CN215115592U - Anchor bolt support bearing capacity detection device - Google Patents
Anchor bolt support bearing capacity detection device Download PDFInfo
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- CN215115592U CN215115592U CN202121532853.1U CN202121532853U CN215115592U CN 215115592 U CN215115592 U CN 215115592U CN 202121532853 U CN202121532853 U CN 202121532853U CN 215115592 U CN215115592 U CN 215115592U
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- connecting plate
- reinforcing rib
- bearing capacity
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- lower connecting
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Abstract
The utility model relates to the technical field of coal industry anchor bolt support, in particular to a device for detecting bearing capacity of anchor bolt support, which comprises an upper connecting plate and a lower connecting plate which are arranged in parallel, wherein the upper connecting plate and the lower connecting plate are separated from each other by a certain distance in the vertical direction and are connected through a stud; an upper opening is formed in the upper connecting plate, and a lower opening is formed in the lower connecting plate and is in the same position with the axis of the upper opening; the lower opening is provided with a clamping bolt, the head of the clamping bolt is arranged above the lower connecting plate, and the screw rod part of the clamping bolt penetrates through the lower opening and extends downwards. By using the detection device of the utility model, a tension test is carried out by means of a tensile testing machine, and the maximum tension before the damage of the tray or the anchor rod is obtained, namely the bearing capacity of the anchor rod support; the whole structure is simple and convenient to operate and easy to install and maintain; and the whole structure is made of the section bar and the fastening piece, and the processing cost is low.
Description
Technical Field
The utility model relates to a coal industry stock support technical field, concretely relates to stock support bearing capacity detection device.
Background
The anchor bolt support is a reinforced support mode adopted in coal mining or rock deep foundation pit, and mainly comprises an anchor bolt, an anchoring agent, a tray and the like. In coal industry or ground field, the anchor bolt support use amount is great, belongs to the consumer, loses the supporting effect because of the fracture deformation easily in the anchor bolt support use, and whether one of the qualified standard of weighing anchor bolt support is anchor bolt support's bearing capacity, and anchor bolt support detection device need be used to the bearing capacity that detects anchor bolt support.
Chinese patent CN205719364U discloses a quick test device for anchor bolt support bearing capacity, which comprises a spring, an upper backing plate, a lower backing plate, an anchor bolt, a nut, a tray and a distance measuring instrument; the upper backing plate and the lower backing plate are in rectangular plate shapes, wherein a plurality of circular grooves which are arranged alternately are formed in one end face of the upper backing plate and the lower backing plate, circular holes are formed in the centers of the upper backing plate and the lower backing plate, and anchor rods can penetrate through the holes; the springs are arranged in the grooves of the upper backing plate and the lower backing plate at intervals and are positioned between the upper backing plate and the lower backing plate, the springs are bonded together through a strong adhesive to form a combined plate, the combined plate is gradually flattened along with the increase of the load borne by the spring group, and the load borne by the spring group and the generated displacement have a monotone increasing relationship; according to the compression characteristic of the spring group material, the measurement of the load is converted into the measurement of the displacement by utilizing the determined relation between the load and the deformation of the spring group material, and then the axial bearing capacity of the anchor rod is obtained. The structure enables the axial force measurement of the anchor rod to be simple and easy, and greatly reduces the measurement cost.
Above-mentioned stock support bearing capacity quick testing arrangement among the prior art calculates stock support's bearing capacity through the deflection of distance measuring instrument measurement stock, and measuring result easily receives external environment's influence to distance measuring instrument's precision also can influence measuring result, and overall structure operates inconveniently.
Therefore, the utility model discloses provide the improvement on prior art's basis, provide a simple structure, convenient operation's anchor bolt support bearing capacity detection device.
SUMMERY OF THE UTILITY MODEL
In view of the technical problem, the utility model provides a bolting bearing capacity detection device, technical scheme is as follows:
the anchor bolt support bearing capacity detection device comprises an upper connecting plate and a lower connecting plate which are arranged in parallel, wherein the upper connecting plate and the lower connecting plate are separated by a certain distance in the vertical direction, and the upper connecting plate and the lower connecting plate are connected through a double-end stud; an upper opening is formed in the upper connecting plate, and a lower opening is formed in the lower connecting plate and is in the same position with the axis of the upper opening; the lower opening is provided with a clamping bolt, the head of the clamping bolt is arranged above the lower connecting plate, and the screw rod part of the clamping bolt penetrates through the lower opening and extends downwards.
Further, a sleeve penetrates through the part, between the upper connecting plate and the lower connecting plate, of the stud, the upper end face of the sleeve is in contact with the upper connecting plate, and the lower end face of the sleeve is in contact with the lower connecting plate.
Furthermore, the upper connecting plate comprises an upper base plate, a first reinforcing rib, a second reinforcing rib and a third reinforcing rib, the base plate is made of a steel plate, the first reinforcing rib is arranged on one side of the upper base plate, and the first reinforcing rib is made of channel steel; the second reinforcing rib is arranged around the upper opening, and the second reinforcing rib is made of an annular thick-walled steel pipe; the third reinforcing rib is arranged between the two first reinforcing ribs and is made of channel steel.
Further, the lower connecting plate comprises a lower base plate, a fourth reinforcing rib and a fifth reinforcing rib, the lower base plate is made of a steel plate, the fourth reinforcing rib is arranged on one side of the lower base plate, and the fourth reinforcing rib is made of channel steel; the fifth strengthening ribs are arranged between the two fourth strengthening ribs and are made of channel steel.
Further, the bearing capacity of the stud bolt is larger than that of the anchor bolt support.
Further, the distance between the upper connecting plate and the lower connecting plate in the vertical direction is 200-300 mm.
Further, the clamping bolt is an M36 bolt.
The utility model has the advantages that:
1. the utility model is provided with an upper connecting plate and a lower connecting plate, wherein the upper connecting plate is provided with an upper opening, a tray is arranged below the upper connecting plate, and an anchor rod passes through the tray and extends upwards from the upper opening; a clamping bolt is arranged on the lower connecting plate, and an upper jaw of the tensile machine clamps the anchor rod; the lower jaw clamps the clamping bolt, and a tension test is carried out to obtain the maximum tension before the tray or the anchor rod is damaged, namely the bearing capacity of the anchor rod support; the whole structure is simple and convenient to operate and easy to install and maintain.
2. The upper connecting plate is made of steel plates, channel steel and steel pipes, and the lower connecting plate is made of steel plates and channel steel; the detection device has high strength and long service life; and the upper and lower connecting plates have the same shape, the steel plates, the channel steel and the steel pipes have the same specification, the purchase is easy, the processing amount is small, and the processing cost is low.
Drawings
Fig. 1 is the utility model provides a bolting supporting bearing capacity detection device's schematic structure diagram.
Fig. 2 is a front view of the upper connecting plate.
Fig. 3 is a sectional view taken along a-a in fig. 2.
Fig. 4 is a sectional view taken in the direction B-B in fig. 2.
Fig. 5 is a front view of the lower connecting plate.
Fig. 6 is a sectional view taken along the direction C-C in fig. 5.
Fig. 7 is a sectional view taken in the direction D-D in fig. 5.
In the figure, 1, an upper connecting plate, 2, a lower connecting plate, 3, a stud, 4, a clamping bolt, 5, a sleeve, 101, an upper base plate, 102, a first reinforcing rib, 103, a second reinforcing rib, 104, a third reinforcing rib, 201, a lower base plate, 202, a fourth reinforcing rib, 203, a fifth reinforcing rib, 6, a tray, 7 and an anchor rod.
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. 1-7, the utility model provides a device for detecting the bearing capacity of a bolting support, which comprises an upper connecting plate 1 and a lower connecting plate 2 which are arranged in parallel, wherein the upper connecting plate 1 and the lower connecting plate 2 are both rectangular, and the upper connecting plate 1 and the lower connecting plate 2 have equal size and are arranged in parallel in a vertical direction in an overlapping manner; the distance between the upper connecting plate 1 and the lower connecting plate 2 in the vertical direction is 200mm-300mm, and the upper connecting plate 1 and the lower connecting plate 2 are connected through studs 3 uniformly arranged at four corners; a circular upper opening is formed in the upper connecting plate 1, and a circular lower opening is formed in the lower connecting plate 2 at the same position as the axis of the upper opening; and a clamping bolt 4 with the specification of M36 is arranged at the lower opening, the head of the clamping bolt 4 is arranged above the lower connecting plate 2, and the screw part of the clamping bolt 4 extends downwards through the lower opening.
A sleeve 5 penetrates through the part, between the upper connecting plate 1 and the lower connecting plate 2, of the stud 3, the upper end face of the sleeve 5 is in contact with the upper connecting plate 1, and the lower end face of the sleeve 5 is in contact with the lower connecting plate 2; the sleeve 5 may be replaced by a spring for keeping a certain distance between the upper connecting plate 1 and the lower connecting plate 2.
The upper connecting plate 1 comprises an upper base plate 101, a first reinforcing rib 102, a second reinforcing rib 103 and a third reinforcing rib 104, wherein the base plate 101 is made of a steel plate, the first reinforcing rib 102 is arranged on one side of the upper base plate 101, and the first reinforcing rib 102 is made of channel steel; the second reinforcing bead 103 is provided around the upper opening, the second reinforcing bead 103 being made of an annular thick-walled steel pipe; the third reinforcing bead 104 is disposed between the two first reinforcing beads 102, and the third reinforcing bead 104 is made of a channel steel.
The lower connecting plate 2 comprises a lower substrate 201, a fourth reinforcing rib 202 and a fifth reinforcing rib 203, wherein the lower substrate 201 is made of a steel plate, the fourth reinforcing rib 202 is arranged on one side of the lower substrate 201, and the fourth reinforcing rib 202 is made of channel steel; the fifth reinforcing rib 203 is disposed between the fourth reinforcing ribs 202, and the fifth reinforcing rib 203 is made of channel steel.
The bearing capacity, namely tensile strength, of the stud bolt 3 is greater than the bearing capacity of the anchor bolt support.
The utility model discloses an application method does: the anchor rod 7 penetrates through the upper opening to extend upwards, the test is carried out by means of a tensile testing machine with the specification of 1000KN, the anchor rod 7 is clamped on an upper jaw of the tensile testing machine, and the clamping bolt 4 is clamped on a lower jaw of the tensile testing machine. In the tensile test process, the anchor rod 7 moves upwards, the clamping bolt 4 moves downwards, the tray 6 is in close contact with the upper connecting plate 1, and the test process is carried out until the tray 6 is torn or the anchor rod 7 is broken. And the loading speed is controlled within the range of 10-20 KN/min during testing. And (3) obtaining a stress-strain curve from the tensile testing machine, and obtaining the maximum tensile force before the damage of the tray 6 or the anchor rod 7, namely the bearing capacity of the anchor rod support.
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 bolting-down bearing capacity detection device, includes parallel arrangement's upper junction plate and lower connecting plate, the upper junction plate with the connecting plate is at a certain distance away at the vertical direction down, its characterized in that: the upper connecting plate is connected with the lower connecting plate through a double-end stud; an upper opening is formed in the upper connecting plate, and a lower opening is formed in the lower connecting plate and is in the same position with the axis of the upper opening; the lower opening is provided with a clamping bolt, the head of the clamping bolt is arranged above the lower connecting plate, and the screw rod part of the clamping bolt penetrates through the lower opening and extends downwards.
2. The bolting bearing capacity detecting device according to claim 1, wherein: the double-end stud is characterized in that a sleeve penetrates through the part between the upper connecting plate and the lower connecting plate, the upper end face of the sleeve is in contact with the upper connecting plate, and the lower end face of the sleeve is in contact with the lower connecting plate.
3. The bolting bearing capacity detecting device according to claim 1, wherein: the upper connecting plate comprises an upper base plate, a first reinforcing rib, a second reinforcing rib and a third reinforcing rib, the base plate is made of a steel plate, the first reinforcing rib is arranged on one side of the upper base plate, and the first reinforcing rib is made of channel steel; the second reinforcing rib is arranged around the upper opening, and the second reinforcing rib is made of an annular thick-walled steel pipe; the third reinforcing rib is arranged between the two first reinforcing ribs and is made of channel steel.
4. A bolting support load-carrying capacity detection device according to any of claims 1-3, characterised in that: the lower connecting plate comprises a lower base plate, a fourth reinforcing rib and a fifth reinforcing rib, the lower base plate is made of a steel plate, the fourth reinforcing rib is arranged on one side of the lower base plate, and the fourth reinforcing rib is made of channel steel; the fifth strengthening ribs are arranged between the two fourth strengthening ribs and are made of channel steel.
5. The bolting bearing capacity detecting device according to claim 1, wherein: the bearing capacity of the stud is larger than that of the anchor bolt support.
6. The bolting bearing capacity detecting device according to claim 1, wherein: the distance between the upper connecting plate and the lower connecting plate in the vertical direction is 200-300 mm.
7. The bolting bearing capacity detecting device according to claim 1, wherein: the clamping bolt is an M36 bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121532853.1U CN215115592U (en) | 2021-07-06 | 2021-07-06 | Anchor bolt support bearing capacity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121532853.1U CN215115592U (en) | 2021-07-06 | 2021-07-06 | Anchor bolt support bearing capacity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215115592U true CN215115592U (en) | 2021-12-10 |
Family
ID=79314399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121532853.1U Active CN215115592U (en) | 2021-07-06 | 2021-07-06 | Anchor bolt support bearing capacity detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215115592U (en) |
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2021
- 2021-07-06 CN CN202121532853.1U patent/CN215115592U/en active Active
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