CN210768864U - Telescopic steel belt - Google Patents
Telescopic steel belt Download PDFInfo
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- CN210768864U CN210768864U CN201921813405.1U CN201921813405U CN210768864U CN 210768864 U CN210768864 U CN 210768864U CN 201921813405 U CN201921813405 U CN 201921813405U CN 210768864 U CN210768864 U CN 210768864U
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- waist
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- shaped
- shaped holes
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Abstract
The utility model discloses a telescopic steel belt, which comprises a steel belt, wherein two ends of the steel belt are provided with a first fixing hole and a second fixing hole; the second fixing hole is detachably connected with the fixing hole of the first mounting lug; the first mounting lug is fixedly connected with the first end of the first mounting belt; the first mounting belt is attached to the second mounting belt and detachably connected with the second mounting belt; a second mounting lug is fixed at the first end of the second mounting belt; the second mounting lug is also provided with a fixing hole; a plurality of groups of waist-shaped holes which are identical and have sequentially linearly increased angles are arranged from the second ends of the first mounting belt and the second mounting belt, and every two groups of waist-shaped holes are connected by a connecting plate. Has the advantages that: the telescopic steel belt is convenient to install, more suitable for geological change, convenient to check and the like by a tangent fixing mode.
Description
Technical Field
The utility model relates to a mine field, concretely relates to scalable steel band.
Background
The mining steel belt is an important component of anchor bolt support, the steel belt is inserted into the anchor bolt after the anchor bolt (cable) is installed, the steel belt is tightly attached to the surface of the surrounding rock, then the tray is installed, and finally the lockset is installed and tightened, so that the whole surrounding rock support is realized. Therefore, the steel strip plays a great role in bolting.
The steel belt applies a certain torque to the nut to enable the supporting plate to be tightly pressed on the surface of the roadway, provides prestress for the anchor rod, and enables the prestress to be diffused into the coal-rock mass around the anchor rod, so that the stress state of the surrounding rock is improved, the slip of a surrounding rock separation layer, the sliding of a structural surface and the opening of joint cracks are inhibited, and the active and timely supporting effect of the anchor rod is realized; the surrounding rock is out of shape and makes the load act on the steel band, transmits the load to tray and the stock body of rod through the steel band, increases the working resistance of stock, full play stock control surrounding rock is out of shape the effect. The steel belt can support the roadway surface and improve the stress state of the surrounding rock under the action of anchor rod prestress and working resistance diffusion, the stress of the anchor rod is balanced, the integral supporting of the surrounding rock is improved, and the tray is arranged on the steel belt to realize the function of fixing the steel belt.
Because underground mining geological conditions are complicated and changeable, roadway anchor rod support is changed along with the geological conditions, and in roadway chamber construction, the length of a steel belt is complicated and changeable, in anchor rod (cable) support, the length of the steel belt is often required to be complicated and changeable due to different distances between anchor rods (cables), and due to the fact that the anchor rods (cables) are influenced by mine pressure, the anchor rods (cables) are easy to stretch and shear damage and other conditions, the anchor rods (cables) need to be timely repaired, the required length of the steel belt is generally short, the steel belt needs to be machined just after being drilled, construction needs are met, time and labor are wasted in the operation process, and the working efficiency is influenced.
Aiming at the current situation that the length of a steel belt is complex and variable, in order to meet the requirement of efficient support and improve the working efficiency, a steel belt is necessary to be designed, on one hand, the construction efficiency is improved, and on the other hand, the production requirements under various construction conditions are met.
SUMMERY OF THE UTILITY MODEL
In order to solve the random length between the stock and lead to the steel band to cut the difficulty to and the steel band easily receives tensile fracture's problem, the utility model provides a scalable steel band.
In order to achieve the above object, the utility model adopts the following technical scheme:
a telescopic steel belt comprises a steel belt, wherein two ends of the steel belt are provided with a first fixing hole and a second fixing hole; the second fixing hole is detachably connected with the fixing port of the first mounting lug; the first mounting lug is fixedly connected with the first end of the first mounting belt; the first mounting belt is attached to the second mounting belt and detachably connected with the second mounting belt; a second mounting lug is fixed at the first end of the second mounting belt; the second mounting lug is also provided with a fixing port; a plurality of groups of identical and sequentially linearly increased angle waist-shaped holes are respectively arranged from the second ends of the first mounting belt and the second mounting belt, and each two groups of waist-shaped holes are connected by a connecting plate; the waist-shaped holes of the first mounting belt and the second mounting belt are detachably connected through bolts; the waist-shaped holes with sequentially linearly increasing angles on the first mounting belt comprise: the first waist-shaped hole, the second waist-shaped hole, the third waist-shaped hole and the fourth waist-shaped hole are formed in the first plate; the waist-shaped hole with the angle increasing linearly in sequence on the second mounting belt comprises: the first waist-shaped hole, the second waist-shaped hole, the third waist-shaped hole and the fourth waist-shaped hole.
Further, the length of each connecting plate is the average value of the lengths of the two adjacent waist-shaped holes.
Further, each group of the waist-shaped holes comprises 2 to 3 strip-shaped waist-shaped holes.
Compared with the prior art, the utility model discloses following beneficial effect has: the telescopic steel belt is convenient to install, more suitable for geological change, convenient to check and the like by a tangent fixing mode.
Drawings
FIG. 1 is a schematic view of the connection between the present invention and a steel belt;
FIG. 2 is a schematic view of a first mounting strap of the present invention;
FIG. 3 is a schematic view of a second mounting strap of the present invention;
fig. 4 is an assembly view of the first mounting strap of fig. 2 and the second mounting strap of fig. 3.
In the figure, 1 steel strip, 11 first fixing holes, 12 second fixing holes, 2 first mounting lugs, 3 first mounting strips, 31 first waist-shaped holes, 32 second waist-shaped holes, 33 third waist-shaped holes, 34 fourth waist-shaped holes, 4 second mounting lugs, 5 second mounting strips, 51I waist-shaped holes, 52 II waist-shaped holes, 53 III waist-shaped holes, 54 IV waist-shaped holes, 6 mounting holes, 7 connecting plates and 8 bolts.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 2, 3 and 4, the telescopic steel strip comprises a steel strip 1, and both ends of the steel strip 1 are provided with a first fixing hole 11 and a second fixing hole 12. The first fixing hole 11 is sleeved on an anchor rod, and the second fixing hole 12 is detachably connected with the fixing port of the first mounting lug 2, and can be specifically connected by a bolt.
The first mounting lug 2 is fixedly connected with a first end of a first mounting belt 3; the first mounting belt 3 is attached to the second mounting belt 5 and is detachably connected with the second mounting belt; the first mounting band 3 and the second mounting band 5 are connected by bolts. In the connection, as shown in fig. 4, a bolt 8 may be inserted into a through hole penetrating each other in the first mounting band 3 and the second mounting band 5. A first end of the second mounting belt 5 is fixed with a second mounting lug 4; the second mounting lug 4 is also provided with a fixing port; a plurality of groups of identical and sequentially linearly increased angle waist-shaped holes are arranged from the second ends of the first mounting belt 3 and the second mounting belt 5, and each two groups of waist-shaped holes are connected by a connecting plate 7; each group of the strip-shaped waist-shaped holes comprises 2 to 3 strip-shaped waist-shaped holes. Wherein, the waist shape hole that angle linear increase in proper order includes on first installation area 3: a first kidney shaped aperture 31, a second kidney shaped aperture 32, a third kidney shaped aperture 33 and a fourth kidney shaped aperture 34. The waist-shaped holes with sequentially linearly increasing angles on the second mounting strip 5 comprise: the first 51, second 52, third 53 and fourth 54 kidney shaped apertures.
In order to ensure the firmness of the connection between the slotted holes of each group, the length of each connecting plate 7 is the average value of the lengths of the two adjacent slotted holes.
As shown in fig. 4, the waist-shaped holes of the first and second mounting strips 3 and 5 have different inclination angles, so that the mutual shearing force can be used for good connection.
The advantages of this connection are: the installation master on site can not need the very accurate distance between two anchor rods, only needs a proper range, and the specific connecting position can be determined by the through hole on the first installation belt 3 and the second installation belt 5 after the long waist-shaped holes are intersected. Meanwhile, the adjustable steel belt can help workers to adjust the steel belt according to actual conditions, and the applicability and usability of the steel belt are greatly improved.
And (II) because the long waist-shaped hole structure has the sliding characteristic, when the anchor rods are subjected to geological change, the distance between the anchor rods is lengthened or shortened, and the bolts can still slide in the long waist-shaped holes. Therefore, the defect that the traditional steel belt is easy to break after being subjected to geological changes is overcome.
And in the routine inspection of the safety of the anchor rod, an inspector can judge whether the geological change occurs in the anchor rod only by checking whether the first mounting belt 3 and the second mounting belt 5 deform, and meanwhile, when repairing, only the damaged first mounting belt 3 and/or the damaged second mounting belt 5 are replaced, so that the workload of replacing the steel belt 1 is reduced.
Claims (3)
1. A telescopic steel belt comprises a steel belt (1), wherein a first fixing hole (11) and a second fixing hole (12) are formed in two ends of the steel belt (1); the method is characterized in that:
the second fixing hole (12) is detachably connected with a fixing port of the first mounting lug (2); the first mounting lug (2) is fixedly connected with the first end of the first mounting belt (3); the first mounting belt (3) is attached to the second mounting belt (5) and is detachably connected with the second mounting belt; a second mounting lug (4) is fixed at the first end of the second mounting belt (5); the second mounting lug (4) is also provided with a fixing opening;
a plurality of groups of identical and sequentially linearly increased angle waist-shaped holes are respectively arranged from the second ends of the first mounting belt (3) and the second mounting belt (5), and each two groups of waist-shaped holes are connected by a connecting plate (7); the waist-shaped holes of the first mounting belt (3) and the second mounting belt (5) are detachably connected through bolts (8);
the waist-shaped holes with sequentially linearly increasing angles on the first mounting strip (3) comprise: a first waist-shaped hole (31), a second waist-shaped hole (32), a third waist-shaped hole (33) and a fourth waist-shaped hole (34);
the waist-shaped holes with the angles increasing linearly in sequence on the second mounting strip (5) comprise: the first waist-shaped hole (51), the second waist-shaped hole (52), the third waist-shaped hole (53) and the fourth waist-shaped hole (54).
2. The retractable steel strip as claimed in claim 1, wherein: the length of each connecting plate (7) is the average value of the lengths of two adjacent waist-shaped holes.
3. The retractable steel strip as claimed in claim 1, wherein: each group of the waist-shaped holes comprises 2 to 3 strip-shaped waist-shaped holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921813405.1U CN210768864U (en) | 2019-10-25 | 2019-10-25 | Telescopic steel belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921813405.1U CN210768864U (en) | 2019-10-25 | 2019-10-25 | Telescopic steel belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210768864U true CN210768864U (en) | 2020-06-16 |
Family
ID=71038112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921813405.1U Active CN210768864U (en) | 2019-10-25 | 2019-10-25 | Telescopic steel belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210768864U (en) |
-
2019
- 2019-10-25 CN CN201921813405.1U patent/CN210768864U/en active Active
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