Row support

Abstract

The utility model discloses a row support, including two row type support, telescopic forward propulsion piece, telescopic support component, lateral support plate and telescopic lateral propulsion piece, each row type support includes at least two top beams and at least two joist components, the top beams and the joist components are arranged crosswise, the top beams are arranged above the joist components, the top beams are arranged above the joist components, and the lateral support plate is arranged above the top beams. The lower portions of the left side and the right side of each row-type support are each provided with at least two telescopic supporting assemblies, the top beams and the joist assemblies of the two row-type supports are distributed at intervals, a telescopic forward-moving pushing piece is arranged between at least one set of two adjacent joist assemblies, and the left side and the right side of each joist assembly are each provided with a side supporting plate. The side supporting plates are connected with the joist assemblies through telescopic side pushing pieces, the telescopic side pushing pieces are arranged between at least one set of adjacent joists in the joist assemblies, and when the side supporting plates on the two sides of the row type support are supported on the side wall of a roadway, the telescopic supporting assembly on one side can be in a contraction state so that the bottom can be separated from the ground. The large shovel of the heading machine can clean scattered coal.

Description

TECHNICAL FIELD

[0001] The utility model relates to roadway support technology field, more specifically, the utility model relates to a row support. BACKGROUND

[0002] When carrying out underground mining operation, such as mining coal mine, needs to set up support equipment in the mining working face roadway and working face end, for supporting the roof surrounding rock, protecting the safety of construction personnel.

[0003] The existing support equipment can move forward with the tunneling progress, providing uninterrupted support force for the roof surrounding rock, but in the actual mining process, a large number of scattered coal will be concentrated on both sides of the support equipment, forming a triangular coal pile, which will surround the support components on both sides of the support equipment, affecting the forward movement of the support equipment, and thus affecting the tunneling progress, therefore, the coal pile needs to be cleaned in time. Due to the existence of the support components of the support equipment, the tunneling machine cannot be used to clean the scattered coal, and only manual cleaning can be used, which wastes a lot of manpower and time and affects the mining progress. SUMMARY

[0004] The utility model innovatively provides a row support, the side support plate on both sides of the row support can provide horizontal support force when cleaning scattered coal, so that the bottom of the telescopic support component is lifted off the ground, and the row support can still support the roof surrounding rock, the large shovel of the tunneling machine can be inserted into the bottom of the telescopic support component to clean the scattered coal, improving the coal cleaning efficiency and saving time.

[0005] To achieve the above technical purpose, the utility model discloses a row support, including two row supports, telescopic forward moving propelling piece, telescopic support component, side support plate and telescopic side propelling piece,

[0006] Each row support includes at least two roof beams and at least two joist components, the roof beams and the joist components are cross arranged, the roof beams are arranged above the joist components, the joist components include at least two parallel joists, at least two telescopic support components are arranged below the left and right sides of each row support,

[0007] The two row supports have a spacing distance, the roof beams of the two row supports are distributed alternately, the joist components of the two row supports are distributed alternately, at least one group of adjacent two joist components is provided with the telescopic forward moving propelling piece, and the telescopic forward moving propelling piece is used to push the two row supports to move forward relative to each other,

[0008] The left and right sides of the joist assembly are provided with the side support plates, the side support plates are connected with the joist assembly through the telescopic side pushers, at least one group of adjacent two joists in the joist assembly is provided with the telescopic side pusher, one end of the telescopic side pusher is fixedly connected with the two joists in front and behind thereof, the other end is connected with the side support plate, the side support plate includes a first state close to the joist assembly and a second state away from the joist assembly and supported on the sidewall of the roadway through the telescopic extension of the telescopic side pusher,

[0009] When the side support plates on the left and right sides of the row support are in the second state, part or all of the telescopic support assemblies on one side of the row support can be in the retracted state to make the bottom part off the ground.

[0010] Further, the surface of the side support plate away from the joist assembly is fixed with a friction-increasing soft plate.

[0011] Further, the friction-increasing soft plate is a rubber plate or a woven cloth rubber plate.

[0012] Further, the two end portions of the joist are each sleeved with a support beam, one end portion of the support beam is in the joist and the other end portion is outside the joist and is fixedly connected with the side support plate, and the support beam moves relative to the joist through the telescopic extension of the telescopic side pusher.

[0013] Further, the distance between the side support plate that needs to be moved and the rear side support plate adjacent to the front side support plate that needs to be moved and moved forward is greater than or equal to the length of one step of the row support.

[0014] Further, the telescopic side pusher is provided between every two adjacent joists of the joist assembly.

[0015] Further, the telescopic support assembly includes a plurality of telescopic struts parallel to each other, the number of telescopic struts in each telescopic support assembly is the same as or less than the number of joists in the joist assembly to which the telescopic support assembly is connected, and one telescopic strut is connected below each joist or one telescopic strut is connected below two joists.

[0016] Further, the telescopic support assembly further includes a bottom support plate, the bottom of all telescopic struts of the telescopic support assembly is fixedly connected with the bottom support plate.

[0017] Further, the telescopic strut is a hydraulic jack.

[0018] Further, the telescopic side pusher is a hydraulic jack.

[0019] The utility model discloses the beneficial effect is:

[0020] The utility model discloses the side support plate of two -sided of row support can be supported on the both sides of roadway when cleaning scattered coal and provides horizontal support force, makes the bottom of telescopic support subassembly of retractable type support component still can support top surrounding rock after row support of getting off ground, and the big shovel of heading machine can extend into the below of telescopic support subassembly of bottom suspension and clean scattered coal, improves coal cleaning efficiency, saves time. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the bottom view of row support of the utility model embodiment;

[0022] Figure 2 It is the side view of row support of the utility model embodiment after cutting along the front direction;

[0023] Figure 3 It is the front view of row support of the utility model embodiment;

[0024] Figure 4 It is the working state schematic diagram of row support of the utility model embodiment;

[0025] Figure 5 It is another working state schematic diagram of row support of the utility model embodiment.

[0026] In the drawings,

[0027] 1, row support;11, roof beam;12, joist subassembly;121, joist;13, difference block;2, telescopic front pusher;3, telescopic support subassembly;31, telescopic support column;32, bottom support plate;4, side support plate;5, telescopic side pusher;6, support beam;7, heading machine;71, big shovel;8, combined mining machine;81, cutting head;9, increase soft board. DETAILED DESCRIPTION

[0028] The row support provided by the utility model is explained and explained in detail below in connection with the drawings of the specification.

[0029] The embodiment specifically discloses a kind of row supports, such as Figures 1-3As shown, it comprises two row supports 1, a telescopic front moving propelling piece 2, a telescopic support assembly 3, a side support plate 4 and a telescopic side propelling piece 5. Each row support 1 comprises at least two roof beams 11 and at least two joist assemblies 12. The roof beams 11 and the joist assemblies 12 are arranged in cross. The roof beams 11 are arranged above the joist assemblies 12. The joist assembly 12 comprises at least two joists 121 which are parallel to each other. In this embodiment, the roof beams 11 are arranged in the front moving direction of the row support 1. The joist assembly 12 is arranged perpendicularly to the roof beams 11. Each joist 121 of the joist assembly 12 is also arranged perpendicularly to the roof beams 11. The adjacent joists 121 of each joist assembly 12 can be spaced apart. At least two telescopic support assemblies 3 are arranged below the left and right sides of each row support 1. Preferably, the telescopic support assembly 3 is connected to the joist assembly 12 of the row support 1. One telescopic support assembly 3 is arranged below the left and right sides of each joist assembly 12 to improve the support strength.

[0030] The two row supports 1 are spaced apart. The roof beams 11 of the two row supports 1 are arranged alternately. The joist assemblies 12 of the two row supports 1 are arranged alternately. The adjacent roof beams 11 are spaced apart. The adjacent joist assemblies 12 are spaced apart. As shown in Figure 1 and 2 The filled shadow part in the figure represents one row support 1. The unfilled shadow part represents the other row support 1. At least one set of adjacent two joist assemblies 12 is provided with a telescopic front moving propelling piece 2. In this embodiment, as shown in Figure 1 and 2 The telescopic front moving propelling piece 2 is arranged between the adjacent two joist assemblies 12. A plurality of parallel telescopic front moving propelling pieces 2 can be arranged between the adjacent two joist assemblies 12. The propelling moving force is large and the propelling is relatively stable. Optionally, the telescopic front moving propelling piece 2 is a hydraulic jack. The telescopic front moving propelling piece 2 is used to move the two row supports 1 relatively. When the telescopic front moving propelling piece 2 is converted from the contraction state to the elongation state, the front end connected row support 1 is driven to move forward. At this time, the rear end connected row support 1 remains stationary. After the front end of the telescopic front moving propelling piece 2 and the front end connected row support 1 move, they remain stationary. The rear end of the telescopic front moving propelling piece 2 is retracted to drive the rear end connected row support 1 to move forward, thereby realizing the relative movement of the two row supports 1. Uniform and uninterrupted support force is provided to the top surrounding rock, which is very safe.

[0031] The structures of the two row supports 1 can be completely identical, that is, the number of the top beams 11 and the number of the joist assemblies 12 of the two row supports 1 are completely identical; the structures of the two row supports 1 can also be different, that is, the number of the top beams 11 and the number of the joist assemblies 12 of one row support 1 can be one more than those of the other row support 1. In the embodiment, the structures of the two row supports 1 are completely identical.

[0032] As shown in Figs. 1 and 2, the top beam 11 and the joist assembly 12 are fixedly connected with each other. Figure 2 and 3 As shown in Figs. 1 and 2, the top beam 11 and the joist assembly 12 are fixedly connected with each other.

[0033] The left and right sides of the joist assembly 12 are provided with side support plates 4, the side support plates 4 are connected with the joist assembly 12 through telescopic side pushers 5, the top of the side support plate 4 can be flush with the top of the top beam 11 or slightly lower than the top of the top beam 11, at least one group of two adjacent joists 121 in the joist assembly 12 is provided with a telescopic side pusher 5, one end of the telescopic side pusher 5 is fixedly connected with the two joists 121 in front and behind thereof, the other end is connected with the side support plate 4, the side support plate 4 includes a first state (as shown in Fig. 3) close to the joist assembly 12 and a second state (as shown in Fig. 4) away from the joist assembly 12 and supported on the sidewall of the roadway through the telescopic side pusher 5, preferably, the telescopic side pusher 5 is provided between every two adjacent joists 121 of the joist assembly 12 to improve the side support strength and further improve the lateral support force. Figure 1 Figures 3-5 The left and right sides of the joist assembly 12 are provided with side support plates 4, the side support plates 4 are connected with the joist assembly 12 through telescopic side pushers 5, the top of the side support plate 4 can be flush with the top of the top beam 11 or slightly lower than the top of the top beam 11, at least one group of two adjacent joists 121 in the joist assembly 12 is provided with a telescopic side pusher 5, one end of the telescopic side pusher 5 is fixedly connected with the two joists 121 in front and behind thereof, the other end is connected with the side support plate 4, the side support plate 4 includes a first state (as shown in Fig. 3) close to the joist assembly 12 and a second state (as shown in Fig. 4) away from the joist assembly 12 and supported on the sidewall of the roadway through the telescopic side pusher 5, preferably, the telescopic side pusher 5 is provided between every two adjacent joists 121 of the joist assembly 12 to improve the side support strength and further improve the lateral support force. Figures 3-5 ​All the side support plates 4 can be supported on the left and right sidewalls of the roadway in the second state at the same time, so that the row support 1 is supported on the roof surrounding rock of the roadway, at this time, even if the bottom of part or all of the telescopic support assemblies 3 on one side of the row support is lifted in a suspended state, the row support 1 can still support the roof surrounding rock of the roadway, the telescopic support assembly 3 with the bottom lifted is no longer surrounded by the falling coal, at this time, the large shovel 71 of the heading machine 7 can be used to extend into the lower part of the telescopic support assembly 3 with the bottom lifted to clean the coal, and the telescopic support assembly 3 will not be hindered.

[0034] Optionally, the spacing between two adjacent side support plates 4 arranged in front and back is greater than or equal to the length of one step of the forward movement of the row support 1, that is, the arrangement of the side support plates 4 does not affect the forward movement of the row support 1. The length in the forward movement direction of the row support 1 and the vertical height of the side support plate 4 are set according to the transverse support strength, in the embodiment, the side support plate 4 is not only a support but more importantly a support, the length in the forward movement direction of the row support 1 and the vertical height of the side support plate 4 are both greater than 400 mm, the support area with the sidewall of the roadway is increased, and the support strength is improved, when the surrounding rock of the roadway is relatively broken, in order not to support the broken sidewall surrounding rock, the area of the side support plate 4 can also be increased.

[0035] Optionally, the telescopic side pushing piece 5 is a hydraulic jack, which not only plays a role in moving the side support plate 4 but also provides a transverse support force. In the embodiment, the piston diameter of the telescopic side pushing piece 5 is greater than 100 mm, so as to provide resistance to the downward sliding force generated when the support is suspended in the telescopic support assembly 3. The telescopic side pushing piece 5 is installed at the horizontal center position between the two joists 121, so as to avoid eccentric loading during use. The fixed end of the telescopic side pushing piece 5 is hinged to the two joists 121, and the movable end is hinged to the side support plate 4.

[0036] In the embodiment, the joist assembly 12 includes a plurality of joists 121, which also improves the transverse support strength. The joist 121 of each joist assembly 12 can also be selected to have a larger diameter to improve the support strength. The joist 121 is preferably a square steel beam.

[0037] Optionally, as shown in FIG. 6, the telescopic support assembly 3 is provided with a plurality of telescopic side pushing pieces 5, and the telescopic side pushing pieces 5 are arranged in front and back along the telescopic support assembly 3. Figures 1-3As shown, the two ends of the joist 121 are sleeved with support beams 6, one end of the support beam 6 is in the joist 121 and the other end is outside the joist 121 and is fixedly connected with the side support plate 4, the support beam 6 moves relative to the joist 121 through the extension and contraction of the telescopic side pusher 5, that is, the support beam 6 and the side support plate 4 move with the extension and contraction of the telescopic side pusher 5. The two ends of each joist 121 are sleeved with support beams 6, and the setting of as many support beams 6 as possible further improves the lateral support strength. Preferably, the support beam 6 is a square steel beam, which can bear the weight of about 30 tons of the row support and a part of the pressure of the roof surrounding rock, and has high bending strength.

[0038] Optionally, as shown in Figure 1 and 3 , the surface of the side support plate 4 away from the joist assembly 12 is fixed with a friction-increasing soft plate 9, which can increase the friction with the sidewall of the roadway (the sidewall surrounding rock of the roadway), improve the support strength, support the broken surrounding rock, avoid the broken surrounding rock, make the side support plate 4 support on the left and right sidewalls of the roadway, provide stable lateral support force, and further ensure that the row support 1 can support the roof surrounding rock. Preferably, the friction-increasing soft plate 9 is a rubber plate or a woven cloth rubber.

[0039] In some embodiments, as shown in Figure 1 , the telescopic support assembly 3 includes a plurality of telescopic struts 31 parallel to each other, the number of telescopic struts 31 in each telescopic support assembly 3 is the same as or less than the number of joists 121 in the joist assembly 12 connected thereto. When the number of telescopic struts 31 in each telescopic support assembly 3 is the same as the number of joists 121 in the joist assembly 12 connected thereto, one telescopic strut 31 is connected below each joist 121; when the number of telescopic struts 31 in each telescopic support assembly 3 is less than the number of joists 121 in the joist assembly 12 connected thereto, one telescopic strut can be connected below two joists 121. Optionally, the telescopic strut 31 is a hydraulic jack.

[0040] Optionally, as shown in Figure 2 and 3 , the telescopic support assembly 3 further includes a bottom support plate 32, the bottoms of all telescopic struts 31 of the telescopic support assembly 3 are fixedly connected with the bottom support plate 32, the bottom support plate 32 connects all telescopic struts 31 into one body, all telescopic struts 31 of the telescopic support assembly 3 can be extended and contracted at the same time, and the bottom support plate 32 can increase the contact area with the ground.

[0041] The side support plates 4 on the left and right sides of the row support 1 can simultaneously support the left and right sidewalls of the roadway, so that even if the bottom of part or all of the telescopic support assemblies 3 is lifted to a suspended state, the row support 1 can still support the roof surrounding rock of the roadway, without affecting the tunneling progress. Figure 4 As shown in the state diagram of the row support when the tunneling machine 7 is cleaning coal, the scattered coal only falls on the front part of the right side of the row support. When the tunneling machine 7 is cleaning coal, the side support plates 4 on the left and right sides of the row support are in the second state, supporting the left and right sidewalls of the roadway. The top of the row support 1 supports the top surrounding rock, and part or all of the telescopic support assemblies 3 on the front part of the right side of the row support are in the retracted state, with the bottom lifted to a suspended state. The side tip of the large shovel 71 on the right side of the tunneling machine 7 can pass under the bottom support plate 32 of the telescopic support assembly 3, close to the coal wall root, complete the cleaning of the triangular floating coal at the corner of the roadway, reduce the heavy physical labor of cleaning the side slope, and improve the efficiency of roadway tunneling.

[0042] The side support plates 4, telescopic side pushers 5, and support beams 6 of the present application provide the row support with strong lateral support force, so that the bottom of part or all of the telescopic support assemblies 3 on one side of the row support can be lifted to the highest position, while keeping the entire row support stable, without tilting or collapsing. The lateral support force generated by the cooperation of the side support plates 4, telescopic side pushers 5, support beams 6, and joist assemblies 12 can control the row support with a weight of about 30 tons and support force on the roof surrounding rock.

[0043] Because the cutting head 81 in front of the combined mining machine 8 is a 3.3-meter-long circular drum, the outer end face of the drum must rotate and advance close to the sidewall of the roadway. The large shovel of the combined mining machine 8 also needs to move forward close to the sidewall of the roadway. Therefore, the lower part of the machine body of the combined mining machine 8 also needs to move forward close to the sidewall of the roadway. Thus, a straight line of about 10 meters in length is formed, which is parallel to the roadway and close to the sidewall. No object is allowed in this straight line, including the telescopic support assemblies 3 of the row support.

[0044] The side support plates 4, telescopic side pushers 5, and support beams 6 of the present application can lift the bottom of the telescopic support assemblies 3 on one side of the row support to a suspended state, so that the row support can enter the upper part of the combined mining machine 8 to provide safety support for the workers, especially in the relatively narrow tunneling face of the combined mining machine 8. Moreover, it is better to lift the bottom of only 1 to 3 telescopic support assemblies 3 on one side of the row support when using the row support on the working face of the combined mining machine 8 (as shown in the state diagram). Figure 5 This effect is unexpected, which expands the use scenarios of the row support and solves the roof support problem of some coal mines using the combined mining machine 8.

[0045] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0046] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0047] In the description of the specification, the description of the terms "the embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in at least one embodiment or example. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0048] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0049] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and simple improvement made on the essential content of the present application shall be included in the protection scope of the present application.

Claims

1. A gang stand, characterized by, The device comprises two row supports (1), a telescopic front moving propelling element (2), a telescopic support assembly (3), a side support plate (4) and a telescopic side propelling element (5), Each of the row supports (1) comprises at least two roof beams (11) and at least two joist assemblies (12), the roof beams (11) and the joist assemblies (12) are arranged in cross, the roof beams (11) are arranged above the joist assemblies (12), the joist assemblies (12) comprise at least two parallel joists (121), at least two telescopic support assemblies (3) are arranged below each of the row supports (1) on the left and right sides, The two row supports (1) have a spacing distance, the roof beams (11) of the two row supports (1) are arranged alternately, the joist assemblies (12) of the two row supports (1) are arranged alternately, at least one group of adjacent two joist assemblies (12) is provided with the telescopic front moving propelling element (2), and the telescopic front moving propelling element (2) is used for moving the two row supports (1) forward. The left and right sides of the joist assembly (12) are provided with the side support plate (4), the side support plate (4) is connected with the joist assembly (12) through the telescopic side propelling element (5), at least one group of adjacent two joists (121) in the joist assembly (12) is provided with the telescopic side propelling element (5), one end of the telescopic side propelling element (5) is fixedly connected with two joists (121) in front and behind, the other end is connected with the side support plate (4), the side support plate (4) comprises a first state of being close to the joist assembly (12) and a second state of being away from the joist assembly (12) and being supported on the sidewall of the roadway through the telescopic side propelling element (5), When the side support plates (4) on the left and right sides of the row support (1) are in the second state, part or all of the telescopic support assemblies (3) on one side of the row support can be in a retracted state to separate the bottom from the ground.

2. The tandem stand of claim 1, wherein, The surface of the side support plate (4) away from the joist assembly (12) is fixed with a friction-increasing soft plate (9).

3. The tandem stand of claim 2, wherein, The friction-increasing soft plate (9) is a rubber plate or a woven cloth rubber plate.

4. The side-by-side cradle of claim 1, wherein, The two end portions of the joist (121) are sleeved with a support beam (6), one end portion of the support beam (6) is in the joist (121), and the other end portion is outside the joist (121) and is fixedly connected with the side support plate (4), and the support beam (6) moves relative to the joist (121) through the telescopic side propelling element (5).

5. The side-by-side cradle of claim 1, wherein, The spacing between two adjacent side support plates (4) arranged in front and back is greater than or equal to the length of one step of the row support (1).

6. The side-by-side cradle of claim 1, wherein, The telescopic side propelling element (5) is arranged between every two adjacent joists (121) of the joist assembly (12).

7. The side-by-side cradle of claim 1, wherein, The telescopic support assembly (3) comprises one or more telescopic struts (31) parallel to each other, and when the telescopic support assembly (3) comprises a plurality of telescopic struts (31) parallel to each other, the number of telescopic struts (31) in each telescopic support assembly (3) is the same as or less than the number of joists (121) in the joist assembly (12) connected thereto.

8. The side-by-side cradle of claim 7, wherein, The telescopic support assembly (3) further comprises a bottom support plate (32), and the bottoms of all telescopic struts (31) of the telescopic support assembly (3) are fixedly connected with the bottom support plate (32).

9. The tandem stand of claim 7 or 8, wherein, The telescopic strut (31) is a hydraulic jack.

10. The side-by-side cradle of claim 1, wherein, The telescopic side pushing piece (5) is a hydraulic jack.

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