CN115108479A - Suspension arm assembly of highway and railway dual-purpose crane and crane - Google Patents
Suspension arm assembly of highway and railway dual-purpose crane and crane Download PDFInfo
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- CN115108479A CN115108479A CN202210716835.1A CN202210716835A CN115108479A CN 115108479 A CN115108479 A CN 115108479A CN 202210716835 A CN202210716835 A CN 202210716835A CN 115108479 A CN115108479 A CN 115108479A
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- crane
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- 239000000725 suspension Substances 0.000 title abstract description 5
- 230000009977 dual effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/66—Outer or upper end constructions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to a suspension arm assembly of a road and railway dual-purpose crane and the crane. The davit subassembly of dual-purpose hoist of highway railway includes: a boom (1); the arm head (2) is arranged at one end of the crane arm (1); the rigid component (5) is connected with the arm head (2) and extends along the extension line direction of the crane arm (1), and a connecting part (53) for directly connecting a lifting appliance (7) is arranged at one end, far away from the arm head (2), of the rigid component (5). The arm head (2) is directly connected with the lifting appliance (7) through the rigid part (5), so that the problem that the height of the lifting appliance lifted off the ground is limited due to the connection of the arm head and the lifting appliance through a pulley block in the prior art is solved.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a suspension arm assembly of a road and railway dual-purpose crane and the crane.
Background
The highway and railway dual-purpose rescue crane is used as railway quick rescue equipment, and plays an extremely important role in the operations of hoisting and transferring railway line obstacles, righting derailed vehicles and the like. However, when the lifting operation is performed in a narrow and low space (such as under a railway tunnel and a contact net), due to the limitation of space, the lifting appliance cannot ensure the height space required during the lifting operation, so that the amplitude of the crane arm or the lifting of the lifting hook cannot be changed, and the centering operation of the derailed vehicle is realized. In the existing hoisting machinery, a lifting appliance is usually installed below a hoisting arm, so that the distance between the lifting appliance and the ground is low on the premise that the height of the arm support is not changed, and the height requirement required by the hoisting operation cannot be met, so that the efficient hoisting operation cannot be carried out.
Patent CN 207645676 discloses a railway crane arm head pulley mechanism, as shown in fig. 1, the railway crane arm head pulley mechanism includes an arm head structure 6 mounted on a crane arm 7, a lifting steel wire rope 1, a guide wheel group 2 and a lifting hook 5; the device also comprises a fixed pulley block 3 and a movable pulley block 4; the fixed pulley block 3 is arranged at the top of the arm head structure 5, the movable pulley block 4 is arranged on the lifting hook 5, and the lifting hook 5 sequentially bypasses the guide pulley block, the fixed pulley block 3 and the movable pulley block 4 through the lifting steel wire rope 1 to be connected with the arm head structure 5. The lifting hook 5 is highest away from the ground under the condition that the lifting appliance and the steel wire rope do not interfere with the arm body when the arm head structure is ensured to change the amplitude, and the requirement of operation is further met.
Disclosure of Invention
The invention aims to provide a suspension arm assembly of a highway and railway dual-purpose crane and the crane, so as to solve the problem that the height of a lifting appliance from the ground is limited due to the fact that an arm head is connected with the lifting appliance through a pulley block in the related art.
According to an aspect of an embodiment of the present invention, there is provided a boom assembly of an over-the-road and railroad crane, the boom assembly of the over-the-road and railroad crane including:
a cargo boom;
the arm head is arranged at one end of the crane arm;
and the rigid component is connected with the arm head and extends along the extension line direction of the crane boom, and one end of the rigid component, which is far away from the arm head, is provided with a connecting part for directly connecting a lifting appliance.
In some embodiments, the rigid member is mounted on the boom head and is rotatable relative to the boom head about an axis of rotation perpendicular to the boom for switching between an operative position and a stowed position, the link being rotated closer to the boom head than the operative position when the rigid member is in the stowed position, and a total length of the boom, the boom head, and the rigid member being less than when the rigid member is in the operative position.
In some embodiments, the boom assembly of the pick-up crane further comprises a first pin for connecting the boom head and the rigid member, the rigid member being configured to rotate about the first pin to switch between the operating position and the stowed position.
In some embodiments, the arm head is provided with a first connecting hole, the rigid member is provided with a first shaft hole, and the first pin is inserted into the first connecting hole and the first shaft hole.
In some embodiments, the arm head further comprises a limiting component for limiting the rotation of the rigid component relative to the arm head.
