Roof support vehicle for open top area of ​​chute

Abstract

The present invention discloses a roof support vehicle for an empty top area of ​​a chute, which includes a mobile chassis; three support telescopic rods are fixed to the rear end of the mobile chassis, and each support telescopic rod is arranged at intervals along a moving direction perpendicular to the mobile chassis, and the telescopic ends of the support telescopic rods are connected to a support top beam; a main slide is fixed on the bottom of the compartment adjacent to the support telescopic rod in the compartment, and a main slide is slidably provided on the main slide. Advantages: The present invention controls the mobile chassis to move to the support position of the empty top area, controls the support telescopic rod to extend, so that the support top beam presses the top net against the top plate to achieve temporary support; anchor rods are supported by an anchor bolt machine provided on the main slide, and the position of the main slide is adjusted along the main slide to support anchor rods in rows along the top net on the top plate; until the top plate anchor rod support in the chute support area is completed; the present invention is easy to operate, can simultaneously achieve temporary top plate support and anchor rod threading operations, has high operating efficiency, and has a simple structure and low manufacturing cost.

Description

Technical field:

[0001] The invention relates to the technical field of coal mine equipment, in particular to a roof support vehicle in an empty top area of ​​a drift. Background technology:

[0002] When a fully-mechanized excavator or continuous mining machine is used to excavate the underground coal mine tunnel, the process mainly includes cutting, loading, transporting coal gangue, withdrawing the machine, temporary support of the empty top area, permanent support of the empty top area (i.e. laying mesh and supporting with anchor rods and cables), and finishing; the current processing methods for temporary support and permanent support of the empty top area are as follows:

[0003] After the tunneling machine is used for excavation, the front exploration beam is transported to the empty top area by a transport vehicle for temporary support. The temporary support takes about 30 minutes, and the support operation needs to be performed on the shovel of the tunneling machine, which is easy to slip, has low safety performance and operation efficiency, high labor intensity, and poor temporary support effect.

[0004] After the continuous mining machine is used to retreat after excavation, the large anchor bolter enters the empty top area. The large anchor bolter can only be equipped with two hydraulic pillars for temporary support. The spacing between the hydraulic pillars is about 3.5 meters. The density of temporary support is small, and it is difficult to ensure the strength of temporary support. The large anchor bolter needs to be moved once for each row of anchors, and anchor cable support operations cannot be carried out. The top wall anchor cable support can only be carried out by organizing personnel to climb behind the large anchor bolter, which is labor-intensive and inefficient. In addition, the large anchor bolter is expensive and large in size. The width of the large anchor bolter is 3.7 meters, while the width of the continuous mining machine is 3.3 meters. When the continuous mining machine retreats and the large anchor bolter advances, they need to pass each other. It is necessary to set up a passing chamber at the side every 80 meters or so, which increases the amount of tunnel excavation engineering.

[0005] In addition, the support materials used for temporary support and permanent support of the above two excavation methods need to be transported to the empty top area by transport vehicles, and then manually transported to carry out support work. The process is cumbersome, the workload is large, and the efficiency is low. Summary of the invention:

[0006] The object of the present invention is to provide a roof support vehicle for an empty top area of ​​a chute, which has a simple operation process, is conducive to improving operation efficiency and can significantly reduce manual labor intensity.

[0007] The present invention is implemented by the following technical scheme: a roof support vehicle for an empty top area of ​​a chute, which includes a mobile chassis; three or more supporting telescopic rods with telescopic ends facing upward are vertically fixed to the rear end top surface of the mobile chassis, and each of the supporting telescopic rods is arranged at intervals along a moving direction perpendicular to the mobile chassis, and the telescopic ends of the supporting telescopic rods are connected to a supporting top beam; a driving cab is provided on the front end top surface of the mobile chassis, and a car body that can be lifted up and down is provided on the top surface of the mobile chassis between the driving cab and the supporting telescopic rods; a main slide is fixed on the bottom of the car body adjacent to the supporting telescopic rods in the car body along the arrangement direction of each of the supporting telescopic rods, and a main slide seat is slidably provided on the main slide.

[0008] Furthermore, a supporting telescopic rod with a telescopic end facing downward and coaxially arranged with the supporting telescopic rod is fixed to the bottom surface of the mobile chassis.

[0009] Furthermore, a non-slip base is fixed to the telescopic end of the supporting telescopic rod.

[0010] Furthermore, a secondary slideway arranged parallel to the main slideway is fixed on the top surface of the rear end of the mobile chassis, the main slideway and the secondary slideway are placed on both sides of the supporting telescopic rod, and a secondary slide seat is slidably provided on the secondary slideway.

[0011] Furthermore, the rear end top surface of the mobile chassis is rotatably connected with a folding end plate, and the auxiliary slide is fixed to the upper plate surface of the folding end plate; a connecting strut is hinged between the lower plate surface of the folding end plate and the rear end surface of the mobile chassis, and the hinge axis of the connecting strut and the mobile chassis is arranged to move up and down along the rear end surface of the mobile chassis.

[0012] Furthermore, the car body includes the car body bottom, an isolation guardrail and two folding side guard plates; one of the folding side guard plates is rotatably connected to the two sides of the car body bottom corresponding to the two ends of the main slide, and a folding slide is fixed to the upper plate surface of each folding side guard plate, and the folding slide is hinged to the end corresponding to the main slide; a side support rod is hinged between the lower plate surface of the folding side guard plate and the side wall of the mobile chassis, and the hinge axis of the side support rod and the mobile chassis is arranged to move up and down along the side wall of the mobile chassis; the isolation guardrail is fixed to the edge of the car body bottom between the folding side guard plate and the cab, and the folding side guard plate is separately clamped to the isolation guardrail.

[0013] Furthermore, it also includes a support seat, a boom and a lifting push rod; the front end top surface of the mobile chassis is connected to the support seat through a slewing mechanism, a bracket is vertically fixed to the top surface of the support seat, and the top end of the bracket is hinged to one end of the boom; the bottom end of the lifting push rod is hinged to the support seat, and the telescopic end of the lifting push rod is hinged to the bottom surface of the boom.

[0014] Furthermore, the boom comprises two support plates with parallel plate surfaces relative to each other, and the two support plates are connected by a connecting plate; a guide slide is fixed on the opposite plate surfaces of each support plate, a telescopic push rod arranged parallel to the guide slide is fixed on the connecting plate between the two guide slides, a lifting assembly is erected between the two guide slides, the telescopic end of the telescopic push rod is fixedly connected to the lifting assembly, and the other end of the telescopic push rod is hinged to the top end of the boom.

[0015] Furthermore, the hoisting assembly includes a hoisting pin and two guide wheels sleeved on both ends of the hoisting pin; the two guide wheels are rollingly arranged along the corresponding guide slideways.

[0016] Furthermore, the slewing mechanism includes a hydraulic motor and a slewing support bearing with a gear ring; the inner ring of the slewing support bearing is fixedly connected to the mobile chassis, and the outer ring of the slewing support bearing is fixedly connected to the support seat; the hydraulic motor is fixed to the top surface of the mobile chassis, and the output shaft of the hydraulic motor is transmission-connected to the gear ring of the slewing support bearing.

[0017] Advantages of the present invention: the present invention controls the mobile chassis to move to the support position of the empty top area, and after the top net is laid, controls the support telescopic rod to extend, so that the support top beam presses the top net onto the top plate to achieve temporary support; then the anchor rods are supported by the anchor bolt machine arranged on the main slide, and by adjusting the position of the main slide along the main slide, it is possible to support the anchor rods in rows along the top net on the top plate; repeat the above operations until the top net laying, top plate and side anchor rod support in the longitudinal support area are completed; the present invention is easy to operate, can simultaneously achieve temporary top plate support and anchor rod threading operations, has high operating efficiency, and has a simple structure and low manufacturing cost; in addition, the carriage on the mobile chassis can also be used to place and transport support materials, equipment and related supplies required for operations in the tunnel. Description of the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of Example 1.

[0019] Figure 2 for Figure 1 Top view of the .

[0020] Figure 3 for Figure 1 A partial enlarged view of .

[0021] Figure 4 This is a schematic diagram of the usage status of Example 1.

[0022] Figure 5 This is a schematic diagram of the structure of Example 2.

[0023] Figure 6 for Figure 5 Schematic diagram of usage status.

[0024] Figure 7 This is a schematic diagram of the structure of Example 3.

[0025] Figure 8 for Figure 7 Top view of the .

[0026] Fig. 9 This is a schematic diagram of the usage status of Example 3.

[0027] Fig.10 This is a schematic diagram of the structure of Example 4.

[0028] Fig.11 for Fig.10 Top view of the .

[0029] Fig.12 for Fig.11 B view.

[0030] Fig.13 This is a schematic diagram of the usage status of the folding end plate described in Example 4 when it is unfolded.

[0031] Fig.14 This is a schematic diagram of the structure of Example 5.

[0032] Fig.15 for Fig.14 Top view of the .

[0033] Fig.16 for Fig.15 C-direction view.

[0034] Fig.17 for Fig.16 Schematic diagram of the structure when the middle folding side guard is unfolded.

[0035] Fig.18 This is a schematic diagram of the foldable side guard plate described in Example 5 when in use when unfolded.

[0036] Fig.19 This is a schematic diagram of the structure of Example 6.

[0037] Fig. 20 for Fig.19 Top view of the .

[0038] The components in the attached drawings are marked as follows: mobile chassis 1, main slide 2, main slide 3, main frame 3.1, connecting shaft 3.2, bearing 3.3, limiting wheel 3.4, extension support 4, support telescopic rod 5, support top beam 6, support telescopic rod 7, anti-skid base 8, cab 9, auxiliary slide 10, auxiliary slide 11, anchor machine connection 12, folding end plate 13, connecting support rod 14, folding slide 16, side support rod 17, support seat 18, boom 19, support plate 19.1, connecting plate 19.2, lifting push rod 20, slewing mechanism 21, hydraulic motor 21.1, slewing support bearing 21.2, bracket 22, guide slide 23, lifting assembly 24, lifting pin 24.1, guide wheel 24.2, carriage 25, carriage bottom 25.1, isolation guardrail 25.2, folding side guard plate 25.3, telescopic push rod 26, top plate 28, top net 29, anchor bolt machine 30, anchor bolt 31. Specific implementation method:

[0039] Example 1: Figures 1 to 4 As shown, the roof support vehicle for the empty top area of ​​the chute includes a mobile chassis 1; in this embodiment, the mobile chassis 1 is driven by a motor; a cab 9 is provided on the top surface of the front end of the mobile chassis 1, and the staff in the cab 9 can control the mobile chassis 1 to move to the specified position in the empty top area to facilitate construction operations; three extended pillars 4 are vertically fixed on the top surface of the rear end of the mobile chassis 1, and each extended pillar 4 is arranged at intervals along a direction perpendicular to the movement of the mobile chassis 1, and a supporting telescopic rod 5 with a telescopic end facing upward is coaxially fixed to the top of each extended pillar 4, and the supporting telescopic rod 5 is a hydraulic cylinder, which is controlled by a hydraulic system. The staff can control the extension and retraction of the supporting telescopic rod 5 by operating the handle corresponding to the hydraulic system in the cab 9; a supporting top beam 6 is horizontally fixed to the telescopic end of the supporting telescopic rod 5. In this embodiment, the supporting top Beam 6 uses an articulated top beam, which is a prior art. The specific structure will not be repeated here. The articulated top beam is hinged to the top end of the supporting telescopic rod 5. After the articulated top beam is rotated to a horizontal state, it is limited by a wedge pin to ensure that the articulated top beam can be in a horizontal state, so that the telescopic rod of the supporting telescopic rod 5 can be controlled to extend, thereby driving the supporting top beam 6 to support the top plate 28; the top surface of the mobile chassis 1 between the cab 9 and the supporting telescopic rod 5 is connected to a car 25 that can be lifted up and down through a lifting mechanism, and supporting materials for underground mines can be placed in the car 25. The driving mechanism of the scissor-type lift used in the lifting mechanism can realize the lifting and lowering of the driving car 25. Since it belongs to the prior art, it is not shown in the figure; according to the actual height of the tunnel roof, the car 25 is controlled to rise, so that the staff standing in the car 25 can work at an appropriate height.

[0040] A main slide 2 is fixed on the bottom 25.1 of the carriage 25 adjacent to the supporting telescopic rods 5 along the arrangement direction of each supporting telescopic rod 5, and a main slide seat 3 is slidably arranged on the main slide 2; in this embodiment, two main slide seats 3 are provided, which can be equipped with two anchor machines 30, which are respectively used to support anchor rods 31 and anchor cables; the main slide seat 3 includes a main frame 3.1, and a connecting shaft 3.2 is horizontally fixed between the inner walls on both sides of the main frame 3.1, and a bearing 3.3 is sleeved on the connecting shaft 3.2, and the bearing 3.3 is in rolling contact with the top surface of the main slide 2, and horizontally rotating limiting wheels 3.4 are symmetrically provided on the inner walls on both sides of the main frame 3.1 below the connecting shaft 3.2, and the two limiting wheels 3.4 are in rolling contact with the two side walls of the main slide 2. During the rolling process of the bearing 3.3 along the main slide 2, the limiting wheels 3.4 can ensure that the main frame 3.1 moves more smoothly.

[0041] An anchor machine connecting piece 12 is fixed to the top surface of the main slide 3. In the present embodiment, the anchor machine connecting piece 12 is an anti-backward limiting sleeve. In the present embodiment, the anchor machine 30 used for the support operation is an air-leg type anchor machine. The tip of the air-leg base of the air-leg type anchor machine is inserted into the anti-backward limiting sleeve to achieve a quick connection with the main slide 3. It is used to support anchor rods 31 and anchor cables on the top plate 28, and by adjusting the position of the main slide 3 along the main slide 2, it is possible to support rows of anchor rods 31 on the top plate 28.

[0042] Instructions for use: Place support materials, equipment and related supplies for underground operations in the carriage 25, control the mobile chassis 1 to move to the support position of the empty top area, lay the top net 29 on the top plate 28, and then control the support telescopic rod 5 to extend so that the support top beam 6 is pressed against the top plate 28 for temporary support, and at the same time form a safe working space under the support top beam 6; the staff stands in the carriage 25, and supports the anchor rods 31 and anchor cables through the anchor bolt machine 30 installed on the main slide 3, and by adjusting the position of the main slide 3 along the main slide 2, it is possible to support a row of anchor rods 31 on the top plate 28; while supporting each row of anchor rods 31 on the top plate 28, the staff on the carriage 25 can use the control hand The handheld anchor bolter 30 is used to support the anchor bolts 31 on the side of the tunnel; after completing the support of one row of anchor bolts 31 and anchor cables, the support telescopic rod 5 is controlled to retract, and then the chassis 1 is moved to the next support position, and another row of anchor bolts 31 and anchor cables are supported according to the above process, and the above operation is repeated until the top net 29 on the top plate 28 in the empty top area is laid and the anchor bolts 31 and anchor cables are supported; the present invention is easy to operate, and can realize temporary support of the top plate 28 by supporting the top beam 6, and at the same time, it can realize the support operation by inserting the anchor bolts 31 on the top plate 28. The whole operation process is simple, the labor intensity is low, and the support operation is safe and efficient. Moreover, the present invention does not require a large anchor bolter and an additional transport vehicle, has low cost, and occupies little space.

[0043] Example 2: Figure 5 and Figure 6As shown, the roof support vehicle for the empty top area of ​​the chute includes a mobile chassis 1; its overall structure is basically the same as that of the embodiment 1, except that it also includes a supporting telescopic rod 7, which is a hydraulic cylinder, and is controlled by a hydraulic system. The bottom surface of the mobile chassis 1 is fixed with a supporting telescopic rod 7 with a telescopic end facing downward and coaxially arranged with the supporting telescopic rod 5, and the telescopic end of the supporting telescopic rod 7 is fixed with an anti-skid base 8, and the bottom surface of the anti-skid base 8 is fixed with anti-skid teeth, and the friction with the ground is increased by the anti-skid base 8, so as to improve the overall The chassis 1 moves to the supporting position of the empty roof area, controls the supporting telescopic rod 5 to extend, and makes the supporting top beam 6 close to the top plate 28, to ensure that the gap between the supporting top beam 6 and the top plate 28 can be used to lay a row of top nets 29. After the top nets 29 are laid, the telescopic rods of the supporting telescopic rods 7 are controlled to extend downward, and the anti-slip base 8 is pressed against the ground. At the same time, the supporting top beam 6 can press the top net 29 against the top plate 28. By setting the supporting telescopic rod 7, the pressure during temporary support can be withstood to avoid damage to the vehicle body.

[0044] Example 3: Figures 7 to 9 As shown, the roof support vehicle for the empty top area of ​​the chute includes a mobile chassis 1; its overall structure is basically the same as that of Example 2, except that an auxiliary slide 10 arranged parallel to the main slide 2 is fixed on the top surface of the rear end of the mobile chassis 1, the main slide 2 and the auxiliary slide 10 are placed on both sides of the supporting telescopic rod 5, and an auxiliary slide 11 is slidably provided on the auxiliary slide 10, and the structure of the auxiliary slide 11 is the same as that of the main slide 3; by providing the auxiliary slide 10 and the auxiliary slide 11, after connecting the anchor bolt machine 30 to the auxiliary slide 11, the mobile chassis 1 can realize the support of two rows of anchor bolts 31 at the same position, and in addition, while the anchor bolt machine 30 supports the anchor bolts 31 along the auxiliary slide 10, the anchor bolt machine 30 on the main slide 2 can simultaneously support the anchor cable, thereby improving the working efficiency.

[0045] Example 4: Figures 10 to 13As shown, the top plate supporting vehicle for the empty top area of ​​the chute includes a mobile chassis 1; its overall structure is basically the same as that of the embodiment 3, except that the top surface of the rear end of the mobile chassis 1 is rotatably connected with a folding end plate 13, and the auxiliary slide 10 is fixed on the upper plate surface of the folding end plate 13. The auxiliary slide 10 is arranged on the folding end plate 13, which is beneficial for the mobile chassis 1 to free up more space for the carriage 25 to place supporting materials, and when the auxiliary slide 10 is not in operation, the folding end plate 13 is folded up, which is beneficial for reducing the space occupied by the present invention; the mobile chassis 1 A slide groove with an opening facing outward is vertically fixed on the rear end face of the moving chassis 1, and guide grooves are respectively opened on the two side walls of the slide groove. A hinge shaft is passed through the two guide grooves. One end of the connecting strut 14 is hinged to the lower plate surface of the folding end plate 13, and the other end of the connecting strut 14 is sleeved on the hinge shaft between the two slide grooves. The hinge shaft is arranged to move up and down along the slide groove. When the hinge shaft moves to the bottom end of the guide groove, the folding end plate 13 is in a horizontal state. When the hinge shaft moves to the top end of the guide groove, the folding end plate 13 is in a vertical state.

[0046] In the present embodiment, after the anchor bolt machine 30 on the main slide 2 has installed a row of anchor bolts 31, it is first necessary to unfold the folding end plate 13, and keep the folding end plate 13 in a horizontal state under the support of the connecting strut 14, and then connect the anchor bolt machine 30 to the auxiliary slide 11 to install another row of anchor bolts 31; in the present embodiment, a hydraulic cylinder or an air cylinder can be used instead of the connecting strut 14 to drive the folding and unfolding of the folding end plate 13, wherein the two ends of the hydraulic cylinder are respectively hinged to the folding end plate 13 and the rear end face of the mobile chassis 1.

[0047] Example 5: Figures 14 to 18As shown, the top plate supporting vehicle of the empty top area of ​​the chute includes a mobile chassis 1; its overall structure is basically the same as that of the embodiment 4, except that it also includes a folding slide 16; the car 25 includes a car bottom 25.1, an isolation guardrail 25.2 and two folding side guard plates 25.3; a folding side guard plate 25.3 is rotatably connected to both sides of the car bottom 25.1 corresponding to the two ends of the main slide 2, and an isolation guardrail 25.2 is fixed to the edge of the car bottom 25.1 between the folding side guard plate 25.3 and the cab 9, and the folding side guard plate 25.3 is split and clamped with the isolation guardrail 25.2; a folding slide 16 is fixed to the upper plate surface of each folding side guard plate 25.3, and the folding slide 16 is opposite to the main slide 2 The corresponding ends are hinged, the two folding slides 16 are in the same plane with the main slide 2, and when the folding slide 16 is in a horizontal state, the top surface of the folding slide 16 is flush with the top surface of the main slide 2; a side support rod 17 is hinged between the lower plate surface of the folding side guard plate 25.3 and the side wall of the mobile chassis 1, and the hinge axis of the side support rod 17 and the mobile chassis 1 is hinged and arranged to move up and down along the side wall of the mobile chassis 1. The specific structure is the same as the connection method of the connecting support rod 14 in Example 4, and will not be repeated here; in this embodiment, after the folding side guard plate 25.3 is unfolded, the two folding slides 16 are used to extend the sliding distance of the main slide 3, increase the number of anchor rods 31 arranged in rows, and improve the working efficiency.

[0048] Example 6: Fig.19 and Fig. 20 As shown, the top plate support vehicle for the empty top area of ​​the chute includes a mobile chassis 1; its overall structure is basically the same as that of Example 5, except that it also includes a support seat 18, a boom 19 and a lifting push rod 20; the top surface of the front end of the mobile chassis 1 is connected to the support seat 18 through a slewing mechanism 21, and a bracket 22 is vertically fixed to the top surface of the support seat 18, and the top end of the bracket 22 is hinged to one end of the boom 19; the bottom end of the lifting push rod 20 is hinged to the support seat 18, and the telescopic end of the lifting push rod 20 is hinged to the bottom surface of the boom 19; the slewing mechanism 21 includes a hydraulic motor 21.1 and a slewing support bearing 21.2 with a gear ring; the inner ring of the slewing support bearing 21.2 is fixedly connected to the mobile chassis 1, and the slewing support bearing 21.2 is fixedly connected to the mobile chassis 1. The outer ring of 21.2 is fixedly connected to the support seat 18; a hydraulic motor 21.1 is fixed to the top surface of the mobile chassis 1, and the output shaft of the hydraulic motor 21.1 is transmission-connected to the gear ring of the slewing support bearing 21.2; the cab 9 is arranged on the top surface of the support seat 18. In this embodiment, the hydraulic motor 21.1 and the lifting push rod 20 are both controlled by the hydraulic system. The staff can control the hydraulic motor 21.1 and the lifting push rod 20 by operating the handle corresponding to the hydraulic system in the cab 9; in this embodiment, by controlling the slewing mechanism 21 and the lifting push rod 20, it is convenient to quickly load and unload the supporting materials, equipment and related materials on the carriage 25, improve the working efficiency, and reduce the labor intensity of manual handling.

[0049] The boom 19 includes two support plates 19.1 with parallel surfaces, and the two support plates 19.1 are connected by a connecting plate 19.2; a guide slide 23 is fixed to the opposite plate surface of each support plate 19.1, and a telescopic push rod 26 arranged parallel to the guide slide 23 is fixed to the connecting plate 19.2 between the two guide slides 23, and a hoisting assembly 24 is set between the two guide slides 23, and the hoisting assembly 24 includes a hoisting pin 24.2 and two sleeves arranged at both ends of the hoisting pin 24.1. Guide wheels 24.2, two guide wheels 24.2 are set to roll along the corresponding guide slides; the telescopic end of the telescopic push rod 26 is fixedly connected to the lifting pin 24.1 of the lifting assembly 24, and the other end of the telescopic push rod 26 is hinged to the top of the boom 19; the middle part of the lifting pin 24.1 is connected to the loading and unloading materials, which is convenient for lifting. By controlling the extension and retraction of the telescopic push rod 26, the guide wheel 24.2 moves along the guide slide 23, which is convenient for adjusting the position of the lifting assembly 24, which is more conducive to the rapid realization of material lifting operations.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Roof support vehicle for the empty top area of ​​the drift, characterized in that: It includes a mobile chassis; More than three supporting telescopic rods with telescopic ends facing upward are vertically fixed to the top surface of the rear end of the mobile chassis, and each of the supporting telescopic rods is arranged at intervals perpendicular to the moving direction of the mobile chassis, and the telescopic ends of the supporting telescopic rods are connected to the supporting top beam; A cab is provided on the front top surface of the mobile chassis, and a carriage that can be lifted up and down is provided on the top surface of the mobile chassis between the cab and the supporting telescopic rod; A main slide is fixed on the bottom of the carriage adjacent to the supporting telescopic rods in the carriage along the arrangement direction of the supporting telescopic rods, and a main slide seat is slidably provided on the main slide; A supporting telescopic rod with a telescopic end facing downward and coaxially arranged with the supporting telescopic rod is fixed on the bottom surface of the mobile chassis; An auxiliary slideway is fixed on the top surface of the rear end of the mobile chassis and is arranged parallel to the main slideway. The main slideway and the auxiliary slideway are placed on both sides of the supporting telescopic rod. An auxiliary slide seat is slidably arranged on the auxiliary slideway. The rear end top surface of the mobile chassis is rotatably connected with a folding end plate, and the auxiliary slide is fixed to the upper plate surface of the folding end plate; a connecting strut is hinged between the lower plate surface of the folding end plate and the rear end surface of the mobile chassis, and the hinge axis of the connecting strut and the mobile chassis is arranged to move up and down along the rear end surface of the mobile chassis.

2. The top plate support vehicle for the empty top area of ​​the chute according to claim 1 is characterized in that: The telescopic end of the supporting telescopic rod is fixed with an anti-skid base.

3. The top plate support vehicle for the empty top area of ​​the chute according to claim 1 or 2, characterized in that: The carriage comprises the carriage bottom, an isolation guardrail and two folding side guard plates; A folding side guard plate is rotatably connected to the two sides of the bottom of the vehicle corresponding to the two ends of the main slide, and a folding slide is fixed to the upper plate surface of each folding side guard plate, and the folding slide is hinged to the end corresponding to the main slide; a side support rod is hinged between the lower plate surface of the folding side guard plate and the side wall of the mobile chassis, and the hinge axis of the side support rod and the mobile chassis is arranged to move up and down along the side wall of the mobile chassis; The isolation guardrail is fixed to the edge of the bottom of the compartment between the folding side guard plate and the cab, and the folding side guard plate is separately clamped with the isolation guardrail.

4. The top plate support vehicle for the empty top area of ​​the chute according to claim 3 is characterized in that: It also includes a support seat, a boom and a lifting push rod; the front end top surface of the mobile chassis is connected to the support seat through a slewing mechanism, a bracket is vertically fixed to the top surface of the support seat, and the top end of the bracket is hinged to one end of the boom; the bottom end of the lifting push rod is hinged to the support seat, and the telescopic end of the lifting push rod is hinged to the bottom surface of the boom.

5. The top plate support vehicle for the empty top area of ​​the chute according to claim 4, characterized in that: The boom includes two support plates with parallel plate surfaces relative to each other, and the two support plates are connected by a connecting plate; a guide slide is fixed to the plate surfaces relative to each support plate, a telescopic push rod parallel to the guide slide is fixed to the connecting plate between the two guide slides, a lifting assembly is erected between the two guide slides, the telescopic end of the telescopic push rod is fixedly connected to the lifting assembly, and the other end of the telescopic push rod is hinged to the top end of the boom.

6. The roof support vehicle for the empty top area of ​​the drift according to claim 5, characterized in that: The hoisting assembly comprises a hoisting pin and two guide wheels sleeved on both ends of the hoisting pin; the two guide wheels are arranged to roll along the corresponding guide slideways.

7. The top plate support vehicle for the empty top area of ​​the chute according to claim 4, characterized in that: The slewing mechanism includes a hydraulic motor and a slewing support bearing with a gear ring; the inner ring of the slewing support bearing is fixedly connected to the mobile chassis, and the outer ring of the slewing support bearing is fixedly connected to the support seat; the hydraulic motor is fixed to the top surface of the mobile chassis, and the output shaft of the hydraulic motor is drivingly connected to the gear ring of the slewing support bearing.

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