump is used Download PDF

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Publication number
CN205331424U
CN205331424U CN201521122345.0U CN201521122345U CN205331424U CN 205331424 U CN205331424 U CN 205331424U CN 201521122345 U CN201521122345 U CN 201521122345U CN 205331424 U CN205331424 U CN 205331424U
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CN
China
Prior art keywords
packing
filler
locking
adjustable
groove
Prior art date
Application number
CN201521122345.0U
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Chinese (zh)
Inventor
罗建华
杨明亮
沈伟
Original Assignee
南方泵业股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 南方泵业股份有限公司 filed Critical 南方泵业股份有限公司
Priority to CN201521122345.0U priority Critical patent/CN205331424U/en
Application granted granted Critical
Publication of CN205331424U publication Critical patent/CN205331424U/en

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Abstract

The utility model discloses a filler structure with adjustable plunger pump is used, including packing box, filler and retaining member, the filler setting in the packing box and through retaining member axial locking, the filler including inserting metal packing and the carbon packing who closes adjustable connection, carbon packing on be provided with adjustable locking groove, adjustable locking groove with locking the direction syntropy and the axial setting on carbon packing's terminal surface, metal packing on be provided with and lock the groove and insert mutually and close complex locking projection. Among this filler structure with adjustable plunger pump is used, the seal structure of adoption metal packing and carbon packing combination, metal packing can use repeatedly, the filler rigidity increasing of whole group, the leakproofness is better, and life is longer, increase the spring at the retaining member and between packing, behind the pretension, in the partly back of wearing and tearing of packing, the deformation of accessible spring reaches once more the purpose of automatic pretension, guarantees sealed effect.

