Portable cantilever device for advance support of roadway anchor net cable

Abstract

A portable cantilever device for roadway anchor net cable advance support comprises a plurality of cantilever devices used for hanging a forepoling bar on an anchor rod and a connecting rod used for connecting the cantilever devices in the conveying process, each cantilever device comprises two parallel side plates, one side plate can be detachably connected with the connecting rod, and the other side plate can be detachably connected with the connecting rod. One side plate is provided with a through hole through which a connecting rod can penetrate, the other side plate is provided with a through hole through which the connecting rod can penetrate, a connecting plate, a supporting plate and a bearing shaft which are perpendicular to the side plates are sequentially connected between the two side plates, the connecting plate is used for being connected with an anchor rod, and the two side plates, the supporting plate and the bearing shaft jointly define a space through which a forepoling bar can penetrate. According to the utility model, the connecting rod can pass through the plurality of through holes to realize the connection of a plurality of cantilever devices, so that constructors can carry the cantilever devices conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor net cable tunnel support, in particular to a portable suspension beam device for tunnel anchor net cable advance support. Background Art

[0002] Advance support in coal mines is an auxiliary measure ahead of excavation to ensure the stability of the underground excavation working face. In the advance support of shafts and tunnels, front exploration beams are often used. The existing ones often use rails or I-beams as front exploration beams. The front exploration beams are suspended on the anchor rods through a suspension beam device and moved forward in time with the construction. The most common suspension beam device is a metal lifting ring, through which the front exploration beam is suspended on the anchor rod. For example, the Chinese patent document "202123084784.5" discloses an annular front exploration beam lifting ring, in which a plurality of lifting rings are sleeved together to form a first chute chain and a second chute chain to realize the suspension of the front exploration beam and the adjustment of its height. However, a front exploration beam requires multiple suspension beams. When carrying the suspension beam, the lifting ring is prone to shaking and instability, which is inconvenient for construction personnel to carry. Utility Model Content

[0003] In order to solve the problem in the prior art that one front exploration beam requires multiple beam hangers, and when carrying the beam hangers, the lifting rings are prone to shaking and are unstable, making it inconvenient for construction workers to carry, the utility model provides a portable beam hanger device for tunnel anchor net cable advance support. The device is provided with a connecting rod detachably connected to one of the side plates of the beam hanger, thereby realizing the connection of several beam hangers, which is convenient for construction workers to carry.

[0004] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a portable suspension beam device for advance support of tunnel anchor net cables, including multiple suspension beam devices for hanging a front exploration beam on an anchor rod and a connecting rod for connecting several suspension beam devices during transportation, the suspension beam device includes two parallel side plates, one of which can be detachably connected to the connecting rod, and the other side plate is provided with a through hole for the connecting rod to pass through, and a connecting plate, a support plate and a load-bearing shaft perpendicular to the side plates are connected in sequence between the two side plates, wherein the connecting plate is used to connect the anchor rod, and the two side plates, the support plate and the load-bearing shaft jointly enclose a space for the front exploration beam to pass through.

[0005] As a further optimization of the portable cantilever beam device for advance support of tunnel anchor net cable of the utility model: one end of the connecting rod is coaxially fixedly connected with a connecting shaft, an external thread is arranged on the connecting shaft, a connecting hole is opened on the side plate which can be detachably connected to the connecting rod, and an internal thread matching the external thread is arranged in the connecting hole.

[0006] As a further optimization of the portable suspension beam device for advance support of tunnel anchor net cables of the utility model: the other end of the connecting rod can be detachably connected to the limiting member.

[0007] As a further optimization of the portable suspension beam device for advance support of tunnel anchor net cable of the utility model: the limit member is set as a bolt, and the connecting rod is provided with a first screw hole matched with the bolt, and the first screw hole extends along the radial direction of the connecting rod.

[0008] As a further optimization of the portable suspension beam device for advance support of tunnel anchor net cables of the utility model: the other end of the connecting rod is threadedly connected with a nut.

[0009] As a further optimization of the portable suspension beam device for advance support of anchor net cables in a tunnel of the utility model: a rolling sleeve is provided on the rotating sleeve of the load-bearing shaft, and the inner surface of the rolling sleeve is in contact with the surface of the load-bearing shaft.

[0010] As a further optimization of the portable suspension beam device for advance support of anchor net cables in a tunnel according to the utility model: a receiving groove is provided on the load-bearing shaft, and grease is arranged in the receiving groove.

[0011] As a further optimization of the portable suspension beam device for advance support of tunnel anchor net cables of the utility model: a mounting hole for the anchor rod to pass through is opened on the connecting plate.

[0012] As a further optimization of the portable suspension beam device for advance support of tunnel anchor net cables of the utility model: a clamping screw is passed through the support plate, and the clamping screw is used to clamp the front exploration beam in the space.

[0013] As a further optimization of the portable suspension beam device for advance support of tunnel anchor net cables of the utility model: a channel for the compression screw to pass through is opened on the connecting plate, and the channel and the mounting hole are staggered.

[0014] Beneficial effect: One of the side plates of the beam hanger provided in the utility model is detachably connected with a connecting rod, and the other side plate is provided with a through hole for the connecting rod to pass through. The connecting rod can be passed through several through holes to achieve the connection of several beam hangers, which is convenient for construction workers to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is a partial enlarged view of the utility model;

[0018] Figure 4 It is a schematic diagram of the cooperation between the connecting rod and the limiting part;

[0019] Figure 5 It is a schematic diagram of the coordination between the connecting rod and several cantilever beams;

[0020] Figure numerals: 1. hanger, 2. connecting rod, 3. bolt, 4. through hole, 5. connecting hole, 6. mounting hole, 7. channel, 8. load-bearing shaft, 9. rolling sleeve, 10. support plate, 11. clamping screw, 12. connecting shaft, 13. second screw hole, 14. connecting plate, 15. side plate, 16. space. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further elaborated in detail below in conjunction with specific embodiments. The parts that are not described and disclosed in detail in the following embodiments of the present invention should be understood as the existing technologies known or should be known to those skilled in the art, such as the material of the suspension beam 1, the material of the rolling sleeve 9, etc.

[0022] Example 1

[0023] A portable suspension beam device for tunnel anchor cable advance support, such as Figure 1 and Figure 5 As shown, it includes a plurality of beam hangers 1 for hanging the front exploration beam on the anchor rod and a connecting rod 2 for connecting several beam hangers 1 during transportation. The beam hanger 1 includes two parallel side plates 15, one of which can be detachably connected to the connecting rod 2, and the other side plate 15 is provided with a through hole 4 for the connecting rod 2 to pass through. A connecting plate 14, a support plate 10 and a load-bearing shaft 8 that are perpendicular to the side plates 15 are connected in sequence between the two side plates 15, wherein the connecting plate 14 is used to connect the anchor rod, and the two side plates 15, the support plate 10 and the load-bearing shaft 8 together enclose a space 16 for the front exploration beam to pass through.

[0024] In order to carry several beam hangers 1 together during construction to avoid carrying them one by one, the connecting rod 2 can be detachably connected to one of the side plates 15, and then the connecting rod 2 can be passed through the through hole 4 to connect several beam hangers 1. At this time, the construction personnel can hold the beam hanger 1 connected with the connecting rod 2 or hold the part of the connecting rod 2 extending behind all the through holes 4. In order to facilitate the installation of the beam hanger 1 and the anchor rod, a mounting hole 6 for the anchor rod to pass through is opened on the connecting plate 14, and a nut is provided on the part of the anchor rod passing through the mounting hole 6 for fastening. The anchor rod is a prior art in the field, and its structure will not be described in detail here.

[0025] The above is a basic implementation method of the utility model, which can be further improved, optimized and limited on the basis of the above to obtain the following embodiments:

[0026] Example 2

[0027] This embodiment is an improved solution based on the embodiment 1. Its main structure is the same as that of the embodiment 1. The improvement is as follows: Figure 2 and Figure 3As shown, one end of the connecting rod 2 is coaxially fixedly connected with a connecting shaft 12, and an external thread is provided on the connecting shaft 12. A connecting hole 5 is provided on the side plate 15 that can be detachably connected to the connecting rod 2, and an internal thread matching the external thread is provided in the connecting hole 5. When it is necessary to carry several beam suspenders 1, the connecting shaft 12 is directly screwed into the connecting hole 5, and the connecting rod 2 can be fixed, and several beam suspenders 1 can be connected together for carrying.

[0028] Example 3

[0029] This embodiment is an improved solution based on the embodiment 2. Its main structure is the same as that of the embodiment 2. The improvement is as follows: Figure 4 As shown, in order to prevent the connected several suspension beam devices 1 from falling off from the connecting rod 2, the other end of the connecting rod 2 is detachably connected to a limiting member. The limiting member is set as a bolt 3, and the connecting rod 2 is provided with a first screw hole that cooperates with the bolt 3, and the first screw hole extends along the radial direction of the connecting rod 2. After the connecting rod 2 passes through the through hole 4 in turn, the bolt 3 is screwed into the first screw hole to achieve the limiting function, wherein, if the first screw hole extends along the axial direction of the connecting rod 2, it cannot be limited, and the suspension beam device 1 is still easy to fall off when driven greatly. Alternatively, the other end of the connecting rod 2 can also be threadedly connected with a nut, which can also achieve the limiting function.

[0030] Example 4

[0031] This embodiment is an improved solution based on the embodiment 1. Its main structure is the same as that of the embodiment 1. The improvement is as follows: Figure 2 As shown, when the front exploration beam is extended into the space 16, long-term use will cause serious friction damage to the bearing shaft 8. In order to reduce the friction damage to the surface of the bearing shaft 8, a rolling sleeve 9 is rotatably provided on the bearing shaft 8, and the inner surface of the rolling sleeve 9 is in contact with the surface of the bearing shaft 8. In order to better reduce the friction borne by the bearing shaft 8, a receiving groove is provided on the bearing shaft 8, and grease is provided in the receiving groove.

[0032] Example 5

[0033] This embodiment is an improved solution based on the embodiment 1. Its main structure is the same as that of the embodiment 1. The improvement is as follows: Figure 1 and Figure 2As shown, in order to ensure smooth passage when the front exploration beam extends into the space 16, the front exploration beam will not completely occupy the space 16. However, in this way, the front exploration beam is prone to shaking and is unstable. In order to allow the front exploration beam to be stable in the space 16, a clamping screw 11 is passed through the support plate 10. The clamping screw 11 is used to clamp the front exploration beam in the space 16. A second screw hole 13 is provided on the support plate 10. The clamping screw 11 passes through the second screw hole 13 and rests on the surface of the front exploration beam and is then fixed with a clamping nut. The connecting plate 14 is located above the support plate 10. In order to prevent the existence of the connecting plate 14 from affecting the adjustment of the clamping nut, a channel 7 is provided on the connecting plate 14 for the clamping screw 11 to pass through. In order to avoid mutual interference between the channel 7 and the mounting hole 6, the channel 7 and the mounting hole 6 are staggered.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable suspension beam device for tunnel anchor cable advance support, characterized in that: The invention comprises a plurality of beam hangers (1) for hanging a front exploration beam on an anchor rod and a connecting rod (2) for connecting a plurality of beam hangers (1) during transportation. The beam hanger (1) comprises two mutually parallel side plates (15), one of which can be detachably connected to the connecting rod (2), and the other side plate (15) is provided with a through hole (4) through which the connecting rod (2) can pass. A connecting plate (14) perpendicular to the side plates (15), a supporting plate (10) and a bearing shaft (8) are sequentially connected between the two side plates (15), wherein the connecting plate (14) is used to connect the anchor rod, and the two side plates (15), the supporting plate (10) and the bearing shaft (8) jointly enclose a space (16) through which the front exploration beam passes.

2. The portable suspension beam device for tunnel anchor cable advance support according to claim 1, characterized in that: One end of the connecting rod (2) is coaxially fixedly connected to a connecting shaft (12), and an external thread is provided on the connecting shaft (12). A connecting hole (5) is provided on a side plate (15) that can be detachably connected to the connecting rod (2), and an internal thread matching the external thread is provided in the connecting hole (5).

3. The portable suspension beam device for tunnel anchor cable advance support as claimed in claim 2, characterized in that: The other end of the connecting rod (2) is detachably connected to a limiting member.

4. The portable suspension beam device for tunnel anchor cable advance support as claimed in claim 3, characterized in that: The limiting member is configured as a bolt (3), and a first screw hole cooperating with the bolt (3) is provided on the connecting rod (2), and the first screw hole extends in the radial direction of the connecting rod (2).

5. The portable suspension beam device for tunnel anchor cable advance support as claimed in claim 2, characterized in that: The other end of the connecting rod (2) is threadedly connected with a nut.

6. The portable suspension beam device for tunnel anchor cable advance support according to claim 1, characterized in that: A rolling sleeve (9) is rotatably mounted on the load-bearing shaft (8), and the inner surface of the rolling sleeve (9) is in contact with the surface of the load-bearing shaft (8).

7. The portable suspension beam device for tunnel anchor cable advance support as claimed in claim 6, characterized in that: The bearing shaft (8) is provided with a receiving groove, and lubricating grease is arranged in the receiving groove.

8. The portable suspension beam device for tunnel anchor cable advance support as claimed in claim 1, characterized in that: The connecting plate (14) is provided with a mounting hole (6) for the anchor rod to pass through.

9. The portable suspension beam device for tunnel anchor cable advance support as claimed in claim 8, characterized in that: A clamping screw (11) is provided on the support plate (10), and the clamping screw (11) is used to clamp the front exploration beam in the space (16).

10. The portable suspension beam device for tunnel anchor cable advance support according to claim 9, characterized in that: The connecting plate (14) is provided with a channel (7) for the pressing screw (11) to pass through, and the channel (7) and the mounting hole (6) are staggered.

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