Axial anti-collision device for winding drum of elevator
By designing a lift reel axial collision prevention device including a fixed plate, an anti-collision baffle, a guide column, a spring, an induction plate, a buffer pad, a proximity sensor and a linear bearing, the problem of lack of effective anti-collision protection at the end of the steel coil hoist in the prior art is solved, and better anti-collision performance and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202421712435.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The existing steel coil hoists lack effective axial anti-collision protection devices at the end of the reel, which poses safety risks. The existing anti-collision structure requires the proximity switch to be installed inside the reel, which is difficult to observe and inspect.
A lift reel axial collision protection device is designed, including a fixing plate, anti-collision baffle, guide column, spring, induction plate, buffer pad, proximity sensor and linear bearing. Through the combination of these components, anti-collision protection of the end of the reel is achieved, and the proximity sensor is facilitated for maintenance and replacement of the proximity sensor.
The device reduces damage to the operator through the emergency stop function, restores the initial position after the danger is lifted, and the buffer pad plays a role in protecting the switch in the event of a failure, improving the anti-collision performance and simplifying the maintenance of the equipment.
Smart Images
Figure CN222892233U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of steel coil packaging, and in particular relates to an axial anti-collision device for an elevator drum. Background Art
[0002] In the production line of steel coil packaging unit, steel coil elevator plays an important role. Usually, there are more than two elevators in a packaging unit. The operating side of the elevator station usually has operators to perform paper wrapping and other operations. During the frequent movement of the elevator, the end of the roll is the closest to the operator, which poses a safety hazard when performing paper wrapping and other operations.
[0003] Most of the existing steel coil hoists are equipped with hoist limit devices and proximity switches, but no corresponding protection devices are set at the end of the drum to provide secondary protection for the operators. Some targeted anti-collision measures have been proposed for axial anti-collision at the end of the hoist drum, but the existing anti-collision structures require that the proximity switch be installed inside the drum, which is not only not conducive to observing the status of the proximity switch, but also not convenient for the inspection and replacement of the proximity switch. Utility Model Content
[0004] The utility model aims to solve the above-mentioned problem and proposes an axial anti-collision device for a hoist drum.
[0005] In order to achieve the above purpose, this application adopts the following technical solutions:
[0006] An axial anti-collision device for a hoist drum comprises a fixing plate, wherein the fixing plate fixes the entire device to the end of the hoist drum by bolts, an anti-collision baffle is arranged on the frontmost side of the fixing plate, a plurality of guide pillars are arranged on the fixing plate, and the plurality of guide pillars are symmetrically distributed along the center of the fixing plate, one end of the guide pillar is fixedly connected to the anti-collision baffle, the guide pillar and the fixing plate are slidably sleeved by a linear bearing, an induction plate is also installed on the anti-collision baffle, a proximity sensor is installed on the fixing plate, the induction plate is used to sense the signal of the proximity sensor, and a spring sleeved outside the guide pillar is arranged between the anti-collision baffle and the fixing plate.
[0007] Preferably, an axial end baffle is fixedly mounted on one end of the guide column away from the anti-collision baffle.
[0008] Preferably, the proximity sensor is directly mounted on the fixing plate by screws.
[0009] Preferably, a plurality of buffer pads are bonded and connected to the anti-collision baffle plate, and the plurality of buffer pads are arranged along the circumference of the anti-collision baffle plate.
[0010] Preferably, there is a clearance fit between the linear bearing and the guide column.
[0011] Compared with the prior art, the present application provides an axial anti-collision device for a hoist drum, which has the following beneficial effects:
[0012] The axial anti-collision device of the hoist drum is provided with an anti-collision baffle, guide column, spring, induction plate, buffer pad, proximity sensor, linear bearing and fixed plate. First, the bolt hole on the fixed plate is used to fix the device as a whole to the end of the hoist drum with screws. The proximity sensor is connected to the equipment controller. When the anti-collision baffle is collided, the spring is compressed, the guide column slides along the linear bearing, and the induction plate connected to the anti-collision baffle enters the sensing area of the proximity sensor. The controller controls the equipment to stop urgently and realize the anti-collision function, thereby reducing the harm to the operator. After the danger is eliminated, the anti-collision mechanism returns to the initial position under the action of the spring, and the controller resets the proximity switch. When the equipment is powered off or the sensor fails, if a collision occurs, the buffer pad will be pressed against the fixed plate to play the role of buffering and protecting the switch. Not only can the axial anti-collision performance of the hoist drum be better, but also it is convenient for the inspection and replacement of the proximity sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic structural diagram of an axial anti-collision device for an elevator drum proposed in this application.
[0014] In the figure: 1. Anti-collision baffle; 2. Guide column; 3. Spring; 4. Sensor plate; 5. Buffer pad; 6. Proximity sensor; 7. Linear bearing; 8. Fixed plate. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.
[0016] Reference Figure 1 , an axial anti-collision device for a hoist drum, comprising a fixing plate 8, the fixing plate 8 fixes the entire device to the end of the hoist drum by bolts, an anti-collision baffle 1 is arranged on the front side of the fixing plate 8, which is the first part to contact the human body when a collision occurs, the anti-collision baffle 1 is made of lightweight and low hardness materials, a plurality of guide pillars 2 are arranged on the fixing plate 8, and the plurality of guide pillars 2 are symmetrically distributed along the center of the fixing plate 8, and are the main motion execution components of the anti-collision mechanism, one end of the guide pillar 2 is fixedly connected to the anti-collision baffle 1, and the guide pillar 2 and the fixing plate 8 are slidably sleeved by a linear bearing 7, an induction plate 4 is also installed on the anti-collision baffle 1, and a proximity sensor 6 is installed on the fixing plate 8, the induction plate 4 is used to sense the signal of the proximity sensor 6, and must be a ferromagnetic metal part, and a spring 3 sleeved outside the guide pillar 2 is arranged between the anti-collision baffle 1 and the fixing plate 8.
[0017] An end of the guide column 2 away from the anti-collision baffle 1 is fixedly mounted with an axial end baffle to prevent it from being separated from the linear bearing 7.
[0018] The proximity sensor 6 is directly mounted on the fixing plate 8 by means of screws.
[0019] A plurality of buffer pads 5 are bonded and connected to the anti-collision baffle plate 1 . The plurality of buffer pads 5 are arranged circumferentially along the anti-collision baffle plate 1 . The buffer pads 5 are made of rubber and bonded to the anti-collision baffle plate 1 .
[0020] There is a clearance fit between the linear bearing 7 and the guide column 2, and balls are distributed inside to ensure smooth movement of the guide column 2.
[0021] The operating principle of the utility model is now described as follows:
[0022] When the present application is used, the anti-collision baffle 1, guide column 2, spring 3, induction plate 4, buffer pad 5, proximity sensor 6, linear bearing 7 and fixed plate 8 are provided. First, the bolt holes on the fixed plate 8 are used to fix the entire device to the end of the lifting mechanism drum with screws. The proximity sensor 6 is connected to the equipment controller. When the anti-collision baffle 1 is collided, the spring 3 is compressed, and the guide column 2 slides along the linear bearing 7. When the induction plate 4 connected to the anti-collision baffle 1 enters the sensing area of the proximity sensor 6, the controller controls the equipment to stop urgently and realize the anti-collision function, thereby reducing the harm to the operator. After the danger is eliminated, the anti-collision mechanism returns to its initial position under the action of the spring 3, and the controller resets the proximity switch. When the equipment is powered off or the sensor fails, if a collision occurs, the buffer pad 5 will press against the fixed plate 8 to play the role of buffering and protecting the switch, which can not only make the axial anti-collision performance of the hoist drum better, but also facilitate the inspection and replacement of the proximity sensor 6.
[0023] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.
Claims
1. An axial anti-collision device for a hoist drum, comprising a fixing plate (8), wherein the fixing plate (8) fixes the entire device to the end of the hoist drum by bolts, characterized in that: An anti-collision baffle (1) is arranged at the front side of the fixed plate (8), a plurality of guide pillars (2) are arranged on the fixed plate (8), and the plurality of guide pillars (2) are symmetrically distributed along the center of the fixed plate (8), one end of the guide pillar (2) is fixedly connected to the anti-collision baffle (1), and the guide pillar (2) and the fixed plate (8) are slidably sleeved via a linear bearing (7), a sensing plate (4) is also installed on the anti-collision baffle (1), a proximity sensor (6) is installed on the fixed plate (8), and the sensing plate (4) is used to sense the signal of the proximity sensor (6), and a spring (3) sleeved outside the guide pillar (2) is arranged between the anti-collision baffle (1) and the fixed plate (8).
2. The axial anti-collision device for a hoist drum according to claim 1 is characterized in that: An end of the guide column (2) away from the anti-collision baffle (1) is fixedly mounted with a shaft end baffle.
3. The axial anti-collision device for a hoist drum according to claim 2 is characterized in that: The proximity sensor (6) is directly mounted on the fixing plate (8) by means of screws.
4. The axial anti-collision device for a hoist drum according to claim 3 is characterized in that: A plurality of buffer pads (5) are bonded and connected to the anti-collision baffle plate (1), and the plurality of buffer pads (5) are arranged along the circumference of the anti-collision baffle plate (1).
5. The axial anti-collision device for a hoist drum according to claim 4 is characterized in that: There is a clearance fit between the linear bearing (7) and the guide column (2).