Description

A kind of adjustable filling-material structure of plunger displacement pump
Technical field
This utility model relates to packing technique field, particularly relates to a kind of adjustable filling-material structure of plunger displacement pump。
Background technology
Traditional packing seal structure is made up of airtight and watertight padding, stuffing-box and locking member, and wherein, airtight and watertight padding is made up of upper filler, intermediate filler, lower filler。Filler is V-type filler, and upper filler, intermediate filler, lower filler material are graphite fibre。The V-arrangement angle coordinated between upper filler with intermediate filler, intermediate filler and lower filler is identical。Airtight and watertight padding is placed in stuffing-box, locking member lock between filler and plunger, and then reaches the purpose sealed。
The shortcoming of prior art: 1, whole group of filler required group number many (being generally made up of 5 to 8 group fillers), material cost is high;2, whole group of filler is single irreversible material, and dismounting, cannot be again with after abrasion with difficult in maintenance;3, all fillers are soft materials, poor rigidity between filler, and service life is short, easily leaks between filler and stuffing-box;4, soft materials is not easily processed, and machining accuracy is difficult to ensure that;5, locking number of times is few, and the locking cycle is short, and the adjustable extent of locking operation is little。
Chinese patent literature (the day for announcing: on October 19th, 2011, notification number: CN102221013A) disclose to provide and be automatically adjusted packing seal structure for water pump assembly, filler can be compressed degree in water pump assembly work process and automatically adjust by it, and degree of regulation is high。It includes filler seat and filler, described filler seat is installed on outside the axle sleeve of pump shaft, described filler is filled in the packing cavity of described filler seat and is compressed by gland, it is connected by adjusting bolt between described gland with filler seat, it is characterized in that: described adjusting bolt outer cover is equipped with spring, and described spring passes through nut press mounting in spring base。
Utility model content
The purpose of this utility model be in order to solve in prior art filler can not Reusability, dismounting with safeguard inconvenience, poor sealing performance, service life is short, processed complex, the problem that cost is high, and provide one can Reusability, dismount easy to maintenance, good seal performance, processing is simple, cost is low, and the adjustable extent of locking operation is big, and locking is often, the locking cycle is long, the adjustable packing seal structure of the plunger displacement pump of filler long service life。
This utility model realizes its technical purpose and be the technical scheme is that a kind of adjustable filling-material structure of plunger displacement pump, including stuffing-box, filler and locking member, described filler is arranged in stuffing-box and by locking member axial locking, described filler includes the metal packing and the graphite packing that plug together adjustable connection, described graphite packing is provided with adjustable locking groove, described adjustable locking groove in the same direction and is axially disposed within the end face of graphite packing with locking direction, described metal packing is provided with and plugs together the lock projection coordinated with locking slot mutually。This plunger displacement pump is with in adjustable filling-material structure, filler includes metal packing and graphite packing, during use, metal packing and graphite packing are loaded in stuffing-box successively, one metal packing coordinates one group of filler of composition with a graphite packing, 3-4 group axially it is distributed side by side along plunger, and make the adjustable locking groove in wherein graphite packing towards locking direction, it is towards high-pressure side, lock projection in metal packing is then inserted into inside the adjustable locking groove in graphite packing, whole group of filler is locked by locking member, make the metal packing filling in stuffing-box and graphite packing by pretightning force, and then reach filler and packing box seal, the purpose of filler and plunger seal。This plunger displacement pump is with, in adjustable filling-material structure, adopting the sealing structure of metal packing and graphite packing combination, and filler group number is generally 3 to 4 groups, and group number is few, and cost reduces;After graphite packing with plunger contact is completely worn out, only need to change graphite packing, metal packing can Reusability, escapable cost, and easy disassembly and maintenance;The structure adopting metal packing and graphite packing alternate is arranged, and whole group of filler rigidity strengthens, the better tightness between plunger and filler, filler and stuffing-box, longer service life;Metal packing is easily worked, and cost is low;And by the structure of adjustable locking groove with lock projection, the adjustable extent of locking operation is big, often, the locking cycle is long in locking, and filler extends service life。
As preferably, described metal packing is loop configuration, and the V-shaped structure of described lock projection is arranged on an end face of metal packing, and another end face of described metal packing is plane, and the internal diameter of described metal packing is more than the external diameter of plunger。Lock projection in metal packing is arranged on metal packing on the end face of low-pressure side, and V-shaped structure, such structure makes metal packing one end be plane, the other end is V-type convex surface, and the internal diameter of metal packing is more than the external diameter of plunger so that in use metal packing does not contact with plunger surface, also abrasion would not be produced, metal packing easily processes, can Reusability, cost low, easy disassembly and maintenance, suitable metal material can be chosen according to dosing pump pumped (conveying) medium。The setting of metal packing can strengthen the rigidity of whole group of filler, makes the better tightness between plunger and filler, filler and stuffing-box, increases the service life。
As preferably, described adjustable locking groove includes V-groove and square groove, and described V-groove is recessed inside the end face of graphite packing, described square groove along V-groove inside from trench bottom to graphite packing arrange and be parallel to graphite packing axis arrange。The setting of V-groove makes graphite packing one end be plane, and the other end is V-type concave surface, and has square groove in the centre of V-type concave surface V-groove。During pretension, due between metal packing with graphite packing V-type face coordinate and square groove is opened in graphite packing in the middle of V-groove so that the V-type concave surface of graphite packing very easily opens, and sealing effectiveness is more preferably。
As preferably, described graphite packing is loop configuration, and the internal diameter of described graphite packing and the outside diameter seal of plunger are equipped with。Graphite packing coordinates with plunger seal, after graphite packing with plunger contact is completely worn out, only need to change graphite packing, be greatly saved the cost of filler。
As preferably, the V-arrangement angle of the v-shaped structure of described lock projection is more than the V-arrangement angle of V-groove。Metal packing V-arrangement angle is more than graphite packing V-arrangement angle, and open square groove in the middle of graphite packing V-groove, this structure arranges and makes graphite packing have very big distortion allowance, and then increase the adjustable extent of locking operation, can repeatedly lock operation in actual use, and then extend the service life of filler。
As preferably, being additionally provided with pad and spring between filler and locking member, described pad rides on the end face of filler, and described spring is pressed between pad and the end face of locking member。Between locking member and filler, increase pad and spring, after a pretension, after filler weares and teares a part, the purpose of pretension automatically again can be reached by the deformation of spring, it is ensured that sealing effectiveness。
The beneficial effects of the utility model are: this plunger displacement pump is with, in adjustable filling-material structure, adopting the sealing structure of metal packing and graphite packing combination, and filler group number is generally 3 to 4 groups, and group number is few, and cost reduces;After graphite packing with plunger contact is completely worn out, only need to change graphite packing, metal packing can Reusability, escapable cost, and easy disassembly and maintenance;The structure adopting metal packing and graphite packing alternate is arranged, and whole group of filler rigidity strengthens, the better tightness between plunger and filler, filler and stuffing-box, longer service life;Metal packing is easily worked, and cost is low;In metal packing, the V-arrangement angle of lock projection is more than the V-arrangement angle of V-groove in graphite packing, and the adjustable extent of locking operation is big, and often, the locking cycle is long in locking, and filler extends service life;Between locking member and filler, increase spring, after a pretension, after filler weares and teares a part, the purpose of pretension automatically again can be reached by the deformation of spring, it is ensured that sealing effectiveness。
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the adjustable filling-material structure of this utility model plunger displacement pump;
Fig. 2 is the enlarged drawing at C place in Fig. 1;
Fig. 3 is a kind of structural representation of metal packing in this utility model;
Fig. 4 is a kind of structural representation of graphite packing in this utility model;
Fig. 5 is the another kind of structural representation of the adjustable filling-material structure of this utility model plunger displacement pump;
Fig. 6 is a kind of application structure schematic diagram of the adjustable filling-material structure of this utility model plunger displacement pump;
In figure: 1, stuffing-box, 2, filler, 3, locking member, 4, metal packing, 5, graphite packing, 6, adjustable locking groove, 7, lock projection, 8, V-groove, 9, square groove, 10, pad, 11, spring, 12, plunger。
Detailed description of the invention
Below by specific embodiment and in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail。
Embodiment 1:
At Fig. 1, in embodiment shown in Fig. 2, a kind of adjustable filling-material structure of plunger displacement pump, including stuffing-box 1, filler 2 and locking member 3, filler 2 is arranged in stuffing-box 1 and by locking member 3 axial locking, in this embodiment, filler 2 is provided with three groups, often organize metal packing 4 and the graphite packing 5 that filler 2 includes plugging together adjustable connection, metal packing 4 is loop configuration, graphite packing 5 is loop configuration, graphite packing 5 is provided with adjustable locking groove 6, adjustable locking groove 6 in the same direction and is axially disposed within the end face of graphite packing 5 with locking direction, metal packing 4 is provided with and plugs together, with adjustable locking groove 6 phase, the lock projection 7 coordinated。The V-shaped structure of lock projection 7 is arranged on (see figure 3) on an end face of metal packing 4, and another end face of metal packing 4 is plane, and the internal diameter of metal packing 4 is more than the external diameter of plunger。The internal diameter of graphite packing 5 and the outside diameter seal of plunger are equipped with。
Adjustable locking groove 6 includes V-groove 8 and square groove 9(is shown in Fig. 4), V-groove 8 is recessed inside the end face of graphite packing 5, square groove 9 along V-groove 8 inside from trench bottom to graphite packing 5 arrange and be parallel to graphite packing 5 axis arrange。The V-arrangement angle A of the v-shaped structure of lock projection 7 is more than the V-arrangement angle B of V-groove 8。
Embodiment 2:
In the embodiment shown in fig. 5, a kind of adjustable filling-material structure of plunger displacement pump, including stuffing-box 1, filler 2 and locking member 3, in this embodiment, filler 2 is provided with three groups, filler 2 is arranged in stuffing-box 1 and by locking member 3 axial locking, filler 2 includes the metal packing 4 and the graphite packing 5 that plug together adjustable connection, metal packing 4 is loop configuration, graphite packing 5 is loop configuration, graphite packing 5 is provided with adjustable locking groove 6, adjustable locking groove 6 in the same direction and is axially disposed within the end face of graphite packing 5 with locking direction, metal packing 4 is provided with and plugs together, with adjustable locking groove 6 phase, the lock projection 7 coordinated。The V-shaped structure of lock projection 7 is arranged on an end face of metal packing 4, and another end face of metal packing 4 is plane, and the internal diameter of metal packing 4 is more than the external diameter of plunger。The internal diameter of graphite packing 5 and the outside diameter seal of plunger are equipped with。
Adjustable locking groove 6 includes V-groove 8 and square groove 9, and V-groove 8 is recessed inside the end face of graphite packing 5, square groove 9 along V-groove 8 inside from trench bottom to graphite packing 5 arrange and be parallel to graphite packing 5 axis arrange。The V-arrangement angle A of the v-shaped structure of lock projection 7 is more than the V-arrangement angle B of V-groove 8。
Being additionally provided with pad 10 and spring 11 between filler 2 and locking member 3, pad 10 rides on the end face of filler 2, and spring 11 is pressed between the end face of pad 10 and locking member 3。
The adjustable filling-material structure of plunger displacement pump shown in above-described embodiment, (see figure 6) during concrete application, metal packing 4 and graphite packing 5 are loaded in stuffing-box 1 successively, one metal packing 4 coordinates one group of filler 2 of composition with a graphite packing 5, axially be distributed 3-4 group side by side along plunger 12, the V-groove 8 of wherein graphite packing 5 is towards high-pressure side。Locking member 3 adopts clamp ring, by locking member 3, whole group of filler is locked, and makes the metal packing 4 filling in stuffing-box 1 and graphite packing 5 by pretightning force, and then reaches the purpose of filler and packing box seal, filler and plunger seal。
Metal packing 4 one end is plane, and the other end is the convex surface of V-type lock projection 7, and wherein the V-arrangement angle between V-structure two inclined-plane of lock projection 7 is A, and metal packing 4 does not contact with the external cylindrical surface of plunger 12。Metal packing 4 easily processes, can Reusability, cost low, easy disassembly and maintenance, suitable metal material can be chosen according to dosing pump pumped (conveying) medium。Metal packing 4 can strengthen the rigidity of whole group of filler, makes the better tightness between plunger and filler, filler and stuffing-box, increases the service life。Graphite packing 5 one end is plane, and the other end is the V-type concave surface being provided with adjustable locking groove 6, and has square groove 9 in the middle of the bottom of V-groove 8, and wherein the V-arrangement angle between 8 liang of inclined-planes of V-groove is B, A > B, graphite packing 5 directly contacts with the external cylindrical surface of plunger 12。During pretension, due between metal packing 4 with graphite packing 5 V-type face coordinate and graphite packing 5 opens square groove 9 in the middle of the V-groove 8 so that the V-type concave surface of graphite packing 5 very easily opens, and sealing effectiveness is more preferably。This structure arranges and makes graphite packing 5 have very big distortion allowance, and then increases the adjustable extent locking operation, can repeatedly lock operation in actual use, and then extend the service life of filler。
The adjustable filling-material structure of this plunger displacement pump, adopts the sealing structure of metal packing and graphite packing combination, and filler group number is generally 3 to 4 groups, and group number is few, and cost reduces;After graphite packing with plunger contact is completely worn out, only need to change graphite packing, metal packing can Reusability, escapable cost, and easy disassembly and maintenance;The structure adopting metal packing and graphite packing alternate is arranged, and whole group of filler rigidity strengthens, the better tightness between plunger and filler, filler and stuffing-box, longer service life;Metal packing is easily worked, and cost is low;Metal packing V-arrangement angle is more than graphite packing V-arrangement angle, and the adjustable extent of locking operation is big, and often, the locking cycle is long in locking, and filler extends service life;Between locking member and filler, increase spring, after a pretension, after filler weares and teares a part, the purpose of pretension can be reached again by the deformation of spring, it is ensured that sealing effectiveness。

Claims (6)

1. the adjustable filling-material structure of plunger displacement pump, including stuffing-box (1), filler (2) and locking member (3), described filler (2) is arranged in stuffing-box (1) and by locking member (3) axial locking, it is characterized in that: described filler (2) includes plugging together metal packing (4) and the graphite packing (5) of adjustable connection, described graphite packing (5) is provided with adjustable locking groove (6), described adjustable locking groove (6) in the same direction and is axially disposed within the end face of graphite packing (5) with locking direction, described metal packing (4) is provided with and plugs together the lock projection (7) coordinated with adjustable locking groove (6) mutually。
2. a kind of adjustable filling-material structure of plunger displacement pump according to claim 1, it is characterized in that: described metal packing (4) is loop configuration, described lock projection (7) V-shaped structure is arranged on an end face of metal packing (4), another end face of described metal packing (4) is plane, and the internal diameter of described metal packing (4) is more than the external diameter of plunger。
3. a kind of adjustable filling-material structure of plunger displacement pump according to claim 2, it is characterized in that: described adjustable locking groove (6) includes V-groove (8) and square groove (9), described V-groove (8) is recessed inside the end face of graphite packing (5), described square groove (9) along V-groove (8) inside from trench bottom to graphite packing (5) arrange and be parallel to graphite packing (5) axis arrange。
4. a kind of adjustable filling-material structure of plunger displacement pump according to claim 1, it is characterised in that: described graphite packing (5) is loop configuration, and the described internal diameter of graphite packing (5) and the outside diameter seal of plunger are equipped with。
5. a kind of adjustable filling-material structure of plunger displacement pump according to claim 3, it is characterised in that: the V-arrangement angle (A) of the v-shaped structure of described lock projection (7) is more than the V-arrangement angle (B) of V-groove (8)。
6. the adjustable filling-material structure of a kind of plunger displacement pump according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that: between filler (2) and locking member (3), be additionally provided with pad (10) and spring (11), described pad (10) rides on the end face of filler (2), and described spring (11) is pressed between the end face of pad (10) and locking member (3)。
CN201521122345.0U 2015-12-31 2015-12-31 Filler structure with adjustable plunger pump is used CN205331424U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521122345.0U CN205331424U (en) 2015-12-31 2015-12-31 Filler structure with adjustable plunger pump is used

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521122345.0U CN205331424U (en) 2015-12-31 2015-12-31 Filler structure with adjustable plunger pump is used

Publications (1)

Publication Number Publication Date
CN205331424U true CN205331424U (en) 2016-06-22

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Application Number Title Priority Date Filing Date
CN201521122345.0U CN205331424U (en) 2015-12-31 2015-12-31 Filler structure with adjustable plunger pump is used

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108662340A (en) * 2018-05-24 2018-10-16 中国科学院力学研究所 A kind of sealed expansion joint for pure air wind-tunnel
CN110410318A (en) * 2019-07-23 2019-11-05 中山市富茂密封科技有限公司 A kind of anti-overflow filler of extruder gear pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108662340A (en) * 2018-05-24 2018-10-16 中国科学院力学研究所 A kind of sealed expansion joint for pure air wind-tunnel
CN110410318A (en) * 2019-07-23 2019-11-05 中山市富茂密封科技有限公司 A kind of anti-overflow filler of extruder gear pump

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: No. 46 Hangzhou City, Zhejiang province 311100 Yuhang District Renhe Street Renhe Road

Patentee after: Southern Gold environment Limited by Share Ltd

Address before: Renhe Town of Yuhang District of Hangzhou City, Zhejiang province 311107

Patentee before: Nanfang Pump Industry Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170330

Address after: 311100 Dongfengcun, Hangzhou Renhe street Yuhang District, building 3, building 2,

Patentee after: Hangzhou NANFANG Saipo Industrial Equipment Co., Ltd.

Address before: No. 46 Hangzhou City, Zhejiang province 311100 Yuhang District Renhe Street Renhe Road

Patentee before: Southern Gold environment Limited by Share Ltd