CN106950110A - Hydraulic drive type connecting rod screw stretching-machine - Google Patents
Hydraulic drive type connecting rod screw stretching-machine Download PDFInfo
- Publication number
- CN106950110A CN106950110A CN201710286660.4A CN201710286660A CN106950110A CN 106950110 A CN106950110 A CN 106950110A CN 201710286660 A CN201710286660 A CN 201710286660A CN 106950110 A CN106950110 A CN 106950110A
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- CN
- China
- Prior art keywords
- connecting rod
- rod screw
- stretching
- valve
- hydraulic cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002441 reversible effect Effects 0.000 claims abstract description 12
- 239000002828 fuel tank Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 1
- 230000003137 locomotive effect Effects 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0266—Cylindrical specimens
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of hydraulic drive type connecting rod screw stretching-machine, including workbench, flange, hydraulic cylinder assembly, expanding sleeve clamping fixture seat, expanding sleeve, connecting rod screw, reversible ratcheting tool and support system, compared with prior art, the present invention can be widely used in railway locomotive depot repairing I. C. locomotive workshop, also it is applied to diesel locomotive connecting rod screw accessory workshop, it is not only cost-effective, and can controllably ensure that connecting rod screw is pre-stretched quality, control accuracy and accuracy of detection are high, error can be controlled within 3%, and with real operability, the stretching-machine design completed by this scheme fully meets the Production requirement at scene.The main innovation point of the invention is micro- oscillating motor assembly connection design, and base support means install light-duty radial bearing, is rotated with realizing that this link is connected close to the higher pair that zero energy is lost, with the value promoted the use of.
Description
Technical field
Drawn the present invention relates to machine components deflection detection technique field, more particularly to a kind of hydraulic drive type connecting rod screw
Stretch machine.
Background technology
Connecting rod screw is diesel locomotive connecting rod assembling vital part, in order to ensure that pretightning force is stable, it is desirable to which screw, which has, to be filled
Divide reliable elastic performance, require to carry out pre-stretching experiment before assembly for this, reaching with confirmation can be complete after certain amount of tension
Recoil to initial length entirely.Tension test is the first procedure in the assembling of diesel locomotive connecting rod.Existing chain connection type stretching
Machine is manufactured and designed by specialized factory, high cost, is safeguarded inconvenient, is only applicable to large scale computer depot internal combustion engine workshop and uses,
The small-sized assembling in Along Railway Locomotive Overhaul workshop is not easy to use.
The content of the invention
The purpose of the present invention, which is that, provide a kind of hydraulic drive type connecting rod screw stretching-machine to solve the above problems.
The present invention is achieved through the following technical solutions above-mentioned purpose：
The present invention includes workbench, flange, hydraulic cylinder assembly, expanding sleeve clamping fixture seat, expanding sleeve, connecting rod screw, two-way spine
Wheel spanner and support system, the rear end of the hydraulic cylinder assembly are fixedly connected by the flange with the workbench, the liquid
The front end of cylinder pressure assembly is connected by the support system with the workbench, the piston rod of the hydraulic cylinder assembly with it is described double
Connected to the drive end of ratchet spanner, the reversible ratcheting tool is connected positioned at the stretching set upper side, the expanding sleeve is located at
On the expanding sleeve clamping fixture seat, the connecting rod screw is located in the expanding sleeve, the other end of the connecting rod screw with it is described double
It is threadedly coupled to ratchet spanner.
As improvement, the afterbody of the expanding sleeve is provided with measuring system.
Further, be additionally provided with fuel tank, filter, gear pump, electromagnetic relief valve, the first two-position two-way electromagnetic directional valve,
Check valve, flow speed control valve and the second two-position two-way electromagnetic directional valve, the fuel tank pass through the filter and the input of gear pump
Connection, the output end of the gear pump is connected with electromagnetic relief valve and the first two-position two-way electromagnetic directional valve simultaneously, the one or two
Two electric change valves are connected by check valve and flow speed control valve with the second two-position two-way electromagnetic directional valve, second bi-bit bi-pass
Solenoid directional control valve is connected with the hydraulic cylinder assembly.
The beneficial effects of the present invention are：
The present invention is a kind of hydraulic drive type connecting rod screw stretching-machine, and compared with prior art, the present invention can be transported extensively
For railway locomotive depot repairing I. C. locomotive workshop, also suitable for diesel locomotive connecting rod screw accessory workshop, not only save
Cost, and can controllably ensure that connecting rod screw is pre-stretched quality, control accuracy and accuracy of detection are high, can control error
Within 3%, 6% error of Element Design permission is fully met.Data herein be based on amount of tension design load be 0.66 ±
0.02mm, centimeter check device precision is 0.01mm.The present invention has real operability, the stretching-machine completed by this scheme
Design fully meets the Production requirement at scene.The main innovation point of the invention is micro- oscillating motor assembly connection design, bottom
Portion's support meanss install light-duty radial bearing, are rotated with realizing that this link is connected close to the higher pair that zero energy is lost.With popularization
The value used.
Brief description of the drawings
Fig. 1 is the side structure sectional view of the present invention；
Fig. 2 is the overlooking the structure diagram of the present invention；
Fig. 3 is the HYDRAULIC CONTROL SYSTEM structural representation of the present invention.
In figure：1- workbench；2- flanges；3- hydraulic cylinder assemblies；4- expanding sleeve clamping fixture seats；5- expanding sleeves；6- connects
Bar screw；7- measuring systems；8- reversible ratcheting tools；9- support systems；31- fuel tanks；32- filters；33- gears
Pump；34- electromagnetic relief valves；The two-position two-way electromagnetic directional valves of 35- first；36- check valves；37- flow speed control valves；38- the two or two
Two electric change valves of position.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2：The present invention includes workbench 1, flange 2, hydraulic cylinder assembly 3, expanding sleeve clamping fixture seat 4, stretching
Set 5, connecting rod screw 6, reversible ratcheting tool 8 and support system 9, the rear end of the hydraulic cylinder assembly 3 passes through the flange 2 and institute
State workbench 1 to be fixedly connected, the front end of the hydraulic cylinder assembly 3 is connected by the support system 9 with the workbench 1, institute
The piston rod for stating hydraulic cylinder assembly 3 is connected with the drive end of the reversible ratcheting tool 8, and the reversible ratcheting tool 8 is located at institute
The connection of the upper end of expanding sleeve 5 is stated, the expanding sleeve 5 is located on the expanding sleeve clamping fixture seat 4, the connecting rod screw 6 is located at described draw
Stretch in set 5, the other end of the connecting rod screw 6 is threadedly coupled with the reversible ratcheting tool 8.
As improvement, the afterbody of the expanding sleeve 5 is provided with measuring system 7.
Flange 2 is fastened on workbench 1, and hydraulic cylinder assembly 3 coordinates with the center pillar of flange 2 formation small―gap suture, in push-and-pull
During can realize micro- swing, i.e. Small-angle Rotation, tighten after bolt and first to confirm current read in the dial gauge of measuring system 7
Number, hydraulic cylinder assembly 3 moves back and forth to promote reversible ratcheting tool 8 to rotate, and drivening rod screw 6 continues in expanding sleeve 5
Rotation is elongated, and the measuring system 7 for being installed in workbench 1 carries out real-time accurate detection to amount of elongation, and amount to be tensioned reaches predetermined number
Reversely unclamped after value, reading confirms complete resilience again, single-piece stretching is completed.
As shown in Figure 3：It is additionally provided with fuel tank 31, filter 32, gear pump 33, electromagnetic relief valve 34, the first bi-bit bi-pass
Solenoid directional control valve 35, check valve 36, the two-position two-way electromagnetic directional valve 38 of flow speed control valve 37 and second, the fuel tank 31 pass through the mistake
Filter 32 is connected with the input of gear pump 33, the output end of the gear pump 33 simultaneously with electromagnetic relief valve 34 and the one or two
Two electric change valves 35 are connected, and the first two-position two-way electromagnetic directional valve 35 passes through check valve 36 and flow speed control valve 37 and the two or two
Two electric change valves 38 are connected, and second two-position two-way electromagnetic directional valve 38 is connected with the hydraulic cylinder assembly 3.
Because the load of executive component in the system changes greatly, and movement velocity requirement is stablized relatively, within the system
Speed control loop using flow speed control valve carry out speed governing.Quickly retract, to improve operating efficiency, therefore adopt after being entered due to system requirements work
Carried out with check valve and flow speed control valve it is in parallel, so as to play a part of unidirectional speed governing.In the course of work of stretching-machine, hydraulic cylinder is lived
Stopper rod moves reciprocatingly, and the two-position two-way electromagnetic directional valve controlled using travel switch carries out the direction controlling of liquid stream, so as to protect
The good work of card is entered and rewind.In order to avoid frequently opening and closing drive motor, relief circuit is designed, is carried out using electromagnetic relief valve
Off-load, makes pump be operated under the power output of very little, so as to reduce system heat generation, extends the service life of hydraulic pump.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (3)
1. a kind of hydraulic drive type connecting rod screw stretching-machine, it is characterised in that：Including workbench, flange, hydraulic cylinder assembly, stretching
Sleeve clamp seat, expanding sleeve, connecting rod screw, reversible ratcheting tool and support system, the rear end of the hydraulic cylinder assembly pass through described
Flange is fixedly connected with the workbench, and the front end of the hydraulic cylinder assembly is connected by the support system and the workbench
Connect, the piston rod of the hydraulic cylinder assembly is connected with the drive end of the reversible ratcheting tool, and the reversible ratcheting tool is located at
The stretching set upper side connection, the expanding sleeve is located on the expanding sleeve clamping fixture seat, and the connecting rod screw is located at the stretching
In set, the other end of the connecting rod screw is threadedly coupled with the reversible ratcheting tool.
2. hydraulic drive type connecting rod screw stretching-machine according to claim 1, it is characterised in that：The afterbody of the expanding sleeve
It is provided with measuring system.
3. hydraulic drive type connecting rod screw stretching-machine according to claim 1, it is characterised in that：It is additionally provided with fuel tank, mistake
Filter, gear pump, electromagnetic relief valve, the first two-position two-way electromagnetic directional valve, check valve, flow speed control valve and the second bi-bit bi-pass electromagnetism
Reversal valve, the fuel tank is connected by the input of the filter and gear pump, the output end of the gear pump simultaneously with electricity
Magnetic overflow valve and the connection of the first two-position two-way electromagnetic directional valve, the first two-position two-way electromagnetic directional valve pass through check valve and flow speed control valve
It is connected with the second two-position two-way electromagnetic directional valve, second two-position two-way electromagnetic directional valve is connected with the hydraulic cylinder assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286660.4A CN106950110A (en) | 2017-04-27 | 2017-04-27 | Hydraulic drive type connecting rod screw stretching-machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286660.4A CN106950110A (en) | 2017-04-27 | 2017-04-27 | Hydraulic drive type connecting rod screw stretching-machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106950110A true CN106950110A (en) | 2017-07-14 |
Family
ID=59476922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710286660.4A Pending CN106950110A (en) | 2017-04-27 | 2017-04-27 | Hydraulic drive type connecting rod screw stretching-machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106950110A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206038429U (en) * | 2016-08-04 | 2017-03-22 | 上海华龙测试仪器股份有限公司 | Afterburning formula flat push anchor clamps testing machine of servo electric jar |
| CN206683959U (en) * | 2017-04-27 | 2017-11-28 | 兰州交通大学 | Hydraulic drive type connecting rod screw stretching-machine |
-
2017
- 2017-04-27 CN CN201710286660.4A patent/CN106950110A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206038429U (en) * | 2016-08-04 | 2017-03-22 | 上海华龙测试仪器股份有限公司 | Afterburning formula flat push anchor clamps testing machine of servo electric jar |
| CN206683959U (en) * | 2017-04-27 | 2017-11-28 | 兰州交通大学 | Hydraulic drive type connecting rod screw stretching-machine |
Non-Patent Citations (1)
| Title |
|---|
| 徐万鹏等: "内燃机车柴油机连杆螺钉液压式拉伸机设计", 《机械研究与应用》 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |