CN204385571U - Rail milling turnning and milling grinding head lifting device and rail milling car - Google Patents
Rail milling turnning and milling grinding head lifting device and rail milling car Download PDFInfo
- Publication number
- CN204385571U CN204385571U CN201420872376.7U CN201420872376U CN204385571U CN 204385571 U CN204385571 U CN 204385571U CN 201420872376 U CN201420872376 U CN 201420872376U CN 204385571 U CN204385571 U CN 204385571U
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- milling
- rail
- main spindle
- spindle box
- lifting device
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Abstract
The utility model provides a kind of rail milling turnning and milling grinding head lifting device and rail milling car.This rail milling turnning and milling grinding head lifting device comprises for being fixed on the bracing frame on milling car and the main spindle box for installing milling head, main spindle box is vertically slidably installed on bracing frame, is provided with the hydraulic cylinder for driving main spindle box to be vertically elevated between bracing frame and main spindle box; On main spindle box and vertically rotate and be equipped with leading screw, be arranged with screw outside leading screw, main spindle box is provided with the drive unit for driving leading screw to rotate; Screw is connected with for detecting the checkout gear with the spacing of rail, checkout gear is connected to controller, and controller is used for controlling hydraulic cylinder when checkout gear detects and contacts with rail and transfers quick condition to by driving condition.The utility model realizes milling head length feed by leading screw and hydraulic cylinder cooperation, and milling head can be made to rise and fall with rail and follow, and the rail quality that milling is gone out is good, reduces the wearing and tearing of milling head, improves application life.
Description
Technical field
The utility model relates to Machine Manufacturing Technology, particularly relates to a kind of rail milling turnning and milling grinding head lifting device and rail milling car.
Background technology
Rail milling car is the reparation that a kind of mode by moulding realizes to rail, and having the advantages such as environmental friendliness, working service cost are low, circuit compliance is good, is a kind of novel track prosthetic appliance.Milling head is the operation unit of rail milling car, because the stroke of milling head movement is larger, and will ensure to ensure that when the operation of milling car milling head can carry out servo-actuated with the fluctuating of rail, therefore, need milling car to need be equipped with rail milling turnning and milling grinding head lifting device.
Current existing rail milling turnning and milling grinding head lifting device directly adopts the mode of leading screw to order about milling head to carry out longitudinal vertical feed motion, in rail dressing process, when rail ascents and descents, feed system cannot determine that milling head whether should feed or withdrawing, easily cause rail grinding irregularity, milling effect is bad.
Utility model content
The utility model provides a kind of rail milling turnning and milling grinding head lifting device and rail milling car, in order to solve defect of the prior art, the milling head lifting device realizing milling car can according to the flat conditions of rail, and the feeding of adjustment milling head, ensures the milling quality of rail automatically.
A kind of rail milling turnning and milling grinding head lifting device, comprise for being fixed on the bracing frame on milling car and the main spindle box for installing milling head, described main spindle box is vertically slidably installed on support frame as described above, is provided with the hydraulic cylinder for driving the vertically oscilaltion of described main spindle box between support frame as described above and described main spindle box; Described main spindle box is vertically rotatably equipped with leading screw, is arranged with screw outside described leading screw, described main spindle box is fixed with the drive unit for driving described leading screw to rotate; Described screw is connected with for detecting the checkout gear with the spacing of rail, described in checkout gear, checkout gear is connected to controller, and described controller is used for controlling described hydraulic cylinder when described checkout gear detects and contacts with rail and is converted to quick condition by driving condition.
Further, the first chamber and second chamber of described hydraulic cylinder are connected to a solenoid operated directional valve respectively by oil pipe, and described solenoid operated directional valve is also connected with a proportional pressure-reducing valve by oil pipe, and described proportional pressure-reducing valve is connected with fuel tank by oil pipe with solenoid operated directional valve.
Further, support frame as described above is vertically provided with guide rail, described main spindle box is provided with the guide groove matched with described guide rail.
