CN204458235U - Radial plunger pump - Google Patents
Radial plunger pump Download PDFInfo
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- CN204458235U CN204458235U CN201420814691.4U CN201420814691U CN204458235U CN 204458235 U CN204458235 U CN 204458235U CN 201420814691 U CN201420814691 U CN 201420814691U CN 204458235 U CN204458235 U CN 204458235U
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- cylinder body
- plunger
- pintle
- pump
- transmission shaft
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Abstract
This patent relates to a kind of radial plunger pump, comprise the fuel tank connected successively, main pump body and pump head, the transmission shaft be connected with motor is installed in pump head, it is characterized in that: main pump body internal fixtion installs pintle, outside pintle, cylinder body is housed, cylinder ends is provided with the rectangular boss floating connection of rectangular recess and pump head intermediate solid drive shaft, pintle is provided with packing ring, plunger is slidably fitted with in cylinder body, the glide direction of plunger on cylinder body is perpendicular to pintle, cylinder body is also provided with tapered coil spring first, one end of tapered coil spring first is against on cylinder body, the other end of tapered coil spring first is stuck in the groove of plunger, the exterior edge face of plunger is against on bearing, described bearing and cylinder body eccentric setting.Advantage is: this patent effectively reduces power loss, system compact.
Description
Technical field
The invention belongs to plunger pump technique field, particularly relates to a kind of radial plunger pump.
Background technique
At present, traditional radial plunger pump is all be fixedly installed into, oil return hydraulic fluid port, single direction rotation.All need the elements such as oil hydraulic pump, safety valve, selector valve, fuel tank to couple together formation system by valve block, hydraulic pipe line etc. when forming hydraulic power unit.Such power loss is large, installation is complicated, cost is high.
Summary of the invention
The invention provides a kind of radial plunger pump for solving in known technology the technical problem that exists, and this radial plunger pump effectively reduces power loss, system compact.
A kind of radial plunger pump, comprise the fuel tank connected successively, main pump body and pump head, the transmission shaft be connected with motor is installed in pump head, it is characterized in that: main pump body internal fixtion installs pintle, outside pintle, cylinder body is housed, cylinder ends is provided with the rectangular boss floating connection of rectangular recess and pump head intermediate solid drive shaft, pintle is provided with packing ring, plunger is slidably fitted with in cylinder body, the glide direction of plunger on cylinder body is perpendicular to pintle, cylinder body is also provided with tapered auger first spring, one end of tapered auger first spring is against on cylinder body, the other end of tapered auger first spring is stuck in the groove of plunger, the sphere of plunger is against on bearing, described bearing and cylinder body eccentric setting.
The invention can also by the following technical solutions:
Preferred technological scheme, additional technical feature is: the left end of described transmission shaft establishes rectangular boss, the both sides of rectangular boss are provided with 2 planes, two planes are parallel to each other and be all parallel to the axis of transmission shaft, rectangular boss is embedded in the rectangular recess of cylinder body right side, and the rectangular recess of cylinder body right side is perpendicular to the axis of transmission shaft.
Preferred technological scheme, additional technical feature is: described main pump body is provided with safety valve, safety valve comprises valve seat, steel ball is provided with in valve seat, the upper end of steel ball is against on spring seat, the upper end of spring seat is against on second spring, and the upper end of second spring is against in adjusting screw, and the top of adjusting screw is provided with acorn nut and hexagon nut.
The advantage that the invention has and good effect are:
Because the invention adopts technique scheme, this pump integrates safety valve, Fill valve, fuel tank, and can realize the rotation of positive and negative both direction, the object not needing the situation of selector valve to be issued to oil circuit commutation.A hydraulic power unit can be formed after only needing during use to be connected with motor.Effectively reduce power loss, system compact, cost are low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention;
Fig. 2 is the A-A sectional view of Fig. 1.
In figure:
2, fuel tank; 3, air-strainer; 4, main pump body; 5, resilient key; 6, pintle; 7, packing ring; 8, bearing; 9, O type circle; 10, first spring; 11, plunger; 12, cylinder body; 13, acorn nut; 14, hexagon nut; 15, combination mat; 16, adjusting screw; 17, second spring; 18, spring seat; 19, first steel ball; 20, valve seat; 22, the third spring; 23, second steel ball; 25, transmission shaft; 26, flat key; 27, outside framework oil seal; 28, pump head; 29, circlip for hole; 30, circlip for shaft; 31, bearing baffle ring; 32, rolling bearing.
Embodiment
For innovation and creation content, the Characteristic of the invention can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1,
A kind of radial plunger pump, comprises the fuel tank 2, main pump body 4 and the pump head 28 that connect successively, fuel tank 2 is equipped with air-strainer 3.Roll in pump head and be provided with the transmission shaft 25 be connected with motor by flat key 26, pump head 28 is built with transmission shaft 25, rolling bearing 32, bearing baffle ring 31, the outside framework oil seal 27 that prevents the circlip for shaft 30 of rolling bearing play, circlip for hole 29 and prevent interior oil from outflowing particularly.Main pump body 4 internal fixtion installs pintle 6, cylinder body 12 is housed outside pintle 6, cylinder body 12 end is provided with the rectangular boss floating connection of rectangular recess and pump head 28 intermediate solid drive shaft 25, particularly, the left end of described transmission shaft is provided with rectangular boss, and the both sides of rectangular boss are provided with 2 planes, and two planes are parallel to each other and be all parallel to the axis of transmission shaft, rectangular boss is embedded in the rectangular recess of cylinder body right-hand member, and the rectangular recess of cylinder body right-hand member is perpendicular to the axis of transmission shaft.Pintle 6 is coaxial with transmission shaft 25, on pintle except installation cylinder body 12, packing ring 7 is also installed, main pump body 4 prevents packing ring 7 from rotating with cylinder body 12 built with resilient key 5, the plunger 11 vertical with pintle is slidably fitted with in cylinder body, the glide direction of plunger on cylinder body is perpendicular to pintle, cylinder body is also provided with tapered auger first spring 10, one end of tapered auger first spring is against on cylinder body 12, the other end of tapered auger first spring is stuck in the groove of plunger, the exterior edge face of plunger is against on bearing 8, described bearing and cylinder body eccentric setting, O type circle 9 is provided with at main pump body and pump head 28 contacting point.
Main pump body is provided with safety valve, safety valve comprises valve seat 20, first steel ball 19 is provided with in valve seat, the upper end of first steel ball is against on spring seat 18, the upper end of spring seat is against on second spring 17, the upper end of second spring is against in adjusting screw 16, and the top of adjusting screw is provided with acorn nut 13, hexagon nut 14 and combination mat 15.
Main pump body is also provided with Fill valve, and Fill valve is arranged on the lower end of safety valve, and Fill valve comprises second steel ball 23 and the third spring 22.
The operating principle of the invention is:
Transmission shaft 25 and the flat key 26 of this pump are connected with motor.Motor drives transmission shaft 25 to rotate by flat key 26, the structure that transmission shaft 25 inserts cylinder body 12 rectangular recess by its rectangular boss drives cylinder body 12 to rotate, plunger 11 does straight reciprocating motion in cylinder body 12 simultaneously, because bearing 8 mounting center is partial to main pump body 4 center, so, the stroke of plunger 11 all directions in cylinder body 12 is different, make plunger 11 cavity of resorption that different volume-variation occur, volume becomes large, produces certain vacuum degree, the oil-sucking hole of oil through pintle 6 is sucked, realizes oil-absorbing process; Volume diminishes, and the oil drainage hole of pressure oil through pintle 6 is discharged, realizes oil extraction process.When motor rotation direction changes, suction, the oil drain out of pump are changed mutually, thus realize positive and negative both direction rotation requirement.When interior leakage loss increases, part fluid enters oil sucting cavity through Fill valve, prevents emptying phenomenon.When load changes increase, fluid is opened first steel ball 19 and is flowed into fuel tank, thus realizes constant pressure.
Although be described the preferred embodiment of the invention by reference to the accompanying drawings above; but the invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under the enlightenment of the invention; do not departing under the ambit that the invention aim and claim protect, can also make a lot of form, these all belong within the protection domain of the invention.
Claims (3)
1. a radial plunger pump, comprise the fuel tank connected successively, main pump body and pump head, the transmission shaft be connected with motor is installed in pump head, it is characterized in that: main pump body internal fixtion installs pintle, outside pintle, cylinder body is housed, cylinder ends is provided with the rectangular boss floating connection of rectangular recess and pump head intermediate solid drive shaft, pintle is provided with packing ring, plunger is slidably fitted with in cylinder body, the glide direction of plunger on cylinder body is perpendicular to pintle, cylinder body is also provided with tapered coil spring first, one end of tapered coil spring first is against on cylinder body, the other end of tapered coil spring first is stuck in the groove of plunger, the exterior edge face of plunger is against on bearing, described bearing and cylinder body eccentric setting.
2. radial plunger pump according to claim 1, it is characterized in that: the left end of described transmission shaft establishes rectangular boss, the both sides of rectangular boss are provided with 2 planes, two planes are parallel to each other and be all parallel to the axis of transmission shaft, rectangular boss is embedded in the rectangular recess of cylinder body right side, and the rectangular recess of cylinder body right side is perpendicular to the axis of transmission shaft.
3. radial plunger pump according to claim 1, it is characterized in that: described main pump body is provided with safety valve, safety valve comprises valve seat, steel ball, the upper end of steel ball is against on spring seat, the upper end of spring seat is against on second spring, and the upper end of second spring is against in adjusting screw, and the top of adjusting screw is provided with acorn nut and hexagon nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420814691.4U CN204458235U (en) | 2014-12-19 | 2014-12-19 | Radial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420814691.4U CN204458235U (en) | 2014-12-19 | 2014-12-19 | Radial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458235U true CN204458235U (en) | 2015-07-08 |
Family
ID=53665135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420814691.4U Active CN204458235U (en) | 2014-12-19 | 2014-12-19 | Radial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150374A (en) * | 2017-12-22 | 2018-06-12 | 赛克思液压科技股份有限公司 | The axis distributing construction and closed type hydraulic pump of a kind of closed type hydraulic pump |
| CN112523985A (en) * | 2020-11-23 | 2021-03-19 | 常志 | Radial plunger pump |
-
2014
- 2014-12-19 CN CN201420814691.4U patent/CN204458235U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150374A (en) * | 2017-12-22 | 2018-06-12 | 赛克思液压科技股份有限公司 | The axis distributing construction and closed type hydraulic pump of a kind of closed type hydraulic pump |
| CN112523985A (en) * | 2020-11-23 | 2021-03-19 | 常志 | Radial plunger pump |
| CN112523985B (en) * | 2020-11-23 | 2022-12-20 | 常志 | Radial plunger pump |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |