Hydraulic double-telescopic support and using method thereof

Abstract

The invention belongs to the technical field of supporting devices, and discloses a hydraulic double-telescopic support and a using method thereof.The hydraulic double-telescopic support comprises a support body and a top adjusting part, the support body comprises a base, a carrying disc, a top beam, a shield beam, a face guard and a double-telescopic hydraulic cylinder, and the top adjusting part comprises an auxiliary cover plate, a spring and a control assembly; one end of the spring is fixedly connected with the auxiliary cover plate, the other end of the spring is fixed to the top of the top beam, the control assembly comprises a rotating shaft and a cam block, and the auxiliary cover plate is intermittently pushed when the rotating shaft drives the cam block to rotate. By utilizing the control assembly, the spring and the auxiliary cover plate, the auxiliary cover plate vibrates up and down at the top of the top beam by utilizing rotation of the control assembly and matching with the spring during supporting, and during top supporting treatment, a top bearing object is effectively and uniformly dispersed through vibration, so that bracket inclination caused by local heavy load is avoided; the actual supporting stability is greatly improved, and the using effect is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of support devices, and in particular relates to a hydraulic double telescopic bracket and a method for using the bracket. Background Art

[0002] The hydraulic double telescopic support is a support equipment widely used in fully mechanized mining working faces in underground coal mines. It is an advanced form of hydraulic support. Its core design is that it has a two-stage hydraulic cylinder (double telescopic structure), which can achieve a wider range of support height adjustment to adapt to changes in complex coal seam thickness.

[0003] The hydraulic double telescopic bracket in the existing technology usually adopts a double telescopic hydraulic cylinder column to support the top beam during use to achieve the support function. However, during the support process, it is affected by the asymmetric load on the top, and the actual force on the top beam is uneven, which makes the support process safe. The bracket is prone to tilt under local heavy loads, and the overall use effect is poor. Summary of the Invention

[0004] The object of the present invention is to provide a hydraulic double telescopic bracket and a method of using the same to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic double telescopic bracket and a method for using the same, comprising a bracket body and a top adjustment part, the bracket body comprising a base, a carrier, a top beam, a protective beam, a side guard plate and a double telescopic hydraulic cylinder, the top adjustment part comprising an auxiliary cover plate, a spring and a control assembly, one end of the spring being fixedly connected to the auxiliary cover plate, and the other end of the spring being fixed to the top of the top beam, the control assembly comprising a rotating shaft and a cam block, the rotating shaft driving the cam block to rotate while intermittently pushing the auxiliary cover plate, and the auxiliary cover plate being sleeved on the top of the top beam.

[0006] Preferably, the carrier plate is movably mounted on the top of the base, the top beam is arranged above the carrier plate, the shield beam is hinged between the carrier plate and the top beam, the guard plate is rotatably arranged at the end of the top beam, and the double telescopic hydraulic cylinder is fixed on the top of the carrier plate, and the double telescopic hydraulic cylinder controls the lifting and lowering of the top beam.

[0007] Preferably, a hydraulic push rod is provided inside the base, a connecting block is fixedly provided at the bottom of the carrier, and a movable end of the hydraulic push rod is fixedly connected to the connecting block to control the lateral position of the carrier.

[0008] Preferably, the control assembly further comprises a motor and a support block, the output shaft of the motor is fixedly connected to the rotating shaft, the cam block is fixedly sleeved on the outer surface of the rotating shaft, and the rotating shaft is rotatably sleeved in the support block.

[0009] Preferably, a cleaning component is provided on the top of the top beam, one end of the cleaning component passes through the top beam and extends above the carrier plate, and a cleaning port of the cleaning component faces the double telescopic hydraulic cylinder.

[0010] Preferably, the cleaning component includes a wind tube, blades, a guide tube and a side port, the wind tube is sleeved on the outside of the rotating shaft, the blades are fixedly sleeved on the outer surface of the rotating shaft, the blades are located inside the wind tube, one end of the guide tube is fixedly connected to the end of the wind tube, and the other end of the guide tube passes through the top beam, the side port is opened on the side of the guide tube, and the other end of the wind tube is provided with a suction port.

[0011] Preferably, a lubricating part is provided inside the top beam, and when the top of the lubricating part moves upward, it is squeezed against the rotating cam block. The control component repeatedly squeezes the lubricating part after it moves upward, so that the lubricating oil is squeezed out of the liquid outlet at the bottom of the lubricating part.

[0012] Preferably, the lubricating part includes a support frame, an elastic storage bag, an electric push rod, a conduit and a sealing cover, the elastic storage bag stores lubricating oil inside, and the bottom of the elastic storage bag is fixedly nested on the top of the support frame, the movable end of the electric push rod is fixedly connected to the support frame, the conduit is connected to the elastic storage bag, and the sealing cover is detachably installed at the bottom of the conduit.

[0013] Preferably, the lubricating member further comprises an elastic pad and a slit, wherein the elastic pad is fixedly sleeved inside the lower end of the conduit, and the slit is provided on the elastic pad, and the slit is elastically closed under normal pressure.

[0014] A method for using a hydraulic double telescopic bracket comprises the following steps: Step 1: When in use, the double telescopic hydraulic cylinders are activated and lift the top beam upward to achieve top support. At the same time, the control parts in the guard plate are activated to open the guard plate to achieve further support. Step 2: When the top is unevenly loaded, the control assembly is activated, the control assembly rotates and pushes the auxiliary cover plate back and forth with the elastic force, causing the auxiliary cover plate to vibrate back and forth, dispersing the load on the top and achieving uniform load handling. Step 3: When cleaning is required, keep the control assembly rotating to rotate the blades in the cleaning component and form an axial flow, so that the axial flow is blown out through the side openings in the cleaning component. Manually adjust the position and direction of the guide tube to complete cleaning in different directions. Step 4: When local lubrication is required, start the lubricating part so that the upper part of the lubricating part moves upward and reciprocates with the rotating control component. At the same time, open the bottom end of the lubricating part, and manually hold and adjust the position of the bottom end of the lubricating part. Under reciprocating compression, the lubricating oil is sprayed toward the designated area to complete the directional lubrication.

[0015] The beneficial effects of the present invention are as follows: (1) The present invention utilizes a control component, a spring and an auxiliary cover plate. When performing support, the rotation of the control component is used in conjunction with the spring to make the auxiliary cover plate vibrate up and down on the top of the top beam. When performing top support processing, the vibration effectively makes the top support evenly dispersed, avoiding the tilt of the bracket caused by local heavy load, greatly improving the actual support stability, and having a good use effect.

[0016] (2) The present invention further utilizes the control component in conjunction with the cleaning component provided at the end of the control component. During the process of starting the control component, the airflow in the cleaning component is generated synchronously. In conjunction with the guide tube at the bottom of the cleaning component, the guide tube made of a hose and the output airflow can be blown toward the designated area for cleaning, thereby greatly improving the actual cleaning effect.

[0017] (3) The present invention utilizes the lubricating parts provided in the top beam by reusing the control components. In actual use, the lubricating parts are controlled to move upward and come into conflict with the rotating control components, thereby completing the compression of the top of the lubricating parts under reciprocating motion. Combined with the elastic pad and the slit after the bottom of the lubricating parts are opened, and in conjunction with the conduit made of the hose, automatic lubrication can be directed toward the place where lubrication is required, thereby achieving full lubrication and anti-oxidation treatment after lubrication for the movable parts area in the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is an exploded schematic diagram of the auxiliary cover plate and top beam of the present invention; Figure 3 is a schematic cross-sectional view of the base and the carrier plate of the present invention; Figure 4 It is a partial cross-sectional schematic diagram of the control assembly and cleaning component of the present invention; Figure 5 It is a cross-sectional view of the upper part of the lubricating element of the present invention; Figure 6 It is a cross-sectional view of the lower part of the lubricating component of the present invention.

[0019] In the figure: 1. Base; 2. Carrying plate; 3. Top beam; 4. Protective beam; 5. Guard plate; 6. Double telescopic hydraulic cylinder; 7. Auxiliary cover plate; 8. Spring; 9. Control component; 91. Rotating shaft; 92. Cam block; 93. Motor; 10. Cleaning component; 101. Air cylinder; 102. Blades; 103. Guide tube; 104. Side port; 11. Lubricating part; 111. Support frame; 112. Elastic storage bag; 113. Electric push rod; 114. Conduit; 115. Sealing cover; 116. Elastic pad; 117. Slit; 12. Hydraulic push rod; 13. Connecting block. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 6 As shown, an embodiment of the present invention provides a hydraulic double telescopic bracket and a method of using the same, including a bracket body and a top adjustment part, the bracket body including a base 1, a carrier plate 2, a top beam 3, a protective beam 4, a side guard plate 5 and a double telescopic hydraulic cylinder 6, the top adjustment part including an auxiliary cover plate 7, a spring 8 and a control assembly 9, one end of the spring 8 is fixedly connected to the auxiliary cover plate 7, and the other end of the spring 8 is fixed to the top of the top beam 3, the control assembly 9 includes a rotating shaft 91 and a cam block 92, the rotating shaft 91 drives the cam block 92 to rotate and intermittently push the auxiliary cover plate 7, and the auxiliary cover plate 7 is sleeved on the top of the top beam 3.

[0022] First embodiment: When in use, as the double telescopic hydraulic cylinder 6 is started and lifts the top beam 3 upward to achieve top support, the control component in the guard plate 5 is started at the same time, so that the guard plate 5 is opened to achieve further support. When the top is unevenly stressed, the control component 9 is started, and the motor 93 in the control component 9 drives the rotating shaft 91 to rotate, thereby driving the cam block 92 to rotate. As the cam block 92 rotates and cooperates with the spring 8 to push the auxiliary cover plate 7 back and forth, the auxiliary cover plate 7 vibrates back and forth, so that the top dragged objects are dispersed and uniform load processing is completed. When cleaning is needed, the control component 9 is kept rotating, and the rotating shaft 91 drives the blades 102 in the cleaning component 10 to rotate, forming axial flow wind in the wind tube 101, so that the axial flow wind is input into the guide pipe 103 through the wind tube 101 and blown out through the side port 104. The position and direction of the guide pipe 103 are manually adjusted to complete cleaning in different directions.

[0023] First, by utilizing the control component 9, spring 8 and auxiliary cover plate 7, when performing support use, the rotation of the control component 9 is utilized, and the spring 8 is cooperated to make the auxiliary cover plate 7 vibrate up and down on the top of the top beam 3. When performing top support processing, the vibration effectively makes the top support evenly dispersed, avoiding the tilt of the bracket caused by local heavy load, greatly improving the actual support stability, and achieving good use effect.

[0024] In addition, by further utilizing the control component 9 and cooperating with the cleaning component 10 set at the end of the control component 9, the airflow in the cleaning component 10 is synchronously generated during the process of starting the control component 9. In conjunction with the guide tube 103 at the bottom of the cleaning component 10, the guide tube 103 made of a hose and the output airflow can be blown toward the designated area for cleaning, thereby greatly improving the actual cleaning effect.

[0025] Second embodiment: When local lubrication is required, the lubricating component 11 is started, so that the electric push rod 113 in the lubricating component 11 drives the support frame 111 to move upward, and drives the upper elastic storage bag 112 to move upward, and reciprocatingly interfere with the rotating control component 9. At the same time, the sealing cover 115 at the bottom end of the lubricating component 11 is opened, and the position of the bottom end of the lubricating component 11 is manually grasped and adjusted. Under reciprocating compression, the lubricating oil is compressed and squeezed into the conduit 114 through the elastic storage bag 112, and the slit 117 in the elastic pad 116 is squeezed open, so that the lubricating oil is squeezed out through the slit 117 and sprayed toward the designated area to complete directional lubrication.

[0026] First, by reusing the control component 9 and utilizing the lubricating part 11 provided in the top beam 3, during actual use, the lubricating part 11 is controlled to move upward and interfere with the rotating control component 9 to complete the compression of the top of the lubricating part 11 under reciprocating motion. Combined with the elastic pad 116 and the slit 117 after the bottom of the lubricating part 11 is opened, and the conduit 114 made of a hose, automatic lubrication can be directed toward the place where lubrication is required, and sufficient lubrication and anti-oxidation treatment after lubrication can be achieved for the movable parts area in the bracket.

[0027] Among them, the carrier plate 2 is movably installed on the top of the base 1, the top beam 3 is arranged above the carrier plate 2, the protective beam 4 is hinged between the carrier plate 2 and the top beam 3, the guard plate 5 is rotatably set at the end of the top beam 3, and the double telescopic hydraulic cylinder 6 is fixed on the top of the carrier plate 2, and the double telescopic hydraulic cylinder 6 controls the lifting and lowering of the top beam 3.

[0028] The support body is composed of a base 1, a carrier plate 2, a top beam 3, a shield beam 4, a side guard plate 5 and a double telescopic hydraulic cylinder 6, which performs the extrusion support function.

[0029] A hydraulic push rod 12 is provided inside the base 1 , a connecting block 13 is fixedly provided at the bottom of the carrier 2 , and a movable end of the hydraulic push rod 12 is fixedly connected to the connecting block 13 to control the lateral position of the carrier 2 .

[0030] The position of the carrier plate 2 is controlled by the hydraulic push rod 12 to further achieve position adjustment.

[0031] The control assembly 9 further includes a motor 93 and a support block. The output shaft of the motor 93 is fixedly connected to the rotating shaft 91. The cam block 92 is fixedly sleeved on the outer surface of the rotating shaft 91. The rotating shaft 91 is rotatably sleeved in the support block.

[0032] The control component 9 realizes vibration, air supply and compression processing by rotating, thereby realizing multifunctional processing.

[0033] Among them, a cleaning component 10 is provided at the top of the top beam 3, one end of the cleaning component 10 passes through the top beam 3 and extends to the top of the carrier 2, the cleaning port of the cleaning component 10 faces the double telescopic hydraulic cylinder 6, the cleaning component 10 includes a wind tube 101, blades 102, a guide pipe 103 and a side port 104, the wind tube 101 is sleeved on the outside of the rotating shaft 91, the blades 102 are fixedly sleeved on the outer surface of the rotating shaft 91, the blades 102 are located inside the wind tube 101, one end of the guide pipe 103 is fixedly connected to the end of the wind tube 101, and the other end of the guide pipe 103 passes through the top beam 3, the side port 104 is opened on the side of the guide pipe 103, and the other end of the wind tube 101 is provided with a suction port.

[0034] The cleaning component 10 guides the airflow by generating a handle to achieve directional wind cleaning.

[0035] Among them, a lubricating part 11 is provided inside the top beam 3. When the top of the lubricating part 11 moves upward, it is squeezed against the rotating cam block 92. The control component 9 repeatedly squeezes the lubricating part 11 after it moves upward, so that the lubricating oil is squeezed out of the liquid outlet at the bottom of the lubricating part 11. The lubricating part 11 includes a support frame 111, an elastic storage bag 112, an electric push rod 113, a conduit 114 and a sealing cover 115. Lubricating oil is stored inside the elastic storage bag 112, and the bottom of the elastic storage bag 112 is fixedly nested in the top of the support frame 111. The movable end of the electric push rod 113 is fixedly connected to the support frame 111, the conduit 114 is connected to the elastic storage bag 112, and the sealing cover 115 is detachably installed at the bottom of the conduit 114. The lubricating part 11 also includes an elastic pad 116 and a slit 117. The elastic pad 116 is fixedly sleeved on the inside of the lower end of the conduit 114, and the slit 117 is opened on the elastic pad 116. The slit 117 is elastically closed under normal pressure.

[0036] The lubricating part 11 cooperates with the control component 9 to realize the controlled extrusion of the lubricating oil, and combined with the specified direction, realizes directional lubrication, and the slit 117 is elastically sealed and automatically closed under no pressure to avoid leakage, and only elastically opens under pressure to complete the lubrication process.

[0037] A method for using a hydraulic double telescopic bracket comprises the following steps: Step 1: When in use, the double telescopic hydraulic cylinders 6 are activated and lift the top beam 3 upward to achieve top support, and at the same time the control components in the guard plate 5 are activated to open the guard plate 5 to achieve further support; Step 2: When the top is unevenly loaded, the control assembly 9 is activated, and the control assembly 9 rotates and cooperates with the spring 8 to push the auxiliary cover plate 7 back and forth, causing the auxiliary cover plate 7 to vibrate back and forth, so that the load on the top is dispersed and the load is evenly loaded; Step 3: When cleaning is required, the control assembly 9 is kept rotating to rotate the blades 102 in the cleaning component 10 and form an axial flow, so that the axial flow is blown out through the side port 104 in the cleaning portion 10. The position and direction of the guide tube 103 are manually adjusted to complete cleaning in different directions; Step 4: When local lubrication is required, start the lubricating part 11 so that the upper part of the lubricating part 11 moves upward and reciprocates with the rotating control component 9. At the same time, open the bottom end of the lubricating part 11, and manually hold and adjust the position of the bottom end of the lubricating part 11. Under reciprocating compression, the lubricating oil is sprayed toward the designated area to complete the directional lubrication.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic double telescopic support, comprising a support body and a top adjustment portion, wherein the support body comprises a base (1), a carrier plate (2), a top beam (3), a shield beam (4), a side guard plate (5) and a double telescopic hydraulic cylinder (6), characterized in that: The top adjustment portion comprises an auxiliary cover plate (7), a spring (8) and a control assembly (9), one end of the spring (8) is fixedly connected to the auxiliary cover plate (7), and the other end of the spring (8) is fixed to the top of the top beam (3), and the control assembly (9) comprises a rotating shaft (91) and a cam block (92), and the rotating shaft (91) drives the cam block (92) to intermittently push the auxiliary cover plate (7) when rotating, and the auxiliary cover plate (7) is sleeved on the top of the top beam (3).

2. The hydraulic double telescopic support according to claim 1, characterized in that: The carrier plate (2) is movably mounted on the top of the base (1); the top beam (3) is arranged above the carrier plate (2); the shield beam (4) is hinged between the carrier plate (2) and the top beam (3); the guard plate (5) is rotatably arranged at the end of the top beam (3); the double telescopic hydraulic cylinder (6) is fixed on the top of the carrier plate (2); and the double telescopic hydraulic cylinder (6) controls the lifting and lowering of the top beam (3).

3. The hydraulic double telescopic support according to claim 2, characterized in that: A hydraulic push rod (12) is provided inside the base (1), a connecting block (13) is fixedly provided at the bottom of the carrier (2), and a movable end of the hydraulic push rod (12) is fixedly connected to the connecting block (13) to control the lateral position of the carrier (2).

4. The hydraulic double telescopic support according to claim 3, characterized in that: The control assembly (9) further comprises a motor (93) and a support block, wherein the output shaft of the motor (93) is fixedly connected to the rotating shaft (91), the cam block (92) is fixedly sleeved on the outer surface of the rotating shaft (91), and the rotating shaft (91) is rotatably sleeved in the support block.

5. The hydraulic double telescopic support according to claim 4, characterized in that: A cleaning component (10) is provided on the top of the top beam (3), one end of the cleaning component (10) passes through the top beam (3) and extends above the carrier plate (2), and a cleaning port of the cleaning component (10) faces the double telescopic hydraulic cylinder (6).

6. The hydraulic double telescopic support according to claim 5, characterized in that: The cleaning component (10) comprises a wind tube (101), blades (102), a guide pipe (103) and a side port (104); the wind tube (101) is sleeved on the outside of the rotating shaft (91); the blades (102) are fixedly sleeved on the outer surface of the rotating shaft (91); the blades (102) are located inside the wind tube (101); one end of the guide pipe (103) is fixedly connected to the end of the wind tube (101), and the other end of the guide pipe (103) passes through the top beam (3); the side port (104) is opened on the side of the guide pipe (103); and the other end of the wind tube (101) is provided with a suction port.

7. The hydraulic double telescopic support according to claim 6, characterized in that: A lubricating member (11) is provided inside the top beam (3). When the top of the lubricating member (11) moves upward, it is squeezed by the rotating cam block (92). The control component (9) repeatedly squeezes the lubricating member (11) that has moved upward, so that lubricating oil is squeezed out of the liquid outlet at the bottom of the lubricating member (11).

8. The hydraulic double telescopic support according to claim 7, characterized in that: The lubricating component (11) includes a support frame (111), an elastic storage bag (112), an electric push rod (113), a conduit (114) and a sealing cover (115), wherein lubricating oil is stored inside the elastic storage bag (112), and the bottom of the elastic storage bag (112) is fixedly nested in the top of the support frame (111), the movable end of the electric push rod (113) is fixedly connected to the support frame (111), the conduit (114) is communicated with the elastic storage bag (112), and the sealing cover (115) is detachably mounted on the bottom of the conduit (114).

9. The hydraulic double telescopic support according to claim 8, characterized in that: The lubricating member (11) further comprises an elastic pad (116) and a slit (117), wherein the elastic pad (116) is fixedly sleeved inside the lower end of the conduit (114), and the slit (117) is opened on the elastic pad (116), and the slit (117) is elastically closed under normal pressure.

10. The method for using the hydraulic double telescopic support according to claim 9, characterized in that: The following steps are involved: Step 1: When in use, the double telescopic hydraulic cylinder (6) is activated and lifts the top beam (3) upward to achieve top support, and at the same time, the control member in the side guard plate (5) is activated to open the side guard plate (5) to achieve further support; Step 2: When the top is unevenly stressed, the control assembly (9) is activated, the control assembly (9) rotates and cooperates with the spring (8) to push the auxiliary cover plate (7) back and forth, causing the auxiliary cover plate (7) to vibrate back and forth, so that the top dragged objects are dispersed, completing the uniform load treatment; Step 3: When cleaning is required, the control assembly (9) is kept rotating to rotate the blades (102) in the cleaning component (10) and form an axial flow, so that the axial flow is blown out through the side opening (104) in the cleaning component (10), and the position and direction of the guide tube (103) are manually adjusted to complete cleaning in different directions; Step 4: When local lubrication is required, the lubricating member (11) is started so that the upper portion of the lubricating member (11) moves upward and reciprocates with the rotating control assembly (9). At the same time, the bottom end of the lubricating member (11) is opened, and the position of the bottom end of the lubricating member (11) is manually held and adjusted. Under reciprocating compression, the lubricating oil is sprayed toward the designated area to complete the directional lubrication.

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