Hydraulic lifting platform for rack railway vehicle

Abstract

The utility model discloses a hydraulic lifting platform for rack rail car relates to mining lifting platform technical field, including base, the middle part welding of base has longitudinal beam, and the four corners of base top are respectively fixed with four telescopic steel columns, and a plurality of limit holes are arranged on telescopic steel column, and the top of four telescopic steel columns is fixed with the top seat, and the top of top seat is equipped with the adjusting part laterally, and the adjusting part is equipped with the protective cover, and the top end surface middle part symmetry of top seat is equipped with two telescopic guide rods, the utility model discloses the setting of oil cylinder can accurate control the lifting height of top seat according to need, through the setting of connector, can realize the quick assembly of lifting platform and rack rail car, guarantee the stability of overall structure in the rack rail car operation process, through the setting of protective cover, can intercept the rock debris, coal block that falls on the top of mine, avoid its to smash the damage lifting platform, solved the problem that the lifting platform top seat is not protected under the mining scene, and the rock debris, coal block that falls on the top is easy to smash the equipment.

Description

Technical Field

[0001] This utility model relates to the field of mining lifting platform technology, and in particular to a hydraulic lifting platform for a rack rail vehicle. Background Technology

[0002] In mining operations, the hydraulic lifting platform for rack rail vehicles is the core equipment that carries testing instruments, maintenance tools and personnel. Its top area is directly exposed to the complex mining environment. Rock fragments are easily generated from the top of the roadway due to blasting vibration and the bumps of the mine car. Coal mining faces are also often accompanied by coal block collapses. If these falling objects directly hit the equipment or personnel on the top, it will not only cause high equipment maintenance costs, but may also cause safety accidents. Traditional mining hoisting platforms generally lack top protection devices, leaving the top seat and the equipment it supports completely exposed to the mining environment. Underground and open-pit mining areas present significant risks of falling debris. Traditional equipment employs temporary protection methods such as "laying steel plates" and "welding fixed covers" to mitigate these risks, but these methods have significant drawbacks: laid steel plates, lacking fixing devices, are prone to slipping when the hoisting platform moves or experiences bumps, potentially damaging the equipment; while welded fixed covers can block falling objects, they completely enclose the top seat area, requiring manual disassembly during equipment loading and unloading, severely impacting operational efficiency. Therefore, these problems need to be addressed. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a hydraulic lifting platform for rack rail vehicles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a hydraulic lifting platform for a rack rail vehicle, comprising a base, a longitudinal beam welded to the middle of the base, four telescopic steel columns fixedly connected to the four corners of the top of the base, a plurality of limiting holes equally spaced on the telescopic steel columns, a top seat fixedly connected to the top of the four telescopic steel columns, an adjusting component horizontally provided on the top of the top seat, a protective cover provided on the adjusting component, and two telescopic guide rods symmetrically installed in the middle of the top surface of the top seat, the extended ends of the telescopic guide rods being hinged to the bottom of the protective cover.

[0005] Preferably, two lower lugs are symmetrically fixed to the longitudinal beam, and two upper lugs are symmetrically fixed to the bottom of the top seat. A hydraulic cylinder is provided between the lower lugs and the upper lugs, with the top of the hydraulic cylinder hinged to the upper lug and the bottom of the hydraulic cylinder hinged to the lower lug.

[0006] Preferably, a mounting block is fixedly connected to one side of the base, and a connector is fixedly connected to the mounting block. The connector has a through hole for fixing.

[0007] Preferably, the adjusting component includes two connecting plates symmetrically arranged on the side wall of the top seat, a bidirectional lead screw rotatably arranged between the two connecting plates, a motor installed on one side of one of the connecting plates, the output end of the motor being coaxially fixed to one end of the bidirectional lead screw, and a moving block being sleeved on both ends of the bidirectional lead screw.

[0008] Preferably, the protective cover is composed of two protective plates hinged together, with a rotating shaft between the two protective plates. Connecting plates are fixed to both ends of the bottom of the protective cover, and a hinge seat is fixed to the movable block. The hinge seat is hinged to the connecting plate.

[0009] Preferably, the telescopic steel column includes an outer sleeve and an inner sleeve that is slidably disposed within the outer sleeve. The limiting holes are respectively opened on the outer sleeve and the inner sleeve. A locking bolt is screwed onto the side wall of the outer sleeve. One end of the locking bolt passes through the limiting hole of the outer sleeve and is inserted into the limiting hole of the inner sleeve.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the hydraulic cylinder and the lower ear seat can provide a powerful driving force, which facilitates precise control of the lifting height of the top seat as needed; the cooperation between the base and the connector can realize the rapid assembly of the lifting platform and the rack car, ensuring the stability of the overall structure during the operation of the rack car; the protective cover can intercept rock fragments and coal blocks falling from above the mine, preventing them from damaging the lifting platform, thus solving the problem that the top seat of the lifting platform is unprotected in mining scenarios, and that falling rock fragments and coal blocks can easily damage the equipment. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall first-view structure proposed in this utility model; Figure 2 This is a schematic diagram of the internal second-view structure proposed in this utility model; Figure 3 This is a schematic diagram of the structure of some parts proposed in this utility model; Figure 4 This is a schematic diagram of the adjustment component structure proposed in this utility model.

[0012] The numbers in the diagram are: 1. Connector; 2. Through pin hole; 3. Longitudinal beam; 4. Base; 5. Hydraulic cylinder; 6. Lower ear seat; 7. Motor; 8. Telescopic steel column; 9. Limiting hole; 10. Top seat; 11. Two-way lead screw; 12. Telescopic guide rod; 13. Moving block; 14. Protective cover. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figures 1 to 4 This utility model discloses a hydraulic lifting platform for a rack rail vehicle, comprising a base 4, with a longitudinal beam 3 welded to the middle of the base 4. The longitudinal beam 3 facilitates the distribution and bearing of the load generated during the lifting process of the platform, reducing the deformation of the base 4. Four telescopic steel columns 8 are fixedly connected to the four corners of the top of the base 4, which enhances the overall rigidity and stability of the lifting platform and improves its load-bearing capacity. Multiple limiting holes 9 are equidistantly opened on the telescopic steel columns 8, and a top seat 10 is fixedly connected to the top of the four telescopic steel columns 8, which facilitates the installation of adjustment components. An adjustment component is provided laterally on the top of the top seat 10, and a protective cover 14 is provided on the adjustment component. Two telescopic guide rods 12 are symmetrically installed in the middle of the top surface of the top seat 10. The extended ends of the telescopic guide rods 12 are hinged to the bottom of the protective cover 14, which ensures that the protective cover 14 moves along a fixed trajectory during opening and closing, preventing deviation and enhancing the structural stability of the protective cover 14.

[0015] In this utility model, two lower ear seats 6 are symmetrically fixed to the longitudinal beam 3, and two upper ear seats are symmetrically fixed to the bottom of the top seat 10. A hydraulic cylinder 5 is provided between the lower ear seats 6 and the upper ear seats. The top of the hydraulic cylinder 5 is hinged to the upper ear seat, and the bottom of the hydraulic cylinder 5 is hinged to the lower ear seat 6. The hydraulic cylinder 5 provides a strong driving force to drive the top seat 10 and the upper components to rise and fall smoothly. A mounting block is fixed to one side of the base 4, and a connector 1 is fixed to the mounting block. The connector 1 has a through hole 2 for fixing. The connector 1 facilitates docking with the corresponding component of the rack car, realizing the rapid assembly of the lifting platform and the rack car. The adjusting component includes two connecting plates symmetrically arranged on the side wall of the top seat 10. A bidirectional screw 11 is rotatably provided between the two connecting plates. A motor 7 is installed on one side of one of the connecting plates. The output end of the motor 7 is coaxially fixed to one end of the bidirectional screw 11. Both ends of the bidirectional screw 11 are sleeved with moving parts. The moving block 13, through the adjustment component, facilitates smooth and synchronized movement, providing stable power for the opening and closing of the protective cover 14. The protective cover 14 is composed of two protective plates hinged together, with a rotating shaft between the two protective plates. Connecting plates are fixed to both ends of the bottom of the protective cover 14, and a hinge seat is fixed to the moving block 13. The hinge seat is hinged to the connecting plate. The protective cover 14 can easily form a complete protective barrier to directly intercept falling debris from above and prevent it from damaging the lifting platform. The telescopic steel column 8 includes an outer sleeve and an inner sleeve that slides inside the outer sleeve. Limiting holes 9 are respectively opened on the outer sleeve and the inner sleeve. A locking bolt is screwed onto the side wall of the outer sleeve. One end of the locking bolt passes through the limiting hole 9 of the outer sleeve and is inserted into the limiting hole 9 of the inner sleeve. The limiting hole 9 facilitates fixing the length of the telescopic steel column 8 to prevent it from extending or retracting on its own during operation and to ensure the stability of the height of the top seat 10.

[0016] Working Principle: In the use of this utility model, firstly, each electrical component in this application is connected to the power source. Then, the device quickly docks with the rack car via connector 1. Next, the base 4 serves as the basic frame of the entire device. The longitudinal beam 3 welded in the middle enhances the structural strength. The longitudinal beam 3 and the base 4 stabilize the structure, allowing the top load to be evenly transferred to the rack car, avoiding excessive local stress that could lead to deformation. The telescopic steel columns 8 at the four corners of the base 4 provide vertical support for the top seat 10. Then, the lower ear seat 6 on the longitudinal beam 3 and the upper ear seat at the bottom of the top seat 10 provide upper and lower hinge points for the hydraulic cylinder 5. When high-pressure hydraulic oil is introduced into the hydraulic cylinder 5, the piston rod extends and pushes the upper ear seat upward, causing the top seat 10 to rise synchronously. When the hydraulic cylinder 5 returns oil, the piston rod retracts, and the top seat 10 descends under its own weight and load. During the lifting and lowering process of the top seat 10, the telescopic steel columns 8 at the four corners extend and retract synchronously, through the rigid... The structure restricts the horizontal displacement of the top seat 10, ensuring that the top seat 10 always remains horizontal and avoids tilting. When the top seat 10 reaches the target height, the locking bolt is screwed into the corresponding limiting hole 9 of the outer sleeve and the inner sleeve, which can mechanically lock the length of the telescopic steel column 8. With the help of the hydraulic cylinder 5, the hydraulic lock provides double protection for the height stability of the top seat 10. Then, the movement of the protective cover 14 is driven by the adjustment component. The motor 7 is fixed on the connecting plate on the side wall of the top seat 10. Its output end drives the bidirectional screw 11 to rotate forward and backward. The moving blocks 13 at both ends of the bidirectional screw 11 will move synchronously to the middle or both sides because the threads rotate in opposite directions. The thrust is transmitted through the connecting plate at the bottom of the hinge seat and the protective cover 14. Finally, when the moving blocks 13 move to both sides, they push the protective plate to rotate upward and close around the rotation axis, forming a complete protective barrier that can intercept rock fragments and coal blocks falling from above the mine. This concludes the use of a hydraulic lifting platform for a rack rail vehicle.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic lifting platform for a rack rail vehicle, comprising a base (4), characterized in that: The base (4) is welded with a longitudinal beam (3) in the middle. Four telescopic steel columns (8) are fixed to the four corners of the top of the base (4). Multiple limiting holes (9) are equally spaced on the telescopic steel columns (8). A top seat (10) is fixed to the top of the four telescopic steel columns (8). An adjustment component is provided horizontally on the top of the top seat (10). A protective cover (14) is provided on the adjustment component. Two telescopic guide rods (12) are symmetrically installed in the middle of the top surface of the top seat (10). The extended end of the telescopic guide rod (12) is hinged to the bottom of the protective cover (14).

2. The hydraulic lifting platform for a rack rail vehicle according to claim 1, characterized in that: Two lower ear seats (6) are symmetrically fixed to the longitudinal beam (3), and two upper ear seats are symmetrically fixed to the bottom of the top seat (10). A hydraulic cylinder (5) is provided between the lower ear seat (6) and the upper ear seat. The top of the hydraulic cylinder (5) is hinged to the upper ear seat, and the bottom of the hydraulic cylinder (5) is hinged to the lower ear seat (6).

3. The hydraulic lifting platform for a rack rail vehicle according to claim 1, characterized in that: A mounting block is fixed to one side of the base (4), and a connector (1) is fixed to the mounting block. A pin hole (2) for fixing is provided on the connector (1).

4. The hydraulic lifting platform for a rack rail vehicle according to claim 1, characterized in that: The adjustment component includes two connecting plates symmetrically arranged on the side wall of the top seat (10). A bidirectional lead screw (11) is rotatably provided between the two connecting plates. A motor (7) is installed on one side of one of the connecting plates. The output end of the motor (7) is coaxially fixed to one end of the bidirectional lead screw (11). Moving blocks (13) are sleeved on both ends of the bidirectional lead screw (11).

5. A hydraulic lifting platform for a rack railcar according to claim 4, characterized in that: The protective cover (14) is composed of two protective plates hinged together. A rotating shaft is provided between the two protective plates. Connecting plates are fixed at both ends of the bottom of the protective cover (14). A hinge seat is fixed on the moving block (13). The hinge seat is hinged to the connecting plate.

6. The hydraulic lifting platform for a rack rail vehicle according to claim 1, characterized in that: The telescopic steel column (8) includes an outer sleeve and an inner sleeve that is slidably disposed inside the outer sleeve. The limiting holes (9) are respectively opened on the outer sleeve and the inner sleeve. A locking bolt is screwed onto the side wall of the outer sleeve. One end of the locking bolt passes through the limiting hole (9) of the outer sleeve and is inserted into the limiting hole (9) of the inner sleeve.

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