A kind of unloading buffer device for underground transfer station

Abstract

This utility model discloses a material unloading buffer device for an underground transfer conveyor, comprising two oppositely arranged unloading side baffles, a buffer curtain assembly, and a buffer guide plate assembly. The two unloading side baffles are fixedly connected to the head of the transfer conveyor. The buffer curtain assembly and the buffer guide plate assembly are positioned between the two unloading side baffles, with the buffer curtain assembly located above the buffer guide plate assembly. The buffer curtain assembly includes a curtain shaft, and the buffer guide plate assembly includes a buffer plate mounting shaft. Both ends of the curtain shaft are fixedly connected to the unloading side baffles and are adjustable in position. Both ends of the buffer plate mounting shaft are fixedly connected to the unloading side baffles and are adjustable in position. By adjusting the forward and backward movement of the buffer curtain assembly and the buffer guide plate assembly, the coal flow rate and coal quantity are effectively controlled, thereby improving the coal dropping effect and preventing coal block jamming. This utility model's material unloading buffer device for an underground transfer conveyor not only prevents coal leakage but also reduces the impact of coal on the conveyor belt.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mining equipment, and in particular to a material unloading buffer device for underground transfer machines. Background Technology

[0002] Underground transfer conveyors are key transportation equipment in coal mining. In the underground working face, they primarily transport coal from the scraper conveyor to the belt conveyor. Therefore, the efficiency of the transfer conveyor directly impacts coal mining efficiency. Since the transfer conveyor head is the discharge end, and the belt conveyor receives coal from the discharge end, there is a certain height difference between the transfer conveyor head and the belt conveyor. If the coal falls directly onto the belt conveyor without buffering, coal may leak out. Furthermore, the coal falling from the transfer conveyor head has significant impact force, causing severe damage to the belt conveyor, accelerating belt wear, leading to belt damage, and shortening the belt conveyor's lifespan. Therefore, a buffer device is needed to reduce coal damage to the belt and prevent coal leakage, thereby improving the coal discharge efficiency. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide a material unloading buffer device for underground transfer machines, which can not only prevent coal leakage, but also reduce the impact of coal on the conveyor belt.

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

[0005] A material unloading buffer device for an underground transfer machine includes two oppositely arranged unloading side baffles, a buffer curtain assembly, and a buffer guide plate assembly. The two unloading side baffles are fixedly connected to the head of the transfer machine. The buffer curtain assembly and the buffer guide plate assembly are disposed between the two unloading side baffles, with the buffer curtain assembly located above the buffer guide plate assembly.

[0006] The buffer curtain assembly includes a curtain shaft, and the buffer guide plate assembly includes a buffer plate mounting shaft. Both ends of the curtain shaft are fixedly connected to the unloading side baffle and their positions are adjustable. Both ends of the buffer plate mounting shaft are fixedly connected to the unloading side baffle and their positions are adjustable.

[0007] Preferably, the buffer curtain assembly includes multiple chains and the curtain shaft, with the multiple chains fixed in a row on the curtain shaft.

[0008] Preferably, the curtain shaft is connected to the unloading side baffle via a first limiting mounting block and a first limiting pin. The end of the curtain shaft passes through the first limiting mounting block, which is fixed to the unloading side baffle by a first bolt and nut. The end of the curtain shaft is equipped with a first limiting pin to prevent the curtain shaft from coming off.

[0009] Preferably, the unloading side baffle is provided with an adjusting oblique hole for the curtain shaft to pass through and slide, and the upper and lower sides of the adjusting oblique hole are respectively provided with a row of first upper bolt mounting holes and a row of first lower bolt mounting holes.

[0010] The first limiting mounting block has a curtain shaft mounting hole, a second upper bolt mounting hole and a second lower bolt mounting hole located on the upper and lower sides of the curtain shaft mounting hole. The curtain shaft mounting hole allows the curtain shaft to pass through. The second upper bolt mounting hole corresponds to the first upper bolt mounting hole, and the second lower bolt mounting hole corresponds to the first lower bolt mounting hole. The first bolt nut is installed at the first upper bolt mounting hole and the second upper bolt mounting hole, and at the first lower bolt mounting hole and the second lower bolt mounting hole.

[0011] The end of the curtain shaft is provided with a first limiting pin mounting hole for installing the first limiting pin, and the first limiting pin prevents the curtain shaft from coming out of the curtain shaft mounting hole.

[0012] Preferably, the buffer guide plate assembly includes the buffer plate mounting shaft and a plurality of buffer guide plates installed side by side. The buffer plate mounting shaft includes a first buffer plate mounting shaft and a second buffer plate mounting shaft. One end of the buffer guide plate is fixedly connected to the first buffer plate mounting shaft. The bottom of the buffer guide plate is provided with a U-shaped opening groove that is adapted to the second buffer plate mounting shaft. The buffer guide plate rests on the second buffer plate mounting shaft at the U-shaped opening groove. The second buffer plate mounting shaft is located in front of and below the first buffer plate mounting shaft, and the second buffer plate mounting shaft is arranged parallel to the first buffer plate mounting shaft.

[0013] Preferably, the first buffer plate mounting shaft is connected to the unloading side baffle via a second limiting mounting block and a second limiting pin. The end of the first buffer plate mounting shaft passes through the second limiting mounting block, and the second limiting mounting block is fixed to the unloading side baffle by a second bolt and nut. The end of the first buffer plate mounting shaft is equipped with a second limiting pin to prevent the first buffer plate mounting shaft from coming off.

[0014] The second buffer plate mounting shaft is connected to the unloading side baffle via a third limiting mounting block and a third limiting pin. The end of the second buffer plate mounting shaft passes through the third limiting mounting block, which is fixed to the unloading side baffle by a third bolt and nut. The end of the second buffer plate mounting shaft is equipped with the third limiting pin to prevent the second buffer plate mounting shaft from coming off.

[0015] Preferably, the unloading side baffle has a first adjusting elongated hole for the first buffer plate mounting shaft to pass through and slide, and a second adjusting elongated hole for the second buffer plate mounting shaft to pass through and slide. The first adjusting elongated hole and the second adjusting elongated hole are parallel to each other above and behind the baffle.

[0016] The first adjusting elongated hole has rows of third upper bolt mounting holes and third lower bolt mounting holes on its upper and lower sides, respectively.

[0017] The second limiting mounting block has a first buffer plate mounting shaft mounting hole, and fourth upper bolt mounting holes and fourth lower bolt mounting holes located on the upper and lower sides of the first buffer plate mounting shaft mounting hole. The first buffer plate mounting shaft is for the first buffer plate mounting shaft to pass through. The fourth upper bolt mounting hole corresponds to the third upper bolt mounting hole, and the fourth lower bolt mounting hole corresponds to the third lower bolt mounting hole. The second bolt nut is installed at the third upper bolt mounting hole, the fourth upper bolt mounting hole, the third lower bolt mounting hole, and the fourth lower bolt mounting hole.

[0018] The end of the first buffer plate mounting shaft is provided with a second limiting pin mounting hole for mounting the second limiting pin. The second limiting pin prevents the first buffer plate mounting shaft from coming out of the first buffer plate mounting shaft mounting hole.

[0019] The second adjusting elongated hole has rows of fifth upper bolt mounting holes and fifth lower bolt mounting holes on its upper and lower sides, respectively.

[0020] The fifth upper bolt mounting hole and the third lower bolt mounting hole are located on the same straight line.

[0021] The third limiting mounting block has a second buffer plate mounting shaft mounting hole, a sixth upper bolt mounting hole and a sixth lower bolt mounting hole located on the upper and lower sides of the second buffer plate mounting shaft mounting hole. The second buffer plate mounting shaft is for the second buffer plate mounting shaft to pass through. The sixth upper bolt mounting hole corresponds to the fifth upper bolt mounting hole, and the sixth lower bolt mounting hole corresponds to the fifth lower bolt mounting hole. The third bolt nut is installed at the fifth upper bolt mounting hole and the sixth upper bolt mounting hole, and at the fifth lower bolt mounting hole and the sixth lower bolt mounting hole.

[0022] The end of the second buffer plate mounting shaft is provided with a third limiting pin mounting hole for mounting the third limiting pin. The third limiting pin prevents the second buffer plate mounting shaft from coming out of the second buffer plate mounting shaft mounting hole.

[0023] Preferably, the first bolt, the second bolt, and the third bolt are semi-circular head square neck bolts.

[0024] After adopting the above technical solution, the beneficial effects of this utility model are:

[0025] This utility model discloses a material unloading buffer device for an underground transfer machine, comprising two oppositely arranged unloading side baffles, a buffer curtain assembly, and a buffer guide plate assembly. The two unloading side baffles are fixedly connected to the transfer machine head. The buffer curtain assembly and the buffer guide plate assembly are positioned between the two unloading side baffles, with the buffer curtain assembly located above the buffer guide plate assembly. The buffer curtain assembly includes a curtain shaft, and the buffer guide plate assembly includes a buffer plate mounting shaft. Both ends of the curtain shaft are fixedly connected to the unloading side baffles and are adjustable in position. Both ends of the buffer plate mounting shaft are fixedly connected to the unloading side baffles and are adjustable in position. By adjusting the forward and backward movement of the buffer curtain assembly and the buffer guide plate assembly, the coal flow velocity and coal quantity can be effectively controlled, thereby improving the coal dropping effect, preventing coal block jamming, and adapting to changes in geological conditions.

[0026] Coal falling from the head of the transfer machine is first blocked by the buffer curtain assembly, then guided and buffered by the buffer guide plate assembly, before falling onto the belt conveyor. This greatly reduces the impact of the coal on the belt conveyor and avoids damage to the belt due to excessive impact. Furthermore, the buffer curtain assembly prevents coal from flying out of the belt conveyor and causing coal leakage.

[0027] In summary, the unloading buffer device for underground transfer machines of this utility model can not only prevent coal leakage, but also reduce the impact of coal on the conveyor belt. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This is a schematic diagram of the structure of the unloading buffer device for the underground transfer machine installed on the head of the transfer machine according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the unloading buffer device for the underground transfer machine according to an embodiment of the present invention;

[0031] Figure 3 Figure 2 A schematic diagram of the side view structure;

[0032] Figure 4 This is a schematic diagram of the unloading buffer device for an underground transfer machine according to an embodiment of the present invention, with one unloading side baffle omitted;

[0033] In the diagram: 1. Left unloading side baffle; 101. Adjusting oblique elongated hole; 102. First upper bolt mounting hole; 103. First lower bolt mounting hole; 104. First adjusting elongated hole; 105. Second adjusting elongated hole; 106. Third upper bolt mounting hole; 107. Third lower bolt mounting hole; 108. Fifth upper bolt mounting hole; 109. Fifth lower bolt mounting hole; 2. Right unloading side baffle; 3. Buffer curtain assembly; 301. Curtain shaft; 3011. First limit pin mounting hole; 302. Chain; 303. First limit mounting block; 3031. Curtain shaft Mounting hole; 304, First bolt and nut; 4, Buffer guide plate assembly; 400, Buffer guide plate; 401, First buffer plate mounting shaft; 4011, Second limit pin mounting hole; 402, Second buffer plate mounting shaft; 4021, Third limit pin mounting hole; 4001, U-shaped opening groove; 403, Second limit mounting block; 4031, First buffer plate mounting shaft mounting hole; 404, Second bolt and nut; 405, Third limit mounting block; 4051, Second buffer plate mounting shaft mounting hole; 406, Third bolt and nut; Z, Transfer machine head. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] like Figures 1 to 4As shown in the diagram, the coal transport direction of the transfer machine head Z is along the S direction. The underground transfer machine uses a discharge buffer device, which includes two oppositely arranged discharge side baffles, a buffer curtain assembly 3, and a buffer guide plate assembly 4. The two discharge side baffles are a left discharge side baffle 1 and a right discharge side baffle 2, and the two discharge side baffles are fixedly connected to the transfer machine head Z by bolts and nuts.

[0038] The buffer curtain assembly 3 and the buffer guide plate assembly 4 are disposed between the left unloading side baffle 1 and the right unloading side baffle 2, with the buffer curtain assembly 3 located above the buffer guide plate assembly 4.

[0039] The buffer curtain assembly 3 includes a curtain shaft 301, and the buffer guide plate assembly 4 includes a buffer plate mounting shaft. The two ends of the curtain shaft 301 are fixedly connected to the left unloading side baffle 1 and the right unloading side baffle 2 respectively and their positions are adjustable. The two ends of the buffer plate mounting shaft are fixedly connected to the left unloading side baffle 1 and the right unloading side baffle 2 respectively and their positions are adjustable.

[0040] When the coal flow is fast, the buffer curtain assembly 3 and the buffer guide plate assembly 4 are moved forward to a suitable position and locked in place with bolts and nuts. When the coal flow is slow, the buffer curtain assembly 3 and the buffer guide plate assembly 4 are moved backward to a suitable position and fixed in place. The forward and backward movement of the buffer curtain assembly 3 and the buffer guide plate assembly 4 effectively controls the coal flow speed and coal quantity, thereby improving the coal dropping effect and preventing coal blocks from getting stuck.

[0041] In some embodiments, the buffer curtain assembly 3 includes a plurality of chains 302 and a curtain shaft 301, with the chains 302 welded and fixed in rows onto the curtain shaft 301. The chains 302 are not only sturdy and impact-resistant but also inexpensive. Of course, the chains can also be replaced with steel wire ropes or other flexible materials.

[0042] In some embodiments, such as Figure 2 As shown, each end of the curtain shaft 301 is connected to the unloading side baffle via a first limiting mounting block 303 and a first limiting pin. The following explanation uses the installation of the left end of the curtain shaft 301 with the left unloading side baffle 1 as an example.

[0043] The left end of the curtain shaft 301 passes through the first limiting mounting block 303. The first limiting mounting block 303 is fixed to the left unloading side baffle 1 by the first bolt and nut 304. The left end of the curtain shaft 301 is equipped with a first limiting pin to prevent the curtain shaft 301 from falling out.

[0044] The unloading side baffle is provided with an adjusting inclined hole 101 through which the baffle shaft 301 passes and slides. The upper and lower sides of the adjusting inclined hole 101 are respectively provided with a row of first upper bolt mounting holes 102 and first lower bolt mounting holes 103.

[0045] The first limiting mounting block 303 has a curtain shaft mounting hole 3031, and second upper bolt mounting holes and second lower bolt mounting holes located on the upper and lower sides of the curtain shaft mounting hole 3031. The curtain shaft mounting hole 3031 allows the curtain shaft 301 to pass through. The second upper bolt mounting hole corresponds to the first upper bolt mounting hole 102, and the second lower bolt mounting hole corresponds to the first lower bolt mounting hole 103. The first bolt nut 304 is installed at the first upper bolt mounting hole 102 and the second upper bolt mounting hole, and at the first lower bolt mounting hole 103 and the second lower bolt mounting hole.

[0046] The end of the curtain shaft 301 is provided with a first limit pin mounting hole 3011 for installing a first limit pin, and the first limit pin prevents the curtain shaft 301 from coming out of the curtain shaft mounting hole 3031.

[0047] The installation structure of the right end of the curtain shaft 301 and the right unloading side baffle 2 is the same as the installation structure of the left end of the curtain shaft 301 and the left unloading side baffle 1 described above, and will not be repeated here.

[0048] like Figures 2 to 4 As shown, the buffer guide plate assembly 4 includes a buffer plate mounting shaft and multiple buffer guide plates 400 mounted side by side. The buffer plate mounting shaft includes a first buffer plate mounting shaft 401 and a second buffer plate mounting shaft 402. One end of the buffer guide plate 400 is fixedly connected to the first buffer plate mounting shaft 401. The bottom of the buffer guide plate 400 is provided with a U-shaped opening groove 4001 that is adapted to the second buffer plate mounting shaft 402. The buffer guide plate 400 rests on the second buffer plate mounting shaft 402 at the U-shaped opening groove 4001. The second buffer plate mounting shaft 402 is located in front of and below the first buffer plate mounting shaft 401, and the second buffer plate mounting shaft 402 is arranged parallel to the first buffer plate mounting shaft 401.

[0049] The first buffer plate mounting shaft 401 is connected to the unloading side baffle via the second limiting mounting block 403 and the second limiting pin. The end of the first buffer plate mounting shaft 401 passes through the second limiting mounting block 403. The second limiting mounting block 403 is fixed to the unloading side baffle by the second bolt and nut 404. The end of the first buffer plate mounting shaft 401 is equipped with a second limiting pin to prevent the first buffer plate mounting shaft 401 from coming off.

[0050] The second buffer plate mounting shaft 402 is connected to the unloading side baffle via the third limiting mounting block 405 and the third limiting pin. The end of the second buffer plate mounting shaft 402 passes through the third limiting mounting block 405. The third limiting mounting block 405 is fixed to the unloading side baffle by the third bolt and nut 406. The end of the second buffer plate mounting shaft 402 is equipped with a third limiting pin to prevent the second buffer plate mounting shaft 402 from coming off.

[0051] The unloading side baffle has a first adjusting elongated hole 104 for the first buffer plate mounting shaft 401 to pass through and slide, and a second adjusting elongated hole 105 for the second buffer plate mounting shaft 402 to pass through and slide. The first adjusting elongated hole 104 and the second adjusting elongated hole 105 are located above and behind the baffle and are parallel to each other.

[0052] The first adjusting elongated hole 104 has rows of third upper bolt mounting holes 106 and third lower bolt mounting holes 107 on its upper and lower sides, respectively.

[0053] The second limiting mounting block 403 has a first buffer plate mounting shaft mounting hole 4031, and fourth upper bolt mounting holes and fourth lower bolt mounting holes located on the upper and lower sides of the first buffer plate mounting shaft mounting hole 4031. The first buffer plate mounting shaft 4031 allows the first buffer plate mounting shaft 401 to pass through. The fourth upper bolt mounting hole corresponds to the third upper bolt mounting hole 106, and the fourth lower bolt mounting hole corresponds to the third lower bolt mounting hole 107. The second bolt nut 404 is installed at the third upper bolt mounting hole 106 and the fourth upper bolt mounting hole, and at the third lower bolt mounting hole 107 and the fourth lower bolt mounting hole.

[0054] The end of the first buffer plate mounting shaft 401 is provided with a second limit pin mounting hole 4011 for mounting a second limit pin. The second limit pin prevents the first buffer plate mounting shaft 401 from coming out of the first buffer plate mounting shaft mounting hole 4031.

[0055] The second adjusting elongated hole 105 has a row of fifth upper bolt mounting holes 108 and fifth lower bolt mounting holes 109 on its upper and lower sides, respectively.

[0056] The fifth upper bolt mounting hole 108 and the third lower bolt mounting hole 107 are located on the same straight line.

[0057] The third limiting mounting block 405 has a second buffer plate mounting shaft mounting hole 4051, and a sixth upper bolt mounting hole and a sixth lower bolt mounting hole located on the upper and lower sides of the second buffer plate mounting shaft mounting hole 4051. The second buffer plate mounting shaft mounting hole 4051 allows the second buffer plate mounting shaft 402 to pass through. The sixth upper bolt mounting hole corresponds to the fifth upper bolt mounting hole 108, and the sixth lower bolt mounting hole corresponds to the fifth lower bolt mounting hole 109. The third bolt nut 406 is installed at the fifth upper bolt mounting hole 108 and the sixth upper bolt mounting hole, and at the fifth lower bolt mounting hole 109 and the sixth lower bolt mounting hole.

[0058] The end of the second buffer plate mounting shaft 402 is provided with a third limit pin mounting hole 4021 for mounting a third limit pin. The third limit pin prevents the second buffer plate mounting shaft 402 from coming out of the second buffer plate mounting shaft mounting hole 4051.

[0059] The first, second, and third bolts are semi-circular head square neck bolts.

[0060] Coal falling from point Z at the head of the transfer machine is first blocked by the buffer curtain assembly 3, then guided and buffered by the buffer guide plate assembly 4, before falling onto the conveyor belt. This greatly reduces the impact of the coal on the conveyor belt and avoids damage to the belt due to excessive impact. Furthermore, the buffer curtain assembly 3 prevents coal from flying out of the conveyor belt and causing coal leakage.

[0061] In summary, the unloading buffer device for underground transfer machines of this utility model can not only prevent coal leakage, but also reduce the impact of coal on the conveyor belt.

[0062] 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 discharge buffer device for an underground transfer station, characterized by The device includes two oppositely arranged unloading side baffles, a buffer curtain assembly, and a buffer guide plate assembly. The two unloading side baffles are fixedly connected to the head of the transfer machine. The buffer curtain assembly and the buffer guide plate assembly are disposed between the two unloading side baffles, with the buffer curtain assembly located above the buffer guide plate assembly. The buffer curtain assembly includes a curtain shaft, and the buffer guide plate assembly includes a buffer plate mounting shaft. Both ends of the curtain shaft are fixedly connected to the unloading side baffle and their positions are adjustable. Both ends of the buffer plate mounting shaft are fixedly connected to the unloading side baffle and their positions are adjustable.

2. A tripper unloading buffer for an underground tripper as claimed in claim 1, characterized in that The buffer curtain assembly includes multiple chains and the curtain shaft, with the multiple chains fixed in a row on the curtain shaft.

3. A tripper unloading buffer for an underground tripper as claimed in claim 2, characterised in that, The curtain shaft is installed and connected to the unloading side baffle via a first limiting mounting block and a first limiting pin. The end of the curtain shaft passes through the first limiting mounting block, which is fixed to the unloading side baffle by a first bolt and nut. The end of the curtain shaft is equipped with a first limiting pin to prevent the curtain shaft from coming off.

4. A tripper unloading buffer for an underground tripper as claimed in claim 3, characterised in that, The unloading side baffle is provided with an adjusting oblique hole for the curtain shaft to pass through and slide. The upper and lower sides of the adjusting oblique hole are respectively provided with a row of first upper bolt mounting holes and a first lower bolt mounting hole. The first limiting mounting block has a curtain shaft mounting hole, a second upper bolt mounting hole and a second lower bolt mounting hole located on the upper and lower sides of the curtain shaft mounting hole. The curtain shaft mounting hole allows the curtain shaft to pass through. The second upper bolt mounting hole corresponds to the first upper bolt mounting hole, and the second lower bolt mounting hole corresponds to the first lower bolt mounting hole. The first bolt nut is installed at the first upper bolt mounting hole and the second upper bolt mounting hole, and at the first lower bolt mounting hole and the second lower bolt mounting hole. The end of the curtain shaft is provided with a first limiting pin mounting hole for installing the first limiting pin, and the first limiting pin prevents the curtain shaft from coming out of the curtain shaft mounting hole.

5. A tripper unloading buffer for an underground tripper as claimed in claim 4, characterised in that, The buffer guide plate assembly includes the buffer plate mounting shaft and a plurality of buffer guide plates installed side by side. The buffer plate mounting shaft includes a first buffer plate mounting shaft and a second buffer plate mounting shaft. One end of the buffer guide plate is fixedly connected to the first buffer plate mounting shaft. The bottom of the buffer guide plate is provided with a U-shaped opening groove that is adapted to the second buffer plate mounting shaft. The buffer guide plate rests on the second buffer plate mounting shaft at the U-shaped opening groove. The second buffer plate mounting shaft is located in front of and below the first buffer plate mounting shaft, and the second buffer plate mounting shaft is arranged parallel to the first buffer plate mounting shaft.

6. The unloading buffer device for an underground transfer machine as described in claim 5, characterized in that, The first buffer plate mounting shaft is connected to the unloading side baffle via a second limiting mounting block and a second limiting pin. The end of the first buffer plate mounting shaft passes through the second limiting mounting block, and the second limiting mounting block is fixed to the unloading side baffle by a second bolt and nut. The end of the first buffer plate mounting shaft is equipped with a second limiting pin to prevent the first buffer plate mounting shaft from coming off. The second buffer plate mounting shaft is connected to the unloading side baffle via a third limiting mounting block and a third limiting pin. The end of the second buffer plate mounting shaft passes through the third limiting mounting block, which is fixed to the unloading side baffle by a third bolt and nut. The end of the second buffer plate mounting shaft is equipped with the third limiting pin to prevent the second buffer plate mounting shaft from coming off.

7. A tripper unloading buffer for an underground tripper as claimed in claim 6, characterised in that, The unloading side baffle is provided with a first adjusting elongated hole for the first buffer plate mounting shaft to pass through and slide, and a second adjusting elongated hole for the second buffer plate mounting shaft to pass through and slide. The first adjusting elongated hole and the second adjusting elongated hole are parallel to each other above and behind. The first adjusting elongated hole has rows of third upper bolt mounting holes and third lower bolt mounting holes on its upper and lower sides, respectively. The second limiting mounting block has a first buffer plate mounting shaft mounting hole, and fourth upper bolt mounting holes and fourth lower bolt mounting holes located on the upper and lower sides of the first buffer plate mounting shaft mounting hole. The first buffer plate mounting shaft is for the first buffer plate mounting shaft to pass through. The fourth upper bolt mounting hole corresponds to the third upper bolt mounting hole, and the fourth lower bolt mounting hole corresponds to the third lower bolt mounting hole. The second bolt nut is installed at the third upper bolt mounting hole, the fourth upper bolt mounting hole, the third lower bolt mounting hole, and the fourth lower bolt mounting hole. The end of the first buffer plate mounting shaft is provided with a second limiting pin mounting hole for mounting the second limiting pin. The second limiting pin prevents the first buffer plate mounting shaft from coming out of the first buffer plate mounting shaft mounting hole. The second adjusting elongated hole has rows of fifth upper bolt mounting holes and fifth lower bolt mounting holes on its upper and lower sides, respectively. The fifth upper bolt mounting hole and the third lower bolt mounting hole are located on the same straight line. The third limiting mounting block has a second buffer plate mounting shaft mounting hole, a sixth upper bolt mounting hole and a sixth lower bolt mounting hole located on the upper and lower sides of the second buffer plate mounting shaft mounting hole. The second buffer plate mounting shaft is for the second buffer plate mounting shaft to pass through. The sixth upper bolt mounting hole corresponds to the fifth upper bolt mounting hole, and the sixth lower bolt mounting hole corresponds to the fifth lower bolt mounting hole. The third bolt nut is installed at the fifth upper bolt mounting hole and the sixth upper bolt mounting hole, and at the fifth lower bolt mounting hole and the sixth lower bolt mounting hole. The end of the second buffer plate mounting shaft is provided with a third limiting pin mounting hole for mounting the third limiting pin. The third limiting pin prevents the second buffer plate mounting shaft from coming out of the second buffer plate mounting shaft mounting hole.

8. A tripper unloading buffer for an underground loader as claimed in claim 7, characterised in that, The first bolt, the second bolt, and the third bolt are semi-circular head square neck bolts.

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