CN215256269U - High-strength anchor rod supporting tray - Google Patents

Abstract

The utility model relates to a coal industry bolting technical field, concretely relates to stock support tray of high strength, be in including a circular shape plane tray main part and setting the outer circumference of tray main part supports the main part, the centre of a circle department of tray main part sets up the stock hole, the edge downwardly extending of tray main part sets up a plurality of recesses, adjacent two corresponding formation is protruding between the arch, protruding edge the radial outside extension of tray main part, the stock support tray is whole to be the star structure. The utility model discloses utilize the protruding service strength that increases the tray, rational in infrastructure, save the processing material, reduction in production cost has improved the bearing capacity of stock support tray moreover, has increased the life of tray, and the practicality is strong.

Description

High-strength anchor rod supporting tray

Technical Field

The utility model relates to a coal industry anchor bolt support technical field, concretely relates to anchor bolt support tray of high strength.

Background

The anchor bolt support is a reinforcing support mode adopted in coal mining or rock-soil deep foundation pits, and mainly comprises an anchor bolt, an anchoring agent, a tray and the like. The existing tray is generally in a flat plate shape or a butterfly shape, the stress of the flat plate type tray and a rock surface is unbalanced, the stress of the central hole of the tray is large, the stress of the periphery is small, the tray is easy to deform under stress and lose the supporting capability, the structure is improved, the tray is preferably in the butterfly shape, the contact area of the butterfly-shaped tray is increased, the stress distribution is improved, but in the using process, the central anchor rod hole of the tray is the weakest part and is easy to tear, and further the support failure is caused. Therefore, how to increase the supporting strength of the tray is an important issue regarding the bolting effect.

Chinese patent CN202370557U discloses a dish-shaped tray of anchor supporting system, this dish-shaped tray is equipped with a discoid tray main part, the tray main part back evenly is equipped with bellied radial strengthening rib, the border of tray main part is equipped with bellied annular ring flange ring, the central top of tray main part is the through-hole of spherical, the through-hole inner wall is coincided with the spherical surface of globular universal aligning ball pad and is pasted mutually, through the angle of adjusting universal aligning ball pad, can guarantee that inside and outside stock or the anchor rope of tunnel country rock is in on the same straight line. The dish-shaped tray can prevent the anchor rod or the anchor cable from being sheared by tangential force due to the unevenness of the surface of the roadway, thereby improving the reliability of an anchoring system and ensuring the safety of the roadway top plate and the surrounding rock control effect.

Above-mentioned butterfly tray among the prior art increases bellied strengthening rib in tray main part, and whole materials increase not only leads to tray weight to increase, and manufacturing cost is high moreover to tray main part's thickness is less than the thickness of tray outer fringe, and stock hole department tears easily, leads to strutting inefficacy.

Therefore, it is necessary to design a bolting tray with less material and high strength.

SUMMERY OF THE UTILITY MODEL

In view of the technical problem, the utility model provides a stock support tray of high strength, technical scheme is as follows:

the utility model provides a high strength's stock support tray, includes a circular shape plane tray main part and sets up the support main part of the outer circumference of tray main part, the centre of a circle department of tray main part sets up the stock hole, the marginal downwardly extending of tray main part sets up a plurality of recesses, adjacent two corresponding formation between the recess is protruding, protruding edge the radial outside extension of tray main part, protruding with the recess constitutes star structure.

Further, stock support tray formula forming structure as an organic whole, the edge of stock support tray is the square.

Further, the ratio of the thickness of the tray main body to the thickness of the support main body is 3: and 2, the thickness of the anchor bolt support tray is smoothly transited to the support main body along the radial direction of the tray main body.

Still further, the thickness of the tray main body is 15mm, and the thickness of the support main body is 10 mm.

Further, the number of the protrusions is 3-6.

Further, the diameter of the tray main body is 50-100 mm.

Further, the height of the supporting main body higher than the tray main body is 15-30 mm.

The utility model has the advantages that:

1. the utility model discloses set up the arch of star structure with the stock supporting tray, including tray main part and support main part, set up the stock hole in the tray main part, the edge of tray main part sets up the arch, the protruding strengthening rib that is equivalent to the tray improves the bearing capacity of tray.

2. The utility model discloses a set up the arch in the tray main part, the arch is used for improving the intensity of tray, and is rational in infrastructure, save material reduces the processing cost.

3. The utility model discloses with the thickness of tray main part with the thickness ratio of tray edge sets up to 3: 2, when the anchor rod is used for supporting, the thickness of the periphery of the anchor rod hole of the tray is large, the tray is not easy to tear, and the service life of the tray is prolonged.

Drawings

Fig. 1 is the utility model provides a structural schematic of anchor bolt support tray.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

In the figure, 1, a tray main body, 2, an anchor rod hole, 3, a groove, 4, a bulge, 5 and a support main body.

Detailed Description

The technical solution of the present invention will be described in detail and clearly with reference to the accompanying drawings, and it is obvious that the described embodiments are not all embodiments of the present invention, and all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention. It should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1-2, the utility model provides a high-strength anchor rod supporting tray, the anchor rod supporting tray is a square structure formed as an integrated body, including a circular plane tray main body 1 and a supporting main body 5 arranged on the outer circumference of the tray main body, the supporting main body contacts with the wall body to be supported, an anchor rod hole 2 is arranged at the center of the circle of the tray main body 1, four grooves 3 are arranged at the edge of the tray main body 1 in a downward extending manner, a protrusion 4 is correspondingly formed between two adjacent grooves 3, and the protrusion 4 extends outwards along the radial direction of the tray main body 1; recess 3 with arch 4 constitutes the star configuration, arch 4 constitutes the outer point portion of stock support tray star configuration, recess 3 constitutes the interior point portion of stock support tray star configuration.

The diameter of the tray main body 1 is 70mm, and the thickness of the tray main body is 15 mm; the thickness of the support main body is 10 mm; the thickness of anchor bolt support tray along the radial of tray main part to support the main part smooth transition, support main part 5 is higher than the height of tray main part 1 is 20 mm.

The anchor rod supporting tray of the utility model is punched to form a groove 3 and a bulge 4 after blanking; the bulges 4 are equivalent to reinforcing ribs of the anchor bolt support tray and used for improving the bearing capacity of the anchor bolt support tray and prolonging the service life of the anchor bolt support tray. Meanwhile, the thickness of the tray main body 1 is larger than that of the support main body 5, so that the periphery of the anchor rod hole 2 is not easy to tear during supporting, and the service life of the anchor rod supporting tray is prolonged.

The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit, although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the scope of the technical solutions of the present invention, and all of them should be covered in the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a high strength's stock support tray, includes a circular shape plane tray main part and sets up the outer circumference of tray main part supports the main part, the centre of a circle department of tray main part sets up the stock hole, its characterized in that: the tray comprises a tray body and is characterized in that a plurality of grooves are formed in the edge of the tray body in a downward extending mode, protrusions are correspondingly formed between every two adjacent grooves, the protrusions extend outwards in the radial direction of the tray body, and the protrusions and the grooves form a star-shaped structure.

2. A bolting tray according to claim 1, characterised in that: the anchor rod supporting tray is of an integrated forming structure, and the edge of the anchor rod supporting tray is square.

3. A bolting tray according to claim 1, characterised in that: the ratio of the thickness of the tray main body to the thickness of the support main body is 3: and 2, the thickness of the anchor bolt support tray is smoothly transited to the support main body along the radial direction of the tray main body.

4. A bolting tray according to claim 3, characterised in that: the thickness of tray main part is 15mm, the thickness of support main part is 10 mm.

5. A bolting tray according to claim 1, characterised in that: the number of the projections is 3-6.

6. A bolting tray according to claim 1, characterised in that: the diameter of the tray main body is 50-100 mm.

7. A bolting tray according to claim 1, characterised in that: the height of the supporting main body higher than the tray main body is 15-30 mm.

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