CN201103398Y - Down-hole tunnel suspension type self-walking advance timbering - Google Patents
Down-hole tunnel suspension type self-walking advance timbering Download PDFInfo
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- CN201103398Y CN201103398Y CNU2007200446056U CN200720044605U CN201103398Y CN 201103398 Y CN201103398 Y CN 201103398Y CN U2007200446056 U CNU2007200446056 U CN U2007200446056U CN 200720044605 U CN200720044605 U CN 200720044605U CN 201103398 Y CN201103398 Y CN 201103398Y
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- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 6
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- 230000033001 locomotion Effects 0.000 description 3
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- 239000000463 material Substances 0.000 description 2
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Abstract
A downhole tunnel suspending stepping self-moving forepoling is applicable to the tunnelling working face of anchor shoring tunnels, which is composed of a hydraulic shoring mechanism with changeable freedom degrees, a stepping moving mechanism connected with the hydraulic shoring mechanism, a mechanic hand moving with the stepping moving mechanism and a suspended beam held by a mechanic hand. The hydraulic shoring mechanism is composed of a swinging block four-rod mechanism and a parallelogram mechanism; the stepping walking moving mechanism is composed of a main arm, a sliding arm and a telescopic arm. The main arm is internally provided with a driving hydraulic cylinder connected with the telescopic arm, and the external part of the main arm is provided with a driving hydraulic cylinder moving together with the sliding base; the mechanic hands are arranged in pair on the bearing base of the sliding arm, the main arm and the telescopic arm. By making full use of features of the anchor rod such as simple shoring and high intensity, the forepoling completes pre and post self-stepping at the top of tunnels to automatically build cantilever supports in the big roof area 2 to 3m ahead of the tunnelling face. The device of the utility model can assist the pavement of shoring network, realize safe production, and improve the labor productivity and mineral exploitation efficiency, thus having extensive application.
Description
Technical field
The utility model relates to down-hole tunnel suspended stepping self-moving advance timbering, is particularly useful for the advance support of mine underworkings top board.
Background technology
Mine support is most important concerning Safety of Coal Mine Production, according to investigations in the 2005-2006 China's Statistical in interior coal enterprise's death by accident, owing to support apparatus have problems cause roof accident death toll all near 40%, account for a sizable part in the coal mining accident.Bolt support has development prospect widely because it is simple, safety, advantage such as expensive low have obtained development rapidly in recent decades in mine support equipment.
In the Coal Production process,, the personal safety of coal miner is caused very big danger because the defective of permanent support pattern also produces the phenomenon of head space operation through regular meeting.The technician has also carried out certain research to the leading temporary lining of coal mine support both at home and abroad for this reason, existing problem mainly contains: the strength problem of (1) advance beam, no matter be hacking shed tunnel, still the bolting with wire mesh tunnel all needs with fixedly fastening on permanent support the making of advance beam and fixing card, comprise the welding between employed material and the material, this all needs certain intensity, if intensity does not reach requirement, will bring hidden danger to trouble free service; (2) when the geology condition takes place by serious the variation, hacking shed tunnel strand top workload is big, dangerous big; The bolting with wire mesh back is uneven, and advance beam should not use, and need make advance beam card different in size; (3) still there is empty top operation phenomenon in advance timbering in installing process, and the quality of installing is difficult for guaranteeing, and great majority all are that security hidden trouble is serious by hand.
The utility model content
Technical problem: the purpose of this utility model provides the down-hole tunnel suspended stepping self-moving advance timbering that a kind of compact conformation, intensity height, security performance are reliable, avoid the operation of sky top, can move forward and backward at the top, tunnel.
Technical scheme: down-hole tunnel suspended stepping self-moving advance timbering of the present utility model, but it is made of walk manipulator that travel mechanism, the travel mechanism of walking with taking a step move and the overhanging beam of manipulator grasping of the hydraulic prop mechanism of variable freedom, taking a step of linking to each other with hydraulic prop mechanism, and wherein: hydraulic prop mechanism is made up of swinging block four-bar mechanism and parallel-crank mechanism; Take a step to walk travel mechanism by principal arm, be located at cursor slide on the principal arm, fit and the telescopic arm that can stretch constitute mutually with principal arm in principal arm; Principal arm inside is provided with the driving hydraulic jack that connects telescopic arm, and its outside is provided with and can makes slide with its driving hydraulic cylinder that moves; Manipulator is provided with in pairs, is located at respectively on the supporting base of cursor slide, principal arm and telescopic arm.
Described swinging block four-bar mechanism constitutes by driving hydraulic cylinder, piston rod, support arm and telescopic arm, is interval with cross bar perpendicular with it more than two or two on the support arm; Described parallel-crank mechanism is made of left and right sides parallel arms pole, telescopic arm and parallel arms; Described manipulator is by elevating mechanism, and the pawl seat that links to each other with elevating mechanism is hinged on left machine pawl and right machine pawl formation on the pawl seat, is located at reset tension spring between left machine pawl and the right machine pawl, and left machine pawl is provided with safety door hook and reset tension spring; Handwheel, machine pawl slideway machine pawl slide block that described elevating mechanism is located on the screw mandrel by screw mandrel, successively constitute.
Beneficial effect: but the utility model mainly is made up of the hydraulic prop mechanism of variable freedom and the two large divisions of travel mechanism that takes a step to walk.Wherein hydraulic prop mechanism is made up of swinging block four-bar mechanism and parallel-crank mechanism, parallel-crank mechanism begins not move because of the restriction of limit spring, the driving hydraulic cylinder of forming the swinging block four-bar mechanism at first drives the support arm that net is housed and upwards rotates, when turning to horizontal level, run on the parallel arms block of forming parallel-crank mechanism, support arm and parallel arms become a horizontal translation of member and rise to top board, thereby the height that can adapt to top board, and locking driving hydraulic cylinder makes the motionless support action that plays of hydraulic prop mechanism; The travel mechanism of taking a step to walk can make this advance timbering based on realizing on the basis of bolt support that the down-hole freely moves forward and backward, make full use of the easy and big characteristics of intensity of bolt support, be different from traditional supporting pattern, utilize the tunnel headroom to finish the walking of taking a step before and after self, realized making full use of of lane space, and can with other operating mechanism's concurrent job, realize the anchor combined supporting of pick; But building of the artificial temporary lining of generally adopting in the alternative current mine of variable freedom hydraulic prop mechanism can be realized the automation that 2～3 meters empty top zone cantilever timberings of development end front end are built, and builds the quality height, wide accommodation.Simultaneously, at the bolt support pattern, it can assist the lapping work of bolting with wire mesh, realizes safety in production, raise labour productivity and mining efficient, and its compact conformation, safe and reliable, have practicality widely.
Description of drawings
Fig. 1 is the utility model underworkings suspension type novel self-moving advance timbering structural front view of taking a step;
Fig. 2 is the utility model underworkings suspension type novel self-moving advance timbering structure vertical view of taking a step;
Fig. 3 is the utility model underworkings suspension type novel self-moving advance timbering manipulator enlarged drawing of taking a step.
Among the figure: cursor slide-1, principal arm-2, telescopic arm-3 drives hydraulic cylinder-4, drives hydraulic cylinder-5, parallel arms pole-6, parallel arms-7, support arm-8 drives hydraulic cylinder-9, cross bar-10, expansion link-11, overhanging beam-12, back-13, handwheel-14, machine pawl slideway-15, machine pawl slide block-16, chain-17, right machine pawl-18, reset tension spring-19, left machine pawl-20, safety door hook-21, reset tension spring-22, pawl seat-23, limit spring-24, piston rod-25, manipulator-A.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Fig. 1 is shown in Figure 2, but it by the hydraulic prop mechanism of scalable variable freedom, the overhanging beam 12 of take a step to walk travel mechanism, manipulator A and manipulator A grasping constitutes, hydraulic prop mechanism links to each other with the travel mechanism of taking a step to walk, and the travel mechanism of walking with taking a step moves.But the hydraulic prop mechanism of variable freedom is positioned at the leading portion of the walking mechanism of taking a step, realize temporary lining by driving hydraulic cylinder 9 to back, but the hydraulic prop mechanism of variable freedom is made up of swinging block four-bar mechanism and parallel-crank mechanism, the swinging block four-bar mechanism is made of the driving hydraulic cylinder 9 that is articulated as one successively, piston rod 25, support arm 8 and telescopic arm 3, is interval with cross bar perpendicular with it more than two or two 10 on the support arm 8.Parallel-crank mechanism is made of the left and right sides parallel arms pole 6, telescopic arm 3 and the parallel arms 7 that are articulated as one.Parallel-crank mechanism does not initially move because of the restriction of limit spring 24, drive hydraulic cylinder 9 and at first drive upwards rotation of support arm 8, when when turning to horizontal level, running into the block on the parallel arms 7, support arm 8 and parallel arms 7 become a member, this moment, hydraulic prop mechanism became by driving hydraulic cylinder 9, piston rod 25, the member that parallel arms 7 and support arm 8 unite two into one, left and right sides parallel arms pole 6, the six-bar mechanism that telescopic arm 3 constitutes, degree of freedom is 1, rise with the horizontal translation of member that the form of six-bar mechanism unites two into one parallel arms 7 and support arm 8, in case touch back 13 (hydraulic prop mechanism dotted line position among Fig. 1), drive hydraulic cylinder 9 self-lockings, to adapt to the height of top board, drive hydraulic cylinder 9 this moment and become a member with piston rod 25, hydraulic prop mechanism is by driving the member that hydraulic cylinder 9 and piston rod 25 unite two into one, the member that parallel arms 7 and support arm 8 unite two into one, left and right sides parallel arms pole 6, the five-rod that telescopic arm 3 constitutes, degree of freedom is zero, hydraulic prop mechanism is motionless, plays the effect of supporting roof.When driving hydraulic cylinder 9 driving support arms declines, rely on the limit spring 24 on the parallelogram supporting mechanism turning cylinder that the parallel arms 7 of support arm 8 and parallelogram supporting mechanism is descended together, when parallel arms 7 drops to the qualification position, support arm 8 changes the direction of motion, and rotation drops to initial position (hydraulic prop mechanism solid line position among Fig. 1).Take a step to walk travel mechanism by principal arm 2, be located at cursor slide 1 on the principal arm 2, fit and the telescopic arm 3 that can stretch in principal arm 2 constitute mutually with principal arm 2, principal arm 2 inside are provided with the driving hydraulic jack 5 that connects telescopic arm 3, and its outside is provided with and can makes slide 1 with its driving hydraulic cylinder 4 that moves; Manipulator A is provided with in pairs, is located at respectively on the supporting base of cursor slide 1, principal arm 2 and telescopic arm 3.Shown in Figure 3, manipulator A is by elevating mechanism, pawl seat 23, left side machine pawl 20 and right machine pawl 18 constitute, be located at reset tension spring 19 between left side machine pawl 20 and the right machine pawl 18, handwheel 14, machine pawl slideway 15 and machine pawl slide block 16 that elevating mechanism is located on the screw mandrel by screw mandrel, successively constitute, and drive leading screw by handwheel 14 and realize the up-down adjustment of manipulator A position.Left side machine pawl 20 is provided with safety door hook 21 and reset tension spring 22, safety door hook 21 can prevent the machine pawl in the course of the work accident open and cause the accident.Be equipped with chain 17 on safety door hook 21 and the right machine pawl 18; Left side machine pawl 20, right machine pawl 18 are hingedly mounted on the pawl seat 23, and pawl seat 23 is connected with machine pawl slide block 16, and the machine pawl slideway 15 that is connected with each working arm relatively by handwheel 14 driving machine pawl slide blocks 16 moves up and down.
Operating principle: initial position of the present utility model is that three groups of manipulator A are in closure state, and left and right sides machine pawl is kept a firm hand on the overhanging beam 12 that is connected with anchor pole 10 by expansion link 11; Manpower breaks away from the safety door hook 21 of the corresponding machine pawl of cursor slide by zip strip 17, and the machine pawl of making opens, and leaves overhanging beam 12, and this moment, cursor slide 1 was in the state of moving about; Driving hydraulic cylinder 4 driving cursor slides 1 travels forward with respect to principal arm 2; When moving to the precalculated position, reset tension spring 22 driving machine pawls are grabbed and are closed, and safety door hook 21 resets, and cursor slide 1 is fixing; Take a step in the walking process, guaranteeing has two groups of manipulator A to be in the state of closing of grabbing simultaneously, and one group of manipulator A is in open configuration, and three groups of manipulator A shuttling movements are realized the walking of taking a step in the well of advance timbering thus.When running into back when uneven, adjust the upper-lower position of machine pawl by regulating handwheel 14 on expansion link 11 and the manipulator A.Every group of manipulator A is connected with working arm by an adjustable-height device, and the adjustable-height device drives leading screw by handwheel and realizes the up-down adjustment of machine pawl position; Grab by the machine pawl and to close the relative fixed that self-control fixing anchor bar sleeve is realized its corresponding working arm, when the machine pawl was open configuration, corresponding working arm be the state of moving about, and grabbed fashionablely when the machine pawl of manipulator A, and the working arm of correspondence is a stationary state; Drive hydraulic cylinder and be used to drive the relative slip that realizes between three groups of working arms; In the walking process of taking a step, there is the machine pawl of two groups of manipulator A to be in the state of closing of grabbing simultaneously, the machine pawl of one group of manipulator A is in open configuration, the working arm that moves about of Driven by Hydraulic Cylinder open configuration machine pawl correspondence slides it, forward or backward when sliding into the precalculated position, reset tension spring 19 grabs the machine pawl to close the fixing anchor bar sleeve to realize the fixing of its corresponding working arm, unclamp another group manipulator A simultaneously, enter next do action, realize the walking of taking a step in the well of advance timbering thus.But the hydraulic prop mechanism of variable freedom is installed on the leading portion of the walking mechanism of taking a step, and support arm 8 is installed on the leading portion of the horizontal parallel arm of parallelogram supporting mechanism, is interval with at least two its perpendicular cross bars 10 on the support arm 8.Driving hydraulic cylinder 9 driving support arms 8 realizes lifting in the rotation, when lifting on the support arm 8 when parallel with the last horizontal parallel arm of parallelogram supporting mechanism, the block of installing on the parallelogram supporting mechanism changes the direction of motion of support arm 8, make itself and parallel arms realize together lifting on parallel, can adapt to the uneven of top board; When Driven by Hydraulic Cylinder support arm 8 descended, parallel-crank mechanism relied on the limit spring 24 on its turning cylinder to reset.
Claims (6)
1. down-hole tunnel suspended stepping self-moving advance timbering, it is characterized in that: but it constitute by walk manipulator (A) that travel mechanism, the travel mechanism of walking with taking a step move and the overhanging beam (12) of manipulator (A) grasping of the hydraulic prop mechanism of variable freedom, taking a step of linking to each other with hydraulic prop mechanism, wherein: hydraulic prop mechanism is made up of swinging block four-bar mechanism and parallel-crank mechanism; Take a step to walk travel mechanism by principal arm (2), be located at cursor slide (1) on the principal arm (2), fit and the telescopic arm (3) that can stretch constitute mutually with principal arm (2) in principal arm (2); Principal arm (2) inside is provided with the driving hydraulic jack (5) that connects telescopic arm (3), and its outside is provided with and can makes slide (1) with its driving hydraulic cylinder (4) that moves; Manipulator (A) is provided with in pairs, is located on the supporting base of cursor slide (1), principal arm (2) and telescopic arm (3) respectively.
2. down-hole tunnel suspended stepping self-moving advance timbering according to claim 1 is characterized in that: described swinging block four-bar mechanism constitutes by driving hydraulic cylinder (9), piston rod (25), support arm (8) and telescopic arm (3).
3. down-hole tunnel suspended stepping self-moving advance timbering according to claim 2 is characterized in that: be interval with cross bar perpendicular with it more than two or two (10) on the described support arm 8.
4. down-hole tunnel suspended stepping self-moving advance timbering according to claim 1 is characterized in that: described parallel-crank mechanism is made of left and right sides parallel arms pole (6), telescopic arm (3) and parallel arms (7).
5. down-hole tunnel suspended stepping self-moving advance timbering according to claim 1, it is characterized in that: described manipulator (A) is by elevating mechanism, the pawl seat that links to each other with elevating mechanism (23), the left machine pawl (20) and the right machine pawl (18) that are hinged on the pawl seat (23) constitute, be located at reset tension spring (19) between left side machine pawl (20) and the right machine pawl (18), left machine pawl (20) is provided with safety door hook (21) and reset tension spring (22).
6. down-hole tunnel suspended stepping self-moving advance timbering according to claim 4 is characterized in that: handwheel (14), machine pawl slideway (15) and machine pawl slide block (16) that described elevating mechanism is located on the screw mandrel by screw mandrel, successively constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200446056U CN201103398Y (en) | 2007-10-18 | 2007-10-18 | Down-hole tunnel suspension type self-walking advance timbering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200446056U CN201103398Y (en) | 2007-10-18 | 2007-10-18 | Down-hole tunnel suspension type self-walking advance timbering |
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| Publication Number | Publication Date |
|---|---|
| CN201103398Y true CN201103398Y (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200446056U Expired - Lifetime CN201103398Y (en) | 2007-10-18 | 2007-10-18 | Down-hole tunnel suspension type self-walking advance timbering |
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| CN (1) | CN201103398Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383815A (en) * | 2011-07-22 | 2012-03-21 | 安徽理工大学 | Suspension type driftage temporary supporting device and use method thereof |
| CN103397886A (en) * | 2013-07-30 | 2013-11-20 | 淮北市众泰机电工程有限公司 | Excavation roadway supporting working platform |
| CN104948109A (en) * | 2014-03-30 | 2015-09-30 | 写义明 | Suspension type omni-directional anchor rod drill carriage |
-
2007
- 2007-10-18 CN CNU2007200446056U patent/CN201103398Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383815A (en) * | 2011-07-22 | 2012-03-21 | 安徽理工大学 | Suspension type driftage temporary supporting device and use method thereof |
| CN102383815B (en) * | 2011-07-22 | 2013-11-27 | 安徽理工大学 | Suspension type driftage temporary supporting device and use method thereof |
| CN103397886A (en) * | 2013-07-30 | 2013-11-20 | 淮北市众泰机电工程有限公司 | Excavation roadway supporting working platform |
| CN104948109A (en) * | 2014-03-30 | 2015-09-30 | 写义明 | Suspension type omni-directional anchor rod drill carriage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080820 Effective date of abandoning: 20071018 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20080820 Effective date of abandoning: 20071018 |