CN212127298U - Welding-free tower crane hoisting weight measuring mechanism - Google Patents
Welding-free tower crane hoisting weight measuring mechanism Download PDFInfo
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- CN212127298U CN212127298U CN202020704139.5U CN202020704139U CN212127298U CN 212127298 U CN212127298 U CN 212127298U CN 202020704139 U CN202020704139 U CN 202020704139U CN 212127298 U CN212127298 U CN 212127298U
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- backup pad
- pulley
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- shaft pin
- pin sensor
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Abstract
A welding-free type tower crane hoisting weight measuring mechanism is provided with an installation part, a supporting piece and a U-shaped plate from one end to the other end, a back plate of the U-shaped plate is connected with the supporting piece, a first side surface and a second side surface of the U-shaped plate are symmetrically provided with through holes, a pulley is arranged between the first side surface and the second side surface, and a shaft pin sensor mechanism sequentially penetrates through the through holes of the first side surface, the pulley and the through holes of the second side surface. To the above-mentioned prior art that is closest, the utility model discloses an installation, maintenance, the inconvenient problem of dismantlement in order to solve weight sensor on the large crane, the type tower machine that provides exempts from to weld hangs heavy measuring mechanism.
Description
Technical Field
The utility model relates to a tower machine hangs heavy measurement technical field, specifically is an exempt from to weld type tower machine hangs heavy measuring mechanism, is applicable to on the plain arm tower machine.
Background
The crane weight detection is always one of the data which is required to be monitored by the crane by the national special inspection institute, and along with the increasing requirement on the working safety of national special equipment, the crane weight detection has higher requirement on the monitoring equipment arranged on the crane. And the requirements for the hoisting weight measurement are explicitly provided in the national standard of the tower crane according to the newly issued GB/T37366 and 2019 standard.
The weight sensors of the existing safety monitoring equipment are arranged at two ends of a steel wire rope of the crane, and due to the particularity of the steel wire rope of the special equipment, after the weight sensors are damaged, the weight sensors are very inconvenient to replace, and the weight sensors are difficult to install due to the problem of the mechanical structure of the crane when the weight sensors are additionally arranged.
Disclosure of Invention
To the above-mentioned prior art that is closest, the utility model discloses an installation, maintenance, the inconvenient problem of dismantlement in order to solve weight sensor on the large crane, the type tower machine that provides exempts from to weld hangs heavy measuring mechanism.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a welding-free type tower crane hoisting weight measuring mechanism is provided with an installation part, a supporting piece and a U-shaped plate from one end to the other end, a back plate of the U-shaped plate is connected with the supporting piece, a first side surface and a second side surface of the U-shaped plate are symmetrically provided with through holes, a pulley is arranged between the first side surface and the second side surface, and a shaft pin sensor mechanism sequentially penetrates through the through holes of the first side surface, the pulley and the through holes of the second side surface.
The axle pin sensor mechanism comprises a stress position of the axle pin sensor mechanism, and the stress position of the axle pin sensor mechanism is positioned in the middle of the inside of the pulley.
The stress position of the shaft pin sensor mechanism is provided with a strain gauge which generates a signal value after being stressed, and when the pulley is stressed under the action of the rope, the pulley presses the strain gauge to enable the strain gauge to generate certain deformation.
Limiting holes are formed in two sides of the strain gauge, and insulating glue is arranged in the limiting holes.
A bearing is arranged in the pulley, and the stress position of the shaft pin sensor mechanism is positioned in the bearing; the pulley is matched with the first side surface and the second side surface through a bearing and a sleeve.
And a clamping groove and a clamping plate capable of being inserted into the clamping groove are arranged on the shaft pin sensor mechanism and positioned at the outer side of the first side surface and/or the second side surface.
The shaft pin sensor mechanism further comprises a shaft pin sensor and a signal transmission port arranged on the shaft pin sensor, and the pulley is used for being connected with a rope.
Above-mentioned support piece includes first backup pad, second backup pad, and first backup pad is equipped with the locking with the connecting portion of second backup pad, heightens the mechanism, and the other end and the installation department of first backup pad are connected, and the other end and the backplate of U template of second backup pad are connected.
The second backup pad passes through bolt assembly with the backplate of U template and is connected, and locking, heightening mechanism realize first backup pad, second backup pad being connected, spacing including setting up a plurality of holes in first backup pad, second backup pad through the cooperation of clearing hole and bolt.
The installation part is a fixing plate, the first supporting plate is fixedly connected with the fixing plate, a plurality of installation holes are formed in the fixing plate, and the fixing plate can be installed on the arm support of the tower crane through the installation holes.
The beneficial effects of the utility model reside in that:
the mechanism is arranged on the arm support of the tower crane in a downward pressing mode, is convenient to disassemble, does not need welding, and does not change the mechanical structure of the crane; the U-shaped plate of the mechanism can rotate freely, and the tension generated by the deformation of the steel wire rope is detected and measured accurately through the pulley set.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Fig. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the construction of the kingpin sensor mechanism of FIG. 1;
FIG. 3 is a schematic view of the pulley and axle pin sensor mechanism of FIG. 1 in connection;
fig. 4 is a schematic structural view of a U-shaped plate of the present invention;
fig. 5 is a schematic structural view of a fixing plate of the present invention;
fig. 6 is a schematic structural diagram of the middle pulley of the present invention.
Detailed Description
As shown in figure 1, a welding-free type tower crane hoisting weight measuring mechanism is provided with an installation part, a supporting piece and a U-shaped plate 4 from one end to the other end, a back plate of the U-shaped plate 4 is connected with the supporting piece, a first side surface 10 and a second side surface 11 of the U-shaped plate 4 are symmetrically provided with through holes 1, a pulley 6 is arranged between the first side surface 10 and the second side surface 11, and a shaft pin sensor mechanism 9 sequentially penetrates through the through holes of the first side surface 10, the pulley 6 and the through holes of the second side surface 11.
As shown in fig. 2 and 3, the axle pin sensor mechanism 9 comprises a force-receiving position 91 of the axle pin sensor mechanism, the force-receiving position 91 of the axle pin sensor mechanism being located in the middle inside the pulley 6.
Two spherical rolling bearings 61 are installed in the pulley 6, and the bearings are fixed by using clamp springs 62. The external circle boundary of the pulley 6 is larger than the external boundary of the sleeve 7, and the internal boundary of the sleeve 7 is larger than the internal boundary of the spherical rolling bearing 61, so that the sleeve 7 is used for fixing the pulley sleeve to prevent the pulley sleeve from sliding but not influencing the rotation and not bearing force. Only the force-bearing position 91 of the pin sensor is deformed by the force.
The stress position 91 of the shaft pin sensor mechanism is provided with a strain gauge which generates a signal value after being stressed, and when the pulley 6 is stressed under the action of the rope, the pulley 6 presses the strain gauge to enable the strain gauge to generate certain deformation.
Limiting holes are formed in two sides of the strain gauge, and insulating glue is arranged in the limiting holes.
Regarding the specific structure of the pulley: a bearing 61 is arranged in the pulley 6, and the stress position 91 of the shaft pin sensor mechanism is positioned in the bearing 61; the pulley is fitted with the first side 10 and the second side 11 by means of the bearing 61 and the sleeve 7.
In order to enhance the stability of the axle pin sensor mechanism 9 after installation; a slot and a catch plate that can be inserted into the slot are provided on the pin sensor arrangement 9 at a position outside the first side 10 and/or the second side 11.
Further regarding the structure of the axle pin sensor mechanism, it also includes an axle pin sensor 92, a signal transmission port arranged on the axle pin sensor 92, and the pulley 6 is used for connecting with the rope.
Further, for the convenience of the adjustability of the connecting portion of the first supporting plate 2 and the second supporting plate 3, the supporting member comprises the first supporting plate 2 and the second supporting plate 3, the connecting portion of the first supporting plate 2 and the second supporting plate 3 is provided with a locking mechanism and a height adjusting mechanism, the other end of the first supporting plate 2 is connected with the installation portion, and the other end of the second supporting plate 3 is connected with the back plate of the U-shaped plate 4.
To facilitate implementation by those skilled in the art, the following examples are further provided:
the shaft pin sensor mechanism is an integrally processed alloy steel structure, wherein a strain gauge which generates a signal value after being stressed is arranged in the stress position of the shaft pin sensor; the middle surface of the shaft pin sensor mechanism is hollowed and filled with insulating glue, and the stress strain gauge is arranged inside the shaft pin sensor through a round hole; a power line and a signal line enter the structure through the signal transmission port and are connected with the strain gauge module to output signals; the shaft pin sensor is fixed on the U-shaped plate by using the clamping plate so as to be fixed and not rotate, and the stress direction of the shaft pin sensor is a fixed direction, so that the shaft pin sensor is fixed to be parallel to the stress direction.
When the device is used, when a heavy object is hung on the steel wire rope, the pulley is in contact with the steel wire rope to generate stress, the force is transmitted to the shaft pin sensor through the pulley, the strain gauge generates deformation to output a corresponding signal, the signal is transmitted to an external receiving instrument through a signal wire, and the signal is converted into display numbers through an instrument program and displayed on a screen.
Support piece includes first backup pad 2, second backup pad 3, and first backup pad 2 is equipped with the locking with the connecting portion of second backup pad 3, heightens the mechanism, and the other end and the installation department of first backup pad 2 are connected, and the other end and the backplate of U template 4 of second backup pad 3 are connected.
The second supporting plate 3 is connected with the back plate of the U-shaped plate 4 through a bolt assembly.
Locking, heighten mechanism are including setting up a plurality of holes in first backup pad 2, second backup pad 3, and the cooperation of clearing hole and bolt realizes being connected, spacing of first backup pad 2, second backup pad 3.
Second backup pad 3 passes through bolted component with the backplate of U template 4 and is connected, and locking, heightening mechanism realize first backup pad 2, the connection of second backup pad 3, spacing including setting up a plurality of holes in first backup pad 2, second backup pad 3 through the cooperation of clearing hole and bolt.
Wherein, the installation department is fixed plate 5, and first backup pad 2 and fixed plate 5 fixed connection are equipped with a plurality of mounting holes 51 on the fixed plate 5, and fixed plate 5 passes through a plurality of mounting holes 51 mountable on tower machine cantilever crane.
Claims (10)
1. The utility model provides a exempt from to weld type tower machine and hang heavy measuring mechanism which characterized in that: the mounting plate, the supporting piece and the U-shaped plate (4) are arranged from one end to the other end, the back plate of the U-shaped plate (4) is connected with the supporting piece, the first side face (10) and the second side face (11) of the U-shaped plate (4) are symmetrically provided with through holes (1), the pulley (6) is arranged between the first side face (10) and the second side face (11), and the shaft pin sensor mechanism (9) sequentially penetrates through the through holes of the first side face (10), the pulley (6) and the through holes of the second side face (11).
2. The welding-free tower crane hoisting weight measuring mechanism of claim 1, characterized in that: the shaft pin sensor mechanism (9) comprises a stress position (91) of the shaft pin sensor mechanism, and the stress position (91) of the shaft pin sensor mechanism is located in the middle of the inside of the pulley (6).
3. The welding-free tower crane hoisting weight measuring mechanism of claim 2, characterized in that: a strain gauge which generates a signal value after being stressed is installed at a stress position (91) of the shaft pin sensor mechanism, and when the pulley (6) is stressed under the action of the rope cable, the pulley (6) presses the strain gauge to enable the strain gauge to generate certain deformation.
4. The welding-free tower crane hoisting weight measuring mechanism of claim 3, characterized in that: limiting holes are formed in two sides of the strain gauge, and insulating glue is arranged in the limiting holes.
5. The welding-free tower crane hoisting weight measuring mechanism according to one of claims 2 to 4, characterized in that: a bearing (61) is arranged in the pulley (6), and the stress position (91) of the shaft pin sensor mechanism is positioned in the bearing (61); the pulley is matched with the first side surface (10) and the second side surface (11) through a bearing (61) and a sleeve (7).
6. The welding-free tower crane hoisting weight measuring mechanism according to one of claims 1 to 4, characterized in that: and a clamping groove and a clamping plate (8) capable of being inserted into the clamping groove are arranged on the shaft pin sensor mechanism (9) and are positioned at the outer side of the first side surface (10) and/or the second side surface (11).
7. The welding-free tower crane hoisting weight measuring mechanism according to one of claims 1 to 4, characterized in that: the shaft pin sensor mechanism (9) further comprises a shaft pin sensor (92) and a signal transmission port arranged on the shaft pin sensor (92), and the pulley (6) is used for being connected with a rope.
8. The welding-free tower crane hoisting weight measuring mechanism according to one of claims 1 to 4, characterized in that: support piece includes first backup pad (2), second backup pad (3), and first backup pad (2) are equipped with the locking with the connecting portion of second backup pad (3), heighten the mechanism, and the other end and the installation department of first backup pad (2) are connected, and the other end and the backplate of U template (4) of second backup pad (3) are connected.
9. The welding-free tower crane hoisting weight measuring mechanism of claim 4, characterized in that: second backup pad (3) pass through bolted component with the backplate of U template (4) and are connected, locking, heighten the mechanism including setting up a plurality of holes on first backup pad (2), second backup pad (3), the cooperation of clearing hole and bolt realizes first backup pad (2), second backup pad (3) be connected, spacing.
10. The welding-free tower crane hoisting weight measuring mechanism of claim 8, characterized in that: the installation department is fixed plate (5), and first backup pad (2) and fixed plate (5) fixed connection are equipped with a plurality of mounting holes (51) on fixed plate (5), and fixed plate (5) are through a plurality of mounting holes (51) mountable on tower machine cantilever crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020704139.5U CN212127298U (en) | 2020-04-30 | 2020-04-30 | Welding-free tower crane hoisting weight measuring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020704139.5U CN212127298U (en) | 2020-04-30 | 2020-04-30 | Welding-free tower crane hoisting weight measuring mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212127298U true CN212127298U (en) | 2020-12-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020704139.5U Active CN212127298U (en) | 2020-04-30 | 2020-04-30 | Welding-free tower crane hoisting weight measuring mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212127298U (en) |
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2020
- 2020-04-30 CN CN202020704139.5U patent/CN212127298U/en active Active
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