Hydraulic support withdrawing trailer for coal mine

Abstract

The hydraulic support withdrawing trailer for the coal mine relates to the technical field of underground coal mine transport vehicles and comprises a trailer body, the trailer body is provided with an advancing mechanism, a dragging mechanism and a plurality of supporting mechanisms, the advancing mechanism is arranged at the bottom of the trailer body, the dragging mechanism is arranged at the head of the trailer body, and the supporting mechanisms are evenly distributed on the peripheral side of the trailer body. A driving mechanism for driving the advancing mechanism, the dragging mechanism and the supporting mechanisms to act is arranged in the vehicle body; the battery mechanism is arranged at the tail of the vehicle body and serves as a tail balance weight of the vehicle body, the battery mechanism is electrically connected with the driving mechanism, the battery mechanism is adopted to replace a traditional power source, zero-emission and low-noise operation can be achieved, the development direction of intelligent green mines is met, the balance weight of the whole machine can be optimized through reasonable layout of the battery mechanism, and flexibility is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine underground transport vehicles, in particular to a hydraulic support withdrawing trailer for coal mines. BACKGROUND

[0002] The hydraulic support withdrawing trailer for coal mines is a key equipment for hydraulic support removal, towing and direction changing operation of fully mechanized working face in coal mine underground. The device usually works in a space-limited, uneven floor and poor working condition roadway, and its operation stability and maneuverability directly affect the withdrawal efficiency and safety. The traditional traction machine adopts diesel engine driving or tow cable power supply mode. The diesel engine scheme has serious tail gas pollution, high noise and complex heat management, which does not meet the requirements of underground green mining and environmental protection. Although the tow cable power supply mode alleviates the pollution problem, the equipment moving range is limited due to the length and strength of the cable, and the cable is easy to be squeezed and torn, which brings safety hazards. At the same time, the cable winding and unwinding mechanism occupies the tail space of the vehicle body, affecting the overall layout and weight distribution of the machine.

[0003] Weight design is one of the core challenges of the structure design of such heavy engineering vehicles. The traction machine needs to provide huge traction and anti-torque when working, and its working mechanism is located at the front end of the machine body. When towing, lifting or rotating, a large forward tilting torque will be generated. If the weight is insufficient or distributed unreasonably, the machine will be unstable, the track ground contact pressure will be uneven, and the working capacity and safety of the equipment will be seriously restricted.

[0004] Therefore, it is urgent to innovate the power system and overall layout of the existing traction machine. SUMMARY

[0005] The purpose of the present application is to provide a hydraulic support withdrawing trailer for coal mines to solve the problems existing in the prior art. The battery mechanism is used to replace the traditional power source, which not only realizes zero emission and low noise operation, but also meets the development direction of intelligent green mine, and can optimize the weight distribution of the machine and ensure flexibility through reasonable layout of the battery mechanism.

[0006] To achieve the above purpose, the present application provides the following scheme: the present application provides a hydraulic support withdrawing trailer for coal mines, comprising: a vehicle body provided with a traveling mechanism, a towing mechanism and a plurality of supporting mechanisms, the traveling mechanism being arranged at the bottom of the vehicle body, the towing mechanism being arranged at the head of the vehicle body, and each supporting mechanism being uniformly distributed on the outer circumferential side of the vehicle body, and the vehicle body being internally provided with a driving mechanism for driving the traveling mechanism, the towing mechanism and each supporting mechanism to act; a battery mechanism arranged at the tail of the vehicle body and serving as the tail weight of the vehicle body, and the battery mechanism being electrically connected with the driving mechanism.

[0007] Optionally, the battery mechanism comprises: a battery bracket, which is detachably arranged at the tail of the vehicle body and suspends above the road surface; a battery pack, which is detachably arranged on the battery bracket and electrically connected with the driving mechanism.

[0008] Optionally, at least one tail counterweight is detachably arranged on the battery bracket.

[0009] Optionally, the tail counterweight is arranged on the bottom wall of the battery bracket.

[0010] Optionally, at least two head counterweight groups are detachably arranged on the top of the vehicle body, each of the head counterweight groups is arranged close to the towing mechanism and symmetrically distributed on both sides of the longitudinal center line of the vehicle body in the direction perpendicular to the running direction of the vehicle body.

[0011] Optionally, each of the head counterweight groups comprises a plurality of head counterweights, each of the head counterweights is stacked in the vertical direction and detachably mounted on the vehicle body.

[0012] Optionally, a driver cabin is arranged on the top of the vehicle body and close to the battery mechanism.

[0013] Optionally, a hydraulic component and an electric control box are arranged on the top of the vehicle body and uniformly distributed on both sides of the vehicle body in the direction perpendicular to the running direction of the vehicle body.

[0014] Optionally, the towing mechanism comprises: a rotating tower, which is rotatably arranged at the head of the vehicle body; a rotating oil cylinder, which extends in the running direction of the vehicle body, one end of which is hingedly connected to the vehicle body and the other end of which is hingedly connected to one side of the rotating tower; a telescopic boom, one end of which is hingedly connected to the top of the rotating tower and the other end of which extends away from one side of the rotating tower; an amplitude-changing oil cylinder, one end of which is hingedly connected to the bottom of the rotating tower and the other end of which is hingedly connected to the telescopic boom.

[0015] Optionally, the supporting mechanism comprises: a front supporting mechanism, which is arranged at the head of the vehicle body; a rear supporting mechanism, which is arranged between the tail of the vehicle body and the battery mechanism; a top supporting mechanism, which is arranged at the middle position of the top of the vehicle body.

[0016] The present application has the following technical effects compared with the prior art: The coal mine hydraulic support withdrawing trailer disclosed by the application travels to the required position in the roadway through a traveling mechanism, is supported at the position of the roadway pavement and the top wall of the roadway by a supporting mechanism to form stable support for the vehicle body, and drags the hydraulic support after being connected by a dragging mechanism. In the application, the battery mechanism is arranged at the tail position of the vehicle body. When the dragging mechanism drags the heavy object, the center of gravity of the whole coal mine hydraulic support withdrawing trailer moves forward, which is dangerous to overturn forward. The counterweight of the battery mechanism increases the weight of the tail of the vehicle body, pulls back the overall center of gravity of the coal mine hydraulic support withdrawing trailer to the stable range, and further ensures the stability and traction efficiency of the coal mine hydraulic support withdrawing trailer, so that the withdrawing operation can be safely performed, and the adaptability to different working scenes is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 The shaft side of the coal mine hydraulic support withdrawing trailer disclosed by the application Figure 1 ; Figure 2 The shaft side of the coal mine hydraulic support withdrawing trailer disclosed by the application Figure 2 ; Figure 3 The working schematic view of the coal mine hydraulic support withdrawing trailer disclosed by the application Among them, 1-vehicle body, 2-head counterweight block group, 3-electric control box, 4-pilot cabin, 5-battery bracket, 6-battery pack, 7-dragging mechanism, 8-front ground supporting mechanism, 9-hydraulic component, 10-top supporting mechanism, 11-tail counterweight block, 12-track structure, 13-rear ground supporting mechanism, 14-amplitude cylinder, 15-telescopic boom, 16-rotary tower, 17-rotary cylinder, 18-cabin top, 19-hydraulic support. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] The purpose of the present application is to provide a coal mine hydraulic support withdrawal trailer to solve the problems existing in the prior art, replace the traditional power source with a battery mechanism, realize zero emission and low noise operation, meet the development direction of intelligent and green mine, and optimize the counterweight of the whole machine and ensure flexibility through reasonable layout of the battery mechanism.

[0021] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0022] As shown in Figures 1 to 3 The present application provides a coal mine hydraulic support withdrawal trailer, which comprises a vehicle body 1 and a battery mechanism. The vehicle body 1 is provided with a traveling mechanism, a towing mechanism 7 and a plurality of supporting mechanisms. The traveling mechanism is arranged at the bottom of the vehicle body 1. Preferably, the traveling mechanism adopts a double-track structure 12, which is symmetrically distributed on both sides of the longitudinal center line of the vehicle body 1 along the direction perpendicular to the traveling direction of the vehicle body 1. The vehicle body 1 is supported by the double-track structure 12, and the double-track structure 12 supports the traveling of the vehicle body 1. The towing mechanism 7 is arranged at the head of the vehicle body 1. Each supporting mechanism is uniformly distributed on the outer circumferential side of the vehicle body 1. The vehicle body 1 is internally provided with a driving mechanism for driving the traveling mechanism, the towing mechanism 7 and each supporting mechanism. The battery mechanism is arranged at the tail of the vehicle body 1 and serves as the tail counterweight of the vehicle body 1. The battery mechanism is electrically connected with the driving mechanism. The whole vehicle body 1 replaces the transmission power source with the battery mechanism, realizes zero emission and low noise operation, and meets the development direction of intelligent and green mine.

[0023] The coal mine hydraulic support withdrawal trailer disclosed in the present application travels to the required position in the roadway through the traveling mechanism, is supported at the road surface of the roadway and the top wall position of the roadway by the supporting mechanism to form stable support for the vehicle body 1, and drags the hydraulic support 19 after being connected with the hydraulic support 19 by the towing mechanism 7. In the present application, the battery mechanism is arranged at the tail position of the vehicle body 1 to balance the overturning moment generated by the towing mechanism 7. When the towing mechanism 7 drags the heavy object, the center of gravity of the whole coal mine hydraulic support withdrawal trailer will move forward, which is dangerous to overturn forward. The counterweight of the battery mechanism increases the weight of the tail of the vehicle body 1, pulls back the overall center of gravity of the coal mine hydraulic support withdrawal trailer to the stable interval, and further ensures the stability and traction efficiency of the coal mine hydraulic support withdrawal trailer, so that the withdrawal operation can be safely carried out, and the adaptability to different working scenes is improved.

[0024] In the embodiment, the traveling mechanism comprises a driving wheel, the driving mechanism comprises a traveling motor, a hydraulic motor and a hydraulic pump station for driving the driving wheel to rotate, the battery mechanism supplies power to the traveling motor, the traveling motor rotates to drive the corresponding hydraulic pump station of the hydraulic pump station, the hydraulic pump station converts mechanical energy into pressure energy of hydraulic oil, the high-pressure oil is delivered to the hydraulic motor, the hydraulic motor generates rotary torque and drives the driving wheel to rotate, thereby completing the forward and backward movement of the vehicle body 1. Preferably, the traveling motor drives a speed reducer, the speed reducer drives the driving wheel to rotate, and the driving wheel drives the track structure to travel.

[0025] In the embodiment, the driving mechanism further comprises a driving motor, an oil circuit and a hydraulic pump station for driving the support mechanism and the dragging mechanism 7 to act, the battery mechanism supplies power to the driving motor, the driving motor rotates to drive the corresponding hydraulic pump station of the hydraulic pump station, the hydraulic pump station converts mechanical energy into pressure energy of hydraulic oil, the high-pressure oil is delivered to the hydraulic oil cylinder matched with the support mechanism and the dragging mechanism 7 through the oil circuit, thereby completing the driving work of the support mechanism and the dragging mechanism 7.

[0026] In the embodiment, the hydraulic pump station, the traveling motor and the driving motor contained in the driving mechanism are arranged at the gravity center position in the vehicle body 1, so as to sufficiently reduce the influence on the overall stability of the vehicle body 1. The hydraulic motor contained in the driving mechanism is respectively arranged at each driving wheel and is symmetrically distributed along the longitudinal center line of the vehicle body 1, thereby further reducing the influence on the overall stability of the vehicle body 1. Preferably, four hydraulic motors are arranged in the two track structures, so as to further improve the traction capacity of the whole hydraulic support retracement trailer for coal mine.

[0027] In a specific embodiment, the battery mechanism comprises a battery bracket 5 and a battery pack 6; the battery bracket 5 is detachably arranged at the tail of the vehicle body 1 and is suspended above the road surface; the battery pack 6 is detachably arranged on the battery bracket 5 and is electrically connected with the driving mechanism; the battery bracket 5 bears the battery pack 6, so as to ensure the stability of the battery pack 6 and avoid damage of the battery pack 6 when the vehicle body 1 travels on a bumpy road section.

[0028] In the embodiment, a vertical sliding groove is arranged at the tail end of the vehicle body 1, a tail support structure is slidably arranged in the sliding groove in the vertical direction, a driving oil cylinder for driving the tail support structure to slide is arranged at the top end of the sliding groove, the driving oil cylinder is connected with the hydraulic pump station in the driving mechanism through the oil circuit, a hook is arranged on the tail support structure, and a pin shaft is arranged on the battery bracket 5. In the process of specifically installing the battery bracket 5, after the battery pack 6 is arranged on the battery bracket 5, the tail support structure is first driven by the driving oil cylinder to slide downward, then the tail support structure is hung on the hook through the pin shaft, and finally the tail support structure is driven by the driving oil cylinder to rise to the required position, thereby completing the installation of the battery bracket 5.

[0029] In the embodiment, the hook is arranged on the vehicle body 1, and the tail support structure is arranged below the hook. After the battery pack 6 is installed on the battery bracket 5, the tail support structure is first driven to slide downward by the driving oil cylinder, and then the tail support structure is driven to rise to the position of the hook by the driving oil cylinder after the battery bracket 5 is supported on the tail support structure, so that the pin shaft on the battery bracket 5 can be aligned with the hook to complete the installation.

[0030] In the embodiment, as preferred, a positioning pin is detachably inserted between the sliding groove of the vehicle body 1 and the battery bracket 5, so as to prevent the battery bracket 5 from easily shaking during the movement of the vehicle body 1.

[0031] In a specific embodiment, at least one tail counterweight 11 is detachably arranged on the battery bracket 5. By arranging the tail counterweight 11, when the weight of the battery bracket 5 and the battery pack 6 is not enough to offset the pushing force of the dragging mechanism 7 on the hydraulic support 19, the tail counterweight 11 can further adjust the weight of the tail of the vehicle body 1 to prevent the vehicle body 1 from overturning forward.

[0032] In the embodiment, according to the specific operation condition, the tail counterweight 11 can be increased or decreased to ensure the flexibility of adjusting the weight of the tail of the vehicle body 1.

[0033] In the embodiment, the tail counterweight 11 is arranged on the bottom wall of the battery bracket 5, so as to fully utilize the space of the bottom wall of the battery bracket 5, and avoid installing the tail counterweight 11 on both sides of the battery pack 6, which increases the width of the battery mechanism and affects the running and turning of the whole device.

[0034] In a specific embodiment, at least two head counterweight groups 2 are detachably arranged on the top of the vehicle body 1. Each head counterweight group 2 is arranged close to the dragging mechanism 7. By arranging the head counterweight group 2, the weight of the head of the vehicle body 1 can be adjusted to avoid the head of the vehicle body 1 from being tilted during the running or operation of the empty vehicle, so as to pull the overall center of gravity of the coal mine hydraulic support retraction trailer back to the stable interval. The two head counterweight groups 2 are symmetrically distributed on both sides of the longitudinal center line of the vehicle body 1 in the direction perpendicular to the running direction of the vehicle body 1. The head counterweight group 2 can be arranged on the middle position of the head of the vehicle body 1, which can avoid affecting the installation of the dragging mechanism 7, and can also uniformly distribute the weight of the head counterweight group 2 on both sides of the vehicle body 1 to ensure the balance of the weight of the head of the vehicle body 1, and further ensure the stability of the vehicle body 1.

[0035] In the embodiment, each head counterweight group 2 includes a plurality of head counterweights, each head counterweight is stacked in a vertical direction and is detachably installed on the vehicle body 1, so as to increase or decrease the head counterweights to adjust the weight of the whole head counterweight group 2 and realize the flexible adjustment of the weight of the head of the vehicle body 1.

[0036] In the embodiment, at least two first bolt holes are formed on the top of the vehicle body 1, each head counterweight in the same head counterweight group 2 is provided with a second bolt hole corresponding to each first bolt hole, the first bolt holes correspond to the corresponding second bolt holes of each head counterweight after the head counterweights are stacked, and the bolts are sequentially connected to the second bolt holes and the first bolt holes through matched bolts, so that the installation work of each head counterweight is completed, and the number of head counterweights is adjusted by connection or disconnection, so that the working effect of flexibly adjusting the head counterweight is achieved.

[0037] In a specific embodiment, the vehicle body 1 is provided with a cab 4 on the top, and the cab 4 is arranged close to the battery mechanism to realize the local operation of the whole coal mine hydraulic support retracting trailer through the cab 4. Of course, the cab 4 is not limited in the present application, and in some examples, the cab 4 can also not be provided, and the vehicle body 1 can be controlled by remote control. When remote control driving, the top 18 of the cab 4 can be folded or translated to be retracted, and the driving field of view is increased.

[0038] In the embodiment, the cab 4 is detachably connected with the top 18 to protect the driver through the top 18, or the top 18 is detached to expand the operation field of view of the driver; preferably, the top 18 is integrally of a foldable structure, one end of which is detachably connected to the main body of the cab 4, and the other end is hinged to the main body of the cab 4, so that when the vehicle is remotely controlled, the top 18 can be retracted to enable the remote control operator to have a better field of view.

[0039] In a specific embodiment, the vehicle body 1 is provided with hydraulic components 9 and an electric control box 3 on the top, and the hydraulic components 9 and the electric control box 3 are uniformly distributed on both sides of the vehicle body 1 along the direction perpendicular to the running direction of the vehicle body 1. For the distribution of the hydraulic components 9 and the electric control box 3, the weights on both sides of the vehicle body 1 are as close as possible to balance the weight of the vehicle body 1 and ensure the stability of the vehicle body 1 during running. Moreover, the hydraulic components 9 and the electric control box 3 are arranged at the top of the vehicle body 1, preferably above the track structure, so that the maintenance of the two can be more convenient. Of course, the installation of the hydraulic components 9 and the electric control box 3 is not limited to the top of the vehicle body 1, but can also be installed on the inner side of the vehicle body according to the actual situation. In the embodiment, to further balance the distribution of the weight of the vehicle body 1 before and after, the hydraulic components 9 and the electric control box 3 are arranged at the middle position of the top of the vehicle body 1.

[0040] In a specific embodiment, the pulling mechanism 7 comprises a slewing tower 16, two sets of slewing cylinders 17, an extendable boom 15 and two sets of luffing cylinders 14; the slewing tower 16 is rotatably installed at the head position of the vehicle body 1; the two sets of slewing cylinders 17 are symmetrically distributed on both sides of the longitudinal center line of the vehicle body 1 along the direction perpendicular to the travel direction of the vehicle body 1; the slewing cylinders 17 extend along the travel direction of the vehicle body 1, one end of which is hingedly connected to the vehicle body 1 and the other end of which is hingedly connected to one side of the slewing tower 16; one end of the extendable boom 15 is hingedly connected to the top position of the slewing tower 16 and the other end thereof extends away from one side of the slewing tower 16; the two sets of luffing cylinders 14 are symmetrically distributed on both sides of the longitudinal center line of the extendable boom 15; one end of the luffing cylinders 14 is hingedly connected to the bottom position of the slewing tower 16 and the other end thereof is hingedly connected to the extendable boom 15.

[0041] In a specific embodiment, the supporting mechanism comprises a front supporting mechanism 8, a rear supporting mechanism 13 and a top supporting mechanism 10; the front supporting mechanism 8 is arranged at the head position of the vehicle body 1; the rear supporting mechanism 13 is arranged between the tail position of the vehicle body 1 and the battery mechanism; and the top supporting mechanism 10 is arranged at the middle position of the top of the vehicle body 1.

[0042] In the present embodiment, the driver's cabin 4 and the top supporting mechanism 10 are arranged in sequence along the travel direction of the vehicle body 1 on the longitudinal center line of the vehicle body 1, and the head counterweight group 2 is distributed on both sides of the top supporting mechanism 10.

[0043] In the present embodiment, in combination with the embodiment in which the tail supporting structure is located below the hitch, the tail supporting mechanism can be directly used as the rear supporting mechanism 13 so as to be lowered and supported on the roadway of the mine roadway before the pulling mechanism 7 works.

[0044] Any adaptive changes according to actual needs are within the protection scope of the present application.

[0045] It should be noted that, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0046] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used for helping to understand the method of the present application and its core idea; meanwhile, for the general technical personnel in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed. In conclusion, the content of the present specification should not be understood as the limitation of the present application.

Claims

1. A hydraulic support retraction trailer for coal mines, characterized in that, include: The vehicle body is provided with a traveling mechanism, a towing mechanism and multiple support mechanisms. The traveling mechanism is located at the bottom of the vehicle body, the towing mechanism is located at the front of the vehicle body, and the support mechanisms are evenly distributed on the outer periphery of the vehicle body. The vehicle body is provided with a drive mechanism that drives the traveling mechanism, the towing mechanism and the support mechanisms. A battery mechanism is disposed at the rear of the vehicle body and serves as a rear counterweight for the vehicle body. The battery mechanism is electrically connected to the drive mechanism.

2. The hydraulic support retraction trailer for coal mines according to claim 1, characterized in that, The battery mechanism includes: The battery bracket is detachably mounted at the rear of the vehicle and suspended above the road surface; The battery pack is detachably mounted on the battery holder and electrically connected to the drive mechanism.

3. The hydraulic support retraction trailer for coal mines according to claim 2, characterized in that, At least one tail counterweight is detachably provided on the battery bracket.

4. The hydraulic support retraction trailer for coal mines according to claim 3, characterized in that, The tail counterweight is mounted on the bottom wall of the battery holder.

5. The hydraulic support retraction trailer for coal mines according to claim 1, characterized in that, At least two head counterweight groups are detachably provided on the top of the vehicle body. Each head counterweight group is located close to the towing mechanism and is symmetrically distributed on both sides of its longitudinal center line along the direction perpendicular to the vehicle body's travel.

6. The hydraulic support retraction trailer for coal mines according to claim 5, characterized in that, Each of the head counterweight groups includes multiple head counterweights, which are stacked vertically and can be detached and installed on the vehicle body.

7. The hydraulic support retraction trailer for coal mines according to claim 1, characterized in that, The vehicle body has a cockpit located on its roof, which is situated near the battery assembly.

8. The hydraulic support retraction trailer for coal mines according to claim 1, characterized in that, The vehicle body is equipped with hydraulic components and an electrical control box on its top, and the hydraulic components and the electrical control box are evenly distributed on both sides of the vehicle body along the direction perpendicular to the vehicle body's travel.

9. The hydraulic support retraction trailer for coal mines according to claim 1, characterized in that, The dragging mechanism includes: A slewing turret, which is rotatably mounted at the head position of the vehicle body; A rotary cylinder extends along the direction of travel of the vehicle body, with one end hinged to the vehicle body and the other end hinged to one side of the rotary tower. The telescopic boom has one end hinged to the top of the slewing tower and the other end extending toward the side away from the slewing tower. The luffing cylinder is hinged at one end to the bottom of the slewing tower and at the other end to the telescopic boom.

10. The hydraulic support retraction trailer for coal mines according to claim 1, characterized in that, The support mechanism includes: A front ground support mechanism is located at the front of the vehicle body; A rear ground support mechanism is disposed between the rear of the vehicle body and the battery mechanism; The roof support mechanism is located at the middle position of the top of the vehicle body.

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