A high resistance track stop

Abstract

The utility model discloses a high resistance track stopper relates to the technical field of wheel stopper, a high resistance track stopper, including fixed base, main bearing frame, baffle and drive unit, main bearing frame is fixed on the fixed base, and the movable slot is provided on main bearing frame along its height direction, and the baffle sliding plug -in is in the movable slot of main bearing frame, and two vertical holes are arranged on the baffle at intervals, drive unit includes two groups, and two groups drive unit interval fixed on the fixed base, the utility model discloses through the structure improvement, and the cylinder only provides the power of baffle lifting, and the impact load of mine car is by the rigid frame of baffle, main bearing frame and fixed base constitutes independent bearing and directly conducts to the foundation to the defect of the cylinder easy to damage because of direct bearing, and the reliability, durability and security of equipment are improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of wheel stop technology, specifically to a high-resistance track stop. Background Technology

[0002] In underground coal mine roadways, rail transport is the lifeline for transporting coal, materials, and personnel. Coal mine cars travel back and forth frequently in complex slopes and narrow spaces, and the reliability of their parking, loading, unloading, and ramp parking directly affects the efficiency of the entire production system and underground safety. The consequences of a vehicle runaway would be unimaginable.

[0003] To meet the needs of underground automation and efficiency improvement through manpower reduction, pneumatically driven stoppers have been adopted. These stoppers typically utilize the relatively readily available compressed air in the roadway as power, using a cylinder to drive a stop arm to achieve automated operation; however, in some existing designs, the cylinder, while serving as the driving source, also directly acts as the main load-bearing structure when in the stop position.

[0004] When a mine car collides with the stop arm, the enormous impact load is directly transmitted to the cylinder piston rod through the transmission mechanism. This design makes precision pneumatic components, which are not well-suited to withstanding lateral bending forces and pressure, the load-bearing structure supporting the vehicle. This fundamental structural defect easily leads to cylinder piston rod bending and seal damage, thereby causing rapid equipment failure and safety accidents.

[0005] Therefore, the core technical problem to be solved by this utility model is: how to separate the driving function and load-bearing function of the pneumatic stopper in the mechanical structure through structural innovation, so as to avoid the cylinder directly bearing the wheel load, thereby eliminating the defects of low equipment reliability, short life and poor safety caused by this.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] To address the aforementioned technical problems, this utility model provides a high-resistance track stop to solve the issues raised in the background section.

[0008] This utility model provides the following technical solution: a high-resistance track stop, comprising a fixed base, a main load-bearing frame, a baffle and a drive unit; The main support frame is fixed on the fixed base, and the main support frame is provided with a movable groove along its height direction; The baffle is slidably inserted into the movable groove of the main support frame, and two vertical channels are provided on the baffle at intervals; The drive unit consists of two sets, which are fixedly mounted on a fixed base at intervals. Each drive unit includes a side plate, a guide rail, a slider, a lifting plate, a lifting block, a connecting rod, and a cylinder. The bottom of the side plate is fixed to the fixed base, and one side of it is fixed to the back of the main load-bearing frame. The guide rail is fixed to the back side of the main load-bearing frame and is set parallel to the side plate at intervals; the slider is slidably fitted on the guide rail. The bottom of the cylinder is fixed to the mounting base, and one side of it is fixed to the side plate; One side of the lifting plate is fixedly connected to the top of the slider, and the other side is fixedly connected to the drive rod of the cylinder; The lifting block is fixed to the lifting plate; One end of the connecting rod slides into the vertical channel of the baffle, while the other end is fixed to the lifting block.

[0009] Preferably, a buffer unit is provided on the front side of the baffle; the buffer unit includes a plurality of springs fixed at intervals on the baffle, and a buffer plate fixed on the plurality of springs.

[0010] Preferably, multiple reinforcing ribs are provided at intervals between the back side of the main load-bearing frame and the fixed seat.

[0011] Preferably, the main support frame has a guide groove on the wall of the movable groove along its height direction; the baffle is provided with guide protrusions that slide in conjunction with the guide groove.

[0012] Preferably, it further includes a position detection unit; the position detection unit includes a first proximity switch for detecting the upper limit of the baffle and a second proximity switch for detecting its lower limit; both the first proximity switch and the second proximity switch are mounted on the main support frame.

[0013] The high-resistance track stop provided in this embodiment of the utility model has the following beneficial effects: Through structural improvement, the cylinder only provides the power for the baffle to rise and fall, while the impact load of the mine car is independently borne by the rigid frame composed of the baffle, the main load-bearing frame and the fixed seat and directly transmitted to the foundation, thereby eliminating the defect that the cylinder is easily damaged due to direct load, and significantly improving the reliability, durability and safety of the equipment. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present invention from angle one; Figure 2 This is a schematic diagram of the structure of this utility model from angle two; Figure 3 This is a structural schematic diagram of angle three of this utility model; Figure 4 This is a schematic diagram of the structure of this utility model from angle four; Figure 5 This utility model Figure 2A magnified view of part A in the image. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] See Figures 1-5 .

[0017] To address the problems mentioned in the background section, this utility model provides a high-resistance track stop to solve the aforementioned technical problems. The technical solution is as follows: A high-resistance track stop includes a fixed base 110, a main support frame 120, a baffle 130, and a drive unit; The main support frame 120 is fixed on the fixed base 110, and the main support frame 120 is provided with a movable groove 121 along its height direction; The baffle 130 is slidably inserted into the movable groove 121 of the main support frame 120, and two vertical channels 131 are provided on the baffle 130 at intervals; The drive unit includes two sets, which are fixed at intervals on the fixed base 110; each drive unit includes a side plate 164, a guide rail 151, a slider 152, a lifting plate 161, a lifting block 162, a connecting rod 163, and a cylinder 170. The bottom of the side plate 164 is fixed to the fixed base 110, and one side of it is fixed to the back side of the main load-bearing frame 120. The guide rail 151 is fixed to the back side of the main support frame 120 and is arranged parallel to the side plate 164 at intervals; the slider 152 is slidably engaged on the guide rail 151. The bottom of cylinder 170 is fixed on the mounting base 110, and one side of it is fixed on the side plate 164; One side of the lifting plate 161 is fixedly connected to the top of the slider 152, and the other side is fixedly connected to the drive rod of the cylinder 170. The lifting block 162 is fixed on the lifting plate 161; One end of the connecting rod 163 is slidably fitted in the vertical channel 131 of the baffle 130, and the other end is fixed to the lifting block 162.

[0018] It should be noted that the upper end of the connecting rod and the vertical channel of the baffle are slidably inserted, forming a non-rigid connection; this design converts the horizontal drive of the cylinder into the vertical lifting and lowering of the baffle. To prevent the connecting rod from disengaging from the baffle during the lifting and lowering process, a limiting structure (such as a limiting plate or protrusion) can be set at the end of the connecting rod to provide the necessary axial constraint.

[0019] In this embodiment, a buffer unit is provided on the front side of the baffle 130; the buffer unit includes a plurality of springs 141 fixed at intervals on the baffle 130, and a buffer plate 142 fixed on the plurality of springs 141. The buffer unit absorbs part of the impact energy during a collision, protecting the equipment and reducing the impact on the vehicle.

[0020] In this embodiment, a plurality of reinforcing ribs 111 are provided at intervals between the back side of the main support frame 120 and the fixed base 110.

[0021] In this embodiment, the main support frame 120 has a guide groove on the wall of the movable groove 121 along its height direction; the baffle 130 has a guide protrusion that slides in cooperation with the guide groove.

[0022] In this embodiment, it also includes a position detection unit; the position detection unit includes a first proximity switch for detecting the upper limit of the baffle 130 and a second proximity switch for detecting its lower limit; both the first proximity switch and the second proximity switch are mounted on the main support frame.

[0023] It should be noted that throughout the entire working cycle, the position detection unit (first and second proximity switches) monitors the limit position of the baffle 130 in real time and feeds back signals to the control system, ensuring the accuracy and safety of the operation.

[0024] The working method of a high-resistance track stop provided in this embodiment of the utility model is as follows: (1) Initial state: The baffle is lowered and the vehicle passes through: This utility model is assembled between two tracks. When not in operation, the piston rod of the cylinder 170 is in a retracted state. Through the transmission of the lifting plate 161 and the connecting rod 163, the baffle 130 is lowered to the lowest point, and its top is lower than the track plane, so it will not obstruct the normal passage of the vehicle wheelset.

[0025] (2) Establishing a stop during the driving and lifting process: When parking is required, the piston rod of cylinder 170 extends and pushes the lifting plate 161 to move horizontally. The lifting plate 161 drives the slider 152 on it to slide smoothly along the guide rail 151. At the same time, the lifting block 162 fixed on the lifting plate 161 moves synchronously.

[0026] The lifting block 162 drives the connecting rod 163 to move. Since the upper end of the connecting rod 163 is slidably engaged in the vertical channel 131 of the baffle 130, this movement converts the horizontal thrust into an upward lifting force on the baffle 130, driving the baffle 130 to rise vertically along the movable groove 121 of the main support frame 120.

[0027] When the piston rod is fully extended, the baffle 130 reaches the preset upper limit working position, forming a solid stop barrier. During this process, the cylinder only provides the power required for lifting and lowering.

[0028] (3) Load transmission path in bearing and stopping states: When the mine car wheel hits or stops on the raised baffle 130, the huge impact force and static load F are completely applied to the baffle 130.

[0029] Load-bearing path: The impact load F is directly transferred to the main load-bearing frame 120, which slides with it, through the baffle 130, and then through the rigid frame composed of the fixed seat 110 and the reinforcing rib 111, and finally directly to the foundation. This path is entirely borne by a high-strength mechanical structure, achieving safe load dissipation.

[0030] (4) Reset process to release the stop: After parking, the piston rod of cylinder 170 retracts, and pulls baffle 130 through lifting plate 161 and connecting rod 163, so that it descends smoothly along the movable groove 121 to the initial position and restores the track to smooth.

[0031] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A high-resistance track stop, characterized in that, include: Fixed base, main load-bearing frame, baffle and drive unit; The main support frame is fixed on the fixed base, and the main support frame is provided with a movable groove along its height direction; The baffle is slidably inserted into the movable groove of the main support frame, and two vertical channels are provided on the baffle at intervals; The drive unit consists of two sets, which are fixedly mounted on a fixed base at intervals. Each drive unit includes a side plate, a guide rail, a slider, a lifting plate, a lifting block, a connecting rod, and a cylinder. The bottom of the side plate is fixed to the fixed base, and one side of it is fixed to the back of the main load-bearing frame. The guide rail is fixed to the back side of the main load-bearing frame and is set parallel to the side plate at intervals; the slider is slidably engaged on the guide rail. The bottom of the cylinder is fixed to the mounting base, and one side of it is fixed to the side plate; One side of the lifting plate is fixedly connected to the top of the slider, and the other side is fixedly connected to the drive rod of the cylinder; The lifting block is fixed to the lifting plate; One end of the connecting rod slides into the vertical channel of the baffle, while the other end is fixed to the lifting block.

2. The high-resistance track stop according to claim 1, characterized in that, A buffer unit is provided on the front side of the baffle; the buffer unit includes multiple springs fixed at intervals on the baffle, and a buffer plate fixed on the multiple springs.

3. The high-resistance track stop according to claim 1, characterized in that, Multiple reinforcing ribs are spaced apart between the back of the main load-bearing frame and the fixed base.

4. The high-resistance track stop according to claim 1, characterized in that, The main support frame has guide grooves on the wall of the movable groove along its height direction; the baffle is provided with guide protrusions that slide in conjunction with the guide grooves.

5. The high-resistance track stop according to claim 1, characterized in that, It also includes a position detection unit; the position detection unit includes a first proximity switch for detecting the upper limit of the baffle and a second proximity switch for detecting its lower limit; both the first proximity switch and the second proximity switch are mounted on the main support frame.

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