High-stability impact-resistant mine car cab and machining method

Abstract

The invention discloses a high-stability impact-resistant mine car cab and a machining method, and belongs to the technical field of cabs, the high-stability impact-resistant mine car cab comprises a cab body, a side door plate and a front window are arranged on the cab body, and fixing sleeves are symmetrically arranged at the front ends of the two sides of the cab body. The front ends of the two sides of the cab body are rotationally provided with the supporting rods and the handrail rods fixed to the supporting rods, when a driver enters the cab body, the handrail rods can serve as handrails when the driver climbs and enters the cab body, and when the driver encounters front impact to cause complete deformation of the energy absorption box, the energy absorption box can be rotated by means of the rotating mechanism in the transmission bin; the supporting rod can be automatically driven to rotate, so that the handrail rod is tightly attached to the outer side of the side door plate and matched with the fixing block to form forward limiting, the side door plate is effectively prevented from being extruded outwards, deformed or disengaged due to impact, the position of a vehicle door is firmly locked, the integrity of a front supporting structure of the cab body is guaranteed, and the overall impact strength of the cab body is remarkably improved. Sufficient living space is reserved for a cab, and the driving safety is greatly enhanced.

Description

Technical Field

[0001] This invention relates to a mining car cab, and more particularly to a highly stable and impact-resistant mining car cab. It also relates to a method for manufacturing the cab, and more particularly to a method for manufacturing a highly stable and impact-resistant mining car cab, belonging to the field of cab technology. Background Technology

[0002] Currently, the doors of mining truck cabs are generally connected to the cab body using traditional hinges. In the event of a head-on collision, there is a lack of effective outward limiting of the door. The inertial impact force generated by the collision will directly act on the door lock, easily causing the lock to be forced open. This results in the door being squeezed outward along the hinge connection direction, severely deformed, or even completely detached from the cab body. This problem not only causes the door to completely lose its original protective function, but also damages the integrity of the overall support structure at the front of the cab, significantly weakening the cab's impact resistance and thus directly compressing the survival space in the cab, posing a serious threat to the driver's life safety.

[0003] In addition, under frontal impact conditions, there is a lack of targeted protective measures at the windshield. External impact objects can easily penetrate the windshield and enter the cab, further exacerbating the safety threat to the driver and seriously affecting the overall safety protection performance of the cab.

[0004] To address these issues, a highly stable and impact-resistant mining car cab and its manufacturing method were designed to optimize the aforementioned problems. Summary of the Invention

[0005] The main objective of this invention is to provide a highly stable and impact-resistant mining car cab and its processing method. By rotating support rods and handrails fixed to the front sides of the cab body, the handrails serve as handholds for the driver when climbing into the cab. When a frontal impact causes complete deformation of the energy-absorbing box, a rotating mechanism consisting of a shaft, first bevel gear, second bevel gear, crossbar, strip groove, spring, and lever within the transmission compartment automatically drives the support rods to rotate. This ensures the handrails fit tightly against the outer side of the side door panel, and a fixing block forms a positive limiting position, effectively preventing the side door panel from being squeezed outwards, deformed, or detached due to impact. This firmly locks the door position, ensuring the integrity of the front support structure of the cab body, significantly improving the overall impact resistance of the cab body, providing ample survival space for the driver, and greatly enhancing driving safety. Furthermore, the support rods are equipped with a sleeve, positioning groove, vertical groove, sliding groove, positioning bead, vertical rod, reset groove, cover plate, and spring at their top. The locking mechanism, consisting of a spring, a pull rod, and a pull ring, allows the driver to quickly release the positioning bead's restriction on the handrail after a frontal collision by operating the pull ring and pull rod to drive the vertical rod. This facilitates easy opening of the side door, enabling the driver to escape and improving the flexibility and efficiency of emergency escape. A mobile protective mechanism, consisting of a guide rail, guard rod, connecting rod, connecting plate, rollers, wire rope, and limiting components, is installed between the top and front of the cab. Initially, the guard rod rests on the top of the cab, effectively blocking falling rock impacts common in mining operations and protecting the top structure of the cab. When a strong frontal impact occurs, the wire rope is fixedly connected to the outer side of the shaft, and the impact transmission linkage controls the guard rod to move down along the guide rail, precisely covering the front window area to form a robust frontal protective barrier. This effectively prevents impacting objects from penetrating the glass and entering the cab, avoiding secondary injuries to the driver and comprehensively improving the safety performance of the cab in complex mining conditions.

[0006] The objective of this invention can be achieved by adopting the following technical solution:

[0007] A highly stable and impact-resistant mining car cab includes a cab body, on which side door panels and a front window are provided;

[0008] The cab body has symmetrical fixed sleeves on both front sides. The fixed sleeves are rotatably connected to the support rods, and the support rods are fixedly installed on the support rods. The handrails are initially perpendicular to the side of the cab body. The front window has a fixed block corresponding to the rotation position of the handrails.

[0009] Energy-absorbing boxes are evenly distributed along the width direction at the front of the cab body. An anti-collision beam is fixed to the end of the energy-absorbing box away from the cab body. A transmission compartment is provided at the bottom of the cab body near the energy-absorbing box. A rotating mechanism is provided in the transmission compartment. The rotating mechanism is connected to the support rod. The rotating mechanism is used to rotate the handrail on the support rod to fit against the front window. The rotating mechanism is also linked with the anti-collision beam.

[0010] The top of the support rod is equipped with a locking mechanism, which is used to fix or unlock the position of the handrail;

[0011] A movable protective mechanism is provided between the top and front of the cab body. The movable protective mechanism works in conjunction with the rotating mechanism. In the initial state, the movable protective mechanism is located on the top of the cab. In the event of a frontal impact, the movable protective mechanism can move to the front window to provide protection.

[0012] Preferably, the rotating mechanism includes a shaft, a first bevel gear, a side cover, a second bevel gear, a crossbar, a strip groove, a second spring, and a lever;

[0013] The shaft is rotatably installed inside the transmission compartment along the width direction of the cab body. Both ends of the transmission compartment are provided with side covers. Both ends of the shaft are equipped with first bevel gears. The bottom end of the support rod extends into the inside of the side cover. The bottom end of the support rod is fixed with a second bevel gear that meshes with the first bevel gear.

[0014] A crossbar is vertically fixed to the inner side of the anti-collision beam, and the crossbar slides horizontally to the inside of the transmission compartment. A strip groove is opened at the end of the crossbar away from the anti-collision beam. A lever is fixed at the middle position of the shaft. The bottom end of the lever is inserted into the inside of the strip groove at an angle. A spring is provided between the lever and the inner side of the transmission compartment to limit the stability of the initial position of the lever.

[0015] Preferred locking mechanism includes a sleeve, positioning groove, vertical groove, sliding groove, positioning bead, vertical rod, reset groove, cover plate, spring 1, pull rod and pull ring;

[0016] The sleeve is fixedly fitted to the upper and lower ends of the support rod. The two ends of the handrail are fixedly connected to the sleeve. The inner wall of the sleeve is evenly provided with positioning grooves along the circumference. The inside of the support rod is provided with vertical grooves. The side of the support rod is provided with sliding grooves at the positions corresponding to the positioning grooves. The sliding grooves penetrate the side wall of the support rod. Positioning beads are slidably installed inside the sliding grooves.

[0017] A vertical rod is vertically installed inside the vertical groove. Both the upper and lower ends of the vertical rod are provided with reset grooves. The reset grooves are annular and are misaligned with the positioning beads in the initial state.

[0018] The top of the support rod is equipped with a cover plate, and a spring is provided between the bottom of the cover plate and the vertical rod. A pull rod is vertically fixed at the top of the vertical rod, and the pull rod passes through the inside of the spring and slides to the top of the cover plate. A pull ring is fixed at the top of the pull rod.

[0019] Preferred: The mobile protective mechanism includes a guide rail, a protective rod, a connecting rod, a connecting plate, rollers, a wire rope, and a limiting component;

[0020] The guide rails are symmetrically arranged on the top of the cab body and both sides of the front end. Protective bars are evenly arranged between the two sets of guide rails. Connecting bars are fixed at both ends of the protective bars. Connecting plates are rotatably installed between adjacent connecting bars at the same end of multiple sets of protective bars. Rollers are rotatably installed at the end of the connecting bars away from the protective bars, and the rollers are in rolling cooperation with the guide rails.

[0021] A steel wire rope is installed on the outermost connecting plate at the top of the cab near the front window, and the bottom end of the steel wire rope is connected to the shaft of the rotating mechanism.

[0022] A limiting component is provided at the top of the cab body away from the front window to limit the position of the guard bar in the initial state.

[0023] Preferred: The limiting assembly includes a fixing plate, a plug interface, a limiting groove, a limiting plate, a pressure cap, and a spring.

[0024] The fixing plate is fixedly installed on the top of the cab body at the end away from the front window. The side of the fixing plate has an insertion interface that mates with the guard bar. The top of the fixing plate has a limit groove along the length direction, and the limit groove is connected to the insertion interface.

[0025] A limit plate is vertically slidably installed inside the limit groove. The bottom of both sides of the limit plate is beveled. The pressure cover is fixedly installed on the top of the fixed plate. Springs three are evenly arranged between the bottom of the pressure cover and the limit plate, and the springs three are always in a compressed state.

[0026] Preferably, both ends of the shaft are fixed with sheaves, the outer diameter of the sheaves is larger than the diameter of the shaft, and the wire rope is fixed to the surface of the sheaves.

[0027] Preferred design: The energy-absorbing box is made of honeycomb aluminum alloy, and the anti-collision beam is made of high-strength alloy steel.

[0028] Preferred: The wire rope is made of galvanized high-strength wire rope, and a sliding hole that mates with the wire rope is vertically opened at the front end of the top of the cab body. A sealing ring is provided on the inner side of the sliding hole, and an arc-shaped guide edge is provided at the top of the sliding hole.

[0029] Preferably, the positioning groove is an arc-shaped groove, the inner diameter of the sliding groove near the positioning groove end is smaller than the diameter of the positioning bead, and the sliding groove near the vertical rod end is in clearance fit with the positioning bead.

[0030] The present invention also provides a method for processing a highly stable and impact-resistant mining car cab, comprising the following steps:

[0031] Step 1: Process the cab body, side door panels and front window. The cab body frame is welded and formed using high-strength alloy steel, and the side door panels and front window made of tempered glass are assembled.

[0032] Step 2: Fabricate the energy-absorbing box and the anti-collision beam. Process the honeycomb aluminum alloy into the energy-absorbing box and the high-strength alloy steel into the anti-collision beam, and fix the two to the front of the main body of the cab.

[0033] Step 3: Assemble the rotating mechanism. Install the shaft, first bevel gear, crossbar and other components in the transmission chamber. Ensure that the first bevel gear is installed in place and rotates smoothly. Assemble the second spring and the lever in place. Slide the crossbar out of the transmission chamber and fix it to the anti-collision beam by welding.

[0034] Step 4: Install the support rod and handrail. Rotate the support rod into the fixed sleeve and fix the bottom end of the support rod to the second bevel gear. Fix the handrail to the support rod through the locking mechanism.

[0035] Step 5: Install guide rails, guard bars, wire ropes, and limit components between the top and front of the cab, ensuring that the wire ropes are fixedly connected to the shafts, and complete the assembly of the mobile protection mechanism.

[0036] The beneficial effects of this invention are as follows:

[0037] This invention provides a highly stable and impact-resistant mining car cab and its processing method. By rotating support rods and handrails fixed to the support rods at the front ends of both sides of the cab body, the handrails can serve as handrails for the driver to climb into the cab body when entering. When a frontal impact causes the energy-absorbing box to deform completely, the rotation mechanism composed of a shaft, a first bevel gear, a second bevel gear, a crossbar, a slotted groove, a spring, and a lever in the transmission compartment can automatically drive the support rods to rotate, so that the handrails fit tightly against the outside of the side door panel. Combined with the fixing block, a positive limit is formed, which effectively prevents the side door panel from being squeezed outward, deformed, or detached by the impact, firmly locking the door position, ensuring the integrity of the front support structure of the cab body, significantly improving the overall impact resistance of the cab body, reserving sufficient survival space for the driver's cab, and greatly enhancing driving safety.

[0038] By setting a locking mechanism at the top of the support rod, consisting of a sleeve, positioning groove, vertical groove, sliding groove, positioning bead, vertical rod, reset groove, cover plate, spring, pull rod and pull ring, after a frontal collision, the driver can operate the pull ring and pull rod to drive the vertical rod to quickly release the positioning bead from the handrail and open the side door panel, which facilitates the driver's self-rescue and improves the flexibility and efficiency of emergency escape.

[0039] A mobile protective mechanism consisting of guide rails, guard bars, connecting rods, connecting plates, rollers, wire ropes, and limiting components is installed between the top and front of the cab body. In the initial state, the guard bars are stopped at the top of the cab body, which can effectively block the impact of falling rocks commonly seen in mining operations and protect the top structure of the cab body. When a large-scale impact occurs from the front, because the wire rope is fixedly connected to the outside of the shaft, the guard bars move down along the guide rails through the impact transmission linkage, accurately covering the front window area and forming a solid front protective barrier. This can effectively prevent the impacting object from penetrating the glass and entering the cab, avoiding secondary injuries to the driver and comprehensively improving the safety protection performance of the cab body under complex mining conditions. Attached Figure Description

[0040] Figure 1 This is an initial state diagram of a preferred embodiment of the high-stability, impact-resistant mining car cab and its processing method according to the present invention;

[0041] Figure 2 This is a frontal collision state diagram of a preferred embodiment of the high-stability, impact-resistant mining car cab and its processing method of the present invention;

[0042] Figure 3 This is a side sectional view of the initial state of a preferred embodiment of the high-stability, impact-resistant mining car cab and its processing method according to the present invention;

[0043] Figure 4 This is a cross-sectional view of the support rod in a preferred embodiment of the high-stability, impact-resistant mining car cab and its processing method of the present invention.

[0044] Figure 5 This is a diagram of a preferred embodiment of the locking mechanism in the high-stability, impact-resistant mining car cab and its processing method of the present invention;

[0045] Figure 6 This is a transmission state diagram of the rotating mechanism in a preferred embodiment of the high-stability, impact-resistant mining car cab and its processing method of the present invention.

[0046] Figure 7 This is a diagram of a preferred embodiment of the mobile protection mechanism in the present invention, which describes a highly stable and impact-resistant mining car cab and its processing method.

[0047] Figure 8 This is a structural diagram of the end of a protective rod in a preferred embodiment of a highly stable and impact-resistant mining car cab and its processing method according to the present invention;

[0048] Figure 9 This is a diagram of a limiting component in a preferred embodiment of a highly stable and impact-resistant mining car cab and its processing method according to the present invention.

[0049] In the diagram: 1. Main body of the cab; 101. Side door panel; 102. Front window;

[0050] 2. Fixing sleeve; 3. Support rod; 4. Handrail; 5. Fixing block;

[0051] 6. Locking mechanism; 601. Sleeve; 602. Positioning groove; 603. Vertical groove; 604. Slide groove; 605. Positioning bead; 606. Vertical rod; 607. Reset groove; 608. Cover plate; 609. Spring 1; 610. Pull rod; 611. Pull ring;

[0052] 7. Energy-absorbing box; 8. Anti-collision beam; 9. Transmission compartment;

[0053] 10. Rotating mechanism; 1001. Shaft; 1002. First bevel gear; 1003. Side cover; 1004. Second bevel gear; 1005. Crossbar; 1006. Strip groove; 1007. Spring 2; 1008. Lever;

[0054] 11. Mobile protective mechanism; 1101. Guide rail; 1102. Protective rod; 1103. Connecting rod; 1104. Connecting plate; 1105. Roller; 1106. Steel wire rope;

[0055] 1107. Limiting component; 11071. Fixing plate; 11072. Insertion interface; 11073. Limiting groove; 11074. Limiting plate; 11075. Pressure cap; 11076. Spring three. Detailed Implementation

[0056] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0057] like Figures 1-9 As shown, this embodiment provides a highly stable and impact-resistant mining car cab, including a cab body 1, on which a side door panel 101 and a front window 102 are provided;

[0058] The cab body 1 has symmetrical fixed sleeves 2 on both front ends. The fixed sleeves 2 are rotatably connected to the support rods 3. The support rods 3 are fixedly installed on the support rods 3. The handrails 4 are initially perpendicular to the side of the cab body 1. The front window 102 is provided with a fixed block 5 corresponding to the rotation position of the handrails 4.

[0059] Energy-absorbing boxes 7 are evenly distributed along the width direction at the front of the cab body 1. An anti-collision beam 8 is fixed at the end of the energy-absorbing box 7 away from the cab body 1. A transmission chamber 9 is provided at the bottom of the cab body 1 near the energy-absorbing box 7. A rotating mechanism 10 is provided in the transmission chamber 9. The rotating mechanism 10 is connected to the support rod 3. The rotating mechanism 10 is used to rotate the handrail 4 on the support rod 3 to fit against the front window 102. The rotating mechanism 10 is also linked with the anti-collision beam 8.

[0060] The top of the support rod 3 is equipped with a locking mechanism 6, which is used to fix or unlock the position of the handrail 4;

[0061] A movable protective mechanism 11 is provided between the top and front of the cab body 1. The movable protective mechanism 11 is linked with the rotating mechanism 10. In the initial state, the movable protective mechanism 11 is located on the top of the cab. In the event of a frontal impact, the movable protective mechanism 11 can move to the front window 102 to form protection.

[0062] Overall working principle: In the initial state, spring 1007 provides stable support for lever 1008, limiting the initial position of lever 1008 and thus ensuring that shaft 1001 remains stationary. Shaft 1001 drives support rod 3 to be fixed through bevel gear meshing, making handrail 4 perpendicular to the side of cab body 1, which can be used as a handrail for driver to climb and also maintain the initial stability of the overall structure; the moving protection mechanism 11 is stopped at the top of cab body 1 and locked in position by limiting component 1107 to achieve top rockfall protection; the locking mechanism 6 is in the locked state, stabilizing the initial position of handrail 4. When a mine car experiences a frontal impact, and the impact intensity is sufficient to completely compress and deform the energy-absorbing box 7, the anti-collision beam 8 will move towards the cab body 1, triggering the rotation mechanism 10. This, in turn, will cause the support rod 3 to rotate the handrail 4 to fit against the front window 102, forming a positive limit on the side door panel 101. Simultaneously, the rotation mechanism 10 will also move the movable protective mechanism 11 down along the guide rail 1101, covering the front window 102 to form frontal protection. After the collision, the driver can unlock the handrail 4 by operating the locking mechanism 6 to easily open the side door panel 101 for escape, thus fully realizing impact resistance protection and emergency escape functions.

[0063] In this embodiment, the rotating mechanism 10 includes a shaft 1001, a first bevel gear 1002, a side cover 1003, a second bevel gear 1004, a crossbar 1005, a strip groove 1006, a second spring 1007, and a lever 1008.

[0064] The shaft 1001 is rotatably installed inside the transmission compartment 9 along the width direction of the cab body 1. Both ends of the transmission compartment 9 are provided with side covers 1003. Both ends of the shaft 1001 are equipped with first bevel gears 1002. The bottom end of the support rod 3 extends into the interior of the side cover 1003. The bottom end of the support rod 3 is fixed with a second bevel gear 1004 that meshes with the first bevel gear 1002.

[0065] A crossbar 1005 is vertically fixed to the inner side of the anti-collision beam 8, and the crossbar 1005 extends horizontally to the inside of the transmission chamber 9. A strip groove 1006 is provided at the end of the crossbar 1005 away from the anti-collision beam 8. A lever 1008 is fixed at the middle position of the shaft 1001. The bottom end of the lever 1008 is inserted obliquely into the inside of the strip groove 1006. A spring 1007 is provided between the lever 1008 and the inner side of the transmission chamber 9 to limit the stability of the initial position of the lever 1008.

[0066] Local working principle: One end of spring 1007 is fixed to the inside of the transmission compartment 9, and the other end is fixed to the lever 1008. The elastic support force limits the initial position of the lever 1008, thereby keeping the shaft 1001, which is fixedly connected to the lever 1008, stationary. The first bevel gear 1002 at both ends of the shaft 1001 and the second bevel gear 1004 at the bottom of the support rod 3 are in a meshing and stationary state. The support rod 3 maintains a fixed posture around the fixed sleeve 2, and finally drives the handrail 4 to be stably perpendicular to the side of the cab body 1, ensuring the structural stability and functionality in the initial state.

[0067] When the mine car is impacted head-on, the anti-collision beam 8 moves along with the deformation of the energy-absorbing box 7. Before the energy-absorbing box 7 is completely crushed and deformed, although the anti-collision beam 8 drives the horizontal bar 1005, which is fixed vertically to it, to slide horizontally along the inner wall of the transmission chamber 9, the strip groove 1006 at the end of the horizontal bar 1005 also moves synchronously. However, the end of the strip groove 1006 away from the second spring 1007 does not contact the lever 1008 and does not trigger the movement of the lever 1008. Until the energy-absorbing box 7 is about to be completely deformed, the side wall of the strip groove 1006 generates a lateral thrust on the lever 1008, which overcomes the supporting force of the second spring 1007 and pushes the lever 1008 to rotate around the axis of the shaft 1001. This causes the shaft 1001 to rotate along its own axis in the transmission chamber 9. The maximum rotation angle of the lever 1008 is ninety degrees. When the maximum rotation angle is reached, the bottom end of the lever 1008 is pushed to the top of the horizontal bar 1005, and the rotation angle no longer changes.

[0068] When the shaft 1001 rotates, the first bevel gears 1002 at both ends rotate synchronously, driving the second bevel gear 1004 to rotate through gear meshing. The second bevel gear 1004 drives the support rod 3 to rotate around the fixed sleeve 2. The handrail 4 fixed on the support rod 3 rotates synchronously with the support rod 3. Finally, the handrail 4 rotates to a position that fits against the front window 102, forming a positive limit on the side door panel 101 in conjunction with the fixed block 5 on the front window 102. This effectively prevents the side door panel 101 from being squeezed outward, deformed, or detached due to impact, ensuring the integrity of the front support structure of the cab body 1.

[0069] In this embodiment, the locking mechanism 6 includes a sleeve 601, a positioning groove 602, a vertical groove 603, a sliding groove 604, a positioning bead 605, a vertical rod 606, a reset groove 607, a cover plate 608, a spring 609, a pull rod 610, and a pull ring 611.

[0070] The sleeve 601 is fixedly sleeved on the upper and lower ends of the support rod 3. The two ends of the handrail 4 are fixedly connected to the sleeve 601. The inner wall of the sleeve 601 is evenly provided with positioning grooves 602 along the circumference. The inside of the support rod 3 is provided with vertical grooves 603. The side of the support rod 3 is provided with sliding grooves 604 at the position corresponding to the positioning grooves 602. The sliding grooves 604 penetrate the side wall of the support rod 3. Positioning beads 605 are slidably arranged inside the sliding grooves 604.

[0071] A vertical rod 606 is vertically arranged inside the vertical groove 603. Both the upper and lower ends of the vertical rod 606 are provided with reset grooves 607. The reset grooves 607 are annular and are misaligned with the positioning bead 605 in the initial state.

[0072] The top of the support rod 3 is provided with a cover plate 608. A spring 609 is provided between the bottom of the cover plate 608 and the vertical rod 606. A pull rod 610 is vertically fixed at the top of the vertical rod 606. The pull rod 610 passes through the inside of the spring 609 and slides to the top of the cover plate 608. A pull ring 611 is fixed at the top of the pull rod 610.

[0073] Local working principle: In the initial state, the spring 609 at the bottom of the cover plate 608 is in a naturally extended state, generating a downward thrust on the vertical rod 606, keeping the vertical rod 606 in its initial lower position within the vertical groove 603. At this time, the side wall of the vertical rod 606 is tightly fitted with the positioning bead 605 in the slide groove 604. Under the squeezing action of the vertical rod 606, the positioning bead 605 moves towards the end of the slide groove 604 near the sleeve 601, partially embedding into the positioning groove 602 on the inner wall of the sleeve 601. Through the interlocking action of the positioning bead 605 and the positioning groove 602, the sleeve 601 and the support rod 3 are relatively fixed, thereby locking the position of the handrail 4 and ensuring its stability in the initial state or in the limited state after collision, thus cooperating with the initial stable state of the rotating mechanism 10.

[0074] When a frontal collision occurs and the energy-absorbing box 7 is completely deformed, if the driver needs to open the side door panel 101 to escape, he can pull the pull ring 611 upwards. The pull ring 611 drives the pull rod 610, which is fixedly connected to it, to move upwards. The pull rod 610 passes through the spring 609 and pulls the vertical rod 606 to slide upwards in the vertical groove 603. The spring 609 is compressed and stores energy.

[0075] When the vertical rod 606 slides upward until the reset grooves 607 at its upper and lower ends are aligned with the slide grooves 604, the positioning bead 605 loses the squeezing support of the side wall of the vertical rod 606, the position of the handrail 4 is unlocked, and the driver can push the side door panel 101 to open, thus achieving rapid escape.

[0076] After the escape is completed or when it is necessary to relock the handrail 4, release the pull ring 611, the spring 609 releases its stored force and returns to its natural extended state, pushing the vertical rod 606 to slide downwards and reset in the vertical groove 603. After the vertical rod 606 resets, the reset groove 607 and the positioning bead 605 are misaligned again, the side wall of the vertical rod 606 re-presses the positioning bead 605, pushing the positioning bead 605 back to the end of the slide groove 604 near the sleeve 601 and embedding it into the positioning groove 602. The locking mechanism 6 returns to the locked state, the position of the handrail 4 is fixed again, and it is synchronized with the reset state of the rotating mechanism 10.

[0077] In this embodiment, the mobile protective mechanism 11 includes a guide rail 1101, a protective rod 1102, a connecting rod 1103, a connecting plate 1104, a roller 1105, a wire rope 1106, and a limiting component 1107.

[0078] Guide rails 1101 are symmetrically arranged on the top and front sides of the cab body 1. Protective rods 1102 are evenly arranged between the two sets of guide rails 1101. Connecting rods 1103 are fixed at both ends of the protective rods 1102. Connecting plates 1104 are rotatably installed between adjacent connecting rods 1103 at the same end of multiple sets of protective rods 1102. Rollers 1105 are rotatably installed at the end of the connecting rods 1103 away from the protective rods 1102, and the rollers 1105 are in rolling cooperation with the guide rails 1101.

[0079] A steel wire rope 1106 is provided on the outermost connecting plate 1104 at the top of the cab body 1 near the front window 102. The bottom end of the steel wire rope 1106 is connected to the shaft 1001 of the rotating mechanism 10.

[0080] A limiting component 1107 is provided at the top of the cab body 1 away from the front window 102 to limit the position of the guard bar 1102 in the initial state.

[0081] Partial Working Principle: In the initial state, the protective rod 1102 rests on the top of the cab body 1 via connecting rods 1103 and rollers 1105 at both ends. Multiple sets of protective rods 1102 are interconnected through connecting plates 1104 to form an overall protective structure. The outermost protective rod 1102 is inserted into the insertion interface 11072 of the fixing plate 11071. The limiting plate 11074 in the limiting groove 11073 presses the protective rod 1102 downward under the continuous compression force of the spring 11076. The initial position of the protective rod 1102 is limited by the contact and limitation between the limiting plate 11074 and the protective rod 1102. At this time, the protective rod 1102 covers the top of the cab body 1, which can effectively block the impact of falling rocks commonly seen in mining operations and protect the top structure of the cab body 1 from damage. Meanwhile, the shaft 1001 remains stationary under the action of the second spring 1007, and the wire rope 1106 connected to the shaft 1001 is in a taut state, which does not affect the initial fixation of the guard rod 1102.

[0082] When the front of the mine car is impacted and the energy-absorbing box 7 is completely crushed and deformed, the shaft 1001 of the rotating mechanism 10 rotates under the drive of the lever 1008. The pulleys fixed at both ends of the shaft 1001 rotate synchronously. During the rotation of the pulleys, the steel wire rope 1106 is wound around, causing the steel wire rope 1106 to generate tension, which pulls the outermost connecting plate 1104 at the top of the cab body 1 near the front window 102.

[0083] Under the tension of the wire rope 1106, the connecting plate 1104 drives the connecting rod 1103, which is rotatably connected to it. The connecting rod 1103 slides downward along the guide rail 1101 via the roller 1105. Since multiple sets of protective rods 1102 are linked in sequence through the connecting plate 1104, when the front protective rod 1102 moves downward, it will pull the rear protective rod 1102 to move downward along the guide rail 1101 in sync through the connecting plate 1104. The protective rods 1102 gradually extend forward from the top of the cab body 1.

[0084] During this process, the outermost protective rod 1102 presses against the inclined edge of the limiting plate 11074, causing the limiting plate 11074 to compress the spring 11076 upwards, thus disengaging from the limiting of the protective rod 1102. The protective rod 1102 then smoothly moves downwards along the guide rail 1101 and is eventually evenly distributed on the outside of the front window 102, forming a solid front protective barrier that effectively prevents impacting objects from penetrating the reinforced glass of the front window 102 and intruding into the cockpit, thus avoiding secondary injury to the driver.

[0085] After the impact is released and the new energy-absorbing box 7 is replaced, the protective rod 1102 can be manually pushed to slide upward along the guide rail 1101. The protective rod 1102 is reset sequentially through the connecting plate 1104. The outermost protective rod 1102 is reinserted into the insertion interface 11072, pressing the limiting plate 11074 upward and compressing the spring 11076. When the protective rod 1102 is fully reset, the limiting plate 11074 is reset downward under the elastic force of the spring 11076, pressing the protective rod 1102 again, and the moving protective mechanism 11 returns to the initial top protection state.

[0086] In this embodiment, the limiting component 1107 includes a fixing plate 11071, an insertion interface 11072, a limiting groove 11073, a limiting plate 11074, a pressure cover 11075, and a spring 11076.

[0087] The fixing plate 11071 is fixedly installed on the top of the cab body 1 at the end away from the front window 102. The side of the fixing plate 11071 is provided with an insertion interface 11072 that mates with the guard bar 1102. The top of the fixing plate 11071 is provided with a limiting groove 11073 along the length direction. The limiting groove 11073 is connected to the insertion interface 11072.

[0088] A limiting plate 11074 is vertically slidably installed inside the limiting groove 11073. The bottom of both sides of the limiting plate 11074 is beveled. The pressure cover 11075 is fixedly installed on the top of the fixing plate 11071. Springs 11076 are evenly arranged between the bottom of the pressure cover 11075 and the limiting plate 11074, and the springs 11076 are always in a compressed state.

[0089] Local working principle: In the initial state, spring 3 11076 is always in a compressed state, exerting continuous downward pressure on the limiting plate 11074, so that the bottom of the limiting plate 11074 is tightly fitted with the protective rod 1102 in the insertion interface 11072. Since the contact side between the limiting plate 11074 and the protective rod 1102 is an inclined edge, under the pressure of spring 3 11076, the limiting plate 11074 forms a lateral limit on the protective rod 1102, preventing the protective rod 1102 from sliding freely along the guide rail 1101, ensuring that the moving protective mechanism 11 is stably stopped on the top of the cab body 1 in the initial state, realizing the top rockfall protection function.

[0090] When the energy-absorbing box 7 is completely compressed and deformed, and the moving protective mechanism 11 is pulled down by the steel wire rope 1106, the protective rod 1102 exerts an upward compressive force on the inclined side of the limiting plate 11074. This compressive force overcomes the compressive elastic force of the spring 11076 and pushes the limiting plate 11074 to slide upward along the limiting groove 11073. The limiting plate 11074 disengages from the protective rod 1102, releasing the limitation on the protective rod 1102, so that the protective rod 1102 can move smoothly down along the guide rail 1101 to the front window 102.

[0091] When the mobile protective mechanism 11 resets upward, the protective rod 1102 moves inward along the insertion interface 11072, and its side wall contacts the inclined edge of the limiting plate 11074 and generates an upward squeezing force, pushing the limiting plate 11074 to slide upward, and the spring 11076 is further compressed; when the protective rod 1102 is fully reset to the initial position, the limiting plate 11074 slides downward and resets under the elastic force of the spring 11076, and re-fits tightly with the protective rod 1102, restoring the limiting of the protective rod 1102, ensuring that the mobile protective mechanism 11 is stably parked on the top of the cab body 1.

[0092] In this embodiment, both ends of the shaft 1001 are fixed with sheaves, the outer diameter of the sheaves is larger than the diameter of the shaft 1001, and the wire rope 1106 is fixed to the surface of the sheaves.

[0093] Local working principle: In the initial state, the spool remains stationary with the shaft 1001, and the wire rope 1106 is taut, which does not affect the initial limit of the moving protective mechanism 11. When the energy-absorbing box 7 is fully deformed and triggers the rotation mechanism 10, the shaft 1001 drives the spool to rotate synchronously. The spool increases the winding radius of the wire rope 1106 through a larger outer diameter, improving the tension transmission efficiency, so that the wire rope 1106 is quickly tensioned and generates stable tension, which precisely pulls the connecting plate 1104 and drives the protective rod 1102 to move down along the guide rail 1101.

[0094] In this embodiment, the energy-absorbing box 7 is made of honeycomb aluminum alloy, and the anti-collision beam 8 is made of high-strength alloy steel.

[0095] Local Working Principle: The energy-absorbing box 7 is made of honeycomb aluminum alloy. The honeycomb structure has excellent buffering and energy absorption characteristics, while the aluminum alloy material combines lightweight and good plastic deformation capacity. When the mine car suffers a frontal impact, the impact energy first acts on the anti-collision beam 8. The anti-collision beam 8 is made of high-strength alloy steel, which has extremely high rigidity and impact resistance, and can directly withstand the force of the impacting object, avoiding excessive deformation of itself. At the same time, it disperses the concentrated impact force to multiple energy-absorbing boxes 7. Under the action of the impact force, the energy-absorbing box 7 undergoes controllable plastic deformation. Through the compression and collapse process of the honeycomb structure, it absorbs a large amount of impact energy, significantly weakening the impact force transmitted to the main body of the cab 1, reducing the vibration and deformation of the cab structure, and providing the first impact protection barrier for the cab. In conjunction with the subsequent linkage mechanism, it further improves the overall impact resistance performance.

[0096] In this embodiment, the wire rope 1106 is a galvanized high-strength wire rope. The front end of the top of the cab body 1 is vertically provided with a sliding hole that cooperates with the wire rope 1106. A sealing ring is provided on the inner side of the sliding hole, and an arc-shaped guide edge is provided at the top of the sliding hole.

[0097] Partial Working Principle: The wire rope 1106 is made of galvanized high-strength material. The galvanized layer effectively isolates air and moisture, preventing corrosion in the harsh mining environment. Its high strength ensures that it can withstand large tensile forces without breaking or excessive stretching when pulling the mobile protective mechanism 11, ensuring the reliability of power transmission. The sliding hole at the top of the cab body 1 provides a movement channel for the wire rope 1106. The sealing ring inside the sliding hole prevents dust, gravel, and moisture from entering the cab during mining operations, avoiding contamination or damage to internal components. The arc-shaped guide edge at the top of the sliding hole guides the wire rope 1106 to pass smoothly, reducing friction and wear between the wire rope 1106 and the edge of the sliding hole, reducing movement resistance, and ensuring that when the shaft 1001 rotates, the wire rope 1106 can smoothly and efficiently pull the protective rod 1102, ensuring the smooth operation of the mobile protective mechanism 11.

[0098] In this embodiment, the positioning groove 602 is an arc-shaped groove, and the inner diameter of the sliding groove 604 near the positioning groove 602 is smaller than the diameter of the positioning bead 605. The end of the sliding groove 604 near the vertical rod 606 is in clearance fit with the positioning bead 605.

[0099] Partial Working Principle: The positioning groove 602 is designed as an arc-shaped groove, which can perfectly fit the spherical surface of the positioning bead 605, increasing the contact area and improving the locking stability of the locking mechanism 6. It also adapts to the rotation trajectory of the sleeve 601 when the handle bar 4 rotates, allowing the positioning bead 605 to smoothly engage or disengage from the positioning groove 602. The inner diameter of the slide groove 604 near the positioning groove 602 is smaller than the diameter of the positioning bead 605, forming a limiting structure that effectively prevents the positioning bead 605 from falling out of the slide groove 604, ensuring the structural integrity of the locking mechanism 6. The end of the slide groove 604 near the vertical rod 606 is clearance-fitted with the positioning bead 605, providing sufficient sliding space for the positioning bead 605. This allows the positioning bead 605 to move flexibly along the slide groove 604 under the squeezing or releasing action of the vertical rod 606, achieving engagement and locking or disengagement from the positioning groove 602, ensuring the flexibility and reliability of the locking mechanism 6 operation.

[0100] like Figures 1-9 As shown in the figure, this embodiment provides a processing method for a highly stable and impact-resistant mining car cab, the process of which is as follows:

[0101] Step 1: Process the cab body 1, side door panel 101 and front window 102. The cab body 1 frame is formed by welding high-strength alloy steel, and the side door panel 101 and the front window 102 made of tempered glass are assembled.

[0102] Step 2: Fabricate the energy-absorbing box 7 and the anti-collision beam 8. Process the honeycomb aluminum alloy into the energy-absorbing box 7 and the high-strength alloy steel into the anti-collision beam 8, and fix the two to the front of the cab body 1.

[0103] Step 3: Assemble the rotating mechanism 10. Install components such as shaft 1001, first bevel gear 1002, and crossbar 1005 in the transmission chamber 9. Ensure that the first bevel gear 1002 is installed in place and rotates smoothly. Assemble the second spring 1007 and lever 1008 in place. Slide the crossbar 1005 out of the transmission chamber 9 and fix it to the anti-collision beam 8.

[0104] Step 4: Install the support rod 3 and the handrail 4. Rotate the support rod 3 into the fixed sleeve 2 and fix the bottom end of the support rod 3 to the second bevel gear 1004. The handrail 4 is fixed to the support rod 3 by the locking mechanism 6.

[0105] Step 5: Install guide rail 1101, guard rod 1102, wire rope 1106 and limit assembly 1107 between the top and front of the cab, and ensure that wire rope 1106 is fixedly connected to shaft 1001 to complete the assembly of the mobile protection mechanism 11.

[0106] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A highly stable and impact-resistant mining car cab, comprising a cab body (1), wherein the cab body (1) is provided with a side door panel (101) and a front window (102). Its features are: The cab body (1) is symmetrically provided with fixed sleeves (2) on both front ends. A support rod (3) is rotatably connected inside the fixed sleeve (2). A handrail (4) is fixedly installed on the support rod (3). The handrail (4) is initially perpendicular to the side of the cab body (1). A fixing block (5) is provided on the front window (102) corresponding to the rotation position of the handrail (4). The cab body (1) has energy-absorbing boxes (7) evenly distributed along the width direction at the front. An anti-collision beam (8) is fixed at the end of the energy-absorbing box (7) away from the cab body (1). A transmission chamber (9) is provided at the bottom of the cab body (1) near the energy-absorbing box (7). A rotating mechanism (10) is provided in the transmission chamber (9). The rotating mechanism (10) is connected to the support rod (3). The rotating mechanism (10) is used to rotate the handrail (4) on the support rod (3) to fit with the front window (102). The rotating mechanism (10) is also linked with the anti-collision beam (8). The top of the support rod (3) is provided with a locking mechanism (6), which is used to fix or unlock the position of the handrail (4); A movable protective mechanism (11) is provided between the top and front side of the main body of the cab (1). The movable protective mechanism (11) is linked with the rotating mechanism (10). In the initial state, the movable protective mechanism (11) is located on the top of the cab. When there is a frontal impact, the movable protective mechanism (11) can move to the front window (102) to form protection.

2. The highly stable and impact-resistant mining car cab according to claim 1, characterized in that: The rotating mechanism (10) includes a shaft (1001), a first bevel gear (1002), a side cover (1003), a second bevel gear (1004), a crossbar (1005), a strip groove (1006), a second spring (1007), and a lever (1008). The shaft (1001) is rotatably installed inside the transmission compartment (9) along the width direction of the cab body (1). Both ends of the transmission compartment (9) are provided with side covers (1003). Both ends of the shaft (1001) are equipped with first bevel gears (1002). The bottom end of the support rod (3) extends into the interior of the side cover (1003). The bottom end of the support rod (3) is fixed with a second bevel gear (1004) that meshes with the first bevel gear (1002). A crossbar (1005) is vertically fixed on the inner side of the anti-collision beam (8), and the crossbar (1005) slides horizontally to the inside of the transmission chamber (9). A strip groove (1006) is provided at the end of the crossbar (1005) away from the anti-collision beam (8). A lever (1008) is fixed at the middle position of the shaft (1001). The bottom end of the lever (1008) is inserted obliquely into the inside of the strip groove (1006). A spring (1007) is provided between the lever (1008) and the inner side of the transmission chamber (9) to limit the stability of the initial position of the lever (1008).

3. The highly stable and impact-resistant mining car cab according to claim 1, characterized in that: The locking mechanism (6) includes a sleeve (601), a positioning groove (602), a vertical groove (603), a sliding groove (604), a positioning bead (605), a vertical rod (606), a reset groove (607), a cover plate (608), a spring (609), a pull rod (610), and a pull ring (611). The sleeve (601) is fixedly sleeved on the upper and lower ends of the support rod (3). The two ends of the handrail (4) are fixedly connected to the sleeve (601) respectively. The inner wall of the sleeve (601) is evenly provided with positioning grooves (602) along the circumference. The support rod (3) is vertically provided with vertical grooves (603). The side of the support rod (3) is provided with sliding grooves (604) corresponding to the position of the positioning grooves (602). The sliding grooves (604) penetrate the side wall of the support rod (3). Positioning beads (605) are slidably provided inside the sliding grooves (604). A vertical rod (606) is vertically installed inside the vertical groove (603). Both the upper and lower ends of the vertical rod (606) are provided with reset grooves (607). The reset grooves (607) are annular and are misaligned with the positioning bead (605) in the initial state. The top of the support rod (3) is provided with a cover plate (608), and a spring (609) is provided between the bottom of the cover plate (608) and the vertical rod (606). A pull rod (610) is vertically fixed at the top of the vertical rod (606), and the pull rod (610) passes through the inside of the spring (609) and slides to the top of the cover plate (608). A pull ring (611) is fixed at the top of the pull rod (610).

4. The highly stable and impact-resistant mining car cab according to claim 2, characterized in that: The mobile protective mechanism (11) includes a guide rail (1101), a protective rod (1102), a connecting rod (1103), a connecting plate (1104), a roller (1105), a wire rope (1106), and a limiting assembly (1107). Guide rails (1101) are symmetrically arranged on the top and front sides of the cab body (1). Protective rods (1102) are evenly arranged between the two sets of guide rails (1101). Connecting rods (1103) are fixed at both ends of the protective rods (1102). Connecting plates (1104) are rotatably installed between adjacent connecting rods (1103) at the same end of multiple sets of protective rods (1102). Rollers (1105) are rotatably installed at the end of the connecting rods (1103) away from the protective rods (1102), and the rollers (1105) are in rolling cooperation with the guide rails (1101). A steel wire rope (1106) is provided on the outermost connecting plate (1104) at the top of the cab body (1) near the front window (102), and the bottom end of the steel wire rope (1106) is connected to the shaft (1001) of the rotating mechanism (10); A limiting component (1107) is provided at the top of the cab body (1) away from the front window (102) to limit the position of the guard bar (1102) in the initial state.

5. The highly stable and impact-resistant mining car cab according to claim 4, characterized in that: The limiting assembly (1107) includes a fixing plate (11071), a plug interface (11072), a limiting groove (11073), a limiting plate (11074), a pressure cap (11075), and a spring three (11076). The fixing plate (11071) is fixedly installed on the top of the cab body (1) at one end away from the front window (102). The side of the fixing plate (11071) is provided with a plug interface (11072) that cooperates with the guard rod (1102). The top of the fixing plate (11071) is provided with a limiting groove (11073) along the length direction. The limiting groove (11073) is connected to the plug interface (11072). A limiting plate (11074) is vertically slidably installed inside the limiting groove (11073). The bottom of both sides of the limiting plate (11074) is inclined. The pressure cover (11075) is fixedly installed on the top of the fixing plate (11071). Springs three (11076) are evenly arranged between the bottom of the pressure cover (11075) and the limiting plate (11074), and the springs three (11076) are always in a compressed state.

6. The highly stable and impact-resistant mining car cab according to claim 4, characterized in that: Both ends of the shaft (1001) are fixed with sheaves. The outer diameter of the sheaves is larger than the diameter of the shaft (1001). The wire rope (1106) is fixed to the surface of the sheaves.

7. The highly stable and impact-resistant mining car cab according to claim 1, characterized in that: The energy-absorbing box (7) is made of honeycomb aluminum alloy, and the anti-collision beam (8) is made of high-strength alloy steel.

8. The highly stable and impact-resistant mining car cab according to claim 4, characterized in that: The wire rope (1106) is made of galvanized high-strength wire rope. The front end of the top of the cab body (1) is vertically provided with a sliding hole that matches the wire rope (1106). A sealing ring is provided on the inner side of the sliding hole, and an arc-shaped guide edge is provided at the top of the sliding hole.

9. A highly stable and impact-resistant mining car cab according to claim 3, characterized in that: The positioning groove (602) is an arc-shaped groove. The inner diameter of the sliding groove (604) near the positioning groove (602) is smaller than the diameter of the positioning bead (605). The end of the sliding groove (604) near the vertical rod (606) is in clearance fit with the positioning bead (605).

10. A method for processing a high-stability, impact-resistant mining car cab, based on a high-stability, impact-resistant mining car cab according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Process the cab body (1), side door panel (101) and front window (102). The cab body (1) frame is formed by welding high-strength alloy steel, and the side door panel (101) and the front window (102) made of tempered glass are assembled. Step 2: Make the energy-absorbing box (7) and the anti-collision beam (8). The honeycomb aluminum alloy is processed into the energy-absorbing box (7), and the high-strength alloy steel is processed into the anti-collision beam (8). The two are then fixedly installed at the front of the cab body (1). Step 3: Assemble the rotating mechanism (10), install the shaft (1001), first bevel gear (1002), crossbar (1005) and other components in the transmission chamber (9), ensure that the first bevel gear (1002) is installed in place and rotates smoothly, spring 2 (1007) and lever (1008) are assembled in place, and the crossbar (1005) slides out of the transmission chamber (9) and is fixedly welded to the anti-collision beam (8); Step 4: Install the support rod (3) and the handrail (4), rotate the support rod (3) into the fixed sleeve (2), and fix the bottom end of the support rod (3) to the second bevel gear (1004). The handrail (4) is fixed on the support rod (3) by the locking mechanism (6). Step 5: Install guide rail (1101), guard rod (1102), wire rope (1106) and limit assembly (1107) between the top and front of the cab, and ensure that the wire rope (1106) is fixedly connected to the shaft (1001) to complete the assembly of the mobile protection mechanism (11).

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