CN205025813U - Mechanical seal chemical pump - Google Patents
Mechanical seal chemical pump Download PDFInfo
- Publication number
- CN205025813U CN205025813U CN201520788818.4U CN201520788818U CN205025813U CN 205025813 U CN205025813 U CN 205025813U CN 201520788818 U CN201520788818 U CN 201520788818U CN 205025813 U CN205025813 U CN 205025813U
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- Prior art keywords
- pump
- ring
- chamber
- impeller
- pump shaft
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Abstract
The utility model discloses a mechanical seal chemical pump, including the pump shaft, shell subassembly and the impeller that is located the shell subassembly, a spindle sleeve, the rotating seat, the rotating ring, quiet ring sum elastomeric element, the impeller is fixed in the one end of pump shaft, the pump shaft is equipped with the pump shaft shaft shoulder, rotating seat and the equal suit of axle sleeve are outside the pump shaft, rotating seat and axle sleeve link to each other and lie in between the impeller and the pump shaft shaft shoulder, the rotating seat receives the centre gripping of the impeller and the pump shaft shaft shoulder and can together rotate with the axle sleeve, the rotating ring, the equal suit of quiet ring sum elastomeric element is outside the axle sleeve, the one end and the rotating seat of rotating ring meet, the other end of rotating ring and the one end butt of quiet ring, the other end of quiet ring and elastomeric element's one end butt, elastomeric element's the other end and shell subassembly butt. From this, when the seal face received wearing and tearing because of long -time relative rotation, elastomeric element can play the effect of buffering compensation, and elastomeric element's elastic force makes the seal face remain inseparable laminating state throughout. Structural design is reasonable, long service life.
Description
Technical field
The utility model relates to a kind of chemical pump, particularly a kind of mechanical seal chemical pump.
Background technique
The chemical pump of prior art generally includes housing and pump shaft, one end of pump shaft is supported by bearing support, the other end is placed in housing and cover has impeller, on pump shaft, the rear sleeve of impeller has axle sleeve, on axle sleeve, cover has stationary ring, rotating ring, elastic sleeve and sub-propeller successively, rotating ring and stationary ring are closely abutted against and form dynamic cooperation, and rotating ring, elastic sleeve and sub-propeller link together with key each other, are provided with key between sub-propeller and axle sleeve.Drive rotating ring by pump shaft, elastic sleeve rotates together with sub-propeller.The long-term high speed rotating of elastic sleeve is fragile and follow the string, and make the working life of chemical pump not long, sealing is not good.
Model utility content
The purpose of this utility model is the mechanical seal chemical pump providing a kind of long service life, good seal performance.
According to an aspect of the present utility model, provide mechanical seal chemical pump, comprise pump shaft, casing assembly and the impeller being positioned at casing assembly, axle sleeve, rotating seat, rotating ring, stationary ring and elastic member, impeller is fixed on one end of pump shaft, pump shaft is provided with the pump shaft shaft shoulder, rotating seat and axle sleeve are all set in outside pump shaft, rotating seat is connected with axle sleeve and between impeller and the pump shaft shaft shoulder, rotating seat and axle sleeve are subject to the clamping of impeller and the pump shaft shaft shoulder and can together rotate, rotating ring, stationary ring and elastic member are all set in outside axle sleeve, one end of rotating ring connects with rotating seat, the other end of rotating ring abuts with one end of stationary ring, the other end of stationary ring abuts with one end of elastic member, the other end of elastic member abuts with casing assembly.
The beneficial effects of the utility model are: pump shaft rotates and can impeller, axle sleeve, rotating seat and rotating ring together rotate, stationary ring and elastic member do not rotate, a pair friction sealed end face is formed between stationary ring and rotating ring, elastic member pushes against stationary ring makes seal face remain sealing state, when seal face is worn because relatively rotating for a long time, elastic member can play the effect of buffer compensation, and the elastic force of elastic member makes seal face remain the state of fitting tightly.And rotating seat can prevent medium from scratching rotating ring, rotating ring is played a protective role.Reasonable in design, long service life.
In some embodiments, elastic member is spring.Thus, the elastic strain distance of spring is large, and elasticity is strong, long service life.
In some embodiments, seal ring of moving ring is provided with between rotating ring and rotating seat.Thus, can prevent from leaking between medium driven torus and rotating seat.
In some embodiments, casing assembly comprises pump cover, pump case, pump chamber assembly, overcoat and bearing support, pump cover is fixedly connected with pump case assembly and grips pump chamber assembly, pump chamber assembly is set in impeller outer and is fixedly connected with overcoat, coat suit is outer and abut with elastic member in rotating ring and elastic member, bearing sleeve is loaded on outside pump shaft, and bearing support is fixedly connected with pump cover assembly.Thus, casing assembly can play to the parts of its inside the effect supporting and seal.
In some embodiments, stationary ring seal ring is provided with between overcoat and stationary ring.Thus, dielectric leakage can be prevented.
In some embodiments, pump chamber assembly comprises pump chamber and chamber cap, and pump chamber and chamber cap are interlocked and form pump chamber chamber, and impeller is positioned at pump chamber chamber, and pump chamber is provided with material feeding mouth and discharge port, is provided with overcoat seal ring between overcoat and chamber cap.Thus, wheel rotation can attract medium to enter from the material feeding mouth of pump chamber, then sends from discharge port, completes the conveying of medium.
In some embodiments, chamber cap seal ring is provided with between pump chamber and chamber cap.Thus, can prevent medium from leaking between pump chamber and chamber cap.
In some embodiments, put outward and be also provided with pipe joint, overcoat one end has axially inwardly outstanding bead, bead and form containing space between rotating ring and axle sleeve, and pipe joint is communicated with containing space.Thus, elastic member is positioned at containing space, and elastic member one end abuts with rotating ring; the other end abuts with bead, and when occurring to leak, medium can flow into containing space and flow out from pipe joint; can leak and shutdown maintenance by Timeliness coverage, avoid medium to the corrosion of other parts of pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mechanical seal chemical pump of the utility model one mode of execution;
The cooperating structure schematic diagram of the axle sleeve that Fig. 2 is the mechanical seal chemical pump shown in Fig. 1, rotating seat, rotating ring, stationary ring and elastic member.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 and Fig. 2 show schematically show the mechanical seal chemical pump according to a kind of mode of execution of the present utility model.
See figures.1.and.2, mechanical seal chemical pump comprises pump shaft 1, casing assembly 8 and is positioned at the impeller 2 of casing assembly 8, axle sleeve 3, rotating seat 4, rotating ring 5, stationary ring 6 and elastic member 7.One end of pump shaft 1 is positioned at casing assembly 8, and the other end of pump shaft 1 stretches out outside casing assembly 8.
The mode that impeller 2 is threaded connection is fixed on one end of pump shaft 1.Rotating seat 4 and axle sleeve 3 are all set in outside pump shaft 1, and the diameter being positioned at pump shaft 1 stage casing, axle sleeve 3 side increases and forms the pump shaft shaft shoulder 11, and rotating seat 4 and axle sleeve 3 are held between impeller 2 and the pump shaft shaft shoulder 11.Rotating seat 4 is adjacent with impeller 2, is provided with pad between rotating seat 4 and impeller 2.Axle sleeve 3 is adjacent with the pump shaft shaft shoulder 11, is provided with shaft filler washer 10 between axle sleeve 3 and the pump shaft shaft shoulder 11.When pump shaft 1 rotates, can impeller 2 and the rotating seat 4 be held between impeller 2 with the pump shaft shaft shoulder 11 rotate together with axle sleeve 3.
Rotating ring 5, stationary ring 6 and elastic member 7 are all set in outside axle sleeve 3, and one end of rotating ring 5 connects with rotating seat 4, is provided with seal ring of moving ring 91 between rotating ring 5 and rotating seat 4.The outer rim of rotating seat 4 bends to the direction of rotating ring 5 and surrounds the side of rotating ring 5, can be scratched by the large particle in medium by anti-stop ring 5.The other end of rotating ring 5 abuts with one end of stationary ring 6, and the other end of stationary ring 6 abuts with one end of elastic member 7, and the other end of elastic member 7 abuts with casing assembly 8.Rotating seat 4 can drive rotating ring 5 to rotate together, and stationary ring 6 maintains static, and the surface of contact between rotating ring 5 and stationary ring 6 forms a pair friction sealed end face, relies on the elastic force of elastic member 7 friction sealed end face to be fitted tightly, to prevent dielectric leakage.After the surface abrasion of friction sealed end face, can realize compensating under the promotion of the elastic force of elastic member 7, guarantee that friction sealed end face fits tightly all the time.
Above-mentioned elastic member 7 is preferably spring.The elastic force of spring is strong, and long service life also can realize comparatively large deformation, makes the long service life of mechanical seal chemical pump of the present utility model and good seal performance.
Casing assembly 8 comprises pump case 81, pump cover 82, pump chamber assembly 83, overcoat 84, bearing support 85 and bonnet 86.Pump case 81 is fixedly connected with pump cover 82 screw thread and grips pump chamber assembly 83, and it is outer and be fixedly connected with overcoat 84 screw thread that pump chamber assembly 83 is set in impeller 2.Overcoat 84 is set in outside rotating ring 5 and elastic member 7, and overcoat 84 one end has axially inwardly outstanding bead 841, and bead 841 abuts with elastic member 7.Bead 841 and form the containing space 87 holding elastic member 7 between rotating ring 5 and axle sleeve 3.Bearing support 85 is set in outside pump shaft 1, is provided with bearing 86 between bearing support 85 and pump shaft 1, and bearing support 85 and pump shaft 1 are rotatably connected by bearing 25 and can to realize bearing support 85 relative fixing with pump shaft 1 position in the axial direction.One end of bearing support 85 is fixedly connected with pump chamber assembly 83 screw thread, and the other end of bearing support 85 is fixedly connected with rear pressing cover 86 screw thread.
Overcoat 84 is also provided with pipe joint 88, and pipe joint 88 is communicated with containing space 87.When pump occurs to leak, medium can flow out from pipe joint 88, can leak by Timeliness coverage, thus shutdown maintenance, avoid medium to the corrosion of other parts of pump.
