CN210566237U - Half-and-half type stuffing box - Google Patents
Half-and-half type stuffing box Download PDFInfo
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- CN210566237U CN210566237U CN201921054578.XU CN201921054578U CN210566237U CN 210566237 U CN210566237 U CN 210566237U CN 201921054578 U CN201921054578 U CN 201921054578U CN 210566237 U CN210566237 U CN 210566237U
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- packing box
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Abstract
The utility model discloses a half-and-half formula stuffing box belongs to screw conveyer technical field, and the box of having solved current screw conveyer is whole processing, must follow the tip installation of screw axis during the installation, and the operation is very inconvenient, has increased the problem of the unnecessary dismouting work load when overhauing, and its technical essential is: the packing box is assembled with the lower packing box to form the packing box, the upper packing box is connected with the lower packing box through the bolt and the nut, a gap is reserved between the sealing and positioning groove and the sealing and positioning boss, and the sealing and positioning groove and the sealing and positioning boss are provided with the whisker-containing sealing ring; the installation and disassembly are convenient, the overhaul and maintenance time of the sealing device is saved, the positioning is accurate, the sealing is reliable, the workshop uniform manufacturing is convenient, and the upper and lower stuffing boxes can be completely exchanged.
Description
Technical Field
The utility model relates to a screw conveyer field specifically is to a half-and-half formula stuffing box.
Background
The screw conveyor is widely applied to material conveying in various industries, wherein a screw conveying part needs to be sealed and isolated from the outside, and internal materials are prevented from leaking out. As shown in fig. 1-3 below, between the screw shaft 8 and the housing is the location of the sealing means 11.
One of the sealing forms is packing sealing, and the gland 4 compresses the packing 5 in the packing box 6 by means of tightness of the bolt 3, so that the packing 5 is tightly filled between the packing box 6 and the spiral shaft 8, and the sealing purpose is achieved. However, the stuffing box 6 has a box body integrally processed, and must be installed from the end of the spiral shaft 8 so as to be sleeved on the spiral shaft 8; later stage overhaul and maintenance must tear the bearing frame 22 in the outside off earlier, could overhaul, dismantle this kind of stuffing box 6, and the operation is very inconvenient, has increased the unnecessary dismouting work load when overhauing.
Therefore, there is a need to provide a half stuffing box, which aims to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a half-and-half formula stuffing box, its essential element who is the packing sealing device on the screw conveyer, the utility model discloses when aiming at overhauing sealedly, simplify dismouting work load, reach the bearing that does not dismantle both ends and support, just can realize dismantling the purpose of stuffing box to solve the problem among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a half-and-half formula stuffing box, includes the stuffing box, and the stuffing box comprises last stuffing box and lower stuffing box equipment, goes up and connects through bolt and nut between stuffing box and the lower stuffing box, leaves the space between sealed positioning groove and the sealed boss of location, is equipped with between sealed positioning groove and the sealed boss of location and takes must the sealing washer.
As a further proposal of the utility model, the structure of the upper stuffing box and the lower stuffing box is the same.
As a further scheme of the utility model, all be equipped with sealed positioning groove and sealed location boss on the contact surface of going up stuffing box and lower stuffing box.
As a further proposal of the utility model, the corresponding sealing and positioning groove and the sealing and positioning boss between the upper stuffing box and the lower stuffing box are identical.
As a further aspect of the present invention, the sealing ring with whiskers is made of rubber, and is composed of a circular ring-shaped sealing ring and two rubber whiskers, and is manufactured into an integrated structure.
As a further scheme of the utility model, two rubber tendrils of area palpus sealing washer must be the cylinder structure, set up space department between sealed positioning groove and the sealed boss of location and form the sealed face of laminating.
As a further aspect of the present invention, the bolt and nut is provided with a bolt head for one end, and the other end is connected with the nut for a threaded rod.
As a further aspect of the present invention, the bolt and nut are both established as threaded rods and are both connected with the nut and the threaded rod.
To sum up, compared with the prior art, the utility model has the following beneficial effects:
1. the installation and the disassembly are convenient; the utility model discloses a structure need not to follow the tip suit of screw axis, does not interfere with the successive installation order of bearing mutually yet, can direct mount, dismantlement, does not have the influence to the operation of other structures, has saved sealing device's maintenance time.
2. The utility model discloses a structure is equipped with sealed positioning groove and sealed location boss, and the location is accurate, and is sealed reliable.
3. The utility model discloses an upper and lower stuffing box appearance of stuffing box is the same, and the workshop of being convenient for is unified to make to upper and lower stuffing box can exchange completely.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural view of a sealing device of a conventional screw conveyor.
Fig. 2 is a schematic structural view of a packing seal structure in a conventional screw conveyor.
Fig. 3 is a schematic structural view of a material box in a conventional screw conveyor.
Fig. 4 is a schematic structural view of the middle half-type upper and lower stuffing boxes of the utility model.
Fig. 5 is a schematic structural diagram of the assembly of the middle half stuffing box of the utility model.
Fig. 6 is a schematic structural view of a stuffing box with whisker sealing rings in the utility model.
Fig. 7 is a schematic structural diagram of a half box body in a half-and-half stuffing box of the utility model.
Fig. 8 is a front view of the whisker seal ring in the utility model.
Fig. 9 is a plan view of the whisker seal ring in the utility model.
Fig. 10 is a left side view of the whisker seal ring in the utility model.
Fig. 11 is a schematic structural view of the extrusion deformation of the cylindrical whisker in the whisker-containing sealing ring of the utility model.
Wherein, the reference numbers: 1-sealing device, 2-bearing seat, 3-bolt, 4-gland, 5-packing, 6-packing box, 7-sealing ring, 8-spiral shaft, 9-upper packing box, 10-sealing positioning groove, 11-sealing positioning boss, 12-lower packing box, 13-bolt nut and 14-sealing ring with whisker.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Referring to fig. 4-6, the utility model discloses a half-and-half stuffing box, which comprises an upper stuffing box 9, a lower stuffing box 12, a bolt and a nut 13 and a sealing ring with whiskers 14.
The upper stuffing box 9 and the lower stuffing box 12 have the same shape and structure, and the upper stuffing box 9 and the lower stuffing box 12 are assembled to form the stuffing box 6; the upper stuffing box 9 and the lower stuffing box 12 are identical in shape, so that the workshop is convenient to manufacture uniformly, and the upper stuffing box 9 and the lower stuffing box 12 can be completely interchanged.
Referring to fig. 4 to 10, because the installation positions are different, there are divided into an upper stuffing box 9 and a lower stuffing box 12 in the assembly; the upper stuffing box 9 and the lower stuffing box 12 have the same shape;
the contact end surfaces of the upper stuffing box 9 and the lower stuffing box 12 are respectively provided with a sealing positioning groove 10 and a sealing positioning boss 11, the upper stuffing box 9 and the lower stuffing box 12 are connected through a bolt nut 13, and when the upper stuffing box 9 and the lower stuffing box 12 are connected together through the bolt nut 13, the sealing positioning groove 10 and the sealing positioning boss 11 can be conveniently and accurately positioned;
the corresponding sealing and positioning groove 10 between the upper stuffing box 9 and the lower stuffing box 12 is matched with the sealing and positioning boss 11, namely: the sealing and positioning groove 10 of the contact end face of the upper stuffing box 9 is matched with the sealing and positioning boss 11 of the contact end face of the lower stuffing box 12, and the sealing and positioning boss 11 of the contact end face of the upper stuffing box 9 is matched with the sealing and positioning groove 10 of the contact end face of the lower stuffing box 12; thereby being beneficial to the accurate positioning of the two.
A gap is reserved between the sealing positioning groove 10 and the sealing positioning boss 11, a sealing ring 14 with whiskers is arranged between the sealing positioning groove 10 and the sealing positioning boss 11, two cylindrical whiskers are arranged on the sealing ring 14 with whiskers, and the reserved gap is convenient for plugging the two cylindrical whiskers with the sealing ring 14 to play a role in sealing.
The seal ring 14 with the whiskers is made of rubber, is composed of a circular seal ring and two cylindrical whiskers, and is manufactured into an integral structure; the two pieces of rubber are cylindrical in structure, so that the two pieces of rubber can be extruded and deformed between the seal positioning groove 10 and the seal positioning boss 11 to form a fitted seal surface, as shown in fig. 10, thereby ensuring the sealing performance between the upper stuffing box 9 and the lower stuffing box 12 and the sealing performance of the connection of the half stuffing box 6 and the casing.
The utility model discloses in, bolt and nut 13 is equipped with the bolt head for one end, and the other end is threaded rod and nut connection constitution, also can be for both ends all establish to the threaded rod and all constitute with nut threaded connection to it is fixed to connect when the butt joint between convenient upper packing box 9 and the lower packing box 12.
The utility model discloses a theory of operation is:
when the packing sealing device 1 is installed, the packing box 6 and the screw shaft 8 are assembled only by sleeving the sealing ring 14 with the beard into the shaft end of the screw shaft 8. During installation, the half stuffing boxes 6 are buckled on the spiral shaft 8 from the upper part and the lower part, when the upper stuffing box 9 is in butt joint with the lower stuffing box 12, the cylindrical whiskers with whisker sealing rings 14 need to be clamped, then the upper stuffing box 9 and the lower stuffing box 12 are fixedly connected through bolts and nuts 13, and finally the stuffing boxes 6 are fixed on the shell.
When the stuffing box 6 needs to be maintained and replaced after a period of operation, the bolt and the nut 13 for fixing the upper stuffing box 9 and the lower stuffing box 12 are firstly disassembled, so that the stuffing box 6 can be directly disassembled from the shell, the stuffing 5 and the spiral shaft 8 are exposed, and the stuffing box 6 after being cleaned and maintained can be reinstalled according to the steps of the first section.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongings the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. Those skilled in the art will appreciate that other embodiments of the invention can be devised which do not require inventive effort and which fall within the scope of the present invention.
Claims (8)
1. The half-and-half type stuffing box comprises a stuffing box (6) and is characterized in that the stuffing box (6) is formed by assembling an upper stuffing box (9) and a lower stuffing box (12), the upper stuffing box (9) and the lower stuffing box (12) are connected through bolts and nuts (13), a gap is reserved between a sealing positioning groove (10) and a sealing positioning boss (11), and a sealing ring (14) with whiskers is arranged between the sealing positioning groove (10) and the sealing positioning boss (11).
2. A packing half-and-half according to claim 1, characterized in that the upper (9) and lower (12) stuffing boxes are structurally identical.
3. A packing half-and-half according to claim 2, characterized in that the contact end faces of the upper packing box (9) and the lower packing box (12) are provided with a seal positioning groove (10) and a seal positioning boss (11).
4. A packing half according to claim 3, wherein the corresponding seal locating groove (10) and seal locating boss (11) between the upper packing box (9) and lower packing box (12) are coincident.
5. A packing box half and half according to claim 4, characterized in that the whisker sealing ring (14) is made of rubber and is formed by a circular ring-shaped sealing ring and two rubber whiskers and is manufactured into an integral structure.
6. A packing box half according to claim 5, wherein the two rubber whiskers bearing whisker seal rings (14) are of cylindrical configuration, are disposed in the gap between the seal positioning groove (10) and the seal positioning boss (11) and form a snug sealing surface.
7. A packing box half and half according to any one of claims 1 to 6, wherein the bolt and nut (13) is formed by a bolt head at one end and a threaded rod and nut at the other end.
8. A packing box half and half according to any one of claims 1 to 6, wherein the bolt and nut (13) is formed by a threaded rod at both ends and a nut screw-coupled thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921054578.XU CN210566237U (en) | 2019-07-08 | 2019-07-08 | Half-and-half type stuffing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921054578.XU CN210566237U (en) | 2019-07-08 | 2019-07-08 | Half-and-half type stuffing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566237U true CN210566237U (en) | 2020-05-19 |
Family
ID=70634180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921054578.XU Active CN210566237U (en) | 2019-07-08 | 2019-07-08 | Half-and-half type stuffing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210566237U (en) |
-
2019
- 2019-07-08 CN CN201921054578.XU patent/CN210566237U/en active Active
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