CN102249130B - Flexible guide rail of mining elevator and arrangement method thereof - Google Patents

Abstract

The invention provides a flexible guide rail of a mining elevator and an arrangement method thereof. The flexible guide rail mainly consists of steel wire rope guide rails, a tensioning device, a connecting device and steel wire rope guide sleeves, wherein, the upper end of each steel wire rope is connected through the tensioning device arranged on an upper bearing beam on a platform of a well frame, the other end of each steel wire rope guide rail is connected through the connecting device arranged on a lower bearing beam in a pit of the well frame, and each steel wire rope guide rail vertically passes through the steel wire rope guide sleeves arranged on a car and a counterweight; and the steel wire rope guide rails are arranged at one side or two sides of the car, wherein, two or three guide rails are arranged at one side of the car, two, three and four guide rails are respectively arranged at opposite angles, three angles and four angles at the two sides of the car, and one guide rail is respectively arranged at two sides of the counterweight. The flexible guide rail provided by the invention is particularly applicable to the mining elevator in the case of multilevel working face mining in an underground mine, and is also applicable to the mining elevator in the case of a severe downhole working environment and shaft deformation; and the flexible guide rail has the advantages of simple structure, easy machining property and reliable performance, and is simple in installation and maintenance.

Description

Mining elevator flexible guide rail and method for arranging thereof

Technical field

The present invention relates to a kind of mining elevator flexible guide rail and method for arranging thereof, be particularly useful for flexible guide rail and the layout of the multilevel driving surface of mine underground mining, also be applicable to flexible guide rail and the layout of above ground structure.

Background technology

At present, underground works particularly well bore wall such as mine bears immense pressure, shaft deformation is serious, its rigid guideway is prone to lateral inclination, flexural deformation, radius off-set joint and local projection phenomenon, the elevator that depends on the low gap guide rail slides, rolling is led boots and easily is stuck, cause lift car to be stuck in the pit shaft, bring huge hidden danger for the safe operation of elevator, the people that takes advantage of in the car constitutes life safety hazard; Simultaneously in underground works, time-consuming in the rigid guideway I﹠M process, effort, for the thin engineering of pit shaft parietal layer, mining elevator is adopted rigid type guide rail cost height, and cost is big.

Summary of the invention

Technical matters: it is simple to the purpose of this invention is to provide simple in structure, easy processing, dependable performance, installation and maintenance, is applicable to mining elevator flexible guide rail and the method for arranging of the multilevel driving surface of mine underground mining.

Technical scheme: mining elevator flexible guide rail of the present invention, comprise carrier bar under the last carrier bar that is located on the crown platform and the down-hole pit, be provided with between carrier bar and the following carrier bar on described 2～4 fixedly car the steel rope guide rail, be provided with 2 fixedly steel rope guide rails of counterweight, fixedly the upper end of the steel rope guide rail of car and counterweight is connected and fixed by the tightening device that is located on the carrier bar, and the lower end is connected and fixed by the connecting device that is located at down on the carrier bar; The steel rope guide rail is provided with fixedly car or fixedly the steel rope orienting sleeve of counterweight.

Mining elevator flexible guide rail method for arranging of the present invention, on on the crown platform under carrier bar and the down-hole pit between the carrier bar by a side of car position or relatively both sides the steel rope guide rail is set, and in the counterweight both sides of car setting relatively the steel rope guide rail is set; Wherein: the steel rope guide rail that is arranged on car position one side is 2 or 3; The steel rope guide rail that is arranged on relative two side positions of car is 2,3 or 4, is located at respectively on the diagonal angle at four angles of car, on three angles or four angles; The steel rope guide rail that the counterweight both sides are set respectively is 1.

Beneficial effect: the present invention's processing simple in structure, easy, dependable performance, installation and maintenance are simple, be applicable to the layout of the mining cage guide of the multilevel driving surface of mine underground mining, also be applicable to the layout of mining cage guide under down-hole bad working environment and the shaft deformation condition, concrete advantage has:

(1) adopt the flexible guide rail steel rope to substitute the rigid guideway of conventional elevator, can play longitudinally guiding, the laterally beat constraint of car in promoting operational process, the mining cage guide system that is applicable to that the pit shaft lateral deformation of down-hole, mine is big, rigid guideway can't satisfy, improved the speed that guide rail sets up in the pit shaft, reduce the reinforcing grade of well bore wall, reduced the shaft building cost of investment;

(2) adopt the take-up device of carrier bar on the derrick to substitute the rigid guideway support that conventional elevator uses, when having solved mining elevator erection cost in the pit shaft of down-hole, mine effectively, the problem of effort and the flexible distortion of rigid guideway, radius off-set joint;

(3) boots are led in slip and the rolling of adopting the steel rope orienting sleeve to substitute conventional elevator, have improved mining lift car and counterweight traveling comfort;

(4) definite method of mining elevator flexible guide rail tensile force and the position method to set up of mining elevator flexible guide rail have been provided, improved the reasonableness of mining elevator flexible guide rail tensile force, provide rational method for arranging for adapting to the guide rail layout of mining elevator in the different pit shafts in down-hole, mine, increased the safe reliability of car and counterweight operation.

Description of drawings

Fig. 1 is mining elevator flexible guide rail arrangement structure scheme drawing of the present invention.

Fig. 2 is that mining elevator flexible guide rail of the present invention is arranged embodiment 1 scheme drawing.

Fig. 3 is that mining elevator flexible guide rail of the present invention is arranged embodiment 2 scheme drawings.

Fig. 4 is that mining elevator flexible guide rail of the present invention is arranged embodiment 3 scheme drawings.

Fig. 5 is that mining elevator flexible guide rail of the present invention is arranged embodiment 4 scheme drawings.

Fig. 6 is that mining elevator flexible guide rail of the present invention is arranged embodiment 5 scheme drawings.

Among the figure: go up carrier bar-1, car-2, following carrier bar-3, counterweight-4; Tightening device-1-1, steel rope guide rail-1-2, steel rope orienting sleeve-1-3, connecting device-1-4.

The specific embodiment

Below in conjunction with accompanying drawing embodiments of the invention are done the into description of delegation:

As shown in Figure 1, mainly the steel rope guide rail 1-2 between the carrier bar constitutes mining elevator flexible guide rail of the present invention by being located under last carrier bar 1 on the crown platform A and the down-hole pit carrier bar 3 and being located at up and down.Be provided with respectively the fixedly steel rope guide rail 1-2 of car 2 and counterweight 4 on described between carrier bar 1 and the following carrier bar 3, the upper end of steel rope guide rail 1-2 is connected and fixed by the tightening device 1-1 that is located on the carrier bar 1, tightening device 1-1 adopts hydraulic tensioning or the spring firmly beforehand means applies or the counter weight type by pit applies, tightening device 1-1 mainly is made up of rope locking machine and hydraulic actuating cylinder, be provided with steel rope guide rail 1-2 in the middle of the rope locking machine, and hold steel rope guide rail 1-2 tightly, its tensile force carries out tensioning by hydraulic actuating cylinder; Guide rail connecting device 3-4 can be made of wedge shape rope sling and rope sling screw rod.The lower end of steel rope guide rail 1-2 is connected and fixed by the connecting device 1-4 that is located at down on the carrier bar 3, and connecting device 1-4 is made of wedge shape rope sling and rope sling screw rod; Steel rope guide rail 1-2 is provided with the fixedly interior car 2 of well or fixedly the steel rope orienting sleeve 1-3 of the interior counterweight 4 of well, steel rope orienting sleeve 1-3 is fixed on upper-lower position or the upper, middle and lower position of car 2, steel rope orienting sleeve 1-3 is fixed on upper-lower position or the upper, middle and lower position of counterweight 4 both sides, and every steel rope guide rail 1-2 vertically passes the steel rope orienting sleeve 1-3 that is arranged on car 2 and the counterweight 4; Steel rope orienting sleeve 1-3 inside is inlaid with anti abrasive nylon or polyurethane material is made.

Mining elevator flexible guide rail method for arranging of the present invention: on the crown platform A under carrier bar 1 and the down-hole pit between the carrier bar 3 by a side of car 2 positions or relatively both sides steel rope guide rail 1-2 is set, and in counterweight 4 both sides that car 2 relatively arranges steel rope guide rail 1-2 is set; The steel rope guide rail 1-2 that is arranged on car 2 positions one side is 2 or 3; The steel rope guide rail 1-2 that is arranged on car 2 relative two side positions is 2,3 or 4, is located at respectively on the diagonal angle at 2 four angles of car, on three angles or four angles; The steel rope guide rail 1-2 that counterweight 4 both sides are set respectively is 1.

Shown in Figure 3 as Fig. 2, steel rope guide rail 1-2 is separately positioned on the bilateral of the one-sided and counterweight 4 of car 2, and the steel rope guide rail 1-2 of car 2 single-sided arrangement is 2 or 3, evenly divides to be located on car 2 one sides.

As shown in Figure 4, steel rope guide rail 1-2 is separately positioned on two diagonal angles of car of car 2 two sided, and steel rope guide rail 1-2 is 2.

As shown in Figure 5, steel rope guide rail 1-2 is separately positioned on three angles of car of car 2 two sided, and triangular in shape, steel rope guide rail 1-2 is 3.

As shown in Figure 6, steel rope guide rail 1-2 is separately positioned on four angles of car of car 2 two sided, is quadrangle, and steel rope guide rail 1-2 is 4.

During installation, the difference of the tightening force of flexible guide rail steel rope 1-3 is not less than 5% of average tightening force; When if the radical of car 2 or counterweight 4 both sides steel rope guide rail 1-2 has only 2, the tightening force of each root steel rope guide rail 1-2 equates; Car 2 and counterweight 4 both sides each steel rope guide rail 1-2 tightening force bottom satisfy the following formula formula:

$\mathrm{\&alpha;}\left[\frac{K_{\min }}{4}(L_0-L)\ln \frac{L_0}{L_0-L}\right]<Q<\mathrm{\&alpha;}(\frac{P}{n}-q\&CenterDot;L)---\left(1\right)$

In the formula:

α is the tensile force coefficient of correction, wherein, and α 〉=1;

Q is the tightening force of steel rope guide rail 1-2 lower end, N;

K _MinBe single wire rope guide rail 1-2 lateral stiffness coefficient minimum value, N/m;

L ₀Be the limit overhang length of steel rope guide rail 1-2, m;

L is the overhang length of steel rope guide rail 1-2, m;

P is the breaking force of single wire rope guide rail 1-2, N;

N is the safety factor of steel rope guide rail 1-2;

Q is the unit weight of steel rope guide rail 1-2, N/m.

Wherein:

The limit overhang length L of steel rope guide rail 1-2 ₀For:

$L_0=\frac{{\mathrm{\&sigma;}}_b}{n\&CenterDot;\mathrm{\&gamma;}}---\left(2\right)$

The unit weight of steel rope guide rail 1-2 satisfies:

$q>\mathrm{\&alpha;}\&CenterDot;\frac{Q}{L_0-L}=\mathrm{\&alpha;}\&CenterDot;\frac{{\mathrm{<figure-callout\; id="4"\; label="K\; min"\; filenames="HDA0000074636460000021.png,HDA0000074636460000022.png"\; state="\{\{state\}\}">K</figure-callout>}}_{\min }}{4}\ln \frac{L_0}{L_0-L}---\left(3\right)$

In the formula:

σ _bBe the tensile strength of steel rope guide rail 1-2, N/m ²

γ is the proportion of steel rope guide rail 1-2, N/m ³

Mining elevator with 200 meters dark mines is example, the tensile strength sigma of steel rope guide rail 1-2 _bBe 1180 * 10 ⁶N/m ², K _MinValue with reference to " safety regulations in coal mine " regulation value be K _Min＞500N/m (4 steel rope guide rail 1-2) or K _Min＞1000N/m (2 steel rope guide rail 1-2), safety factor n＞6 of steel rope guide rail 1-2, the proportion γ ≈ 83.79 * 10 of closed type steel rope ³N/m ³Get K _Min=600N/m (4 steel rope guide rail 1-2) or K _Min=1200N/m (2 steel rope guide rail 1-2), safety factor n=7 according to formula (1), obtains:

Q＞α (2.868 * 10 ⁴) N (4 steel rope guide rail 1-2)

Q＞α (5.736 * 10 ⁴) N (2 steel rope guide rail 1-2)

The unit weight that obtains the flexible guide rail steel rope according to formula (3) must satisfy:

Q＞α 13.38N/m (4 steel rope guide rail 1-2)

Q＞α 26.76N/m (2 steel rope guide rail 1-2)

Thereby carry out the selection of steel rope guide rail according to above-mentioned unit weight, determine the tensile force of each root steel rope guide rail 1-2 again according to formula (1).

Claims (1)

1. mining elevator flexible guide rail, comprise carrier bar (3) under the last carrier bar (1) that is located on the crown platform (A) and the down-hole pit, it is characterized in that: be provided with 2～4 fixedly steel rope guide rails (1-2) of car (2) between carrier bar (1) and the following carrier bar (3) on described, be provided with 2 fixedly steel rope guide rails (1-2) of counterweight (4), fixedly the upper end of the steel rope guide rail (1-2) of car (2) and counterweight (4) is connected and fixed by the tightening device (1-1) that is located on the carrier bar (1), and the lower end is connected and fixed by the connecting device (1-4) that is located at down on the carrier bar (3); Steel rope guide rail (1-2) is provided with fixedly car (2) or fixedly the steel rope orienting sleeve (1-3) of counterweight (4).

2. method for arranging of mining elevator flexible guide rail according to claim 1, it is characterized in that: in a side of leaning on car (2) position under the last carrier bar (1) on the crown platform (A) and the down-hole pit between the carrier bar (3) or relative both sides steel rope guide rail (1-2) is set, and in counterweight (4) both sides of car (2) setting relatively steel rope guide rail (1-2) is set; Wherein: the steel rope guide rail (1-2) that is arranged on car (2) position one side is 2 or 3; The steel rope guide rail (1-2) that is arranged on relative two side positions of car (2) is 2,3 or 4, is located at respectively on the diagonal angle at (2) four angles of car, on three angles or four angles; The steel rope guide rail (1-2) that counterweight (4) both sides are set respectively is 1.

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