CN100448119C - Fuel pump brush performance testing workbench - Google Patents
Fuel pump brush performance testing workbench Download PDFInfo
- Publication number
- CN100448119C CN100448119C CNB2005100192784A CN200510019278A CN100448119C CN 100448119 C CN100448119 C CN 100448119C CN B2005100192784 A CNB2005100192784 A CN B2005100192784A CN 200510019278 A CN200510019278 A CN 200510019278A CN 100448119 C CN100448119 C CN 100448119C
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- China
- Prior art keywords
- pressure head
- brush
- anchor clamps
- fuel pump
- copper bar
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Abstract
The present invention relates to a fuel pump electric brush connector performance testing workbench which comprises a base (1), a support frame (3) and an advancing mechanism (4), wherein the support frame (3) is arranged on the base (1); the advancing mechanism is arranged on the support frame (3). The lower part of the advancing mechanism (4) is provided with a pressing head (7); the lower part of the pressing head (7) is provided with a plug seat (5) which is abutted with a plug of a tested electric brush frame; the base (1) which is arranged below the advancing mechanism (4) is provided with a clamp (2) of the electric brush frame; the clamp (2) is provided with two contact points which are respectively connected with two electric brushes arranged in the tested electric brush frame. Before testing, the tested electric brush frame is arranged at the clamp, and the performance of connectors of the electric brushes of the electric brush frame can be tested. The present invention has the advantages of high speed of testing and simple operation.
Description
Technical field
The present invention relates to testing equipment, particularly the performance test workbench of the parts of fuel pump.
Background technology
Electric fuel punp is sucking-off in the fuel from fuel tank and by each cylinder of fuel injector supply engine, for automobilism provides the fuel pressure source.The fuel pump that assembles is a non-removable assembly, generally do not keep in repair, thereby inner any one undesirable element all can cause scrapping of fuel pump, so very important to the Performance Detection of each several part (connecting openability, the rotating speed of motor of sealing, the overflow valve of resistance, the unidirectional valve of part, magnetic field intensity or the like after magnetizing as brush in the brush stage clip pressure in the brush carrier, the brush carrier) in its assembling process.Wherein the brush in the brush carrier connects part resistance and brush stage clip pressure directly has influence on fuel pump rotating speed and power output size, so to its detection and carry out optimal design and seem even more important.
Fuel pump brush is contained in the brush carrier, and the upper end of brush carrier is a plug, and the lower end is the electrographite brush under the effect of stage clip; The upper end of brush is connected to the motor power supply by coil and supply terminals and power supply, and the other end is in that contact the sense of current that guarantees on two limits of armature coil under the effect of stage clip with commutator constant all the time.Generally speaking, brush, coil and supply terminals all are good conductors, and brush connects part resistance and levels off to 0.But in its actual assembling process, multiple reason all may cause contact resistance to exist, and the company's of making part resistance instability (is not welded as coil, had rosin joint, leaks the weldering phenomenon; Brush stage clip decrement is little, and pressure is little, and brush and commutator are well contacted etc.).Excessive contact resistance can produce a very large impact oil fuel pump performance, and it mainly shows as following two kinds of situations: (1) reduces rotating speed of motor, influences the size of pump oil mass; (2) power loss of increase fuel pump reduces motor efficiency.
The instability that brush connects part resistance mainly is that brush contacts with commutator under the effect of stage clip pressure and exists contact resistance to cause, stage clip pressure shows as following two aspects to the influence of oil fuel pump performance: (1) pressure is excessive, in the motor operation process, overcome friction torque acting, from and reduced electric efficiency; (2) pressure is too small, has reduced the wearing and tearing of brush when motor rotation, but also may cause simultaneously brush up-down vibration or beat in brush carrier, makes that contact resistance becomes big between brush and the commutator, and then influences rotating speed of motor and cause bigger power loss.
Brush in the brush carrier connects part contact resistance and stage clip pressure the service behaviour of fuel pump is produced a very large impact, so in its assembling process, must detect brush carrier respectively, judge in the brush carrier that brush connects and whether exist contact resistance and stage clip pressure whether excessive, too small or inhomogeneous between the part.
At present,, also do not have a kind of testing equipment that is used to detect fuel pump brush frame performance, particularly do not have brush in a kind of detection brush carrier of production line formula to connect the automatic high speed testing equipment of part performance at the fuel pump production field.
Summary of the invention
Technical problem to be solved by this invention is: the fuel pump brush performance testing workbench that a kind of detection brush carrier performance of production line formula is provided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
Fuel pump brush performance testing workbench, it comprises base, be arranged on support on the base, be arranged on the propulsive mechanism on the support; The propulsive mechanism bottom is provided with pressure head, and the bottom of pressure head is provided with and is used for the socket that docks with the plug of tested brush carrier; The base of propulsive mechanism below is provided with the brush carrier anchor clamps; Anchor clamps are provided with and are used for respectively two contacts being connected with two brushes in the tested brush carrier.
In the such scheme, the contact is the copper bar; Be provided with the hole in the anchor clamps, the copper bar places in the hole, and the below of copper bar is provided with pressure sensor, and the output of pressure sensor is by handling the input computer.
In the such scheme, copper bar lower end is provided with step, has step on the inwall of hole; Be with stage clip on the copper bar between above-mentioned two steps.
In the such scheme, the bottom of pressure head is provided with push rod, and the upper end of push rod places in the pressure head, is provided with stage clip between pressure head inwall in the pressure head and the push rod.
In the such scheme, be provided with linear track and gag lever post between pressure head and the support; Linear track is fixed on the support; One end of gag lever post is fixedlyed connected with pressure head, and the other end of gag lever post is inserted in the linear track.
In the such scheme, have the groove that inserts for tested brush carrier bottom on the anchor clamps.
In the such scheme, anchor clamps are spliced by three modules in upper, middle and lower, and the bottom of middle module has bin, and pressure sensor is contained in the bin.
The advantage of workbench of the present invention is:
1, before the test, only need that tested brush carrier is placed on anchor clamps and get final product, propulsive mechanism is depressed pressure head, and the socket on the pressure head is docked with plug on the brush carrier, contact on the anchor clamps is connected with the brush of brush carrier lower end at this moment, and test table can connect part resistance to the brush carrier brush to be tested; Test speed is fast, and is simple to operate;
2, its contact is the copper bar, and the below of copper bar is provided with pressure sensor, and the output of pressure sensor can connect part stage clip pressure to the brush carrier brush and test by handling the input computer;
3, being positioned on the pressure sensor at the copper bar is vacant state, and the present invention adopts copper bar spring pre-pressing structure, is provided with pressure sensor on the copper bar, prevents the elegant situation of sensor zero point;
4, at the socket on the pressure head when cylinder returns, easy situation about taking up together with test block, pressure head adopts the discharging push rod structure.
5, pressure head adopts linearity extensible guide structure, pressure head rotation when preventing that propulsive mechanism from pressing down;
6, have the groove that inserts for tested brush carrier bottom on the anchor clamps, can be the brush carrier location easily;
7, pressure sensor is contained in the bin that intermediate module bottom has, so both can make things convenient for the installation of copper bar, stage clip, pressure sensor, can finely tune up and down transducer easily again, test table is in testing process, position that can calibration sensor is used for the typical products in mass production performance detection, shorten sense cycle, reduce production costs; Also can finely tune simultaneously and obtain different pressure and resistance data, by the different test values of resistance, for the optimal design of fuel pump provides reference frame with pressure to pressure sensor.
Description of drawings
Fig. 1 is an embodiment of the invention structure cutaway view
Fig. 2 is the A-A cutaway view of Fig. 1
Fig. 3 is an embodiment of the invention structural representation
Fig. 4 is the A place enlarged drawing of Fig. 3
Fig. 5 connects part Performance Test System block diagram for fuel pump brush
Fig. 6 is the resistance sampling circuit block diagram
Fig. 7 is the system testing flow chart
Embodiment
The embodiment of the invention detects the test table that fuel pump brush connects part resistance and stage clip pressure for the production line formula, and promptly the automobile fuel pump brush connects part resistance and stage clip pressure automatic high speed test table.
Shown in Fig. 1,3, fuel pump brush performance testing workbench comprises base 1, be arranged on support 3 on the base 1, be arranged on the propulsive mechanism 4 on the support 3; Propulsive mechanism 4 bottoms are provided with pressure head 7, and the bottom of pressure head 7 is provided with and is used for the socket (first wife's fuel pump power supply wiring socket) 5 that docks with the plug of tested brush carrier; The base 1 of propulsive mechanism 4 belows is provided with brush carrier anchor clamps 2; Anchor clamps 2 are provided with and are used for respectively two contacts being connected with two brushes in the tested brush carrier.
The bottom of pressure head 7 is provided with push rod 701, and the upper end of push rod 701 places in the pressure head 7, is provided with stage clip 702 between pressure head 7 inwalls in the pressure head 7 and the push rod 701.
Be provided with linear track 301 and gag lever post 703 between pressure head 7 and the support 3; Linear track 301 is fixed on the support 3; One end of gag lever post 703 is fixedlyed connected with pressure head 7, and the other end of gag lever post 703 is inserted in the linear track 301.
As shown in Figure 2, have the groove 212 that inserts for tested brush carrier bottom on the anchor clamps 2.
As shown in Figure 4, two contacts on the anchor clamps 2 be about two copper bars 201; Be provided with two holes, 203, two bronze medal bars 201 in the anchor clamps 2 and place in two holes 203, the below of copper bar 201 is provided with pressure sensor 208, and the output of pressure sensor 208 is by handling the input computer.Copper bar 201 lower ends are provided with step 202, have step 205 on 203 inwalls of hole; Be with stage clip (preloading spring) 204 on the copper bar 201 between above-mentioned two steps 202,205.Anchor clamps 2 are spliced by three modules in upper, middle and lower 206,209,210, and the bottom of middle module 209 has bin 207, and pressure sensor 208 is contained in the bin 207.
Fuel pump brush as shown in Figure 5 connects the part Performance Test System, and it is made up of computer, resistance sampling circuit, fuel pump brush frame performance test workbench of the present invention.Cylinder propulsive mechanism on the computer control test table, mains switch, relay are tested measured piece; Pressure sensor on the test table, the output of resistance sampling circuit are by amplification filtering circuit input computer.
Resistance sampling circuit as shown in Figure 6, because there is not contact resistance in qualified fuel pump, brush connects part resistance little (about 0.5-0.7 Ω), for it is effectively measured, originally comprises constant-current source circuit, standard resistor, two voltage contrasting amplified circuits; Constant-current source flows through testing resistance (brush connects part resistance in the brush carrier 6) and standard resistor respectively, can be respectively record magnitude of voltage on testing resistance and the standard resistor by voltage contrasting amplified circuit, the output of two voltage contrasting amplified circuits is by amplification filtering circuit input computer, computer utilizes standard resistor to calculate the size of electric current, and then can calculate the size of testing resistance.The voltage contrasting amplified circuit two ends of measured resistance are connected with binding post 211, socket 5 on the copper bar 201 respectively.
It is as follows that above-mentioned fuel pump brush connects part Performance Test System testing process (as Fig. 7):
1, before the test, manually workpiece (brush carrier 6) is placed on the anchor clamps 2, the groove 212 on the anchor clamps 2 is inserted in brush carrier 6 bottoms;
2, begin test, the computer starting automatic control system, cylinder presses down, and drives pressure head 7 workpiece is clamped, and the socket on the pressure head docks with plug on the brush carrier, and the copper bar 201 on the anchor clamps is connected with the brush of brush carrier lower end;
3, cylinder is pressed onto the position, near the computer operated switch conducting, sends a signal and gives computer, and system begins reading;
4, computer carries out analysis and judgement to data, draws whether qualified conclusion;
5, cylinder returns;
6, take workpiece away, EOT.
Claims (6)
1, fuel pump brush performance testing workbench is characterized in that: it comprises base (1), be arranged on support (3) on the base (1), be arranged on the propulsive mechanism (4) on the support (3); Propulsive mechanism (4) bottom is provided with pressure head (7), and the bottom of pressure head (7) is provided with and is used for the socket (5) that docks with the plug of tested brush carrier; The base (1) of propulsive mechanism (4) below is provided with brush carrier anchor clamps (2); Anchor clamps (2) are provided with and are used for respectively two contacts being connected with two brushes in the tested brush carrier;
The contact is copper bar (201); Be provided with hole (203) in the anchor clamps (2), copper bar (201) places in the hole (203), and the below of copper bar (201) is provided with pressure sensor (208), and the output of pressure sensor (208) is by handling the input computer.
2, test table as claimed in claim 1 is characterized in that: copper bar (201) lower end is provided with step (202), has step (205) on the inwall of hole (203); Be with stage clip (204) on the copper bar (201) between above-mentioned two steps (202,205).
3, test table as claimed in claim 1 is characterized in that: the bottom of pressure head (7) is provided with push rod (701), and the upper end of push rod (701) places in the pressure head (7), is provided with stage clip (702) between pressure head (7) inwall in the pressure head (7) and the push rod (701).
4, test table as claimed in claim 1 is characterized in that: be provided with linear track (301) and gag lever post (703) between pressure head (7) and the support (3); Linear track (301) is fixed on the support (3); One end of gag lever post (703) is fixedlyed connected with pressure head (7), and the other end of gag lever post (703) is inserted in the linear track (301).
5, test table as claimed in claim 1 is characterized in that: have the groove (212) that inserts for tested brush carrier bottom on the anchor clamps (2).
6, test table as claimed in claim 1, it is characterized in that: anchor clamps (2) are spliced by three modules in upper, middle and lower (206,209,210), the bottom of middle module (209) has bin (207), and pressure sensor (208) is contained in the bin (207).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100192784A CN100448119C (en) | 2005-08-11 | 2005-08-11 | Fuel pump brush performance testing workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100192784A CN100448119C (en) | 2005-08-11 | 2005-08-11 | Fuel pump brush performance testing workbench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1731631A CN1731631A (en) | 2006-02-08 |
| CN100448119C true CN100448119C (en) | 2008-12-31 |
Family
ID=35963947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100192784A Expired - Fee Related CN100448119C (en) | 2005-08-11 | 2005-08-11 | Fuel pump brush performance testing workbench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100448119C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280796B (en) * | 2011-05-25 | 2012-12-19 | 苏州东南碳制品有限公司 | Electric brush disassembling machine |
| CN102364351B (en) * | 2011-07-01 | 2013-12-11 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Engineering machinery rotation brush performance test apparatus and method thereof |
| CN102290699B (en) * | 2011-07-29 | 2013-04-17 | 苏州东南碳制品有限公司 | Automatic electric brush disassembly machine |
| CN104092081A (en) * | 2014-07-10 | 2014-10-08 | 湖州展瑞机电科技有限公司 | Punching mechanism for steering device segment pressing and punching device |
| CN105633759A (en) * | 2016-03-01 | 2016-06-01 | 西南交通大学 | Low-resistance welding apparatus for thin-strip conductor |
| CN110244164B (en) * | 2019-06-20 | 2021-08-03 | 昆山埃维奥电机有限公司 | Brush holder function testing device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001092220A (en) * | 1999-09-24 | 2001-04-06 | Toei Sangyo Kk | Device and method for measuring resistance value and distribution thereof with respect to conductive brush adopted for electrostatic photographic device or the like |
| CN1387047A (en) * | 2002-05-16 | 2002-12-25 | 上海大众汽车有限公司 | Automatic in-line electrophoresis pendulum-arm brush testing system |
| CN2544273Y (en) * | 2002-05-16 | 2003-04-09 | 上海大众汽车有限公司 | Wearing tester for electric brush of hanging tool of conveyer |
| CN1426156A (en) * | 2001-12-11 | 2003-06-25 | 三菱电机株式会社 | AC generator for vehicle and its electric brush wearout detection system |
| WO2004036722A1 (en) * | 2002-10-15 | 2004-04-29 | Team Orion Europe Sa | High-power direct current engine comprising a collector and carbon brushes for a racing car serving as prototype |
-
2005
- 2005-08-11 CN CNB2005100192784A patent/CN100448119C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001092220A (en) * | 1999-09-24 | 2001-04-06 | Toei Sangyo Kk | Device and method for measuring resistance value and distribution thereof with respect to conductive brush adopted for electrostatic photographic device or the like |
| CN1426156A (en) * | 2001-12-11 | 2003-06-25 | 三菱电机株式会社 | AC generator for vehicle and its electric brush wearout detection system |
| CN1387047A (en) * | 2002-05-16 | 2002-12-25 | 上海大众汽车有限公司 | Automatic in-line electrophoresis pendulum-arm brush testing system |
| CN2544273Y (en) * | 2002-05-16 | 2003-04-09 | 上海大众汽车有限公司 | Wearing tester for electric brush of hanging tool of conveyer |
| WO2004036722A1 (en) * | 2002-10-15 | 2004-04-29 | Team Orion Europe Sa | High-power direct current engine comprising a collector and carbon brushes for a racing car serving as prototype |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1731631A (en) | 2006-02-08 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20110811 |