CN213059978U - Chassis mechanism and beam erection crane - Google Patents
Chassis mechanism and beam erection crane Download PDFInfo
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- CN213059978U CN213059978U CN202021322044.3U CN202021322044U CN213059978U CN 213059978 U CN213059978 U CN 213059978U CN 202021322044 U CN202021322044 U CN 202021322044U CN 213059978 U CN213059978 U CN 213059978U
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Abstract
The utility model provides a chassis mechanism and a beam erecting crane, wherein the chassis mechanism comprises a chassis body and a supporting structure; at least two supporting structures are arranged on the chassis body; the support structure comprises a first support component and a second support component; the first supporting assembly is connected with the chassis body and is suitable for being connected with the bridge deck in an anchoring mode; the second supporting component is connected with the chassis body, and when the chassis body is stressed to deflect and deform, the second supporting component is suitable for being in contact with the bridge floor, so that the second supporting component and the first supporting component form a statically determinate structure. The utility model discloses a set up the second supporting component, when warping under chassis body atress, second supporting component and bridge floor contact, the second supporting component is according to the load that the real-time adjustment of warping deflection bore under the chassis body for second supporting component and first supporting component form statically determinate structure, from this, avoid the hyperstatic work condition that the chassis supported, make the chassis support safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of the jacking equipment technique and specifically relates to a full gyration frame roof beam jacking equipment particularly, relates to a chassis mechanism and a frame roof beam loop wheel machine.
Background
The chassis support of the common full-rotation beam erecting crane generally adopts a front-back symmetrical four-support-point structure, and in the actual use process, because the width of a bridge deck is larger, the span of two support points of a front cross beam and a rear cross beam is correspondingly larger, and at the moment, the front cross beam and the rear cross beam bear larger bending moment. To the operating mode that the strong point span is big, the load capacity is big, general full-circle gyration frame beam crane sets up two well purlin rigidity fulcrums in the intermediate position of chassis front beam and the intermediate position symmetry of back crossbeam and forms six strong point structures, well purlin rigidity fulcrum is through reserving the deflection and even guarantee during operation that the crossbeam warp and also be not so that well purlin rigidity fulcrum direct action forms uncontrollable hyperstatic structure on the bridge floor, but in the actual work, the deflection is often through calculating a prediction value under the crossbeam, if reserve the deflection and be not enough to offset actual deflection, six strong point structures of uncontrollable hyperstatic structure this moment, well purlin rigidity fulcrum bears the load too big, lead to frame beam crane chassis to support the atress inequality easily, cause the incident.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem how avoid the hyperstatic operating mode that the chassis supported when the overhead crane during operation for the chassis supports safe and reliable.
In order to solve the above problems, the utility model provides a chassis mechanism, which comprises a chassis body and a supporting structure; the chassis body is provided with at least two supporting structures; the support structure comprises a first support component and a second support component; the first support assembly is connected with the chassis body and is suitable for being connected with the bridge deck in an anchoring mode; the second supporting component is connected with the chassis body, and when the chassis body is stressed to deflect, the second supporting component is suitable for being in contact with the bridge floor, so that the second supporting component and the first supporting component form a statically determinate structure.
Optionally, the second support assembly includes a second cylinder, and the second cylinder is connected to the chassis body.
Optionally, the second support assembly further comprises a connecting seat, one end of the connecting seat is connected with the chassis body, and the other end of the connecting seat is connected with the second oil cylinder.
Optionally, the second support assembly further comprises a cylinder support, the cylinder support is adapted to be disposed on the bridge deck, and the cylinder support is adapted to contact with the second cylinder when the chassis body is deformed under a force.
Optionally, the first support assembly includes a first cylinder, and the first cylinder is connected to the chassis body.
Optionally, the first support assembly further comprises an anchor rod, one end of the anchor rod is connected with the chassis body, and the other end of the anchor rod is suitable for being connected with the bridge deck in an anchoring mode.
Optionally, the chassis body includes a front cross member and a rear cross member, and the support structures are disposed on the front cross member and the rear cross member.
Optionally, the first support assemblies are respectively disposed at two ends of the front cross beam and the rear cross beam, and the second support assemblies are respectively disposed in the middle of the front cross beam and the rear cross beam.
Optionally, the chassis body further comprises a left longitudinal beam, a right longitudinal beam and a rotary support, two ends of the left longitudinal beam and the right longitudinal beam are respectively connected with the front cross beam and the rear cross beam, and two ends of the rotary support are respectively fixedly connected with the left longitudinal beam and the right longitudinal beam.
Like this, through setting up the second supporting component, when the chassis body atress is down warped, second supporting component and bridge floor contact, the load that the second supporting component bore is adjusted in real time according to chassis body down warped deformation volume for second supporting component and first supporting component form statically determinate structure, from this, avoid the statically indeterminate operating mode that the chassis supported when the overhead beam crane work, make the chassis support safe and reliable.
Another object of the utility model is to provide a frame beam loop wheel machine to solve the hyperstatic operating mode of how to avoid supporting at frame beam loop wheel machine during operation chassis, make the chassis support safe and reliable.
In order to solve the above problem, the technical scheme of the utility model is realized like this:
a frame crane comprising a chassis mechanism as described above.
The advantages of the beam crane in the prior art are the same as those of the chassis mechanism, and are not described in detail herein.
Drawings
Fig. 1 is a schematic structural view of a chassis body in an embodiment of the present invention;
fig. 2 is a schematic structural view of a front cross beam, a first support assembly and a second support assembly of the chassis mechanism according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second supporting component of the chassis mechanism according to an embodiment of the present invention.
Description of reference numerals:
1-a chassis body, 2-a support structure;
11-front beam, 12-rear beam, 13-left longitudinal beam, 14-right longitudinal beam, 15-slewing bracket, 21-first support component, 22-second support component, 211-first oil cylinder, 212-anchor rod, 221-second oil cylinder, 222-connecting seat, 223-oil cylinder support and 100-bridge floor.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it is to be understood that the forward direction of "X" in the drawings represents the forward direction, and correspondingly, the reverse direction of "X" represents the rearward direction; the forward direction of "Y" represents the right direction, and correspondingly, the reverse direction of "Y" represents the left direction; the forward direction of "Z" represents the upward direction, and correspondingly, the reverse direction of "Z" represents the downward direction, and the terms "X", "Y", "Z", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings of the specification, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The hyperstatic structure refers to a geometrically invariant system with redundant constraints, which is also called a statically indeterminate structure. Redundant constraints are constraints that are added to statically determinate structures. Each redundant constraint brings about a redundant unknown generalized force, so that the total number of the generalized forces exceeds the total number of the independent equilibrium equations which can be listed, and the exceeding number is called the static uncertainty or the static uncertainty times of the structure.
The chassis support of the common full-rotation beam erecting crane generally adopts a front-back symmetrical four-support-point structure, and in the actual use process, because the width of a bridge deck is larger, the span of two support points of a front cross beam and a rear cross beam is correspondingly larger, and at the moment, the front cross beam and the rear cross beam bear larger bending moment. To the operating mode that the strong point span is big, the load capacity is big, general full-circle gyration frame beam crane sets up two well purlin rigidity fulcrums in the intermediate position of chassis front beam and the intermediate position symmetry of back crossbeam and forms six strong point structures, well purlin rigidity fulcrum is through reserving the deflection and even guarantee during operation that the crossbeam warp and also be not so that well purlin rigidity fulcrum direct action forms uncontrollable hyperstatic structure on the bridge floor, but in the actual work, the deflection is often through calculating a prediction value under the crossbeam, if reserve the deflection and be not enough to offset actual deflection, six strong point structures of uncontrollable hyperstatic structure this moment, well purlin rigidity fulcrum bears the load too big, lead to frame beam crane chassis to support the atress inequality easily, cause the incident.
To solve the above problem, as shown in fig. 1 and fig. 2, an embodiment of the present invention provides a chassis mechanism, which includes a chassis body 1 and a supporting structure 2; the chassis body 1 is provided with at least two supporting structures 2; the support structure 2 comprises a first support element 21 and a second support element 22; the first supporting component 21 is connected with the chassis body 1 and is suitable for being in anchoring connection with the bridge deck 100; the second supporting component 22 is connected with the chassis body 1, and when the chassis body 1 is deformed under a force, the second supporting component 22 is suitable for contacting with the bridge deck 100, so that the second supporting component 22 and the first supporting component 21 form a statically determinate structure.
As shown in fig. 1 and 2, the chassis body 1 may be square, circular or various combinations thereof, the chassis body 1 may be a frame structure formed by a plurality of components, at least two support structures 2 are provided on the chassis body 1, in this embodiment, two support structures 2 are provided, the two support structures 2 are connected to the bottom of the chassis body 1 and supported on the bridge deck 100, and the two support structures 2 may be provided at the edge, the center or any position of the chassis body 1; each support structure 2 comprises two first support assemblies 21 and one second support assembly 22, the two first support assemblies 21 and the one second support assembly 22 can be arranged in a triangle or a straight line on a horizontal plane, preferably, in this embodiment, the two first support assemblies 21 and the one second support assembly 22 are arranged in a straight line, so that the support structure 2 has a stronger bearing capacity; two first supporting component 21 are through welding, modes such as riveting or bolted connection respectively with chassis body 1 fixed connection, and support on bridge floor 100 with the bridge floor 100 anchor, make chassis body 1 anchor on bridge floor 100, second supporting component 22 is through welding, modes such as riveting or bolted connection also with chassis body 1 fixed connection, when chassis body 1 atress deflection deformation down, second supporting component 22 and bridge floor 100 contact, and according to the load that chassis body 1 deflection deformation real-time adjustment bore, form statically determinate structure with first supporting component 21.
Wherein statically determinate structure refers to a geometrically invariant structure that allows determination of total internal and binding forces using only equilibrium equations.
Like this, through setting up second supporting component 22, when the deflection deformation under chassis body 1 atress, second supporting component 22 and the contact of bridge floor 100, the load that second supporting component 22 bore according to the deflection deformation real-time adjustment under chassis body 1 for second supporting component 22 and first supporting component 21 form statically determinate structure, from this, avoid the hyperstatic operating mode that the chassis supported when the overhead crane during operation, make the chassis support safe and reliable.
Optionally, the second support assembly 22 comprises a second cylinder 221, and the second cylinder 221 is connected with the chassis body 1.
As shown in fig. 2 and 3, the second cylinder 221 is a constant-reaction cylinder, the constant-reaction cylinder is connected to the chassis body 1, and the pressure of the constant-reaction cylinder is controlled by the hydraulic control system, the constant-reaction cylinder is preset with a safe working pressure K value, when the beam crane works, the chassis body 1 deflects downwards, the second support assembly 22 contacts with the bridge deck 100, and when the bearing load is greater than the K value, the hydraulic control system starts and reduces the pressure of the rodless cavity of the constant-reaction cylinder, and the constant-reaction cylinder contracts to reduce the bearing load, so that the second support assembly 22 always bears a constant counter-force.
Like this, when chassis body 1 atress downwarping deformation, second supporting component 22 and the contact of bridge floor 100, through the load that constant reaction oil cylinder adjusted second supporting component 22 and bore, second supporting component 22 bears a invariable counter-force all the time for second supporting component 22 and first supporting component 21 form statically determinate structure, from this, avoid the hyperstatic operating mode that the chassis supported when the frame beam crane during operation, make the chassis support safe and reliable.
Optionally, the second support assembly 22 further includes a connection seat 222, one end of the connection seat 222 is connected to the chassis body 1, and the other end of the connection seat 222 is connected to the second cylinder 221.
As shown in fig. 2 and 3, one end of the connecting seat 222 is detachably connected with the chassis body 1 through a bolt, the other end of the connecting seat 222 is detachably connected with the second oil cylinder 221 through a bolt, the shape and structure of the connecting seat 222 can be selected to be a suitable shape and structure matched with the shape and structure of the bottom of the chassis body 1 and the shape and structure of the second oil cylinder 221, in this embodiment, the bottom of the chassis body 1 is a plane structure, the second oil cylinder 221 is a circular oil cylinder, the top of the connecting seat 222 is fixedly connected to the chassis body 1 through a bolt, the bottom of the connecting seat 222 is provided with an accommodating cavity structure for accommodating part of the cylinder body of the second oil cylinder 221, and part of the cylinder body of the second oil cylinder 221 extends into the accommodating cavity structure and is fixedly connected with the connecting seat 222 through a bolt.
Like this, link together second hydro-cylinder 221 and chassis body 1 through connecting seat 222, avoid second hydro-cylinder 221 and chassis body 1 direct contact, connecting seat 222 is big with chassis body 1 area of contact, and the bearing load is more even, and is more stable to the support of chassis body 1.
Optionally, the second support assembly 22 further comprises a cylinder support 223, the cylinder support 223 being adapted to be disposed on the deck 100, the cylinder support 223 being adapted to contact the second cylinder 221 when the chassis body 1 is forced to deflect.
As shown in fig. 2 and 3, a cylinder support 223 is fixedly connected to the bridge deck 100 at a position corresponding to each second cylinder 221, each cylinder support 223 can be fixed to the bridge deck 100 by welding, bolting, and the like, the height and size of the cylinder support 223 can be selected as required, when the chassis body 1 is deformed under a force, the top of the cylinder support 223 can contact with the base of the second cylinder 221 to support the second cylinder 221, and the top of the cylinder support 223 can also be provided with an elastic material such as a rubber layer for buffering the pressure.
Like this, through set up an oil cylinder support 223 in the position department that corresponds every second oil cylinder 221 on bridge floor 100, the height and the size of oil cylinder support 223 can be selected as required, when chassis body 1 atress downwarping warp, avoid second oil cylinder 221 and bridge floor 100 direct contact, can reduce the impact to bridge floor 100, and it is more stable to the support of chassis body 1.
Optionally, the first support assembly 21 includes a first cylinder 211, and the first cylinder 211 is connected to the chassis body 1.
As shown in fig. 2, the first cylinder 211 is a common prop cylinder, and the prop cylinder is connected to the chassis body 1. Prop up the hydro-cylinder and can directly pass through bolted connection on chassis body 1 by one end, the other end is directly on bridge floor 100 through bolted connection, also can connect on disk body 1 through connecting seat 222 by one end, the other end passes through hydro-cylinder support 223 and connects on bridge floor 100, preferably, in this implementation, the one end of propping up the hydro-cylinder is passed through connecting seat 222 and is connected on chassis body 1, the other end passes through hydro-cylinder support 223 and connects on bridge floor 100, thus, connecting seat 222 is bigger with chassis body 1 and the area of contact of hydro-cylinder support 223 with bridge floor 100, it is more even to bear the load, support to chassis body 1 more stable.
Thus, the first oil cylinder 211 is connected with the chassis body 1 to support the chassis body 1 on the bridge deck 100, so that the chassis body 1 is prevented from being in direct contact with the bridge deck 100, and the impact on the bridge deck 100 can be reduced.
Optionally, the first support assembly 21 further comprises an anchor rod 212, one end of the anchor rod 212 is connected with the chassis body 1, and the other end of the anchor rod 212 is adapted to be in anchoring connection with the bridge deck 100.
As shown in fig. 2, the first support assembly 21 further includes an anchor rod 212, and the anchor rod 212 may be disposed on the first oil cylinder 211 and connected to the chassis body 1 and the first oil cylinder 211, or disposed around the first oil cylinder 211 and connected to the chassis body 1, in this embodiment, each first support assembly 21 includes two anchor rods 212, the two anchor rods 212 are respectively located at two sides of the first oil cylinder 211 of each first support assembly 21, one end of each anchor rod 212 is connected to the chassis body 1 through bolting, welding or other means, and the other end of each anchor rod 212 is connected to the bridge deck 100 in an anchoring manner, in one embodiment, the bottom of the bridge deck edge truss is provided with a pocket beam, the other ends of the two anchor rods 212 are respectively connected with the two ends of the pocket beam, the two anchor rods 212 and the pocket beam form a hoop structure and are anchored on the bridge deck edge truss, the bridge deck 100 is provided with pull lugs, and the other ends of the two anchor rods 212 penetrate through the pull lugs and are anchored on the bridge deck 100.
Thus, the anchor rod 212 anchors the chassis body 1 to the bridge deck 100, and the chassis body 1 is not easy to move on the bridge deck 100 and is more stable.
Optionally, the chassis body 1 comprises a front beam 11 and a rear beam 12, and the support structure 2 is disposed on each of the front beam 11 and the rear beam 12.
As shown in fig. 1 and fig. 2, in the present embodiment, the chassis body 1 is quadrilateral, the chassis body 1 includes a front beam 11 and a rear beam 12, the front beam 11 and the rear beam 12 are arranged in parallel, each of the front beam 11 and the rear beam 12 is provided with a supporting structure 2, each of the supporting structures 2 is composed of two first supporting assemblies 21 and one second supporting assembly 22, in the length direction of the front beam 11 and the rear beam 12, the two first supporting assemblies 21 and the one second supporting assembly 22 of each of the supporting structures 2 are connected to the bottom of the front beam 11 and the bottom of the rear beam 12 in a straight line, and the second supporting assembly 22 is located between the two first supporting assemblies 21.
Like this, when the front beam 11 and the rear beam 12 atress of chassis body 1 warp down, second supporting component 22 and the contact of bridge floor 100, the load that second supporting component 22 bore according to the real-time adjustment of front beam 11 and rear beam 12 warp the deflection down for second supporting component 22 and first supporting component 21 form statically determinate structure, from this, avoid the hyperstatic operating mode that the chassis supported when the frame beam loop wheel machine during operation, make the chassis support safe and reliable.
Alternatively, the first support assemblies 21 are respectively disposed at both ends of the front cross member 11 and the rear cross member 12, and the second support assemblies 22 are respectively disposed at the middle portions of the front cross member 11 and the rear cross member 12.
Like this, first supporting component 21 sets up at the both ends of front beam 11 and rear beam 12, and the width of adaptation bridge floor 100 that can the at utmost satisfies the construction demand, and when current crossbeam 11 and rear beam 12 atress warp down, the deflection is the biggest in the middle part of front beam 11 and rear beam 12, and second supporting component 22 sets up at the middle part of front beam 11 and rear beam 12, and the supporting role is bigger, and the effect is better.
Optionally, the chassis body 1 further includes a left longitudinal beam 13, a right longitudinal beam 14, and a revolving support 15, two ends of the left longitudinal beam 13 and the right longitudinal beam 14 are respectively connected with the front cross beam 11 and the rear cross beam 12, and two ends of the revolving support 15 are respectively fixedly connected with the left longitudinal beam 13 and the right longitudinal beam 14.
As shown in fig. 1, two ends of the left longitudinal beam 13 and the right longitudinal beam 14 can be connected to two ends of the front cross beam 11 and the rear cross beam 12, the middle part or other positions, in this embodiment, two ends of the left longitudinal beam 13 and the right longitudinal beam 14 are respectively connected to the middle parts of the front cross beam 11 and the rear cross beam 12, two sides of the second supporting assembly 22 are located and keep a distance with the second supporting assembly 22, the swivel bracket 15 is a cross frame, two ends of the cross frame are respectively and fixedly connected to the left longitudinal beam 13 and the right longitudinal beam 14, and two ends of the front cross beam 11 and the rear cross beam 12 are respectively and fixedly connected through a connecting beam.
Like this, chassis body 1 adopts the frame construction of front beam 11, rear beam 12, left longeron 13, right longeron 14, groined type frame and connection beam, and chassis body 1 weight is lighter when guaranteeing structural strength, can alleviate the load of bridge floor 100, improves the lifting capacity of frame beam crane.
Another embodiment of the utility model provides a frame beam loop wheel machine, include such as above-mentioned chassis mechanism.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.
Claims (10)
1. A chassis mechanism, characterized by comprising a chassis body (1) and a support structure (2); the chassis body (1) is provided with at least two supporting structures (2); the support structure (2) comprises a first support assembly (21) and a second support assembly (22); the first supporting component (21) is connected with the chassis body (1) and is suitable for being in anchoring connection with a bridge deck (100); the second supporting component (22) is connected with the chassis body (1), and when the chassis body (1) is deformed under stress, the second supporting component (22) is suitable for being in contact with the bridge deck (100) so that the second supporting component (22) and the first supporting component (21) form a statically determinate structure.
2. Chassis mechanism according to claim 1, characterized in that the second support assembly (22) comprises a second cylinder (221), the second cylinder (221) being connected with the chassis body (1).
3. The chassis mechanism according to claim 2, wherein the second support assembly (22) further comprises a connecting seat (222), one end of the connecting seat (222) is connected with the chassis body (1), and the other end of the connecting seat (222) is connected with the second cylinder (221).
4. Chassis mechanism according to claim 2 or 3, characterized in that said second support assembly (22) further comprises a cylinder support (223), said cylinder support (223) being adapted to be arranged on said deck (100), said cylinder support (223) being adapted to be in contact with said second cylinder (221) when said chassis body (1) is subjected to a force to deflect.
5. Chassis mechanism according to any of claims 1 to 3, characterized in that the first support assembly (21) comprises a first cylinder (211), the first cylinder (211) being connected with the chassis body (1).
6. Chassis mechanism according to claim 5, characterized in that said first support assembly (21) further comprises an anchor rod (212), one end of said anchor rod (212) being connected to said chassis body (1), the other end of said anchor rod (212) being adapted to be in anchoring connection with said deck (100).
7. Chassis mechanism according to any of claims 1 to 3, characterized in that the chassis body (1) comprises a front cross beam (11) and a rear cross beam (12), the support structure (2) being provided on both the front cross beam (11) and the rear cross beam (12).
8. Chassis mechanism according to claim 7, characterized in that said first support assemblies (21) are arranged at the two ends of said front cross member (11) and said rear cross member (12), respectively, and said second support assemblies (22) are arranged in the middle of said front cross member (11) and said rear cross member (12), respectively.
9. The chassis mechanism according to claim 8, wherein the chassis body (1) further comprises a left longitudinal beam (13), a right longitudinal beam (14) and a rotating bracket (15), two ends of the left longitudinal beam (13) and the right longitudinal beam (14) are respectively connected with the front cross beam (11) and the rear cross beam (12), and two ends of the rotating bracket (15) are respectively fixedly connected with the left longitudinal beam (13) and the right longitudinal beam (14).
10. A gantry crane comprising a chassis mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021322044.3U CN213059978U (en) | 2020-07-08 | 2020-07-08 | Chassis mechanism and beam erection crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021322044.3U CN213059978U (en) | 2020-07-08 | 2020-07-08 | Chassis mechanism and beam erection crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213059978U true CN213059978U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021322044.3U Active CN213059978U (en) | 2020-07-08 | 2020-07-08 | Chassis mechanism and beam erection crane |
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| Country | Link |
|---|---|
| CN (1) | CN213059978U (en) |
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- 2020-07-08 CN CN202021322044.3U patent/CN213059978U/en active Active
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