CN214570305U - Tower crane with real-time monitoring function of hoisting weight - Google Patents
Tower crane with real-time monitoring function of hoisting weight Download PDFInfo
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- CN214570305U CN214570305U CN202120563648.5U CN202120563648U CN214570305U CN 214570305 U CN214570305 U CN 214570305U CN 202120563648 U CN202120563648 U CN 202120563648U CN 214570305 U CN214570305 U CN 214570305U
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Abstract
The utility model discloses a tower crane with jack-up weight real-time supervision function includes truss (10) at least, truss (10) cross-section is triangle-shaped, its characterized in that: be equipped with leading pulley A (2), leading pulley B (4) and dynamometry pulley (5) on truss (10), upper portion and lower part at truss (10) are established respectively in leading pulley A (2) and leading pulley B (4), dynamometry pulley (5) set up on mount (13), and on dynamometry pulley (5) were in the horizontal line between leading pulley A (2) and leading pulley B (4), the one end and truss (10) lower part of mount (13) are articulated, and the other end is articulated with force sensor (3), the other end of force sensor (3) is articulated with the upper portion of truss (10), and mount (13) vertical setting forms the contained angle between force sensor (3) and mount (13), the contained angle is 150.
Description
Technical Field
The utility model belongs to mechanical equipment for the building, concretely relates to tower crane with real-time supervision jack-up weight.
Background
With the increase of the national construction investment, high-rise and super high-rise buildings lead a new urbanization construction trend, and with the improvement of the labor productivity of construction enterprises, the construction process is developing towards mechanization and intellectualization, and the tower crane is widely used in the construction because the tower crane has the advantages of high working efficiency, large working range, simple structure, safety, reliability and the like.
However, the traditional tower crane load lifting limiter adopts the combination of the impact iron and the travel switch to utilize the weight of the lifted heavy object to be in direct proportion to the tensile stress of the lifting steel wire rope, and achieves the functions of early warning and limiting through mechanisms such as position change, mechanical contact and triggering, but the load lifting limiter can not timely monitor and display the weight of the lifted heavy object, has low sensitivity, is seriously influenced by temperature, has large error, is inconvenient to adjust and install, and is easy to cause accidents such as overturning, arm folding, rope breaking and falling of the lifting machinery in use. In order to effectively avoid production safety accidents of the tower crane caused by the load lifting limiter, improve the safety and reliability of the lifting equipment, and timely monitor and display the weight of a lifted heavy object, the applicant develops a tower crane capable of monitoring the lifting weight in real time.
Disclosure of Invention
The utility model discloses a can real-time supervision tower crane jack-up weight's tower crane.
The utility model provides a following technical scheme:
a tower crane with a real-time hoisting weight monitoring function at least comprises a truss (10), wherein the cross section of the truss (10) is triangular, and the tower crane is characterized in that: be equipped with leading pulley A (2), leading pulley B (4) and dynamometry pulley (5) on truss (10), upper portion and lower part at truss (10) are established respectively in leading pulley A (2) and leading pulley B (4), dynamometry pulley (5) set up on mount (13), and on dynamometry pulley (5) were in the horizontal line between leading pulley A (2) and leading pulley B (4), the one end and truss (10) lower part of mount (13) are articulated, and the other end is articulated with force sensor (3), the other end of force sensor (3) is articulated with the upper portion of truss (10), and mount (13) vertical setting forms the contained angle between force sensor (3) and mount (13), the contained angle is 150.
Still be equipped with wire rope (14), wire rope (14)'s one end is fixed at wire rope stiff end (8), and the other end is the free end, wire rope (14) can be around on leading pulley A (2), leading pulley B (4) and dynamometry pulley (5).
The truss is characterized by further comprising a trolley pulley block (6), wherein a hook group (7) is arranged on the trolley pulley block (6), the trolley pulley block (6) can move left and right on the truss (10), and a steel wire rope (14) can be wound on the trolley pulley block (6).
The tension sensor is also provided with a display (9), and the stress can be displayed on the display (9) after the tension sensor (3) is stressed.
Compared with the prior art, the utility model has the advantages of simple structure, the monitoring is accurate.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure principle of the present invention.
Fig. 3 is a force structure diagram of the hook set.
FIG. 4 is a force-bearing structure diagram of the force-measuring pulley.
Shown in the figure: 1 is a steel wire rope, 2 is a guide pulley A, 3 is a tension sensor, 4 is a guide pulley B, 5 is a force measuring pulley, 6 is a trolley pulley block, 7 is a hook group, 8 is a steel wire rope fixed end, 9 is a display, 10 is a truss, 11 is a winch, 12 is a tower top guide pulley, 13 is a fixed frame, and 14 is a steel wire rope.
In fig. 3 and 4: t0 shows that the tension borne by the steel wire rope is F1, F2, F3 and F4 show the tension of the steel wire rope on two sides of the pulley, F5 shows the direction stress of the tension sensor, and F5 is G; l1 and L2 are the distances from the axis of the force measuring pulley to the hinge points at the two ends of the fixed frame.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described with reference to the following examples and figures:
the preferred embodiments of the present invention will be described in detail below.
Example 1: the embodiment discloses tower crane with real-time monitoring function of hoisting weight, refer to fig. 1-4, include truss (10) at least, truss (10) cross-section is triangle-shaped, its characterized in that: be equipped with leading pulley A (2), leading pulley B (4) and dynamometry pulley (5) on truss (10), upper portion and lower part at truss (10) are established respectively in leading pulley A (2) and leading pulley B (4), dynamometry pulley (5) set up on mount (13), and on dynamometry pulley (5) were in the horizontal line between leading pulley A (2) and leading pulley B (4), the one end and truss (10) lower part of mount (13) are articulated, and the other end is articulated with force sensor (3), the other end of force sensor (3) is articulated with the upper portion of truss (10), and mount (13) vertical setting forms the contained angle between force sensor (3) and mount (13), the contained angle is 150.
Still be equipped with wire rope (14), wire rope (14)'s one end is fixed at wire rope stiff end (8), and the other end is the free end, wire rope (14) can be around on leading pulley A (2), leading pulley B (4) and dynamometry pulley (5).
The truss is characterized by further comprising a trolley pulley block (6), wherein a hook group (7) is arranged on the trolley pulley block (6), the trolley pulley block (6) can move left and right on the truss (10), and a steel wire rope (14) can be wound on the trolley pulley block (6).
The tension sensor is also provided with a display (9), and the stress can be displayed on the display (9) after the tension sensor (3) is stressed.
The tension sensor (3) is SF-S-5T.
The display (9) is an MCK-Z-I intelligent display control instrument.
The tension sensor (3) is connected with the display (9) through a wire or a wireless connection.
Through the force measuring pulley 5, the tension sensor 3 and the intelligent control display (9), induction, transmission, analysis display and monitoring are achieved, the weight of a hung heavy object is displayed in the cab in due time, the monitoring data is accurate, the stability is strong, the monitoring is visual and reliable, and safety accidents caused by overweight are effectively restrained.
The working principle is that the same tensile stress is applied to any section by utilizing the transmission of a steel wire rope flexible body, when the multiplying power is unchanged, the weight of a lifted steel wire rope is in direct proportion to the weight of a lifted weight, only the direction of the tensile stress is changed by a fixed pulley in a rope pulley system of the crane, the force is not changed, the tensile stress applied to a weighing instrument is in direct proportion to the weight of the lifted weight of the crane, and a better effect is achieved.
The method comprises the following steps: the hoisting steel wire rope is guided in a truss structure at the rear end arm root of a crane boom through a guide pulley A and a guide pulley B, the tensile stress borne by the steel wire rope is transmitted to a force measuring pulley (5), the force measuring pulley equivalently and timely transmits the tensile stress to a tension sensor (3) through a wheel shaft and the force measuring arm, and when the tensile stress borne by a weighing instrument (the weight of a lifted weight) changes, the weighing instrument can convert the stress change into a resistance change signal and output the resistance change signal through a display.
Setting lifting capacity and adjusting a display; the weighing sensor is correctly installed, stress points at two ends are on the same straight line, the adjusting screw rod is rotated, the stress directions of the tension sensing arm and the sensor are in the angle range shown in the figure, the adjusting nut is locked, and the weighing sensor is prevented from influencing the measurement accuracy of the system due to internal stress. Whether the rope wheel system has the clamping stagnation and groove shedding phenomenon is checked, and all the pulley blocks are flexibly rotated. And (3) lifting the lifting hook (no-load) to a position 1.5 meters away from the crane boom, turning on a display switch, and repeatedly switching on and off the weighing instrument to a system setting interface, wherein the time is generally 2-3. Checking whether the instrument displays '0' when being started in a stable state, or pressing a 'zero setting' key of a keyboard of the weighing instrument, forcibly setting zero, or carrying out zero point calibration on the weighing instrument again until the weighing instrument displays normal, namely, the lifting mechanism is in an idle state, then dropping the fishhook to the ground to lift a 200Kg weight, wherein the distance is 0.5-1M from the ground, if the display value of the display is 200, the display value is determined by pressing a determination key, otherwise, the output value of the display is calibrated to 200Kg through an up-down rolling key (an addition-subtraction key), and the third step is to lift a rated lifting weight of the crane, debugging by the same method, ensuring that the output value of the display is consistent with the actual weight of the lifted weight through the debugging of three weight points and the linear compensation function of the tension weighing instrument, and reading is accurate and reliable.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (5)
1. A tower crane with a real-time hoisting weight monitoring function at least comprises a truss (10), wherein the cross section of the truss (10) is triangular, and the tower crane is characterized in that: be equipped with leading pulley A (2), leading pulley B (4) and dynamometry pulley (5) on truss (10), upper portion and lower part at truss (10) are established respectively in leading pulley A (2) and leading pulley B (4), dynamometry pulley (5) set up on mount (13), and on dynamometry pulley (5) were in the horizontal line between leading pulley A (2) and leading pulley B (4), the one end and truss (10) lower part of mount (13) are articulated, and the other end is articulated with force sensor (3), the other end of force sensor (3) is articulated with the upper portion of truss (10), and mount (13) vertical setting forms the contained angle between force sensor (3) and mount (13), the contained angle is 150.
2. The tower crane with the real-time hoisting weight monitoring function according to claim 1, wherein: the force-measuring device is provided with a steel wire rope (14), one end of the steel wire rope (14) is fixed at a steel wire rope fixing end (8), the other end of the steel wire rope (14) is a free end, and the steel wire rope (14) can wind on a guide pulley A (2), a guide pulley B (4) and a force-measuring pulley (5).
3. The tower crane with the real-time monitoring function of the hoisting weight according to claim 1 or 2, wherein: the truss is characterized by further comprising a trolley pulley block (6), wherein a hook group (7) is arranged on the trolley pulley block (6), the trolley pulley block (6) can move left and right on the truss (10), and a steel wire rope (14) can be wound on the trolley pulley block (6).
4. The tower crane with the real-time monitoring function of the hoisting weight according to claim 1 or 2, wherein: the tension sensor is also provided with a display (9), and the stress can be displayed on the display (9) after the tension sensor (3) is stressed.
5. The tower crane with the real-time hoisting weight monitoring function according to claim 3, wherein: the tension sensor is also provided with a display (9), and the stress can be displayed on the display (9) after the tension sensor (3) is stressed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023025922 | 2020-12-15 | ||
| CN2020230259228 | 2020-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214570305U true CN214570305U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120563648.5U Active CN214570305U (en) | 2020-12-15 | 2021-03-17 | Tower crane with real-time monitoring function of hoisting weight |
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| Country | Link |
|---|---|
| CN (1) | CN214570305U (en) |
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2021
- 2021-03-17 CN CN202120563648.5U patent/CN214570305U/en active Active
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