CN207918272U - A kind of locomotive crane - Google Patents
A kind of locomotive crane Download PDFInfo
- Publication number
- CN207918272U CN207918272U CN201721276608.2U CN201721276608U CN207918272U CN 207918272 U CN207918272 U CN 207918272U CN 201721276608 U CN201721276608 U CN 201721276608U CN 207918272 U CN207918272 U CN 207918272U
- Authority
- CN
- China
- Prior art keywords
- chassis
- leg
- auxiliary leg
- locomotive crane
- oil 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.)
- Active
Links
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model discloses a kind of locomotive crane, including chassis and several main supporting legs for being connected to the chassis, the chassis is also associated with even number auxiliary leg, and each auxiliary leg is centrosymmetric distribution relative to the center of the chassis.When the locomotive crane is in bridge job state, the auxiliary leg can stretch out and be supported in ground, the dead weight of the locomotive crane and goods weight are by main supporting leg and auxiliary leg shared, so as to reduce the load that single main supporting leg is born, and the load that single auxiliary leg is born is relatively low more than the risk of bridge ability to bear, and then the stability of strutting system of the locomotive crane and the service life of main supporting leg and auxiliary leg are improved, and reduce the security risk of locomotive crane bridge operation.
Description
Technical field
The utility model is related to technical field of engineering machinery, more particularly to a kind of locomotive crane.
Background technology
With the high speed development of China Railway cause, rail transportation circuit scale constantly expands, passenger traffic, goods stock
The speed of service, dense degree it is increasing, to railway accident emergency management and rescue work more stringent requirements are proposed.Locomotive crane
It as a kind of railway breakdown lifting equipment, is mainly run in railway line, undertakes the hoisting operation under various environment along the line.
Locomotive crane generally includes car body, chassis, the traveling equipment and support equipment for being connected to chassis.Existing railway
Crane Undercarriage structure is as depicted in figs. 1 and 2, wherein Fig. 1 is that railway crane chassis frame coordinates with supporting mechanism in the prior art
Structural schematic diagram；Fig. 2 is the vertical view of Fig. 1.As shown in Figure 1, existing locomotive crane uses four supporting legs, 2 ＇ structures, i.e. bottom
By 21 ＇ connections of axis pin, there are one 2 ＇ of supporting leg, 2 ＇ of each supporting leg also to be connected by opening up 22 ＇ of leg oil cylinder and 1 ＇ of chassis respectively for the quadrangle of 1 ＇ of frame
It connects, when the telescopic rod of 22 ＇ of the exhibition leg oil cylinder is flexible, 2 ＇ of supporting leg can be driven to be rotated around 21 ＇ of axis pin, to change the branch of 2 ＇ of supporting leg
Support point.Meanwhile each 2 ends ＇ of supporting leg are also associated with 23 ＇ of supporting oil cylinder, which vertically stretches, to
The height of 1 ＇ of chassis can be changed.
When locomotive crane operation on bridge, by open up 22 ＇ of leg oil cylinder make it is above-mentioned four supporting leg 2 ＇ are stretched out, and
It is supported on the roadbed of rail track, vehicle dead weight and goods weight are undertaken by four 2 ＇ of supporting leg, and there are 2 ＇ of single supporting leg most
Big load is more than the risk of load carrying capacity of bridge, and therefore, which has larger bridge job safety hidden danger.
In view of this, how to provide a kind of support construction of locomotive crane so that the load of each supporting leg reduces, to carry
The safety of high locomotive crane operation on bridge is those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of locomotive crane, including chassis and company
Several main supporting legs of the chassis are connected to, the chassis is also associated with even number auxiliary leg, and each auxiliary leg is opposite
It is centrosymmetric distribution in the center of the chassis.
When the locomotive crane is in the job state on bridge, which can stretch out and be supported in ground,
The dead weight of the locomotive crane and goods weight are by main supporting leg and auxiliary leg shared, so as to reduce single main supporting leg
The load born, and the load that single auxiliary leg is born is relatively low more than the risk of its ability to bear, and then improving should
The service life of the stability of strutting system of locomotive crane and main supporting leg and auxiliary leg, and reduce the bridge operation of locomotive crane
Security risk.
Meanwhile when the auxiliary leg for being connected to chassis transverse ends is centrosymmetric, each auxiliary leg institute is enabled to
The load born is roughly equal, to improve stability of strutting system, and avoids leading to some auxiliary branch since load is uneven
The load that leg is born is more than its bearing capacity.
Optionally, the chassis is connected with auxiliary leg described in even number, and each auxiliary leg is relative to the bottom
The center of frame is centrosymmetric distribution.
Optionally, it is connected by the first extensible member between the auxiliary leg and the chassis, first pars contractilis
Part can drive the auxiliary leg transversely to stretch out or retract relative to the chassis.
Optionally, the locomotive crane include the first telescopic oil cylinder, the first telescopic rod of first telescopic oil cylinder with
In first cylinder body, one is fixed with the auxiliary leg, and another one is fixed with the chassis, and first telescopic rod is described in
The axial stretching of auxiliary leg, first telescopic oil cylinder are first extensible member.
Optionally, the auxiliary leg and the chassis are hinged, and are also connected by rotation driving part therebetween, institute
Stating rotation driving part can drive the auxiliary leg in the rotation in surface where the chassis.
Optionally, the locomotive crane include the second telescopic oil cylinder, the second telescopic rod of second telescopic oil cylinder with
In second cylinder body, one is fixed with the auxiliary leg, and another one is fixed with the chassis, the flexible side of second telescopic rod
There is predetermined angular to the axial direction of the auxiliary leg, when so that second telescopic rod is flexible, drive the auxiliary leg
Rotation, second telescopic oil cylinder are the rotation driving part.
Optionally, the one end of the auxiliary leg far from the chassis is provided with supporting oil cylinder, and the supporting oil cylinder is stretched
Contracting bar vertically stretches.
Optionally, the main supporting leg includes fixed section and active segment, and the chassis is fixed in described fixed section one end, another
It is connected by the second extensible member between end and the active segment, second extensible member can drive the active segment opposite
It stretches out or retracts in the fixed section.
Optionally, the fixed section and the active segment be the box girder construction being mutually socketed, and the main supporting leg includes the
Three telescopic oil cylinders, third telescopic rod is with third cylinder body, and one is fixed on the active segment, and another one is fixed on the fixation
Section, and the third telescopic rod, along the axial stretching of the main supporting leg, the third telescopic oil cylinder is second extensible member.
Optionally, along longitudinal direction, the vertical dimension in the chassis stage casing is more than left section of its both ends and right section of vertical dimension.
Description of the drawings
Fig. 1 is the structural schematic diagram of railway crane chassis frame and supporting mechanism cooperation in the prior art；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 provides railway crane chassis frame and the first specific embodiment of supporting mechanism cooperation by the utility model
Front view；
Fig. 4 is the vertical view of Fig. 3；
Fig. 5 provides railway crane chassis frame and second of specific embodiment of supporting mechanism cooperation by the utility model
Front view；
Fig. 6 is the vertical view of Fig. 5；
Fig. 7 provides structural schematic diagram of the auxiliary leg in the first specific embodiment by the utility model；
Fig. 8 is the vertical view of Fig. 7；
Fig. 9 provides railway crane chassis frame and the third specific embodiment of supporting mechanism cooperation by the utility model
Front view；
Figure 10 is the vertical view of Fig. 9；
Figure 11 provides structural schematic diagram of the auxiliary leg in second of specific embodiment by the utility model；
Figure 12 is the vertical view of Figure 11；
Figure 13 is provided the 4th kind of specific embodiment of railway crane chassis frame and supporting mechanism cooperation by the utility model
Front view；
Figure 14 is the vertical view of Figure 13；
Figure 15 provides the structural schematic diagram of main supporting leg in a specific embodiment by the utility model；
Figure 16 is the vertical view of Figure 15.
In Fig. 1-2：
1 ＇ chassis, 11 stage casings ＇, left section of 12 ＇, right section of 13 ＇, 2 ＇ supporting legs, 21 ＇ axis pins, 22 ＇ exhibition legs oil cylinder, 23 ＇ bearing oil
Cylinder.
In Fig. 3-16：
1 main supporting leg, 11 fixed sections, 12 active segments, 13 third telescopic oil cylinders, 131 third telescopic rods, 132 third cylinder bodies, 14
Third supporting oil cylinder, 15 exhibition leg oil cylinders；
2 auxiliary legs, 21 first telescopic oil cylinders, 211 first telescopic rods, 212 first cylinder bodies, 22 second telescopic oil cylinders,
221 second telescopic rods, 222 second cylinder bodies, 23 first supporting oil cylinders, 24 second supporting oil cylinders；
3 chassis, 31 stage casings, 32 left sections, 33 right sections.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in further detail for body embodiment.
Please refer to attached drawing 3-12, wherein Fig. 3 provides railway crane chassis frame by the utility model and coordinates with supporting mechanism
The first specific embodiment front view；Fig. 4 is the vertical view of Fig. 3；Fig. 5 provides locomotive crane bottom by the utility model
The front view of frame and second of specific embodiment of supporting mechanism cooperation；Fig. 6 is the vertical view of Fig. 5；Fig. 7 is the utility model institute
Structural schematic diagram of the auxiliary leg in the first specific embodiment is provided；Fig. 8 is the vertical view of Fig. 7；Fig. 9 is that this practicality is new
The front view of the provided railway crane chassis frame of type and the third specific embodiment of supporting mechanism cooperation；Figure 10 is bowing for Fig. 9
View；Figure 11 provides structural schematic diagram of the auxiliary leg in second of specific embodiment by the utility model；Figure 12 is figure
11 vertical view.
It should be noted that the nouns of locality such as " longitudinal direction " referred to herein, " transverse direction ", " vertical " are with locomotive crane
What travel direction defined, wherein " longitudinal direction " is the direction where locomotive crane travel direction, left and right directions as shown in Figure 4；
" transverse direction " is referred to perpendicular to the direction of locomotive crane travel direction, upper and lower directions as shown in Figure 4；" vertical " refers to hanging down
Directly in the direction of railway crane chassis frame plane, upper and lower directions as shown in Figure 3.It is appreciated that when definition mode difference, on
It is also different to state the noun of locality, therefore, the appearance of above-mentioned each noun of locality is not construed as the absolute limit to scope of protection of the utility model.
In a specific embodiment, the utility model provides a kind of locomotive crane, including chassis 3 and is connected to the bottom
Several main supporting legs 1 of frame 3, wherein as stated in the background art, main supporting leg 1 is connected to chassis 3 by axis pin, as shown in figure 4, should
Main supporting leg 1 also by open up leg oil cylinder 15 connect with chassis 3, therefore, when exhibition leg oil cylinder 15 stretch when, can push main supporting leg 1 around
Axis pin rotates, to change the fulcrum of main supporting leg 1, meanwhile, which is provided with third bearing oil
The telescopic rod of cylinder 14, the third supporting oil cylinder 14 can vertically stretch, so as to adjust the height of chassis 3.
Meanwhile the chassis 3 is also connected with several auxiliary legs 2.When the locomotive crane is in bridge job state, this is auxiliary
It helps supporting leg 2 that can stretch out and is supported in ground, the dead weight of the locomotive crane and goods weight are by main supporting leg 1 and auxiliary leg 2
Shared, so as to reduce the load that single main supporting leg 1 is born, and the load that single auxiliary leg 2 is born is more than
The risk of bridge ability to bear is relatively low, and then improves the stability of strutting system and main supporting leg 1 and auxiliary leg 2 of the locomotive crane
Service life, and reduce the security risk of locomotive crane bridge operation.
Specifically, as shown in Fig. 4, Fig. 6 and Figure 10, chassis 3 is connected with even number auxiliary leg 2, and 2 phase of each auxiliary leg
It is centrosymmetric distribution for the center of chassis 3.Wherein, also be provided with can be vertically for end of each auxiliary leg 2 far from chassis 3
The supporting oil cylinder of extension, such as the second supporting oil cylinder 24 in the first supporting oil cylinder 23 in Fig. 7, or such as Figure 11.It needs to illustrate
, the first supporting oil cylinder 23 and the second supporting oil cylinder 24 are supporting oil cylinder in two kinds of different embodiments of auxiliary leg 2
Different names, the concrete structure of the two is no difference.
So set, when the auxiliary leg 2 for being connected to 3 transverse ends of chassis is centrosymmetric, each auxiliary is enabled to
The load that supporting leg 2 is born is roughly equal, to improve stability of strutting system, and avoids leading to some since load is uneven
The load that auxiliary leg 2 is born is more than its bearing capacity.
It should be noted that in order to improve the uniformity of 2 load of each auxiliary leg, it is opposite to may be configured as each auxiliary leg 2
In the center of gravity central symmetry of chassis 3, still, since the center of gravity of chassis 3 is not easy to determine, and goods weight that can be according to carrying and position
It sets different and changes.Therefore, the center of chassis 3 can be the centre of form of chassis 3 in the present embodiment, i.e., set each auxiliary leg 2 to
The centre of form relative to chassis 3 is centrosymmetric distribution.
Further, it is connected by the first extensible member between auxiliary leg 2 and chassis 3, which can
Driving auxiliary leg 2 is transversely stretched out or is retracted relative to chassis 3.When locomotive crane is in lifting state, this first is stretched
Contracting component driving auxiliary leg 2 is transversely stretched out so that auxiliary leg 2 has different spans, and can be according to actual needs
Change the supporting point of the first supporting oil cylinder 23 or the second supporting oil cylinder 24.
Specifically, as seen in figures 3-6, which includes the first telescopic oil cylinder 21, and incorporated by reference to Fig. 7 and Fig. 8, this
In the first telescopic rod 211 and the first cylinder body 212 of one telescopic oil cylinder 21, one is fixed with auxiliary leg 2, another one and chassis 3
It is fixed, and in order to enable auxiliary leg 2 when locomotive crane is in walking states can axial retraction, first cylinder body 212
Be fixed on chassis 3 lean on paracentral precalculated position, meanwhile, the first telescopic rod 211 along auxiliary leg 2 axial stretching, such as Fig. 7 institutes
Show, when the first telescopic rod 211 is in retracted mode, which is retracted in 3 range of chassis, to avoid auxiliary branch
Leg 2 influences the proper motion of the locomotive crane.Therefore, which is above-mentioned first extensible member.
Certainly, above-mentioned first extensible member is not necessarily realized by the first telescopic oil cylinder 21, and it is normal that this field can also be used
Other stretching structures, for example, motor drives screw slider, gear mechanism etc..But the first flexible oil in the present embodiment
Cylinder 21 can utilize the original hydraulic system of locomotive crane, facilitate realization, be not required in addition provide other power.
In another embodiment, auxiliary leg 2 and chassis 3 are hinged, and are connected by rotation driving part therebetween,
In, which can drive auxiliary leg 2 in the rotation in surface where chassis 3.When rotation driving part drives
It when auxiliary leg 2 is rotated along the direction far from chassis 3, is equivalent to auxiliary leg 2 and is in stretching state, when rotation driving part drives
Dynamic auxiliary supporting leg 2 is equivalent to auxiliary leg 2 and is in retracted mode along when being rotated close to the direction of chassis 3.
Specifically, as shown in figs. 9-11, which includes the second telescopic oil cylinder 22, and second telescopic oil cylinder 22
The second telescopic rod 221 and the second cylinder body 222 in, one and auxiliary leg 2 are fixed, and another one is fixed with chassis 3, and second stretches
The telescopic direction of contracting bar 221 has predetermined angular with the axial direction of auxiliary leg 2, therefore, when the second telescopic rod 221 stretches, drives
Dynamic second telescopic rod 221 is rotated around the hinge joint of the second cylinder body 222 and chassis 3, i.e., second telescopic oil cylinder 22 is above-mentioned rotation
Driving part.
Specifically, when the second telescopic rod 221 is in retracted mode, the angle between the auxiliary leg 2 and chassis 3 is most
Small, i.e., auxiliary leg 2 is in retracted state, and when the second telescopic rod 221 gradually stretches out, driving auxiliary leg 2 is directed away from bottom
The direction of frame 3 is rotated around the hinge joint of itself and chassis 3, when the second telescopic rod 221, which is in, stretches out the limit, auxiliary leg 2 and bottom
Angle between frame 3 is maximum, at this point, the span of auxiliary leg 2 is maximum.In addition, being limited to the second telescopic oil cylinder 22 and chassis 3
Mounting structure, between auxiliary leg 2 and chassis 3 maximum angle be less than 90 °.
More specifically, in Fig. 3 and embodiment shown in Fig. 4, which includes being connected to chassis 3 lateral two
Two auxiliary legs 2 at end, two auxiliary legs 2 mutually stagger along longitudinal direction, and the center relative to chassis 3 is centrosymmetric point
Cloth, and since the position load at 3 middle part of chassis is larger, two auxiliary legs 2 are disposed in proximity to chassis 3 close to transverse center
The position of line.
Wherein, two auxiliary legs 2 in Fig. 3 and Fig. 4 are connected with chassis 3 by extensible member, i.e. 2 structure of auxiliary leg
As shown in Figure 7 and Figure 8, certainly, two auxiliary legs 2 in the present embodiment can also pass through rotation driving part phase with chassis 3
Even, i.e., the structure in auxiliary leg 2 or Figure 11 and Figure 12.
In Fig. 5 and embodiment shown in fig. 6, which includes four auxiliary legs 2, is connected to bottom in pairs
The lateral both ends of frame 3, and two groups of auxiliary legs 2 are centrosymmetric distribution relative to the center of chassis 3, meanwhile, two groups of auxiliary branch
Leg 2 is close to the cross central line setting of chassis 3.In the present embodiment, four auxiliary legs 2 can be the structure in Fig. 7 and Fig. 8.
In Fig. 9 and embodiment shown in Fig. 10, which also includes four auxiliary legs 2, is connected in pairs
In the lateral both ends of chassis 3, and two groups of auxiliary legs 2 are centrosymmetric distribution relative to the center of chassis 3.In the present embodiment,
The auxiliary leg 2 that chassis 3 is connected to by rotation driving part is easy arrangement, as shown in Figure 10, auxiliary leg 2 and chassis 3
Hinge joint is leaned on far from 3 cross central line of chassis, and still, supporting point is close to cross central line, therefore, is not required to by close to laterally
The effect at 3 middle part of Auxiliary support chassis, therefore, 2 flexible arrangement of auxiliary leg in the present embodiment can be realized in center line arrangement.
On the other hand, in Fig. 1 and embodiment shown in Fig. 2,1 ＇ spans of supporting leg are smaller, when it is extended, 23 ＇ of supporting oil cylinder
Be supported in floorings, and cannot be supported on the adjacent line of railway, and floorings bearing capacity is weaker, locomotive crane carrying compared with
When big, there is the risk beyond its bearing capacity in 2 ＇ of each supporting leg to the pressure of floorings.Therefore, in order to solve the technical problem,
The utility model has also further made following designs.
Please continue to refer to attached drawing 13-16, wherein Figure 13 provides railway crane chassis frame and support machine by the utility model
The front view of 4th kind of specific embodiment of structure cooperation；Figure 14 is the vertical view of Figure 13；Figure 15 provides master by the utility model
The structural schematic diagram of supporting leg in a specific embodiment；Figure 16 is the vertical view of Figure 15.
In the above various embodiments, which includes fixed section 11 and active segment 12, wherein 11 one end of fixed section is fixed
It in chassis 3, is connected by the second extensible member between the other end and active segment 12, which can drive active segment
12 stretch out or retract relative to fixed section 11, and when active segment 12 is stretched out relative to fixed section 11, which increases,
So that its third supporting oil cylinder 14 can be supported in the larger railway adjacent line of bearing capacity, and then reduce the load of floorings
Lotus.
Specifically, as shown in Figure 15 and Figure 16, the fixed section 11 and active segment 12 are the box girder construction being mutually socketed, and
The main supporting leg 1 further includes third telescopic oil cylinder 13, wherein the third telescopic rod 131 of third telescopic oil cylinder 13 and third cylinder body 132
In, one is fixed on active segment 12, and another one is fixed on third cylinder body 132, and third telescopic rod 131 is along the axial direction of main supporting leg 1
It is flexible.Therefore, which is above-mentioned second extensible member.
In embodiment as shown in Figure 13 and Figure 14, which only includes four main supporting legs 1, and each main supporting leg 1
Structure it is as shown in Figure 15 and Figure 16, certainly, the locomotive crane in the various embodiments described above can be used shown in Figure 15 and Figure 16
1 structure of main supporting leg.
On the other hand, as depicted in figs. 1 and 2, in the prior art, in order to increase the bearing capacity of 1 ＇ of chassis, left section
12 ＇, right section of 13 ＇ being closely sized to vertically with 11 ＇ of stage casing, larger, still, 1 ＇ of chassis of the structure has weight larger
Disadvantage is unfavorable for locomotive crane and realizes lightweight.
Based on this, since the chassis 3 in the various embodiments described above is provided with auxiliary leg 2, to improve the carrying energy of chassis 3
Power, therefore, in the chassis 3 in the various embodiments described above, as shown in Fig. 3, Fig. 5, Fig. 9 and Figure 13,3 left sections 32 and right section 33 of the chassis
The size that size vertically is less than stage casing 31 helps to realize lightweight to reduce the weight of the locomotive crane.
In addition, the utility model also provides a kind of supporting mechanism of locomotive crane, the supporting mechanism and locomotive crane
Chassis 3 connect, including four main supporting legs 1 further include several auxiliary legs 2, wherein are led between each auxiliary leg 2 and chassis 3
The connection of the first extensible member is crossed, which can drive auxiliary leg 2 transversely to stretch out or contract relative to chassis 3
It returns, alternatively, being connected by rotation driving part between the auxiliary leg 2 and chassis 3, which can drive auxiliary
Supporting leg 2 is in the rotation in surface where chassis 3.
The supporting mechanism has above-mentioned technique effect, and details are not described herein again.
A kind of locomotive crane provided by the utility model is described in detail above.It is used herein specifically
A example is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to understand this
The method and its core concept of utility model.It should be pointed out that for those skilled in the art, not departing from
Under the premise of the utility model principle, several improvements and modifications can be made to this utility model, these improvement and modification
It falls into the protection domain of the utility model claims.
Claims (9)
1. a kind of locomotive crane, including chassis (3) and several main supporting legs (1) for being connected to the chassis (3), feature exists
In the chassis (3) is also associated with even number auxiliary leg (2), and each auxiliary leg (2) is relative to the chassis (3)
Center be centrosymmetric distribution.
2. locomotive crane according to claim 1, which is characterized in that the auxiliary leg (2) and the chassis (3) it
Between connected by the first extensible member, first extensible member can drive the auxiliary leg (2) relative to the chassis
(3) it transversely stretches out or retracts.
3. locomotive crane according to claim 2, which is characterized in that the locomotive crane includes the first telescopic oil cylinder
(21), in the first telescopic rod (211) Yu the first cylinder body (212) of first telescopic oil cylinder (21), one and auxiliary branch
Leg (2) is fixed, and another one is fixed with the chassis (3), and first telescopic rod (211) is along the axis of the auxiliary leg (2)
To stretching, first telescopic oil cylinder (21) is first extensible member.
4. locomotive crane according to claim 1, which is characterized in that the auxiliary leg (2) is cut with scissors with the chassis (3)
It connects, and is also connected by rotation driving part therebetween, the rotation driving part can drive the auxiliary leg (2) to exist
Rotation in surface where the chassis (3).
5. locomotive crane according to claim 4, which is characterized in that the locomotive crane includes the second telescopic oil cylinder
(22), in the second telescopic rod (221) Yu the second cylinder body (222) of second telescopic oil cylinder (22), one and auxiliary branch
Leg (2) is fixed, and another one is fixed with the chassis (3), telescopic direction and the auxiliary leg of second telescopic rod (221)
(2) axial direction has predetermined angular, when so that second telescopic rod (221) is flexible, the auxiliary leg (2) is driven to rotate,
Second telescopic oil cylinder (22) is the rotation driving part.
6. locomotive crane according to any one of claims 1-5, which is characterized in that the auxiliary leg (2) is separate
One end of the chassis (3) is provided with supporting oil cylinder, and the telescopic rod of the supporting oil cylinder vertically stretches.
7. locomotive crane according to any one of claims 1-5, which is characterized in that the main supporting leg (1) includes solid
Determine section (11) and active segment (12), the chassis (3), the other end and the active segment are fixed in described fixed section (11) one end
(12) it is connected by the second extensible member between, second extensible member can drive the active segment (12) relative to described
Fixed section (11) is stretched out or is retracted.
8. locomotive crane according to claim 7, which is characterized in that the fixed section (11) and the active segment (12)
For the box girder construction being mutually socketed, the main supporting leg (1) includes third telescopic oil cylinder (13), third telescopic rod (131) with
In third cylinder body (132), one is fixed on the active segment (12), and another one is fixed on the fixed section (11), and described
For three telescopic rods (131) along the axial stretching of the main supporting leg (1), the third telescopic oil cylinder (13) is second pars contractilis
Part.
9. locomotive crane according to any one of claims 1-5, which is characterized in that along longitudinal direction, in the chassis (3)
The vertical dimension of section (31) is more than the vertical dimension of left section of (32) and right section (33) at its both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276608.2U CN207918272U (en) | 2017-09-29 | 2017-09-29 | A kind of locomotive crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276608.2U CN207918272U (en) | 2017-09-29 | 2017-09-29 | A kind of locomotive crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207918272U true CN207918272U (en) | 2018-09-28 |
Family
ID=63612716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721276608.2U Active CN207918272U (en) | 2017-09-29 | 2017-09-29 | A kind of locomotive crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207918272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110395667A (en) * | 2019-07-29 | 2019-11-01 | 福建开辉机械工程有限公司 | A kind of tower type crane bottom beam structure |
| CN111847236A (en) * | 2020-09-24 | 2020-10-30 | 湖南三一中型起重机械有限公司 | Supporting leg device, chassis frame structure of crane and crane |
-
2017
- 2017-09-29 CN CN201721276608.2U patent/CN207918272U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110395667A (en) * | 2019-07-29 | 2019-11-01 | 福建开辉机械工程有限公司 | A kind of tower type crane bottom beam structure |
| CN110395667B (en) * | 2019-07-29 | 2020-12-04 | 福建开辉机械工程有限公司 | Bottom beam structure of tower crane |
| CN111847236A (en) * | 2020-09-24 | 2020-10-30 | 湖南三一中型起重机械有限公司 | Supporting leg device, chassis frame structure of crane and crane |
| CN111847236B (en) * | 2020-09-24 | 2021-01-26 | 湖南三一中型起重机械有限公司 | Supporting leg device, chassis frame structure of crane and crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102862580B (en) | Overline operation crane for high-speed railways | |
| CN106044552B (en) | A kind of more supporting leg rubber-tyred tracklaying cranes and construction method | |
| CN207918272U (en) | A kind of locomotive crane | |
| CN102633194A (en) | Railway crane for high-speed railway rescue and construction | |
| CN103306200A (en) | Detection and rescue operation vehicle for high-speed railway viaduct | |
| CN104532734B (en) | A kind of lift bridge | |
| CN205529914U (en) | Tunnel case roof beam structure bridge crane is crossed to HZQD900 type | |
| CN109515462A (en) | A kind of articulated car transfer bridge device operational method | |
| CN102320331B (en) | Traveling vehicle chassis | |
| CN102826447B (en) | Truss jib crane as well as getting-off structure and position transferring method thereof | |
| CN100395411C (en) | Walking type box beam bridge formation machine | |
| CN104533461B (en) | A kind of tunnel construction trolley horizontal mobile device | |
| CN2871633Y (en) | Walk cased beamed bridge erecting apparatus | |
| CN204849595U (en) | Frame bridge crane landing leg suitable for set up precast beam under heavy grade circumstances | |
| CN204343172U (en) | A kind of Bridge Erector | |
| CN203334180U (en) | High-speed railway overhead bridge detection and rescue working truck | |
| CN109515461A (en) | A kind of articulated car transfer bridge device | |
| CN203947412U (en) | Inspection trolley at the bottom of a kind of Bridge Beam | |
| CN209161340U (en) | A kind of tunnel form transfer car(buggy) | |
| CN202298472U (en) | Third supporting leg for bridge girder erection machine | |
| CN112357849A (en) | Highway-railway dual-purpose overhead working truck | |
| CN204552759U (en) | A kind of tunnel construction trolley horizontal mobile device | |
| CN206088955U (en) | Aerial working platform's chassis and aerial working platform | |
| CN207243311U (en) | Supporting leg connection structure and wheeled crane | |
| CN109573866A (en) | A kind of locomotive crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |