CN102944477A - Large-displacement drawing machine for constant-resistance anchor tie and usage method thereof - Google Patents

Large-displacement drawing machine for constant-resistance anchor tie and usage method thereof Download PDF

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Publication number
CN102944477A
CN102944477A CN2012104486630A CN201210448663A CN102944477A CN 102944477 A CN102944477 A CN 102944477A CN 2012104486630 A CN2012104486630 A CN 2012104486630A CN 201210448663 A CN201210448663 A CN 201210448663A CN 102944477 A CN102944477 A CN 102944477A
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CN
China
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support column
column
hydraulic cylinder
displacement
constant
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CN2012104486630A
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Chinese (zh)
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CN102944477B (en
Inventor
孙晓明
何满潮
袁越
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中国矿业大学(北京)
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Priority to CN201210448663.0A priority Critical patent/CN102944477B/en
Publication of CN102944477A publication Critical patent/CN102944477A/en
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Abstract

The invention provides a large-displacement drawing machine for a constant-resistance anchor tie and a usage method thereof. The large-displacement drawing machine comprises a supporting column, a hoop, a rotating seat, a hollow hydraulic cylinder and a hydraulic pump, wherein the supporting column can be supported in a tunnel; the hoop is sleeved on the supporting column; the rotating seat is assembled on the hoop; the hollow hydraulic cylinder can draw the anchor tie; the hydraulic pump drives the hollow hydraulic cylinder; the length of the supporting column can be adjusted; two ends of the supporting column can be leaned against on the bottom surface and the top surface of the tunnel, which are opposite; the hoop can be detachably mounted at different positions on the supporting column; the rotating seat can be fixedly arranged on the hoop at different rotation angles; the hollow hydraulic cylinder is connected with the hydraulic pump; and the hollow hydraulic cylinder is assembled on the rotating seat. The large-displacement drawing machine for the constant-resistance anchor tie has the advantages of large displacement range, high bearing capacity, simple structure, convenience in movement, flexibility in operation, and safety and reliability in transportation.

Description

The large displacement drawbench of constant-resistance anchor pole and using method thereof
Technical field
The present invention relates to the mine support engineering equipment, relate in particular to a kind of large displacement drawbench of constant-resistance anchor pole and using method thereof for the tunnel supporting anchor rod detection.
Background technology
In the coal mine down-hole tunnel supporting, anchor pole is the support material most widely used, that consumption is maximum.Along with the continuous increase of coal mine worker mining depth, roadway surrounding rock usually shows the characteristics of Nonlinear Large Deformation, is embodied in soft rock large deformation, impacts large deformation, rock burst large deformation, Gas Outburst large deformation etc.But the low problem of existing support material ubiquity extensibility can not adapt to the characteristics of deep tunnel country rock large deformation.When moderate finite deformation appears in country rock, because distortion initial stage energy is larger, the deformation energy of roadway surrounding rock exceeds the scope that anchor pole can bear, and will cause anchor pole broken end, the fracture of anchor cable (bar) middle part, steelframe distortion damage inactivation etc., and then cause the accidents such as fall of ground, landslide.And constant resistance and large deformation stability control theory can solve the problem that the extensibility of existing anchor pole existence is low, can not satisfy roadway surrounding rock large deformation needs.Therefore, a kind of special anchor pole with large extensibility, high Support Resistance arises at the historic moment, and Chinese patent 201010196197.2 discloses a kind of novel constant resistance and large deformation anchor rod.The elongation of this novel anchor rod can reach 600 ~ 800mm, and working resistance can reach more than the 13t, and still, the drawing stroke of present anchor rod drawing machine is little, the drawing load is low, weight is large, has been difficult to satisfy the requirement that such novel anchor rod detects in the underworkings supporting.
Publication number is that CN 102323152A name is called in the Chinese invention patent of " constant resistance and large deformation anchor rod tautness meter ", a kind of constant resistance and large deformation anchor rod tautness meter is provided, the hollow lifting jack that it comprises pull bar and is used for stretching anchor rod, wherein, also comprise the jacking gear of whirligig, the described hollow lifting jack of control and the whirligig height of controlling the described hollow lifting jack anglec of rotation and the first hydraulic pump that drives described hollow lifting jack operation; The hollow lifting jack is fixed on the whirligig, and whirligig is located on the jacking gear.Though the constant resistance and large deformation anchor rod tautness meter that provides has advantages of that range is large, load-bearing capacity is high, can reduce labour intensity.But the automatic control component that its jacking gear and whirligig are comprised of hydraulic cylinder and connecting rod etc. has only consisted of height control and angular setting two axle systems, makes height control relative with angular setting inflexible.And parts are many and heavy, need to be installed on the ride, otherwise can't arbitrarily move.But in the actual conditions, bottom surface, most tunnel also is not suitable for the heavy goods vehicles platform and advances, and some is at all impassable, the actions such as more impossible random adjustment ride angle, and therefore, this constant resistance and large deformation anchor rod drawing equipment does not have convenience and versatility.
Summary of the invention
Purpose of the present invention: existing anchor rod drawing meter displacement range is little, the drawing load is low in order to solve, weight is large, complicated operation can not satisfy constant resistance and large deformation anchor rod detects needs in the underworkings support engineering problem, has invented that a kind of displacement range is large, bearing capacity is high, simple in structure, conveniently moving, flexible operation, the large displacement drawbench of the reliable constant-resistance anchor pole of transportation safety.
To achieve these goals, the invention provides the large displacement drawbench of constant-resistance anchor pole, comprise: can be supported in the support column in the tunnel, be sleeved on the anchor ear on the described support column, be assemblied in the rotary seat of described anchor ear, the hollow hydraulic cylinder of energy drawing bolt, and the hydraulic pump that drives described hollow hydraulic cylinder; Described support column adjustable in length, its two ends can hold out against on described tunnel two relative bottom surface and end face; Described anchor ear is removable to be installed on the diverse location of described support column, and described rotary seat can be fixed in described anchor ear in the different rotary angle; Described hollow hydraulic cylinder is connected with described hydraulic pump, and described hollow hydraulic cylinder is assemblied on the described rotary seat.
By analyzing technical scheme of the present invention as can be known, the present invention is with respect to the beneficial effect of prior art: with respect to prior art with the fixing hollow hydraulic cylinder of large-scale automatic control ride, the present invention with can vertical supporting the support column in the tunnel as the fixing frame of hollow hydraulic cylinder, carry and installation with convenient.Anchor ear and rotary seat are at the setting height(from bottom) of support column and setting angle capable of regulating all, the stationary shaft rotary seat can be fixing in the different rotary angle for the hollow hydraulic cylinder, the installation site setting angle of support column also can be regulated by the control of adjusting heel piece, and above these adjustable extents can make the more convenient alignment of hollow hydraulic cylinder.And kept the force application part of hollow hydraulic cylinder as anchor rod drawing.Reach whereby that the displacement range is large, bearing capacity is high, simple in structure, conveniently moving, flexible operation, the reliable advantage of transportation safety.
According to a kind of preferred implementation of the large displacement drawbench of above-mentioned constant-resistance anchor pole, wherein, also comprise the reference column that is parallel to described support column; Described support column adjustable in length, described support column are connected the bottom and are had the bottom link that connects the two with reference column.The location of reference column energy supplemental support post is set, and both be arranged in parallel, can better determine the sensing of hollow hydraulic cylinder on the support column.Utilize to adjust heel piece and can adjust easily the total length of described support column and reference column, thereby effectively be supported on the relative face in tunnel two, realize the fixing of drawbench.
A kind of preferred implementation according to the large displacement drawbench of above-mentioned constant-resistance anchor pole, wherein, described anchor ear has one perpendicular to the stationary shaft of described support column, described stationary shaft and described anchor ear are formed in one, and described rotary seat is fixed in described anchor ear by described stationary shaft in the different rotary angle.
A kind of preferred implementation according to the large displacement drawbench of above-mentioned constant-resistance anchor pole, wherein, described rotary seat also has back up pad and clip, described clip can be assemblied in described stationary shaft in the different rotary angle, described back up pad is fixed in described clip, and described hollow hydraulic cylinder is assemblied on the described back up pad.
According to a kind of preferred implementation of the large displacement drawbench of above-mentioned constant-resistance anchor pole, wherein, described support column also is equipped with jacking gear, and described jacking gear is light hoist; Described jacking gear comprises coiler, rope and fixed pulley; Described fixed pulley is fixed on described support column top; Described coiler is articulated in described support column bottom; Described rope one end is disposed at described coiler, and the other end is walked around described fixed pulley and is connected in described hollow hydraulic cylinder, and described rope is take described fixed pulley as the top fulcrum.
According to a kind of preferred implementation of the large displacement drawbench of above-mentioned constant-resistance anchor pole, wherein, described hydraulic pump is hydraulic hand-pump, and described hydraulic pump is connected to described hollow hydraulic cylinder by hydraulic tube.The light portable of being more convenient for of hydraulic hand-pump, and cost is low.
According to a kind of preferred implementation of the large displacement drawbench of above-mentioned constant-resistance anchor pole, wherein, described support column and reference column bottom all have respectively the height control heel piece, and described height control heel piece comprises spire and is fixed in the base of described spire bottom; The top of described spire is external thread part, and the bottom is for being subjected to external force to drive the force section that produces rotation; Described support column and reference column bottom hollow, and all have the internal thread that cooperates described external thread part.Thereby realize the height control of base.
A kind of preferred implementation according to the large displacement drawbench of above-mentioned constant-resistance anchor pole, wherein, described support column is connected the top and is had the top link that connects the two with reference column, described link is packed on described support column and the reference column by securing member, and described top link and described bottom link are truss structure.So that support column and reference column fixedly are assembled into one, and to reserve as much as possible the height of the movable assembling of hollow hydraulic cylinder at support column and reference column middle part.
According to a kind of preferred implementation of the large displacement drawbench of above-mentioned constant-resistance anchor pole, wherein, described hydraulic pump also comprises pressure-display device, and described pressure-display device shows the stretching force of described hollow hydraulic cylinder.
The present invention also provides a kind of using method of as previously mentioned drawbench, comprises step:
One, erects described support column and reference column, regulate the adjustment heel piece of described support column, described support column is supported in the tunnel;
Two, rotate described reference column, make described reference column and support column and treat that anchor pole that drawing detects is in same plane;
Three, regulate the adjustment heel piece of described reference column, described reference column is supported in the tunnel;
Four, by described anchor ear is installed described rotary seat is adjusted to the position that correspondence is treated drawing detection anchor pole;
Five, adjust the angle that described rotary seat is assemblied in described anchor ear stationary shaft, make described rotary seat correspondence treat that drawing detects the angle of anchor pole;
Six, the described hydraulic pump of operation utilizes the described anchor pole of described hollow hydraulic cylinder drawing.
According to a kind of preferred implementation of the large displacement drawbench of above-mentioned constant-resistance anchor pole using method, wherein, in the described step 2, screw described support column adjustment heel piece by rotating described reference column.
Description of drawings
Fig. 1 is the structural representation of the large displacement drawbench of constant-resistance anchor pole of the present invention.
Fig. 2 is the cooperation schematic diagram that anchor ear is fixed in support column among the present invention.
Fig. 3 is the enforcement schematic diagram that the large displacement drawbench of constant-resistance anchor pole of the present invention is applied to the horizontal direction anchor pole.
Fig. 4 is the enforcement schematic diagram that the large displacement drawbench of constant-resistance anchor pole of the present invention is applied to the vergence direction anchor pole.
Fig. 5 is the enforcement schematic diagram that the large displacement drawbench of constant-resistance anchor pole of the present invention is applied to the vertical direction anchor pole.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further details.
As shown in Figure 1, the large displacement drawbench of constant-resistance anchor pole provided by the invention comprises: twin columns support 3, rotary seat 2 and hollow hydraulic cylinder 1.Twin columns support 3 can vertical supporting in the tunnel, with the main structure body as drawbench.Hollow hydraulic cylinder 1 is assemblied on the twin columns support 3 removably by rotary seat 2.
As shown in Figure 1, twin columns support 3 main bodys comprise support column 31, reference column 32 and link 33; Support column 31 and reference column 32 are preferably hollow metal tube, preferably have the metal material of satisfactory texture intensity and lighting concurrently, such as: aluminium, aluminium alloy, almag, aluminum titanium alloy etc.Bottom and top at support column 31 and reference column 32 preferably all are connected with link 33, and support column 31 and reference column 31 middle parts will reserve as much as possible as hollow hydraulic cylinder 1 assembling height.Link 33 can be packed on support column 31 and the reference column 32 by several securing members, and link 33 is preferably the truss structure of straight-bar and brace composition, so that support column 31 and reference column 32 fixedly are assembled into one.Be convenient to transportation and quick-detachment and assembling for drawbench of the present invention, securing member used herein can be the quick detach bolt.
Support column 31 and reference column 32 also all have shores 34 and base 36.It is open that support column 31 and reference column 32 tops and bottom all are hollow, the top all be equipped be used to support in the tunnel end face shore 34, the bottom all is equipped with the base 36 that is supported in the bottom surface, tunnel.Base 36 is the heel piece of height-adjustable, and height that can be by adjusting base 36 withstands support column 31 and reference column 32 on the relative face in tunnel two, thereby realizes the fixing of drawbench.Certainly, if necessary, shore 34 and also can select height adjustable parts.Shore 34 bottoms and also can be fixed with one section pipe fitting that can be sleeved in support column 31 or the reference column 32, shore 34 pull out rear tubular member can also be fixing with support column 31 or reference column 32, so, support column 31 or reference column 32 whole heights can also be adjusted in larger height space, the tunnel that varies in size with suitable for various size.
In the preferred embodiment, the spire 35 that base 36 connects is thereon realized height-adjustable; The top of spire 35 is external thread part, and the bottom is for being subjected to external force to drive the force section that produces rotation.All has the internal thread that cooperates with spire 35 in support column 31 and reference column 32 bottoms.Be distributed with a plurality of blind holes or through hole in the differing heights different angles on the force section, rotating screw section 35 after so operating personnel just can insert with pipe fitting, thereby the height control of realization base 36.
As shown in Figure 1 and Figure 2, rotary seat 2 comprises back up pad 21, clip 22, stationary shaft 23 and anchor ear 24.Stationary shaft 23 can be assemblied on the differing heights of support column 31 removably by anchor ear 24.Anchor ear 24 comprise two large to c-shaped steel plates, stationary shaft 23 is welded as a whole with one of them steel plate is better, two C shape steel plate two ends by several bolted that wear on support column 31, thereby stationary shaft 23 is fixed in position perpendicular to support column 31.Clip 22 forms for two boards spare, and each plate middle part has the half slot that can fix on stationary shaft 23.Have through hole on the clip 22, can be by being fixed on the stationary shaft 23 behind the bolt clamping stirrup 22.And better have two groups of clips 22 to be fixed on side by side on the stationary shaft 23, and whereby, clip 22 can be assemblied in stationary shaft 23 in the different rotary angle.Back up pad 21 is long slab spare, is provided with many group through holes on it, and back up pad 21 can wear by a plurality of bolts and be fixed on the clip 22.Back up pad 21 also has the parts of assembling hollow hydraulic cylinder 1, for example with a plurality of hoop spares hollow hydraulic cylinder 1 is fixed on the back up pad 21.
By said structure, by unclamping the anchor ear 24 of holding tightly on support column 31, hollow hydraulic cylinder 1 adjusted to the height that needs after, and then tightly go up the height control that anchor ear 24 just can be finished hollow hydraulic cylinder 1.By unclamping the clip 22 of holding tightly on stationary shaft 23, hollow hydraulic cylinder 1 adjusted to the angle that needs after, and then tight front band 22 just can be finished the angular setting of hollow hydraulic cylinder 1.
As shown in Figure 1, and with reference to Fig. 3 to Fig. 5, hollow hydraulic cylinder 1 is existing hollow type hydraulic cylinder, its inner chamber can be set in wherein for anchor pole 5 or pull bar, hollow hydraulic cylinder 1 rear end is hollow piston rod 14, and the rearmost end of piston rod 14 is a tip end piece 13, but tip end piece 13 steady brace (existing products, repeat no more), pull bar then is fixedly connected on anchor pole 5 outer ends of wanting drawing.During hollow hydraulic cylinder 1 running, hollow hydraulic cylinder 1 front end sleeve is contained in outside the anchor pole 5 of wanting drawing, and piston rod 14 is with tip end piece 13 cylinder lever connecting rods, with pull bar drawing bolt 5, it is entered in the hollow bulb in the hollow hydraulic cylinder 1, until finish drawing.
As shown in Figure 1, hollow hydraulic cylinder 1 is connected with hydraulic pump 10 by hydraulic tube 15.For ease of portable, hydraulic pump 10 is preferably hydraulic hand-pump.In another preferred implementation of the present invention, also can use pneumatically powered hydraulic pump to drive hollow hydraulic cylinder 1, use the compressed air source in the pipeline, reliable operation, long service life, easy to maintenance, noise is low.Hydraulic pump 10 has handle 11 and pressure-display device 12.By observing the reading of pressure-display device 12, just can know the pressure in the hollow hydraulic cylinder 1, again in conjunction with the cross-sectional area parameter of piston in the hollow hydraulic cylinder 1, can calculate the stretching force of hollow hydraulic cylinder 1.Pressure-display device 12 also is built-in with parameter calculating module and data memory module.Parameter calculating module is according to the real-time pressure of hydraulic oil in hollow hydraulic cylinder 1 cavity, and in conjunction with the piston cross-sectional area of hollow hydraulic cylinder 1, calculates the real-time stretching force of hollow hydraulic cylinder 1.Memory module is used for the real-time parameter that storage detects constant resistance and large deformation anchor rod, can conveniently derive by data-interface and put in order and analyze.
As shown in Figure 1, for the ease of the installation of hollow hydraulic cylinder 1, the better jacking gear that also is equipped with on the support column 31, jacking gear is a kind of light hoist in the present embodiment.Jacking gear comprises manual coiler 41, rope 43 and fixed pulley 44.Fixed pulley 44 can be crossed bearing and be lifted on support column 31 tops.Coiler 41 is articulated in support column 31 bottoms, and the one side is fixed with lever 42, and coiler 41 also should be selected limit switches certainly, to guarantee the controlled and security of operation.Rope 43 1 ends are disposed at coiler 41, and the other end is walked around fixed pulley 44 and is connected in hollow hydraulic cylinder 1, the top fulcrum take fixed pulley 44 as jacking gear.So, can control coiler 41 by lever 42, roll or decontrol rope 43, can finish than the labour-saving and mention or put down hollow hydraulic cylinder 1.When adjusting hollow hydraulic cylinder 1 height, just can mention hollow hydraulic cylinder 1 with jacking gear, thereby reduce operating personnel's working strength, can also be as the assurance on the safety.
Such as Fig. 1, and with reference to Fig. 3 to Fig. 5, the using method of drawbench of the present invention, concrete steps are:
One, erects twin columns support 3.First support column 31 is connected with link 33(as shown in Figure 1 with reference column) connect, then it is moved near the constant-resistance anchor pole 5 to be tested, and the spire under the rotary support post 31 35, so that support column 31 tops hold out against crag.
Two, rotation reference column 32 makes reference column 32 and support column 31 and treats that anchor pole 5 that drawing detects is on same straight line; At this moment be further noted that the sense of rotation of reference column 32, as far as possible by rotating the base 36 of reference column 32 screwed support posts 31.
Three, regulate the base 36 of reference column 32, reference column 32 is supported in the tunnel;
Four, the lever 42 of operation coiler 41 is adjusted to hollow hydraulic cylinder 1 and rotary seat 2 near the constant-resistance anchor pole to be tested end, by dismounting rotary seat 2 hollow hydraulic cylinder 1 is adjusted to correspondence and treats that drawing detects the position of anchor pole 5;
Five, adjust the angle that hollow hydraulic cylinder 1 is assemblied in stationary shaft 23, make its correspondence treat that drawing detects the angle of anchor pole 5.The bolt of clip 22 is unscrewed to a suitable degree, back up pad 21 and clip 22 are rotated around stationary shaft 23, until the end of the end alignment of hollow hydraulic cylinder 1 constant-resistance anchor pole 5 to be tested, Fig. 3 to Fig. 5 is respectively the schematic diagram of the constant-resistance anchor pole 5 of testing level, inclination and upright position.
Six, operation hydraulic pump 10 utilizes hollow hydraulic cylinder 1 drawing bolt 5.The drawing connecting rod of one customization is penetrated in the cavity of hollow hydraulic cylinder 1, one end is connected with constant-resistance anchor pole 5 outer ends, the other end stretches out the top 13 of the piston rod 14 of hollow hydraulic cylinder 1, hollow hydraulic cylinder 1 bottom is supported after on the pallet of constant-resistance anchor pole 5 to be measured, fixes the end that the drawing connecting rod stretches out hollow hydraulic cylinder 1.Handle 11 above the last operation hydraulic pump 10 drive hollow hydraulic cylinder 1, thereby slowly drawing constant-resistance anchor pole 5 calculates and records every test data simultaneously.
In sum, the present invention can regulate the position of hollow hydraulic cylinder simply, easily by jacking gear, whirligig, and adopt hydraulic hand-pump to load, realized large displacement drawing range, high drawing load, solved existing anchor rod drawing machine and can not satisfy the constant-resistance anchor pole detects needs at the underworkings support engineering problem.
As known by the technical knowledge, the present invention can realize by other the embodiment that does not break away from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All within the scope of the present invention or the change within being equal to scope of the present invention all be included in the invention.

Claims (10)

1. the large displacement drawbench of constant-resistance anchor pole is characterized in that, comprising: can be supported in the support column in the tunnel, be sleeved on the anchor ear on the described support column, be assemblied in the rotary seat of described anchor ear, the hollow hydraulic cylinder of energy drawing bolt, and the hydraulic pump that drives described hollow hydraulic cylinder;
Described support column adjustable in length, its two ends can hold out against on described tunnel two relative bottom surface and end face;
Described anchor ear is removable to be installed on the diverse location of described support column, and described rotary seat can be fixed in described anchor ear in the different rotary angle;
Described hollow hydraulic cylinder is connected with described hydraulic pump, and described hollow hydraulic cylinder is assemblied on the described rotary seat.
2. the large displacement drawbench of constant-resistance anchor pole according to claim 1 is characterized in that, also comprises the reference column that is parallel to described support column; Described support column adjustable in length, described support column are connected the bottom and are had the bottom link that connects the two with reference column.
3. the large displacement drawbench of constant-resistance anchor pole according to claim 2, it is characterized in that, described anchor ear has one perpendicular to the stationary shaft of described support column, described stationary shaft and described anchor ear are formed in one, and described rotary seat is fixed in described anchor ear by described stationary shaft in the different rotary angle.
4. the large displacement drawbench of constant-resistance anchor pole according to claim 3, it is characterized in that, described rotary seat has back up pad and clip, described clip can be assemblied in described stationary shaft in the different rotary angle, described back up pad is fixed in described clip, and described hollow hydraulic cylinder is assemblied on the described back up pad.
5. the large displacement drawbench of constant-resistance anchor pole according to claim 4 is characterized in that, described support column also is equipped with jacking gear, and described jacking gear is light hoist; Described jacking gear comprises coiler, rope and fixed pulley; Described fixed pulley is fixed on described support column top; Described coiler is articulated in described support column bottom; Described rope one end is disposed at described coiler, and the other end is walked around described fixed pulley and is connected in described hollow hydraulic cylinder, and described rope is take described fixed pulley as the top fulcrum.
6. according to claim 1 to the large displacement drawbench of 5 each described constant-resistance anchor poles, it is characterized in that, described hydraulic pump is hydraulic hand-pump, and described hydraulic pump is connected to described hollow hydraulic cylinder by hydraulic tube.
7. according to claim 2 to the large displacement drawbench of 5 each described constant-resistance anchor poles, it is characterized in that, described support column and reference column bottom all have respectively the height control heel piece, and described height control heel piece comprises spire and is fixed in the base of described spire bottom; The top of described spire is external thread part, and the bottom is for being subjected to external force to drive the force section that produces rotation; Described support column and reference column bottom hollow, and all have the internal thread that cooperates described external thread part.
8. the large displacement drawbench of constant-resistance anchor pole according to claim 7, it is characterized in that, described support column is connected the top and is had the top link that connects the two with reference column, described link is packed on described support column and the reference column by securing member, and described top link and described bottom link are truss structure.
9. the using method such as drawbench as described in claim 7 or 8 is characterized in that, comprises step:
One, erects described support column and reference column, regulate the adjustment heel piece of described support column, described support column is supported in the tunnel;
Two, rotate described reference column, make described reference column and support column and treat that anchor pole that drawing detects is in same plane;
Three, regulate the adjustment heel piece of described reference column, described reference column is supported in the tunnel;
Four, by described anchor ear is installed described rotary seat is adjusted to the position that correspondence is treated drawing detection anchor pole;
Five, adjust the angle that described rotary seat is assemblied in described anchor ear stationary shaft, make described rotary seat correspondence treat that drawing detects the angle of anchor pole;
Six, the described hydraulic pump of operation utilizes the described anchor pole of described hollow hydraulic cylinder drawing.
10. using method as claimed in claim 9 is characterized in that, in the described step 2, screws described support column adjustment heel piece by rotating described reference column.
CN201210448663.0A 2012-11-09 2012-11-09 Large-displacement drawing machine for constant-resistance anchor tie and usage method thereof CN102944477B (en)

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CN109187197A (en) * 2018-08-27 2019-01-11 张冲 A kind of construction anchor bolt anti-drawing strength detection device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103267681A (en) * 2013-04-25 2013-08-28 同济大学 Method and device for measuring oil volume elastic modulus
CN109187197A (en) * 2018-08-27 2019-01-11 张冲 A kind of construction anchor bolt anti-drawing strength detection device

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