CN211715340U - Mortar pump with adjustable gap and easy replacement - Google Patents
Mortar pump with adjustable gap and easy replacement Download PDFInfo
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- CN211715340U CN211715340U CN202020260471.7U CN202020260471U CN211715340U CN 211715340 U CN211715340 U CN 211715340U CN 202020260471 U CN202020260471 U CN 202020260471U CN 211715340 U CN211715340 U CN 211715340U
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- pump cover
- polyethylene layer
- mortar
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Abstract
The utility model discloses an adjustable mortar pump of easily changing in clearance, including impeller, pump shaft, the pump body and bearing box, preceding pump cover is the design of plastic spare, preceding pump cover adopts following structure can dismantle to be fixed the front end of pump case: the front cover pressing plate is detachably fixed at the front end of the pump shell through a plurality of first bolts penetrating through the front cover pressing plate and in threaded connection with the front end of the pump shell, and the peripheral edge of the front pump cover is clamped between the front cover pressing plate and the front end of the pump shell. The utility model discloses a plastic part design and the mounting means design of preceding pump cover can force preceding pump cover elastic deformation through adjusting first bolt to can reduce the clearance between preceding pump cover and the impeller, only need take off first bolt, lift the protecgulum clamp plate off from the pump body, then just can lift the impeller off, have the easy advantage of changing of vulnerable part.
Description
Technical Field
The utility model relates to a mortar pump field, specifically speaking relate to an adjustable mortar pump of easily changing in clearance.
Background
The mortar pump is a corrosion-resistant, wear-resistant and leak-proof chemical pump, and has a more prominent effect particularly in the working condition that the conveying medium contains more solid particles and waste residues. The damage and seal leakage of the mortar pump are generally caused by particle friction and particle blockage at the seal during the process of conveying the medium (solid particles and waste residues). Because a gap exists between the impeller and the pump cover, the gap is increased due to the flowing of fluid after long-term operation, so that the flow and the lift are reduced, a user cannot normally produce the pump, and the impeller and the pump cover fittings need to be frequently replaced, so that economic loss is caused. Because the fluid flow at the sealing position is blocked due to more particles of the conveying medium, the temperature at the sealing position is higher and higher, and the fluid cannot be cooled timely, so that the sealing failure is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a mortar pump that clearance between preceding pump cover and the impeller is adjustable, vulnerable part is changed easily is provided.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides an adjustable mortar pump of easily changing in clearance, includes impeller, pump shaft, the pump body and connects the bearing box at the rear end of the pump body, the impeller sets up in the pump body, the pump shaft rotates to be installed on the bearing box, the pump body includes pump case, preceding pump cover and back pump cover, back pump cover can be dismantled and fix the rear end of pump case, the front end of pump shaft passes back pump cover with the impeller is connected, preceding pump cover is the design of plastic spare, preceding pump cover adopts following structure can dismantle to fix the front end of pump case: the front cover pressing plate is detachably fixed at the front end of the pump shell through a plurality of first bolts penetrating through the front cover pressing plate and in threaded connection with the front end of the pump shell, and the peripheral edge of the front pump cover is clamped between the front cover pressing plate and the front end of the pump shell.
The front pump cover is provided with a pump body inlet part, the pump body inlet part penetrates out of the front cover pressing plate forwards, the outer wall of the pump body inlet part is provided with a groove, the inner end of the positioning clamping block is clamped into the groove, the outer end of the positioning clamping block is in surface contact with the front end face of the front cover pressing plate, the connecting pipe is aligned with the pump body inlet part and communicated with the pump body inlet part, the outer wall of the rear end of the connecting pipe is provided with a first flange extending outwards in the radial direction, and the first flange is detachably connected with the front cover pressing plate through a plurality of second bolts which penetrate through the first flange and are in threaded connection with the front cover pressing plate.
The mechanical seal and the sealing gland are sleeved on the shaft sleeve, the sealing gland is detachably fixed on the rear pump cover, and the mechanical seal is clamped between the sealing gland and the rear pump cover.
Further, the mechanical seal is a cartridge type double-end-face mechanical seal.
Further, the outer surface of the sleeve is lined with a first ultra high molecular weight polyethylene layer.
Further, the inner surface of the pump casing is lined with a second ultra high molecular weight polyethylene layer.
Furthermore, the front end face of the second ultrahigh molecular polyethylene layer is inwards recessed in the front end face of the pump shell, so that a first stepped structure is formed at the front ends of the pump shell and the second ultrahigh molecular polyethylene layer, the front pump cover is in a two-stage stepped shaft shape with a large front section and a small rear section, the large diameter section of the front pump cover is in concave-convex fit with the first stepped structure, the small diameter section of the front pump cover extends into the inner side of the second ultrahigh molecular polyethylene layer, and a first sealing ring is arranged between the front end face of the second ultrahigh molecular polyethylene layer and the front pump cover.
Furthermore, the rear end face of the second ultrahigh molecular polyethylene layer is inwards recessed in the rear end face of the pump shell, so that a second stepped structure is formed at the rear ends of the pump shell and the second ultrahigh molecular polyethylene layer, the rear pump cover is in a three-stage stepped shaft shape with a small front part and a large rear part, the largest diameter section of the rear pump cover is located at the rear side of the pump shell, the middle diameter section of the rear pump cover is in concave-convex fit with the second stepped structure, the smallest diameter section of the rear pump cover extends into the inner side of the second ultrahigh molecular polyethylene layer, and a second sealing ring is arranged between the rear end face of the second ultrahigh molecular polyethylene layer and the rear pump cover.
Further, a side of the rear pump cover facing the pump housing is lined with a third ultra high molecular weight polyethylene layer.
Furthermore, the middle part of the front pump cover is designed in a horn mouth shape with a small front part and a big back part.
The beneficial effects of the utility model are embodied in:
to the mortar pump, because of the solid particle friction between impeller and the preceding pump cover, can make between the two clearance crescent and lead to the lift, the flow decline of pump, and the utility model discloses a clearance between preceding pump cover and the impeller then can be adjusted to the all plastic part design and the mounting means design of preceding pump cover, and the concrete way is: the front cover pressing plate is tightly pressed on the front pump cover by adjusting the first bolt to force the front pump cover to elastically deform, so that the gap between the front pump cover and the impeller can be reduced, the service life of the front pump cover can be prolonged, the front pump cover does not need to be replaced immediately, and the use cost is reduced;
when the clearance between current pump cover and the impeller can't go to change through adjusting first bolt, only need can reuse the fitting surface turning of preceding pump cover and pump case to can prolong the life of preceding pump cover, need not to change preceding pump cover immediately, reduced use cost.
In addition, the utility model discloses from the easy angle of changing of wearing parts, when needing to change the impeller, only need to take off first bolt, lift off the protecgulum clamp plate from the pump body, the front pump cover that compresses tightly between protecgulum clamp plate and pump case can be taken out, then can lift off the impeller; when mechanical seal, axle sleeve need be changed, only need lift back pump cover off, can dismantle mechanical seal and axle sleeve, consequently, the utility model has the advantage that vulnerable part is changed easily.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
The components in the drawings are labeled as follows: the pump comprises a front cover pressing plate 1, a front pump cover 2, a pump shell 3, a rear pump cover 4, a bearing box 5, an impeller 6, a pump shaft 7, an adapter tube 8, a first flange 9, a second flange 10, a mechanical seal 11, a seal gland 12, a shaft sleeve 13, a first bolt 14, a second bolt 15, a positioning fixture block 16, a pump body inlet part 17, a first ultrahigh molecular polyethylene layer 18, a second ultrahigh molecular polyethylene layer 19, a third ultrahigh molecular polyethylene layer 20, a first step structure 21, a second step structure 22, a first sealing ring 23, a second sealing ring 24 and a bottom plate 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
See fig. 1.
The utility model discloses adjustable mortar pump of easily changing in clearance, be in including impeller 6, pump shaft 7, the pump body and connection the bearing box 5 of the rear end of the pump body, impeller 6 sets up in the pump body, pump shaft 7 rotates to be installed on the bearing box 5, the pump body includes pump case 3, preceding pump cover 2 and back pump cover 4, back pump cover 4 can be dismantled to fix the rear end of pump case 3, the front end of pump shaft 7 passes back pump cover 4 with impeller 6 is connected, preceding pump cover 2 is the design of plastic spare, preceding pump cover 2 adopts following structure to dismantle to be fixed the front end of pump case 3: the method comprises the steps that a front cover pressing plate 1 is arranged, the front cover pressing plate 1 is detachably fixed at the front end of a pump shell 3 through a plurality of first bolts 14 which penetrate through the front cover pressing plate 1 and are in threaded connection with the front end of the pump shell 3, and the peripheral edge of a front pump cover 2 is clamped between the front cover pressing plate 1 and the front end of the pump shell 3.
To the mortar pump, because of the solid particle friction between impeller and the preceding pump cover, can make between the two clearance crescent and lead to the lift, the flow decline of pump, and the utility model discloses an all plastic part design and the mounting means design of preceding pump cover, then can adjust the clearance (d is shown in the picture) between preceding pump cover and the impeller, specific way is: the front cover pressing plate is tightly pressed on the front pump cover by adjusting the first bolt, so that the front pump cover is forced to elastically deform (the front pump cover is made of metal in the prior art and cannot deform), the gap between the front pump cover and the impeller can be reduced, the service life of the front pump cover can be prolonged, the front pump cover does not need to be replaced immediately, and the use cost is reduced;
when the clearance between current pump cover and the impeller can't go to change through adjusting first bolt, only need can reuse the fitting surface turning (the pump cover before the turning) of preceding pump cover and pump case to can prolong the life of preceding pump cover, need not to change preceding pump cover immediately, reduced use cost.
In addition, as for vulnerable parts (generally comprising an impeller and a pump cover, and then a shaft sleeve and a mechanical seal), firstly, the service life of the vulnerable parts needs to be prolonged as much as possible, and secondly, the vulnerable parts are easy to replace and are the characteristics which a good pump needs to have; the utility model discloses from the easy angle of changing of wearing parts, when needing to change the impeller, only need take off first bolt, lift off the protecgulum clamp plate from the pump body, the front pump cover that compresses tightly between protecgulum clamp plate and pump case can be taken out, then can lift off the impeller; when mechanical seal, axle sleeve need be changed, only need lift back pump cover off, can dismantle mechanical seal and axle sleeve, consequently, the utility model has the advantage that vulnerable part is changed easily.
In an embodiment, the pump cover further comprises a connecting pipe 8 and a positioning fixture block 16, a pump body inlet portion 17 is arranged on the front pump cover 2, the pump body inlet portion 17 penetrates through the front cover pressure plate 1 forward, a groove is formed in the outer wall of the pump body inlet portion 17, the inner end of the positioning fixture block 16 is clamped in the groove, the outer end of the positioning fixture block 16 is in surface contact with the front end face of the front cover pressure plate 1, the connecting pipe 8 is aligned with and communicated with the pump body inlet portion 17, a first flange 9 extending radially outwards is arranged on the outer wall of the rear end of the connecting pipe 8, and the first flange 9 is detachably connected with the front cover pressure plate 1 through a plurality of second bolts 15 penetrating through the first flange 9 and screwed on the front cover pressure plate 1. The connection pipe is used for being conveniently connected with a pipeline, the connection pipe can be fixedly installed through the design, and the positioning clamping block is used for limiting the displacement of the front pump cover in the axial direction of the impeller shaft.
Preferably, the middle part of the front pump cover 2 is designed in a bell mouth shape with a small front part and a big rear part. When the clearance between adjustment front pump cover and the impeller, because front pump cover is fixed a position the fixture block spacing, the edge all around is fixed a position by the pump body, and the conical surface of the horn mouth form of front pump cover is forced elastic deformation like this to reduce and the clearance between the impeller, thereby can prolong front pump cover's life, need not to change front pump cover immediately, reduced use cost.
Preferably, the outer wall of the front end of the adapter tube 8 is provided with a second flange 9 protruding radially outwards. The second flange acts as a connecting flange tube to facilitate connection with the pipe.
In an embodiment, the pump further comprises a mechanical seal 11 and a seal gland 12, a shaft sleeve 13 is sleeved at the front end of the pump shaft 7, the mechanical seal 11 and the seal gland 12 are sleeved on the shaft sleeve 13, the seal gland 12 is detachably fixed on the rear pump cover 4, and the mechanical seal 11 is tightly clamped between the seal gland 12 and the rear pump cover 4. The mechanical seal can be taken off only by detaching the sealing gland, and the quick-wear part is easy to replace.
In one embodiment, the mechanical seal 11 is a cartridge-style double mechanical seal 11. Adopt collection dress formula double mechanical seal, under the condition of sealed department of granule jam, the sound ring of sealed face can be effectual through the cooling, wash, has reached and can guarantee under the operating mode of scarce liquid that sealed can not become invalid, very big improvement life.
Preferably, the shaft sleeve 13 is made of 304 stainless steel, the outer surface of the shaft sleeve 13 is lined with the first ultra-high molecular polyethylene layer 18, the strength is reliable, the corrosion resistance of the shaft sleeve is improved, the shaft sleeve is suitable for various temperature change working conditions, and the problems that the shaft sleeve is difficult to disassemble, repair and maintain due to corrosion and the like cannot be caused.
In one embodiment, the inner surface of the pump casing 3 is lined with a second ultra high molecular weight polyethylene layer 19 to improve the corrosion resistance of the pump casing.
In an embodiment, the front end surface of the second ultra-high molecular polyethylene layer 19 is recessed inward in the front end surface of the pump case 3, so that a first stepped structure 21 is formed at the front ends of the pump case 3 and the second ultra-high molecular polyethylene layer 19, the front pump cover 2 is in a two-stage stepped shaft shape with a large front part and a small rear part, a section 23 with a large diameter of the front pump cover is in concave-convex fit with the first stepped structure 21, a section 24 with a small diameter of the front pump cover extends into the inner side of the second ultra-high molecular polyethylene layer 19, and a first sealing ring 23 is arranged between the front end surface of the second ultra-high molecular polyethylene layer 19 and the front pump cover 2.
In an embodiment, the rear end surface of the second ultra-high molecular polyethylene layer 19 is recessed inward in the rear end surface of the pump housing 3, so that a second stepped structure 22 is formed at the rear ends of the pump housing 3 and the second ultra-high molecular polyethylene layer 19, the rear pump cover 4 is in a three-stage stepped shaft shape with a small front part and a large rear part, the largest diameter section of the rear pump cover 4 is located at the rear side of the pump housing 3, the middle diameter section 25 of the rear pump cover is in concave-convex fit with the second stepped structure 22, the smallest diameter section 26 of the rear pump cover extends into the inner side of the second ultra-high molecular polyethylene layer 19, and a second sealing ring 24 is arranged between the rear end surface of the second ultra-high molecular polyethylene layer 19 and the rear pump cover 4.
The both ends of foretell pump case are connected through first, two steps and preceding, back pump cover cooperation, and the inner peripheral surface of preceding, back pump cover and pump case and the terminal surface on second ultra high molecular polyethylene layer have two fitting surfaces like this to set up first, two sealing washers between the fitting surface of side, can effectively improve the leakproofness, and the installation precision is high moreover, and the cooperation is more stable.
In one embodiment, the side of the rear pump cap 4 facing the pump housing 3 is lined with a third ultra high molecular weight polyethylene layer 20 to improve corrosion resistance of the rear pump cap.
In one embodiment, the pump further comprises a bottom plate 25, and the pump housing 3 and the bearing housing 5 are fixed on the bottom plate 25. By the design, the product can be integrated, and the integral transportation and installation are convenient.
In concrete implementation, the rear pump cover is detachably connected with the pump shell and the bearing box through bolts, and when the shaft sleeve and the integrated double-end-face mechanical seal need to be replaced, the rear pump cover only needs to be detached.
It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.
Claims (10)
1. The utility model provides an adjustable mortar pump of easily changing in clearance, includes impeller, pump shaft, the pump body and connects the bearing box of the rear end of the pump body, the impeller sets up in the pump body, the pump shaft rotates to be installed on the bearing box, its characterized in that: the pump body includes pump case, preceding pump cover and back pump cover, back pump cover can be dismantled and fix the rear end of pump case, the front end of pump shaft passes back pump cover with the impeller is connected, preceding pump cover is plastic part design, preceding pump cover adopts following structure can be dismantled and fix the front end of pump case: the front cover pressing plate is detachably fixed at the front end of the pump shell through a plurality of first bolts penetrating through the front cover pressing plate and in threaded connection with the front end of the pump shell, and the peripheral edge of the front pump cover is clamped between the front cover pressing plate and the front end of the pump shell.
2. The adjustable gap and easy replaceable mortar pump as set forth in claim 1, wherein: the front pump cover is provided with a pump body inlet part, the pump body inlet part penetrates out of the front cover pressing plate forwards, the outer wall of the pump body inlet part is provided with a groove, the inner end of the positioning clamping block is clamped into the groove, the outer end of the positioning clamping block is in surface contact with the front end face of the front cover pressing plate, the connecting pipe is aligned with the pump body inlet part and communicated with the pump body inlet part, the outer wall of the rear end of the connecting pipe is provided with a first flange extending outwards in the radial direction, and the first flange is detachably connected with the front cover pressing plate through a plurality of second bolts which penetrate through the first flange and are in threaded connection with the front cover pressing plate.
3. The mortar pump of claim 1 or 2, wherein the gap is adjustable and the mortar pump is easy to replace: the pump is characterized by further comprising a mechanical seal and a sealing gland, wherein a shaft sleeve is sleeved at the front end of the pump shaft, the mechanical seal and the sealing gland are sleeved on the shaft sleeve, the sealing gland is detachably fixed on the rear pump cover, and the mechanical seal is clamped between the sealing gland and the rear pump cover.
4. The gap-adjustable and easily replaceable mortar pump as claimed in claim 3, wherein: the mechanical seal is a cartridge type double-end-face mechanical seal.
5. The gap-adjustable and easily replaceable mortar pump as claimed in claim 3, wherein: the outer surface of the shaft sleeve is lined with a first ultra-high molecular polyethylene layer.
6. The mortar pump of claim 1 or 2, wherein the gap is adjustable and the mortar pump is easy to replace: the inner surface of the pump casing is lined with a second ultra-high molecular polyethylene layer.
7. The gap-adjustable and easily replaceable mortar pump as set forth in claim 6, wherein: the front end face of the second ultrahigh molecular polyethylene layer is inwards recessed in the front end face of the pump shell, so that the pump shell and the front end of the second ultrahigh molecular polyethylene layer form a first stepped structure, the front pump cover is in a secondary stepped shaft shape with a large front section and a small rear section, the large diameter section of the front pump cover is in concave-convex fit with the first stepped structure, the small diameter section of the front pump cover extends into the inner side of the second ultrahigh molecular polyethylene layer, and a first sealing ring is arranged between the front end face of the second ultrahigh molecular polyethylene layer and the front pump cover.
8. The gap-adjustable and easily replaceable mortar pump as set forth in claim 6, wherein: the rear end face of the second ultrahigh molecular polyethylene layer is inwards recessed in the rear end face of the pump shell, so that the pump shell and the rear end of the second ultrahigh molecular polyethylene layer form a second stepped structure, the rear pump cover is in a three-stage stepped shaft shape with a small front part and a large rear part, the maximum diameter section of the rear pump cover is located at the rear side of the pump shell, the diameter middle section of the rear pump cover is in concave-convex fit with the second stepped structure, the minimum diameter section of the rear pump cover extends into the inner side of the second ultrahigh molecular polyethylene layer, and a second sealing ring is arranged between the rear end face of the second ultrahigh molecular polyethylene layer and the rear pump cover.
9. The mortar pump of claim 1 or 2, wherein the gap is adjustable and the mortar pump is easy to replace: and a third ultrahigh molecular polyethylene layer is lined on one side surface of the rear pump cover facing the pump shell.
10. The mortar pump of claim 1 or 2, wherein the gap is adjustable and the mortar pump is easy to replace: the middle part of the front pump cover is in a horn mouth shape with a small front part and a big back part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020260471.7U CN211715340U (en) | 2020-03-05 | 2020-03-05 | Mortar pump with adjustable gap and easy replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020260471.7U CN211715340U (en) | 2020-03-05 | 2020-03-05 | Mortar pump with adjustable gap and easy replacement |
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| Publication Number | Publication Date |
|---|---|
| CN211715340U true CN211715340U (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020260471.7U Active CN211715340U (en) | 2020-03-05 | 2020-03-05 | Mortar pump with adjustable gap and easy replacement |
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| CN (1) | CN211715340U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846248A (en) * | 2021-01-07 | 2021-05-28 | 安徽莱恩电泵有限公司 | Semi-open impeller cutting method of self-priming pump |
| CN114810562A (en) * | 2022-05-10 | 2022-07-29 | 浙江永球科技有限公司 | Diaphragm type vacuum pump |
-
2020
- 2020-03-05 CN CN202020260471.7U patent/CN211715340U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846248A (en) * | 2021-01-07 | 2021-05-28 | 安徽莱恩电泵有限公司 | Semi-open impeller cutting method of self-priming pump |
| CN112846248B (en) * | 2021-01-07 | 2021-11-09 | 安徽莱恩电泵有限公司 | Semi-open impeller cutting method of self-priming pump |
| CN114810562A (en) * | 2022-05-10 | 2022-07-29 | 浙江永球科技有限公司 | Diaphragm type vacuum pump |
| CN114810562B (en) * | 2022-05-10 | 2024-02-27 | 浙江永球科技有限公司 | Diaphragm vacuum pump |
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