CN209510547U - A kind of axial plunger pump - Google Patents

A kind of axial plunger pump Download PDF

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Publication number
CN209510547U
CN209510547U CN201821615155.6U CN201821615155U CN209510547U CN 209510547 U CN209510547 U CN 209510547U CN 201821615155 U CN201821615155 U CN 201821615155U CN 209510547 U CN209510547 U CN 209510547U
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CN
China
Prior art keywords
shell
swash plate
transmission shaft
wedge
pintle
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Active
Application number
CN201821615155.6U
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Chinese (zh)
Inventor
黄伟
沈小文
陈俊远
郭登飞
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Jiangsu Jinling Intellectual Building Research Institute Co Ltd
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Jiangsu Jinling Intellectual Building Research Institute Co Ltd
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Priority to CN201821615155.6U priority Critical patent/CN209510547U/en
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Publication of CN209510547U publication Critical patent/CN209510547U/en
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Abstract

The utility model discloses a kind of axial plunger pumps, are made of shell, transmission shaft, angular contact ball bearing, retaining ring, oil inlet loop, swash plate, chuck, plunger part, centering bulb, cylinder body, retracting spring, pintle, flap type, valve spring, wedge;Swash plate is fixedly connected with transmission shaft, realizes synchronous rotary;Transmission shaft is installed in shell by a pair of of angular contact ball bearing;Cylinder body is installed in shell, and plunger part is adjacent to swash plate by the oil liquid pressure collective effect by chuck, centering bulb and the retracting spring backhaul component formed and plunger base;Pintle and transmission axis connection, operate synchronously;Wedge is assemblied in shell by locking nut, and flap type is mounted in wedge, and flow function is realized together with pintle;Oil inlet loop is fixed on shell by a pair of of retaining ring, and oil inlet is arranged on oil inlet loop, is provided with oil outlet on wedge.The utility model has the advantages that structure is simple, rotary inertia is small, high pressure can be achieved.

Description

A kind of axial plunger pump
Technical field
The utility model relates to a kind of axial plunger pumps, and in particular to high pressure speed change pump control system axial plunger pump.
Background technique
Speed-variable pump is divided into gear pump and plunger pump.Gear pump is with volumetric efficiency is low, low speed pressure maintaining ability is poor, high pressure flow The disadvantage of regulation performance difference is not able to satisfy the requirement of the high pressure, highly-responsive, high reliability of speed-variable pump control system.
And existing plunger pump generally uses disk distributing construction, plunger pump machining accuracy height, the rotary inertia of this structure Greatly, low-speed performance is poor, is unable to satisfy the requirement of low speed heavy pressure.
Utility model content
That the purpose of this utility model is to provide a kind of structures is simple, rotary inertia is small, high reliability, the high pressure of long-life Axial plunger pump.
Realize the utility model aim technical solution are as follows: a kind of axial plunger pump, by shell, transmission shaft, angular contact ball axis Hold, oil inlet loop, swash plate, chuck, plunger part, centering bulb, cylinder body, retracting spring, pintle, flap type, valve spring, Wedge composition;
Swash plate realizes synchronous rotary by pin and transmission axis connection;Transmission shaft passes through a pair of of angular contact ball bearing installation In in shell;Cylinder body is installed in shell, and plunger part passes through by chuck, centering bulb and the backhaul component that forms of retracting spring With the oil liquid pressure collective effect of plunger base, it is adjacent to swash plate;Pintle and transmission axis connection, operate synchronously;Wedge is assemblied in In shell, flap type is installed in wedge, is adjacent to cylinder body under the action of valve spring, and flow function is realized together with pintle Energy;Oil inlet loop is fixed on shell, and oil inlet is provided on oil inlet loop, is provided with oil outlet on wedge.
Compared with prior art, the remarkable advantage of the utility model are as follows: the utility model is designed reasonably, structure are simply tight Gather, rotary inertia it is small;Transmission shaft and swash plate use separate structure, can realize the seriation of product by changing swash plate angle;Match The mode that stream mode selects pintle to combine with flap type can be realized low speed heavy pressure operating condition reliably working.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model axial plunger pump.
In figure: 1- shell, 2- transmission shaft, 3- bearing, 4- retaining ring, 5- oil inlet, 6- oil inlet loop, 7- swash plate 8- chuck, 9- plunger part, 10- centering bulb, 11- cylinder body, 12- retracting spring, 13- pintle, 14- flap type, 15- valve spring, 16- wedge, 17- locking nut, 18- oil outlet.
Specific embodiment
As shown in Figure 1, a kind of axial plunger pump, by shell 1, transmission shaft 2, angular contact ball bearing 3, retaining ring 4, oil inlet loop 6, swash plate 7, chuck 8, plunger part 9, centering bulb 10, cylinder body 11, retracting spring 12, pintle 13, flap type 14, valve bullet Spring 15, wedge 16 and locking nut 17 form;
Swash plate 7 is connect by pin with transmission shaft 2, realizes synchronous rotary;Transmission shaft 2 passes through a pair of of angular contact ball bearing 3 It is installed in shell 1;Cylinder body 11 is installed in shell 1, and plunger part 9 passes through by chuck 8, centering bulb 10 and retracting spring 12 The backhaul component of composition and the oil liquid pressure collective effect of plunger base, are adjacent to swash plate 7;Pintle 13 is connect with transmission shaft 2, together Step operating;Wedge 16 is assemblied in shell 1 by locking nut 17, and flap type 14 is installed in wedge 16, in valve spring 15 Under the action of be adjacent to cylinder body 11, realize flow function together with pintle 13;Oil inlet loop 6 passes through a pair of of retaining ring 4 and is fixed on shell On body 1, it is provided with oil inlet 5 on oil inlet loop, oil outlet 18 is provided on wedge.
Further, transmission shaft 2 and swash plate 7 use separate structure, and transmission shaft 2 drives swash plate 7 and the synchronous fortune of pintle 13 Turn.
Pintle 13 and flap type 14 realize flow function jointly.
The chuck 8 is connect with swash plate 7, plunger part 9, and centering 10 one end of bulb is connect with chuck 8, the other end and backhaul The connection of 12 one end of spring, 12 other end of retracting spring are connect with pintle 13.
Below with reference to embodiment, the present invention will be further described.
Embodiment
In conjunction with Fig. 1, a kind of axial plunger pump, by shell 1, transmission shaft 2, angular contact ball bearing 3, retaining ring 4, oil inlet loop 6, Swash plate 7, chuck 8, plunger part 9, centering bulb 10, cylinder body 11, retracting spring 12, pintle 13, flap type 14, valve spring 15, wedge 16, locking nut 17 form.
Swash plate 7 is connect by pin with transmission shaft 2, realizes synchronous rotary;Transmission shaft 2 passes through a pair of of angular contact ball bearing 3 It is installed in shell 1;Cylinder body 11 is installed in shell, and plunger part 9 passes through by chuck 8, centering bulb 10 and retracting spring 12 The backhaul component of composition and the oil liquid pressure collective effect of plunger base, are adjacent to swash plate 7;Pintle 13 is connect with transmission shaft 2, together Step operating;Wedge 16 is assemblied in shell 1 by locking nut 17, and flap type 14 is mounted in wedge 16, with pintle 13 1 It rises and realizes flow function;Oil inlet loop 6 passes through a pair of of retaining ring 4 and is fixed on shell 1, and oil inlet is provided on oil inlet loop, is pressed Oil outlet is provided on seat.The chuck 8 is connect with swash plate 7, plunger part 9, and centering 10 one end of bulb is connect with chuck 8, separately One end is connect with 12 one end of retracting spring, and 12 other end of retracting spring is connect with pintle 13.Transmission shaft 2 and swash plate 7, which use, to be divided Body structure, transmission shaft 2 drive swash plate 7 to operate synchronously with pintle 13.
When the utility model axial plunger pump work, when transmission shaft drives swash plate and pintle rotation, plunger stretches out plunger The length in hole also changes therewith, and swash plate rotates a circle, and each plunger just completes a stretching motion in cylinder body: when plunger stretches out When, plunger cavity is connected to pintle oil sucking window, completes oil-absorbing process;When plunger is contracted, plunger cavity and pintle oil suction window Mouth is staggered, and blocks connection, and flap type is opened under the action of oil liquid pressure, completes oil extraction process.

Claims (5)

1. a kind of axial plunger pump, which is characterized in that by shell (1), transmission shaft (2), angular contact ball bearing (3), oil inlet loop (6), swash plate (7), chuck (8), plunger part (9), centering bulb (10), cylinder body (11), retracting spring (12), pintle (13), flap type (14), valve spring (15), wedge (16) composition;
Swash plate (7) is connect by pin with transmission shaft (2), realizes synchronous rotary;Transmission shaft (2) passes through a pair of of angular contact ball bearing (3) it is installed in shell (1);Cylinder body (11) is installed in shell (1), and plunger part (9) passes through by chuck (8), centering bulb (10) and retracting spring (12) composition backhaul component and plunger base oil liquid pressure collective effect, be adjacent to swash plate (7);Flow Axis (13) is connect with transmission shaft (2), is operated synchronously;Wedge (16) is assemblied in shell (1), and flap type (14) is installed on wedge (16) in, cylinder body (11) is adjacent under the action of valve spring (15), realize flow function together with pintle (13);Oil inlet is living Set (6) is fixed on shell (1), is provided with oil inlet (5) on oil inlet loop, oil outlet (18) are provided on wedge.
2. axial plunger pump according to claim 1, which is characterized in that transmission shaft (2) is with swash plate (7) using seperated knot Structure, transmission shaft (2) drive swash plate (7) and pintle (13) to operate synchronously.
3. axial plunger pump according to claim 1, which is characterized in that oil inlet loop (6) is mounted on shell by retaining ring (4) On body (1).
4. axial plunger pump according to claim 1, which is characterized in that wedge (16) is assemblied in by locking nut (17) In shell (1).
5. axial plunger pump according to claim 1, which is characterized in that the chuck (8) and swash plate (7), plunger part (9) it connects, centering bulb (10) one end is connect with chuck (8), and the other end is connect with retracting spring (12) one end, retracting spring (12) other end is connect with pintle (13).
CN201821615155.6U 2018-09-30 2018-09-30 A kind of axial plunger pump Active CN209510547U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821615155.6U CN209510547U (en) 2018-09-30 2018-09-30 A kind of axial plunger pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821615155.6U CN209510547U (en) 2018-09-30 2018-09-30 A kind of axial plunger pump

Publications (1)

Publication Number Publication Date
CN209510547U true CN209510547U (en) 2019-10-18

Family

ID=68191567

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821615155.6U Active CN209510547U (en) 2018-09-30 2018-09-30 A kind of axial plunger pump

Country Status (1)

Country Link
CN (1) CN209510547U (en)

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