CN210619986U - Unhooking prevention device for mechanical automatic grabbing beam - Google Patents
Unhooking prevention device for mechanical automatic grabbing beam Download PDFInfo
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- CN210619986U CN210619986U CN201921769234.7U CN201921769234U CN210619986U CN 210619986 U CN210619986 U CN 210619986U CN 201921769234 U CN201921769234 U CN 201921769234U CN 210619986 U CN210619986 U CN 210619986U
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- gate
- rod
- unhooking
- vertical movable
- grabbing
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Abstract
The utility model discloses an anti-unhooking device for a mechanical automatic grabbing beam, which comprises a grabbing beam for hooking a gate, wherein an anti-unhooking structure is arranged between the gate and the grabbing beam, the anti-unhooking structure comprises a supporting seat arranged at the top of the gate, and one side of the supporting seat is provided with a vertical movable supporting rod which penetrates through the gate; the grabbing beam is provided with a vertical movable ejector rod which is coaxial with the vertical movable supporting rod in a penetrating mode, the grabbing beam is further provided with a horizontal rotating shaft which is perpendicular to the gate, a rotating arm and an anti-dropping rod which are fixed in included angle are arranged on the horizontal rotating shaft, the other end of the rotating arm is hinged and connected with the vertical movable ejector rod, and the anti-dropping rod is coaxial with the supporting seat when the vertical movable ejector rod is in a natural suspension state and the distance between the anti-dropping rod and the supporting seat is smaller than the minimum stroke of unhooking. The utility model discloses an mousing-hook process need not artificial intervention, can be used to the automatic roof beam of grabbing of multiple machinery, can fully avoid mechanical automation to grab the roof beam and play to rise, descend and handling in-process emergence mousing-hook accident, effectively reduces the potential safety hazard.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering is with mechanical automatic grabbing roof beam technique and specifically relates to an unhooking prevention device for mechanical automatic grabbing roof beam is related to.
Background
In water conservancy and hydropower engineering, a movable hoist is mostly adopted for opening and closing a porous gate, a porous trash rack and the like, the gate and opening and closing equipment are hung and disconnected by matching with an automatic grabbing beam, and the common grabbing beam mainly comprises a mechanical grabbing beam and a hydraulic grabbing beam. The hydraulic automatic grabbing beam is complex in structure, multiple related devices are involved, and the manufacturing cost is extremely high. The mechanical automatic beam grabbing device is low in cost, simple in operation and maintenance process and convenient to master related technologies and processes, so that the mechanical automatic beam grabbing device is most commonly applied. In general, a mechanical automatic grabbing beam finishes grabbing and unhooking actions by means of self gravity and pulling force of a hoist, and the two states need to be switched by means of manpower. However, if the gate is stuck in the descending process of the gate slot, and the hoist cannot stop in time, the mechanical automatic grabbing beam can automatically unhook, and accidents are caused. Although the probability of such a unhooking accident is small, once it occurs, the consequences are very serious.
Disclosure of Invention
In order to solve the problem, the utility model provides a simple structure, installation and use comparatively simple and convenient be used for mechanical automatic unhooking device who grabs the roof beam can adopt following technical scheme:
the utility model discloses an unhooking prevention device for mechanical automatic grabbing beam, including the grabbing beam that is used for hooking the gate, be provided with unhooking prevention structure between gate and the grabbing beam, unhooking prevention structure includes the bearing that sets up at the gate top, bearing one side is provided with the vertical movable supporting rod that runs through the gate; the grabbing beam is provided with a vertical movable ejector rod coaxial with the vertical movable supporting rod in a penetrating mode, the grabbing beam is further provided with a horizontal rotating shaft perpendicular to the gate, the horizontal rotating shaft is provided with a rotating arm and an anti-dropping rod, an included angle of the rotating arm and the anti-dropping rod is fixed, the other end of the rotating arm is hinged and connected with the vertical movable ejector rod, the anti-dropping rod is coaxial with the supporting seat when the vertical movable ejector rod is in a natural suspension state, and the distance between the anti-dropping rod and the supporting seat is smaller than the minimum stroke of unhooking.
The rotating arm and the anti-dropping rod are fixed with the rotating shaft through a bolt for a hinged hole.
The rotating shaft is connected with the grabbing beam through a self-lubricating shaft sleeve.
The anti-unhooking structure is of two sets.
The utility model provides an mousing-hook device for mechanical automatic grab beam, simple structure, the installation is maintained conveniently, and manufacturing cost is low, and mousing-hook process need not artificial intervention, can be used to multiple mechanical automatic grab beam, can fully avoid mechanical automatic grab beam to play to rise, descend and handling in-process emergence mousing-hook accident, effectively reduce the potential safety hazard.
Drawings
Fig. 1 is a schematic structural view (a state view showing an unhooking prevention function) of the present invention.
Fig. 2 is a schematic view of fig. 1 in a state where the gate is completely lifted without a unhooking prevention function.
Fig. 3 is an enlarged view of a portion a of fig. 1 (the grab beam and the gate are omitted).
Fig. 4 is a left side view of fig. 3.
Fig. 5 is a top view of fig. 3.
Detailed Description
As shown in figures 1-5, the utility model discloses an anticreep hook device for mechanical automatic grab beam, including the grab beam 2 that is used for hook gate 1, install at least one set of mousing-hook structure between gate 1 and the grab beam 2.
In this embodiment, the unhooking prevention structure has two sets, has the same structure, and is symmetrically distributed on the left and right sides of the central shaft of the gate 1 and the grabbing beam 2. Each set of anti-unhooking structure comprises a supporting seat 3 welded at the top of the gate 1, a vertical movable supporting rod 4 is arranged on one side of the supporting seat 3, the vertical movable distance of the supporting seat is 120mm in the embodiment, the vertical movable supporting rod 4 penetrates through a mounting hole formed in the gate 1, the vertical movable supporting rod 4 can ascend by 120mm when the gate 1 is placed in a gate slot or is placed on the ground, and when the gate 3 is grabbed by the grabbing beam 2 to hook to ascend, descend and hoist, the vertical movable supporting rod 4 can descend by 120mm due to self gravity.
The steel mounting plate is welded on the grabbing beam 2, and a vertical movable ejector rod 5 which is coaxial with the vertical movable supporting rod 4 penetrates through the mounting hole of the mounting plate. The length of the vertical movable ejector rod 5 is larger than the height of the grabbing beam 2, when the vertical movable ejector rod is in a natural suspension state, the top of the vertical movable ejector rod is clamped on the mounting plate, the bottom surface of the vertical movable ejector rod is positioned below the grabbing beam 2, and the vertical movable ejector rod and the grabbing beam can ascend together when the vertical movable supporting rod 4 is jacked upwards.
The grabbing beam 2 is also provided with a horizontal rotating shaft 6 vertical to the gate 1, and the horizontal rotating shaft 6 is positioned above the supporting seat 3. A rotating arm 7 is arranged between the horizontal rotating shaft 6 and the vertical movable ejector rod 5, one end of the rotating arm 7 is hinged with the vertical movable ejector rod 5, and the other end of the rotating arm 7 is fixed on the horizontal rotating shaft 6 through a hinged hole by a bolt; the horizontal rotating shaft 6 is also provided with an anti-drop rod 8 which is connected with the horizontal rotating shaft 6 through a hinged hole by a bolt, and the included angle between the horizontal rotating shaft 6 and the anti-drop rod 8 is kept fixed. The horizontal rotating shaft 6 is connected with the grabbing beam 2 through a self-lubricating bearing, so that the flexible swinging state can be kept. When the vertical movable ejector rod 5 is in a natural suspension state, the anti-drop rod 8 is coaxial with the supporting seat 3, and the distance between the anti-drop rod 8 and the supporting seat 3 is smaller than the minimum unhooking stroke H of the grabbing beam 2. For the hook type grab beam, the unhooking stroke is larger than the depth of the hook groove, so that H is 50 mm; for the hanging shaft type grabbing beam, the unhooking stroke is larger than the diameter of the hanging shaft, and H is also 50 mm; for the free type grabbing beam, the unhooking stroke is larger than the length of the neck of the lifting hook, and H is 160 mm; for a rotary grab beam, the unhooking stroke is more than half of the length of the guide groove, and H is 70 mm. The utility model discloses in, when vertical activity ejector pin 5 was in the state of dangling naturally, the interval of anticreep pole 8 and bearing 3 was 20mm, therefore it can be applicable to the automatic roof beam of grabbing of the machinery of above-mentioned all types.
In actual work, the utility model discloses can prevent to grab roof beam 2 and rise, descend and the handling in-process emergence unhook accident snatching the gate 1. As shown in fig. 1, the vertically movable supporting rod 4 on the gate 1 and the vertically movable ejector rod 5 on the grabbing beam 2 are both in a natural suspension state under the action of self gravity, at this time, the anti-dropping rod 8 on the grabbing beam 2 is coaxial with the supporting seat 3 on the gate 1, and the distance H between the two is smaller than the minimum unhooking stroke of the grabbing beam 2. When the gate 1 is blocked in the descending process and the hoist is not stopped in time, the anti-drop rod 8 and the supporting seat 3 can be firstly contacted and propped together, so that the unhooking of the grab beam 2 is prevented, and the accident is avoided.
After the lifting is finished, when the gate 1 is placed in the gate slot or placed on the ground, as shown in fig. 2, the vertical movable supporting rod 4 is contacted with the bottom of the gate slot and rises by 120mm, and is contacted with the bottom surface of the vertical movable ejector rod 5 to lift the gate, the rotating arm 7 hinged on the vertical movable ejector rod 5 is pulled to rotate left/right around the horizontal rotating shaft 6 by about 20 degrees, the anti-drop rod 8 rotates left/right by 20 degrees along with the rotating arm, at the moment, the anti-drop rod 8 deviates from the supporting seat 3, so that the gate 1 can freely rise for a certain distance, and the normal hooking and unhooking of the grabbing beam 2 and the gate 1 are.
Claims (4)
1. The utility model provides an anticreep hook device for mechanical automatic grab beam, is including the grab beam that is used for the hook gate, gate and grab and be provided with anticreep hook structure, its characterized in that between the beam: the anti-unhooking structure comprises a supporting seat arranged at the top of the gate, and a vertical movable supporting rod penetrating through the gate is arranged on one side of the supporting seat; the grabbing beam is provided with a vertical movable ejector rod coaxial with the vertical movable supporting rod in a penetrating mode, the grabbing beam is further provided with a horizontal rotating shaft perpendicular to the gate, the horizontal rotating shaft is provided with a rotating arm and an anti-dropping rod, an included angle of the rotating arm and the anti-dropping rod is fixed, the other end of the rotating arm is hinged and connected with the vertical movable ejector rod, the anti-dropping rod is coaxial with the supporting seat when the vertical movable ejector rod is in a natural suspension state, and the distance between the anti-dropping rod and the supporting seat is smaller than the minimum stroke of unhooking.
2. The unhooking prevention device for the mechanical automatic grabbing beam of claim 1, wherein: the rotating arm and the anti-dropping rod are fixed with the rotating shaft through a bolt for a hinged hole.
3. The unhooking prevention device for the mechanical automatic grabbing beam of claim 1, wherein: the rotating shaft is connected with the grabbing beam through a self-lubricating shaft sleeve.
4. The unhooking prevention device for a mechanical automatic grab beam of one of claims 1 to 3, wherein: the anti-unhooking structure is of two sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921769234.7U CN210619986U (en) | 2019-10-22 | 2019-10-22 | Unhooking prevention device for mechanical automatic grabbing beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921769234.7U CN210619986U (en) | 2019-10-22 | 2019-10-22 | Unhooking prevention device for mechanical automatic grabbing beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210619986U true CN210619986U (en) | 2020-05-26 |
Family
ID=70761612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921769234.7U Active CN210619986U (en) | 2019-10-22 | 2019-10-22 | Unhooking prevention device for mechanical automatic grabbing beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210619986U (en) |
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2019
- 2019-10-22 CN CN201921769234.7U patent/CN210619986U/en active Active
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