阅读说明：本技术 一种适用于掘进机的履带式主动行走支护机构 (Crawler-type initiative walking supporting mechanism suitable for entry driving machine ) 是由 田震 高珊 张成光 刘伟 谢娟娟 朱彬 于 2019-10-16 设计创作，主要内容包括：一种适用于掘进机的履带式主动行走支护机构,包括行走部和支护部,行走部的液压马达和减速器设在轮架前端,液压马达与减速器相连,链轮与减速器动力输出端相连；张紧轮设在轮架后端,张紧轮与链轮之间由履带链条相连,在张紧轮与链轮之间的轮架下方设有若干支重轮,轮架上方设有履带链条摩擦板；支护部的支撑底座固装在轮架上,支撑油缸位于支撑顶梁与支撑底座之间；支撑顶梁包括纵梁、横梁及横板,若干横梁和横板固定跨装在两根纵梁之间；位于掘进方向最前端和最后端的两根支撑油缸倾斜设置,其余支撑油缸全部竖直设置；支撑底座与轮架之间采用插接方式相固连；在支撑油缸外侧设置有纵向防护板,在纵向防护板外表面挂装有防护网。(A crawler-type active walking support mechanism suitable for a heading machine comprises a walking part and a support part, wherein a hydraulic motor and a speed reducer of the walking part are arranged at the front end of a wheel carrier, the hydraulic motor is connected with the speed reducer, and a chain wheel is connected with the power output end of the speed reducer; the tensioning wheel is arranged at the rear end of the wheel carrier, the tensioning wheel is connected with the chain wheel through a track chain, a plurality of supporting wheels are arranged below the wheel carrier between the tensioning wheel and the chain wheel, and a track chain friction plate is arranged above the wheel carrier; a support base of the support part is fixedly arranged on the wheel carrier, and the support oil cylinder is positioned between the support top beam and the support base; the supporting top beam comprises longitudinal beams, cross beams and transverse plates, and the cross beams and the transverse plates are fixedly arranged between the two longitudinal beams in a straddling manner; two supporting oil cylinders positioned at the foremost end and the rearmost end in the tunneling direction are obliquely arranged, and the rest supporting oil cylinders are all vertically arranged; the supporting base is fixedly connected with the wheel carrier in an inserting mode; the outer side of the supporting oil cylinder is provided with a longitudinal protection plate, and the outer surface of the longitudinal protection plate is hung with a protection net.)

1. The utility model provides a crawler-type initiative walking support mechanism suitable for entry driving machine which characterized in that: comprises a walking part and a supporting part; the walking part comprises a hydraulic motor, a speed reducer, a chain wheel, a tension wheel, a supporting wheel, a track chain, a wheel carrier and a track chain friction plate; the hydraulic motor and the speed reducer are both arranged at the front end of the wheel carrier, the power output end of the hydraulic motor is connected with the power input end of the speed reducer, and the chain wheel is fixedly sleeved at the power output end of the speed reducer; the tensioning wheel is arranged at the rear end of the wheel carrier, the tensioning wheel is connected with the chain wheel through a track chain, the number of the supporting wheels is multiple, and the plurality of supporting wheels are arranged below the wheel carrier between the tensioning wheel and the chain wheel in parallel; the track chain friction plate is arranged above the wheel carrier between the tension wheel and the chain wheel; the supporting part comprises a supporting base, a supporting oil cylinder and a supporting top beam; the supporting base is fixedly arranged on the wheel carrier, the supporting top beam is positioned above the supporting base, and the supporting top beam is connected with the supporting base through a supporting oil cylinder.

2. the crawler-type active walking supporting mechanism suitable for the heading machine according to claim 1, wherein: the supporting top beam comprises longitudinal beams, cross beams and transverse plates; the cross beam is of an arc structure, and the transverse plate is of a straight plate structure; the number of the longitudinal beams is two, the two longitudinal beams are arranged in parallel, and the longitudinal beams are parallel to the tunneling direction; the number of the cross beams is a plurality of, the cross beams are uniformly distributed in parallel along the tunneling direction, the cross beams are fixedly arranged between the two longitudinal beams in a spanning mode, a transverse plate is arranged under each cross beam, the transverse plates are fixedly arranged between the two longitudinal beams in a spanning mode, and the transverse plates and the cross beams are perpendicular to the longitudinal beams.

3. The crawler-type active walking supporting mechanism suitable for the heading machine according to claim 2, wherein: the end part of a piston rod of the supporting oil cylinder is hinged to the lower surface of the longitudinal beam, and the end part of a cylinder barrel of the supporting oil cylinder is hinged to the upper surface of the supporting base; the supporting oil cylinders are distributed along the tunneling direction, the two supporting oil cylinders positioned at the foremost end and the rearmost end of the tunneling direction are obliquely arranged, and the rest supporting oil cylinders positioned between the two obliquely arranged supporting oil cylinders are all vertically arranged.

4. the crawler-type active walking supporting mechanism suitable for the heading machine according to claim 1, wherein: the support base and the wheel carrier are fixedly connected in an inserting mode, a vertical inserting groove is formed in the support base, an inserting plate is installed on the wheel carrier, a vertical inserting block is arranged on the inserting plate and matched with the vertical inserting groove in an inserting mode, and the vertical inserting block in an inserting state and the vertical inserting groove are fixed through bolts.

5. The crawler-type active walking supporting mechanism suitable for the heading machine according to claim 2, wherein: the supporting oil cylinder is characterized in that a longitudinal protection plate is arranged on the outer side of the supporting oil cylinder, the longitudinal protection plate is fixedly hoisted on the lower surface of the longitudinal beam, the longitudinal protection plate is of a latticed flat plate structure, a protection net is hung on the outer surface of the longitudinal protection plate, and the protection net is of a net-shaped steel wire structure.

Technical Field

The invention belongs to the technical field of tunneling support equipment, and particularly relates to a crawler-type active walking support mechanism suitable for a tunneling machine.

Background

With the rapid development of coal mine fully-mechanized mining technical equipment and mine supporting facilities, the mining intensity of a fully-mechanized mining working face is multiplied, and the underground roadway tunneling engineering quantity of a coal mine is promoted to be synchronously and sharply increased.

The safety problem of temporary support when the tunneling work faces is a technical problem which puzzles coal production for a long time, and the top plate can not be effectively supported in time after the tunneling, so that the top plate can often fall rocks to cause accidents of hurting people; the other type is a non-airborne tunneling support device which can move automatically and can realize continuous tunneling and continuous support operation, but a cross stepping type advancing mode is mostly adopted, so that the support device is difficult to advance or retreat under the condition that a bottom plate is soft or uneven in height, and the support position can be deviated due to different left and right advancing resistances in the moving process of the support device.

therefore, the design of the supporting equipment which has large supporting area, can move automatically and can safely support the tunneling process in the walking process is of great importance to the safe production of coal.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a crawler-type active walking supporting mechanism suitable for a heading machine, which has the characteristics of large supporting area, capability of automatically moving and capability of safely supporting the heading process in the walking process.

In order to achieve the purpose, the invention adopts the following technical scheme: a crawler-type active walking support mechanism suitable for a heading machine comprises a walking part and a support part; the walking part comprises a hydraulic motor, a speed reducer, a chain wheel, a tension wheel, a supporting wheel, a track chain, a wheel carrier and a track chain friction plate; the hydraulic motor and the speed reducer are both arranged at the front end of the wheel carrier, the power output end of the hydraulic motor is connected with the power input end of the speed reducer, and the chain wheel is fixedly sleeved at the power output end of the speed reducer; the tensioning wheel is arranged at the rear end of the wheel carrier, the tensioning wheel is connected with the chain wheel through a track chain, the number of the supporting wheels is multiple, and the plurality of supporting wheels are arranged below the wheel carrier between the tensioning wheel and the chain wheel in parallel; the track chain friction plate is arranged above the wheel carrier between the tension wheel and the chain wheel; the supporting part comprises a supporting base, a supporting oil cylinder and a supporting top beam; the supporting base is fixedly arranged on the wheel carrier, the supporting top beam is positioned above the supporting base, and the supporting top beam is connected with the supporting base through a supporting oil cylinder.

The supporting top beam comprises longitudinal beams, cross beams and transverse plates; the cross beam is of an arc structure, and the transverse plate is of a straight plate structure; the number of the longitudinal beams is two, the two longitudinal beams are arranged in parallel, and the longitudinal beams are parallel to the tunneling direction; the number of the cross beams is a plurality of, the cross beams are uniformly distributed in parallel along the tunneling direction, the cross beams are fixedly arranged between the two longitudinal beams in a spanning mode, a transverse plate is arranged under each cross beam, the transverse plates are fixedly arranged between the two longitudinal beams in a spanning mode, and the transverse plates and the cross beams are perpendicular to the longitudinal beams.

The end part of a piston rod of the supporting oil cylinder is hinged to the lower surface of the longitudinal beam, and the end part of a cylinder barrel of the supporting oil cylinder is hinged to the upper surface of the supporting base; the supporting oil cylinders are distributed along the tunneling direction, the two supporting oil cylinders positioned at the foremost end and the rearmost end of the tunneling direction are obliquely arranged, and the rest supporting oil cylinders positioned between the two obliquely arranged supporting oil cylinders are all vertically arranged.

The support base is fixedly connected with the wheel carrier in a plugging mode, a vertical plugging groove is formed in the support base, a plugging plate is installed on the wheel carrier, a vertical plugging block is arranged on the plugging plate and is in plugging fit with the vertical plugging groove, and the vertical plugging block in a plugging state and the vertical plugging groove are fixed through bolts.

The supporting oil cylinder is characterized in that a longitudinal protection plate is arranged on the outer side of the supporting oil cylinder, the longitudinal protection plate is fixedly hoisted on the lower surface of the longitudinal beam, the longitudinal protection plate is of a latticed flat plate structure, a protection net is hung on the outer surface of the longitudinal protection plate, and the protection net is of a net-shaped steel wire structure.

The invention has the beneficial effects that:

the crawler-type active walking support mechanism suitable for the heading machine has the characteristics of large support area, capability of automatically moving and capability of safely supporting the heading process in the walking process.

Drawings

Fig. 1 is a schematic structural diagram of a crawler-type active walking supporting mechanism suitable for a heading machine, provided by the invention;

FIG. 2 is a schematic structural diagram of a crawler-type active walking support machine (when used with a heading machine) suitable for the heading machine of the invention;

Fig. 3 is a schematic structural diagram of a crawler-type active walking supporting mechanism (a protective net is not shown) suitable for the heading machine;

FIG. 4 is a schematic view of the construction of the traveling part (track chain not shown) of the present invention;

FIG. 5 is a schematic view of the structure of the walking part (when assembled with the supporting base) of the present invention;

FIG. 6 is a schematic view of the assembly of the support base, the support cylinder and the longitudinal beam of the present invention;

FIG. 7 is a schematic structural view of the support cap of the present invention;

FIG. 8 is a partial structural view of the support base of the present invention;

In the figure, 1-hydraulic motor, 2-reducer, 3-chain wheel, 4-tension wheel, 5-thrust wheel, 6-track chain, 7-wheel carrier, 8-track chain friction plate, 9-supporting base, 10-supporting oil cylinder, 11-supporting top beam, 12-longitudinal beam, 13-cross beam, 14-cross plate, 15-vertical insertion groove, 16-insertion plate, 17-vertical insertion block, 18-longitudinal protection plate, 19-protection net, 20-heading machine.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 to 8, a crawler-type active walking supporting mechanism suitable for a heading machine comprises a walking part and a supporting part; the walking part comprises a hydraulic motor 1, a speed reducer 2, a chain wheel 3, a tension wheel 4, a supporting wheel 5, a track chain 6, a wheel carrier 7 and a track chain friction plate 8; the hydraulic motor 1 and the speed reducer 2 are both arranged at the front end of the wheel carrier 7, the power output end of the hydraulic motor 1 is connected with the power input end of the speed reducer 2, and the chain wheel 3 is fixedly sleeved at the power output end of the speed reducer 2; the tensioning wheel 4 is arranged at the rear end of the wheel carrier 7, the tensioning wheel 4 is connected with the chain wheel 3 through a track chain 6, the number of the supporting wheels 5 is multiple, and the plurality of supporting wheels 5 are arranged below the wheel carrier 7 between the tensioning wheel 4 and the chain wheel 3 in parallel; the track chain friction plate 8 is arranged above the wheel carrier 7 between the tension wheel 4 and the chain wheel 3; the supporting part comprises a supporting base 9, a supporting oil cylinder 10 and a supporting top beam 11; the supporting base 9 is fixedly arranged on the wheel carrier 7, the supporting top beam 11 is positioned above the supporting base 9, and the supporting top beam 11 is connected with the supporting base 9 through a supporting oil cylinder 10.

The supporting top beam 11 comprises longitudinal beams 12, cross beams 13 and transverse plates 14; the cross beam 13 is of an arc structure, and the transverse plate 14 is of a straight plate structure; the number of the longitudinal beams 12 is two, the two longitudinal beams 12 are arranged in parallel, and the longitudinal beams 12 are parallel to the tunneling direction; the number of the cross beams 13 is multiple, the cross beams 13 are uniformly distributed in parallel along the tunneling direction, the cross beams 13 are fixedly arranged between the two longitudinal beams 12 in a spanning mode, a transverse plate 14 is arranged under each cross beam 13, the transverse plate 14 is fixedly arranged between the two longitudinal beams 12 in a spanning mode, and the transverse plate 14 and the cross beams 13 are perpendicular to the longitudinal beams 12.

The end part of a piston rod of the supporting oil cylinder 10 is hinged to the lower surface of the longitudinal beam 12, and the end part of a cylinder barrel of the supporting oil cylinder 10 is hinged to the upper surface of the supporting base 9; the number of the supporting oil cylinders 10 is a plurality, the supporting oil cylinders 10 are distributed along the tunneling direction, two supporting oil cylinders 10 located at the foremost end and the rearmost end of the tunneling direction are obliquely arranged, and the rest supporting oil cylinders 10 located between the two obliquely arranged supporting oil cylinders 10 are all vertically arranged.

The support base 9 and the wheel carrier 7 are fixedly connected in an inserting mode, a vertical inserting groove 15 is formed in the support base 9, an inserting plate 16 is installed on the wheel carrier 7, a vertical inserting block 17 is arranged on the inserting plate 16, the vertical inserting block 17 is in inserting fit with the vertical inserting groove 15, and the vertical inserting block 17 in an inserting state and the vertical inserting groove 15 are fixed through bolts.

A longitudinal protection plate 18 is arranged on the outer side of the supporting oil cylinder 10, the longitudinal protection plate 18 is fixedly hung on the lower surface of the longitudinal beam 12, the longitudinal protection plate 18 is of a latticed flat plate structure, a protection net 19 is hung on the outer surface of the longitudinal protection plate 18, and the protection net 19 is of a net-shaped steel wire structure.

when the development machine 20 is matched with the invention for use, the invention directly provides advancing power through the hydraulic motor 1 of the walking part, so that the invention and the development machine 20 realize synchronous movement. In case of falling rocks on the roof of the tunnel, the body and the driver of the heading machine 20 can be protected by the cross plate 14 supporting the roof beam 11. The longitudinal protection plates 18 on the two sides can protect the support oil cylinder 10 from being damaged by large coal rocks falling off from the two sides of the roadway, and meanwhile, the protective net 19 can protect the machine body and the driver of the heading machine 20 from being damaged by small coal rocks falling off from the two sides of the roadway. In order to improve the rigidity and strength of the support, the longitudinal beam 12 has a rectangular cross section.