CN108035757B - A kind of travelling hydraulic support having auxiliary balance and driving capability of escaping - Google Patents

Abstract

A walking hydraulic support with auxiliary balance and escape drive capabilities, including an advance support hydraulic support, a crawler-type walking chassis, and a support auxiliary balance and escape drive mechanism, the advance support hydraulic support is fixed on the crawler-type walking chassis, and the support The auxiliary balance and escape drive mechanism is installed at the front end of the crawler-type walking chassis; the bracket auxiliary balance and escape drive mechanism includes the active track wheel, the first driven track wheel, the second driven track wheel, the auxiliary driven track wheel, and the track wheel support Frame, driving motor and track; the driving track wheel and the first and second driven track wheels are distributed on the track wheel support frame in a triangle, and several auxiliary driven track wheels are arranged in a straight line between the first and second driven track wheels Between the driving wheel shaft of the driving track wheel and the crawler-type walking chassis, a hydraulic lifting mechanism is installed; the power output by the driving track wheel is synchronously transmitted to the first driven track wheel, the second driven track wheel and the auxiliary driven track wheel through the track. Moving track wheels.

Description

A Walking Hydraulic Support with Auxiliary Balance and Escape Drive Capabilities

technical field

The invention belongs to the technical field of coal mine machinery, in particular to a walking hydraulic support with auxiliary balance and escape drive capability.

Background technique

At present, there are mainly two types of advanced support methods used in the fully mechanized mining face of coal mine roadways. The first is to use a single hydraulic support with hinged roof beams for advanced support, and the second is to directly use ordinary advanced support. Hydraulic support for advanced support.

For the first type of advance support method, not only the disadvantages of low support strength and small support area, but also the disadvantages of high labor intensity, low operation efficiency and high risk of returning to the column.

For the second advanced support method, although the above shortcomings can be overcome, the roof needs to be repeatedly supported during the movement of the advanced support hydraulic support, which is likely to cause the roof to break. Roof adaptability is poor. In addition, when the base of the advance support hydraulic support encounters the soft, muddy and broken working face floor, due to the high grounding specific pressure, the bottoming phenomenon of the support is particularly prone to occur, which leads to the support stability and safety of the support. sex decreased significantly.

In order to reduce the occurrence of the bottoming phenomenon of the support, the technicians added a crawler-type walking chassis to the advance support hydraulic support, and produced positive results, but it did not completely eliminate the occurrence of the bottoming phenomenon of the support, especially in the air along the During the mining of the remaining roadway, due to the influence of multiple mining operations, the unevenness and soft muddy brokenness of the bottom plate of the working face became more prominent. Even if the crawler-type walking chassis was added, the hydraulic support for the advance support still drilled the bottom from time to time, seriously It affects the coal mining efficiency of fully mechanized mining face.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides a walking hydraulic support with auxiliary balance and escape drive capability, which has strong adaptability when encountering uneven, soft, muddy and broken working face bottom plates, and can effectively ensure Support stability and safety during advance support, when faced with uneven, soft, muddy and broken working face floor, it can effectively reduce the grounding specific pressure of the crawler-type walking chassis, increase the grounding area, and adhere to the working face bottom plate The force is also significantly increased, which can not only assist in balancing the hydraulic support, but also enable the hydraulic support to quickly escape from the bottoming state even if the support suddenly bottoms out, greatly improving the operating efficiency of the hydraulic support.

In order to achieve the above object, the present invention adopts the following technical solutions: a walking hydraulic support with auxiliary balance and escape drive capability, including an advance support hydraulic support, a crawler-type walking chassis and a support auxiliary balance and escape drive mechanism; The support hydraulic support is fixedly arranged on the crawler-type traveling chassis, and the support auxiliary balance and escape drive mechanism is installed at the front end of the crawler-type traveling chassis.

The support auxiliary balance and escape driving mechanism adopts a crawler structure, including a driving track wheel, a first driven track wheel, a second driven track wheel, an auxiliary driven track wheel, a track wheel support frame, a drive motor and a track; The driving track wheel, the first driven track wheel and the second driven track wheel are distributed in a triangle on the track wheel support frame, the driving track wheel is located at the apex of the triangle, and the first driven track wheel and the second driven track wheel are in turn Distributed at the two lower corners of the triangle; the number of auxiliary driven track wheels is several, and several auxiliary driven track wheels are arranged in a straight line between the first driven track wheel and the second driven track wheel; The center of the track wheel is fixed with a driving wheel shaft, and the driving wheel shaft is connected with the track wheel support frame through a bearing, and a hydraulic lifting mechanism is installed between the driving wheel shaft and the crawler-type walking chassis; the driving motor is fixed on the track-type walking chassis Above, the motor shaft of the drive motor is fixedly connected to the driving wheel shaft; the centers of the first driven track wheel, the second driven track wheel and the auxiliary driven track wheel are all fixedly equipped with a driven wheel shaft, and the driven wheel shaft and the track The wheel support frame is connected by bearings; the track is set on the outside of the driving track wheel, the first driven track wheel, the second driven track wheel and the auxiliary driven track wheel, and the power output by the driving track wheel is synchronously transmitted to the first track wheel through the track. Driven track wheel, second driven track wheel and auxiliary driven track wheel.

An integrated electric control box is provided on the crawler-type walking chassis, and the advanced support hydraulic support, the crawler-type walking chassis and the support auxiliary balance and escape drive mechanism are uniformly controlled through the integrated electric control box.

Beneficial effects of the present invention:

Compared with the prior art, the present invention has stronger adaptability when encountering uneven, soft, muddy and broken working face bottom plates, and can effectively ensure the support stability and safety during advance support. When the floor of the working face is peaceful, soft, muddy and broken, it can effectively reduce the grounding specific pressure of the crawler-type walking chassis, increase the grounding area, and significantly increase the adhesion with the working face floor. The bottom phenomenon can also make the hydraulic support escape quickly from the bottom drilling state, and greatly improve the operating efficiency of the hydraulic support.

Description of drawings

Fig. 1 is a structural schematic diagram of a walking hydraulic support with auxiliary balance and escape drive capability of the present invention;

Fig. 2 is a structural schematic diagram of the bracket auxiliary balance and escape drive mechanism of the present invention;

Fig. 3 is a state diagram (side view angle) of the present invention when being in the bottoming phenomenon of the support;

Fig. 4 is a state diagram (front view angle) of the present invention when being in the bottoming phenomenon of the support;

In the figure, 1—advanced support hydraulic support, 2—crawler-type walking chassis, 3—support auxiliary balance and escape drive mechanism, 4—active track wheel, 5—first driven track wheel, 6—second driven track Wheel, 7—auxiliary driven track wheel, 8—track wheel support frame, 9—drive motor, 10—crawler belt, 11—driving wheel shaft, 12—working surface top plate, 13—working surface bottom plate.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 and 2, a walking hydraulic support with auxiliary balance and escape drive capability includes an advance support hydraulic support 1, a crawler-type walking chassis 2 and a support auxiliary balance and escape drive mechanism 3; the advance support The protective hydraulic support 1 is fixedly arranged on the crawler-type traveling chassis 2 , and the support auxiliary balance and escape drive mechanism 3 is installed on the front end of the crawler-type traveling chassis 2 .

The support auxiliary balance and escape driving mechanism 3 adopts a crawler structure, including a driving track wheel 4, a first driven track wheel 5, a second driven track wheel 6, an auxiliary driven track wheel 7, a track wheel support frame 8, Drive motor 9 and crawler belt 10; Described driving track wheel 4, first driven track wheel 5 and second driven track wheel 6 are triangularly distributed on track wheel support frame 8, and driving track wheel 4 is positioned at the apex of triangle, the first A driven track wheel 5 and a second driven track wheel 6 are successively distributed at two lower corners of the triangle; the number of auxiliary driven track wheels 7 is several, and several auxiliary driven track wheels 7 are arranged in a straight line on the first driven track wheel. Between the moving track wheel 5 and the second driven track wheel 6; the center of the driving track wheel 4 is fixedly equipped with a driving wheel shaft 11, the driving wheel shaft 11 is connected with the track wheel support frame 8 through a bearing, and the driving wheel shaft 11 is connected to the crawler belt A hydraulic lifting mechanism is installed between the walking chassis 2; the driving motor 9 is fixed on the crawler walking chassis 2, and the motor shaft of the driving motor 9 is fixedly connected with the driving wheel shaft 11; the first driven track The centers of the wheel 5, the second driven track wheel 6 and the auxiliary driven track wheel 7 are all equipped with a driven wheel shaft, and the driven wheel shaft is connected with the track wheel support frame 8 through bearings; the track 10 is sleeved on the driving track wheel 4 , outside the first driven track wheel 5, the second driven track wheel 6 and the auxiliary driven track wheel 7, the power output by the driving track wheel 4 is synchronously transmitted to the first driven track wheel 5, the second driven track wheel through the track 10 Track wheel 6 and auxiliary driven track wheel 7.

An integrated electric control box is provided on the crawler-type walking chassis 2, and the advanced support hydraulic support 1, the crawler-type walking chassis 2, and the support auxiliary balance and escape drive mechanism 3 are uniformly controlled through the integrated electric control box.

Below in conjunction with accompanying drawing, the one-time use process of the present invention is illustrated:

When the working condition of the bottom plate of the working face is relatively flat, the support auxiliary balance and escape drive mechanism 3 does not need to be activated. Under the action of the hydraulic lifting mechanism, the support support balance and escape drive mechanism 3 is lifted off the ground as a whole. 2 Contact with the bottom plate of the working face can realize the conventional advanced support for the fully mechanized mining working face of the coal mine roadway.

As shown in Figures 3 and 4, when the working condition of the bottom plate of the working face is uneven, soft, muddy and broken, during the advance support of the fully mechanized mining face of the coal mine roadway, the bottoming phenomenon of the support happens to happen suddenly. In this case, the front crawler belt of the crawler-type walking chassis 2 has fallen into the depression of the bottom plate of the working surface, and the rear-end crawler belt and the driving wheel are separated from the ground. At this time, the driving wheel cannot provide enough driving force to make the crawler-type walking chassis 2 Moving on, causing the hydraulic mounts to not work properly.

At this time, it is necessary to control the action of the hydraulic lifting mechanism, and slowly lower the bracket auxiliary balance and escape drive mechanism 3 until the crawler belt 10 contacts the bottom plate of the working surface, and then start the drive motor 9 to drive the active crawler wheel 4 to rotate, and then pass through the crawler belt. 10 drives the first driven track wheel 5, the second driven track wheel 6 and the auxiliary driven track wheel 7 to rotate synchronously, and at the same time, the track belt 10 starts to perform the ground-grazing action, and effectively reduces the ground specific pressure of the crawler-type walking chassis, In this way, the grounding area is increased, and the adhesion with the bottom plate of the working face is improved at the same time, the purpose of assisting in balancing the hydraulic support is achieved, and the hydraulic support can quickly escape from the bottom drilling state.

The solutions in the embodiments are not intended to limit the scope of patent protection of the present invention, and all equivalent implementations or changes that do not deviate from the present invention are included in the patent scope of this case.

Claims (2)

1. a kind of travelling hydraulic support for having auxiliary balance and driving capability of escaping, it is characterised in that: including advance support Hydraulic support, crawler-type traveling chassis and bracket auxiliary balance and escape driving mechanism；The forepoling hydraulic support is fixed It is arranged on crawler-type traveling chassis, the bracket auxiliary balance and escape driving mechanism are mounted on crawler-type traveling chassis most Front end；The bracket auxiliary balance and escape driving mechanism use track structure, including drive sprocket, the first driven crawler belt Wheel, the second driven Athey wheel, the driven Athey wheel of auxiliary, crawler belt wheeling supporting frame, driving motor and crawler belt；The drive sprocket, First driven Athey wheel and the second driven Athey wheel is triangular in shape is distributed on crawler belt wheeling supporting frame, drive sprocket is located at triangle The vertex of shape, the first driven Athey wheel and the second driven Athey wheel are sequentially distributed two lower angle points in triangle；The auxiliary Driven Athey wheel quantity is several, and several driven Athey wheels of auxiliary are arranged in a linear in the first driven Athey wheel and the second driven shoe Between belt wheel；It is fixed with drive sprocket axle at the center of the drive sprocket, drive sprocket axle and crawler belt wheeling supporting frame pass through bearing It is connected, and adds hydraulic lifting mechanism between drive sprocket axle and crawler-type traveling chassis；The driving motor is packed in crawler belt In formula walking chassis, motor shaft and the drive sprocket axle of driving motor are fixedly connected with；The first driven Athey wheel, the second driven crawler belt Take turns and assist the center of driven Athey wheel to be fixed with follower shaft, follower shaft is connected with crawler belt wheeling supporting frame by bearing； The crawler belt is sleeved on outside drive sprocket, the first driven Athey wheel, the second driven Athey wheel and the driven Athey wheel of auxiliary, main The power of dynamic Athey wheel output is synchronized by crawler belt passes to the first driven Athey wheel, the second driven Athey wheel and the driven shoe of auxiliary Belt wheel.

2. a kind of travelling hydraulic support for having auxiliary balance and driving capability of escaping according to claim 1, special Sign is: integrated electric cabinet is provided on the crawler-type traveling chassis, by integrated electric cabinet to the hydraulic branch of advance support Frame, crawler-type traveling chassis and bracket auxiliary balance are uniformly controlled with escape driving mechanism.