CN215797947U - Electric hoist with safety monitoring device fixed at tail end of steel wire rope winding drum - Google Patents
Electric hoist with safety monitoring device fixed at tail end of steel wire rope winding drum Download PDFInfo
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- CN215797947U CN215797947U CN202120578251.3U CN202120578251U CN215797947U CN 215797947 U CN215797947 U CN 215797947U CN 202120578251 U CN202120578251 U CN 202120578251U CN 215797947 U CN215797947 U CN 215797947U
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Abstract
The utility model discloses an electric hoist with a safety monitoring device fixed at the tail end of a steel wire rope reel, which comprises the steel wire rope reel and a steel wire rope, wherein the head of the steel wire rope is fixed on the steel wire rope reel through a plurality of steel wire rope sleeve piece assemblies, each steel wire rope sleeve piece assembly comprises a sleeve piece used for pressing the steel wire rope and a bolt used for locking the sleeve piece on the steel wire rope reel, a lifting hook is connected onto the steel wire rope, a speed reducing switch and a stop switch are installed at the tail end of the steel wire rope, sleeve piece detection assemblies are arranged on an end plate of a reel seat at one side of the steel wire rope reel, and each sleeve piece detection assembly comprises proximity inductive switches which are the same as the steel wire rope sleeve pieces in number and correspond to the positions of the steel wire rope sleeve pieces. Whether the sleeve sheet is broken or not is detected through the sleeve sheet detection assembly, a closed-loop system of the sleeve sheet detection assembly, the speed reducing switch and the stop switch assembly is utilized, and signals fed back by the three are utilized to effectively judge whether the speed reducing switch or the stop switch has faults or not.
Description
Technical Field
The utility model relates to an electric hoist with a safety monitoring device fixed at the tail end of a steel wire rope reel, and belongs to the technical field of hoisting machinery.
Background
The steel wire rope is fixed at the tail end of the steel wire rope winding drum, the steel wire rope is generally pressed by a plurality of sleeve sheets, the number of fixed turns is ensured, and the friction force between the steel wire rope and the winding drum generated by the positive pressure of the sleeve sheets plays a role in bearing the tension of the steel wire rope.
In the process of continuous rotation of the winding drum and under the alternating use condition of continuous size change of the tensile force of the steel wire rope, the sleeve sheet has the problem of loosening and falling or breaking, and needs to be periodically checked and maintained.
In order to guarantee the normal safe operation of electric block, can set up a speed reduction switch and a stop switch at wire rope's end, when wire rope reel retrieve wire rope to triggering speed reduction switch, the rolling speed can be forced and slowed down, when the rolling to triggering to stop when closing soon, electric block can be forced the stop operation to the incident appears in order to avoid appearing. Because the electric block is generally installed in a high altitude of several tens of meters, the speed reduction switch and the stop switch are generally located in a high altitude near the wire rope reel.
In some installation occasions of the electric hoist, workers are difficult to easily arrive or check, for example, the electric hoist is generally installed in 10-meter high-altitude occasions, once the electric hoist is loosened and not found, a safety accident that a steel wire rope is separated from a winding drum to cause falling of a hanging object occurs, or a speed reduction switch and a stop switch are in failure, the safety accident can be caused, and the development requirement of modern automatic intelligent equipment is increasingly not met by manual inspection.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an electric hoist with a safety monitoring device fixed at the tail end of a steel wire rope winding drum, wherein a sleeve piece detection assembly is used for detecting whether a sleeve piece is broken or not and falls off, and a closed-loop system is formed by the sleeve piece detection assembly, a speed reducing switch and a stop switch assembly, and signals fed back by the sleeve piece detection assembly, the speed reducing switch and the stop switch assembly can be used for effectively judging whether the speed reducing switch or the stop switch has faults or not.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
the utility model provides a wire rope reel end is fixed with electric block of safety monitoring device, includes wire rope reel and wire rope, wire rope's head is fixed through a plurality of wire rope casing piece subassemblies on the wire rope reel, wire rope casing piece subassembly including be used for compressing tightly wire rope's casing piece and be used for with the casing piece locking is in bolt on the wire rope reel, be connected with the lifting hook on the wire rope, speed reduction switch and stop switch are installed to wire rope's end, be provided with casing piece detection component on the reel seat end plate of wire rope reel one side, casing piece detection component include with wire rope casing piece subassembly quantity is the same, the corresponding proximity inductive switch in position.
The tail end of the steel wire rope winding drum is fixed with the electric hoist of the safety monitoring device, and is characterized in that: the steel wire rope sleeve components are spirally distributed on the periphery of the steel wire rope winding drum, the proximity inductive switches are distributed on the support plate in a staggered mode, and each proximity inductive switch and the sleeve piece on the corresponding steel wire rope sleeve component are located in the same vertical plane.
The tail end of the steel wire rope winding drum is fixed with the electric hoist of the safety monitoring device, and is characterized in that: the sleeve piece detection assembly is fixed on the support plate, the support plate is fixed on the end plate of the rolling wheel seat through the connecting piece, the support plate is further provided with a bolt detection assembly, the bolt detection assembly comprises a rotating shaft, a micro switch and a bent sensing plate which is connected to the rotating shaft and can rotate relative to the rotating shaft, an elastic part is connected between the lower end part of the bent sensing plate and the end plate of the rolling wheel seat, and the bent sensing plate is in contact with the micro switch under the action of the elastic part.
The tail end of the steel wire rope winding drum is fixed with the electric hoist of the safety monitoring device, and is characterized in that: the number of the steel wire rope sleeve assemblies is four, and the four steel wire rope sleeve assemblies are spirally and equidistantly distributed on the periphery of the steel wire rope winding drum.
The tail end of the steel wire rope winding drum is fixed with the electric hoist of the safety monitoring device, and is characterized in that: the upper end face of the sleeve sheet is provided with a bulge part used for triggering the proximity inductive switch, and the outer convex surface of the bulge part is an arc surface matched with the curvature radius of the steel wire rope winding drum.
The tail end of the steel wire rope winding drum is fixed with the electric hoist of the safety monitoring device, and is characterized in that: the upper end part of the bent induction plate is of an arc-shaped structure.
The utility model has the beneficial effects that:
1. the proximity inductive switches which are distributed and configured on the positions of the sleeve piece assemblies which are spirally arranged on the steel wire rope winding drum in a corresponding one-to-one correspondence mode are utilized, when the winding drum rotates for one circle, each proximity inductive switch can sense a signal, so that an operation pulse signal is formed, when the winding drum continuously moves, the pulse signals of each proximity inductive switch can alternately appear, when the individual steel wire rope sleeve pieces fall off due to faults, the pulse signals detect the difference, and therefore an alarm can be given;
2. a loop system consisting of the sleeve sheet detection assembly, the speed reducing switch and the stop switch assembly is used, and signals fed back by the sleeve sheet detection assembly, the speed reducing switch and the stop switch assembly can be used for effectively judging whether the speed reducing switch or the stop switch has faults or not;
3. the position of the bolt in the sleeve piece assembly is detected through the bolt detection assembly, if the bolt is loosened and withdrawn, the sensing plate is triggered to deflect, the normally closed microswitch on the other side of the sensing plate is triggered, information is monitored in real time and fed back to the control system, and the alarm or the stop operation is performed according to the requirements of the control system.
Drawings
Fig. 1 is a side view of an electric block having a safety monitoring device fixed to the end of a wire rope reel according to the present invention;
FIG. 2 is a schematic structural diagram of a bolt detection assembly and a nest plate detection assembly of a safety monitoring device fixed at the tail end of a steel wire rope drum according to the utility model;
FIG. 3 is a schematic view showing the unwinding of a wire rope reel of an electric hoist having a safety monitoring device fixed to the end of the wire rope reel;
fig. 4 is an enlarged schematic view of a in fig. 3.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1-4, an electric block with a safety monitoring device fixed at the tail end of a steel wire rope reel comprises a steel wire rope reel 1 and a steel wire rope 5, the head of the steel wire rope 5 is fixed on the steel wire rope reel 1 through a plurality of steel wire rope sleeve sheet assemblies 3, each steel wire rope sleeve sheet assembly 3 comprises a sleeve sheet 31 used for pressing the steel wire rope 5 and a bolt 32 used for locking the sleeve sheet 31 on the steel wire rope reel 1, a lifting hook 8 is connected on the steel wire rope 5, a speed reducing switch 7 and a stop switch 6 are installed at the tail end of the steel wire rope 5, a sleeve sheet detection assembly is arranged on a reel seat end plate 2 on one side of the steel wire rope reel 1, and each sleeve sheet detection assembly comprises proximity inductive switches 47 which are the same as the steel wire rope sleeve sheet assemblies 3 in number and correspond to the positions.
Can effectually accomplish through the nest plate determine module and carry out the one-by-one with its position corresponding wire rope nest plate subassembly, judge whether there is the condition that the fracture drops, in this embodiment, wire rope nest plate subassembly 3's quantity is 4, is the equidistant distribution of heliciform and is in on the contour of wire rope reel 1, proximity inductive switch 47 dislocation distribution is in on the extension board 41, and each proximity inductive switch 47 is in same vertical plane with the nest plate 31 on the wire rope nest plate subassembly 3 that corresponds. When the wire rope drum rotates for one week, only when the four proximity inductive switches 47 are triggered one by one, all the nest plate assemblies are judged to work normally.
Simultaneously, whether the steel wire rope sleeve piece assembly breaks down or not can be judged by utilizing the speed reducing switch, the time difference of signals fed back by the two next proximity inductive switches is received after the speed reducing switch is triggered, and the distance between the two adjacent steel wire rope sleeve piece assemblies is fixed under the normal condition, so that the steel wire rope winding speed of the electric hoist at the moment can be calculated, the calculated speed is compared with a preset value after the preset speed reducing switch is triggered for judgment, if the two numerical values are fixed, the two sleeve piece positions are judged to be normal, and the two adjacent sleeve piece assemblies are detected one by one.
When the speed reducing switch and the stop switch need to be subjected to self-inspection, the electric hoist is started to perform self-inspection operation, when the position point of the speed reducing switch is reached and the position of the stop switch is stopped, whether the function of the stop switch is normal or not and whether the position deviates or not are judged according to the comparison of the number of times of a feedback signal of the proximity inductive switch and a preset value; the position of the stop switch moves reversely to reach the position point of the speed reducing switch, and whether the function of the speed reducing switch is normal or not and whether the position deviates or not are judged according to the comparison of the times of the feedback signals of the proximity inductive switch and a preset value; and calculating the running speed of the electric hoist by combining the time difference of pulse signals fed back one by the proximity inductive switches from the speed reduction switch to the stop switch and the distance between the switches in the process from the reverse running of the stop switch to the speed reduction switch, comparing the set speed by the system, and judging whether the distance between the two deviates from the preset value or not so as to judge whether the system runs stably or not.
The nest plate detection assembly is fixed on a support plate 41, the support plate 41 is fixed on the rolling wheel seat end plate 2 through a connecting piece 46, a bolt detection assembly 4 is further arranged on the support plate 41, the bolt detection assembly 4 comprises a rotating shaft 42, a micro switch 44 and a bent sensing plate 43 which is connected to the rotating shaft 42 and can rotate relative to the rotating shaft 42, an elastic component 45 is connected between the lower end part of the bent sensing plate 43 and the rolling wheel seat end plate 2, and the bent sensing plate 43 is in contact with the micro switch 44 under the action of the elastic component 45.
Through setting up bolt detection subassembly 4 on reel seat end plate 2, when the bolt on the wire rope nest plate subassembly 3 is in normal locking state, the shape of bending tablet 43 contacts micro-gap switch 44 under the effect of elastic component 45, be in the normal close state, if bolt 32 takes place to become flexible to withdraw from then can touch the tablet and take place to deflect, the normal close micro-gap switch of tablet opposite side is triggered, monitor information and feedback control system in real time, report to the police or stop the operation according to control system demand, and the tablet configuration extension spring is in order to prevent the malfunction that vibrations arouse.
The upper end face of the sleeve sheet 31 is provided with a convex part used for triggering the proximity inductive switch 47, and the outer convex surface of the convex part is an arc surface matched with the curvature radius of the steel wire rope winding drum, so that the induction reliability of the proximity inductive switch can be improved.
The upper end part of the bent sensing plate 43 is of an arc-shaped structure, and once the bolt 32 is loosened and withdrawn, the microswitch is immediately triggered.
In summary, according to the electric hoist with the safety monitoring device fixed at the tail end of the steel wire rope winding drum, whether the sleeve sheet is broken or not is detected through the sleeve sheet detection assembly, and a closed-loop system is formed by the sleeve sheet detection assembly, the speed reducing switch and the stop switch assembly, so that whether the speed reducing switch or the stop switch has a fault or not can be effectively judged through signals fed back by the sleeve sheet detection assembly, the speed reducing switch and the stop switch.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a wire rope reel end is fixed with safety monitoring device's electric block, includes wire rope reel (1) and wire rope (5), the head of wire rope (5) is fixed through a plurality of wire rope bushing piece subassemblies (3) on wire rope reel (1), wire rope bushing piece subassembly (3) including be used for compressing tightly nest plate (31) of wire rope (5) and be used for with nest plate (31) locking is in bolt (32) on wire rope reel (1), be connected with lifting hook (8) on wire rope (5), speed reduction switch (7) and stop switch (6), its characterized in that are installed to the end of wire rope (5): be provided with the nest plate determine module on reel seat end plate (2) of wire rope reel (1) one side, nest plate determine module include with wire rope nest plate subassembly (3) the same, the corresponding proximity inductive switch (47) in position of quantity.
2. The electric hoist with the safety monitoring device fixed at the tail end of the steel wire rope reel as claimed in claim 1, is characterized in that: the steel wire rope sleeve component (3) is spirally distributed on the periphery of the steel wire rope winding drum (1), a support plate (41) is fixed on the end plate (2) of the winding drum seat through a connecting piece (46), the proximity inductive switches (47) are distributed on the support plate (41) in a staggered mode, and each proximity inductive switch (47) and a sleeve piece (31) on the corresponding steel wire rope sleeve component (3) are located in the same vertical plane.
3. The electric hoist with the safety monitoring device fixed at the tail end of the steel wire rope reel as claimed in claim 1, is characterized in that: the nest plate detection assembly is fixed on a support plate (41), a bolt detection assembly (4) is further arranged on the support plate (41), the bolt detection assembly (4) comprises a rotating shaft (42), a microswitch (44) and a bending sensing plate (43) which is connected to the rotating shaft (42) and can rotate relative to the rotating shaft, an elastic component (45) is connected between the lower end part of the bending sensing plate (43) and the end plate (2) of the roller seat, and the bending sensing plate (43) is in the effect of the elastic component (45) and is in contact with the microswitch (44).
4. The electric hoist with the safety monitoring device fixed at the tail end of the steel wire rope reel as claimed in claim 2, is characterized in that: the number of the steel wire rope sleeve assemblies (3) is four, and the four steel wire rope sleeve assemblies are spirally and equidistantly distributed on the periphery of the steel wire rope winding drum.
5. The electric hoist with the safety monitoring device fixed at the tail end of the steel wire rope reel as claimed in claim 3, is characterized in that: the upper end face of the sleeve sheet (31) is provided with a convex part used for triggering the proximity inductive switch (47), and the outer convex surface of the convex part is a cambered surface matched with the curvature radius of the steel wire rope winding drum.
6. The electric hoist with the safety monitoring device fixed at the tail end of the steel wire rope reel as claimed in claim 5, is characterized in that: the upper end part of the bent induction plate (43) is of an arc-shaped structure.
Priority Applications (1)
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CN202120578251.3U CN215797947U (en) | 2021-03-22 | 2021-03-22 | Electric hoist with safety monitoring device fixed at tail end of steel wire rope winding drum |
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CN202120578251.3U CN215797947U (en) | 2021-03-22 | 2021-03-22 | Electric hoist with safety monitoring device fixed at tail end of steel wire rope winding drum |
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CN215797947U true CN215797947U (en) | 2022-02-11 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112919309A (en) * | 2021-03-22 | 2021-06-08 | 冠亚机械工业(昆山)有限公司 | Electric hoist with safety monitoring device fixed at tail end of steel wire rope winding drum |
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2021
- 2021-03-22 CN CN202120578251.3U patent/CN215797947U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112919309A (en) * | 2021-03-22 | 2021-06-08 | 冠亚机械工业(昆山)有限公司 | Electric hoist with safety monitoring device fixed at tail end of steel wire rope winding drum |
CN112919309B (en) * | 2021-03-22 | 2024-05-31 | 冠亚机械工业(昆山)有限公司 | Electric hoist with safety monitoring device fixed at tail end of steel wire rope reel |
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