CN205841177U - A kind of letter body assembly - Google Patents
A kind of letter body assembly Download PDFInfo
- Publication number
- CN205841177U CN205841177U CN201620840561.7U CN201620840561U CN205841177U CN 205841177 U CN205841177 U CN 205841177U CN 201620840561 U CN201620840561 U CN 201620840561U CN 205841177 U CN205841177 U CN 205841177U
- Authority
- CN
- China
- Prior art keywords
- letter body
- graphite annulus
- plunger
- spring base
- guide ring
- 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.)
- Expired - Fee Related
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- Sealing Devices (AREA)
Abstract
This utility model provides a kind of letter body assembly, including letter body, described letter body is provided with plunger cavity, it is provided with plunger in described plunger cavity, it is provided with projection in the middle part of described plunger cavity, described protruding side is sequentially provided with the first guide ring, first graphite annulus and gland, opposite side is sequentially provided with spring base, second guide ring, second graphite annulus, fairlead and imbibition spring base, described letter body is provided with pressure cap near one end of gland, described pressure cap is threadeded with letter body, described pressure cap is provided with through hole, it is provided with spring between described spring base and the second guide ring, owing to have employed technique scheme, this utility model simple in construction, easy for installation, the sealing means combined with graphite annulus and packing, reduce the abrasion to plunger, extend the service life of plunger；Pressure cap, gland and imbibition spring base fix graphite annulus and packing_seal, it is to avoid graphite annulus and packing move reciprocatingly along with plunger, and worn piston saves the operating cost of equipment.
Description
Technical field
This utility model relates to plunger pump technique field, more particularly to a kind of letter body assembly.
Background technology
Commonly use high-pressure plunger pump seal as flow process pump, plungers pump plunger in oil, chemical industry, chemical fertilizer industry field
Being the primary sealing member of equipment, at present, plunger sealing structure is complicated, seal easy to wear, coming off easily blocks oil diverting port, cause
Oil return is not smooth, and plunger leakage of oil is serious, the bad not only serious waste machine oil of plunger seal, makes plunger displacement pump be chronically at lubrication not simultaneously
Good state, is degrading plunger displacement pump working condition, adds equipment operating cost, and filler easily causes plunger surface abrasion, contracting
Short-plunger service life, and frequently change plunger, cause intensity of workers to increase, improve equipment operating cost.
Utility model content
The technical problems to be solved in the utility model is to overcome drawbacks described above, it is provided that a kind of good sealing effect, reduces coupled columns
The abrasion of plug, extends the letter body assembly in plunger service life.
For solving the problems referred to above, this utility model be the technical scheme is that
A kind of letter body assembly, including letter body, described letter body is provided with plunger cavity, is provided with plunger, described post in described plunger cavity
Being provided with projection in the middle part of plug chamber, described protruding side is sequentially provided with the first guide ring, the first graphite annulus and gland, and described first guides
Ring, the first graphite annulus and gland are socketed with plunger, and opposite side is sequentially provided with spring base, the second guide ring, the second graphite annulus, guiding
Set and imbibition spring base, described spring base, the second guide ring, the second graphite annulus, fairlead and imbibition spring base and plunger socket,
It is provided with the first packing between described first guide ring and the first graphite annulus, between described first graphite annulus and gland, is provided with the first dish
Root, described letter body is provided with pressure cap near one end of gland, and described pressure cap is threadeded with letter body, and described pressure cap is provided with through hole,
It is provided with spring between described spring base and the second guide ring, between described second guide ring and the second graphite annulus, is provided with the second dish
Root, is provided with the second packing between described second graphite annulus and fairlead.
Improve as one, between described imbibition spring base and letter body, be provided with the second O.
Improving as one, the quantity of described second graphite annulus is two, is provided with the second dish between two the second graphite annulus
Root.
Improving as one, described letter body is provided with annular groove away from one end of pressure cap, is provided with an O type in described groove
Circle.
Improving as one, inside described first graphite annulus, two ends are provided with annular edge groove, and described first graphite annulus end sets
Some receiving chambeies, described receiving chamber is had to connect with limit groove.
Improve as one, between described receiving chamber and limit groove, be provided with link slot.
Improving as one, described receiving chamber is hemispherical.
Owing to have employed technique scheme, this utility model simple in construction, easy for installation, combine with graphite annulus and packing
Sealing means, reduce abrasion to plunger, extend the service life of plunger；Pressure cap, gland and imbibition spring base fix graphite
Ring and packing_seal, it is to avoid graphite annulus and packing move reciprocatingly along with plunger, and worn piston, the operation saving equipment becomes
This.
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of this utility model a kind of letter body assembly；
Accompanying drawing 2 is the structural representation of the first graphite annulus in this utility model a kind of letter body assembly；
Accompanying drawing 3 is the structural representation of accompanying drawing 2 middle section A-A.
In figure: 1-letter body；2-pressure cap；3-plunger；4-gland；5-the first packing；6-the first graphite annulus；7-first guides
Ring；8-spring base；9-the second packing；10-the second graphite annulus；11-fairlead；12-the first O；13-the second O；14-
Imbibition spring base；15-the second guide ring；16-spring；17-limit groove；18-link slot；19-accommodates chamber.
Detailed description of the invention
Embodiment:
As it is shown in figure 1, a kind of letter body assembly, including letter body 1, described letter body 1 is provided with plunger cavity, is provided with in described plunger cavity
Plunger 3, described for ladder oblique crank Z, be provided with projection in the middle part of described plunger cavity, described protruding side be sequentially provided with the first guide ring 7,
First graphite annulus 6 and gland 4, described first guide ring the 7, first graphite annulus 6 and gland 4 be socketed with plunger 3, and opposite side sets successively
There are spring base the 8, second guide ring the 15, second graphite annulus 10, fairlead 11 and an imbibition spring base 14, described spring base 8, second lead
It is socketed with plunger 3 to ring the 15, second graphite annulus 10, fairlead 11 and imbibition spring base 14, described first guide ring 7 and the first stone
It is provided with two the first packings 5 between ink ring 6, between described first graphite annulus 6 and gland 4, is provided with three the first packings 5, described letter
Body 1 is provided with pressure cap 2 near one end of gland 4, and described pressure cap 2 is threadeded with letter body 1, and described pressure cap 2 is provided with through hole, described
It is provided with spring 16 between spring base 8 and the second guide ring 15, between described second guide ring 15 and the second graphite annulus 10, is provided with three
Individual second packing 9, is provided with the second packing 9 between described second graphite annulus 10 and fairlead 11.
Gland 4 is compressed by described pressure cap 2.
The second O 13 it is provided with between described imbibition spring base 14 and letter body 1.
The quantity of described second graphite annulus 10 is two, is provided with the second packing 9 between two the second graphite annulus 10.
Described letter body 1 is provided with annular groove away from one end of pressure cap 2, is provided with the first O 12 in described groove.
As shown in Figure 2,3, inside described first graphite annulus 6, two ends are provided with annular edge groove 17, described first graphite annulus 6 end
Being provided with some receiving chambeies 19, described receiving chamber 19 connects with limit groove 17.
It is provided with link slot 18 between described receiving chamber 19 and limit groove 17.Described link slot 18 cross section is arc.
Described receiving chamber 19 is hemispherical.
Second graphite annulus 10 structure is identical with the first graphite annulus 6.
Plunger cavity inner part structure is strong, the most easy to wear, and the chip wear and tear, come off can also be gathered in conveying in limit groove 17
To accommodating in chamber 19, prevent worn piston, block oil circuit.
Above an embodiment of the present utility model is described in detail, but described content is the most of the present utility model
Preferred embodiment, it is impossible to be considered for limiting practical range of the present utility model.All made according to this utility model application range
Impartial change and improvement etc., within patent covering scope of the present utility model all should be belonged to.
Claims (7)
1. a letter body assembly, including letter body (1), described letter body (1) is provided with plunger cavity, is provided with plunger (3) in described plunger cavity,
It is characterized in that, being provided with projection in the middle part of described plunger cavity, described protruding side is sequentially provided with the first guide ring (7), the first graphite
Ring (6) and gland (4), described first guide ring (7), the first graphite annulus (6) and gland (4) and plunger (3) socket, opposite side depends on
Secondary spring base (8), the second guide ring (15), the second graphite annulus (10), fairlead (11) and the imbibition spring base (14) of being provided with, described
Spring base (8), the second guide ring (15), the second graphite annulus (10), fairlead (11) and imbibition spring base (14) overlap with plunger (3)
Connect, between described first guide ring (7) and the first graphite annulus (6), be provided with the first packing (5), described first graphite annulus (6) and pressure
Being provided with the first packing (5) between set (4), described letter body (1) is provided with pressure cap (2), described pressure cap (2) near one end of gland (4)
Threadeding with letter body (1), described pressure cap (2) is provided with through hole, is provided with between described spring base (8) and the second guide ring (15)
Spring (16), is provided with the second packing (9), described second graphite annulus between described second guide ring (15) and the second graphite annulus (10)
And between fairlead (11), be provided with the second packing (9) (10).
Letter body assembly the most according to claim 1, it is characterised in that between described imbibition spring base (14) and letter body (1)
It is provided with the second O (13).
Letter body assembly the most according to claim 1, it is characterised in that the quantity of described second graphite annulus (10) is two,
It is provided with the second packing (9) between two the second graphite annulus (10).
Letter body assembly the most according to claim 1, it is characterised in that described letter body (1) is provided with away from one end of pressure cap (2)
Annular groove, is provided with the first O (12) in described groove.
Letter body assembly the most according to claim 1, it is characterised in that two ends, described first graphite annulus (6) inner side are provided with ring
Shape limit groove (17), described first graphite annulus (6) end is provided with some receiving chambeies (19), and described receiving chamber (19) is with limit groove (17) even
Logical.
Letter body assembly the most according to claim 5, it is characterised in that be provided with between described receiving chamber (19) and limit groove (17)
Link slot (18).
Letter body assembly the most according to claim 5, it is characterised in that described receiving chamber (19) is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620840561.7U CN205841177U (en) | 2016-08-04 | 2016-08-04 | A kind of letter body assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620840561.7U CN205841177U (en) | 2016-08-04 | 2016-08-04 | A kind of letter body assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841177U true CN205841177U (en) | 2016-12-28 |
Family
ID=57617588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620840561.7U Expired - Fee Related CN205841177U (en) | 2016-08-04 | 2016-08-04 | A kind of letter body assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841177U (en) |
-
2016
- 2016-08-04 CN CN201620840561.7U patent/CN205841177U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20190804 |