CN217380617U

CN217380617U - Tray assembly and device for ultrahigh-strength support

Info

Publication number: CN217380617U
Application number: CN202221383344.1U
Authority: CN
Inventors: 陈正; 鲁岩; 刘长友; 樊宇; 张平; 徐杰; 王立栋
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-06
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses a tray assembly and a device for ultrahigh strength support, the tray assembly comprises a tray body and a cushion block, a groove part is formed on the tray body, and a first anchor hole is formed on the groove bottom wall of the groove part; the cushion block is integrally arranged in the groove portion, and a second anchor hole corresponding to the first anchor hole is formed in the cushion block. According to the utility model discloses, through set up the cushion in the concave part of tray body, greatly improved tray assembly's overall structure intensity to and tray assembly bears the ability of load.

Description

Tray assembly and device for ultrahigh-strength support

Technical Field

The utility model belongs to the technical field of the safety support technique and specifically relates to a tray subassembly and device for super high-strength support is related to.

Background

With the development of economy in China, the requirements of people on quality of life and environment are continuously improved, and the problems of land resource shortage, energy demand increase, natural environment optimization and transformation and the like are increasingly prominent. The problems to be solved are reasonable development of underground space, mining of mineral resources and environmental remediation, and the problems all relate to a safety support technology to ensure the stability of rock and soil mass. The anchor rod tray support is one of the common methods in the coal mine tunneling roadway support, and due to the influences of factors such as roof surrounding rock types and stress conditions, anchor rod type selection and specification, roadway section and the like, reasonable design of high-strength anchor rods and tray structures and materials is the key point of the support technology, and plays a significant role in lifting underground safety.

The anchor bolt support is characterized in that the mechanical state of surrounding rock is changed through anchor bolts in the surrounding rock, an integral and stable rock zone is formed around a roadway, and the aim of maintaining the stability of the roadway is fulfilled by utilizing the combined action of the anchor bolts and the surrounding rock. The anchor rod tray is used as an important part in an anchor rod supporting system, and the supporting effect of the anchor rod is directly influenced by the action effect of the anchor rod tray. The anchor rod tray is a bridge which interacts with the surrounding rock and the anchor rod body, transmits the thrust generated by the nut locking torque to the surrounding rock to generate initial anchoring force, and simultaneously transmits the pressure of the surrounding rock to the anchor rod to generate working resistance so as to jointly reinforce the surrounding rock. However, the anchor rod tray is often bent due to insufficient strength, and the overall supporting effect is affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a tray assembly for super high-strength support, tray assembly's simple structure, structural strength is high, and it is convenient just to install effectual to strut.

According to the utility model discloses a tray subassembly for superelevation strong support of first aspect embodiment, include: the tray comprises a tray body and a cushion block, wherein a groove part is formed on the tray body, and a first anchor hole is formed in the bottom wall of the groove part; the cushion block is integrally arranged in the groove portion, and a second anchor hole corresponding to the first anchor hole is formed in the cushion block.

According to some embodiments of the invention, the spacer is kept away from a side surface of the groove bottom wall is lower than the notch position of the groove portion, or the spacer is kept away from a side surface of the groove bottom wall and is flush with the notch of the groove portion.

According to some embodiments of the invention, the groove portion is formed as a circular truncated cone.

According to some embodiments of the invention, the cushion block comprises: the base plate is provided with the second anchor hole, and the outer periphery of the base plate is provided with a flanging part; the first convex pipe is arranged at the second anchor hole, a first through hole communicated with the second anchor hole is formed in the first convex pipe, and the first convex pipe and the flanging part are positioned on the same side of the base plate; and the first reinforcing rib is connected between the flanging part and the first convex pipe.

According to some embodiments of the utility model, first strengthening rib is a plurality of, and is a plurality of first strengthening rib is in the interval sets up in the circumference of first bulge tube.

According to some embodiments of the invention, the cushion block is of an integral structure.

According to some embodiments of the invention, the cushion block is an iron casting.

According to some embodiments of the invention, the cushion block comprises: a side fence formed in a cylindrical shape, the side fence having first and second opposite open ends, the first open end being formed as the second anchor hole, the side fence extending in a direction away from a central axis of the side fence in a direction from the first open end to the second open end; one end of the second convex pipe is connected with the first opened end, the other end of the second convex pipe extends towards the second opened end, and a second penetrating hole communicated with the first opened end is formed in the second convex pipe; and the second reinforcing rib is connected between the side coaming and the second convex pipe.

According to some embodiments of the invention, the side wall is formed as a circular truncated cone.

According to the utility model discloses device of second aspect embodiment includes: the tray assembly is the tray assembly in any one of the technical schemes; the anchor rod is arranged in the first anchor hole and the second anchor hole in a penetrating mode, and the anchor rod is locked in the first anchor hole through a nut.

Compared with the prior art, the method has the following advantages:

1. tray assembly in this application, simple structure, intensity is showing the improvement, struts effectually, and it is convenient to install, has effectively solved anchor rod and tray body intensity not enough and has caused the whole poor or the big, extravagant problem of consumptive material of construction work load of anchor rod in the current anchor bolt support. Simultaneously, compare in other with other technical scheme who improves tray body intensity, the tray subassembly in this application easily realizes, and with low costs.

2. The concave part on the tray body in this application is the round platform form, can improve tray body's overall structure intensity effectively, and intensity is far above the tray body of dish type, circular arc type saucer form, flat etc. under equal thickness, has solved the not enough problem that causes the crooked variant of tray body intensity, satisfies the intensity requirement of high-strength stock to tray body.

3. The concave part on the tray body in this application is round platform form, compares with the tray body of dish type, circular arc type saucer form, flat board etc. and has practiced thrift the material.

4. First anchor eye on the tray body in this application is round platform form, and the terminal surface and the first anchor eye inner wall looks adaptation of nut and first anchor eye contact have reduced the assembly degree of difficulty.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

figure 1 is an exploded view of a support device according to an embodiment of the present invention;

fig. 2 is a front view of a support device according to an embodiment of the present invention

FIG. 3 is a cross-sectional view taken along line A-A of the front view shown in FIG. 2;

figure 4 is a top view of a support device according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of the top view shown in FIG. 4;

fig. 6 is a top view of a tray assembly according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken along line C-C of the top view shown in FIG. 6;

FIG. 8 is a perspective view of the spacer in the tray assembly shown in FIG. 6;

FIG. 9 is a top view of the spacer shown in FIG. 8;

FIG. 10 is a cross-sectional view taken along line D-D of the top view shown in FIG. 9;

FIG. 11 is a cross-sectional view taken along line E-E of the top view shown in FIG. 9;

fig. 12 is a perspective view of a spacer according to further embodiments of the present invention;

fig. 13 is an exploded view of a support device according to further embodiments of the present invention.

Reference numerals:

100. a support device;

1. a tray assembly; 11. a tray body; 110. a groove part; 110a, a first anchor eye; 111. a first surface; 112. a second surface; 12. cushion blocks; 12a, a second anchor hole; 121. a substrate; 1211. flanging part; 122. a first male pipe; 1221. a first exit aperture; 123. a first reinforcing rib; 124. a second convex pipe; 1241. a second exit aperture; 125. side coaming plates; 126. a second reinforcing rib;

2. an anchor rod;

3. and a nut.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientation or positional relationship indicated in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A tray assembly 1 for a support device 100 according to an embodiment of the first aspect of the present invention according to an embodiment of the present invention is described below with reference to the accompanying drawings. The support device 100 may be used to support a coal mine excavation roadway, but is not limited thereto. In the following embodiments, the supporting device 100 is used for supporting a coal mine driving roadway as an example.

The support device 100 includes an anchor rod 2, a tray assembly 1, and a nut 3. The tray assembly 1 includes a tray body 11 and a spacer 12, wherein a groove portion 110 is formed on the tray body 11, and a first anchor hole 110a is formed on a groove bottom wall of the groove portion 110. The pad 12 is disposed in the groove portion 110, and a second anchor hole 12a corresponding to the first anchor hole 110a is formed in the pad 12.

Referring to fig. 1-3, the tray body 11 includes a first surface 111 and a second surface 112 disposed opposite to each other, at least a portion of the first surface 111 is recessed toward the second surface 112 to form a recessed portion 110, and a first anchor hole 110a is formed in a bottom wall of the recessed portion 110. The cross-sectional area of the first anchor hole 110a gradually decreases in the direction from the first surface 111 to the first surface 111. Illustratively, the first anchor hole 110a may be formed in a circular truncated cone shape. In some embodiments, the cross-sectional area of the recessed portion 110 gradually decreases in a direction from the first surface 111 toward the second surface 112. Illustratively, the groove portion 110 may be formed in a circular truncated cone shape.

The pad 12 is disposed in the groove portion 110, and a second anchor hole 12a corresponding to the first anchor hole 110a is formed in the pad 12. Referring to fig. 2-7, the pad 12 is entirely located within the groove 110. That is, the surface of the side of the pad 12 remote from the bottom wall of the groove may be lower than the notch of the groove portion 110, or the surface of the side of the pad 12 remote from the bottom wall of the groove may be flush with the notch of the groove portion 110.

During connection and installation, firstly, the anchor rod 2 is deeply inserted into surrounding rock, then the second anchor hole 12a on the cushion block 12 is sleeved on the anchor rod 2, then the first anchor hole 110a on the tray body 11 is sleeved on the anchor rod 2, the cushion block 12 is accommodated in the groove portion 110, the tray body 11 is in abutting fit with the outer surface of the surrounding rock, and finally the tray body 11 is locked on the anchor rod 2 through the nut 3.

Because the cushion block 12 is integrally located in the groove portion 110, the cushion block 12 can be prevented from contacting the surrounding rock, so that when the tray body 11 is deformed by stress, the stress is transmitted to the cushion block 12, and the stress is transmitted to the anchor rod 2 through the cushion block 12. Thereby increasing the load carrying capacity of the pallet assembly 1. In the tray assembly 1 of the present embodiment, when the compressive load reaches the test upper limit 530MPa, the entire structure is not changed.

According to the utility model discloses a tray component 1 for strutting arrangement 100 through set up cushion 12 in the concave part 110 of tray body 11, has greatly improved tray component 1's overall structure intensity to and tray component 1 bears the ability of load.

In some embodiments, referring to fig. 8, the pad 12 includes: a base plate 121, a first convex tube 122 and a first reinforcing rib 123. In the present embodiment, the substrate 121 is formed in a circular flat plate-shaped structure, the substrate 121 is opened with a second anchor hole 12a, and the second anchor hole 12a is a through hole penetrating through the thickness of the substrate 121. The base 121 has a flange 1211 formed around its outer periphery, and the flange 1211 is substantially perpendicular to the base 121. The first convex tube 122 is disposed at the second anchor hole 12a, and the first convex tube 122 and the flange 1211 are located on the same side of the base plate 121. A first penetration hole 1221 communicating with the second anchor hole 12a is formed in the first boss pipe 122. Alternatively, the first male pipe 122 is formed substantially as a hollow cylindrical pipe. The first reinforcing rib 123 is connected between the turn-up portion 1211 and the first boss pipe 122.

Optionally, referring to fig. 9 to 10, the first reinforcing rib 123 is provided in plurality, and the plurality of first reinforcing ribs 123 are arranged at intervals in the circumferential direction of the first protruding pipe 122. When the spacer 12 is assembled, the anchor rod 2 may be inserted into the first penetration hole 1221 through the second anchor hole 12a and then penetrated out of the first penetration hole 1221. The cushion block 12 in this embodiment has a simple structure and high structural strength, and is beneficial to improving the load bearing capacity of the tray assembly 1.

In the present application, the term "plurality" means two or more.

In some embodiments, the head block 12 is a unitary structure. That is, the spacer 12 is an integrally formed member. Illustratively, the spacer 12 is an iron casting. Therefore, the processing technology of the cushion block 12 can be simplified, and the overall structural strength of the cushion block 12 can be improved.

In other embodiments, referring to fig. 11 and 12, the mat 12 includes: a side coaming 125, a second convex tube 124 and a second reinforcing rib 126. The side wall plate 125 is formed in a cylindrical shape, the side wall plate 125 has a first open end and a second open end opposite to each other, the first open end is formed as the second anchor hole 12a, and the side wall plate 125 extends in a direction away from the center axis of the side wall plate 125 in a direction from the first open end to the second open end. Illustratively, the sideboards 125 are formed in a circular truncated cone shape. One end of the second convex tube 124 is connected to the first open end, and the other end extends toward the second open end, and a second penetration hole 1241 communicating with the first open end is formed in the second convex tube 124. A second reinforcing rib 126 is connected between the side wall panel 125 and the second boss tube 124.

When the spacer 12 is assembled, the anchor rod 2 can be inserted through the insertion hole to the second anchor hole 12a and out of the second anchor hole 12 a. The cushion blocks 12 in this embodiment are simple in structure and high in structural strength, and are beneficial to improving the load bearing capacity of the tray assembly 1.

Referring to fig. 13, a supporting device 100 according to a second aspect of the present invention includes: a tray assembly 1, anchor rods 2 and anchor rods 2. The tray component 1 is the tray component 1 in any one of the above technical solutions, the anchor rod 2 is arranged in the first anchor hole 110a and the second anchor hole 12a in a penetrating manner, and the anchor rod 2 is locked in the first anchor hole 110a through the nut 3.

During connection and installation, firstly, the anchor rod 2 is deeply inserted into surrounding rock, then the second anchor hole 12a on the cushion block 12 is sleeved on the anchor rod 2, then the first anchor hole 110a on the tray body 11 is sleeved on the anchor rod 2, the cushion block 12 is accommodated in the groove portion 110, the tray body 11 is in abutting fit with the outer surface of the surrounding rock, and finally the tray body 11 is locked on the anchor rod 2 through the nut 3. The anchor rod 2 passes through the second anchor hole 12a on the cushion block 12, the first anchor hole 110a on the pallet body 11 and the nut 3, and the stress point is transferred to the pallet assembly 1 and the nut 3, so that the load capacity of the supporting device 100 is greatly improved.

According to the utility model discloses tray component 1, through setting up the basis the utility model discloses the load-carrying capacity of strutting arrangement 100 has greatly been improved to the tray component 1 of the above-mentioned first aspect embodiment.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A tray assembly for use in ultra-high strength support, comprising:

the tray comprises a tray body, wherein a groove part is formed on the tray body, and a first anchor hole is formed in the bottom wall of the groove part;

the cushion block is integrally arranged in the groove portion, and a second anchor hole corresponding to the first anchor hole is formed in the cushion block.

2. The tray assembly for ultra-high strength support according to claim 1, wherein the groove portion is formed in a circular truncated cone shape.

3. A tray assembly for use in ultrahighbracing according to claim 1 or 2, wherein the spacer block comprises:

the base plate is provided with the second anchor hole, and the outer periphery of the base plate is provided with a flanging part;

the first convex pipe is arranged at the second anchor hole, a first penetrating hole communicated with the second anchor hole is formed in the first convex pipe, and the first convex pipe and the flanging part are positioned on the same side of the base plate;

and the first reinforcing rib is connected between the flanging part and the first convex pipe.

4. The tray assembly for ultra-high strength support according to claim 3, wherein the first reinforcing rib is provided in plurality, and the plurality of first reinforcing ribs are provided at intervals in the circumferential direction of the first flanged pipe.

5. The tray assembly for use in ultrahighbracing according to claim 3, wherein the spacer block is a unitary structure.

6. The tray assembly for ultra-high strength support according to claim 5, wherein the spacer blocks are iron castings.

7. A tray assembly for use in ultrahighbracing according to claim 1 or 2, wherein the spacer block comprises:

a side fence formed in a cylindrical shape, the side fence having first and second opposite open ends, the first open end being formed as the second anchor hole, the side fence extending in a direction away from a central axis of the side fence in a direction from the first open end to the second open end;

one end of the second convex pipe is connected with the first opened end, the other end of the second convex pipe extends towards the second opened end, and a second penetrating hole communicated with the first opened end is formed in the second convex pipe;

and the second reinforcing rib is connected between the side enclosing plate and the second convex pipe.

8. The tray assembly for ultra-high strength support according to claim 7, wherein the side wall plate is formed in a circular truncated cone shape.

9. An apparatus, comprising:

a tray assembly as claimed in any one of claims 1 to 8;

the anchor rod is arranged in the first anchor hole and the second anchor hole in a penetrating mode, and the anchor rod is locked in the first anchor hole through a nut.