Further, described main spindle box is fixedly connected with track base, described guide groove is opened on described track base.
Further, described drive unit comprises motor, and the output shaft of described motor is connected with one speed reducer by shaft coupling, and the output shaft of described reducer is connected with described leading screw.
Further, described leading screw by bearings on described main spindle box.
Further, a fixedly sleeved nut seat outside described screw, described screw is connected with checkout gear by nut seat, and described checkout gear is connected with the bottom of described nut seat.
Further, described hydraulic cylinder and support frame as described above are hinged, and described main spindle box is provided with piston rod holder, and described piston rod and described piston rod holder are hinged.
Further, described piston rod holder is removably mounted on described main spindle box by locking nut.
The utility model also provides a kind of rail milling car, comprises car body, described car body is provided with rail milling turnning and milling grinding head lifting device described above.
The rail milling turnning and milling grinding head lifting device that the utility model provides, by being vertically slidably installed on bracing frame by main spindle box, and drives main spindle box along the oscilaltion of bracing frame vertical direction by hydraulic cylinder, main spindle box arranges leading screw, sheathed screw with matching outside leading screw, leading screw is connected with the drive unit driving leading screw to rotate, screw is connected with for detecting the checkout gear with the spacing of rail, checkout gear is connected to controller, and controller is used for controlling hydraulic cylinder when checkout gear detects that checkout gear contacts with rail and is converted to quick condition by driving condition, when checkout gear touches rail time, then send a signal to controller, controller hydraulic control cylinder is in quick condition, and now can leading screw be driven to rotate by accessory drive, screw band motion detection device is moved upward, main spindle box and milling head are moved downward, when milling head touches rail, milling head starts to carry out milling to rail, carry out in the process of milling at milling car along rail length direction, upward slope or the descending of rail can be run into, because hydraulic cylinder is in quick condition, main spindle box can be driven to fluctuate under the impact that checkout gear can be made to rise and fall in the gradient of rail, and be arranged on main spindle box due to milling head, thus the oscilaltion of milling head is driven, namely, milling head can be followed floating with floating of main spindle box, realize reliably feeding, prevent the wearing and tearing of milling head, improve the application life of apparatus for work.
Accompanying drawing explanation
The front view of the rail milling turnning and milling grinding head lifting device that Fig. 1 provides for the utility model embodiment;
The top view of the rail milling turnning and milling grinding head lifting device that Fig. 2 provides for the utility model embodiment;
Fig. 3 be in Fig. 2 A-A to sectional view;
Fig. 4 be in Fig. 2 B-B to sectional view;
The structural representation of the hydraulic cylinder that Fig. 5 provides for the utility model one embodiment.
Reference numeral:
1-bracing frame; 2-main spindle box; 21-gripper shoe;
3-hydraulic cylinder; 31-first chamber; 32-second chamber;
4-leading screw; 5-screw; 6-drive unit;
61-motor; 62-shaft coupling; 63-reducer;
7-checkout gear; 8-solenoid operated directional valve; 9-proportional pressure-reducing valve;
10-fuel tank; 11-controller; 12-guide rail;
13-guide groove; 14-track base; 15-nut seat;
16-locking nut; 17-piston rod holder.
Detailed description of the invention
For the utility model object, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in utility model embodiment, technical scheme in utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.
The front view of the rail milling turnning and milling grinding head lifting device that Fig. 1 provides for the utility model embodiment; The top view of the rail milling turnning and milling grinding head lifting device that Fig. 2 provides for the utility model embodiment; Fig. 3 be in Fig. 2 A-A to sectional view; Fig. 4 be in Fig. 2 B-B to sectional view.Please specifically with reference to accompanying drawing 1-4, the present embodiment provides a kind of rail milling turnning and milling grinding head lifting device, comprise for being fixed on the bracing frame 1 on milling car and the main spindle box 2 for installing milling head (not shown), main spindle box 2 is vertically slidably installed on bracing frame 1, is provided with the hydraulic cylinder 3 for driving main spindle box 2 vertically oscilaltion between bracing frame 1 and main spindle box 2; Main spindle box 2 is vertically rotatably equipped with leading screw 4, is arranged with screw 5 outside leading screw 4, main spindle box 2 is fixed with the drive unit 6 for driving leading screw 4 to rotate; Screw 5 is connected with for detecting the checkout gear 7 with the spacing of rail, checkout gear 7 is connected to controller (not shown), and controller is used for controlling hydraulic cylinder 3 when checkout gear 7 detects that checkout gear contacts with rail and is converted to quick condition by driving condition.
Concrete, vertical direction refers to the direction perpendicular to horizontal plane, bracing frame 1 can be fixedly installed on milling car, the inside of main spindle box 2 can be welded with multiple gripper shoe 21 in the horizontal direction, hydraulic cylinder 3 is connected with gripper shoe 21, sheathed screw 5 outside leading screw 4, checkout gear 7 can be arranged on the bottom of screw 5, and be positioned at the below of main spindle box 2, checkout gear 7 specifically can comprise the positioner for being pressed on rail, and the proximity switch arranged on the positioning device, controller is connected with proximity switch, controller receives the signal of proximity switch input and judges, and then according to the switching of judged result hydraulic control cylinder 3 status, namely quick condition is switched to by driving condition.
Wherein the quick condition of hydraulic cylinder 3 refers to, the rodless cavity of hydraulic cylinder 3 is connected by oil pipe with rod chamber, and the pressure moment of rod chamber and rodless cavity is equal; And namely driving condition refers to not be connected between the rodless cavity of hydraulic cylinder 3 and rod chamber, piston is pushed by the driving of hydraulic oil, such as, by the rodless cavity conveying liquid force feed of oil pump to hydraulic cylinder 3, and under the effect of hydraulic oil, due to the pressure differential of rod chamber and rodless cavity, and drive piston to move to rod chamber, that is, under the effect of hydraulic oil, piston is stretched out; Or, by the rod chamber conveying liquid force feed of oil pump to hydraulic cylinder 3, and under the effect of hydraulic oil, due to the pressure differential of rod chamber and rodless cavity, and drive piston to move to rodless cavity, that is, under the effect of hydraulic oil, piston retracted.Particularly, can come by the switching of driving condition to quick condition by controlling the magnitude of voltage different from the switching of the solenoid operated directional valve that hydraulic cylinder 3 connects and given proportional pressure-reducing valve, and hydraulic oil inputs or rodless cavity input from the rod chamber of hydraulic cylinder 3, namely controls the throughput direction of fluid.
Leading screw 4 can be fixedly supported on main spindle box 2 by bearing, to ensure that leading screw 4 is beyond the straightness accuracy of vertical direction, can also realize rotating, and also can reduce the frictional force between leading screw 4 and main spindle box 2 when rotating in main spindle box.
At the rail milling turnning and milling grinding head lifting device that the present embodiment provides, in concrete use procedure, first, moved to by milling car above the rail this device being positioned at need milling, first give the rod chamber of hydraulic cylinder 3 logical oil, the piston rod of hydraulic cylinder 3 is retracted, thus drive main spindle box 2 to decline, because checkout gear 7 is arranged on main spindle box 2, thus be with motion detection device 7 to lower feeding, when checkout gear 7 touches rail, checkout gear 7 sends a signal to controller, thus controller controls to make hydraulic cylinder 3 be in quick condition, now, can accessory drive 6 drive leading screw 4 rotate forward (here suppose leading screw 4 rotate forward make screw 5 increase, reversion makes screw 5 decline), screw 5 rises and is with motion detection device 7 to move upward, main spindle box 2 and milling head decline, it should be noted that, after checkout gear 7 drops to contact rail level, due to the impact of gravity, the power of downward 1.5t can be there is always, therefore checkout gear 7 contacts with rail always, and can not rail level be departed from.Milling head also can arrange corresponding checkout gear, specifically for detecting the vertical distance between milling head and rail, namely the amount of feeding of milling head is detected, checkout gear detects the distance between milling head and rail in real time, and the forward or reverse (namely controlling rising or the decline of milling head) of accessory drive 6 in real time; Afterwards in the process of milling head milling rail, milling car travels forward along the length direction of rail, such as, when running into rail upward slope place, rail makes checkout gear 7 upwards raise, now just because hydraulic cylinder is in quick condition, therefore, main spindle box 2 can be followed and upwards be elevated, and the milling head be thus fixed on main spindle box 2 is also elevated, and milling amount is diminished, now, drive unit 6 just can drive leading screw 4 to rotate, and makes milling head decline feeding, the amount of feeding required during to reach milling; When running into the rail gradient and diminishing, rail makes checkout gear 7 decline, now just because hydraulic cylinder is in quick condition, therefore, main spindle box 2 can and then decline, thus the milling head be fixed on main spindle box 2 also follows decline, make milling quantitative change large, now, drive unit 6 just can drive leading screw 4 counter-rotation, milling head is made to increase, the amount of feeding required during to reach milling; Checkout gear 7 is connected with main spindle box 2, hydraulic cylinder 3 is connected with main spindle box 2, and hydraulic cylinder 3 is in quick condition, the piston of hydraulic cylinder 3 can along with the change of the rail gradient free-extension, therefore, main spindle box 2 can followed by with rail slope change and rise or decline, that is, make milling head can rise and fall with the fluctuating of rail.
As from the foregoing, the rail milling turnning and milling grinding head lifting device that the present embodiment provides, adopt the mode coordinating feeding of leading screw and hydraulic cylinder, make milling head can be servo-actuated up and down with the fluctuating of rail, realize reliably feeding, prevent the wearing and tearing of milling head, the application life of apparatus for work can be improved further.
Meanwhile, owing to adopting secondary feeding, by the hydraulic feed of the first order, realize the length feed of Long Distances, the leading screw feeding of the second level, realizes the little amount of feeding, high-precision feeding, overcome in prior art and only adopt leading screw to realize roughing feed and little feeding, therefore the stroke of leading screw also be there are certain requirements, and if stroke is long, namely the length of leading screw is long, also necessarily require the defect that the strength and stiffness of leading screw are very high, the feeding of the Long Distances in the confined space can be realized.
The structural representation of the hydraulic cylinder that Fig. 5 provides for the utility model one embodiment; As shown in Figure 5, first chamber 31 of hydraulic cylinder 3 and the second chamber 32 are connected to a solenoid operated directional valve 8 respectively by oil pipe, solenoid operated directional valve 8 is also connected with a proportional pressure-reducing valve 9 by oil pipe, proportional pressure-reducing valve 9 is connected with fuel tank 10 by oil pipe with solenoid operated directional valve 8, controller 11 and solenoid operated directional valve 8 and proportional pressure-reducing valve 9 Electricity Federation; Concrete, such as, when needs drive milling head to rise, by controller 11 control ratio reducing valve 9 and solenoid operated directional valve 8, make hydraulic oil enter the second chamber 32 of hydraulic cylinder 3, piston rod stretches out; When needs drive milling head to decline, by controller 11 control ratio reducing valve 9 and solenoid operated directional valve 8, the first chamber 31 of hydraulic cylinder 3 is communicated with the second chamber 32, makes hydraulic oil enter the first chamber 31 of hydraulic cylinder 3, piston rod shrinks; When needs hydraulic cylinder 3 is in quick condition, by controller 11 control ratio reducing valve 9 and solenoid operated directional valve 8, the first chamber 31 (rod chamber) of hydraulic cylinder 3 is communicated with the second chamber 32 (rodless cavity); When milling head is when upwards floating, hydraulic cylinder 3 piston rod moves, the hydraulic oil that first chamber 31 is discharged all flows to the second chamber 32, hydraulic oil due to the first chamber, chamber 31 discharge can not fill up the vacancy in the second chamber 32 when piston rod rises, now hydraulic cylinder 3 liang of cavity pressures decline, the P hydraulic fluid port of proportional pressure-reducing valve 9 is opened to the passage of A hydraulic fluid port, and hydraulic oil flows into two chambeies of hydraulic cylinder 3 through proportional pressure-reducing valve 9 from hydraulic oil container 10, until the oil pressure in hydraulic cylinder 3 reaches the scheduled pressure value of proportional pressure-reducing valve 9; When milling head is when floating downwards, the hydraulic oil part that the second chamber 32 is discharged flows to the first chamber 31, and unnecessary hydraulic oil flows back to fuel tank 10 through proportional pressure-reducing valve T mouth.
Further, for make main spindle box 2 can on bracing frame 1 vertically upper and lower linear slide, guide rail 12 can be vertically set on bracing frame 1, the quantity of guide rail 12 can be two, main spindle box 2 is provided with the guide groove 13 matched with guide rail 12, and the guiding form adopting guide rail 12 to match with guide groove 13 realizes the slide-and-guide of main spindle box 2.Such as, or can also be the relative sliding that the form led by guide pillar realizes main spindle box 2 and bracing frame 1 support, arrange long guide pillar at the side of bracing frame 1, the side of main spindle box 2 arranges long guide pin bushing, realizes relative sliding by guide pin bushing with coordinating of guide pillar.Concrete, guide groove 13 can be the long recess extended along main spindle box 2 vertical direction; Also can be by being vertically fixedly connected with track base 14 on main spindle box 2, guide groove 13 is opened on track base 14, the quantity of track base 14 can be multiple, and be uniformly distributed along the bearing of trend of guide rail 12, take multiple track base 14 to match with guide rail 12 to realize leading, track base 14 is compared to the form directly offering long recess on main spindle box 2, and its processing is got up simpler.
Certain guide rail 12 also can conversely with the setting position of guide groove 13, that is, guide groove 13 can be arranged on bracing frame 1, and guide rail 12 is arranged on main spindle box 2.
Drive unit 6 can comprise motor 61, and the output shaft of motor 61 is connected with one speed reducer 63 by shaft coupling 62, and the output shaft of reducer 63 is connected with leading screw 4.By providing output speed at motor 61, then adjusting output speed size by reducer 63, making the rotary speed of leading screw 4 control in suitable size, further improve the safety and stability energy of device work.
In the above-described embodiments, can a fixedly sleeved nut seat 15 outside screw 5, screw 5 is connected with checkout gear 7 by nut seat 15, and checkout gear 7 is connected to the bottom of nut seat 15; Nut seat 15 is that the setting of checkout gear 7 provides installing space.
Hydraulic cylinder 3 and bracing frame 1 are hinged, and main spindle box 2 is provided with piston rod holder 17, and piston rod and piston rod holder 17 are hinged, and piston rod holder 17 is removably mounted on main spindle box 2 by locking nut 16.Specifically, hydraulic cylinder 3 two ends are hinged on main spindle box 2 and bracing frame 1 respectively, make hydraulic cylinder 3 be not that perfect rigidity is fixedly connected with bracing frame 1 and main spindle box 2, hydraulic cylinder 3 can be facilitated to disassemble from bracing frame 1 and main spindle box 2, and it is more flexible that hydraulic cylinder 3 is worked together.
The utility model also provides a kind of rail milling car, comprises car body, car body is provided with above-mentioned rail milling turnning and milling grinding head lifting device.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a rail milling turnning and milling grinding head lifting device, comprise for being fixed on the bracing frame on milling car and the main spindle box for installing milling head, it is characterized in that, described main spindle box is vertically slidably installed on support frame as described above, is provided with the hydraulic cylinder for driving the vertically oscilaltion of described main spindle box between support frame as described above and described main spindle box; Described main spindle box is vertically rotatably equipped with leading screw, is arranged with screw outside described leading screw, described main spindle box is fixed with the drive unit for driving described leading screw to rotate; Described screw is connected with for detecting the checkout gear with the spacing of rail, described checkout gear is connected to controller, and described controller is used for controlling described hydraulic cylinder when described checkout gear detects and contacts with rail and is converted to quick condition by driving condition.
2. rail milling turnning and milling grinding head lifting device according to claim 1, is characterized in that,
First chamber and second chamber of described hydraulic cylinder are connected to a solenoid operated directional valve respectively by oil pipe, and described solenoid operated directional valve is also connected with a proportional pressure-reducing valve by oil pipe, and described proportional pressure-reducing valve is connected with fuel tank by oil pipe with solenoid operated directional valve.
3. rail milling turnning and milling grinding head lifting device according to claim 1, it is characterized in that, support frame as described above is vertically provided with guide rail, described main spindle box is provided with the guide groove matched with described guide rail.
4. rail milling turnning and milling grinding head lifting device according to claim 3, it is characterized in that, described main spindle box is fixedly connected with track base, and described guide groove is opened on described track base.
5. rail milling turnning and milling grinding head lifting device according to claim 1, it is characterized in that, described drive unit comprises motor, and the output shaft of described motor is connected with one speed reducer by shaft coupling, and the output shaft of described reducer is connected with described leading screw.
6. rail milling turnning and milling grinding head lifting device according to claim 1, is characterized in that, described leading screw by bearings on described main spindle box.
7. rail milling turnning and milling grinding head lifting device according to claim 6, it is characterized in that, a fixedly sleeved nut seat outside described screw, described screw is connected with described checkout gear by nut seat, and described checkout gear is connected with the bottom of described nut seat.
8. rail milling turnning and milling grinding head lifting device according to claim 1, it is characterized in that, described hydraulic cylinder and support frame as described above are hinged, and described main spindle box is provided with piston rod holder, and described piston rod and described piston rod holder are hinged.
9. rail milling turnning and milling grinding head lifting device according to claim 8, it is characterized in that, described piston rod holder is removably mounted on described main spindle box by locking nut.
10. a rail milling car, comprises car body, it is characterized in that, described car body is provided with the rail milling turnning and milling grinding head lifting device as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872376.7U CN204385571U (en) | 2014-12-31 | 2014-12-31 | Rail milling turnning and milling grinding head lifting device and rail milling car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420872376.7U CN204385571U (en) | 2014-12-31 | 2014-12-31 | Rail milling turnning and milling grinding head lifting device and rail milling car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204385571U true CN204385571U (en) | 2015-06-10 |
Family
ID=53358304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420872376.7U Withdrawn - After Issue CN204385571U (en) | 2014-12-31 | 2014-12-31 | Rail milling turnning and milling grinding head lifting device and rail milling car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204385571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532699A (en) * | 2014-12-31 | 2015-04-22 | 北京二七轨道交通装备有限责任公司 | Steel rail milling and grinding vehicle milling and grinding head lifting device and steel rail milling and grinding vehicle |
| CN106715799A (en) * | 2014-07-29 | 2017-05-24 | 利岑机械制造和铸造有限公司 | Rail vehicle having a device for finishing the running surface of track rails |
-
2014
- 2014-12-31 CN CN201420872376.7U patent/CN204385571U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106715799A (en) * | 2014-07-29 | 2017-05-24 | 利岑机械制造和铸造有限公司 | Rail vehicle having a device for finishing the running surface of track rails |
| CN106715799B (en) * | 2014-07-29 | 2019-09-17 | 利岑机械制造和铸造有限公司 | The rail vehicle of equipment with the working face for post-processing track |
| CN104532699A (en) * | 2014-12-31 | 2015-04-22 | 北京二七轨道交通装备有限责任公司 | Steel rail milling and grinding vehicle milling and grinding head lifting device and steel rail milling and grinding vehicle |
| CN104532699B (en) * | 2014-12-31 | 2016-06-29 | 中车北京二七机车有限公司 | Rail milling turnning and milling grinding head lifting device and rail milling car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150610 Effective date of abandoning: 20160629 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |