A head-on protection device
By designing a hydraulically driven head-on protection device, the problems of frequent, time-consuming and dangerous traditional artificial scaffolding hanging nets during the construction process of coal mines are solved, and a fast and safe head-on protection net is achieved, reducing workers' labor Strength and production costs improve operational safety.
Patent Information
- Application Number
- CN201810962936.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-08-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2038-08-22
AI Technical Summary
During the underground construction of coal mines, the traditional method of artificial scaffolding hanging net anchoring is frequent, time-consuming and dangerous, which can easily lead to collapse of coal walls and cause casualties. It may also cause secondary collapse when the net is withdrawn after the drilling is completed. Impacts job safety.
Design a mechanical device including a fixed seat, a rotary oil cylinder, a rotary seat, a support cylinder, a telescopic arm, and an adjustment cylinder and a net protection device. It can quickly expand and retract and release through hydraulic operations, assist in manual installation of the net, and reduce manual construction of scaffolding. The work of the oil cylinder is expanded and retracted to enable the protective screen device to reach different positions to protect the coal wall.
A fast and safe front-line protection network has been achieved, which reduces the labor intensity and production costs of workers, reduces the risk of injury caused by the collapse of coal walls, and improves work efficiency and safety.
Smart Images
Figure CN108915739B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of underground coal mine development equipment, and specifically relates to a head protection device, which is suitable for carrying out head protection nets in underground coal mine tunnels to achieve the purpose of protecting the head. Background Art
[0002] In domestic coal mines, when constructing head water exploration holes, anti-burst holes, prediction holes and gas extraction holes, the traditional manual scaffolding method of hanging nets and anchoring the head is mostly used. According to the coal mine process requirements, this traditional operation method is not only high in construction frequency, time-consuming and labor-intensive, but also extremely dangerous. First, when fixing the scaffolding in front of the head coal wall, without protective measures, the collapsed coal blocks are very likely to cause casualties; secondly, during the process of manual hanging nets and anchoring, the loose head coal wall will collapse, threatening the life safety of the operators; finally, after the drilling operation is completed, the anchor net needs to be removed manually, and the head coal wall is very likely to collapse for the second time, causing secondary injuries to the operators. In summary, the traditional construction process is complicated and takes a long time to construct. In the construction process, the head coal wall of the working face often collapses, causing injuries, which seriously affects the personal safety of the operators. Summary of the invention
[0003] The purpose of the present invention is to provide a mechanical device suitable for protecting the head of a coal mine.
[0004] The technical solution adopted by the present invention to solve the above problems is:
[0005] A head-on protection device comprises a fixed seat, a slewing oil cylinder, a slewing seat, a supporting oil cylinder, a telescopic arm, an adjusting oil cylinder and a protective net device; the fixed seat is hingedly connected to the slewing seat, one end of the slewing oil cylinder is hingedly connected to the fixed seat, and the other end is hingedly connected to the slewing seat, and the slewing oil cylinder is telescopically connected to push the slewing seat to rotate around the fixed seat in the horizontal direction; one end of the telescopic arm is hingedly connected to the slewing seat, and the other end is hingedly connected to the protective net device, one end of the supporting oil cylinder is hingedly connected to the slewing seat, and the other end is hingedly connected to the telescopic arm, and the supporting oil cylinder is telescopically connected to push the telescopic arm to rotate around the slewing seat in the vertical direction; one end of the adjusting oil cylinder is hingedly connected to the telescopic arm, and the other end is hingedly connected to the protective net device, and the adjusting oil cylinder is telescopically connected to push the protective net device to rotate around the telescopic arm in the vertical direction;
[0006] The telescopic arm is composed of an outer arm, a telescopic cylinder and an inner arm; the inner arm is arranged in the inner cavity of the outer arm, the telescopic cylinder is arranged in the inner cavity of the inner arm, and one end of the telescopic cylinder is hinged to the outer arm, and the other end is hinged to the inner arm; the telescopic cylinder is extended and retracted to push the inner arm to extend and retract.
[0007] The protective net device is composed of a blocking beam, a blocking beam cylinder, a supporting beam, a No. I protective net cylinder, a small protective net, a No. II protective net cylinder, and a large protective net; the blocking beam and the small protective net are respectively arranged on the left and right sides of the supporting beam and are respectively hinged to the supporting beam; one end of the blocking beam cylinder is hinged to the blocking beam, and the other end is hinged to the supporting beam, and the blocking beam cylinder is telescopic to drive the blocking beam to rotate; one end of the No. I protective net cylinder is hinged to the supporting beam, and the other end is hinged to the small protective net, and the No. I protective net cylinder is telescopic to drive the small protective net to rotate; the large protective net is arranged at the other end of the small protective net and is hinged to the small protective net, one end of the No. II protective net cylinder is hinged to the large protective net, and the other end is hinged to the small protective net, and the No. II protective net cylinder is telescopic to drive the large protective net to rotate;
[0008] The support beam is composed of a vertical beam, a supporting cylinder and a top beam; the top beam is arranged in the inner cavity of the vertical beam, the supporting cylinder is arranged in the inner cavity of the top beam, and one end of the supporting cylinder is hinged to the vertical beam, and the other end is hinged to the top beam; the extension and retraction of the supporting cylinder pushes the top beam to extend and retract.
[0009] The present invention adopts the above technical scheme, which can realize rapid deployment of sealing protection, and can be freely retracted and released within the effective use space. The deployed width can meet the use requirements of a certain lane width, and the minimum state after retraction is small, which does not affect the normal operation of other equipment. The present invention drives the net protection device forward through the telescopic oil cylinder, so that the net protection device reaches the working position, adjusts the cylinder telescopic, and assists the beam blocking cylinder, the net protection cylinder and the supporting cylinder to move, so as to better meet the head-on net protection conditions. The head-on protection device of the present invention enables the net protection device to reach various different positions through the cylinder telescopic, and assists in manually completing the head-on net hanging to achieve the function of protecting the head, eliminating the tedious labor of manually building scaffolding. The full hydraulic operation reduces the labor intensity of the workers and avoids the danger of workers working on the top of the empty roof. Its main actions include: outward rotation and up and down lifting of the net protection device, front and rear telescopic extension of the net protection device by 0 to 2000 mm, up and down adjustment of the net protection device, rotation of large and small nets and beams, and up and down telescopic extension of the top beam by 0 to 1200 mm.
[0010] Compared with the prior art, the present invention has the following significant advantages:
[0011] 1. Mechanization - It replaces the original manual construction of scaffolding and net protection, liberates the heavy manual labor, and effectively reduces production costs on the basis of reducing workers' labor intensity and improving work efficiency.
[0012] 2. Safety - It replaces manual hanging of nets and drilling, avoids long-term manual empty-top operations, and reduces the chance of injury caused by coal wall collapse.
[0013] In conclusion, the drilling vehicle of the present invention changes the existing coal mine head protection production process and operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1It is a schematic diagram of the structure of the present invention;
[0015] Figure 2 It is a structural schematic diagram of the telescopic arm of the present invention;
[0016] Figure 3 It is a structural schematic diagram of the net protection device of the present invention
[0017] Figure 4 It is a structural schematic diagram of the support beam of the present invention; DETAILED DESCRIPTION
[0018] like Figure 1 As shown, a head-on protection device described in this embodiment includes a fixed seat 1, a rotary cylinder 2, a rotary seat 3, a supporting cylinder 4, a telescopic arm 5, an adjusting cylinder 6, and a protective net device 7; the fixed seat 1 is hingedly connected to the rotary seat 3, one end of the rotary cylinder 2 is hinged to the fixed seat 1, and the other end is hinged to the rotary seat 3, and the rotary cylinder 2 is telescopic to push the rotary seat 3 to rotate around the fixed seat 1 in the horizontal direction; one end of the telescopic arm 5 is hinged to the rotary seat 3, and the other end is hinged to the protective net device 7, one end of the supporting cylinder 4 is hinged to the rotary seat 3, and the other end is hinged to the telescopic arm 5, and the supporting cylinder 4 is telescopic to push the telescopic arm 5 to rotate around the rotary seat 3 in the vertical direction; one end of the adjusting cylinder 6 is hinged to the telescopic arm 5, and the other end is hinged to the protective net device 7, and the adjusting cylinder 6 is telescopic to push the protective net device 7 to rotate around the telescopic arm 5 in the vertical direction;
[0019] like Figure 2 As shown, the telescopic arm 5 is composed of an outer arm 5-1, a telescopic cylinder 5-2, and an inner arm 5-3; the inner arm 5-3 is arranged in the inner cavity of the outer arm 5-1, the telescopic cylinder 5-2 is arranged in the inner cavity of the inner arm 5-3, and one end of the telescopic cylinder 5-2 is hinged to the outer arm 5-1, and the other end is hinged to the inner arm 5-3; the telescopic cylinder 5-2 is telescopic to push the inner arm 5-3 to telescope.
[0020] like Figure 3As shown, the net protection device 7 is composed of a blocking beam 7-1, a blocking beam cylinder 7-2, a supporting beam 7-3, a No. I net protection cylinder 7-4, a small net protection 7-5, a No. II net protection cylinder 7-6, and a large net protection 7-7; the blocking beam 7-1 and the small net protection 7-5 are respectively arranged on the left and right sides of the supporting beam 7-3 and are respectively hinged to the supporting beam 7-3; one end of the blocking beam cylinder 7-2 is hinged to the blocking beam 7-1, and the other end is hinged to the supporting beam 7-3, and the blocking beam cylinder 7-2 is retractable Push the blocking beam 7-1 to rotate; one end of the No. I net protection cylinder 7-4 is hinged to the support beam 7-3, and the other end is hinged to the small net protection 7-5. The No. I net protection cylinder 7-4 is telescopic to push the small net protection 7-5 to rotate; the large net protection 7-7 is arranged at the other end of the small net protection 7-5 and is hinged to the small net protection 7-5. One end of the No. II net protection cylinder 7-6 is hinged to the large net protection 7-7, and the other end is hinged to the small net protection 7-5. The No. II net protection cylinder 7-6 is telescopic to push the large net protection 7-7 to rotate;
[0021] like Figure 4 As shown, the support beam 7-3 is composed of a vertical beam 7-3-1, a supporting cylinder 7-3-2 and a top beam 7-3-3; the top beam 7-3-3 is arranged in the inner cavity of the vertical beam 7-3-1, the supporting cylinder 7-3-2 is arranged in the inner cavity of the top beam 7-3-3, and one end of the supporting cylinder 7-3-2 is hinged to the vertical beam 7-3-1, and the other end is hinged to the top beam 7-3-3; the supporting cylinder 7-3-2 is extended and retracted to push the top beam 7-3-3 to extend and retract.
Claims
1. A head-on protection device, characterized in that: The invention comprises a fixed seat (1), a rotary oil cylinder (2), a rotary seat (3), a supporting oil cylinder (4), a telescopic arm (5), an adjusting oil cylinder (6), and a net protection device (7); the fixed seat (1) is hingedly connected to the rotary seat (3); one end of the rotary oil cylinder (2) is hingedly connected to the fixed seat (1) and the other end is hingedly connected to the rotary seat (3); the rotary oil cylinder (2) is telescopically connected to push the rotary seat (3) to rotate around the fixed seat (1) in a horizontal direction; one end of the telescopic arm (5) is hingedly connected to the rotary seat (3); The seat (3) is hinged, and the other end is hinged to the net protection device (7); one end of the supporting oil cylinder (4) is hinged to the slewing seat (3), and the other end is hinged to the telescopic arm (5); the supporting oil cylinder (4) is telescopic to push the telescopic arm (5) to rotate around the slewing seat (3) in the vertical direction; one end of the adjusting oil cylinder (6) is hinged to the telescopic arm (5), and the other end is hinged to the net protection device (7); the adjusting oil cylinder (6) is telescopic to push the net protection device (7) to rotate around the telescopic arm (5) in the vertical direction; The net protection device (7) is composed of a blocking beam (7-1), a blocking beam oil cylinder (7-2), a support beam (7-3), a No. I net protection oil cylinder (7-4), a small net protection (7-5), a No. II net protection oil cylinder (7-6), and a large net protection (7-7); the blocking beam (7-1) and the small net protection (7-5) are respectively arranged on the left and right sides of the support beam (7-3) and are respectively hinged to the support beam (7-3); one end of the blocking beam oil cylinder (7-2) is hinged to the blocking beam (7-1), and the other end is hinged to the support beam (7-3); the blocking beam oil cylinder (7-2) is extended The guard beam (7-1) is retracted to rotate; one end of the No. I guard net oil cylinder (7-4) is hinged to the support beam (7-3), and the other end is hinged to the small guard net (7-5); the No. I guard net oil cylinder (7-4) is retracted to push the small guard net (7-5) to rotate; the large guard net (7-7) is arranged at the other end of the small guard net (7-5) and is hinged to the small guard net (7-5); one end of the No. II guard net oil cylinder (7-6) is hinged to the large guard net (7-7), and the other end is hinged to the small guard net (7-5); the No. II guard net oil cylinder (7-6) is retracted to push the large guard net (7-7) to rotate; The support beam (7-3) is composed of a vertical beam (7-3-1), a supporting oil cylinder (7-3-2), and a top beam (7-3-3); the top beam (7-3-3) is arranged in the inner cavity of the vertical beam (7-3-1), the supporting oil cylinder (7-3-2) is arranged in the inner cavity of the top beam (7-3-3), and one end of the supporting oil cylinder (7-3-2) is hinged to the vertical beam (7-3-1), and the other end is hinged to the top beam (7-3-3); the supporting oil cylinder (7-3-2) is extended and retracted to push the top beam (7-3-3) to extend and retract.
2. A head-on protection device according to claim 1, characterized in that: The telescopic arm (5) is composed of an outer arm (5-1), a telescopic oil cylinder (5-2), and an inner arm (5-3); the inner arm (5-3) is arranged in the inner cavity of the outer arm (5-1), the telescopic oil cylinder (5-2) is arranged in the inner cavity of the inner arm (5-3), and one end of the telescopic oil cylinder (5-2) is hinged to the outer arm (5-1), and the other end is hinged to the inner arm (5-3); the telescopic oil cylinder (5-2) is telescopic to push the inner arm (5-3) to telescope.