CN207902441U - A kind of travel wheel mechanism with function of auto-lift for track trolley - Google Patents
A kind of travel wheel mechanism with function of auto-lift for track trolley Download PDFInfo
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- CN207902441U CN207902441U CN201721794768.6U CN201721794768U CN207902441U CN 207902441 U CN207902441 U CN 207902441U CN 201721794768 U CN201721794768 U CN 201721794768U CN 207902441 U CN207902441 U CN 207902441U
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- track
- travel wheel
- trolley
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- wheel
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Abstract
The utility model is related to a kind of travel wheel mechanisms with function of auto-lift for track trolley, the travel wheel mechanism has the function of traveling, hydraulic lifting function and fastening limit function, and can realize can safely and reliably advance, lifts and fasten limit between track trolley and I shape track.Including：Travel configuration, hydraulic lifting structure and fastening position limiting structure；Travel configuration includes the travel wheel coordinated with I shape track；Hydraulic lifting structure includes the hydraulic cylinder for making it be detached from or contact with I shape track for driving the travel wheel to rise or fall；When the travel wheel and the I shape track contact, track trolley is supported on by travel wheel in the I shape track, and track trolley is in travel condition at this time；When the travel wheel and I shape track are detached from, track trolley is supported on the supporting rack of I shape track both sides, and carries out fastening limit to track trolley and supporting rack by fastening position limiting structure, and track trolley is in fastening limit state at this time.
Description
Technical field
The utility model is related to a kind of travel wheel mechanisms, and in particular to a kind of traveling turbine with function of auto-lift
Structure belongs to technical field of mechanical design.
Background technology
Certain type equipment needs to carry out a series of environmental tests, and the type equipment is placed on track trolley by crane before experiment
On, track trolley is then transported to different environmental test chamber specific positions along I shape track and is accordingly tested,
To examine the resistance to environmental functional and performance of the equipment.
Since the type weight of equipment is big, while needing persistently to turn the equipment at a high speed for a long time during the test, thus
Inertial impact force is very big；It needs continually to advance to the track trolley for being loaded with testing equipment accordingly during the test simultaneously
Position.Limit, rushing in experiment such as cannot be safely and reliably fastened after advancing in place between in-orbit road trolley and I shape track
It hits power to would be possible to that track trolley is caused to move back and forth in I shape track, to test detecting equipment and testing equipment sheet
Body has the risk of prodigious impact failure；Track trolley is required convenient and reliable in I shape track rapidly to go simultaneously
Into.
Rigidly fastening uses holding screw and iron wire phase axially and laterally between existing track trolley and I shape track
In conjunction with mode, since track trolley contacts thus clamp screw needed for this kind of fastening means between I shape track in small area
Nail and iron wire are more and time-consuming and laborious and be easy to cause force unbalance；The track trolley height is higher simultaneously, works as running device
Larger eccentric moment is given birth in Shi Rongyi artificial deliveries.When testing equipment lighter weight, rotary inertia are smaller, this kind of fastening means can have
Effect ground ensures being smoothed out for experiment；But when testing equipment quality is larger, rotary inertia is larger, while frequency during the test
Numerous vibratory impulse alternating force is especially big when opening braking and long-time high speed running apparatus, thus this kind of connection type has experiment
In the process holding screw be easy to loosen, the risk of steel wire fracture, track trolley and interorbital can be caused there are relative motion relation,
Such case will bring prodigious security risk to testing equipment, test detecting equipment and test personnel.This kind fastening simultaneously
Mode is inconvenient, time-consuming and laborious, security reliability is poor, while having to scratch to I shape track and track trolley itself and damage
Danger.
The traveling wheel construction of existing track trolley is typically chosen aerated rubber tyre and solid tire, rubber simultaneously
The tire scope of application is very wide, and the price of rubber tyre is low.But the shortcomings that rubber tyre is that size is big, make the height of trolley compared with
Height to keep equipment position of centre of gravity high, and rubber tyre itself be easy the impact changed by the burn into experimental enviroment of fluid and
The effect of the vibratory impulse alternating force generated when high speed running apparatus, in environmental test overall process will appear tire loses suddenly
Effect.In addition rubber tyre is susceptible to derailing when advancing in I shape track.Such case will equally give testing equipment, examination
It tests detection device and personnel brings prodigious security risk.
Utility model content
In view of this, the utility model provides a kind of traveling turbine with function of auto-lift for track trolley
Structure can be realized and limit is safely and reliably advanced, lifted and fastened between track trolley and I shape track.
The travel wheel mechanism with function of auto-lift for track trolley is mounted on track trolley, packet
It includes：Travel configuration, hydraulic lifting structure and fastening position limiting structure；
The travel configuration includes the travel wheel coordinated with I shape track；
The hydraulic lifting structure includes for driving the travel wheel to rise or fall, making itself and the I shape track
The hydraulic cylinder for being detached from or contacting；
When the travel wheel and the I shape track contact, the track trolley is supported on the work by travel wheel
On font track, track trolley is in travel condition at this time；When the travel wheel and the I shape track are detached from, the rail
Road trolley is supported on the supporting rack of the I shape track both sides, and by the fastening position limiting structure to track trolley and branch
Support carries out fastening limit, and track trolley is in fastening limit state at this time.
The travel configuration further includes：Wheel shaft and travel wheel mounting bracket；The travel wheel is by bearing support described
On wheel shaft, axial limiting is carried out to it at the both ends of the bearing；The travel wheel uses track wheel construction；
Travel wheel mounting bracket bottom is inverted U-shaped structure, and the two sides of bottom open end are set in described
On the wheel shaft of travel wheel both sides；The top of the piston rod of hydraulic cylinder and the travel wheel mounting bracket in the hydraulic lifting structure
Portion is affixed.
Hydraulic cylinder in the hydraulic lifting structure is two-way cylinder；A mouthfuls of two hydraulic fluid ports on two-way cylinder and B
Mouthful connect respectively with hydraulic power unit by oil pipe, the hydraulic power unit by the A mouths or B mouthfuls of logical pressure oils to two-way cylinder,
The bidirectional circulating movement for realizing double acting hydraulic cylinder single-piston, to drive the travel wheel to lift；
The cylinder body of the two-way cylinder is fixed on a mounting board, and the mounting plate passes through bolt cushion block and track trolley
Trolley girder connects, and is fastened by bolt structure and holding pin, to which the travel wheel mechanism to be rigidly linked as with trolley girder
One.
The hydraulic lifting structure further includes the guide rod and guiding for playing the guiding role to the lifting of the travel wheel
Set；Distinguish coaxially connected guide sleeve in the both ends of the wheel shaft；The guide rod sequentially pass through after screw thread cushion block, trolley girder with lead
It is slidably matched to the endoporus of set 7, the guide sleeve can be along the axial movement of guide rod.
The fastening position limiting structure includes two sets or more double nut structures, when the track trolley is supported on supporting rack
When, on its contact surface fastening limit connection between the two is realized by two sets or more double nut structures.
Advantageous effect：
(1) the travel wheel mechanism is with easy to operate, compact-sized, processing technology is simple, load-bearing is big, traveling is flexible, no
Derailing does not damage track, lifts the features such as steady, while the mechanism has the function of traveling, hydraulic lifting function and fastening limit
Function, can realize can safely and reliably advance, lifts and fasten limit between track trolley and I shape track.
(2) the travel wheel mechanism by hydraulic power unit to A mouthfuls of two-way cylinder or B confession pressure oils make single-piston stretch out or
It shrinks, to drive travel wheel to be in contact or be detached from I shape track, while trolley girder being made to be separated or connect with supporting rack
It touches, and double nut structure is coordinated to can be realized between track trolley and I shape track the two in travel condition or fastening limit
State.
(3) track trolley is advanced drives travel wheel so that track by the single-piston of double acting thin cylinder afterwards in place
Trolley and supporting rack reliable contacts, travel wheel are reliably detached from I shape track, can be reduced track platform using such mode
The height of vehicle makes track trolley and supporting rack to reduce equipment position of centre of gravity to increase the stability of testing equipment
Between come into contact in a large area, in conjunction with using double nut structure can be realized the track trolley advance in place after and supporting rack facilitate peace
Complete reliable fastening limit.
(4) travel wheel of the travel wheel mechanism uses the track wheel construction that high-strength alloy Steel material is made；It is in-orbit
The distribution form that even number set (>=4 sets) the travel wheel mechanism is symmetrically used on road trolley, when track trolley is in two I-shaped rails
When being in travel condition on road, since travel wheel makes its a front surface and a side surface connect simultaneously with I shape track using track wheel construction
It touches, in combination with the orientation of guide rod；Thus the travel wheel mechanism is big with load-bearing, it is convenient to advance, while being traveling in work
It is not easy to derail on font track.
(5) the travel wheel mechanism takes positioning pin and bolt structure to be connected as one with the assembly of track trolley, this kind connection
Mode can facilitate that the mechanism is dismantled and assembled on in-orbit road trolley to be used to carry out daily maintenance and experiment to it.
Description of the drawings
Fig. 1 is the front view of the travel wheel mechanism with function of auto-lift in travel condition of the utility model；
Fig. 2 is the right view of the travel wheel mechanism with function of auto-lift of the utility model；
Fig. 3 is the vertical view of the travel wheel mechanism with function of auto-lift of the utility model；
Fig. 4 is the partial sectional view of snap ring junction in travel configuration；
Fig. 5 is that the travel wheel fastening with function of auto-lift of the utility model limits the front view of state.
Wherein：1- I shape tracks, 2- supporting racks, 3- travel wheels, 4- stop washers, 5- round nuts, 6- snap rings, 7- are oriented to
Set, 8- wheel shafts, 9- circlips, 10- angular contact ball bearings, 11- trolleys girder, 12- travel wheels mounting bracket, 13- screw thread pads
Block, 14- mounting plates, 15- guide rods, 16- two-way cylinders, 17- hydraulic power units, 18- holding pins, 19- double nut structures.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.
The present embodiment provides a kind of travel wheel mechanism with function of auto-lift for track trolley, which has
It is easy to operate, compact-sized, processing technology is simple, load-bearing is big, do not derail, advance flexibly, do not damage the spies such as track, lifting be steady
Point, can realize can safely and reliably advance, lifts and fasten limit between track trolley and I shape track.
As depicted in figs. 1 and 2, should include with the travel wheel mechanism of function of auto-lift：Travel configuration, hydraulic lifting knot
Structure and fastening position limiting structure；Matched is I shape track 1.
Wherein travel configuration includes：Travel wheel 3, wheel shaft 8 and travel wheel mounting bracket 12.8 selection of wheel shaft is that 40Cr is quenched
Material, the quenched material have good comprehensive mechanical property, cold temperature impact and higher fatigue strength.Travel wheel 3 passes through
GB/T292-1994 angular contact ball bearings 10 are supported on wheel shaft 8, and one end of angular contact ball bearing 10 passes through GB/T854 round nuts
Stop washer 4 and GB/T812 round nuts 5 carry out axial limiting, and the other end carries out axial limiting by the shaft shoulder on wheel shaft 8, from
And ensures wheel shaft 8 and travel wheel 3 and there was only relative rolling therebetween.Travel wheel 3 uses track wheel construction, when I-shaped at two
It is symmetrically on track 1 pair in use, can ensure that track trolley does not derail when advancing in two I shape tracks 1 and do not damage rail
Road.And travel wheel 3 is the track wheel construction being made using the quenched materials of high strength alloy steel 42CrMo, the alloy steel construction
There are higher fatigue strength and anti-repeat impact ability, Low temperature impact toughness good after steel is quenched；Thus the row mechanism, which has, rises
Drop is steady, and load-bearing is big, compact-sized feature.
12 bottom of travel wheel mounting bracket is inverted U-shaped structure, and the two sides of open end are semicircular structure (this kind of structure
Form is for the installation of wheel shaft 8), it is set on the wheel shaft 8 of 3 both sides of travel wheel, travel wheel 3 is made to be located at travel wheel installation
Inside the inverted U-shaped structure of holder 12.The opposite end suit of 12 semicircular structure of travel wheel mounting bracket passes through 40Cr tune on wheel shaft 8
The semicircle snap ring 6 that material is made, and fastened by screw, it realizes and the radial direction of wheel shaft 8 is limited, and on wheel shaft 8
The outside of travel wheel mounting bracket 12 carries out axial direction using GB/T894.1A types circlip for shaft 9 to travel wheel mounting bracket 12
Limit, as shown in Figure 4.
Hydraulic lifting structure includes：Double acting thin cylinder 16, hydraulic power unit 17, wear-resistant guiding set 7 and guide rod 15.It is double
The piston rod of effect thin cylinder 16 is connect by helicitic texture with the top of travel wheel mounting bracket 12, the slim oil of the double acting
Cylinder 16 has the characteristics that small, length is small and stroke is small.The cylinder body of double acting thin cylinder 16 passes through bolt structure and installation
Plate 14 is connected, and to be fixed on mounting plate 14, mounting plate 14 is connect by bolt cushion block 13 with trolley girder 11, and is passed through
Bolt structure and GB/T119.1 holding pins 18 fasten, to which the travel wheel mechanism and 11 rigidity of trolley girder to be linked together.Tightly
Gu pin 18 plays positioning pin in this configuration, ensure that guide rod 15 endoporus movement in ensure that its be oriented to, it is anti-
The effect of pine, while facilitating the dismounting and assembly between the mechanism and trolley girder 11.Trolley girder 11 uses the common channel steel of hot rolling
63 × 40 × 4.8-GB/T706-2008 does main material and is welded.The travel wheel mechanism is assembled with track trolley (trolley girder 11)
Positioning pin and bolt structure is taken to be connected as one, this kind of connecting mode, which can facilitate, to be dismantled the mechanism and fill on in-orbit road trolley
With so as to it is carried out daily maintenance and experiment use.According to actual condition, it can take more sets that there is function of auto-lift
Travel wheel mechanism be applied to track trolley.
Coaxially connected wear-resistant guiding set 7 is distinguished at the both ends of wheel shaft 8, and wheel shaft 8 and being realized by elastic conjunction connects, wherein taking turns
8 liang of end mill plane of symmetry structures of axis, this kind of structure facilitate the installation between wear-resistant guiding set 7 and wheel shaft 8.With double acting thin cylinder 16
Piston rod sequentially pass through screw thread cushion block 13, trolley girder 11 to parallel guide rod 15 after with wear-resistant guiding set 7 endoporus
It is slidably matched, wear-resistant guiding set 7 can be along the axial movement of guide rod 15.(iron content aluminium is green using QAL9-4 for wear-resistant guiding set 7
Copper) material is made, and has high intensity, antifriction quality and good corrosion resistance, it is particularly suitable for using under the experimental enviroment.It should
Contact and disengaging process of the guide rod 15 between travel wheel 3 and I shape track 1 play the guiding role, to ensure travel wheel 3
Contact and disengaging can be safely and reliably realized between I shape track 1；Row is can guarantee in combination with the track wheel construction of travel wheel 3
It advances normal in I shape track 1 into wheel 3 and does not derail；Simultaneously the structure effectively acted as double acting thin cylinder 16 with
The anti-loosing effect of 12 thread connections of travel wheel mounting bracket.
It is respectively A mouthfuls and B mouthfuls, the A mouths of double acting thin cylinder 16 to enable the hydraulic fluid port of 16 two cavitys of double acting thin cylinder
It is connected respectively with hydraulic power unit 17 by oil pipe with B mouthfuls, hydraulic power unit 17 can be to the A mouths or B of double acting thin cylinder 16
The logical pressure oil of mouth, to realize the bidirectional circulating movement of slim 16 single-piston of hydraulic cylinder of double acting, to drive travel wheel 3 to lift.
Four sets of travel wheel mechanisms with function of auto-lift are used (to share One hydraulic pump station altogether in the track trolley of this example
17), as shown in figure 3, wherein the stroke of the single-piston of double acting thin cylinder 16 is 0~300mm, hydraulic power unit charge oil pressure is
10~14MPa.
Fastening position limiting structure includes：Supporting rack 2 and four sets of double nut structures 19, the both sides of I shape track 1 are provided with
Supporting rack 2, when travel wheel 3 is contacted with I shape track 1, trolley girder 11 is not contacted with supporting rack 2, at this time travel wheel mechanism
Gravity support be supported in I shape track 1 by travel wheel 3；When travel wheel 3 and I shape track 1 are gradually separated,
Travel wheel mechanism loses support, declines under the effect of gravity, so that trolley girder 11 is gradually in contact with supporting rack 2, works as double acting
After the single-piston of thin cylinder 16 is shunk in place, large area is in close contact between trolley girder 11 and supporting rack 2.When trolley girder
After large area is in close contact between 11 and supporting rack 2, by between four sets of realization the two of double nut structures 19 on its contact surface
Fastening limit connection, four sets of double nut structures 19 are located at the edge easy disassembly of trolley.As shown in Fig. 2, to pushing up spiral shell
After two nuts in parent structure 19 tighten top, makes to screw and acted on always by additonal pressure and frictional force between screw thread, when
When service load changes, which still has, this is simple in structure, especially suitable for the track trolley steady, low speed and
Connection in the fixing device of heavy duty.And when both travel wheel 3 and I shape track 1 come into contact with, while trolley girder 11
It is gradually disengaged with supporting rack 2, experiment trolley can facilitate traveling in I shape track 1 after single-piston extends in place.
There are two types of working condition, respectively travel conditions and fastening to limit for the travel wheel mechanism with function of auto-lift
State：
Travel condition：
By hydraulic power unit 17 to the A confession pressure oils of double acting thin cylinder 16, oil return is used for for B mouthfuls at this time, in pressure
Oil effect lower piston gradually stretches out, and to drive travel wheel 3 to move down by travel wheel mounting bracket 12, makes 3 He of travel wheel
I shape track 1 comes into contact with (in moving process, guide rod 15 play the guiding role)；Make trolley girder 11 and supporting rack 2 simultaneously
It is gradually disengaged；After slim 16 single-piston of hydraulic cylinder of double acting is stretched out in place, you can realize that travel wheel 3 is pacified with I shape track 1
It is reliably in contact entirely, while trolley girder 11 is kept completely separate with supporting rack 2, to so that track trolley is in I shape track 1
Upper safe and reliable traveling, as shown in Figure 1.
Fasten limit state：
By hydraulic power unit 17 to the B confession pressure oils of double acting thin cylinder 16, oil return is used for for A mouthfuls at this time, in pressure
Oil effect lower piston gradually tapers up that travel wheel 3 is made to move up, and travel wheel 3 and I shape track 1 progressively disengage, trolley master
Beam 11 sinks under the effect of gravity, is gradually contacted with supporting rack 2.After 16 single-piston of slim hydraulic cylinder is shunk in place, you can real
The large area of existing trolley girder 11 and supporting rack 2 is in close contact, while travel wheel 3 is safely and reliably detached from I shape track 1,
Finally by double nut structure 19 to track trolley and the fastening limit of supporting rack 2, so that follow-up test works, as shown in Figure 5.
Using the travel wheel mechanism of this kind of structure type, in-orbit platform where rites are performed garage passes through hydraulic power unit and double cropping into after in place
Experiment can be increased to reduce the position of centre of gravity of testing equipment by driving travel wheel to reduce trolley girder height with slim hydraulic cylinder
The stability of equipment；It can be made by the double nut structure of the mechanism when need to fasten simultaneously quickly square between trolley and supporting rack
Just it safely and reliably fastens, to realize that the fastening between trolley and supporting rack limits；When track trolley need to be in I shape track
It can be by unclamping the rigid connection of double nut the structure Rapid reversal trolley and supporting rack of the mechanism when traveling, and pass through liquid
Press pump station and the slim hydraulic cylinder of double acting, which drive, to be contacted between travel wheel and I shape track so that track trolley is advanced.The machine simultaneously
Structure is big with load-bearing, it is convenient to advance, and does not derail when being traveling in I shape track so as to track trolley, is tried so as to effective guarantee
That tests is normally smoothed out.
To sum up, the above is only the preferred embodiments of the present utility model only, is not intended to limit the protection of the utility model
Range.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in
Within the scope of protection of the utility model.
Claims (8)
1. a kind of travel wheel mechanism with function of auto-lift for track trolley, it is characterised in that：The traveling turbine
Structure is mounted on track trolley, including：Travel configuration, hydraulic lifting structure and fastening position limiting structure；
The travel configuration includes the travel wheel (3) coordinated with I shape track (1)；
The hydraulic lifting structure includes for driving the travel wheel (3) to rise or fall, making itself and the I shape track
(1) hydraulic cylinder for being detached from or contacting；
When the travel wheel (3) and the I shape track (1) contact, the track trolley is supported on by travel wheel (3)
On the I shape track (1), track trolley is in travel condition at this time；When the travel wheel (3) and the I shape track
(1) when being detached from, the track trolley is supported on the supporting rack (2) of the I shape track (1) both sides, and passes through the fastening
Position limiting structure carries out fastening limit to track trolley and supporting rack (2), and track trolley is in fastening limit state at this time.
2. being used for the travel wheel mechanism with function of auto-lift of track trolley as described in claim 1, it is characterised in that：
The travel configuration further includes：Wheel shaft (8) and travel wheel mounting bracket (12)；The travel wheel (3) is by bearing support in institute
It states on wheel shaft (8), axial limiting is carried out to it at the both ends of the bearing；The travel wheel (3) uses track wheel construction；
Travel wheel mounting bracket (12) bottom is inverted U-shaped structure, and the two sides of bottom open end are set in described
On the wheel shaft (8) of travel wheel (3) both sides；The piston rod of hydraulic cylinder and travel wheel installation branch in the hydraulic lifting structure
The top of frame (12) is affixed.
3. being used for the travel wheel mechanism with function of auto-lift of track trolley as claimed in claim 2, it is characterised in that：
Hydraulic cylinder in the hydraulic lifting structure is two-way cylinder (16)；A mouthfuls of two hydraulic fluid ports on two-way cylinder (16) and B
Mouth is connect by oil pipe with hydraulic power unit (17) respectively, and the hydraulic power unit (17) passes through the A mouths or B to two-way cylinder (16)
The logical pressure oil of mouth realizes the bidirectional circulating movement of two-way cylinder (16) single-piston, to drive the travel wheel (3) to lift；
The cylinder body of the two-way cylinder (16) is fixed on mounting plate (14), and the mounting plate (14) passes through screw thread cushion block (13)
It connect with the trolley girder (11) of track trolley, and is fastened by bolt structure and holding pin (18), thus by the traveling turbine
Structure is rigidly linked together with trolley girder (11).
4. being used for the travel wheel mechanism with function of auto-lift of track trolley as claimed in claim 3, it is characterised in that：
The hydraulic lifting structure further includes the guide rod (15) and guide sleeve for playing the guiding role to the lifting of the travel wheel (3)
(7)；Distinguish coaxially connected guide sleeve (7) in the both ends of the wheel shaft (8)；The guide rod (15) sequentially passes through screw thread cushion block
(13), endoporus of the trolley girder (11) afterwards with guide sleeve 7 is slidably matched, and the guide sleeve (7) can be along guide rod (15)
Axial movement.
5. the travel wheel mechanism with function of auto-lift for track trolley as described in claim 1,2,3 or 4, special
Sign is：The fastening position limiting structure includes two sets or more double nut structures (19), when the track trolley is supported on support
When on frame (2), pass through fastening limit connection between two sets or more double nut structures (19) realization the two on its contact surface.
6. being used for the travel wheel mechanism with function of auto-lift of track trolley as claimed in claim 2, it is characterised in that：
The two sides of travel wheel mounting bracket (12) the bottom inverted U-shaped structure open end are semicircular structure, are set in described
On the wheel shaft (8) of travel wheel (3) both sides, the travel wheel (3) is made to be located inside inverted U-shaped structure；Travel wheel on the wheel shaft (8)
The semicircle snap ring (6) of opposite end suit of mounting bracket (12) semicircular structure carries out radial limit to the wheel shaft (8), described
The outside of travel wheel mounting bracket (12) carries out the travel wheel mounting bracket (12) using circlip (9) on wheel shaft (8)
Axial limiting.
7. the travel wheel mechanism with function of auto-lift for track trolley as described in claim 1,2,3 or 4, special
Sign is：The travel wheel (3) is the track wheel construction being made using the quenched materials of high strength alloy steel 42CrMo.
8. the travel wheel mechanism with function of auto-lift for track trolley as described in claim 1,2,3 or 4, special
Sign is：4 even number is more than or equal to using the form of N set symmetric configurations, N on the in-orbit road trolley of travel wheel mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721794768.6U CN207902441U (en) | 2017-12-20 | 2017-12-20 | A kind of travel wheel mechanism with function of auto-lift for track trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721794768.6U CN207902441U (en) | 2017-12-20 | 2017-12-20 | A kind of travel wheel mechanism with function of auto-lift for track trolley |
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| Publication Number | Publication Date |
|---|---|
| CN207902441U true CN207902441U (en) | 2018-09-25 |
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ID=63567931
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721794768.6U Expired - Fee Related CN207902441U (en) | 2017-12-20 | 2017-12-20 | A kind of travel wheel mechanism with function of auto-lift for track trolley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099934A (en) * | 2017-12-20 | 2018-06-01 | 中国船舶重工集团公司第七0研究所 | A kind of travel wheel mechanism with function of auto-lift for track trolley |
-
2017
- 2017-12-20 CN CN201721794768.6U patent/CN207902441U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099934A (en) * | 2017-12-20 | 2018-06-01 | 中国船舶重工集团公司第七0研究所 | A kind of travel wheel mechanism with function of auto-lift for track trolley |
| CN108099934B (en) * | 2017-12-20 | 2023-12-19 | 中国船舶重工集团公司第七一0研究所 | Travelling wheel mechanism with automatic lifting function for track trolley |
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