Anti-falling device for feeder trolley

Abstract

The feeder trolley anti-falling device is characterized in that the feeder trolley anti-falling device comprises a pulley, a steel wire rope, a position sensor and a tensioning assembly, the tensioning assembly is installed on a bottom plate, the steel wire rope is arranged in the tensioning assembly, one end of the steel wire rope extends out of the tensioning assembly and is sequentially connected with the pulley and a feeding trolley, the steel wire rope is fixedly connected with the feeding trolley, and the position sensor is fixedly connected with the feeding trolley. The feeding trolley is arranged in the feeding channel, the rear side of the feeding trolley is connected with the telescopic end of the hydraulic cylinder, and a position sensor is arranged at the joint of the feeding trolley and the telescopic end of the hydraulic cylinder. According to the utility model, the position sensor additionally arranged at the joint of the hydraulic cylinder and the feeding trolley is used for monitoring whether the feeding trolley is loose in connection or not, and the designed tensioning assembly is used for positioning the steel wire rope so as to pull the feeding trolley when the steel wire rope is loose, so that the feeding trolley is prevented from falling into the rotary kiln.

Description

Technical Field

[0001] This utility model relates to the field of material feeding and processing technology, and in particular to a fall prevention device for a feeder trolley. Background Technology

[0002] In workshop processing, feeders are used for material feeding operations. Some feeders now use a pushing structure consisting of a feeding trolley and a hydraulic cylinder. The hydraulic cylinder drives the trolley to reciprocate, thus pushing the material into the rotary kiln to complete the feeding operation.

[0003] Since the extension and retraction end of the hydraulic cylinder and the feeding trolley are connected by a pin, there is a risk that the pin may fall off during use. This would cause the feeding trolley to slide into the rotary kiln along the feeding channel, which would not only damage the feeding equipment but also affect the processing of subsequent materials. Therefore, a device is designed to effectively prevent the feeding trolley from falling off. Utility Model Content

[0004] In view of the above-mentioned technical problems, this utility model provides a feeder trolley anti-fall device. By adding a position sensor at the connection between the hydraulic cylinder and the feeder trolley, the device monitors whether the feeder trolley is loose. The device also uses a designed tensioning component to position the wire rope and pull the feeder trolley in case of loosening, thus preventing it from falling into the rotary kiln.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A feeder trolley anti-fall device is characterized by comprising a pulley, a steel wire rope, a position sensor, and a tensioning assembly. The tensioning assembly is mounted on a base plate, and a steel wire rope is disposed within the tensioning assembly. One end of the steel wire rope extends from the tensioning assembly and is sequentially connected to the pulley and the feeder trolley. The steel wire rope is fixedly connected to the feeder trolley, which is positioned within a feeding channel. The rear side of the feeder trolley is connected to the telescopic end of a hydraulic cylinder, and a position sensor is installed at the connection point between the feeder trolley and the telescopic end of the hydraulic cylinder.

[0007] The tensioning assembly comprises a winding box, a winding reel, a coil spring, and a limiting clamping part. The winding box contains a central column on which the winding reel is mounted. The winding reel has a coil spring mounted on it. One end of the coil spring is connected to a slot on the central column, and the other end is connected to a slot on the winding reel. A limiting clamping part is installed at the cable outlet of the winding box.

[0008] The limiting clamping part consists of an electric push rod and a limiting pressure plate. The electric push rod is fixedly installed at the cable outlet of the winding box via a mounting plate. The telescopic end of the electric push rod extends into the cable outlet of the winding box and connects with the limiting pressure plate.

[0009] Preferably, the inner side of the limiting pressure plate is provided with multiple toothed blocks, which makes the limiting pressure plate more stable when limiting and pressing the wire rope.

[0010] Furthermore, an inlet is provided above the feeding channel for feeding materials into the feeding channel.

[0011] Furthermore, the hydraulic cylinder is mounted on the support frame, and the pulley is also mounted on the support frame.

[0012] Furthermore, both the electric push rod and the position sensor are electrically connected to an external controller. The position sensor monitors whether there is any looseness between the feeding trolley and the telescopic end of the hydraulic cylinder, and transmits a signal to the controller to control the electric push rod to start, thereby enabling the limit plate to press the wire rope and complete the limit of the wire rope.

[0013] Furthermore, the position sensor can be a contact sensor or a non-contact photoelectric position sensor.

[0014] The beneficial effects of this utility model are:

[0015] This utility model design comprises a fall prevention device consisting of pulleys, wire rope, position sensor, and tensioning assembly. Under normal operating conditions, the hydraulic cylinder controls the reciprocating movement of the feeding trolley to complete the feeding operation. The wire rope connected to the feeding trolley automatically retracts and releases under the spring structure in the tensioning assembly, thus not affecting the feeding operation of the feeding trolley. When the position sensor detects that the connection between the feeding trolley and the hydraulic cylinder is loose, it immediately sends a signal to the external controller. The controller then activates the electric push rod of the limit clamping part in the tensioning assembly, controlling the limit pressure plate at the outlet of the winding box to press the wire rope, thus limiting it and preventing it from retracting and releasing. This stops the feeding trolley from falling into the rotary kiln due to loosening. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the feeder trolley anti-fall device of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the hydraulic cylinder and the feeding trolley in the anti-fall device for the feeding trolley of this utility model;

[0018] Figure 3 This is a schematic diagram of the winding box structure of the feeder trolley anti-fall device of this utility model;

[0019] As shown in the figure: 1. Wire rope, 2. Base plate, 3. Winding box, 31. Center column, 4. Pulley, 51. Winding reel, 52. Coil spring, 61. Electric push rod, 62. Limiting pressure plate, 7. Support frame, 8. Hydraulic cylinder, 9. Feeding trolley, 10. Position sensor, 11. Feeding channel, 111. Inlet. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Example 1

[0024] As shown in the figure, the hydraulic cylinder 8 is mounted on the support frame 7. The telescopic end of the hydraulic cylinder 8 is connected to the feeding trolley 9, and a position sensor 10 is installed at the connection between the feeding trolley 9 and the telescopic end of the hydraulic cylinder 8. The feeding trolley 9 is set in the feeding channel 11, and an inlet 111 is provided above the feeding channel 11. By feeding material into the feeding channel 11, the material enters the feeding channel 11. The hydraulic cylinder 8 starts and controls the feeding trolley 9 to reciprocate, thereby pushing the material into the rotary kiln to complete the feeding operation. The position sensor 10 can be a contact sensor or a non-contact photoelectric position sensor.

[0025] The rear end of the feeding trolley 9 is connected to one end of the wire rope 1. After the wire rope 1 is connected to the pulley 2 installed on the support frame 1, it is connected to the winding reel 51 in the winding box 3 of the tensioning assembly. Figure 3The reel 51 is mounted on a central post 31 inside the reel box 3. A coil spring 52 is mounted on the reel 51. One end of the coil spring 52 is connected to a slot on the central post 31, and the other end is connected to a slot on the reel 51. It should be noted that the coil spring 52's winding and unwinding mechanism relies primarily on its ability to store and release mechanical energy. When an external force causes the coil spring to rotate, it stores kinetic energy. When the external force disappears, the coil spring releases the stored energy, driving the winding device. Utilizing the coil spring 52 to achieve automatic winding and unwinding is a relatively mature existing technology.

[0026] A limiting clamping part for a universal limiting wire rope 1 is installed at the outlet of the winding box 3. The limiting clamping part consists of an electric push rod 61 and a limiting pressure plate 62. The electric push rod 61 is fixedly installed at the outlet of the winding box 3 by a mounting plate. The telescopic end of the electric push rod 61 extends into the outlet of the winding box 3 and connects with the limiting pressure plate 62. Multiple toothed blocks are provided on the inner side of the limiting pressure plate 62, so that the limiting pressure plate is more stable when limiting and clamping the wire rope.

[0027] Both the electric push rod 62 and the position sensor 10 mentioned above need to be electrically connected to an external controller. The position sensor 10 monitors whether there is any looseness between the feeding trolley 9 and the extension end of the hydraulic cylinder 8, and transmits a signal to the controller to control the electric push rod 62 to start, thereby pressing the limit plate to tighten the wire rope and completing the limit of the wire rope.

[0028] Example 2

[0029] During normal operation, the hydraulic cylinder 8 controls the reciprocating movement of the feeding trolley 9 to complete the feeding operation. The wire rope 1 connected to the feeding trolley 9 is automatically wound up and unwound under the structure of the coil spring 52 in the tensioning assembly, thus not affecting the feeding operation of the feeding trolley 9.

[0030] When the position sensor 10 detects a displacement change at the connection between the feeding trolley 9 and the hydraulic cylinder 8, or if the connection is not released, it determines that a loosening has occurred. It immediately sends a signal to the external controller, which then controls the electric push rod 62 of the limit clamping part in the tensioning assembly to start. This controls the movement of the limit pressure plate 62 at the outlet of the winding box 3, which clamps the wire rope 1 and limits it to prevent it from performing winding and unwinding operations. This helps to hold the feeding trolley 9 to prevent it from falling into the rotary kiln due to loosening.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeder trolley anti-fall device, characterized in that... The device includes a pulley, a wire rope, a position sensor, and a tensioning assembly. The tensioning assembly is mounted on a base plate and contains a wire rope. One end of the wire rope extends from the tensioning assembly and is sequentially connected to the pulley and the feeding trolley. The wire rope is fixedly connected to the feeding trolley, which is located in a feeding channel. The rear of the feeding trolley is connected to the telescopic end of a hydraulic cylinder, and a position sensor is installed at the connection between the feeding trolley and the telescopic end of the hydraulic cylinder.

2. The feeder trolley anti-fall device according to claim 1, characterized in that... The tensioning assembly consists of a winding box, a winding reel, a coil spring, and a limiting clamping part. The winding box has a winding reel mounted on a central column, and a coil spring is mounted on the winding reel. One end of the coil spring is connected to a slot on the central column, and the other end of the coil spring is connected to a slot on the winding reel. The limiting clamping part is installed at the outlet of the winding box.

3. The feeder trolley anti-fall device according to claim 2, characterized in that... The limiting clamping part consists of an electric push rod and a limiting pressure plate. The electric push rod is fixedly installed at the outlet of the winding box by a mounting plate. The telescopic end of the electric push rod extends into the outlet of the winding box and is connected to the limiting pressure plate.

4. The feeder trolley anti-fall device according to claim 3, characterized in that... The inner side of the limiting pressure plate is provided with multiple toothed blocks.

5. The feeder trolley anti-fall device according to claim 1, characterized in that... The feeding channel is provided with an inlet above it.

6. The feeder trolley anti-fall device according to claim 1, characterized in that... The hydraulic cylinder is mounted on the support frame, and the pulley is mounted on the support frame.

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