In some embodiments, the spacing member comprises a second pin,
the arm head is provided with a second connecting hole, the rigid component is provided with a second shaft hole, and when the rigid component is located at the working position, the second pin shaft is inserted into the second connecting hole and the second shaft hole;
the connecting portion comprises a third shaft hole, a third connecting hole is formed in the arm head, and when the rigid component is located at the retracting position, the second pin shaft is inserted into the third shaft hole and the third connecting hole.
In some embodiments, the rotation axis, the second connection hole and the third connection hole are arranged side by side along an edge of an end of the boom head remote from the boom, and the second connection hole is located between the rotation axis and the third connection hole.
In some embodiments, the lower end of the edge of the end of the boom head distal from the boom is closer to the boom than the upper end.
In some embodiments, the rotation axis, the second connection hole and the third connection hole are arranged in sequence from top to bottom.
In some embodiments, the axis of rotation and the second shaft bore are both located at an end of the rigid member proximate the arm head.
In some embodiments, the rigid member includes a rod portion and a bent portion provided at an end of the rod portion close to the arm head, the bent portion extends in a direction intersecting the rod portion, the rotation axis is located at an intersection of the bent portion and the rod portion, and the second shaft hole is provided at an end of the bent portion far from the rod portion.
In some embodiments, the arm head comprises two plate-like members arranged in parallel and spaced apart, the ends of the rigid member being clamped between the two plate-like members.
In some embodiments, the connecting portion is connected to a hanger through a third pin, and the hanger is a frame structure.
According to another aspect of the invention, the crane comprises the boom assembly of the dual-purpose crane for roads and railways.
By applying the technical scheme, the arm head is directly connected with the lifting appliance through the rigid component, and the problem that the height of the lifting appliance from the ground is limited due to the fact that the arm head and the lifting appliance are connected through the pulley block in the related technology is solved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a structural schematic view of a boom of a related art crane;
FIG. 2 is a schematic structural diagram of a boom assembly of the dual-purpose crane for roads and railways according to the embodiment of the invention;
FIG. 3 is a schematic structural view of a boom assembly of the highway-railway dual-purpose crane according to an embodiment of the invention in an operating position;
FIG. 4 is a schematic structural view of a boom assembly of a highway-railway dual-purpose crane according to an embodiment of the invention in a retracted position;
FIG. 5 is a schematic structural diagram of an arm head of a boom assembly of the highway-railway dual-purpose crane according to the embodiment of the invention; and
fig. 6 shows a schematic structural diagram of a rigid component of a boom assembly of a highway-railway dual-purpose crane according to an embodiment of the invention.
In the figure: 1. a cargo boom; 2. an arm head; 21. a first connection hole; 22. a second connection hole; 23. a third connecting hole; 3. a first pin shaft; 4. a limiting component; 5. a rigid member; 51. a first shaft hole; 52. a second shaft hole; 53. a connecting portion; 5a, a bending part; 5b, a rod-shaped portion; 6. a third pin shaft; 7. a hanger.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 2 to 6, the boom assembly of the dual-purpose crane for highway and railway of the present embodiment includes a boom 1, a boom head 2 and a rigid member 5. The arm head 2 is arranged at one end of the crane arm 1; the rigid component 5 is connected with the arm head 2 and extends along the extension line direction of the crane arm 1, and one end of the rigid component 5 far away from the arm head 2 is provided with a connecting part 53 for directly connecting the lifting appliance 7.
In the embodiment, the arm head 2 is directly connected with the lifting appliance 7 through the rigid component 5, so that the problem that the height of the lifting appliance from the ground is limited due to the fact that the arm head is connected with the lifting appliance through the pulley block in the related art is solved.
The rigid part 5 is mounted on the arm head 2 and can rotate around a rotation axis perpendicular to the lifting arm 1 relative to the arm head 2 so as to switch between an operating position and a stored position, the connecting part 53 is rotated to be closer to the arm head 2 than the operating position when the rigid part 5 is in the stored position, and the total length of the lifting arm 1, the arm head 2 and the rigid part 5 is smaller than that when the rigid part 5 is in the operating position when the rigid part 5 is in the stored position.
In some embodiments, the rigid part 5 extends in a horizontal direction with respect to the rotation axis of rotation of the arm head 2, and the rigid part 5 rotates in a vertical plane to switch between the working position and the stowed position.
Wherein, fig. 3 shows a schematic structural view of the rigid component of the boom assembly of the dual-purpose crane for highway and railway of the embodiment in the working position; fig. 4 shows a schematic structural diagram of the boom assembly of the dual-purpose crane for road and railway of the embodiment in the retracted position.
The boom assembly of the road-railway crane further comprises a first pin 3 for connecting the boom head 2 and a rigid member 5, the rigid member 5 being configured to be rotatable about the first pin 3 for switching between the working position and the stowed position.
As shown in fig. 5 and 6, the arm head 2 is provided with a first connection hole 21, the rigid member 5 is provided with a first shaft hole 51, and the first pin 3 is inserted into the first connection hole 21 and the first shaft hole 51.
In some embodiments, the boom assembly of the combined road and railway crane further comprises a limiting member 4 for limiting the rotation of the rigid member 5 relative to the arm head 2.
The limiting part 4 comprises a second pin shaft, the arm head 2 is provided with a second connecting hole 22, the rigid part 5 is provided with a second shaft hole 52, and when the rigid part is located at the working position, the second pin shaft is inserted into the second connecting hole 22 and the second shaft hole 52, as shown in fig. 3.
The connecting portion 53 includes a third shaft hole, the arm head 2 is provided with a third connecting hole 23, and when the rigid member is located at the retracted position, the second pin is inserted into the third shaft hole and the third connecting hole 23, as shown in fig. 4.
As shown in fig. 3 and 4, the rotation axis, the second attachment hole 22, and the third attachment hole 23 are arranged side by side along the edge of the end of the arm head 2 remote from the jib 1, and the second attachment hole 22 is located between the rotation axis and the third attachment hole 23.
The lower end of the edge of the boom head 2 at the end remote from the boom 1 is closer to the boom 1 than the upper end.
The rotation axis (formed by the first pin 3 inserted into the first coupling hole 21 and the first shaft hole 51), the second coupling hole 22, and the third coupling hole 23 are sequentially arranged from top to bottom. The axis of rotation and the second shaft hole 52 are both located at the end of the rigid part 5 near the arm head 2.
As shown in fig. 6, the rigid member 5 includes a rod-shaped portion 5b and a bent portion 5a provided at an end of the rod-shaped portion 5b close to the arm head 2, the bent portion 5a extends in a direction intersecting the rod-shaped portion 5b, the axis of rotation is located at a boundary between the bent portion 5a and the rod-shaped portion 5b, and the second shaft hole 52 is provided at an end of the bent portion 5a away from the rod-shaped portion 5 b.
The arm head 2 includes two plate-like members arranged in parallel and at an interval, and an end portion of the rigid member 5 is sandwiched between the two plate-like members. The two plate-like members are connected by a connecting member therebetween, and when the rigid member 5 is in the retracted position, the rigid member 5 is rotated between the two plate-like members. Both of the plate-like members are perpendicular to the rotation axis of the rigid member 5 relative to the arm head 2.
In some embodiments, the rigid member 5 comprises two plate-like members and a connecting member located between the two plate-like members.
In some embodiments, the connecting portion 53 is connected to a lifting appliance 7 through a third pin 6, the lifting appliance 7 is a frame structure, and the lifting appliance 7 is used for carrying and connecting a lifted device.
When the lifting operation is carried out in the occasion with limited space (such as a tunnel and a contact net), the limiting component 4 (a second pin shaft) is respectively inserted into the second connecting hole 22 of the arm head 2 and the second shaft hole 52 of the rigid component 5, and at the moment, the third pin shaft 6 can be inserted into the connecting part 53 (a third shaft hole) of the rigid component 5 to be connected with the lifting appliance 7.
When working under a non-working state or in a situation where the space is not limited, the rigid member 5 is rotated around the first pin 3 connected with the first connecting hole 21 of the arm head 2 and the first shaft hole 51 of the rigid member 5 until the third connecting hole 23 of the arm head 2 is aligned with the connecting part 53 (third shaft hole) of the rigid member 5, and then the stopper member 4 (second pin) is inserted into the third connecting hole 23 of the arm head 2 and the connecting part 53 (third shaft hole) of the rigid member 5, respectively, to fix the rigid member 5. The length of the cargo boom is minimum under the state of vehicle collection, and the collision of the boom head to a cab is avoided.
The provided highway and railway dual-purpose crane can ensure that enough height space is changed in amplitude or lifted by a lifting hook through a lifting arm when the crane is used for lifting in narrow and low environments (such as railway tunnels and under contact nets) under the condition of not additionally occupying height space, so that the centering operation of derailed vehicles is realized.
The highway and railway dual-purpose crane has the advantages of simple structure and convenience in operation, and can be folded up in a car folding state, so that the length size of the arm support is reduced, and the collision of the arm support to a cab during car folding is avoided.
According to another aspect of the invention, the crane comprises the boom assembly of the dual-purpose crane for roads and railways.
The present invention is not limited to the above exemplary embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A boom assembly of a highway and railway dual-purpose crane, comprising:
a boom (1);
the arm head (2) is arranged at one end of the crane arm (1);
the rigid component (5) is connected with the arm head (2) and extends along the extension line direction of the crane arm (1), and one end, far away from the arm head (2), of the rigid component (5) is provided with a connecting part (53) for being directly connected with a lifting appliance (7).
2. Boom assembly of a crane for highway and railway use according to claim 1, characterized in that said rigid member (5) is mounted on said head (2) and can rotate with respect to said head (2) around an axis of rotation perpendicular to said boom (1) to switch between a working position and a stowed position, said connecting portion (53) being rotated closer to said head (2) than said working position when said rigid member (5) is in the stowed position, the total length of said boom (1), said head (2) and said rigid member (5) being smaller when said rigid member (5) is in the working position than when said rigid member (5) is in the working position.
3. Boom assembly of a pick-and-place crane according to claim 2, further comprising a first pin (3) for connecting the boom head (2) and the rigid member (5), the rigid member (5) being configured to be rotatable about the first pin (3) for switching between the working position and the stowed position.
4. The boom assembly of a crane for highway and railway according to claim 3, wherein the boom head (2) is provided with a first connecting hole (21), the rigid member (5) is provided with a first shaft hole (51), and the first pin (3) is inserted into the first connecting hole (21) and the first shaft hole (51).
5. Boom assembly of a crane for road and railway use according to claim 2, further comprising a limiting member (4) for limiting the rotation of the rigid member (5) with respect to the head (2).
6. Boom assembly of a pick-up crane according to claim 5, characterized in that the stop member (4) comprises a second pin,
the arm head (2) is provided with a second connecting hole (22), the rigid component (5) is provided with a second shaft hole (52), and when the rigid component is located at the working position, the second pin shaft is inserted into the second connecting hole (22) and the second shaft hole (52);
the connecting portion (53) comprises a third shaft hole, a third connecting hole (23) is formed in the arm head (2), and when the rigid component is located at the retracting position, the second pin shaft is inserted into the third shaft hole and the third connecting hole (23).
7. The boom assembly of a crane for highway and railway according to claim 6, characterized in that the rotation axis, the second connection hole (22) and the third connection hole (23) are arranged side by side along the edge of the end of the boom head (2) away from the boom (1), and the second connection hole (22) is located between the rotation axis and the third connection hole (23).
8. The boom assembly of a road-railway dual-purpose crane according to claim 7, characterized in that the lower end of the edge of the boom head (2) at the end far from the boom (1) is closer to the boom (1) than the upper end.
9. Boom assembly of a crane for highway and railway according to claim 6, characterized in that said rotation axis, said second connection hole (22) and said third connection hole (23) are arranged in sequence from top to bottom.
10. Boom assembly of a crane for both road and railway according to claim 6, characterized in that the axis of rotation and the second shaft hole (52) are both located at the end of the rigid part (5) close to the boom head (2).
11. The boom assembly of a crane for highway and railway according to claim 6, wherein the rigid member (5) comprises a rod-shaped portion (5b) and a bent portion (5a) provided at an end of the rod-shaped portion (5b) near the arm head (2), the bent portion (5a) extends in a direction intersecting the rod-shaped portion (5b), the rotation axis is located at a boundary between the bent portion (5a) and the rod-shaped portion (5b), and the second shaft hole (52) is provided at an end of the bent portion (5a) far from the rod-shaped portion (5 b).
12. Boom assembly of a crane for road and railway use according to claim 1, characterized in that said head (2) comprises two plate-like members arranged parallel and spaced apart, between which the ends of said rigid members (5) are clamped.
13. Boom assembly of a crane for highway and railway according to claim 1, characterized in that said connection part (53) is connected to said spreader (7) by a third pin (6), said spreader (7) being a frame structure.
14. A crane comprising a boom assembly of a dual road and railway crane as claimed in any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210716835.1A CN115108479A (en) | 2022-06-23 | 2022-06-23 | Suspension arm assembly of highway and railway dual-purpose crane and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210716835.1A CN115108479A (en) | 2022-06-23 | 2022-06-23 | Suspension arm assembly of highway and railway dual-purpose crane and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115108479A true CN115108479A (en) | 2022-09-27 |
Family
ID=83327469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210716835.1A Pending CN115108479A (en) | 2022-06-23 | 2022-06-23 | Suspension arm assembly of highway and railway dual-purpose crane and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115108479A (en) |
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2022
- 2022-06-23 CN CN202210716835.1A patent/CN115108479A/en active Pending
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