CN104865071B - Device and method for testing performances of plunger-copper sleeve friction pair - Google Patents

Device and method for testing performances of plunger-copper sleeve friction pair Download PDF

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Publication number
CN104865071B
CN104865071B CN201510306631.0A CN201510306631A CN104865071B CN 104865071 B CN104865071 B CN 104865071B CN 201510306631 A CN201510306631 A CN 201510306631A CN 104865071 B CN104865071 B CN 104865071B
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CN
China
Prior art keywords
plunger
loading
leading screw
fixed
shifting board
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CN201510306631.0A
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Chinese (zh)
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CN104865071A (en
Inventor
崔同洋
童宝宏
王光煜
杨文�
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安徽工业大学
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Priority to CN201510306631.0A priority Critical patent/CN104865071B/en
Publication of CN104865071A publication Critical patent/CN104865071A/en
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Publication of CN104865071B publication Critical patent/CN104865071B/en

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Abstract

The invention provides a device and method for testing the performances of a plunger-copper sleeve friction pair, and belongs to the technical field of hydraulic equipment detection. The device and method can achieve test simulation of single reciprocating rectilinear movement of a plunger-copper sleeve under the condition of considering plunger autorotation. The device mainly consists of a drive system, a loading system, a measurement system, and an oil supply system. The drive system supplies power to the whole device, and achieves a movement mode of the plunger in the copper sleeve. The loading system provides a vertical upward loading force for the whole device. The oil supply system provides oil for the surfaces of the plunger and the copper sleeve continuously, thereby enabling the plunger and the copper sleeve to form a continuous oil film in a movement process. The measurement system achieves the collection and analysis of test data, and obtains the results. The device and method change the parameters: load, rotating speed and time, ad are used for testing the performances of the plunger-copper sleeve friction pair.

Description

A kind of plunger-copper sheathing friction pair performance testing device and method of testing
Technical field:
The invention belongs to hydraulic test detection technique field, and in particular to a kind of plunger-copper sheathing friction pair performance test dress Put and method of testing.
Background technology:
Used as one of building block common in engineering hydraulic test, its performance directly affects all kinds of machinery dresses to plunger displacement pump The reliability of standby work, plunger-copper sheathing friction pair is that the crucial of plunger displacement pump constitutes parts, work of the surface contact conditions to pump Performance impact is obvious.If plunger-copper sheathing design of friction pairs is improper, copper sheathing serious wear can be caused, this task performance to pump and Service life can produce serious influence.Therefore, plunger-copper sheathing friction pair is carried out under different operating modes performance test for The wear law and improvement design of friction pairs of solution copper sheathing has very important effect.
When friction problem between plungers pump plunger-copper sheathing is studied, test device and method of testing play vital Effect.Occur some testing machines both at home and abroad at present, by standard specimen come the performance between testing friction pair, wherein much testing Machine and experimental rig can carry out linear reciprocating motion test.As Chinese patent CN103822840A discloses a kind of reciprocating post Plug pump barrel frictional wear test device, can provide a kind of feasible test method for column type exemplar fretting wear problem, should Device is tested as exemplar using being close to the plunger and pump barrel of reality, and the device simply considers plunger in pump barrel Move back and forth, do not account for spinning motion of the plunger in pump barrel.In plunger displacement pump, plunger is in copper sheathing except carrying out reciprocating linear Also there is certain spinning motion simultaneously outside motion, existing test device can't rub with method of testing to plunger-copper sheathing Wiping secondary motion state carries out more complete simulation.The present invention proposes in this context a kind of dedicated for testing plunger pump plunger shaft The test device and method of testing of plug-copper sheathing friction pair performance, it is possible to achieve property of the plunger-copper sheathing friction pair under different operating modes Can test.Actual motion form of the plunger in copper sheathing is the rotation of reciprocating motion and plunger itself of the plunger in copper sheathing, real Border condition of work is that plunger is subject to the axially driving lubricating status and between surface.
The content of the invention:
It is an object of the invention to the actual motion form and operating mode with reference to plunger in copper sheathing, there is provided a kind of plunger-copper The test device and method of testing of set friction pair performance.Plunger-copper sheathing can be carried out by the apparatus and method single reciprocal Test simulation in the case of linear motion and consideration plunger rotation.When the impact of plunger rotation factor is ignored, only by single drive Dynamic motor motoring ring test device carries out linear reciprocating motion, simulates reciprocating motion of the plunger in copper sheathing;When consideration plunger rotation When factor affects, the actual motion form by plunger in copper sheathing is reduced to the combined type between surface-to-surface and moves back and forth, by mutual Two motor motoring ring test devices of vertical direction move back and forth simulation reciprocating motion and post of the plunger in copper sheathing Plug spinning motion.In order to simulate stressing conditions of the plunger in copper sheathing, this test device is adopted to plunger surface radial loaded Mode;In order to simulate the lubricating status between plunger and copper sheathing surface, oil supply system is provided with the present invention, oil supply system can be right The quantity delivered and oil temperature of lubricating oil is regulated and controled.By the present invention plunger-copper sheathing friction pair can be realized in various different operating modes Under performance test.
A kind of plunger provided by the present invention-copper sheathing friction pair test device includes drive system, loading system, measurement system System and oil supply system.The drive system includes fixed plate 1, horizontal drive motor 18, the first leading screw 22, the first fixing nut 25th, upper strata guide rail 19, upper strata slide block 15, upper shifting board 16, vertical drive motor 21, the second leading screw 27, lower floor guide rail 20, lower floor Slide block 4, lower shifting board 5 and erecting bed 17;The horizontal drive motor 18 is fixed on the upper surface of the lower shifting board 5, institute State the first leading screw 22 to be connected with the horizontal drive motor 18 by first shaft coupling 23, first leading screw 22 is provided with first The fixing nut 25 of travelling nut 24 and first, wherein first travelling nut 24 is fixed on the following table of the upper shifting board 16 Face, first fixing nut 25 be located at first leading screw 22 end, first fixing nut 25 be arranged on it is described under The upper surface of movable plate 5, the upper strata guide rail 19 is arranged on the lower shifting board 5, and four are installed in the upper strata guide rail 19 The symmetrically arranged upper strata slide block 15, the upper strata slide block 15 is fixedly installed on the lower surface of the upper shifting board 16, described Erecting bed 17 is fixed on the upper shifting board 16;The vertical drive motor 21 is arranged in the fixed plate 1, and described second Leading screw 27 is connected by second shaft coupling 26 with the vertical drive motor 21, and second leading screw 27 is provided with the second movement spiral shell Female 28 and second fixing nut 29, second travelling nut 28 is fixed on the lower surface of the lower shifting board 5, and described second Fixing nut 29 is located at the end of second leading screw 27, and second fixing nut 29 is fixedly mounted on the upper table of fixed plate 1 Face;The lower floor guide rail 20 is fixed in the fixed plate 1, in the lower floor guide rail 20 install four it is symmetrically arranged it is described under Layer slide block 4, lower floor's slide block 4 is fixedly installed on the lower surface of the lower shifting board 5.
The loading system include angle steel fixed plate 2, angle steel gripper shoe 3, horizontal supporting plate 8, loading motor 30, the 3rd Thick stick 32, Z-type support 6, screw rod 40, oscillating bearing 41, ball rod 42, plunger 43 and lower clamp 44;The angle steel fixed plate 2 is pacified It is mounted in the fixed plate 1, the angle steel gripper shoe 3 is arranged in the angle steel fixed plate 2, and the horizontal supporting plate 8 is fixed At the top of the angle steel gripper shoe 3, the loading motor 30 is arranged on the horizontal supporting plate 8 by the flange of bottom, 3rd leading screw 32 is connected by the 3rd shaft coupling 31 with the loading motor 30, and on the 3rd leading screw 32 leading screw is cased with Nut 33, the feed screw nut 33 is connected by studs 35 with scroll wheel connector 36, and scroll wheel 39 is provided with sleeve in hole 38, the scroll wheel 39 and the sleeve 38 are arranged on the scroll wheel connector 36 by pin 37, the scroll wheel It is that gap coordinates between the sleeve 38 and the pin 37 between 39 and the sleeve 38;The spacing helical pitch plate 7 is located at institute State the rear side of feed screw nut 33 and be close to the feed screw nut 33, the spacing helical pitch plate 7 is fixed in angle steel gripper shoe 3, The Z-type support 6 is fixed in the angle steel gripper shoe 3, and the screw rod 40 is located on same axis with the 3rd leading screw 32, The screw rod 40 is fixed on the Z-type support 6 by spacing hole, the screw rod 40 and its upper part when not loaded Do not contact, the oscillating bearing 41 is attached by screw thread with the screw rod 40, the ball rod 42 is arranged on the joint The lower section of bearing 41, the plunger 43 is fixed on the lower section of the ball rod 42, and the lower clamp 44 is fixed on the erecting bed On 17.
The measuring system includes master controller 9, first pressure sensor 10 and second pressure sensor 34;Described One pressure sensor 10 is arranged on Z-type support 6, and the second pressure sensor 34 is arranged on the lower surface of feed screw nut 33.
The oil supply system includes oil box 11, hydraulic oil supply system 12, oil return pipe 13 and fuel feed pump 14, and the hydraulic pressure is supplied Oil system include fuel tank 49, filter 50, hydraulic pump 51, overflow valve 52, choke valve 53, flowmeter 54, temperature indicator 55 with And resistive heater 56;Wherein described oil box 11 is located at the lower section of the lower clamp 44 and is fixedly mounted on the upper of the erecting bed 17 Surface, the filter 50 is located inside the fuel tank 49, and the fuel tank 49 connects the hydraulic pump 51, and the overflow valve 52 is consolidated Dingan County is mounted in the side of the hydraulic pump 51, and the choke valve 53 is arranged on from the fuel feed pump 14 derived from the hydraulic pump 51 On, the fuel feed pump 14 is provided with the flowmeter 54, and the fuel feed pump 14 is connected by screw thread with the hole of the plunger 43, overflows The lubricating oil for going out is collected by the oil box 11, and the lubricating oil of spilling is come back in fuel tank 49 by the oil return pipe 13, institute Temperature indicator 55 is stated in the fuel tank 49, the resistive heater is fixedly mounted on the bottom of the fuel tank 49.
In loading system, scroll wheel 39 can be rotated so as to reduce plunger in copper sheathing apparent motion on pin 37, The impact of the force of sliding friction that loading system is produced in the horizontal;The design of plunger clamping makes with reference to the design principle of oscillating bearing Plunger can swing certain angle on horizontal and vertical, so as to ensure plunger table when copper sheathing surface moves back and forth Effectively fit with copper sheathing surface in face.
The present invention provides a kind of test device to be used to test one of method of plunger-copper sheathing friction pair performance, the method It is specific as follows:First by the clamping of semicircle copper sheathing 48 on the lower clamp 44, the Z-type support 6 is adjusted by Level tune instrument Horizontal, so as to ensure the Vertical loading of power, then adjusts manually the position of the upper shifting board 16 and the lower shifting board 5, The surface for making the plunger 43 is fitted completely with the surface of the semicircle copper sheathing 48, does not stay gap, is controlled by the master controller 9 Making the loading motor 30 carries out the loading of power, then opens the hydraulic pump 51 and the choke valve 53 by appropriate and thermophilic Lubricating oil is supplied in the hole of the plunger 43 by fuel feed pump, and the horizontal drive motor 18 is by the first shaft coupling 23 Drive first leading screw 22 to be rotated, and then drive the plunger 43 to carry out reciprocating linear fortune in the semicircle copper sheathing 48 It is dynamic, observe finally by the master controller 9 and record data.The method ignores the impact of plunger rotation factor, by single drive Dynamic motor motoring ring test device carries out linear reciprocating motion, simulates reciprocating motion of the plunger in copper sheathing in actual plunger displacement pump.
The present invention provides a kind of test device to be used to test the two of the method for plunger-copper sheathing friction pair performance, the method It is specific as follows:First by the clamping of copper billet 47 on the lower clamp 44, the Z-type support 6 is adjusted by water by Level tune instrument It is flat, so as to ensure the Vertical loading of power, the position of the upper shifting board 16 and the lower shifting board 5 is then adjusted manually, make institute The surface for stating plunger 43 is fitted completely with the surface of the copper billet 47, does not stay gap, and by the master controller 9 described adding is controlled Carrying motor 30 carries out the loading of power, then opens the hydraulic pump 51 and the choke valve 53 and leads to the lubricating oil of appropriate and thermophilic Cross fuel feed pump to be supplied in the hole of the plunger 43, the horizontal drive motor 18 drives described by the first shaft coupling 23 First leading screw 22 is rotated, and then it is real to drive the plunger 43 to carry out horizontal reciprocating motion simulation on the surface of the copper billet 47 Reciprocating motion of the plunger in copper sheathing in the plunger displacement pump of border;The vertical drive motor 21 drives the by the second shaft coupling 26 Two leading screws 27 are rotated, and then it is actual to drive the plunger 43 to carry out longitudinal reciprocating motion simulation on the surface of the copper billet 47 Spinning motion of the plunger in copper sheathing in plunger displacement pump, observes and record data finally by master controller 9.The method considers plunger The impact of rotation factor, the actual motion form by plunger in copper sheathing is reduced to the combined type between surface-to-surface and moves back and forth, by Two motor motoring ring test devices of mutually perpendicular direction move back and forth, and plunger is in copper sheathing in the actual plunger displacement pump of simulation In reciprocating motion and plunger spinning motion.
Drive system in the present invention provides power resources for integrated testability device, and its detailed operation is:Laterally drive Dynamic motor 18 rotate drive the first leading screw 22 rotated, the first travelling nut 24 with the first leading screw 22 rotation in the horizontal Moved back and forth, drive that each part on upper shifting board 16 and movable plate carries out transversely in upper strata guide rail 19 is reciprocal straight Line is moved.Vertical drive motor 21 is rotated and drives the second leading screw 27 to be rotated, and the second travelling nut 28 is with the second leading screw 27 Rotation moved back and forth in the vertical, drive each part on lower shifting board 5 and movable plate to be indulged in lower floor guide rail 20 Linear reciprocating motion upwards.
Loading system in the present invention provides the loading force on vertical direction for integrated testability device, enables plunger and copper sheathing Enough to be contacted under pressure, its detailed operation is:Loading motor 30 drives the 3rd leading screw 32 to rotate, and makes leading screw Nut 33 is moved downward along the 3rd leading screw 32, drives the scroll wheel connector 36 below nut to move downward.Installed in rolling Scroll wheel 39 in wheel connector 36 is contacted with screw rod 40, while screw rod 40 is moved down so that plunger 42 is contacted with copper sheathing, complete Into loading of the plunger on copper sheathing surface.The effect of spacing helical pitch plate 7 in loading system is to limit feed screw nut 33 in vertically side Do not shift when moving up;Z-type support 6 can be rotated upwardly and downwardly, and drive the plunger on ball rod 42 to be contacted with copper sheathing With separate;The effect of scroll wheel 39 be plunger when copper sheathing surface is moved back and forth, reduce loading system produce in the horizontal Force of sliding friction impact;The design of plunger clamping makes plunger carry out on copper sheathing surface with reference to the design principle of oscillating bearing During reciprocating motion, certain angle can be swung on horizontal and vertical, so as to ensure that plunger surface is effectively pasted with copper sheathing surface Close.
The course of work of the measuring system in the present invention is:First pressure sensor 10 measures horizontal movement direction upper plug With the size of the frictional force on copper sheathing surface, the size of power loading, master control on the measurement vertical direction of second pressure sensor 34 The control horizontal drive motor 18 of device 9, vertical drive motor 21, rotating speed of loading motor 30 etc. are tested, by master controller 9 Analytical calculation, draws the graph of a relation between loading force, frictional force and coefficient of friction three.
Oil supply system in the present invention makes both be formed in motion process and continues to plunger and copper sheathing continuous surface fuel feeding Oil film, its detailed operation is:Hydraulic pump 51 is opened, the lubricating oil in fuel tank 49 is through filter 50 from petroleum pipeline 14 Flow out, entered choke valve 53 and flowmeter 54 is entered in the hole of plunger, make to form lasting between plunger and copper sheathing surface Oil film, the lubricating oil of spilling is collected by oil box 11, and by oil return pipe 13 fuel tank 49 is come back to.Wherein overflow valve 52 Effect is to prevent the too high damage hydraulic pump 51 of oil pressure;The effect of choke valve 53 is the flow for controlling lubricating oil;Resistive heater 56 The temperature of lubricating oil can be controlled positioned at the bottom of fuel tank 49.
Apparatus of the present invention are calculated using data processor, and simple to operate, control is accurate;Can be to load, speed, lubricating oil It is changed Deng experiment parameter, realizes motion of the plunger from copper sheathing under different operating modes, so as to simulates plunger-copper sheathing as far as possible The actual condition of friction pair;
Description of the drawings:
Fig. 1 is the structural representation of test device of the present invention;
Fig. 2 is the drive part overlooking the structure diagram in test device of the present invention;
Fig. 3 is the lateral driver device structural representation in test device of the present invention;
Fig. 4 is the longitudinal driving device structural representation in test device of the present invention;
Fig. 5 is the charger structural representation in test device of the present invention;
Fig. 6 is the upper fixture structural representation in test device of the present invention;
Fig. 7 is the lower clamp overlooking the structure diagram in test device of the present invention;
Fig. 8 is the right side structural representation of the lower clamp in test device of the present invention;
Fig. 9 is the structural representation of the lower clamp clamping copper billet in the present invention;
Figure 10 is the structural representation of the lower clamp clamping semicircle copper sheathing in the present invention;
Figure 11 is hydraulic pressure fuel feeding principle schematic;
Figure 12 is data collection and analysis principle schematic.
In figure:1:Fixed plate;2:Angle steel fixed plate;3:Angle steel gripper shoe;4:Lower floor's slide block;5:Lower shifting board;6:Z-type Frame;7:Spacing helical pitch plate;8:Horizontal supporting plate;9:Master controller;10:First pressure sensor;11:Oil box;12:Hydraulic pressure fuel feeding System;13:Oil return pipe;14:Fuel feed pump;15:Upper strata slide block;16:Upper shifting board;17:Erecting bed;18:Horizontal drive motor; 19:Upper strata guide rail;20:Lower floor guide rail;21:Vertical drive motor;22:First leading screw;23:First shaft coupling;24:First movement Nut;25:First fixing nut;26:Second shaft coupling;27:Second leading screw;28:Second travelling nut;29:Second fixes spiral shell It is female;30:Loading motor;31:3rd shaft coupling;32:3rd leading screw;33:Feed screw nut;34:Second pressure sensor;35:It is double Header stud;36:Scroll wheel connector;37:Pin;38:Sleeve;39:Scroll wheel;40:Screw rod;41:Oscillating bearing;42:Bulb Bar;43:Plunger;44:Lower clamp;45:First fixing screws;46:Second fixing screws;47:Copper billet;48:Semicircle copper sheathing;49: Fuel tank;50:Filter;51:Hydraulic pump;52:Overflow valve;53:Choke valve;54:Flowmeter;55:Temperature indicator;56:Heating Resistance wire.
Specific embodiment:
A kind of plunger-copper sheathing friction pair performance testing device of the present invention and method of testing, test device include drive system, Loading system, measuring system and the part of oil supply system four.
As shown in Figure 1, Figure 2, Figure 3 shows, horizontal drive motor 18 is fixed on the upper surface of lower shifting board 5, and the first leading screw 22 passes through First shaft coupling 23 is connected with horizontal drive motor 18, and the first leading screw 22 is provided with the first travelling nut 24 and first and fixes spiral shell Female 25, wherein the first travelling nut 24 is fixed on the lower surface of upper shifting board 16, the first fixing nut 25 is located at the first leading screw 22 End, installed in the upper surface of lower shifting board 5.Upper strata guide rail 19 is arranged on lower shifting board 5, and in upper strata guide rail 19 four are installed Individual symmetrically arranged upper strata slide block 15, upper strata slide block 15 is fixedly installed on the lower surface of upper shifting board 16, and erecting bed 17 is fixed on On upper shifting board 16.Vertical drive motor 21 is arranged in fixed plate 1, and the second leading screw 27 is by second shaft coupling 26 and longitudinal direction drive Dynamic motor 21 is connected;Second leading screw 27 is provided with the second travelling nut 28 and the second fixing nut 29, wherein the second movement spiral shell Female 28 lower surfaces for being fixed on lower shifting board 5, the second fixing nut 29 is located at the end of the second leading screw 27, installed in fixed plate 1 Upper surface.Four symmetrically arranged lower floor's slide blocks 4 are installed, lower floor's slide block 4 is fixedly installed on described moving down in lower floor guide rail 20 The lower surface of dynamic plate 5.
As shown in Fig. 1, Fig. 4, Fig. 5, Fig. 6, angle steel fixed plate 2 is arranged in fixed plate 1, and angle steel gripper shoe 3 is arranged on angle In steel fixed plate 2, horizontal supporting plate 8 is fixed on the top of angle steel gripper shoe 3, and loading motor 30 is arranged on by the flange of bottom On horizontal supporting plate 8, the 3rd leading screw 32 is connected by the 3rd shaft coupling 31 with loading motor 30, and on the 3rd leading screw 32 silk is cased with Thick stick nut 33, is connected by studs 35 with scroll wheel connector 36, and the hole of scroll wheel 39 is enclosed within built with sleeve 38, sleeve 38 On pin 37, scroll wheel 39 and sleeve 38 are arranged on scroll wheel connector 36 by pin 37, scroll wheel 39 and sleeve 38 it Between, it is that gap coordinates between sleeve 38 and pin 37, spacing helical pitch plate 7 is located at the rear side of feed screw nut 33 and is close to leading screw spiral shell Female 33, spacing helical pitch plate 7 is fixed in angle steel gripper shoe 3, on the fixed angles steel bracing plate 3 of Z-type support 6, screw rod 40 and the 3rd On the same axis, screw rod 40 is fixed on Z-type support 6 thick stick 32 by spacing hole, when not loaded screw rod 40 with thereon End pieces do not come in contact, and oscillating bearing 41 is attached by screw thread with screw rod 40, and ball rod 42 is arranged on oscillating bearing 41 Lower section, plunger 43 is fixed on the lower section of ball rod 42, and lower clamp 44 is fixed on erecting bed 17.First pressure sensor 10 On Z-type support 6, the frictional force in horizontal direction is measured;Second pressure sensor 34 is fixed on the lower section of feed screw nut 28, surveys The size of power on amount vertical direction, master controller 9 can be acquired process to data, and pass through data wire phase with three motors Even, the rotating speed of controlled motor, loading of power etc..Two sensor data measureds are analyzed calculating by master controller 9, draw examination Test result.
As shown in Figure 1, shown in Figure 11, the lubricating oil in fuel tank 49 flows out through filter 50 from petroleum pipeline 14, enters throttling Valve 53 and flowmeter 54 are entered in the hole of plunger, make that lasting oil film, the profit of spilling can be formed between plunger and copper sheathing surface Lubricating oil is collected by oil box 11, and by oil return pipe 13 fuel tank 49 is come back to.The effect of wherein overflow valve 52 is to prevent oil Press through high damage hydraulic pump 51;The effect of choke valve 53 is the flow for controlling lubricating oil;Resistive heater 56 is located at fuel tank 49 Bottom can control the temperature of lubricating oil, realize plunger-test of the copper sheathing friction pair under different oil temperature conditions, and oil temperature is by temperature Degree display instrument 56 shows.
The present invention provides a kind of test device to be used to test one of method of plunger-copper sheathing friction pair performance, the method Ignore the impact of plunger rotation, only linear reciprocating motion of the simulation plunger in copper sheathing.Concrete method of testing is as follows:Using second Z-type support 6 on lower clamp 44, level is adjusted by Level tune instrument by the clamping of semicircle copper sheathing 48 by fixing screws 46, it is ensured that The Vertical loading of power, then adjusts manually the position of upper shifting board 16 and lower shifting board 5, makes the surface of plunger 43 and semicircle copper sheathing 48 Surface is fitted completely, does not stay gap, and by the controlled loading motor 30 of master controller 9 loading of power is carried out.Then hydraulic pump is opened 51 and choke valve 53 lubricating oil of appropriate and thermophilic is supplied in the hole of plunger by fuel feed pump, controlled by master controller 9 Horizontal drive motor 18 is moved so that horizontal drive motor 18 drives the first leading screw 22 to be revolved by first shaft coupling 23 Turn, drive plunger 43 that linear reciprocating motion is carried out in semicircle copper sheathing 48.Last first pressure sensor 10 and second pressure are passed The data that sensor 34 is measured are observed and recorded by master controller 9.
The present invention provides a kind of test device to be used to test the two of the method for plunger-copper sheathing friction pair performance, the method Consider the impact of plunger rotation factor, the combined type that the actual motion form by plunger in copper sheathing is reduced between surface-to-surface is past Multiple motion, concrete method of testing is as follows:Using the first fixing screws 45 just clamping of copper billet 47 on lower clamp 44, by level Z-type support 6 is adjusted level by adjusting apparatus, it is ensured that the Vertical loading of power, and upper shifting board 16 and lower shifting board 5 are then adjusted manually Position, makes the surface of plunger 43 fit completely with the surface of copper billet 47, does not stay gap, is entered by the controlled loading motor 30 of master controller 9 The loading of row power.Then hydraulic pump 51 and choke valve 53 are opened the lubricating oil of appropriate and thermophilic is supplied to into plunger by fuel feed pump Hole in, horizontal drive motor 18 and vertical drive motor 21 are controlled by master controller 9 and are moved so that laterally driven electricity Machine 18 drives the first leading screw 22 to be rotated by first shaft coupling 23, drives plunger 43 to carry out on the surface of copper billet 47 horizontal past Reciprocating motion of the plunger in copper sheathing in actual plunger displacement pump is simulated in multiple motion;Vertical drive motor 21 passes through the band of second shaft coupling 26 Dynamic second leading screw 27 is rotated, and is driven the plunger 43 to carry out longitudinal reciprocating motion on the surface of copper billet 47 and is simulated actual plunger Spinning motion of the plunger in copper sheathing in pump, the data that last first pressure sensor 10 and second pressure sensor 34 are measured are led to Cross master controller 9 to observe and record.Various signals are gathered and arranged through master controller 9, finally given loading force-time, are rubbed Wipe the relation curve such as power-time and coefficient of friction-time.

Claims (3)

1. a kind of plunger-copper sheathing friction pair performance testing device, it is characterised in that the test device includes drive system, loading system System, measuring system and oil supply system;The drive system includes fixed plate (1), horizontal drive motor (18), the first leading screw (22), upper strata guide rail (19), upper strata slide block (15), upper shifting board (16), vertical drive motor (21), the second leading screw (27), under Layer guide rail (20), lower floor's slide block (4), lower shifting board (5) and erecting bed (17), the horizontal drive motor (18) is fixed on institute The upper surface of lower shifting board (5) is stated, first leading screw (22) is by first shaft coupling (23) and the horizontal drive motor (18) it is connected, first leading screw (22) is provided with the first travelling nut (24) and the first fixing nut (25), wherein described First travelling nut (24) is fixed on the lower surface of the upper shifting board (16), and first fixing nut (25) is positioned at described The end of one leading screw (22), first fixing nut (25) installed in the upper surface of the lower shifting board (5), lead by the upper strata Rail (19) installs four symmetrically arranged upper stratas cunnings on the lower shifting board (5), on the upper strata guide rail (19) Block (15), the upper strata slide block (15) is fixedly installed on the lower surface of the upper shifting board (16), and the erecting bed (17) is fixed On the upper shifting board (16), the vertical drive motor (21) in the fixed plate (1), second leading screw (27) it is connected with the vertical drive motor (21) by second shaft coupling (26), second leading screw (27) is provided with the second shifting Dynamic nut (28) and the second fixing nut (29), second travelling nut (28) is fixed under the lower shifting board (5) Surface, second fixing nut (29) is positioned at the end of second leading screw (27), and second fixing nut (29) is fixed Installed in the upper surface of fixed plate (1), the lower floor guide rail (20) is fixed in the fixed plate (1), the lower floor guide rail (20) four symmetrically arranged lower floor's slide blocks (4) are installed, lower floor's slide block (4) is fixedly installed on the lower shifting board on (5) lower surface;The loading system includes angle steel fixed plate (2), angle steel gripper shoe (3), horizontal supporting plate (8), loading electricity Machine (30), the 3rd leading screw (32), Z-type support (6), screw rod (40), oscillating bearing (41), ball rod (42), plunger (43) and Lower clamp (44), in the fixed plate (1), the angle steel gripper shoe (3) is installed in described for the angle steel fixed plate (2) In angle steel fixed plate (2), the horizontal supporting plate (8) is fixed on the top of the angle steel gripper shoe (3), the loading motor (30) it is arranged on the horizontal supporting plate (8) by the flange of bottom, the 3rd leading screw (32) is by the 3rd shaft coupling (31) it is connected with the loading motor (30), feed screw nut (33), the feed screw nut is cased with the 3rd leading screw (32) (33) it is connected with scroll wheel connector (36) by studs (35), in scroll wheel (39) hole sleeve (38), institute is provided with Scroll wheel (39) and the sleeve (38) are stated by pin (37) on the scroll wheel connector (36), the rolling It is that gap coordinates between the sleeve (38) and the pin (37) between wheel (39) and the sleeve (38), spacing helical pitch plate (7) positioned at the feed screw nut (33) rear side and be close to the feed screw nut (33), the spacing helical pitch plate (7) is fixed on In angle steel gripper shoe (3), the Z-type support (6) is fixed on the angle steel gripper shoe (3), the screw rod (40) and described On same axis, the screw rod (40) is fixed on the Z-type support (6) three leading screws (32) by spacing hole, is not being entered The screw rod (40) does not contact with its upper part during row loading, and the oscillating bearing (41) is by screw thread and the screw rod (40) It is attached, the ball rod (42) is fixed on the ball installed in the lower section of the oscillating bearing (41), the plunger (43) The lower section of head rod (42), the lower clamp (44) is fixed on the erecting bed (17);The measuring system includes master controller (9), first pressure sensor (10) and second pressure sensor (34), the first pressure sensor (10) is installed in described On Z-type support (6), lower surface of the second pressure sensor (34) installed in the feed screw nut (33);The fuel feeding system System includes oil box (11), hydraulic oil supply system (12), oil return pipe (13) and fuel feed pump (14), and the hydraulic oil supply system includes Fuel tank (49), filter (50), hydraulic pump (51), overflow valve (52), choke valve (53), flowmeter (54), temperature indicator (55) and resistive heater (56), wherein the oil box (11) is positioned at the lower clamp (44) lower section and is fixedly mounted on described The upper surface of erecting bed (17), the filter (50) is internal positioned at the fuel tank (49), and the fuel tank (49) connects the liquid Press pump (51), the overflow valve (52) is fixedly mounted on the side of the hydraulic pump (51), the choke valve (53) installed in from On the fuel feed pump (14) derived from the hydraulic pump (51), the fuel feed pump (14) is provided with the flowmeter (54), described Fuel feed pump (14) is connected by screw thread with the hole of the plunger (43), and the temperature indicator (55) is installed in the fuel tank (49) Interior, the resistive heater is fixedly mounted on the bottom of the fuel tank (49).
2. a kind of method of testing of plunger described in claim 1-copper sheathing friction pair performance testing device, it is characterised in that the method Particular content is as follows:First by semicircle copper sheathing (48) clamping on the lower clamp (44), by Level tune instrument by the Z-type Support (6) adjusts level, it is ensured that the Vertical loading of power, and the upper shifting board (16) and the lower shifting board are then adjusted manually (5) position, the surface for making the plunger (43) is fitted completely with the surface of the semicircle copper sheathing (48), does not stay gap, is passed through The master controller (9) controls the loading motor (30) and carries out the loading of power, then opens the hydraulic pump (51) and described Choke valve (53) is supplied to the lubricating oil of appropriate and thermophilic in the hole of the plunger (43) by fuel feed pump, described laterally driven Motor (18) drives first leading screw (22) to be rotated by the first shaft coupling (23), and then drives the plunger (43) linear reciprocating motion is carried out in the semicircle copper sheathing (48), reciprocal fortune of the plunger in copper sheathing in actual plunger displacement pump is simulated It is dynamic, observe finally by the master controller (9) and record data.
3. a kind of method of testing of plunger described in claim 1-copper sheathing friction pair performance testing device, it is characterised in that the method Particular content is as follows:First by copper billet (47) clamping on the lower clamp (44), by Level tune instrument by the Z-type support (6) adjust level, it is ensured that the Vertical loading of power, the upper shifting board (16) and the lower shifting board (5) are then adjusted manually Position, the surface for making the plunger (43) is fitted completely with the surface of the copper billet (47), gap is not stayed, by the master control Device (9) controls the loading motor (30) and carries out the loading of power, then opens the hydraulic pump (51) and the choke valve (53) The lubricating oil of appropriate and thermophilic is supplied in the hole of the plunger (43) by fuel feed pump, the horizontal drive motor (18) is led to Crossing the first shaft coupling (23) drives first leading screw (22) to be rotated, and then drives the plunger (43) in the copper Block (47) surface carries out reciprocating motion of the plunger in copper sheathing in the horizontal actual plunger displacement pump of reciprocating motion simulation;Drive the longitudinal direction Dynamic motor (21) drives the second leading screw (27) to be rotated by the second shaft coupling (26), and then drives the plunger (43) Spinning motion of the plunger in copper sheathing in the copper billet (47) surface carries out longitudinal actual plunger displacement pump of reciprocating motion simulation, most Observed and record data by master controller (9) afterwards.
CN201510306631.0A 2015-06-04 2015-06-04 Device and method for testing performances of plunger-copper sleeve friction pair CN104865071B (en)

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