Walking type hydraulic support in-place platform
By designing a walking-type seating platform for underground hydraulic supports in coal mines, the combined structure of the box-shaped main platform, telescopic arms, guide plates and limit blocks solves the problem of the hydraulic support's rollover and damage when unloading the truck and placing it in place. Overturning problem is eliminated and a safer unloading process is achieved.
Patent Information
- Application Number
- CN202420446619.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-03-08
AI Technical Summary
In the prior art, there is a risk of overturning and overturning during the unloading process of the coal mine underground hydraulic support, resulting in a greater safety hazard.
A mobile hydraulic support placement platform is designed, which adopts a box-shaped main platform and a retractable box-shaped telescopic arm, combined with a right-angled trapezoidal guide plate and a track sliding limit block to ensure that the hydraulic support can be stable when unloading the truck and placing it in place. Land on the ground to avoid rollover and overturning.
Through this design, the hydraulic support can land smoothly when unloading the truck into position, significantly reducing the risk of rollover and overturning and improving safety.
Smart Images
Figure CN222376534U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device for transporting a hydraulic support in an underground coal mine, in particular to a step-type hydraulic support positioning platform. Background Art
[0002] Due to the influence of geological conditions of coal seam occurrence, some fully mechanized mining faces adopt oblique cut eye arrangement, and the method of adding hydraulic supports while mining is adopted during the mining process. In the prior art, the hydraulic supports of oblique cut eyes are unloaded and put into place by using a return column winch during installation. In the process of unloading and putting into place by using the return column winch, the hydraulic supports are at risk of overturning and overturning, which poses a great safety hazard. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a movable hydraulic support positioning platform in which the hydraulic support is relatively stable during the unloading and positioning process, thereby effectively reducing safety hazards.
[0004] In order to solve the above technical problems, the utility model provides a movable hydraulic support positioning platform, which has a box-shaped main platform, in which a box-shaped telescopic arm that can be extended or retracted is installed, and the bottom plate of the main platform extends forward to form a mounting seat plate, and mounting seats are respectively fixed on the left and right sides of the mounting seat plate, and a hydraulic cylinder is hinged on the mounting seat, and the front end of the piston rod of the hydraulic cylinder is hinged with a track clamp that can be fixed on the track, and a chain ring positioning column is also fixed on the mounting seat plate between the left and right hydraulic cylinders, and the rear end of the box-shaped telescopic arm is fixedly connected to a guide plate with a right-angled trapezoidal cross-section, the height of the front end of the guide plate is consistent with the height of the main platform, and the height of the rear end is lower than the height of the front end, and pairs of track sliding limit blocks that cooperate with the track are fixed at intervals on the left and right sides of the bottom plate and the bottom of the guide plate.
[0005] With the movable hydraulic support positioning platform of the above structure, when unloading the vehicle, the rear part of the hydraulic support first falls to the ground along the guide plate, and then the front part slides and falls to the ground along the guide plate, and the landing is stable, and no rollover or overturning accidents will occur again.
[0006] As an improvement of the present invention, driving cylinders are respectively fixed on the left and right sides inside the box-shaped main platform, and the piston rods of the driving cylinders on the left and right sides are respectively fixedly connected to the left and right side wall panels of the box-shaped telescopic arm. The extension and retraction of the piston rods of the driving cylinders on the left and right sides can drive the box-shaped telescopic arm to extend or retract.
[0007] As a further improvement of the present invention, limiting holes are provided at intervals from front to back on both sides of the top plate of the main platform.
[0008] Furthermore, a vehicle receiving limit platform is fixed on the left and right sides of the rear end of the guide plate respectively, and the vehicle receiving limit platform includes a front limit baffle and a rear support plate connected to the limit baffle, and the height of the support plate is lower than the height of the limit baffle.
[0009] Furthermore, hydraulic support limit plates extending upward are respectively fixed to the rear portions of the left and right sides of the box-shaped telescopic arm.
[0010] In the utility model, when the box-shaped telescopic arm is retracted to make the rear of the bracket fall to the ground, inserting a blocking rod into the limiting hole can prevent the hydraulic bracket from sliding forward, so that the rear of the hydraulic bracket can smoothly tilt and fall to the ground along the right-angle trapezoidal guide plate; after the vehicle receiving limiting platform is set, it is convenient for the utility model to dock with the flatbed truck and maintain relative balance; after the hydraulic bracket limiting plates are set on the left and right sides of the box-shaped telescopic arm, it can further prevent the hydraulic bracket from sliding to both sides, and the unloading and positioning process is more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0012] Figure 1 It is a main structural schematic diagram of a step-type hydraulic support positioning platform of the utility model.
[0013] Figure 2 It is a left-side structural schematic diagram of the utility model of a movable hydraulic support positioning platform.
[0014] Figure 3 The utility model is a schematic diagram of the structure of the step-type hydraulic support positioning platform viewed from above.
[0015] Figure 4-7 It is a schematic diagram of the working state when the utility model is used for the hydraulic support for transporting in place. DETAILED DESCRIPTION
[0016] See also Figure 1 - Figure 3The utility model of the step-type hydraulic support positioning platform is characterized in that it has a box-shaped main platform 10, in which a box-shaped telescopic arm 20 that can be extended or retracted is installed, and the bottom plate 11 of the main platform extends forward to form a mounting seat plate 12, and mounting seats 13 are respectively fixed on the left and right sides of the mounting seat plate, and a hydraulic cylinder 14 is hinged on the mounting seat, and the front end of the piston rod of the hydraulic cylinder is hinged with a track clamp 15 that can be fixed on the track, and a chain ring positioning column 16 is also fixed on the mounting seat plate between the left and right hydraulic cylinders. The rear end of the box-shaped telescopic arm is fixedly connected to a guide plate 30 with a right-angled trapezoidal cross-section, and the height of the front end of the guide plate is consistent with the height of the main platform, and the height of the rear end is lower than the height of the front end, and the left and right sides of the bottom plate and the bottom of the guide plate are fixed with pairs of track sliding limit blocks 9 that cooperate with the track. The left and right sides of the box-shaped main platform 10 are respectively fixed with driving cylinders 21. The piston rods of the driving cylinders on the left and right sides are respectively fixedly connected to the left and right side wall panels of the box-shaped telescopic arm 20. The extension and retraction of the piston rods of the driving cylinders on the left and right sides can drive the box-shaped telescopic arm to extend or retract. Limiting holes 18 are arranged at intervals from front to back on both sides of the top plate 17 of the main platform 10. The left and right sides of the rear end of the guide plate are respectively fixed with vehicle receiving limiting platforms 31. The vehicle receiving limiting platforms include a limiting baffle 32 on the front side and a supporting plate 33 on the rear side connected to the limiting baffle. The height of the supporting plate is lower than the height of the limiting baffle. The supporting plate is used to support the vehicles on both sides of the front of the flatbed truck. The left and right rear parts of the box-shaped telescopic arm 20 are respectively fixed with hydraulic support limiting plates 22 extending upward.
[0017] See also Figure 4 - Figure 7 The process of unloading the vehicle using the utility model is as follows:
[0018] Step 1: Get in place, see Figure 4 , place the utility model on the underground track (the underground track is not shown), the tracks on both sides are just located between the left and right paired track sliding limit blocks 9 at the bottom of the bottom plate and the guide plate, and fix the track clamp 15 hinged at the front end of the piston rod of the hydraulic cylinder on the track. At this time, the box-shaped telescopic arm 20 is in an extended state; the second step: the hydraulic support moves onto the platform by itself, see Figure 5 , dock the flatbed truck equipped with the hydraulic support with the utility model, overlap the car bumpers on both sides of the front end of the flatbed truck on the support plate 33 on the rear side of the car receiving limit platform 31, and limit the limit baffle 32 on the front side of the car receiving limit platform. The push rod of the hydraulic support is connected to the chain ring positioning column 16 on the mounting seat plate of the utility model through a chain ring. The hydraulic support can move from the flatbed truck to the main platform of the utility model by self-propelled, and the utility model can walk on the track through the hydraulic cylinder 14 hinged on the mounting seat. After reaching the unloading point, unload the hydraulic support; the third step: first make the rear of the support fall to the ground, see Figure 6, drive the driving cylinder 21 to make the box-shaped telescopic arm in a retracted state. At this time, it is necessary to insert a blocking rod into the limiting hole 18 to prevent the hydraulic support from sliding forward. When the box-shaped telescopic arm is retracted, the rear part of the hydraulic support tilts along the right-angled trapezoidal guide plate 30 and falls to the ground; the fourth step is to make the front of the support fall to the ground, see Figure 7 At this time, the connection between the hydraulic support push rod and the chain link positioning column must be released first, and then the hydraulic cylinder 14 is driven to move the utility model forward, so that the front part of the hydraulic support can slide along the guide plate 30 to the ground, and the hydraulic support can be unloaded and put into place smoothly. Repeat the above steps to continuously complete the unloading and positioning tasks of the hydraulic support.
[0019] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the embodiments of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.
Claims
1. A mobile hydraulic support positioning platform, characterized by: The invention relates to a box-shaped main platform (10), wherein a box-shaped telescopic arm (20) is installed in the main platform and can be extended or retracted therein. The bottom plate (11) of the main platform extends forward to form a mounting seat plate (12). Mounting seats (13) are respectively fixed on the left and right sides of the mounting seat plate. A hydraulic cylinder (14) is hinged on the mounting seat. The front end of the piston rod of the hydraulic cylinder is hinged with a track clamp (15) that can be fixed on the track. A chain link positioning column (16) is also fixed on the mounting seat plate between the left and right hydraulic cylinders. A guide plate (30) with a right-angle trapezoidal cross section is fixedly connected to the rear end of the box-shaped telescopic arm. The height of the front end of the guide plate is consistent with the height of the main platform, and the height of the rear end is lower than the height of the front end. Pairs of track sliding limit blocks (9) that cooperate with the track are fixed at intervals on the left and right sides of the bottom plate and the bottom of the guide plate.
2. The step-type hydraulic support positioning platform according to claim 1 is characterized in that: Driving cylinders (21) are fixed on the left and right sides of the box-shaped main platform (10), respectively. The piston rods of the driving cylinders on the left and right sides are fixedly connected to the left and right side panels of the box-shaped telescopic arm (20), respectively. The extension and retraction of the piston rods of the driving cylinders on the left and right sides can drive the box-shaped telescopic arm to extend or retract.
3. The movable hydraulic support positioning platform according to claim 1, characterized in that: Limiting holes (18) are arranged at intervals on both sides of the top plate (17) of the main platform (10) from front to back.
4. The movable hydraulic support positioning platform according to claim 1, characterized in that: A vehicle receiving limiting platform (31) is fixed to the left and right sides of the rear end of the guide plate, respectively. The vehicle receiving limiting platform comprises a limiting baffle plate (32) at the front side and a supporting plate (33) at the rear side connected to the limiting baffle plate. The height of the supporting plate is lower than that of the limiting baffle plate.
5. The movable hydraulic support positioning platform according to claim 1, characterized in that: The left and right rear parts of the box-shaped telescopic arm (20) are respectively fixed with hydraulic support limit plates (22) extending upward.