A mine hydraulic mobile train set running across a belt conveyor and a self-moving method thereof

Abstract

This invention relates to a self-moving method for a mine hydraulic mobile train unit operating across a conveyor belt, belonging to the technical field of mine train units. It includes an anchoring power car and a driven train unit connected by a pushing jack. It also includes a lifting assembly, a bottom-lifting slipper assembly, and a top-support assembly. The bottom-lifting slipper assembly includes a bottom-lifting jack, slipper components, and an adjustment mechanism. The slipper components consist of three sequentially hinged slipper parts connected in series. The adjustment mechanism can drive the three slipper parts to synchronously switch to a horizontal support state, or to form an inverted V-shaped support with a central upward convexity. This invention achieves an automated self-moving process of anchoring, pushing, and switching support through the coordinated action of the anchoring power car, the pushing jack, and the bottom-lifting slipper assembly. It eliminates the need for winch traction and manual track laying and adjustment. Each movement requires only 1-2 personnel to complete via remote control or manual operation, effectively reducing labor costs compared to traditional methods.

Description

Technical Field

[0001] This invention relates to the field of mining train technology, and in particular to a mining hydraulic mobile train that runs across a belt conveyor and its self-moving method. Background Technology

[0002] In coal mining operations, the roadway serves as the core passage for coal transportation, equipment placement, and personnel passage. It is necessary to simultaneously deploy belt conveyors (responsible for continuous coal transportation) and equipment train sets (carrying key electrical and hydraulic equipment such as transformers, switches, and pump stations). As the working face advances, the equipment train sets need to be moved forward frequently to maintain a reasonable working distance from the working face. Their movement efficiency and safety stability directly affect the continuity of coal mine production and the safety of underground operations.

[0003] As coal mining extends to deeper levels and undergoes intelligent transformation, the speed of face advancement is gradually increasing. Equipment train sets need to be frequently moved forward to maintain a reasonable working distance from the face, and their movement efficiency and safety stability determine the continuity of coal mine production. However, traditional equipment train set movement relies on winch traction combined with manual assistance, which has the following drawbacks: Firstly, it requires a large number of workers to manually disassemble the tracks, adjust the train's posture, and re-lay and fix the tracks, resulting in high labor intensity per worker and long time consumption per movement, severely restricting mining efficiency. Secondly, the narrow space in the roadway (mostly 4-5m wide) and the parallel arrangement of the belt conveyor and train set restrict the working space, making it prone to equipment collisions and track deviations during manual operation. Especially in soft ground or undulating roadways, the train set is prone to sinking or derailment, further increasing operational risks and adjustment costs. Based on this, this paper proposes a mine hydraulic mobile train set that operates across belt conveyors and its self-moving method. Summary of the Invention

[0004] To overcome the problems existing in related technologies, the present invention provides a mine hydraulic mobile train set that runs across a belt conveyor and its self-moving method. Through the coordinated action of anchoring the power car, pushing the jack and lifting the bottom slipper assembly, an automated self-moving process of anchoring-pushing-switching support is realized.

[0005] To achieve the above objectives, the present invention provides a mine hydraulic mobile train unit that operates across a belt conveyor, comprising an anchoring power car and a driven train unit, wherein the anchoring power car and the driven train unit are connected by a pushing jack, and both the anchoring power car and the driven train unit are equipped with liftable rails, and further comprising:

[0006] Lifting assembly, used for lifting the frame of a flatbed truck;

[0007] The bottom-lifting sliding shoe assembly is provided with at least two sets of bottom-lifting sliding shoe assemblies for both the anchoring power car and the driven train set. The bottom-lifting sliding shoe assembly includes a bottom-lifting jack, a sliding shoe component, and an adjustment mechanism. When the bottom-lifting jack drives the sliding shoe component to touch the ground for support, the track achieves a ground-lifting action through its matching telescopic drive component. The sliding shoe component is composed of three sliding shoe parts that are hinged in sequence in series. The adjustment mechanism can drive the three sliding shoe parts to switch to a horizontal support state synchronously, or make the three sliding shoe parts form an inverted V-shaped support part with a convex center.

[0008] The jacking assembly, installed on the flatbed car frame, extends vertically and abuts against the top or side support structure of the roadway after the equipment train stops and completes its positioning, to prevent the train from running away unexpectedly.

[0009] Preferably, the lifting slipper assembly further includes a cross seat, a connecting strip passing through the cross seat, and the slipper component is installed at the bottom end of the connecting strip.

[0010] Preferably, the slipper component includes a first support plate, a second support plate, and a third support plate that are hinged together in sequence, with the first support plate fixed to the bottom end of the connecting strip.

[0011] Preferably, the adjustment mechanism includes:

[0012] The first telescopic rod is horizontally embedded in the mounting cavity opened inside the first support plate, and the output end of the first telescopic rod is fixed with a concave strip extending to the outside of the first support plate.

[0013] The guide bar has one end fixed to the end of the concave bar, and the guide bar has a first rack portion and a second rack portion, wherein the first rack portion is vertically and vertically connected to the second rack portion;

[0014] The third gear is fixed at the end of the hinge shaft between the first support plate and the second support plate, and the first rack part meshes with the third gear from the lower end;

[0015] The fourth gear is fixed to the end of the hinge shaft between the second and third support plates, and the second rack part meshes with the fourth gear from the top.

[0016] Preferably, a groove is provided at one end of the first rack portion near the second rack portion, a first spring is connected in the groove, and a connecting rod is connected between the top of the first spring and the end of the second rack portion, the connecting rod being located in the groove.

[0017] Preferably, the lifting shoe assembly further includes a deflection mechanism. There are two connecting bars. The deflection mechanism includes a motor mounted on the upper end face of the cross seat. A drive gear and a second gear are respectively mounted on the two connecting bars through a connecting shaft. A first gear meshes between the drive gear and the second gear. The output end of the motor is connected to the connecting shaft of the drive gear.

[0018] Preferably, the lifting assembly includes a lifting jack, the top of which is equipped with an upper support, and the upper end of the upper support is fixed to the flatbed frame.

[0019] Preferably, the girder assembly includes:

[0020] A jacking jack is installed on the flatbed truck frame;

[0021] The top plate is fixed to the top of the jack.

[0022] Preferably, the top plate is provided with a receiving groove, the receiving groove is provided with a movable top bar and a second telescopic rod, the lower end of the movable top bar is provided with a pushing slope at the middle, and a second spring is connected between the lower end face of the movable top bar and the bottom of the receiving groove. The output end of the second telescopic rod is equipped with a push bar, and the top end of the push bar is provided with a squeezing slope that is adapted to the pushing slope.

[0023] In another aspect, the present invention provides a self-moving method using a mine hydraulic mobile train set operating across a belt conveyor as described above, comprising the following steps:

[0024] S1. Activate the bottom lifting slipper assembly, causing the bottom lifting jack of the anchoring power car to retract the slipper component. The track is brought to the ground through the matching telescopic drive component. At the same time, the bottom lifting jack of the driven train set moves, causing the slipper component to touch the ground and the track to lift off the ground.

[0025] S2. Control the extension of the push jack to move the frame of the anchoring power car and the track of the driven train group forward. Then adjust the lifting slipper assembly so that the slipper of the anchoring power car touches the ground and the track is off the ground, and the slipper of the driven train group is off the ground and the track touches the ground.

[0026] S3. The column extends out and, together with the diagonal bracing beam, forms a top-to-bottom anchored support;

[0027] S4. Push the jacks back, the driven train group moves forward, and the anchored power car moves forward at the same time;

[0028] S5. Retract the column and the train group moves forward one step. Repeat S1-S4 to achieve continuous self-movement.

[0029] The technical solution provided by this invention may include the following beneficial effects:

[0030] 1. In this invention, the coordinated action of the anchoring power vehicle, the pushing jack and the lifting slipper assembly realizes the automated self-moving process of anchoring-pushing-switching support. It does not rely on winch traction and manual track laying and adjustment. Each movement only requires 1-2 people to complete the operation by remote control or manual operation. Compared with the traditional mode, the labor cost is effectively reduced and the average labor intensity per person is significantly reduced.

[0031] 2. In this invention, the sliding shoe component in the bottom-lifting sliding shoe assembly consists of three sequentially hinged support plates. The adjustment mechanism can flexibly switch between horizontal support and inverted V-shaped support. In hard-bottomed tunnels, the horizontal support plates can provide a large area of ​​surface contact, enhance friction, and prevent lateral displacement. In soft-bottomed tunnels, the convex structure in the middle of the inverted V-shaped support can distribute the force to the support plates on both sides, reduce the pressure per unit area, and effectively prevent the sliding shoe from sinking.

[0032] 3. In this invention, the deflection mechanism of the lifting slipper assembly drives the connecting strip to deflect through a motor and gear set, which can adjust the contact position of the slipper part according to the condition of the bottom of the tunnel, ensuring that the support plate and the bottom plate always maintain stable contact.

[0033] 4. In this invention, the roof support assembly drives the roof plate to abut against the top of the roadway through the roof support jack, and the movable roof bar inside the roof plate can be tightened twice by the second telescopic rod. After the train set is positioned, the roof support jack first achieves initial support, and then pushes the movable roof bar upward by the push bar to eliminate the gap between the support structure and the roof plate, forming double support to limit the train set from accidental displacement or runaway.

[0034] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0035] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0036] Figure 1 This is a front view schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a side view structural schematic diagram of the driven train set of the present invention;

[0038] Figure 3 This is a front view structural schematic diagram of the anchoring power vehicle of the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of the lifting slipper assembly of the present invention;

[0040] Figure 5This is a side view of the lifting slipper assembly of the present invention;

[0041] Figure 6 This is a schematic diagram of the structure of the connecting strip, deflection mechanism, sliding shoe, and adjustment mechanism of the present invention;

[0042] Figure 7 This is a schematic diagram of the structure of the slipper component and the adjustment mechanism of the present invention;

[0043] Figure 8 This is a schematic diagram of the adjustment mechanism of the present invention;

[0044] Figure 9 This is a structural schematic diagram of the first rack portion and the second rack portion of the present invention in a split state;

[0045] Figure 10 This is a schematic diagram of the structure of the girder assembly of the present invention;

[0046] Figure 11 This is a schematic diagram of the top plate of the present invention;

[0047] Figure 12 This is a schematic diagram of the structure of the movable top bar, the second telescopic rod, and the push bar of the present invention.

[0048] The correspondence between the labels and component names in the attached figures is as follows:

[0049] 1. Anchored power vehicle; 101. Diagonal bracing beam; 2. Column; 3. Pushing jack; 4. Driven train set; 5. Lifting assembly; 51. Lifting jack; 52. Upper support; 6. Guide structure;

[0050] 7. Lifting shoe assembly; 71. Lifting jack; 72. Cross seat; 73. Connecting bar; 74. Deflection mechanism; 741. Motor; 742. Drive gear; 743. First gear; 744. Second gear; 75. Slipper component; 751. First support plate; 752. Second support plate; 753. Third support plate; 76. Adjustment mechanism; 761. First telescopic rod; 762. Concave bar; 763. Guide bar; 764. Third gear; 765. Fourth gear; 766. First rack section; 767. Second rack section; 768. Connecting rod; 769. First spring;

[0051] 8. Safety chain; 9. Ladder; 10. Track; 11. Maintenance platform;

[0052] 12. Roofing assembly; 121. Roofing jack; 122. Top plate; 123. Movable top bar; 124. Second telescopic rod; 125. Push bar; 126. Pushing ramp; 127. Second spring;

[0053] 13. Guide rod fixing pin. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention. Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the invention more thorough and complete, and to fully convey the scope of the invention to those skilled in the art.

[0055] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0056] Example 1:

[0057] See Figures 1-9As shown, this invention proposes a mine hydraulic mobile train unit operating across a conveyor belt, comprising an anchoring power car 1 and a driven train unit 4. The anchoring power car 1 has dimensions (length × width × height) of 4500 × 2020 × 1800 mm, and the driven train unit 4 comprises 5 driven cars with dimensions (length × width × height) of 5500 × 2020 × 1800 mm. The anchoring power car 1 and the driven train unit 4 are connected by a pushing jack 3. The pushing jack 3 mainly consists of a cylinder, piston rod, guide sleeve, piston, and seals. The pushing jack 3 has a cylinder diameter of 140 mm, a rod diameter of 85 mm, and a stroke of 1000 mm, providing sufficient pushing and pulling force and stroke to meet the needs of the train unit's step-like forward movement. It is arranged on the conveyor belt in the roadway. The two sides or the area spanning the conveyor belt meet the load-bearing requirements of conveyor belt transport equipment, cables, tools, etc. Both the anchoring power car 1 and the driven train set 4 are equipped with liftable rails 10. The rails 10 are welded together from heavy rails and rail pads, and are connected to each other via connecting plates and hexagonal head hinge bolts. They are connected to individual train cars via lifting pins. Specifically, the rails 10 of every two train cars are hinged together via connecting plates. The hinged device allows the train cars to move uphill, downhill, and adjust their alignment. Each car frame has built-in rollers to reduce friction and prevent derailment. The anchoring power car 1 and the driven train set 4 are also equipped with ladders 9 and maintenance platforms 11, and protective chains 8 are installed around the perimeter of the flatbed frame. The anchoring power car 1 is equipped with an inclined... The support beam 101 and the column 2 are connected. The diagonal support beam 101 is hinged to the column 2 via a pin. The column 2 mainly consists of a cylinder, piston, guide sleeve, and seals. The cylinder diameter is 140mm, the rod diameter is 100mm, and the stroke is 950mm. The column 2 and the diagonal support beam 101 cooperate to form a top-to-bottom anchoring support for the anchoring power vehicle 1. In addition, it also includes a lifting assembly 5 and a bottom-lifting slipper assembly 7. The lifting assembly 5 is used to lift the flatbed frame and is also equipped with a guide structure 6. The guide structure 6 consists of a guide rod and a guide column. The guide rod can move along the guide column. The guide rod is also connected to a guide rod fixing pin 13. The anchoring power vehicle 1 and the driven train group 4 are each equipped with at least two sets of bottom-lifting slipper assemblies 7, and the bottom-lifting slipper assembly 7 includes a bottom-lifting... The train consists of a jack 71, a sliding shoe 75, and an adjustment mechanism 76. When the lifting jack 71 drives the sliding shoe 75 to touch the ground for support, the track 10 achieves a lift-off action through its matching telescopic drive component, which can be a jack. The sliding shoe 75 is composed of three sliding shoe parts connected in series. The adjustment mechanism 76 can drive the three sliding shoe parts to switch synchronously to a horizontal support state, or make the three sliding shoe parts form an inverted V-shaped support part with a convex center. The train set adopts an existing advanced hydraulic support electro-hydraulic control system, which has two operation modes: remote control and manual operation of the train body. It can achieve precise control of multiple functions such as column 2 extension / retraction, lifting jack 71 action, pushing jack 3 extension / retraction, and car body lifting. The rated working pressure of the hydraulic system is 31.The system operates at 5 MPa, with a working medium of 3%–5% emulsion (meeting the MT / T76-2011 standard for emulsified oil, concentrated oil and high water content hydraulic fluid for coal mine machinery and equipment). It is equipped with hydraulic components such as a multi-way directional valve (model FHD400(4) / 200(8)X), a safety valve (model FATA-40MPa / DN19), a two-way lock (model FDS125 / 50-DN10 / 13 to prevent jack malfunction), and a shut-off valve (model FJQS-DN19 / 25 for oil circuit on / off control) to ensure safe and reliable system operation.

[0058] Among them, see Figure 1 and Figure 3 As shown, the lifting assembly 5 includes a lifting jack 51 with a cylinder diameter of 100mm, a column diameter of 70mm, and a stroke of 610mm. The lifting jack 51 used by the anchoring power car 1 has a different oil port type than the lifting jack 51 used by the driven train set 4. The top of the lifting jack 51 is equipped with an upper support 52, and the upper end of the upper support 52 is fixed to the flatbed car frame. The lifting assembly 5 can raise the coal passage space of the train set to 1.2m.

[0059] See Figures 4-5 As shown, the lifting slipper assembly 7 also includes a horizontal seat 72. The horizontal seat 72 has a through groove along its width direction. A connecting strip 73 passes through the through groove. Slipper pieces 75 are installed at the bottom of the connecting strip 73. The connecting strip 73 has an inverted "U" shaped structure. Each connecting strip 73 connects two slipper pieces 75.

[0060] See Figures 4-8 As shown, the slipper component 75 includes a first support plate 751, a second support plate 752, and a third support plate 753 that are hinged together in sequence. The first support plate 751, the second support plate 752, and the third support plate 753 are all made of high-strength materials. Among them, the first support plate 751 has the largest size. The first support plate 751 is fixed to the bottom end of the connecting strip 73. In the horizontal state, the lower end surfaces of the first support plate 751, the second support plate 752, and the third support plate 753 are flush.

[0061] See Figures 4-9As shown, the adjustment mechanism 76 includes a first telescopic rod 761 and a guide bar 763. The first telescopic rod 761 is horizontally embedded in a mounting cavity inside the first support plate 751, and a concave bar 762 extending to the outside of the first support plate 751 is fixed to the output end of the first telescopic rod 761. One end of the guide bar 763 is fixed to the end of the concave bar 762, and the guide bar 763 has a first rack portion 766 and a second rack portion 767. The first rack portion 766 is vertically connected to the second rack portion 767. A third gear 764 is fixed to the end of the hinge shaft between the first support plate 751 and the second support plate 752. The upper end face of the first rack portion 766 is toothed, and the first rack portion 766 meshes with the third gear 764 from the lower end. A fourth gear 765 is fixed to the end of the hinge shaft between the third support plates 753. The lower end face of the second rack portion 767 is toothed. The second rack portion 767 meshes with the fourth gear 765 from the upper end. When the first telescopic rod 761 is activated to retract, the concave strip 762 can be moved to push the guide strip 763 to move. Then, the first rack portion 766 drives the third gear 764 to rotate, and the second rack portion 767 drives the fourth gear 765 to rotate. Since the rotation directions of the third gear 764 and the fourth gear 765 are different, the end of the second support plate 752 facing the third support plate 753 deflects upward, while the end of the third support plate 753 away from the second support plate 752 deflects downward, so that the second support plate 752 and the third support plate 753 present an inverted V-shape. In soft ground conditions, the main problem with soft ground tunnels is their weak bearing capacity (such as the low compressive strength of materials like soil and loose sandstone). If the support plate remains horizontal (in the hard-bottom tunnel mode), the contact between the support plate and the ground is a surface contact, but the force is concentrated on the entire plane of the support plate. The pressure per unit area is relatively large, which can easily cause the support plate to sink into the bottom plate. This not only results in the loss of support effect but may also increase the difficulty of equipment adjustment due to the sinking.

[0062] In the inverted V-shape, the second support plate 752 and the third support plate 753 are inclined at an angle, and the contact between the support plate and the soft ground changes from full surface contact to partial contact between the two support plates: the edge of the inverted V-shape can be slightly embedded in the soft ground surface, which utilizes the local bearing capacity of the soft ground surface and prevents the support plate from sinking in as a whole, ensuring that the support plate is always at an effective support height.

[0063] Secondly, the contact points of the inclined support plates on both sides form two force fulcrums. The two fulcrums provide reaction forces diagonally downwards. When the equipment tends to shift to the left or right, the support plate on the corresponding side will generate greater compressive force, thereby generating stronger lateral friction.

[0064] In this design, a groove is provided at one end of the first rack portion 766 near the second rack portion 767. A first spring 769 is connected in the groove. A connecting rod 768 is connected between the top of the first spring 769 and the end of the second rack portion 767. The connecting rod 768 is located in the groove and can move along the groove. To prevent the connecting rod 768 from disengaging from the groove, the lower diameter of the connecting rod 768 can be set to be large, while the upper inner diameter of the groove can be made small, so that the bottom end of the connecting rod 768 cannot disengage from the groove. The height adjustment of the second rack portion 767 is used to adapt to the upward deflection of the fourth gear 765, so that the second rack portion 767 and the fourth gear 765 are always in a meshing state.

[0065] In addition, to ensure the stability of the movement of the first rack portion 766 and the second rack portion 767, a guide member can be provided to guide the movement of the first rack portion 766 and the second rack portion 767. Specifically, one end of the guide member can be connected to the first support plate 751, and the other end can be sleeved on the outside of the first rack portion 766 and the second rack portion 767 through a collar to achieve guidance. Furthermore, the guide portion of the second rack portion 767 can be raised and lowered to meet the raising and lowering needs of the second rack portion 767.

[0066] The above can be explained in the following ways during specific use:

[0067] 1. When facing a hard-bottomed roadway: the first telescopic rod 761 extends outward, so that the first support plate 751, the second support plate 752 and the third support plate 753 are in a horizontal state and in contact with the ground to provide friction;

[0068] 2. When facing soft ground tunnels, the first telescopic rod 761 is retracted, so that the second support plate 752 and the third support plate 753 are in an inverted V shape to increase stability.

[0069] See Figures 4-6 As shown, the lifting shoe assembly 7 also includes a deflection mechanism 74. Two connecting bars 73 are provided. The deflection mechanism 74 includes a motor 741 mounted on the upper end face of the cross seat 72. A drive gear 742 and a second gear 744 are respectively mounted on the two connecting bars 73 through connecting shafts. A first gear 743 meshes between the drive gear 742 and the second gear 744. The output end of the motor 741 is connected to the connecting shaft of the drive gear 742. When the motor 741 is started, the output end of the motor 741 can drive the drive gear 742 to rotate, which in turn drives the second gear 744 to rotate in the same direction through the first gear 743. This allows the connecting bars 73 to be adjusted according to the angle requirements to change the contact point of the shoe component 75.

[0070] Furthermore, during train movement: the lifting jack 71 of the anchoring power car 1 retracts, causing the sliding shoe 75 to lift off the ground, while the track 10 of the anchoring power car 1 lands. The lifting jack 71 of the driven train 4 extends, and the sliding shoe 75 of the driven train 4 contacts the ground. Subsequently, the pushing jack 3 extends, the frame of the anchoring power car 1 moves forward, and the track 10 of the driven train 4 moves forward. Then, the lifting jack 71 of the anchoring power car 1 extends outward, and the sliding shoe 75... When 75 touches the ground, the track 10 of the anchoring power car 1 is lifted off the ground, the lifting jack 71 of the driven train group 4 retracts, the track 10 of the driven train group 4 lands, the column 2 extends, and together with the diagonal brace beam 101, it forms a top-to-bottom anchoring support. Then the pushing jack 3 is retracted, the driven train group 4 moves forward, and at the same time the track 10 of the anchoring power car 1 moves forward. Then the column 2 is retracted, and the train group moves forward one step. This operation is repeated to make the train group move forward continuously.

[0071] The entire mobile train unit moves forward in a stepping motion through the interaction of the anchoring power car 1 and the pushing jack 3. Using this train unit can reduce manual labor input and the labor intensity of workers, and effectively improve safety management level and work efficiency.

[0072] When the train car body is raised or lowered: When the roadway is high, the coal passage space needs to be raised to 1.2m. At this time, the car body needs to be raised. The lifting jack 51 extends and the car body is raised. When it is raised to the required height, the guide rod fixing pin 13 is inserted into the guide device hole to fix the car body height. When it is necessary to lower the car body, the lifting jack 51 is retracted and the car body is lowered. When it is lowered to the required height, the guide rod fixing pin 13 is inserted into the guide device hole to fix the car body height.

[0073] Example 2:

[0074] See Figure 1 as well as Figures 10-12 As shown, the mine hydraulic mobile train set operating across the belt conveyor also includes a top support assembly 12. The top support assembly 12 is installed on the flatbed car frame, specifically fixed on the side or top of the flatbed car frame. When the train set stops running and completes positioning, the top support assembly 12 extends vertically and closely abuts against the top support structure or side support structure of the roadway to limit the train set from accidental displacement or runaway.

[0075] Among them, see Figure 10 As shown, the jacking assembly 12 includes a jacking jack 121 and a top plate 122, which are installed on the flatbed car frame. The top plate 122 is fixed to the top of the jacking jack 121. When the equipment train stops running and completes positioning, the jacking jack 121 is activated, which drives the top plate 122 to move upward. The top plate 122 is used to press against the top of the roadway to improve stability and prevent accidental displacement or runaway.

[0076] See Figures 10-12 As shown, since the top of the tunnel is not perfectly flat, when the traditional single roof slab 122 structure is pressed down, small depressions and protrusions at the top can easily cause gaps between the roof slab 122 and the support structure. Therefore, a receiving groove is provided inside the roof slab 122, and a movable roof bar 123 and a second telescopic rod 124 are provided within the receiving groove. The second telescopic rod 124 can be a hydraulic rod. The receiving groove is open where the movable roof bar 123 is placed, and the upper end of the movable roof bar 123 can pass through the open opening. A pushing slope 126 is provided at the middle of the lower end of the movable roof bar 123, and a second spring 127 connects the lower end face of the movable roof bar 123 and the bottom of the receiving groove. The second telescopic rod 124... The output end is equipped with a push bar 125. The top of the push bar 125 is provided with a pressing slope that matches the pushing slope 126. After the top plate 122 presses against the top of the roadway, the second telescopic rod 124 can be activated to drive the push bar 125 to move, so as to press the movable top bar 123 with the pushing slope 126 to move upward, so as to further tighten it with the movable top bar 123. Compared with the initial pressing of the top plate 122 itself, the secondary pressing can increase the contact pressure, reduce the gap between the top plate 122 and the top of the roadway, and improve the stability of the support. The second spring 127 is provided to facilitate the reset of the movable top bar 123 after it moves upward.

[0077] A self-moving method, employing the aforementioned mine hydraulic mobile train unit operating across a belt conveyor, includes the following steps:

[0078] S1. Start the bottom lifting slipper assembly 7, so that the bottom lifting jack 71 of the anchoring power car 1 drives the slipper part 75 to retract, and the track 10 is grounded through the matching telescopic drive part. At the same time, the bottom lifting jack 71 of the driven train group 4 moves, so that the slipper part 75 touches the ground and the track 10 is lifted off the ground.

[0079] S2. Control the extension of the push jack 3 to move the frame of the anchoring power car 1 and the track 10 of the driven train group 4 forward. Then adjust the bottom lifting slipper assembly 7 so that the slipper 75 of the anchoring power car 1 touches the ground and the track 10 leaves the ground, and the slipper 75 of the driven train group 4 leaves the ground and the track 10 touches the ground.

[0080] S3, column 2 extends out and, together with the diagonal bracing beam 101, forms a top-to-bottom anchor support;

[0081] S4. Push jack 3 retracts, driven train 4 moves forward, and anchor power car 1 moves forward at the same time;

[0082] S5. Retract column 2, and the train group moves forward one step. Repeat S1-S4 to achieve continuous self-movement.

[0083] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphasis; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the embodiments of the present invention can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the embodiments of the present invention can be combined, divided, and deleted according to actual needs.

[0084] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A mine hydraulic mobile train unit that runs across a belt conveyor, characterized in that, The system includes an anchoring power vehicle (1) and a driven train group (4). The anchoring power vehicle (1) is equipped with a diagonal bracing beam (101) and a column (2). The anchoring power vehicle (1) and the driven train group (4) are connected by a pushing jack (3). Both the anchoring power vehicle (1) and the driven train group (4) are equipped with a liftable rail (10). The system also includes: Lifting assembly (5) is used to lift the flatbed truck frame; The bottom-lifting slipper assembly (7) is provided with at least two sets of bottom-lifting slipper assemblies (7) for both the anchoring power vehicle (1) and the driven train group (4). The bottom-lifting slipper assembly (7) includes a bottom-lifting jack (71), a slipper component (75), and an adjustment mechanism (76). When the bottom-lifting jack (71) drives the slipper component (75) to touch the ground for support, the track (10) achieves the action of leaving the ground through its matching telescopic drive component. The slipper component (75) is composed of three slipper parts that are hinged in sequence in series. The adjustment mechanism (76) can drive the three slipper parts to switch to the horizontal support state synchronously, or make the three slipper parts form an inverted V-shaped support part with a convex center. The jacking assembly (12) is installed on the flatbed car frame. When the equipment train stops running and completes positioning, the jacking assembly (12) extends vertically and abuts against the top or side support structure of the roadway to prevent the train from running away unexpectedly.

2. The mine hydraulic mobile train set operating across belt conveyors according to claim 1, characterized in that, The lifting slipper assembly (7) also includes a cross seat (72), through which a connecting strip (73) passes, and the slipper piece (75) is installed at the bottom end of the connecting strip (73).

3. The mine hydraulic mobile train set operating across belt conveyors according to claim 2, characterized in that, The slipper component (75) includes a first support plate (751), a second support plate (752) and a third support plate (753) that are hinged together in sequence, with the first support plate (751) fixed to the bottom end of the connecting strip (73).

4. The mine hydraulic mobile train set operating across belt conveyors according to claim 3, characterized in that, The adjustment mechanism (76) includes: The first telescopic rod (761) is horizontally embedded in the mounting cavity opened inside the first support plate (751), and the output end of the first telescopic rod (761) is fixed with a concave strip (762) extending to the outside of the first support plate (751). The guide bar (763) has one end fixed to the end of the concave bar (762), and the guide bar (763) has a first rack portion (766) and a second rack portion (767), wherein the first rack portion (766) is vertically connected to the second rack portion (767). The third gear (764) is fixed at the end of the hinge shaft between the first support plate (751) and the second support plate (752), and the first rack portion (766) meshes with the third gear (764) from the lower end. The fourth gear (765) is fixed at the end of the hinge shaft between the second support plate (752) and the third support plate (753), and the second rack portion (767) meshes with the fourth gear (765) from the top.

5. The mine hydraulic mobile train set operating across belt conveyors according to claim 4, characterized in that, The first rack portion (766) has a groove at one end near the second rack portion (767), and a first spring (769) is connected in the groove. A connecting rod (768) is connected between the top of the first spring (769) and the end of the second rack portion (767), and the connecting rod (768) is located in the groove.

6. The mine hydraulic mobile train set operating across belt conveyors according to claim 2, characterized in that, The lifting shoe assembly (7) also includes a deflection mechanism (74). There are two connecting bars (73). The deflection mechanism (74) includes a motor (741) mounted on the upper end face of the cross seat (72). The two connecting bars (73) are respectively equipped with a drive gear (742) and a second gear (744) via a connecting shaft. A first gear (743) meshes between the drive gear (742) and the second gear (744). The output end of the motor (741) is connected to the connecting shaft of the drive gear (742).

7. The mine hydraulic mobile train set operating across belt conveyors according to claim 1, characterized in that, The lifting assembly (5) includes a lifting jack (51), and an upper support (52) is installed on the top of the lifting jack (51). The upper end of the upper support (52) is fixed to the flatbed frame.

8. The mine hydraulic mobile train set operating across belt conveyors according to claim 1, characterized in that, The jacking assembly (12) includes: A jack (121) is installed on the flatbed frame; The top plate (122) is fixed to the top of the jack (121).

9. The mine hydraulic mobile train set operating across belt conveyors according to claim 8, characterized in that, The top plate (122) is provided with a receiving groove, and the receiving groove is provided with a movable top bar (123) and a second telescopic rod (124). The lower end of the movable top bar (123) is provided with a pushing slope (126), and a second spring (127) is connected between the lower end face of the movable top bar (123) and the bottom of the receiving groove. The output end of the second telescopic rod (124) is equipped with a push bar (125), and the top end of the push bar (125) is provided with a squeezing slope that is adapted to the pushing slope (126).

10. A self-moving method, employing a mine hydraulic mobile train unit operating across a belt conveyor as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Start the bottom lifting slipper assembly (7), so that the bottom lifting jack (71) of the anchoring power car (1) drives the slipper (75) to retract, and the track (10) is grounded through the matching telescopic drive component. At the same time, the bottom lifting jack (71) of the driven train group (4) moves, so that the slipper (75) touches the ground and the track (10) leaves the ground. S2. Control the extension of the push jack (3) to move the frame of the anchoring power car (1) and the track (10) of the driven train group (4) forward. Then adjust the lifting slipper assembly (7) so that the slipper part (75) of the anchoring power car (1) touches the ground and the track (10) leaves the ground, and the slipper part (75) of the driven train group (4) leaves the ground and the track (10) touches the ground. S3, the column (2) extends out and, together with the diagonal bracing beam (101), forms a top-to-bottom anchor support; S4. Push the jack (3) back, the driven train group (4) moves forward, and at the same time the anchored power car (1) moves forward; S5, retract the column (2), the train group moves forward one step, and repeat S1-S4 to achieve continuous self-movement.

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