CN202148115U - Flexible guide rail for mining elevator - Google Patents

Abstract

A flexible guide rail for a mining elevator is mainly composed of steel wire rope guide rails, a tension device, a connecting device and a steel wire rope guide sleeve. The upper ends of the steel wire rope guides rail are connected with the tension device arranged on an upper bearing beam located on a platform of a headframe, the other ends of the steel wire rope guide rails are connected with the connecting device arranged on a lower bearing beam of a headframe pit, and each steel wire rope guide rail vertically penetrates through the steel wire rope guide sleeve arranged on a lift car and counterpoise. The steel wire rope guide rails of the lift car are arranged on a single side or two sides, two or three steel wire rope guide rails are arranged on the single side, two steel wire rope guide rails with opposite angle, three steel wire rope guide rails with triangle and four steel wire rope guide rails with quadrangle are arranged on the two sides, and one steel wire rope guide rail is respectively arranged on two sides of the counterpoise. The flexible guide rail for the mining elevator is particularly applied to mining elevators for multilevel working surfaces of underground mining and adapted to the poor working environment in the pit and deformed mining elevators of a pit shaft. The flexible guide rail for the mining elevator is simple in structure, easy to process, reliable in performance and easy to install and maintain.

Description

Mining elevator flexible guide rail

Technical field

The utility model relates to a kind of mining elevator flexible guide rail, is particularly useful for the flexible guide rail and the layout of the multilevel driving surface of mine underground mining, also is applicable to the 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, and shaft deformation is serious, and 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 is prone to be 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, it is high that mining elevator is adopted rigid type guide rail cost, and cost is big.

Summary of the invention

Technical matters: the purpose of the utility model provide simple in structure, to be prone to processing, dependable performance, installation and maintenance simple, is applicable to the mining elevator flexible guide rail of the multilevel driving surface of mine underground mining.

Technical scheme: the mining elevator flexible guide rail of the utility model; Comprise carrier bar under the last carrier bar that is located on the crown platform and the down-hole pit; Be provided with respectively the fixedly steel rope guide rail of car and counterweight on said between carrier bar and the following carrier bar; The upper end of steel rope guide rail is fixing by the tightening device connection that is located on the carrier bar, and the lower end of steel rope guide rail connects fixing by the connecting device that is located at down on the carrier bar; The steel rope guide rail is provided with the fixedly interior car of well or fixedly the steel rope orienting sleeve of the interior counterweight of well.

The steel rope guide rail of described fixedly car is 2～4, and fixedly the steel rope guide rail of car is 2.

Beneficial effect: the utility model is simple in structure, be prone to processing, 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; Improve the speed that guide rail sets up in the pit shaft, reduced 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) the 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; For adapting to the guide rail layout of mining elevator in the different pit shafts in down-hole, mine rational layout is provided, has increased the safe reliability of car and counterweight operation.

Description of drawings

Fig. 1 is the mining elevator flexible guide rail arrangement structure scheme drawing of the utility model.

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

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

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

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

Fig. 6 is that the mining elevator flexible guide rail of the utility model 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 the embodiment of the utility model is done the into description of delegation:

Shown in Figure 1, the mining elevator flexible guide rail of the utility model, mainly the steel rope guide rail 1-2 between the carrier bar constitutes by carrier bar 3 under the last carrier bar 1 and the down-hole pit that are located on the crown platform A and about being located at.Be provided with respectively the fixedly steel rope guide rail 1-2 of car 2 and counterweight 5 on said between carrier bar 1 and the following carrier bar 3; The upper end of steel rope guide rail 1-2 connects fixing 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, perhaps the counter weight type through 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 up of wedge shape rope sling and rope sling screw rod.The lower end of steel rope guide rail 1-2 is fixing by the connecting device 1-4 connection that is located at down on the carrier bar 3, and connecting device 1-4 is made up 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 the upper-lower position of car 2 or goes up middle upper/lower positions; Steel rope orienting sleeve 1-3 is fixed on the upper-lower position of counterweight 4 both sides or goes up middle upper/lower positions, 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 5; Steel rope orienting sleeve 1-3 inside is inlaid with anti abrasive nylon or polyurethane material is processed.

Principle of work and working process: lean between the carrier bar 3 under carrier bar 1 and the down-hole pit on the crown platform A side of car 2 positions or relatively both sides steel rope guide rail 1-2 is set, and steel rope guide rail 1-2 is set in counterweight 5 both sides that car 2 relatively is provided with; 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 5 both sides are set respectively is 1.

Shown in Figure 3 like 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:

$q>\mathrm{\&alpha;}\&CenterDot;\frac{Q}{L_0-L}=\mathrm{\&alpha;}\&CenterDot;\frac{{\mathrm{<figure-callout\; id="4"\; label="K\; min"\; filenames="HDA0000074641940000021.png,HDA0000074641940000022.png"\; state="\{\{state\}\}">K</figure-callout>}}_{\min }}{4}\ln \frac{L_0}{L_0-L}---\left(3\right)$

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 an 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, confirm the tensile force of each root steel rope guide rail 1-2 again according to formula (1).

Claims (2)

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 respectively the fixedly steel rope guide rail (1-2) of car (2) and counterweight (5) on said between carrier bar (1) and the following carrier bar (3); The upper end of steel rope guide rail (1-2) is fixing by tightening device (1-1) connection that is located on the carrier bar (1), and the lower end of steel rope guide rail (1-2) connects fixing 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 the fixedly interior car (2) of well or fixedly the steel rope orienting sleeve (1-3) of the interior counterweight (4) of well.

2. mining elevator flexible guide rail according to claim 1 is characterized in that: the steel rope guide rail (1-2) of described fixedly car (2) is 2～4, and fixedly the steel rope guide rail (1-2) of car (2) is 2.

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