Gob-side entry retaining end hydraulic support

Abstract

The utility model relates to the technical field of hydraulic supports, in particular to a gob-side entry retaining end hydraulic support which comprises a support, a plurality of hydraulic supporting rods are fixedly installed on one side of the support, and the same abutting plate and an anti-corrosion replacement mechanism are fixedly installed on one sides of the hydraulic supporting rods. The anti-corrosion replacement mechanism is used for carrying out anti-corrosion on the supporting surface of the hydraulic supporting rod and is convenient to replace; when the device is used, the abutting plate can be driven by the multiple hydraulic supporting rods to conduct abutting supporting, when the abutting plate is used, the abutting plate can be protected through the contact plate by making contact with the inner wall of a mine tunnel, and when the contact plate is gradually damaged due to corrosion, the contact plate can be replaced through the replacement assembly; therefore, the service life of the multiple hydraulic supporting rods and the abutting plate is prolonged, ventilation can be improved through the ventilation assembly when the contact plate is used, moisture is reduced, and the service life of the contact plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic supports, in particular to a hydraulic support for an end of a gob-side tunnel retaining tunnel. Background Art

[0002] In recent years, as my country's coal enterprises vigorously promote the technology of coal mining along the goaf with no coal pillars, the technology of coal mining along the goaf with coal mining is being widely promoted. The roof fall at the end of the beam along the goaf with coal mining is the main factor affecting the efficiency of comprehensive mining and the safety of workers. The problem is more serious especially for the mining of broken roof at the end of the tunnel, soft medium and thick coal seams and thick coal seams. Because the main broken roof in the tunnel can be supported by the side guard plate. The side guard plate is a commonly used device to improve the adaptability of the hydraulic support. Its function is to apply a supporting force to the coal wall by pressing the side guard against the coal wall to prevent the side guard from spalling.

[0003] As shown in the reference case "A hydraulic support auxiliary roof protection device at the end of a coal mine tunnel" announcement number "CN219299345U", the problem of hydraulic support rear roof support and broken roof protection during the current coal mine gob-side tunnel end support operation is solved, reducing the hidden danger of roof falling and greatly improving safety;

[0004] However, since hydraulic struts are usually used in mining environments, which usually have high humidity, the contact support surfaces of the hydraulic struts are very prone to rust and corrosion, which reduces the structural strength and durability of the contact surfaces and affects the service life of the hydraulic struts.

[0005] Therefore, a hydraulic support at the end of the gob-side tunnel retaining system is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a hydraulic support for the end of an empty tunnel in order to solve the above-mentioned problem, which improves the problem that the hydraulic support rods are usually used in a mining environment, and the mining environment usually has high humidity, which causes the contact support surface of the hydraulic support rods to be very easy to rust and corrode, resulting in reduced structural strength and durability of the contact surface, and affecting the service life of the hydraulic support rods.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a hydraulic support at the end of an empty tunnel, comprising: a support, a plurality of hydraulic support rods are fixedly installed on one side of the support, a same clamping plate is fixedly installed on one side of the plurality of hydraulic support rods, an anti-corrosion replacement mechanism is used to prevent corrosion on the supporting surface of the hydraulic support rod and facilitate replacement of the anti-corrosion replacement mechanism, wherein the anti-corrosion replacement mechanism comprises a contact plate arranged on one side of the clamping plate, a replacement component is arranged between the clamping plate and the contact plate, a ventilation component is arranged on one side of the contact plate, and when in use, the clamping plate can be driven by the plurality of hydraulic support rods to perform clamping support, and when the clamping plate is in use, the contact plate can be in contact with the inner wall of the mine tunnel to protect the clamping plate, and when the contact plate is corroded and gradually damaged, the contact plate can be replaced by the replacement component, thereby extending the service life of the plurality of hydraulic support rods and the clamping plates, and the ventilation component can be used to increase the ventilation and reduce moisture when the contact plate is in use, thereby extending the service life of the contact plate.

[0008] Preferably, the replacement component includes two movable grooves provided on one side of the clamping plate, two installation grooves provided on one side of the clamping plate, the two movable grooves are both located on one side of the two installation grooves, the movable groove is communicated with the installation groove, one side of the contact plate is slidably connected with the two installation grooves, a limit plate is slidably installed on one side of the movable groove, one side of the limit plate is located on one side of the movable groove, a hydraulic rod is fixedly installed inside the installation groove, and a push plate is fixedly installed on the output end of the hydraulic rod. When the contact plate is in use, the contact plate can be limited by the two limit plates, and when the contact plate needs to be replaced, the two limit plates can be moved out of the installation groove by moving the two limit plates inside the corresponding movable grooves. When the limit plate no longer blocks the installation groove, the contact plate can be moved to move the contact plate out of the installation groove and replace the contact plate, so that the hydraulic support rod and the clamping plate can be used again, thereby extending the service life of the hydraulic support rod and the clamping plate.

[0009] Preferably, the replacement component also includes a bidirectional screw rotatably installed on one side of the clamping plate, both ends of the bidirectional screw pass through two limit plates, and the bidirectional screw is threadedly connected to the two limit plates. The bidirectional screw can be rotated to make the bidirectional screw synchronously with the two limit plates to perform threaded movement, and it is very convenient to synchronously move the two limit plates out of the installation groove.

[0010] Preferably, a motor is fixedly mounted on one side of the clamping plate, and pulleys are fixedly mounted on the output end of the motor and the surface of the bidirectional screw. The two pulleys are connected by a belt transmission. When the bidirectional screw needs to be rotated, the motor can be started to synchronously rotate the pulley, and the pulley can synchronously drive the bidirectional screw to rotate through the belt, thereby conveniently driving the bidirectional screw to rotate.

[0011] Preferably, the ventilation assembly includes a plurality of ventilation grooves opened on the surface of the contact plate, and both ends of the ventilation grooves pass through the contact plate. When the contact plate is in use, the contact plate can be assisted in ventilation through the plurality of ventilation grooves, thereby reducing humidity and extending the service life of the contact plate.

[0012] Preferably, the ventilation assembly also includes a plurality of connection holes opened on one side of the ventilation slot, and one end of the plurality of connection holes extends to the top of the contact plate. When in use, the plurality of ventilation slots can be connected to the outside through the plurality of connection holes, thereby improving the use effect of the ventilation slots.

[0013] Preferably, two mounting plates are fixedly installed on the bottom of the contact plate, and the two mounting plates are slidably connected to the two mounting grooves respectively. One side of the two mounting plates is in contact with the push plate, and a plurality of contact wheels are rotatably installed on the bottom of the mounting plate. When the contact plate needs to be replaced and removed, the contact plate can be removed more easily by using the multiple contact wheels of the bottom mounting plate, making replacement of the contact plate more convenient.

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

[0015] 1. When in use, the abutment plate can be driven by multiple hydraulic struts to perform abutment support. When the abutment plate is in use, the contact plate can be in contact with the inner wall of the mine tunnel to protect the abutment plate. When the contact plate is corroded and gradually damaged, the contact plate can be replaced by a replacement component, thereby extending the service life of multiple hydraulic struts and the abutment plate. The ventilation component can be used to increase the ventilation of the contact plate when in use to reduce moisture and extend the service life of the contact plate;

[0016] 2. When the contact plate is in use, multiple ventilation slots can be used to assist ventilation of the contact plate, thereby reducing humidity and extending the service life of the contact plate. When in use, multiple ventilation slots can be used through multiple connection holes to increase the connection channels with the outside, so that the use effect of the ventilation slots is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the anti-corrosion replacement mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the replacement component structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the ventilation component of the utility model.

[0021] In the figure: 1. support; 11. hydraulic support rod; 2. clamping plate; 3. anti-corrosion replacement mechanism; 31. contact plate; 32. replacement assembly; 321. movable groove; 322. limit plate; 323. bidirectional screw; 324. mounting groove; 325. hydraulic rod; 326. push plate; 327. motor; 328. pulley; 33. ventilation assembly; 331. mounting plate; 332. contact wheel; 333. ventilation groove; 334. connecting hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] When implementing: Figure 1-4 As shown, a hydraulic support for the end of a tunnel along the gob, comprising: a support 1, a plurality of hydraulic support rods 11 are fixedly mounted on one side of the support 1, a same abutting plate 2 is fixedly mounted on one side of the plurality of hydraulic support rods 11, an anti-corrosion replacement mechanism 3, used for anti-corrosion of the supporting surface of the hydraulic support rods 11 and for facilitating replacement, wherein the anti-corrosion replacement mechanism 3 comprises a contact plate 31 arranged on one side of the abutting plate 2, a replacement component 32 is arranged between the abutting plate 2 and the contact plate 31, a ventilation component 33 is arranged on one side of the contact plate 31, When in use, the clamping plate 2 can be driven by multiple hydraulic support rods 11 to perform clamping support. When the clamping plate 2 is in use, it can contact the inner wall of the mine tunnel through the contact plate 31 to protect the clamping plate 2. When the contact plate 31 is corroded and gradually damaged, the contact plate 31 can be replaced by the replacement component 32, thereby extending the service life of the multiple hydraulic support rods 11 and the clamping plate 2. The ventilation component 33 can be used to increase the ventilation of the contact plate 31 when in use to reduce moisture, thereby extending the service life of the contact plate 31.

[0024] like Figure 2 and Figure 3As shown, the replacement component 32 includes two movable grooves 321 opened on one side of the clamping plate 2, two mounting grooves 324 are opened on one side of the clamping plate 2, the two movable grooves 321 are both located on one side of the two mounting grooves 324, the movable groove 321 is connected with the mounting groove 324, one side of the contact plate 31 is slidably connected with the two mounting grooves 324, one side of the movable groove 321 is slidably installed with a limit plate 322, one side of the limit plate 322 is located on one side of the movable groove 321, and the interior of the mounting groove 324 is fixedly installed with a hydraulic rod 32 5. A push plate 326 is fixedly installed at the output end of the hydraulic rod 325. When the contact plate 31 is in use, the contact plate 31 can be limited by the two limit plates 322. When the contact plate 31 needs to be replaced, the two limit plates 322 can be moved inside the corresponding movable grooves 321 so that the two limit plates 322 are moved out of the installation grooves 324. When the limit plates 322 no longer block the installation grooves 324, the contact plate 31 can be moved out of the installation grooves 324. 1 is replaced, so that the hydraulic support rod 11 and the clamping plate 2 can be used again, and the service life of the hydraulic support rod 11 and the clamping plate 2 is extended. The replacement component 32 also includes a bidirectional screw rod 323 rotatably installed on one side of the clamping plate 2. Both ends of the bidirectional screw rod 323 penetrate the two limit plates 322. The bidirectional screw rod 323 is threadedly connected with the two limit plates 322. The bidirectional screw rod 323 can be rotated to make the bidirectional screw rod 323 synchronously with the two limit plates 322 to synchronously move the two limit plates 322. It is very convenient to remove the mounting groove 324. A motor 327 is fixedly installed on one side of the clamping plate 2. A pulley 328 is fixedly installed on the output end of the motor 327 and the surface of the bidirectional screw 323. The two pulleys 328 are connected by a belt transmission. When the bidirectional screw 323 needs to be rotated, the motor 327 can be started to allow the motor 327 to synchronously rotate the pulley 328. The pulley 328 synchronously drives the bidirectional screw 323 to rotate through the belt, thereby conveniently driving the bidirectional screw 323 to rotate.

[0025] like Figure 2 and Figure 4As shown, the ventilation assembly 33 includes a plurality of ventilation slots 333 provided on the surface of the contact plate 31, both ends of the ventilation slots 333 penetrate the contact plate 31, when the contact plate 31 is in use, the plurality of ventilation slots 333 can be used to assist ventilation of the contact plate 31, thereby reducing humidity and extending the service life of the contact plate 31, the ventilation assembly 33 also includes a plurality of connection holes 334 provided on one side of the ventilation slots 333, one end of the plurality of connection holes 334 extends to the top of the contact plate 31, and the plurality of ventilation slots 333 can be used to assist ventilation of the contact plate 31. 4. Add a connection channel with the outside to make the use of the ventilation slot 333 better. Two mounting plates 331 are fixedly installed on the bottom of the contact plate 31. The two mounting plates 331 are slidably connected to the two mounting slots 324 respectively. One side of the two mounting plates 331 is in contact with the push plate 326. A plurality of contact wheels 332 are rotatably installed on the bottom of the mounting plate 331. When the contact plate 31 needs to be replaced and removed, the plurality of contact wheels 332 of the bottom mounting plate 331 can make it easier to remove the contact plate 31, making it more convenient to replace the contact plate 31.

[0026] When the contact plate 31 is in use, the two limit plates 322 can be used to limit the contact plate 31. When the contact plate 31 needs to be replaced, the two limit plates 322 can be moved in the corresponding movable grooves 321 so that the two limit plates 322 are moved out of the installation grooves 324. When the limit plates 322 no longer block the installation grooves 324, the contact plate 31 can be moved out of the installation grooves 324 to replace the contact plate 31, so that the hydraulic support rod 11 and the clamping plate 2 can be used again, thereby extending the service life of the hydraulic support rod 11 and the clamping plate 2. The two-way screw 323 can be rotated to synchronize the two limit plates 323 with the two limit plates 324. The positioning plate 322 performs threaded motion, and it is very convenient to simultaneously move the two limit plates 322 out of the installation groove 324. When the bidirectional screw 323 needs to be rotated, the motor 327 can be started to allow the motor 327 to synchronously rotate the pulley 328. The pulley 328 synchronously drives the bidirectional screw 323 to rotate through the belt, which can conveniently drive the bidirectional screw 323 to rotate. When the contact plate 31 is in use, the contact plate 31 can be assisted in ventilation through the multiple ventilation grooves 333, thereby reducing humidity and extending the service life of the contact plate 31. When in use, the multiple ventilation grooves 333 can increase the connection channels with the outside through the multiple connecting holes 334, so that the use effect of the ventilation grooves 333 is better.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydraulic support for the end of a gob-side tunnel retaining, characterized in that: include: A support (1), wherein a plurality of hydraulic support rods (11) are fixedly mounted on one side of the support (1), and a same abutment plate (2) is fixedly mounted on one side of the plurality of hydraulic support rods (11); An anti-corrosion replacement mechanism (3) for preventing corrosion on the supporting surface of the hydraulic support rod (11) and facilitating replacement thereof; The anti-corrosion replacement mechanism (3) comprises a contact plate (31) arranged on one side of the abutting plate (2), a replacement component (32) is arranged between the abutting plate (2) and the contact plate (31), and a ventilation component (33) is arranged on one side of the contact plate (31).

2. The hydraulic support for the end of a gob-side tunnel retaining according to claim 1, characterized in that: The replacement component (32) comprises two movable grooves (321) provided on one side of the clamping plate (2); two mounting grooves (324) are provided on one side of the clamping plate (2); the two movable grooves (321) are both located on one side of the two mounting grooves (324); the movable groove (321) is connected to the mounting grooves (324); one side of the contact plate (31) is slidably connected to the two mounting grooves (324); a limiting plate (322) is slidably installed on one side of the movable groove (321); one side of the limiting plate (322) is located on one side of the movable groove (321); a hydraulic rod (325) is fixedly installed inside the mounting groove (324); and a push plate (326) is fixedly installed at the output end of the hydraulic rod (325).

3. The hydraulic support for the end of a gob-side tunnel retaining structure according to claim 1, characterized in that: The replacement component (32) further comprises a bidirectional screw (323) rotatably mounted on one side of the abutting plate (2), both ends of the bidirectional screw (323) passing through the two limit plates (322), and the bidirectional screw (323) is threadedly connected to the two limit plates (322).

4. The hydraulic support for the end of a gob-side tunnel retaining according to claim 1, characterized in that: A motor (327) is fixedly mounted on one side of the abutting plate (2), and pulleys (328) are fixedly mounted on the output end of the motor (327) and the surface of the bidirectional screw rod (323), and the two pulleys (328) are connected via a belt transmission.

5. The hydraulic support for the end of a gob-side tunnel retaining according to claim 1 is characterized in that: The ventilation assembly (33) comprises a plurality of ventilation slots (333) formed on the surface of the contact plate (31), and both ends of the ventilation slots (333) penetrate the contact plate (31).

6. The hydraulic support for the end of a gob-side tunnel retaining structure according to claim 1, characterized in that: The ventilation assembly (33) further comprises a plurality of connection holes (334) formed on one side of the ventilation slot (333), and one end of each of the plurality of connection holes (334) extends to the top of the contact plate (31).

7. The hydraulic support for the end of a gob-side tunnel retaining structure according to claim 1, characterized in that: Two mounting plates (331) are fixedly mounted on the bottom of the contact plate (31), the two mounting plates (331) are slidably connected to the two mounting grooves (324) respectively, one side of the two mounting plates (331) is in contact with the push plate (326), and a plurality of contact wheels (332) are rotatably mounted on the bottom of the mounting plate (331).

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