CN215974706U - High-sensitivity integrated speed measuring device for tower crane - Google Patents
High-sensitivity integrated speed measuring device for tower crane Download PDFInfo
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- CN215974706U CN215974706U CN202122285622.1U CN202122285622U CN215974706U CN 215974706 U CN215974706 U CN 215974706U CN 202122285622 U CN202122285622 U CN 202122285622U CN 215974706 U CN215974706 U CN 215974706U
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Abstract
The utility model discloses a high-sensitivity integrated speed measuring device for a tower crane, which comprises a drum shaft, wherein one side of the drum shaft is provided with an anti-top speed measuring mechanism and an anti-stall speed measuring mechanism, the anti-top speed measuring mechanism is used for preventing the top of a lifting hook from being flushed when a lifting hook of the tower crane rises to a limit height, and the anti-stall speed measuring mechanism is used for preventing the stalling of the lifting hook when the speed of the drum is higher than a set speed.
Description
Technical Field
The utility model relates to the technical field of tower cranes, in particular to a high-sensitivity integrated speed measuring device for a tower crane.
Background
The tower crane meets the hoisting performance, simultaneously makes higher and higher requirements on the safety and the reliability of the mechanism, develops innovation, designs a product which is convenient to operate, compact and safe, and is a higher pursuit of the tower crane industry at present.
The hoisting mechanism of the tower crane completes the lifting of materials by matching a winding drum with a suspension arm pulley block to roll a steel wire rope to drive a lifting hook to rise, and in the existing hoisting mechanism of the tower crane, the situation that the lifting hook rises to cross a limit and hits the suspension arm pulley block can often occur, the lifting hook stalls, the lifting hook drops at an uncontrolled flying speed, and great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-sensitivity integrated speed measuring device for a tower crane, which is used for solving the technical problems in the background technology.
The technical purpose of the utility model is realized by the following technical scheme:
the utility model provides a tower machine is with high sensitive integrated speed sensor, includes the reel axle, reel axle one side is provided with scour protection top speed sensor and prevents the stall speed sensor, scour protection top speed sensor is used for preventing that the tower machine lifting hook from rising to the condition emergence of lifting hook conflict top when limit height, prevents that the stall speed sensor is used for preventing that reel speed is greater than when setting for speed, and the condition of lifting hook stall takes place.
Preferably, top-rushing prevention speed measurement mechanism includes the gear wheel that tests the speed with reel axle fixed connection, the outside meshing of gear wheel that tests the speed has first pinion that tests the speed, the outside of first pinion that tests the speed is provided with the stroke stopper, the input shaft of stroke stopper and the axle head fixed connection of first pinion that tests the speed.
Preferably, scour protection top speed measuring mechanism is still including setting up the bearing that is used for guaranteeing first speed pinion rotation concentricity on first speed pinion, the outside of bearing is equipped with the bearing apron that is used for fixed and location bearing.
Preferably, the top impact prevention speed measurement mechanism further comprises an oldham coupling arranged between the input shaft of the stroke limiter and the end of the speed measurement pinion shaft, and the speed measurement pinion and the input shaft of the stroke limiter are connected through the oldham coupling.
Preferably, the stall-proof speed measurement mechanism comprises a second speed measurement pinion meshed with the outer side of the speed measurement gearwheel, a direct current speed measurement generator is arranged on the outer side of the second speed measurement pinion, and an input shaft of the direct current speed measurement generator is fixedly connected with a shaft end of the second speed measurement pinion.
Preferably, the speed-measuring gearwheel is positioned through a central positioning hole of the winding drum shaft, and the speed-measuring gearwheel is fixedly connected with the winding drum shaft through a bolt.
Preferably, the outer side of the speed measurement gear wheel is fixedly provided with a support plate, one side of the support plate, which is far away from the speed measurement gear wheel, is fixedly provided with a stopper support through a bolt, and the stroke stopper is fixedly arranged on the stopper support through a bolt.
Preferably, the direct current tachometer motor is fixedly arranged on the support plate through a bolt.
Has the advantages that: according to the high-sensitivity integrated speed measuring device for the tower crane, the top-impact-prevention speed measuring mechanism and the anti-stall speed measuring mechanism are installed at the shaft end of the winding drum of the hoisting mechanism. The integrated speed measuring system has the advantages of reducing manufacturing cost, being simple and fast to maintain and the like, the safe operation of the tower crane is further enhanced by the effective installation of the novel speed measuring mechanism, and the key step is provided for the safe construction of the construction site.
Drawings
FIG. 1 is a schematic view of the front structure of the assembly of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the assembly of an embodiment of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, the utility model provides a high-sensitivity integrated speed measuring device for a tower crane, which comprises a drum shaft 3, wherein a top-collision prevention speed measuring mechanism is arranged on one side of the drum shaft 3, the top-collision prevention speed measuring mechanism comprises a speed measuring large gear 10 fixedly connected with the drum shaft 3, the speed measuring large gear 10 is positioned through a central positioning hole of the drum shaft 3 and is fixedly connected with the drum shaft 3 through a bolt, a first speed measuring small gear is meshed with the outer side of the speed measuring large gear 10, the speed measuring large gear 10 is positioned through the central positioning hole of the drum shaft 3 of a hoisting mechanism, and the speed measuring small gear is driven to rotate through bolt connection installation; the speed ratio of the large gear and the small gear plays a role in amplifying the speed ratio, so that the speed measurement is more sensitive;
be provided with bearing 6 on the pinion 5 first tests the speed, bearing 6 is used for the supporting and guarantees that pinion 5 first tests the speed rotates concentrically, bearing 6's the outside is equipped with bearing cover plate 7, be used for fixed and location bearing 6, the outside of pinion 5 first tests the speed is provided with stroke limiter 1, the input shaft of stroke limiter 1 passes through crosshead shoe shaft coupling 8 fixed connection with the axle head of pinion 5 first tests the speed, calculate the speed of pinion through stroke limiter 1 and convert wire rope play rope length into, set for the highest stroke of lifting hook, thereby prevent that the lifting hook from dashing the top.
Above-mentioned anti-stall speed measurement mechanism is including the second pinion 11 that tests the speed of meshing in the gear wheel 10 outside that tests the speed, the outside of second pinion 11 that tests the speed is provided with direct current tachogenerator 2, direct current tachogenerator 2's input shaft and the axle head fixed connection of second pinion 11 that tests the speed, the speed of second pinion 11 that tests the speed through direct current tachogenerator 2, when record to rise the reel speed and be greater than the settlement parameter, terminal brake emergency braking, the reel stop operation to protection tower machine safety.
The outer side of the speed measurement gear wheel 10 is provided with a support plate 12, one side of the support plate 12 far away from the speed measurement gear wheel 10 is provided with a stopper support 9 through bolt fixation, the stroke stopper 1 is fixed on the stopper support 9 through bolts, and the direct current speed measurement motor is fixed on the support plate 12 through bolts.
The integrated auxiliary mechanism is used as a more sensitive integrated auxiliary mechanism of the tower crane, has strong practicability, can meet the maximum limit height of the lifting hook, and can effectively prevent the lifting hook from impacting the top; when the speed of a winding drum of the hoisting mechanism is higher than the set speed, the contact acts, the terminal brake acts emergently, and the stall protection of the lifting hook is achieved. The sensitive speed measuring mechanism greatly improves the use safety of the tower crane.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that other parts not specifically described are within the skill or common general knowledge of one of ordinary skill in the art. Without departing from the principle of the utility model, several improvements and modifications can be made, and these improvements and modifications should also be construed as the scope of the utility model.
Claims (8)
1. The utility model provides a tower machine is with high sensitive integrated speed sensor, includes the reel axle, its characterized in that: reel axle one side is provided with scour protection top speed measuring mechanism and anti-stall speed measuring mechanism, scour protection top speed measuring mechanism is used for preventing that the tower machine lifting hook from rising to the condition emergence of lifting hook top when limit height, and anti-stall speed measuring mechanism is used for preventing that the reel speed is greater than when setting for speed, and the condition of lifting hook stall takes place.
2. The high-sensitivity integrated speed measuring device for the tower crane according to claim 1, characterized in that: the scour protection top speed measuring mechanism includes the gear wheel that tests the speed with reel axle fixed connection, the outside meshing of gear wheel that tests the speed has first pinion that tests the speed, the outside of first pinion that tests the speed is provided with the stroke stopper, the input shaft of stroke stopper and the axle head fixed connection of first pinion that tests the speed.
3. The high-sensitivity integrated speed measuring device for the tower crane according to claim 2, characterized in that: the scour protection top speed measuring mechanism is still including setting up the bearing that is used for guaranteeing first pinion rotation concentricity that tests the speed on first pinion, the outside of bearing is equipped with the bearing apron that is used for fixed and location bearing.
4. The high-sensitivity integrated speed measuring device for the tower crane according to claim 2, characterized in that: the anti-collision top speed measuring mechanism further comprises an Oldham coupling arranged between the input shaft of the stroke limiter and the shaft end of the speed measuring pinion, and the speed measuring pinion is connected with the input shaft of the stroke limiter through the Oldham coupling.
5. The high-sensitivity integrated speed measuring device for the tower crane according to claim 1, characterized in that: the anti-stall speed measurement mechanism comprises a second speed measurement small gear meshed with the outer side of the speed measurement big gear, a direct current speed measurement generator is arranged on the outer side of the second speed measurement small gear, and an input shaft of the direct current speed measurement generator is fixedly connected with the shaft end of the second speed measurement small gear.
6. The high-sensitivity integrated speed measuring device for the tower crane according to claim 5, characterized in that: the speed measurement big gear is positioned through a central positioning hole of the winding drum shaft and fixedly connected with the winding drum shaft through a bolt.
7. The high-sensitivity integrated speed measuring device for the tower crane according to claim 2, characterized in that: the outer side of the speed measuring gear wheel is fixedly provided with a supporting plate, one side of the supporting plate, far away from the speed measuring gear wheel, is fixedly provided with a stopper support through a bolt, and the stroke stopper is fixedly arranged on the stopper support through a bolt.
8. The high-sensitivity integrated speed measuring device for the tower crane according to claim 5, characterized in that: the direct current speed measuring motor is fixedly arranged on the supporting plate through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122285622.1U CN215974706U (en) | 2021-09-22 | 2021-09-22 | High-sensitivity integrated speed measuring device for tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122285622.1U CN215974706U (en) | 2021-09-22 | 2021-09-22 | High-sensitivity integrated speed measuring device for tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215974706U true CN215974706U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122285622.1U Active CN215974706U (en) | 2021-09-22 | 2021-09-22 | High-sensitivity integrated speed measuring device for tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215974706U (en) |
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2021
- 2021-09-22 CN CN202122285622.1U patent/CN215974706U/en active Active
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