CN206683959U - Hydraulic drive type connecting rod screw stretching-machine - Google Patents
Hydraulic drive type connecting rod screw stretching-machine Download PDFInfo
- Publication number
- CN206683959U CN206683959U CN201720454099.1U CN201720454099U CN206683959U CN 206683959 U CN206683959 U CN 206683959U CN 201720454099 U CN201720454099 U CN 201720454099U CN 206683959 U CN206683959 U CN 206683959U
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- CN
- China
- Prior art keywords
- connecting rod
- rod screw
- stretching
- valve
- hydraulic cylinder
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- 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.)
- Expired - Fee Related
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Abstract
The utility model 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 utility model 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 it 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 there is real operability, the stretching-machine design completed by this scheme fully meets the production requirement at scene.The main innovation point of the utility model is micro- oscillating motor assembly connection design, and base support means install light-duty radial bearing, is rotated with realizing that this link connects close to the higher pair that zero energy is lost, has the value promoted the use of.
Description
Technical field
It the utility model is related to machine components deflection detection technique field, more particularly to a kind of hydraulic drive type connecting rod spiral shell
Follow closely stretching-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, can be complete after reaching certain amount of tension with confirmation
Recoil to initial length entirely.Tension test is the first procedure in the assembling of diesel locomotive connecting rod.Existing hinge connection type stretching
Machine is manufactured and designed by specialized factory, and cost is high, and it is inconvenient to safeguard, is only applicable to large scale computer depot internal combustion engine workshop and is used,
The small-sized assembling in Along Railway Locomotive Overhaul workshop is not easy to use.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of hydraulic drive type connecting rod screw and draw
Stretch machine.
The utility model is achieved through the following technical solutions above-mentioned purpose：
The utility model includes workbench, flange, hydraulic cylinder assembly, expanding sleeve clamping fixture seat, expanding sleeve, connecting rod screw, double
To ratchet spanner and support system, the rear end of the hydraulic cylinder assembly is fixedly connected by the flange with the workbench, institute
The front end for stating hydraulic cylinder assembly is connected by the support system with the workbench, the piston rod of the hydraulic cylinder assembly and institute
The drive end connection of reversible ratcheting tool is stated, the reversible ratcheting tool is positioned at stretching set upper side connection, the expanding sleeve
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 and institute
State reversible ratcheting tool threaded connection.
As an 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 are 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 utility model are：
The utility model is a kind of hydraulic drive type connecting rod screw stretching-machine, compared with prior art, the utility model energy
Railway locomotive depot repairing I. C. locomotive workshop is enough widely used in, also suitable for 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, can be by error
It can control within 3%, fully meet 6% error of Element Design permission.Data herein are based on amount of tension design load
0.66 ± 0.02mm, centimeter check device precision are 0.01mm.The utility model has real operability, complete by this scheme
Into stretching-machine design fully meet scene production requirement.The main innovation point of the utility model is that micro- oscillating motor is total
Designed into connection, base support means install light-duty radial bearing, to realize that this link connects close to the higher pair that zero energy is lost
Rotate, there is the value promoted the use of.
Brief description of the drawings
Fig. 1 is side structure sectional view of the present utility model；
Fig. 2 is overlooking the structure diagram of the present utility model；
Fig. 3 is HYDRAULIC CONTROL SYSTEM structural representation of the present utility model.
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 utility model is described in further detail below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2：The utility model include workbench 1, flange 2, hydraulic cylinder assembly 3, expanding sleeve clamping fixture seat 4,
Expanding sleeve 5, connecting rod screw 6, reversible ratcheting tool 8 and support system 9, the rear end of the hydraulic cylinder assembly 3 pass through the flange 2
It is fixedly connected with the workbench 1, the front end of the hydraulic cylinder assembly 3 is connected by the support system 9 and the workbench 1
Connect, the piston rod of the hydraulic cylinder assembly 3 is connected with the drive end of the reversible ratcheting tool 8, the reversible ratcheting tool 8
Connected in the upper end of expanding sleeve 5, the expanding sleeve 5 is located on the expanding sleeve clamping fixture seat 4, and the connecting rod screw 6 is located at institute
State in expanding sleeve 5, the other end of the connecting rod screw 6 is threadedly coupled with the reversible ratcheting tool 8.
As an 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 forms small―gap suture with the center pillar of flange 2 and coordinated, in push-and-pull
During can realize micro- swing, i.e. Small-angle Rotation, tighten the dial gauge after bolt first in measuring system 7 and confirm to read at present
Number, hydraulic cylinder assembly 3 are moved back and forth so as 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, and 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 connect, 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 relatively stable, within the system
Speed control loop using flow speed control valve carry out speed governing.Quickly retract after being entered due to system requirements work, to improve operating efficiency, therefore adopt
Carried out with check valve with 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 direction controlling of liquid stream is carried out using the two-position two-way electromagnetic directional valve of travel switch control, so as to protect
Good work is demonstrate,proved to enter 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, pump is operated under the power output of very little, so as to reduce system heat generation, extend the service life of hydraulic pump.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (3)
- A kind of 1. 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 Stretching set upper side connection, the expanding sleeve are 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 are 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 |
|---|---|---|---|
| CN201720454099.1U CN206683959U (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 |
|---|---|---|---|
| CN201720454099.1U CN206683959U (en) | 2017-04-27 | 2017-04-27 | Hydraulic drive type connecting rod screw stretching-machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206683959U true CN206683959U (en) | 2017-11-28 |
Family
ID=60405978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720454099.1U Expired - Fee Related CN206683959U (en) | 2017-04-27 | 2017-04-27 | Hydraulic drive type connecting rod screw stretching-machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206683959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950110A (en) * | 2017-04-27 | 2017-07-14 | 兰州交通大学 | Hydraulic drive type connecting rod screw stretching-machine |
-
2017
- 2017-04-27 CN CN201720454099.1U patent/CN206683959U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950110A (en) * | 2017-04-27 | 2017-07-14 | 兰州交通大学 | Hydraulic drive type connecting rod screw stretching-machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20180427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |