CN213598000U - Tunnel excavation support forestope protection mechanism - Google Patents
Tunnel excavation support forestope protection mechanism Download PDFInfo
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- CN213598000U CN213598000U CN202022368707.1U CN202022368707U CN213598000U CN 213598000 U CN213598000 U CN 213598000U CN 202022368707 U CN202022368707 U CN 202022368707U CN 213598000 U CN213598000 U CN 213598000U
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Abstract
The utility model belongs to the technical field of the tunnelling support, concretely relates to tunnel tunnelling support forestope protection mechanism, including protection rack, jack and slide mechanism, protection rack connects on the flexible support in the front of tunnelling support, the both sides of protection rack all are equipped with slide mechanism, slide mechanism includes sliding sleeve and slide bar, and the sliding sleeve is fixed in the side of the flexible support in the front, and one end of slide bar articulates on protection rack, and the other end of slide bar and sliding sleeve sliding fit; the both sides of protection rack respectively articulate there is one the jack, and the jack is still kept away from with the slide bar the one end of protection rack is articulated. The application has lengthened the operation space through the forestope protection mechanism, has consequently avoided the flexible girder in both sides and entry driving machine big gun head to interfere.
Description
Technical Field
The utility model belongs to the technical field of the tunnelling support, concretely relates to tunnel tunnelling support forestope protection machanism.
Background
When the tunneling support is used, the interference phenomenon between a gun head of the tunneling machine and two telescopic girders of the tunneling support and the protection problems of two sides of the support can occur, and the safety and the efficiency of production are influenced.
Disclosure of Invention
In order to overcome the shortcoming of the prior art, the utility model provides a tunnel tunnelling support forestope protection machanism has lengthened the operation space through the forestope protection machanism, has consequently avoided the flexible girder in both sides to interfere with the entry driving machine big gun head.
The utility model discloses a realize through following technical scheme: a tunnel excavation support forepoling protection mechanism comprises a protection net rack, a jack and a slide way mechanism, wherein the protection net rack is connected to an upper front telescopic support of a tunnel excavation support, the slide way mechanism is arranged on each of two sides of the protection net rack, the slide way mechanism comprises a sliding sleeve and a sliding rod, the sliding sleeve is fixed on the side face of the upper front telescopic support, one end of the sliding rod is hinged to the protection net rack, and the other end of the sliding rod is in sliding fit with the sliding sleeve; the both sides of protection rack respectively articulate there is one the jack, and the jack is still kept away from with the slide bar the one end of protection rack is articulated.
Further, the protection rack includes rectangular pipe and bearing tie-beam, many the rectangular pipe connect into network structure through bearing the tie-beam.
Furthermore, guard rails are further arranged on two sides of the guard net rack.
Further, the slide bar is kept away from the one end of protection rack is equipped with the otic placode, the base and the otic placode of jack are articulated.
The utility model has the advantages that: when the heading machine is used for heading towards the front part, the up-down left-right swinging of the gun head can not interfere with the left and right telescopic girders of the bracket due to the reserved space of the front-detection protection mechanism, so that the production efficiency is greatly enhanced under the condition of ensuring the safety; the protective guards at the two ends of the protective net rack ensure that workers can prevent the rib stripping of the two sides during working.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial enlarged view of the present invention;
in the figure, the device comprises a protective net rack 1, a rectangular pipe 1-1, a bearing connecting beam 2, a jack 3, a slideway mechanism 3-1, a sliding sleeve 3-2, a sliding rod 32-1, an ear plate 4, a front upper telescopic support 5, a protective guard 6 and a telescopic girder.
Detailed Description
The invention will be further explained below with reference to the drawings and examples.
As shown in fig. 1 and 2, the roadway excavation support forward-exploring protection mechanism comprises a protection net rack 1, a jack 2 and a slide way mechanism 3, wherein the protection net rack 1 is connected to a front upper telescopic support 4 of the roadway excavation support, the slide way mechanisms 3 are arranged on two sides of the protection net rack 1, each slide way mechanism 3 comprises a sliding sleeve 3-1 and a sliding rod 3-2, the sliding sleeve 3-1 is fixed on the side surface of the front upper telescopic support 4, one end of the sliding rod 3-2 is hinged to the protection net rack 1, and the other end of the sliding rod 3-2 is in sliding fit with the sliding sleeve 3-1; the two sides of the protective net rack 1 are respectively hinged with one jack 2, and the jacks 2 are also hinged with one ends of the sliding rods 3-2 far away from the protective net rack 1; specifically, one end of the sliding rod 3-2, which is far away from the protective net rack 1, is provided with an ear plate 3-21, and the base of the jack 2 is hinged with the ear plate 3-21. The slideway mechanism 3 ensures that the jack 2 follows up when the protective net rack 1 moves up and down, and does not force the jack 2 to protect the jack 2. The side protection mechanism of the roadway tunneling support is arranged on the front side of the front detection protection mechanism.
Preferably, the protective net rack 1 comprises rectangular pipes 1-1 and bearing connecting beams 1-2, and a plurality of the rectangular pipes 1-1 are connected into a net structure through the bearing connecting beams 1-2. The bearing connecting beam 1-2 ensures the transmission of the force of the protective net rack 1 and ensures the transmission of the force when the upper part is pressed to protect the protective net rack 1.
As a modification of this embodiment, guard rails 5 are further disposed on both sides of the guard net rack 1. The guard rails 5 on both sides ensure the safety of the front workers.
When the heading machine is used for heading towards the front part, the up-down left-right swinging of the gun head can not interfere with the left and right telescopic girders of the bracket due to the reserved space of the front-detection protection mechanism, so that the production efficiency is greatly enhanced under the condition of ensuring the safety; the protective guards at the two ends of the protective net rack ensure that workers can prevent the rib stripping of the two sides during working.
Claims (4)
1. The utility model provides a tunnel tunnelling support forestope protection machanism which characterized in that: the tunnel excavation support comprises a protection net rack (1), a jack (2) and a slide mechanism (3), wherein the protection net rack (1) is connected to a front upper telescopic support (4) of a tunnel excavation support, the slide mechanism (3) is arranged on two sides of the protection net rack (1), the slide mechanism (3) comprises a sliding sleeve (3-1) and a sliding rod (3-2), the sliding sleeve (3-1) is fixed on the side surface of the front upper telescopic support (4), one end of the sliding rod (3-2) is hinged to the protection net rack (1), and the other end of the sliding rod (3-2) is in sliding fit with the sliding sleeve (3-1); the two sides of the protection net rack (1) are respectively hinged with one jack (2), and the jacks (2) are still far away from the sliding rods (3-2) and are hinged with one end of the protection net rack (1).
2. The tunneling support forward-exploring protection mechanism according to claim 1, characterized in that: the protective net rack (1) comprises rectangular pipes (1-1) and bearing connecting beams (1-2), and the rectangular pipes (1-1) are connected into a net structure through the bearing connecting beams (1-2).
3. The tunneling support forward-exploring protection mechanism according to claim 1, characterized in that: guard rails (5) are further arranged on two sides of the guard net rack (1).
4. The tunneling support forward-exploring protection mechanism according to claim 1, characterized in that: the slide bar (3-2) is kept away from one end of the protective net rack (1) and is provided with an ear plate (3-21), and the base of the jack (2) is hinged to the ear plate (3-21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022368707.1U CN213598000U (en) | 2020-10-22 | 2020-10-22 | Tunnel excavation support forestope protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022368707.1U CN213598000U (en) | 2020-10-22 | 2020-10-22 | Tunnel excavation support forestope protection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213598000U true CN213598000U (en) | 2021-07-02 |
Family
ID=76591789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022368707.1U Active CN213598000U (en) | 2020-10-22 | 2020-10-22 | Tunnel excavation support forestope protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213598000U (en) |
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2020
- 2020-10-22 CN CN202022368707.1U patent/CN213598000U/en active Active
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