Safety protection unloading chute for underground transfer station

Abstract

This utility model discloses a safety protection unloading chute for an underground transfer machine. A side baffle is fixed to one side of the unloading chute, and a movable cover is installed at the top of the side baffle. One side of the movable cover is hinged to the top of the side baffle, and multiple protective chains are fixed to the other side of the movable cover. A telescopic cylinder is installed on one side of the unloading chute to drive the movable cover to stand up or fall down. When the movable cover is down, the chain wall formed by the multiple protective chains faces the side baffle. When the movable cover is up, the multiple protective chains are close to the bottom of the movable cover and are on the same side as the side baffle. This safety protection unloading chute, by controlling the extension and retraction of the telescopic cylinder, allows the movable cover to stand up and fall down, thereby preventing coal from splashing and personnel from accidentally entering, improving the safety and reliability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of coal mining equipment technology, and in particular to a safety protection unloading chute for underground transfer machines. Background Technology

[0002] In the underground working face, the transfer machine mainly transports coal from the scraper conveyor to the belt conveyor. The unloading section of the transfer machine is the coal drop point of the scraper conveyor. Therefore, the unloading chute in the unloading section has a baffle on only one side, and the other side is open. Workers often appear in this open area. In order to prevent coal splashing and personnel from accidentally entering and causing safety problems, a safety protection unloading chute for underground transfer machines is designed. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide a safety protection unloading chute for underground transfer machines, which can not only prevent coal from splashing, but also prevent personnel from accidentally entering, thereby improving safety performance.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A safety protection unloading chute for an underground transfer machine includes an unloading chute body.

[0006] A side baffle is fixed to one side of the unloading trough, and a movable cover is provided at the top of the side baffle. One side of the movable cover is hinged to the top of the side baffle, and multiple protective chains are fixed to the other side of the movable cover.

[0007] A telescopic hydraulic cylinder is installed on one side of the unloading trough to drive the movable cover plate to stand up or fall down. When the movable cover plate is lowered, the chain wall formed by multiple protective chains is opposite to the side baffle. When the movable cover plate is raised, the multiple protective chains are close to the bottom of the movable cover plate and are located on the same side as the side baffle.

[0008] Preferably, a bottom cylinder connecting lug is welded to one side of the unloading trough, a top cylinder connecting lug is welded to the top of the movable cover plate, the bottom end of the telescopic cylinder housing is connected to the bottom cylinder connecting lug by a pin, and the top end of the telescopic cylinder piston rod is connected to the top cylinder connecting lug by a pin.

[0009] Preferably, one side of the movable cover plate is hinged to the top of the side baffle via a round tube and a pin.

[0010] Preferably, one side of the movable cover plate is hinged to the top of the side baffle via a mechanical hinge.

[0011] Preferably, along the direction of coal transport by the transfer machine, each section of the unloading trough is provided with two parallel movable cover plates.

[0012] Preferably, multiple protective chains are welded and fixed to the movable cover plate.

[0013] Preferably, the outer side of the side baffle is provided with an operating handle and a hydraulic control line, and the hydraulic control line is respectively connected to the operating handle and the telescopic cylinder.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] When the safety unloading chute is not at the coal drop point, the piston rod of the telescopic cylinder extends, the movable cover is in a level position, and multiple protective chains hang on the left side to prevent coal from splashing and personnel from accidentally entering. When the safety unloading chute moves to the coal drop point, the telescopic cylinder is retracted by operating the control handle, which in turn raises the movable cover. The raised movable cover effectively increases the height of the side baffle, providing a certain degree of protection for the non-unloading side.

[0016] The safety chain not only prevents coal from splashing out of the transfer machine's unloading chute, but also prevents personnel from accidentally entering the chute. Furthermore, if a worker accidentally falls into the chute, they can reach out and grab the safety chain for immediate self-rescue, preventing further danger.

[0017] In summary, the safety protection unloading chute for underground transfer machines of this utility model not only prevents coal from splashing but also prevents personnel from accidentally entering, thus improving safety performance. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the safety protection unloading chute for the underground transfer machine according to an embodiment of this utility model (at this time, the movable cover plate is flattened);

[0020] Figure 2 yes Figure 1 The right view;

[0021] Figure 3 This is a schematic diagram showing the scraper conveyor unloading material into the transfer conveyor's discharge chute, with the movable cover plate raised.

[0022] In the figure: 1. Unloading trough; 101. Bottom cylinder connecting lug; 2. Side baffle; 3. Movable cover plate; 3a. First movable cover plate; 3b. Second movable cover plate; 301. Top cylinder connecting lug; 4. Protective chain; 5. Telescopic cylinder; 6. Pin; 7. Operating handle; 8. Round pipe; 9. Pin shaft; 10. Scraper conveyor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" 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.

[0025] Furthermore, although terms such as "first," "second," "third," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0026] like Figures 1 to 3 As shown, the safety protection unloading chute for the underground transfer machine includes an unloading chute body 1. A side baffle 2 is fixed on the right side of the unloading chute body 1. A movable cover 3 is installed at the top of the side baffle 2. The right side of the movable cover 3 is hinged to the top of the side baffle 2. Multiple protective chains 4 are fixed on the left side of the movable cover 3. A telescopic cylinder 5 is installed on the right side of the unloading chute body 1 to drive the movable cover 3 to stand up or fall down. When the movable cover 3 is down, the chain wall formed by the multiple protective chains 4 is opposite to the side baffle 2. When the movable cover 3 is up, the multiple protective chains 4 are close to the bottom of the movable cover 3 and are located on the same side as the side baffle 2. That is, the multiple protective chains 4 hang down and are attached to the bottom of the movable cover 3, hanging on the right side of the unloading chute body 1, which reduces the space occupied and avoids the chains affecting the falling material when unloading coal from the scraper conveyor.

[0027] The protective chain 4 not only prevents coal from splashing out of the transfer conveyor's unloading chute, but also prevents personnel from accidentally entering the chute. Furthermore, if a worker accidentally falls into the chute, they can reach for the protective chain 4 to escape in time and prevent further danger. From a cost perspective, the protective chain 4 is cheaper than the protective plate, saving costs while ensuring safety.

[0028] A bottom cylinder connecting lug 101 is welded to one side of the unloading trough 1, and a top cylinder connecting lug 301 is welded to the top of the movable cover plate 3. The bottom end of the housing of the telescopic cylinder 5 is connected to the bottom cylinder connecting lug 101 by a pin 6, and the top end of the piston rod of the telescopic cylinder 5 is connected to the top cylinder connecting lug 301 by a pin 6.

[0029] One side of the movable cover plate 3 is hinged to the top of the side baffle 2 via a round tube 8 and a pin 9. That is, a first round tube is welded to one side of the movable cover plate 3, and a second round tube with the same structure and coaxial axis as the first round tube is welded to the top of the side baffle 2. The pin is inserted into the first round tube and the second round tube to connect the movable cover plate 3 and the side baffle 2.

[0030] Of course, the hinged connection between the right side of the movable cover 3 and the top of the side baffle 2 can also adopt other structures. For example, one side of the movable cover 3 and the top of the side baffle 2 can be hinged by a mechanical hinge.

[0031] Along the coal transport direction S of the transfer machine, each unloading trough 1 is equipped with two parallel movable covers, each controlled by a telescopic cylinder 5. The two parallel movable covers are designated as the first movable cover 3a and the second movable cover 3b. These two movable covers allow for more flexible adjustment of the protective state of each unloading trough 1, enabling the two covers to be in different states. For example, the first movable cover 3a can be in an upright position, while the second movable cover 3b can be in a level position. Alternatively, both covers can be in the same state.

[0032] In some implementations, multiple protective chains 4 are welded and fixed to the movable cover plate 3. Of course, other methods can also be used to fix the protective chains 4 to the movable cover plate 3. For example, a snap-lock lifting ring can be bolted to the movable cover plate 3, and the protective chains 4 can be hung on the snap-lock lifting ring for easy installation and removal.

[0033] In some implementations, the outer side of the side baffle 2 is provided with an operating handle 7 and a hydraulic control line, which are respectively connected to the operating handle 7 and the telescopic cylinder 5. By operating the operating handle 7, the telescopic cylinder 5 is retracted, thereby raising the movable cover 3; or, by operating the operating handle 7, the cylinder is extended, thereby lowering the movable cover 3.

[0034] The working principle of the safety protection unloading chute for the underground transfer machine of this utility model is as follows:

[0035] When the safety protection unloading chute is not at the coal drop point, such as Figure 1 As shown, the piston rod of the telescopic cylinder 5 extends, the movable cover plate 3 is in a flat position, and multiple protective chains 4 hang down on the left side, thus preventing coal from splashing and personnel from accidentally entering. Figure 3As shown, when the safety protection unloading chute reaches the coal drop point, the telescopic cylinder 5 is retracted by operating the operating handle 7, which in turn raises the movable cover 3. The raised movable cover 3 is equivalent to increasing the height of the side baffle 2, which provides a certain degree of protection for the non-unloading side.

[0036] In summary, this safety protection unloading chute uses an operating handle to control the extension and retraction of the telescopic cylinder, thereby raising and lowering the movable cover plate, preventing coal from splashing and personnel from accidentally entering, thus improving the safety and reliability of the equipment.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety protection unloading chute for an underground transfer machine, comprising an unloading chute body, characterized in that, A side baffle is fixed to one side of the unloading trough, and a movable cover is provided at the top of the side baffle. One side of the movable cover is hinged to the top of the side baffle, and multiple protective chains are fixed to the other side of the movable cover. A telescopic hydraulic cylinder is installed on one side of the unloading trough to drive the movable cover plate to stand up or fall down. When the movable cover plate is lowered, the chain wall formed by multiple protective chains is opposite to the side baffle. When the movable cover plate is raised, the multiple protective chains are close to the bottom of the movable cover plate and are located on the same side as the side baffle.

2. A safety shielded discharge chute for an underground transfer station as claimed in claim 1 wherein, The bottom cylinder connecting lug is welded to one side of the unloading trough, and the top cylinder connecting lug is welded to the top of the movable cover plate. The bottom end of the housing of the telescopic cylinder is connected to the bottom cylinder connecting lug by a pin, and the top end of the piston rod of the telescopic cylinder is connected to the top cylinder connecting lug by a pin.

3. A safety shielded discharge chute for an underground plow conveyor as defined in claim 2, wherein, One side of the movable cover plate is hinged to the top of the side baffle plate via a round tube and a pin.

4. A safety shielded discharge chute for an underground plow conveyor as defined in claim 3, wherein, One side of the movable cover is hinged to the top of the side baffle via a mechanical hinge.

5. A safety shielded discharge chute for an underground plow as claimed in claim 2 or 3, characterised in that, Along the direction of coal transport by the transfer machine, each section of the unloading trough is equipped with two parallel movable cover plates.

6. A safety shielded discharge chute for an underground plow conveyor as defined in claim 1 wherein, Multiple protective chains are welded and fixed to the movable cover plate.

7. The safety protection unloading chute for an underground transfer machine as described in claim 1, characterized in that, An operating handle and a hydraulic control line are provided on the outer side of the side baffle. The hydraulic control line is connected to the operating handle and the telescopic cylinder, respectively.

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