CN101634295B - High-performance triplex plunger pump sealing mechanism - Google Patents
High-performance triplex plunger pump sealing mechanism Download PDFInfo
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- CN101634295B CN101634295B CN200810120113XA CN200810120113A CN101634295B CN 101634295 B CN101634295 B CN 101634295B CN 200810120113X A CN200810120113X A CN 200810120113XA CN 200810120113 A CN200810120113 A CN 200810120113A CN 101634295 B CN101634295 B CN 101634295B
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Abstract
The invention discloses a high-performance triplex plunger pump sealing mechanism, which comprises a pump body, wherein the pump body is provided with a plunger cavity the inside of which is provided with a plunger connected with a connecting rod; the connecting rod is sleeved on a crank which is driven by power; the outside of the crank is provided with a crankcase and a crankcase cover; the upper part of the plunger cavity is communicated with a water outlet cavity; the inside of the water outlet cavity is provided with a water outlet one-way valve which is connected with an air vessel; the lower part of the plunger cavity is communicated with a water inlet cavity; the inside of the water inlet cavity is provided with a water inlet one-way valve; and a combined sealing mechanism is arranged between the pump body and the plunger. The high-performance triplex plunger pump sealing mechanism is characterized in that: the pump body is integral; the combined sealing mechanism between the pump body and the plunger comprises a sealed cavity arranged outside the plunger cavity of the pump body; the inner wall of the sealed cavity is provided with a support gasket; the outside of the support gasket is provided with a convex ring which is matched with an opening of a Y-type primary water seal; the Y-type primary water seal is contacted with a rear guide and support ring through a support ring; the inside of the rear guide and support ring is sealed with the plunger through a Y-type secondary water seal; the outside of the rear guide and support ring is sealed with the pump body through a sealing ring; and the outer end of the rear guide and support ring is contacted with the end face of the crankcase.
Description
Technical field
The present invention relates to high-performance triplex plunger pump sealing mechanism, as the hydraulic power of atomizing sprayer or washing machine, the atomizing sprayer aspect is mainly used in the spraying of agricultural, the humidification of spraying water, control worm and industry, cooling, dedusting etc.; The washing machine aspect can be used for cleaning of vehicle and ground, metope etc.
Background technique
The kind of plunger pump is a lot, generally can be divided into two classes, and a class is the low-pressure plunger pump, if the low-pressure plunger pump is supporting owing to can not satisfy the atomizing requirement of ejection droplet as atomizing sprayer, can cause the effective rate of utilization of agricultural chemicals to reduce significantly; If with washing machine supporting because of the underpressure cleaning performance poor.Another kind of is the high pressure type plunger pump, such pump can overcome the low-pressure plunger pump because the shortcoming that underpressure exists, but the major defect that existing high-pressure plunger pump exists is:, the pump housing is that multi-part connects, manyly connect together, need many one sealing mechanisms, the hidden danger that will exist many places to leak; Two, each parts of the pump housing are fixed by fastening screw, and screw is easily loosening, thereby causes leakage; The 3rd, the sealing mechanism in the pump housing adopts V-seal spare, because V-seal spare is the line contact, area of contact is few, therefore general employing triple (promptly three layers) sealing, but complex structure, and because the number of plies is many, mutual friction between the Sealing is big, heating easily, and load is heavy.Three-layer sealed degree of accuracy is difficult to hold by screw adjusting gap, and loosening easily, and sealing effect is poor.
Summary of the invention
The objective of the invention is in order to overcome the shortcoming that prior art exists, a kind of sealing part that reduces the whole pump housing is provided, reduce and leak, sealing configuration in the cooperation place of plunger and pump housing plunger cavity is reasonable, easy for installation, frictional force is little, and load is light, and the location is reliable, is difficult for producing loosening high-performance triplex plunger pump sealing mechanism.
The technological scheme of high-performance triplex plunger pump sealing mechanism of the present invention is: comprise the pump housing, the pump housing is shaped on plunger cavity, plunger is installed in the plunger cavity, plunger connects connecting rod, and connecting rod is enclosed within on the bent axle, and bent axle is driven by power, bent axle has crankcase and crankcase cover outward, communicate with water chamber on the plunger cavity, water one-way valve is installed out in the water chamber, go out water one-way valve and connect air tank; Plunger cavity communicates with water-inlet cavity down, be installed into water one-way valve in the water-inlet cavity, combination seal mechanism is installed between the pump housing and plunger, it is characterized in that the described pump housing is an integrated type, combination seal mechanism between the pump housing and the plunger comprises that the plunger cavity of the pump housing is shaped on Seal cage outward, the Seal cage inwall is equipped with supporting bead, the outside of supporting bead is shaped on bulge loop, bulge loop matches with the opening of Y type master water seal, Y type master water seal through supporting ring with after the guidance ring contact, seal mutually with plunger through the secondary water seal of Y type in the back guidance ring, back guidance ring is outer to be sealed with the pump housing mutually through seal ring, and the outer end of back guidance ring contacts with the crankcase end face.
High-performance triplex plunger pump sealing mechanism of the present invention, the integrated type pump housing does not have the joint, reduces the sealed member of complete machine, thereby avoids the leakage of sealing part, and saves fastening piece, and is easy for installation, the intensity height; Y type Sealing is all adopted in main water seal and secondary water seal, adopt V-seal spare to compare with prior art, the afterbody mechanical strength height of Y type Sealing, expansionary force is big, good sealing effect, therefore can adopt single Sealing to get final product, simple in structure, easy for installation, particularly main water seal is carried out the location, front and back respectively by supporting bead and supporting ring, can put in place after the once mounting, need not to regulate; Frictional force between main water seal and secondary water seal and the plunger is little, and load is light; Seal mutually with plunger through secondary water seal in the back guidance ring, back guidance ring is outer to be sealed with the pump housing mutually through seal ring, can realize secondary seal, good sealing effect; Back guidance ring contacts with the crankcase end face, is difficult for producing becoming flexible, and makes the location reliable.
High-performance triplex plunger pump sealing mechanism of the present invention, its described three water inlet one-way valves with go out the water-inlet cavity and water chamber that water one-way valve lays respectively at corresponding combined cylinder-block-crankcase unit in, the pressure reduction that can avoid plunger cavity (being booster cavity) the internal cause water yield between water-inlet cavity and the water chamber to run off and cause, three place's booster cavity internal pressures are equated, reduce power loss, good stability, the working life of the prolongation pump housing.Each water inlet one-way valve in its described three cylinders and go out water one-way valve and locate separately through plug screw respectively can load and unload separately during maintenance, and not influence the water inlet one-way valve of other two cylinder bodies and go out water one-way valve, and is easy to operate.The major part of its described connecting rod is made integral body, with prior art (make two slit bamboo or chopped woods of symmetry usually, again with two slit bamboo or chopped woods to inserting, fix through fastening piece) compare, the integrated type connecting rod is easy to processing, intensity is good, the precision height also can omit assembling and regulate technology, and is easy for installation.Its described crankshaft eccentric is 6.5 millimeters apart from D, and correspondence course is 13 millimeters, and stroke is lacked and the rotating speed height, makes load light, stable performance.The outer wall of its crankcase is shaped on radiating fin, can reduce the oil temperature in the crankcase, and it is faster to dispel the heat, and radiating fin also can be used as stiffening rib usefulness, increases the mechanical strength of crankcase.One side of its crankcase is provided with the connection end face, connects end face and is connected with power (as petrol engine, diesel engine or motor etc.), and bent axle can directly be connected with power during use, also can pass through the belt pulley transmission, and applying flexible is applied widely.
Description of drawings
Fig. 1 is the A-A cross-sectional schematic of high-performance triplex plunger pump sealing mechanism of the present invention;
Fig. 2 is the B-B cross-sectional schematic of high-performance triplex plunger pump sealing mechanism of the present invention;
Fig. 3 is that the C of high-performance triplex plunger pump sealing mechanism of the present invention is to structural representation.
Embodiment
The present invention relates to high-performance triplex plunger pump sealing mechanism, shown in Figure 3 as Fig. 1 one, comprise the pump housing 18, the pump housing is shaped on plunger cavity 181, plunger 4 is installed in the plunger cavity, plunger connects connecting rod 3, and connecting rod is enclosed within on the bent axle 27, and bent axle is driven by power, crankcase 2 and crankcase cover 1 are arranged outside the bent axle 27, communicate with water chamber 182 on the plunger cavity 181, water one-way valve 26 is installed out in the water chamber, go out water one-way valve and connect air tank 43; Plunger cavity 181 times communicates with water-inlet cavity 183, be installed into water one-way valve 28 in the water-inlet cavity 183, combination seal mechanism is installed between the pump housing 18 and plunger 4, it is characterized in that the described pump housing 18 is integrated types, combination seal mechanism between the pump housing 18 and the plunger 4 comprises the plunger cavity 181 outer Seal cages 185 that are shaped on of the pump housing, the Seal cage inwall is equipped with supporting bead 11, the outside of supporting bead 11 is shaped on bulge loop 111, bulge loop 111 matches with the opening of Y type master water seal 10, Y type master water seal 10 through supporting ring 9 with after guidance ring 6 contact, seal mutually with plunger 4 through the secondary water seal 8 of Y type in the back guidance ring, seal mutually with the pump housing 18 through seal ring 7 outside the back guidance ring 6, the outer end of back guidance ring 6 contacts with crankcase end face 25.After the pump housing 18 of this programme is made integral body, do not have the joint, reduce the sealed member of complete machine, thereby avoid the leakage of sealing part, and save fastening piece, easy for installation, the intensity height; Y type Sealing is all adopted in main water seal 10 and secondary water seal 8, adopt V-seal spare to compare with prior art, the afterbody mechanical strength height of Y type Sealing, expansionary force is big, good sealing effect, therefore can adopt single Sealing to get final product, simple in structure, easy for installation, particularly main water seal 10 is carried out the location, front and back respectively by supporting bead 11 and supporting ring 9, can put in place after the once mounting, need not to regulate; Frictional force between main water seal 10 and secondary water seal 8 and the plunger 4 is little, and load is light; Seal mutually with plunger 4 through secondary water seal 8 in the back guidance ring 6, seal mutually with the pump housing 18 through seal ring 7 outside the back guidance ring 6, can realize secondary seal, good sealing effect; Back guidance ring 6 contacts with crankcase 2 end faces, is difficult for producing becoming flexible, and makes the location reliable.In it is characterized in that described three water inlet one-way valves 28 and going out the water-inlet cavity 183 and water chamber 182 that water one-way valve 26 lays respectively at corresponding combined cylinder-block-crankcase unit, the pressure reduction that can avoid plunger cavity 181 (being booster cavity) the internal cause water yield between water-inlet cavity 183 and the water chamber 182 to run off and cause, three place's booster cavity internal pressures are equated, reduce power loss, good stability, the working life of the prolongation pump housing.Each water inlet one-way valve 28 in its described three pump housings and go out water one-way valve 26 and locate separately through plug screw 29 respectively can load and unload separately during maintenance, and the water inlet one-way valve that does not influence other two cylinder bodies with go out water one-way valve, easy to operate.The major part of its described connecting rod 3 is made integrated type, with prior art (make two slit bamboo or chopped woods of symmetry usually, again with two slit bamboo or chopped woods to inserting, fix through fastening piece) compare, the integrated type connecting rod is easy to processing, intensity is good, the precision height also can omit assembling and regulate technology, and is easy for installation.Its described crankshaft eccentric is 6.5 millimeters apart from D, and correspondence course is 13 millimeters, and stroke is lacked and the rotating speed height, makes load light, stable performance.The outer wall of its crankcase 2 is shaped on radiating fin 21, can reduce the oil temperature in the crankcase 2, and it is faster to dispel the heat, and radiating fin 21 also can be used as stiffening rib usefulness, increases the mechanical strength of crankcase.One side of its crankcase 2 is provided with and connects end face 22, connects end face and is connected with power (as petrol engine, diesel engine or motor etc.), and bent axle can directly be connected with power during use, also can pass through the belt pulley transmission, and applying flexible is applied widely.
Claims (7)
1. high-performance triplex plunger pump sealing mechanism, comprise the pump housing (18), the pump housing is shaped on plunger cavity (181), and plunger (4) is installed in the plunger cavity, and plunger connects connecting rod (3), connecting rod is enclosed within on the bent axle (27), bent axle is driven by power, and crankcase (2) and crankcase cover (1) are arranged outside the bent axle (27), and plunger cavity (181) is gone up and communicated with water chamber (182), water one-way valve (26) is installed out in the water chamber, is gone out water one-way valve and connect air tank (43); Plunger cavity (181) communicates with water-inlet cavity (183) down, be installed into water one-way valve (28) in the water-inlet cavity (183), combination seal mechanism is installed between the pump housing (18) and plunger (4), it is characterized in that the described pump housing (18) is an integrated type, combination seal mechanism between the pump housing (18) and the plunger (4) comprises the outer Seal cage (185) that is shaped on of the plunger cavity (181) of the pump housing, the Seal cage inwall is equipped with supporting bead (11), the outside of supporting bead (11) is shaped on bulge loop (111), bulge loop (111) matches with the opening of Y type master water seal (10), Y type master water seal (10) through supporting ring (9) with after guidance ring (6) contact, seal mutually with plunger (4) through the secondary water seal of Y type (8) in the back guidance ring, back guidance ring (6) is outer to be sealed with the pump housing (18) mutually through seal ring (7), and the outer end of back guidance ring (6) contacts with crankcase end face (25).
2. high-performance triplex plunger pump sealing mechanism as claimed in claim 1 is in it is characterized in that three water inlet one-way valves (28) and going out the water-inlet cavity (183) and water chamber (182) that water one-way valve (26) lays respectively at corresponding combined cylinder-block-crankcase unit.
3. high-performance triplex plunger pump sealing mechanism as claimed in claim 1 is characterized in that each water inlet one-way valve (28) in described three cylinders and goes out water one-way valve (26) locating separately through plug screw (29) respectively.
4. high-performance triplex plunger pump sealing mechanism as claimed in claim 1 is characterized in that the major part of described connecting rod (3) is made integral body.
5. high-performance triplex plunger pump sealing mechanism as claimed in claim 1 is characterized in that described crankshaft eccentric is 6.5 millimeters apart from (D).
6. high-performance triplex plunger pump sealing mechanism as claimed in claim 1 is characterized in that the outer wall of crankcase (2) is shaped on radiating fin (21).
7. high-performance triplex plunger pump sealing mechanism as claimed in claim 1 is characterized in that a side of crankcase (2) is provided with connection end face (22), connects end face and is connected with power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810120113XA CN101634295B (en) | 2008-07-21 | 2008-07-21 | High-performance triplex plunger pump sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810120113XA CN101634295B (en) | 2008-07-21 | 2008-07-21 | High-performance triplex plunger pump sealing mechanism |
Publications (2)
| Publication Number | Publication Date |
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| CN101634295A CN101634295A (en) | 2010-01-27 |
| CN101634295B true CN101634295B (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810120113XA Active CN101634295B (en) | 2008-07-21 | 2008-07-21 | High-performance triplex plunger pump sealing mechanism |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012203931A1 (en) * | 2011-08-02 | 2013-02-07 | Continental Teves Ag & Co. Ohg | piston pump |
| CN103603796A (en) * | 2013-09-27 | 2014-02-26 | 潘建民 | Integrated intake chamber and drainage chamber combination for plunger pump |
| WO2019155590A1 (en) * | 2018-02-08 | 2019-08-15 | 株式会社イズミフードマシナリ | Plunger pump |
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| CN101634295A (en) | 2010-01-27 |
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Application publication date: 20100127 Assignee: China FST Co., Ltd. Assignor: Liang Xiaoen Contract record no.: 2013330000263 Denomination of invention: High-performance triplex plunger pump sealing mechanism Granted publication date: 20111123 License type: Exclusive License Record date: 20130813 |
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Effective date of registration: 20170908 Address after: Taizhou City, Zhejiang province 318050 Luqiao Jinqing Town Village Patentee after: China FST Co., Ltd. Address before: Taizhou City, Zhejiang province 318058 Luqiao Jinqing Wenchang Road No. 418 Patentee before: Liang Xiaoen |
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