CN215756104U - Winch, emergency braking system and winch drum fault detection device - Google Patents
Winch, emergency braking system and winch drum fault detection device Download PDFInfo
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- CN215756104U CN215756104U CN202120527705.4U CN202120527705U CN215756104U CN 215756104 U CN215756104 U CN 215756104U CN 202120527705 U CN202120527705 U CN 202120527705U CN 215756104 U CN215756104 U CN 215756104U
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- winch drum
- flange
- detector
- measuring point
- fault detection
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Abstract
The utility model discloses a winch, an emergency braking system and a winch drum fault detection device. The winch drum fault detection device comprises a detector and a measuring point, wherein the measuring point is used for being arranged on a flange of a winch drum; and the signal transmitting and receiving end of the detector is close to the measuring point. The detecting device for the fault of the winch drum can judge whether the movement of the winch drum is normal or not by judging whether the rotational movement of the measuring point conforms to the movement law of the winch drum in normal work or not and further can judge whether the transmission system of a reduction gearbox for driving the winch drum has structural faults such as broken shafts or not, so that the braking is automatically or manually realized by equipment when the structural faults occur, and accidents are avoided.
Description
Technical Field
The utility model relates to the field of winches, in particular to a winch drum fault detection device. Still relate to a hoist engine and emergency braking system, including above-mentioned hoist drum fault detection device.
Background
The winch system comprises a winch drum, a reduction gearbox transmission system and the like, wherein the reduction gearbox transmission system is used for driving the winch drum to rotate. When shaft breakage occurs to high-speed shafts, low-speed shafts and other parts of the reduction gearbox transmission system, the shaft parts need to be prevented from continuously rotating by the aid of the band-type brake structure, and damage degree of the internal structure of the reduction gearbox transmission system is prevented from being accelerated due to the fact that the shaft parts continuously rotate.
When the shaft part is prevented from continuously rotating by the band-type brake structure, if the shaft part is not broken, the motor can run idle, and the problem of hook slipping is easily caused. Therefore, how to accurately determine the starting time of the band-type brake structure becomes a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a winch drum fault detection device which can timely acquire a fault signal when a structural fault occurs in a winch drum and a connecting structure thereof, and is convenient for shutting down the winch drum and the connecting structure thereof so as to avoid the expansion of fault damage. Another object of the present invention is to provide an emergency braking system comprising the above mentioned winch drum fault detection device. Still another object of the present invention is to provide a winch including the emergency braking system.
In order to achieve the purpose, the utility model provides a winch drum fault detection device which comprises a detector and a measuring point, wherein the measuring point is used for being arranged on a flange of a winch drum; and the signal transmitting and receiving end of the detector is close to the measuring point.
Preferably, the measuring point is a detection hole which is arranged on the flange in a penetrating manner; the signal receiving and transmitting end comprises a signal generator and a signal receiver which are respectively arranged on two sides of the flange.
Preferably, the measuring point is an induction block fixed on the flange; the detector is specifically an inductance detector.
Preferably, the number of the measuring points is multiple, and all the measuring points are uniformly arranged in a circular manner by taking the circle center of the flange as the center.
Preferably, an alarm indicator is connected to the detector.
The utility model also provides an emergency braking system, which comprises a winch drum with a flange, a braking device arranged close to the winch drum and the winch drum fault detection device;
the detector is connected with a braking circuit used for automatically starting the braking device when the rotating speed of the flange is detected to be outside a preset rotating speed interval.
Preferably, the braking device is embodied as a band-type brake device.
The utility model also provides a winch, which comprises the emergency braking system.
Compared with the background technology, the winch drum fault detection device provided by the utility model comprises a detector and a measuring point, wherein the measuring point is used for being arranged on a flange of a winch drum; the signal transmitting and receiving end of the detector is adjacent to the measuring point.
In the device for detecting the fault of the winch drum, the measuring point is arranged on the flange of the winch drum and has the same motion characteristic with the rotary motion of the flange, so that the detector can acquire the signal frequency of the measuring point in the rotary motion in a circulating detection counting mode and is used for judging whether the rotary motion of the measuring point accords with the motion rule of the winch drum in normal work or not so as to judge whether the winch drum and a transmission control system connected with the winch drum run normally or not. According to the detection result obtained by the detector, the automatic shutdown of the winch drum or the manual shutdown of the winch drum can be realized by related equipment, so that accidents caused by structural faults are avoided.
The emergency braking system provided by the utility model comprises the winch drum fault detection device and a braking device. Therefore, when the winch drum fault detection device detects that the rotation motion of the measuring point does not accord with the motion rule of the winch drum in normal work, the related equipment can automatically open or manually open the brake device, so that the brake device prevents the winch drum from continuously rotating, and accidents caused by structural faults are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an emergency braking system according to an embodiment of the present invention;
fig. 2 is a left side view of fig. 1.
Wherein, 01-flange, 02-detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an emergency braking system according to an embodiment of the present invention; fig. 2 is a left side view of fig. 1.
The utility model provides a winch drum fault detection device, which comprises a detector 1 and a measuring point, wherein the measuring point is used for being arranged on a flange 01 of a winch drum; the detector 1 comprises a signal receiving and transmitting end which is closely adjacent to the measuring point arranged on the flange 01.
In the device for detecting the fault of the winch drum, a measuring point is arranged on a flange 01 of the winch drum, and when the winch drum normally operates, the measuring point rotates by taking the central point of the flange 01 as a center. This rotational movement of the measuring point therefore has the same movement characteristics as the rotational movement of the flange 01, which reflects the movement characteristics of the winch drum 01. The winch drum is controlled by the transmission system of the reduction gearbox of the winch, so the motion characteristic of the winch drum reflects the motion characteristic of the transmission system of the reduction gearbox.
Since the signal transmitting and receiving end of the detector 1 is close to the measuring point, the signal transmitting and receiving end of the detector 1 can acquire the motion parameter of the measuring point.
Therefore, in the failure detection device for the winch drum, the measuring points rotate synchronously along with the rotation of the flange 01 of the winch drum, and the detector 1 acquires the signal frequency of the measuring points in the rotation motion in a circulating detection counting mode and is used for judging whether the rotation motion of the measuring points conforms to the motion rule of the winch drum in normal work. For example, if the signal frequency of the measuring point acquired by the detector 1 is within a preset range, the winch drum and the flange 01 thereof normally operate, which means that a reduction gearbox transmission system for driving the winch drum has no structural fault; if the signal frequency of the measuring point acquired by the detector 1 is a preset minimum value or is close to 0, the winch drum and the flange 01 thereof abnormally operate, which means that a reduction gearbox transmission system for driving the winch drum has structural faults, such as shaft breakage and the like.
According to the detection result of the winch drum fault detection device, the braking of the transmission system of the reduction gearbox can be realized by equipment or manpower, namely, the winch drum is shut down by shutting down the transmission system of the reduction gearbox, so that the fault risks of hook slipping, galloping and the like are avoided, and the occurrence of accidents is reduced or avoided.
The following will further describe the failure detection device of the winch drum according to the present invention with reference to the accompanying drawings and embodiments.
The measuring points adopted by the utility model can be specifically set as detection holes. The detection hole is arranged in a penetrating way along the thickness direction of the flange 01; correspondingly, the signal transceiving end comprises a signal generator and a signal receiver which are respectively arranged at two sides of the flange 01 in the thickness direction.
In the above structure, the signal receiver may use the frequency of the received signal as a basis for determining whether the flange 01 performs the rotation motion at the normal rotation speed, that is, the rotation speed of the flange 01 corresponds to a certain signal frequency range of the signal receiver when the winch drum and the flange 01 thereof are in the normal working state, so that once the reduction gearbox transmission system of the winch has structural faults such as shaft breakage, the signal frequency actually received by the signal receiver is not in the signal frequency range.
Aiming at the measuring point adopted by the utility model, an induction block used for being fixed on the flange 01 can be arranged; suitably, the detector 1 is embodied as an inductive detector.
In the above structure, since the winch drum and the flange 01 thereof are rotated in a fixed axis manner, the induction block provided in the flange 01 is rotated in synchronization with the flange 01. The winch drum fault detection device can also be provided with an upper computer which is electrically connected with the inductance detector. When the induction block rotates along with the flange 01, the induction detector generates a changed signal due to the intermittent alignment of the induction block, and the changed signal is received and processed by control equipment such as an upper computer, so that the upper computer can analyze whether the flange 01 rotates at a normal rotating speed according to the signal acquired by the induction detector.
No matter the detection holes are used as the detection points or the induction blocks are used as the detection points, in the winch drum fault detection device, the detection points can be provided with a plurality of detection points which are all uniformly arranged in a circular manner by taking the circle center of the flange 01 as the center. Illustratively, when the measuring points are specifically arranged as the detecting holes, 4-6 detecting holes can be formed in the flange 01 of the winch drum around the center of the flange 01; when the measuring points are specifically set as the induction blocks, the flange 01 of the winch drum can be provided with 6-10 induction blocks around the circle center of the flange 01.
One or more signal generators and signal receivers corresponding to the detection holes or inductance detectors corresponding to the sensing blocks may be provided.
In the case of an inductance detector, compared with an inductance detector, the inductance detector is provided with a plurality of inductance detectors corresponding to a plurality of sensing blocks, so that the accuracy of detection can be improved.
In addition, in the winch drum fault detection device provided by the utility model, the detector 1 is connected with an alarm indicator, and the alarm indicator can send an alarm signal to an operator by sound, light and other signals, so that the operator can maintain or replace equipment with faults in time.
On the basis of the embodiment, the utility model further provides an emergency braking system. The emergency brake system comprises a winch drum with a flange 01, a brake device arranged next to the winch drum and a winch drum fault detection device as described above.
In the emergency braking system, the winch drum fault detection device is connected with the braking device, and when the winch drum fault detection device detects a fault signal, the signal can be transmitted to the braking device, so that the braking device can automatically stop the operation of the winch drum; the braking device can also be manually started by an operator, so that the braking device stops the operation of the winch drum.
The brake device may be an internal contracting brake device. The contracting brake device can be arranged in the reduction gearbox transmission system, and the reduction gearbox transmission system adopted in the prior art comprises high-speed shafts, low-speed shafts and other like parts, so that contracting brake structures can be respectively arranged in the reduction gearbox transmission system aiming at the high-speed shafts and the low-speed shafts, and the contracting brake device is used for respectively realizing contracting brake on the high-speed shafts and the low-speed shafts after the detector 1 acquires a fault signal.
Further, the detector 1 is connected with a brake circuit for automatically opening the brake device when detecting that the rotation speed of the flange 01 is outside the preset rotation speed interval. When the detector 1 acquires a fault signal, the detector 1 can control the brake device to be automatically started through the brake circuit, so that the brake device stops the operation of the winch drum. Taking a winch drum fault detection device provided with an upper computer as an example, the detector 1 is electrically connected with the braking circuit through the upper computer. When the upper computer analyzes that the rotating speed of the flange 01 is out of the preset rotating speed interval according to the signals collected by the detector 1, the upper computer judges that the winch and the flange 01 have faults, and the upper computer sends control signals to the brake circuit to control the brake device to be automatically started.
On the basis of the various embodiments, the utility model further provides a winch, which comprises the emergency braking system. As regards other equipment than emergency braking systems, for example reduction gearbox transmission systems, reference is made to the related structural arrangements in the prior art.
The winch, the emergency braking system and the winch drum fault detection device provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. A winch drum fault detection device is characterized by comprising a detector (1) and a measuring point, wherein the measuring point is used for being arranged on a flange (01) of a winch drum; the signal transceiving end of the detector (1) is close to the measuring point; the number of the measuring points is multiple, and all the measuring points are uniformly arranged in a circular manner by taking the circle center of the flange (01) as the center; the number of the detectors (1) is multiple.
2. The winch drum fault detection device according to claim 1, wherein the measuring point is a detection hole penetrating through the flange (01); the signal transceiving end comprises a signal generator and a signal receiver which are respectively arranged on two sides of the flange (01).
3. The winch drum fault detection device according to claim 1, characterized in that the measuring point is in particular an induction block fixed to the flange (01); the detector (1) is specifically an inductance detector.
4. A winch drum fault detection arrangement according to claim 1, characterized in that an alarm indicator is connected to the detector (1).
5. An emergency brake system, characterized by a winch drum having a flange (01), a brake device arranged in the immediate vicinity of the winch drum, and a winch drum fault detection device according to any of claims 1 to 4;
the detector (1) is connected with a braking circuit which is used for automatically starting the braking device when the rotating speed of the flange (01) is detected to be out of a preset rotating speed interval.
6. Emergency braking system according to claim 5, characterized in that the braking device is in particular a band-type brake device.
7. A hoisting machine comprising an emergency brake system according to claim 5 or 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527705.4U CN215756104U (en) | 2021-03-12 | 2021-03-12 | Winch, emergency braking system and winch drum fault detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527705.4U CN215756104U (en) | 2021-03-12 | 2021-03-12 | Winch, emergency braking system and winch drum fault detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215756104U true CN215756104U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120527705.4U Active CN215756104U (en) | 2021-03-12 | 2021-03-12 | Winch, emergency braking system and winch drum fault detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215756104U (en) |
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2021
- 2021-03-12 CN CN202120527705.4U patent/CN215756104U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A winch, emergency braking system, and winch drum fault detection device Effective date of registration: 20230915 Granted publication date: 20220208 Pledgee: China Construction Bank Corporation Hangzhou Gaoxin Branch Pledgor: HANGZHOU HUAXIN MECHANICAL & ELECTRICAL ENGINEERING Co.,Ltd. Registration number: Y2023330002054 |