Temporary supporting column for mounting roof anchor rod

Abstract

The utility model discloses a roof anchor rod installation temporary pillar, which comprises a top rod, a support, a spacer pin, an auxiliary support, a top plate and an anchor disc, the top rod and the support are both of a columnar structure, the top surface of the support is shelled, the lower end of the top rod is adjustably and coaxially arranged in a cavity of the support, the top plate is of a plate structure, and the edge of the top plate is provided with a vertical plate with a pair of through holes. The side face of the top of the ejector rod is provided with a pair of vertical plates with through holes, the vertical plates are matched with the through hole vertical plates on the edge of the ejector rod, the plate faces of the vertical plates of the ejector rod are vertically arranged in the radial direction of the ejector rod and are symmetrical in the axial direction of the ejector rod, the ejector plate is detachably arranged at the top of the ejector rod through a limiting pin, the auxiliary support is movably arranged on the ejector rod, and the anchor disc is placed on the auxiliary support. According to the technical scheme, a detachable modular structure is adopted, a top plate and an anchor disc which need to be installed subsequently serve as a part of a jacking mechanism during jacking, installation of a top plate anchor rod can be prepared while temporary supporting is completed, repeated high-altitude operation is avoided, and safety is high.

Description

Technical Field

[0001] The utility model relates to the field of mine roadway support, in particular to a temporary support for installing roof bolts. Background Art

[0002] When mining ores, roadways need to be opened in coal mines. As the mining depth of the mining area increases continuously, the problems encountered in the support of mine roadways also increase. Since the rock strata in some mining areas are mostly weakly cemented soft rocks, the influence on the tunneling support of roadways is not obvious during shallow mining. After entering the middle-deep part, roof caving is likely to occur during roadway tunneling, which seriously affects the safety of workers and restricts the tunneling efficiency of roadways. Therefore, roof bolts need to be installed in the mine roadway.

[0003] When installing roof bolts, a temporary support using a pillar needs to be provided. The existing patent CN2282069 discloses a temporary support for installing roof bolts, which is most suitable for the temporary support of mine roadway tunneling. The working resistance of the support is provided by the mechanical friction formed by inserting two column bodies up and down in the column body. The upper and lower column bodies can move relative to each other, and a clamping mechanism is provided at the interface. It can carry out tunneling and anchoring simultaneously, so that tunneling and bolt installation can be carried out synchronously, and various temporary supports are eliminated.

[0004] Since the roof bolts need to operate at the top of the roadway, there is a certain risk of the operator falling. The traditional temporary support requires two high-altitude operations during temporary support and installation respectively, which increases the additional installation risk.

[0005] There is a need for a temporary support for installing roof bolts to solve the above problems. Summary of the Utility Model

[0006] [[ID=2,2]]The utility model is to solve the problem that in the prior art, since the roof bolts need to operate at the top of the roadway, there is a certain risk of the operator falling, and the traditional temporary support requires two high-altitude operations during temporary support and installation respectively, which increases the additional installation risk. A temporary support for installing roof bolts is provided, which solves the above problems.

[0007] The utility model provides a temporary support for installing roof bolts, which includes a top rod, a support, a limit pin, an auxiliary support, a roof plate and an anchor plate. The top rod and the support are both columnar structures. The top surface of the support is shelled. The lower end of the top rod is coaxially adjustable and arranged in the cavity of the support. The roof plate is a plate structure. A vertical plate with a pair of through holes is arranged at the edge of the roof plate. A pair of vertical plates with through holes are arranged on the side surface of the top of the top rod to cooperate with the vertical plate with through holes at the edge of the roof plate. The plate surface of the vertical plate of the top rod is vertically arranged along the radial direction of the top rod and is axially symmetric along the top rod. The roof plate is detachably arranged on the top of the top rod through a limit pin. The auxiliary support is movably arranged on the top rod, and the anchor plate is placed on the auxiliary support.

[0008] A temporary support for installing roof bolts according to the present utility model. As a preferred embodiment, a flexible contact pad is provided between the top end of the rod and the roof, and the area of the flexible contact pad is larger than the contact surface of the top end of the rod.

[0009] A temporary support for installing roof bolts according to the present utility model. As a preferred embodiment, the auxiliary support includes a cylinder, a positioning hole, a positioning bolt, and a frame. The cylinder is a cylinder with a through hole, the positioning hole is a threaded hole, the positioning hole penetrates the inner and outer surfaces of the cylinder and is arranged along the radial line of the cylinder, the positioning bolt is fastened centripetally in cooperation with the positioning hole, and the frame is a horizontally placed tray structure and is arranged on the side surface of the cylinder.

[0010] A temporary support for installing roof bolts according to the present utility model. As a preferred embodiment, a threaded hole is provided at the bottom of the rod.

[0011] A temporary support for installing roof bolts according to the present utility model. As a preferred embodiment, the support includes a support shell, a force - adding gear, a horizontal shaft, a force - adding lever, a screw rod, and a jacking gear. The force - adding gear, the horizontal shaft, the force - adding lever, the screw rod, and the jacking gear are all arranged inside the support shell. The force - adding gear is a bevel gear, the jacking gear is vertically meshed with the force - adding gear, the number of teeth of the force - adding gear is less than that of the jacking gear, the jacking gear is fixed at the bottom end of the screw rod, a threaded hole is provided at the bottom of the rod, the screw rod is threadedly connected to the threaded hole of the rod, the force - adding gear is fixed on the horizontal shaft, the horizontal shaft is horizontally arranged, the horizontal shaft passes through the side surface of the base, and the force - adding lever is vertically fixed at the end of the horizontal shaft arranged outside the base.

[0012] The beneficial effects of the present utility model are as follows:

[0013] This technical solution adopts a detachable modular structure. While jacking, the roof and the anchor plate to be installed subsequently are used as part of the jacking mechanism. While completing the temporary support, the installation of roof bolts can be prepared. The auxiliary support is used to jack the anchor plate for installation to the installation position at the same time. The operator only needs to carry the anchor nails to achieve roof installation, avoiding repeated high - altitude operations and having high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a temporary support for installing roof bolts;

[0015] Figure 2 It is a schematic diagram of the auxiliary support of a temporary support for installing roof bolts;

[0016] Figure 3 It is a schematic diagram of the support of a temporary support for installing roof bolts.

[0017] Reference numerals:

[0018] 1. Thrust rod; 2. Support; 21. Support shell; 22. Boosting gear; 23. Horizontal shaft; 24. Boosting lever; 25. Screw rod; 26. Jacking gear; 3. Limit pin; 4. Auxiliary support; 41. Cylinder; 42. Positioning hole; 43. Positioning bolt; 44. Frame; 5. Top plate; 6. Anchor plate. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Embodiment 1

[0021] As Figure 1 shown, a temporary support for installing roof bolts includes a thrust rod 1, a support 2, a limit pin 3, an auxiliary support 4, a top plate 5 and an anchor plate 6. The thrust rod 1 and the support 2 are both columnar structures. The top surface of the support 2 is shelled. The lower end of the thrust rod 1 is coaxially adjustable and arranged in the cavity of the support 2. The top plate 5 is a plate structure. A vertical plate with a pair of through holes is arranged at the edge of the top plate 5. A pair of vertical plates with through holes that cooperate with the vertical plate of the through hole at the edge of the top plate 5 are arranged on the side surface of the top of the thrust rod 1. The plate surface of the vertical plate of the thrust rod 1 is vertically arranged along the radial direction of the thrust rod 1 and is axially symmetric along the thrust rod 1. The top plate 5 is detachably arranged on the top of the thrust rod 1 through the limit pin 3. The auxiliary support 4 is movably arranged on the thrust rod 1. The anchor plate 6 is placed on the auxiliary support 4.

[0022] A flexible contact pad is arranged between the top end of the thrust rod 1 and the top plate 5, and the area of the flexible contact pad is larger than the contact surface of the top end of the thrust rod 1.

[0023] As Figure 2 shown, the auxiliary support 4 includes a cylinder 41, a positioning hole 42, a positioning bolt 43 and a frame 44. The cylinder 41 is a cylinder with a through hole. The positioning hole 42 is a threaded hole. The positioning hole 42 penetrates the inner and outer surfaces of the cylinder 41 and is arranged along the radial line of the cylinder 41. The positioning bolt 43 is fastened centripetally in cooperation with the positioning hole 42. The frame 44 is a horizontally placed tray structure, and the frame 44 is arranged on the side surface of the cylinder 41.

[0024] A threaded hole is arranged at the bottom of the thrust rod 1.

[0025] As Figure 3As shown in the figure, the support 2 includes a support housing 21, a boosting gear 22, a horizontal shaft 23, a boosting lever 24, a screw 25 and a jacking gear 26. The boosting gear 22, the horizontal shaft 23, the boosting lever 24, the screw 25 and the jacking gear 26 are all arranged inside the support housing 21. The boosting gear 22 is a bevel gear. The jacking gear 26 is vertically meshed with the boosting gear 22. The number of teeth of the boosting gear 22 is less than that of the jacking gear 26. The jacking gear 26 is fixed at the bottom end of the screw 25. A threaded hole is provided at the bottom of the ejector rod. The screw 25 is threadedly connected to the threaded hole of the ejector rod 1. The boosting gear 22 is fixed on the horizontal shaft 23. The horizontal shaft 23 is horizontally arranged and passes through the side surface of the support housing 21. The boosting lever 24 is vertically fixed at the end of the horizontal shaft 23 outside the support housing 21.

[0026] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A temporary support for installing roof bolts (5), characterized in that: It includes a jack rod (1), a support (2), a limit pin (3), an auxiliary support (4), a top plate (5) and an anchor plate (6). The jack rod (1) and the support (2) are both columnar structures. The top surface of the support (2) is shelled. The lower end of the jack rod (1) is coaxially adjustable and arranged in the cavity of the support (2). The top plate (5) is a plate structure. A vertical plate with a pair of through holes is arranged at the edge of the top plate (5). A pair of vertical plates with through holes that cooperate with the vertical plate of the through hole at the edge of the top plate (5) are arranged on the side surface of the top of the jack rod (1). The plate surface of the vertical plate of the jack rod (1) is vertically arranged along the radial direction of the jack rod (1) and is axially symmetric along the jack rod (1). The top plate (5) is detachably arranged on the top of the jack rod (1) through the limit pin (3). The auxiliary support (4) is movably arranged on the jack rod (1). The anchor plate (6) is placed on the auxiliary support (4).

2. A temporary support for installing roof bolts of a roof plate (5) according to claim 1, characterized in that: A flexible contact pad is arranged between the top end of the jack rod (1) and the top plate (5), and the area of the flexible contact pad is larger than the contact surface of the top end of the jack rod (1).

3. A temporary support for installing roof bolts of a roof plate (5) according to claim 1, characterized in that: The auxiliary support (4) includes a cylinder body (41), a positioning hole (42), a positioning bolt (43) and a frame body (44). The cylinder body (41) is a cylinder with a through hole. The positioning hole (42) is a screw hole. The positioning hole (42) penetrates the inner and outer surfaces of the cylinder body (41) and is arranged along the radial line of the cylinder body (41). The positioning bolt (43) is centripetally tightened in cooperation with the positioning hole (42). The frame body (44) is a horizontally placed tray structure, and the frame body (44) is arranged on the side surface of the cylinder body (41).

4. A temporary support for bolt installation on a roof slab (5) according to claim 1, characterized in that: A screw hole is arranged at the bottom of the jack rod (1).

5. A temporary support for installing a roof bolt of the roof plate (5) according to claim 4, characterized in that: The support (2) includes a support shell (21), a force - adding gear (22), a horizontal shaft (23), a force - adding lever (24), a screw rod (25) and a jacking gear (26). The force - adding gear (22), the horizontal shaft (23), the force - adding lever (24), the screw rod (25) and the jacking gear (26) are all arranged in the support shell (21). The force - adding gear (22) is a bevel gear. The jacking gear (26) is vertically meshed with the force - adding gear (22). The number of teeth of the force - adding gear (22) is less than that of the jacking gear (26). The jacking gear (26) is fixed at the bottom end of the screw rod (25). A threaded hole is arranged at the bottom of the jack rod. The screw rod (25) is threadedly connected to the screw hole of the jack rod (1). The force - adding gear (22) is fixed on the horizontal shaft (23). The horizontal shaft (23) is horizontally arranged. The horizontal shaft (23) passes through the side surface of the support shell (21). The force - adding lever (24) is vertically fixed at the end of the horizontal shaft (23) arranged outside the support shell (21).

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