Stationary ring seal ring 93 is provided with between overcoat 84 and stationary ring 6.Pump chamber assembly 83 comprises pump chamber 831 and chamber cap 832, and pump chamber 831 and chamber cap 832 are interlocked and form pump chamber chamber 833, be provided with chamber cap seal ring 94, be provided with overcoat seal ring 92 between overcoat 84 and chamber cap 832 between pump chamber 831 and chamber cap 832.Impeller 2 is positioned at pump chamber chamber 833, and pump chamber 831 is provided with material feeding mouth 834 and discharge port 835, and material feeding mouth 834 is just to the central position of impeller 2, and discharge port 835 is corresponding with the marginal position of impeller 2.Pump shaft 1 impeller 2 is rotated and is produced centrifugal force and medium can be made to enter after in pump chamber chamber 833 from material feeding mouth 834 be sent from discharge port 835 again.
The reasonable in design of mechanical seal chemical pump of the present utility model, by the perfect cooperation of each parts, makes the good seal performance of pump, long service life.
Above-described is only mode of executions more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (8)
1. mechanical seal chemical pump, it is characterized in that: comprise pump shaft (1), casing assembly (8) and be positioned at the impeller (2) of casing assembly (8), axle sleeve (3), rotating seat (4), rotating ring (5), stationary ring (6) and elastic member (7), described impeller (2) is fixed on one end of pump shaft (1), described pump shaft (1) is provided with the pump shaft shaft shoulder (11), described rotating seat (4) and axle sleeve (3) are all set in pump shaft (1) outward, described rotating seat (4) is connected with axle sleeve (3) and is positioned between impeller (2) and the pump shaft shaft shoulder (11), described rotating ring (5), stationary ring (6) and elastic member (7) are all set in axle sleeve (3) outward, one end of described rotating ring (5) connects with rotating seat (4), the other end of described rotating ring (5) abuts with one end of stationary ring (6), the other end of described stationary ring (6) abuts with one end of elastic member (7), the other end of described elastic member (7) abuts with casing assembly (8).
2. mechanical seal chemical pump according to claim 1, is characterized in that: described elastic member (7) is spring.
3. mechanical seal chemical pump according to claim 1, is characterized in that: be provided with seal ring of moving ring (91) between described rotating ring (5) and rotating seat (4).
4. mechanical seal chemical pump according to claim 1, it is characterized in that: described casing assembly (8) comprises pump case (81), pump cover (82), pump chamber assembly (83), overcoat (84) and bearing support (85), described pump case (81) is fixedly connected with pump cover (82) and grips pump chamber assembly (83), described pump chamber assembly (83) is set in impeller (2) and be fixedly connected with overcoat (84) outward, described overcoat (84) is set in elastic member (7) and abut with elastic member (7) outward, described bearing support (85) is set in pump shaft (1) outward, described bearing support (85) is fixedly connected with pump chamber assembly (83).
5. mechanical seal chemical pump according to claim 4, is characterized in that: be provided with stationary ring seal ring (93) between described overcoat (84) and stationary ring (6).
6. mechanical seal chemical pump according to claim 4, it is characterized in that: described pump chamber assembly (83) comprises pump chamber (831) and chamber cap (832), described pump chamber (831) and chamber cap (832) are interlocked and form pump chamber chamber (833), described impeller (2) is positioned at pump chamber chamber (833), described pump chamber (831) is provided with material feeding mouth (834) and discharge port (835), is provided with overcoat seal ring (92) between described overcoat (84) and chamber cap (832).
7. mechanical seal chemical pump according to claim 6, is characterized in that: be provided with chamber cap seal ring (94) between described pump chamber (831) and chamber cap (832).
8. mechanical seal chemical pump according to claim 4, it is characterized in that: described overcoat (84) is also provided with pipe joint (88), described overcoat (84) one end has axially inwardly outstanding bead (841), bead (841) and form containing space (87) between rotating ring (5) and axle sleeve (3), described pipe joint (88) is communicated with containing space (87).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520788818.4U CN205025813U (en) | 2015-10-12 | 2015-10-12 | Mechanical seal chemical pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520788818.4U CN205025813U (en) | 2015-10-12 | 2015-10-12 | Mechanical seal chemical pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025813U true CN205025813U (en) | 2016-02-10 |
Family
ID=55258351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520788818.4U Active CN205025813U (en) | 2015-10-12 | 2015-10-12 | Mechanical seal chemical pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357156A (en) * | 2021-07-19 | 2021-09-07 | 江苏维尔特泵业有限公司 | Novel inside and outside multilayer seal cooling hot water circulating pump |
-
2015
- 2015-10-12 CN CN201520788818.4U patent/CN205025813U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357156A (en) * | 2021-07-19 | 2021-09-07 | 江苏维尔特泵业有限公司 | Novel inside and outside multilayer seal cooling hot water circulating pump |
| CN113357156B (en) * | 2021-07-19 | 2024-04-12 | 江苏维尔特泵业有限公司 | Inside and outside multilayer sealed cooling hot water circulating pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |