CN201265493Y

CN201265493Y - Plunger pump

Info

Publication number: CN201265493Y
Application number: CNU2008201651809U
Authority: CN
Inventors: 阮孟照
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2009-07-01
Anticipated expiration: 2018-09-28

Abstract

The utility model relates to a plunger pump which comprises a pump body and a plunger piston. The pump body is provided with a water inlet and a water outlet; the right side and the left side of the pump body are provided with plunger piston through holes as well as water outlet holes and water inlet holes; the water outlet holes and the water inlet holes are respectively communicated with the water outlet and the water inlet; the right side and the left side of the pump body are respectively fixedly connected with a right water suction chamber and a left water suction chamber; the water suction chambers are provided with water suction cavities, water inlet channels and water outlet channels; the water suction cavities of the right and the left water suction chambers are communicated with the plunger piston through holes and are coaxially arranged; the plunger piston is arranged in a channel formed by the plunger piston through holes and the water suction cavities; the front of the pump body is provided with a bearing hole which is communicated with the plunger piston through holes; the position of the plunger piston corresponding to the bearing hole is provided with a drive groove; a positioning bearing is arranged in the bearing hole and is sleeved on a crankshaft; the front end of the crankshaft is connected with a power plant, and the rear end of the crankshaft is sleeved with a drive bearing which is contained in the drive groove. The utility model has the advantages of small volume, simple structure and light weight.

Description

A kind of plunger pump

Technical field

The utility model relates to a kind of plunger pump.

Background technique

Plunger pump is used very extensive in daily life, present plunger pump work realizes supercharging by the plunger to-and-fro motion, plunger returns to move a pump housing work done once, in order to realize high-power and steady output, common way is to adopt a plurality of plunger cooperatings at present, will inevitably make the internal structure of pump complicated more like this, and volume is bigger, production cost of products is higher, and the reliability of baroque work will reduce.

The model utility content

The utility model provides a kind of plunger pump, the plunger to-and-fro motion once, twice, plunger of plunger pump work done can be two cylinder body work simultaneously, has little, simple in structure, the lightweight characteristics of volume.

The utility model is achieved in that

A kind of plunger pump comprises the pump housing and plunger, on the pump housing, be provided with water intake and water outlet, it is characterized in that: on described pump housing left and right directions, have the plunger through hole, be equipped with osculum and water inlet in the left and right sides of the pump housing, osculum and water inlet are connected with water intake and water outlet respectively, the left and right sides at the pump housing is fixed with left and right sides suction chamber respectively, suction chamber is provided with water sucting cavity, intake tunnel and exhalant canal, the two-port of intake tunnel is communicated with osculum and water sucting cavity respectively, between intake tunnel and osculum, be provided with one-way valve, the two-port of exhalant canal is connected with water sucting cavity and water inlet respectively, between exhalant canal and water inlet, be provided with one-way valve, and the water sucting cavity of left and right sides suction chamber communicates with the plunger through hole and coaxial setting, plunger is placed in the plunger through hole and water sucting cavity is formed in the passage, have a bearing hole that communicates with the plunger through hole in the place ahead of the pump housing, on position corresponding on the plunger, have driver slot with bearing hole, be provided with positioning bearing in the bearing hole, positioning bearing is socketed on the bent axle, the front end of bent axle connects with power plant, the rear end of bent axle also is socketed with driving bearing, and driving bearing can just be placed in the above-mentioned driver slot.

Driver slot both sides at described plunger all are set with oil sealing, also are provided with draining ring, H RunddichtringO and V-shaped seal ring from oil sealing to both sides, and plunger is by keeping sealing between oil sealing and seal ring and plunger through hole and the water sucting cavity.

Also be provided with hydraulic control valve on the described pump housing, the water intake of hydraulic control valve is communicated with water inlet or water outlet, and the backwater mouth of hydraulic control valve is communicated with water intake or osculum.

Maximum characteristics of the present utility model are exactly crank-driven plunger left and right sides to-and-fro motion one time, and twice, plunger of pump housing acting plays two effect, such largest benefit is under the situation of suitable output power, can the volume of plunger pump is littler, structure is also more simple, and weight is lighter.

Description of drawings

Fig. 1, structural representation of the present utility model.

Embodiment

As shown in Figure 1, a kind of plunger pump comprises the pump housing 1 and plunger 2, water intake and water outlet are arranged on the rear of the pump housing 1, water intake and water outlet place are provided with water supply connector 11 and water output connector 12 respectively, on the described pump housing 1 left and right directions, have plunger through hole 13, be equipped with osculum 14 and water inlet 15 in the left and right sides of the pump housing 1, osculum 14 and water inlet 15 are connected with water intake and water outlet respectively, the left and right sides at the pump housing 1 is fixed with left suction chamber 3 and right suction chamber 4 by bolt, a left side, right suction chamber 3, all be provided with water sucting cavity 31 in 4, intake tunnel 32 and exhalant canal 33, the two-port of intake tunnel 32 is communicated with osculum 14 and water sucting cavity 31 respectively, between intake tunnel 32 and osculum 14, be provided with one-way valve 30, the two-port of exhalant canal 33 is connected with water sucting cavity 31 and water inlet 15 respectively, between exhalant canal 33 and water inlet 15, be provided with one-way valve 30, and left and right sides suction chamber 3,4 water sucting cavity 31 communicates with plunger through hole 13 and coaxial setting, plunger 2 is placed in the passage of plunger through hole 13 and water sucting cavity 31 compositions, have a bearing hole 14 that communicates with plunger through hole 13 in the place ahead of the pump housing 1, be provided with positioning bearing 51 in the bearing hole 14, positioning bearing 51 is socketed on the bent axle 52, the front end of bent axle 52 connects with power plant, the rear end of bent axle 52 also is socketed with driving bearing 53, on position corresponding on the plunger 2, have driver slot 21 with bearing hole 14, driving bearing 53 can just be placed in the above-mentioned driver slot 21, driver slot 21 both sides at described plunger 2 all are set with oil sealing 22, also be provided with draining ring 23 from oil sealing 22 to plunger 2 both sides, H RunddichtringO 24 and V-shaped seal ring 25, plunger 2 is by oil sealing and seal ring and plunger through hole 13 and water sucting cavity 31 maintenance excellent sealings, above the described pump housing 1, also be provided with hydraulic control valve 6, the water intake of hydraulic control valve 6 is communicated with water inlet or water outlet, the backwater mouth of hydraulic control valve 6 is communicated with water intake or osculum, above the pump housing 1, also be provided with grease cup 7, grease cup 7 is communicated with plunger through hole 13 and bearing hole 14 by the butter runner, also has a pressure gauge 8 to be arranged on water output connector 12 places.

Working procedure of the present utility model is such: power plant drive bent axle 52 and rotate, bent axle 52 drives the axle center rotation of the driving bearing 53 of rear end around bent axle 2, drive plunger 2 left and right sides to-and-fro motion during driving bearing 53 rotations, when plunger moves from left to right, current are from the osculum 14 on the water intake flow path pump housing left side of the pump housing, pass the one-way valve 30 between osculum 14 and the intake tunnel 32, enter in the water sucting cavity 31 on the left side, and meanwhile, the water sucting cavity 30 of right suction chamber 4 is under the extruding of plunger 2, the current of high pressure are pressed to water inlet 15 from exhalant canal 33, and the output of flow path water outlet; Bent axle 52 drives driving bearing 53 and whenever rotates a circle, plunger 2 meeting to-and-fro motion once, and each work done of two cylinders of left and right sides suction chamber 3,4 once, the work done that quite common plunger is twice has improved working efficiency, the plunger pump of therefore suitable power, common relatively its volume of plunger pump of the utility model can be done forr a short time, structure is also simple relatively simultaneously, and weight is lighter, has saved material and has reduced cost.

The utility model critical piece is the pump housing, plunger and left and right sides suction chamber, when plunger pump breaks down, only needs left and right sides suction chamber is unloaded and can keep in repair from the pump housing, and it is more convenient to keep in repair existing relatively common plunger pump.

Claims

1, a kind of plunger pump comprises the pump housing and plunger, on the pump housing, be provided with water intake and water outlet, it is characterized in that: on described pump housing left and right directions, have the plunger through hole, be equipped with osculum and water inlet in the left and right sides of the pump housing, osculum and water inlet are connected with water intake and water outlet respectively, the left and right sides at the pump housing is fixed with a left side respectively, right suction chamber, suction chamber is provided with water sucting cavity, intake tunnel and exhalant canal, the two-port of intake tunnel is communicated with osculum and water sucting cavity respectively, between intake tunnel and osculum, be provided with one-way valve, the two-port of exhalant canal is connected with water sucting cavity and water inlet respectively, between exhalant canal and water inlet, be provided with one-way valve, and the water sucting cavity of left and right sides suction chamber communicates with the plunger through hole and coaxial setting, plunger is placed in the plunger through hole and water sucting cavity is formed in the passage, have a bearing hole that communicates with the plunger through hole in the place ahead of the pump housing, on position corresponding on the plunger, have driver slot with bearing hole, be provided with positioning bearing in the bearing hole, positioning bearing is socketed on the bent axle, the front end of bent axle connects with power plant, the rear end of bent axle also is socketed with driving bearing, and driving bearing can just be placed in the above-mentioned driver slot.

2, a kind of plunger pump as claimed in claim 1, it is characterized in that: the driver slot both sides at described plunger all are set with oil sealing, also be provided with draining ring, H RunddichtringO and V-shaped seal ring from oil sealing to both sides, plunger is by keeping sealing between oil sealing and seal ring and plunger through hole and the water sucting cavity.

3, a kind of plunger pump as claimed in claim 1 is characterized in that: also be provided with hydraulic control valve on the described pump housing, the water intake of hydraulic control valve is communicated with water inlet or water outlet, and the backwater mouth of hydraulic control valve is communicated with osculum or water intake.