Supporting type hydraulic support

Abstract

The utility model discloses a supporting type hydraulic support which comprises four supports which are arranged side by side and are respectively defined as a first outer support, a first inner support, a second inner support and a second outer support, and further comprises an inner support connecting mechanism and an outer support connecting mechanism. The inner frame connecting mechanism is connected with the first inner bracket and the second inner bracket; the outer frame connecting mechanism is connected with the first outer bracket and the second outer bracket; each support comprises a top beam, a base, a front lifting rod mechanism and a rear lifting rod mechanism, the top end of the front lifting rod mechanism is hinged to the top beam, the bottom end of the front lifting rod mechanism is hinged to the base, the top end of the rear lifting rod mechanism is hinged to the top beam, and the rear lifting rod mechanism is connected with the base. Therefore, the hydraulic support has a stable structure, the torsion resistance of the support is improved, the adaptability of the hydraulic support to roadways under complex conditions is integrally improved, and particularly, the width of the support can be adjusted according to actual requirements so as to adapt to the width change of the roadways.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic supports, in particular to a supported hydraulic support. Background Art

[0002] A hydraulic support is a structure used to control the mine pressure in a coal mining face. The mine pressure in the mining face acts on the hydraulic support in the form of external load. In the mechanical system of the interaction between the hydraulic support and the surrounding rock of the mining face, if the resultant force of each support member of the hydraulic support and the resultant force of the external load acting on the hydraulic support by the roof are exactly on the same straight line, then the hydraulic support is very suitable for the surrounding rock of this mining face.

[0003] In recent years, the comprehensive coal mining support in coal mines has developed rapidly. The requirements for the roadway support in coal mining faces are getting higher and higher. At the same time, the roadway is narrow and the transportation capacity is weak. It is required that the hydraulic support should be as light as possible while ensuring safety. Summary of the Utility Model

[0004] Aiming at the above deficiencies, the technical problem to be solved by the utility model is: to provide a supported hydraulic support with a stable structure, good torsion resistance, and capable of adjusting the width according to actual needs to adapt to the change of roadway width.

[0005] To solve the above technical problem, the technical solution of the utility model is:

[0006] A supported hydraulic support includes four supports arranged side by side. The four supports are respectively defined as the first outer support, the first inner support, the second inner support, and the second outer support according to their installation positions. It also includes an inner support connection mechanism, an outer support connection mechanism, and a moving mechanism; the inner support connection mechanism connects the first inner support and the second inner support; the outer support connection mechanism connects the first outer support and the second outer support; each support includes a top beam, a base, a front lifting rod mechanism, and a rear lifting rod mechanism. The top end of the front lifting rod mechanism is hinged to the top beam, the bottom end of the front lifting rod mechanism is hinged to the base, the top end of the rear lifting rod mechanism is hinged to the top beam, and the rear lifting rod mechanism is connected to the base; the moving mechanism includes a front stepping connection structure, a stepping oil cylinder, and a rear stepping connection structure. One end of the stepping oil cylinder is connected to the rear end of the front stepping connection structure, the front end of the front stepping connection structure is connected to the outer support connection mechanism, the other end of the stepping oil cylinder is connected to the rear stepping connection structure, and the rear stepping connection structure is connected to the inner support connection mechanism.

[0007] Preferably, the inner support connection mechanism includes a portal connecting plate. The portal connecting plate is arranged at the front ends of the first inner support and the second inner support, and the portal connecting plate is connected to the first inner support and the second inner support through fasteners.

[0008] Preferably, the inner frame connection mechanism further includes a rear connecting plate, which is arranged at the rear ends of the first inner support and the second inner support, and the rear connecting plate is connected to the first inner support and the second inner support through fasteners.

[0009] Preferably, the outer frame connection mechanism includes a front connecting component and a rear connecting component; the front connecting component is arranged at the front ends of the four supports, and the front connecting component includes a front connecting oil cylinder, and both ends of the front connecting oil cylinder are respectively connected to the first outer support and the second outer support; the rear connecting component is located in front of the rear lifting rod mechanism, and the rear connecting component includes a rear connecting oil cylinder, and both ends of the rear connecting oil cylinder are respectively connected to the first outer support and the second outer support.

[0010] Preferably, the front connecting component further includes a pushing frame, which is arranged between the first outer support and the second outer support, and two long strip adjusting through holes are arranged on the pushing frame, and both ends of the front connecting oil cylinder are respectively arranged in the two long strip adjusting through holes.

[0011] Preferably, the front lifting rod mechanism includes a front guiding rod and front lifting oil cylinders respectively arranged on both sides of the front guiding rod, and the top end and the bottom end of the front lifting mechanism are respectively connected by hinge joints through front pin shafts.

[0012] Preferably, the rear lifting rod mechanism includes a rear guiding rod and rear lifting oil cylinders respectively arranged on both sides of the rear guiding rod, the top end of the rear lifting mechanism is hinged to the top beam through a rear pin shaft, and the bottom end of the rear lifting mechanism is connected to the base through two connecting shafts.

[0013] Preferably, a moving mechanism is further included, and the moving mechanism includes a front stepping connecting plate, a stepping oil cylinder and a rear stepping connecting plate. One end of the stepping oil cylinder is connected to the rear end of the front stepping connecting plate, the front end of the front stepping connecting structure is connected to the pushing frame, and the rear stepping connecting structure is connected to the rear connecting plate.

[0014] Preferably, a rear gangue retaining plate is arranged on the rear side of each support.

[0015] Preferably, at least one connecting frame is arranged between the inner sides of the top beams of the first inner support and the second inner support.

[0016] After adopting the above technical solution, the beneficial effects of the present utility model are:

[0017] The supported hydraulic support of the present utility model includes four supports arranged side by side, which are respectively defined as the first outer support, the first inner support, the second inner support, and the second outer support, and further includes an inner support connection mechanism and an outer support connection mechanism; the inner support connection mechanism connects the first inner support and the second inner support; the outer support connection mechanism connects the first outer support and the second outer support; each support includes a roof beam, a base, a front lifting rod mechanism, and a rear lifting rod mechanism. The top end of the front lifting rod mechanism is hinged to the roof beam, the bottom end of the front lifting rod mechanism is hinged to the base, the top end of the rear lifting rod mechanism is hinged to the roof beam, and the rear lifting rod mechanism is connected to the base. The hydraulic support of the present utility model has a stable structure, improves the anti-torsion performance of the support, and is suitable for narrow roadway spaces; and the rear lifting rod mechanism can increase the rear height, shorten the length of the tail of the advanced support, and prevent the coal gangue from crushing the support, resulting in the inability to move the support, and overall improves the adaptability of the hydraulic support in complex roadway conditions, especially can adjust the width of the support according to actual needs to adapt to the change of roadway width. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figures 1 to 4 is a schematic structural view of the supported hydraulic support in the present utility model;

[0019] Figure 5 is a front view of the supported hydraulic support in the present utility model;

[0020] Figure 6 is a top view of the supported hydraulic support in the present utility model;

[0021] Figure 7 is a bottom view of the supported hydraulic support in the present utility model;

[0022] Figure 8 is a side view of the supported hydraulic support in the present utility model;

[0023] In the figure: 10 - the first outer support, 11 - the first inner support, 12 - the second inner support, 13 - the second outer support, 2 - the portal connecting plate, 3 - the outer support connection mechanism, 30 - the front connecting component, 300 - the front connecting oil cylinder, 301 - the pushing frame, 3010 - the long strip adjusting through hole, 31 - the rear connecting component, 40 - the front lifting rod mechanism, 400 - the front guiding rod, 401 - the front lifting oil cylinder, 402 - the front pin shaft, 41 - the rear lifting rod mechanism, 410 - the rear guiding rod, 411 - the rear lifting oil cylinder, 412 - the connecting shaft, 5 - the moving mechanism, 50 - the stepping oil cylinder, 51 - the front stepping connection structure, 52 - the rear stepping connection structure, 6 - the connecting frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] It should be noted that in the description of the present utility model, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0026] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] As Figures 1 to 8 Collectively shown, a supported hydraulic support includes four brackets arranged side by side. The four brackets are respectively defined as a first outer bracket 10, a first inner bracket 11, a second inner bracket 12, and a second outer bracket 13 according to their set positions. In a preferred solution, a rear gangue retaining plate is provided at the rear side of each bracket; the present utility model further includes an inner bracket connection mechanism, an outer bracket connection mechanism 3, and a moving mechanism 5.

[0028] As Figure 1 and Figure 8 Shown, the inner bracket connection mechanism connects the first inner bracket 11 and the second inner bracket 12; in this embodiment, the inner bracket connection mechanism includes a portal connecting plate 2. The portal connecting plate 2 is arranged at the front ends of the first inner bracket 11 and the second inner bracket 12, and the portal connecting plate 2 is connected to the first inner bracket 11 and the second inner bracket 12 through fasteners. At the same time, the inner bracket connection mechanism further includes a rear connecting plate which is arranged at the rear ends of the first inner bracket 11 and the second inner bracket 12, and the rear connecting plate is connected to the first inner bracket 11 and the second inner bracket 12 through fasteners. In a preferred solution, at least one connecting frame 6 is provided between the inner sides of the roof beams of the first inner bracket 11 and the second inner bracket 12, further improving the structural stability.

[0029] As Figures 1 to 5As shown together, the outer frame connection mechanism 3 connects the first outer support 10 and the second outer support 13; in this embodiment, the outer frame connection mechanism 3 includes a front connection assembly 30 and a rear connection assembly 31; the front connection assembly 30 is provided at the front end of the four-frame support, and the front connection assembly 30 includes a front connection oil cylinder 300, and both ends of the front connection oil cylinder 300 are respectively connected to the first outer support 10 and the second outer support 13; the rear connection assembly 31 is located in front of the rear lifting rod mechanism 41, and the rear connection assembly 31 includes a rear connection oil cylinder, and both ends of the rear connection oil cylinder are respectively connected to the first outer support 10 and the second outer support 13.

[0030] The front connection assembly 30 further includes a pushing frame 301, the pushing frame 301 is provided between the first outer support 10 and the second outer support 13, and two long strip adjusting through holes 3010 are provided on the pushing frame 301, and both ends of the front connection oil cylinder 300 are respectively arranged in the two long strip adjusting through holes 3010. The two long strip adjusting through holes 3010 provide guidance for the movement of the front connection oil cylinder 300, so that when the width of the present utility model is adjusted, the first outer support 10 and the second outer support 13 can reliably move to both sides.

[0031] As Figures 1 to 5 As shown together, each support includes a top beam, a base, a front lifting rod mechanism 40 and a rear lifting rod mechanism 41. The top end of the front lifting rod mechanism 40 is hinged to the top beam, the bottom end of the front lifting rod mechanism 40 is hinged to the base, the top end of the rear lifting rod mechanism 41 is hinged to the top beam, and the rear lifting rod mechanism 41 is connected to the base.

[0032] In this embodiment, the front lifting rod mechanism 40 includes a front guide rod 400 and front lifting oil cylinders 401 respectively arranged on both sides of the front guide rod 400. The top end and the bottom end of the front lifting mechanism are respectively hinged through a front pin shaft 402. The rear lifting rod mechanism 41 includes a rear guide rod 410 and rear lifting oil cylinders 411 respectively arranged on both sides of the rear guide rod 410. The top end of the rear lifting mechanism is hinged to the top beam through a rear pin shaft, and the bottom end of the rear lifting mechanism is connected to the base through two connecting shafts 412. The stable structure of each support is a lifting rod type structure. The rear lifting rod is fixed by two connecting shafts 412 at the bottom and cannot swing. The front lifting rod mechanism 40 is hinged through one pin shaft and can swing. The front lifting rod mechanism 40 realizes height lifting through the front lifting oil cylinders 401 on both sides, and the rear lifting rod mechanism 41 realizes height lifting through the rear lifting oil cylinders 411 on both sides.

[0033] As Figure 3 、 Figure 4 and Figure 6As shown, the mobile mechanism 5 includes a front stepping connection structure 51, a stepping oil cylinder 50, and a rear stepping connection structure 52. One end of the stepping oil cylinder 50 is connected to the rear end of the front stepping connection structure 51. The front end of the front stepping connection structure 51 is connected to the pushing frame 301. The other end of the stepping oil cylinder 50 is connected to the rear stepping connection structure 52, and the rear stepping connection structure 52 is connected to the rear connecting plate. When the stepping oil cylinder 50 acts, its front end pushes the front ends of the first outer support 10 and the second outer support 13 forward through the front stepping connection structure 51, and its rear end pulls the rear ends of the first inner support 11 and the second inner support 12 forward through the rear stepping connection structure 52, ultimately achieving the overall stepping movement.

[0034] As Figures 1 to 8 As commonly shown, the supported hydraulic support of the present invention has structural stability, improves the torsional resistance of the support, has a small front-to-rear distance, and is suitable for narrow roadway spaces. A gob shield structure is provided at the rear to prevent coal gangue from flowing into the roadway and protect the space for passing the machine; the rear lifting rod mechanism 41 at the rear increases the rear height, shortens the length of the tail of the advanced support, prevents the coal gangue from crushing the support and causing the inability to move the support, and at the same time improves the torsional resistance of the support; overall, it improves the adaptability of the hydraulic support in complex roadways; in particular, the present invention can adjust the width of the support according to actual needs to adapt to the change in the width of the roadway and can achieve roadway support under the geological conditions of narrow roadways.

[0035] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent improvement of a supported hydraulic support, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A supporting hydraulic support, comprising four supports arranged side by side, wherein the four supports are respectively defined as a first outer support, a first inner support, a second inner support and a second outer support according to the setting positions, characterized in that: It also includes an inner frame connecting mechanism, an outer frame connecting mechanism and a moving mechanism; The inner frame connection mechanism connects the first inner frame and the second inner frame; The outer frame connection mechanism connects the first outer frame and the second outer frame; Each of the brackets includes a top beam, a base, a front lifting rod mechanism and a rear lifting rod mechanism, the top end of the front lifting rod mechanism is hingedly connected to the top beam, the bottom end of the front lifting rod mechanism is hingedly connected to the base, the top end of the rear lifting rod mechanism is hingedly connected to the top beam, and the rear lifting rod mechanism is connected to the base.

2. The support type hydraulic support according to claim 1, characterized in that: The inner frame connection mechanism includes a door-shaped connection plate, which is arranged at the front ends of the first inner bracket and the second inner bracket, and the door-shaped connection plate is connected to the first inner bracket and the second inner bracket through fasteners.

3. The support type hydraulic support according to claim 2, characterized in that: The inner frame connection mechanism also includes a rear connection plate, which is arranged at the rear ends of the first inner bracket and the second inner bracket, and the rear connection plate is connected to the first inner bracket and the second inner bracket through fasteners.

4. The supporting hydraulic support according to claim 3, characterized in that: The external frame connection mechanism includes a front connection component and a rear connection component; The front connection assembly is arranged at the front end of the four brackets, and the front connection assembly includes a front connection cylinder, and the two ends of the front connection cylinder are respectively connected to the first outer bracket and the second outer bracket; The rear connection assembly is located in front of the rear lifting rod mechanism, and the rear connection assembly includes a rear connection oil cylinder, and two ends of the rear connection oil cylinder are respectively connected to the first outer bracket and the second outer bracket.

5. The support type hydraulic support according to claim 4, characterized in that: The front connection assembly also includes a push frame, which is arranged between the first outer bracket and the second outer bracket, and the push frame is provided with two long adjustment through holes, and the two ends of the front connection cylinder are respectively arranged in the two long adjustment through holes.

6. The support type hydraulic support according to claim 1, characterized in that: The front lifting rod mechanism comprises a front guide rod and front lifting oil cylinders respectively arranged on both sides of the front guide rod. The top end and the bottom end of the front lifting rod mechanism are respectively hingedly connected through a front pin shaft.

7. The support type hydraulic support according to claim 1, characterized in that: The rear lifting rod mechanism includes a rear guide rod and rear lifting cylinders arranged on both sides of the rear guide rod. The top end of the rear lifting rod mechanism is hingedly connected to the top beam through a rear pin shaft, and the bottom end of the rear lifting rod mechanism is connected to the base through two connecting shafts.

8. The support type hydraulic support according to claim 5, characterized in that: It also includes a moving mechanism, which includes a front stepping connecting plate, a stepping cylinder and a rear stepping connecting plate, one end of the stepping cylinder is connected to the rear end of the front stepping connecting plate, the front end of the front stepping connecting plate is connected to the pushing frame, and the rear stepping connecting plate is connected to the rear connecting plate.

9. The support type hydraulic support according to claim 1, characterized in that: A rear baffle plate is arranged on the rear side of each support.

10. The support type hydraulic support according to claim 1, characterized in that: At least one connecting frame is arranged between the inner side of the top beam of the first inner bracket and the inner side of the top beam of the second inner bracket.

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