A compound sliding car stopper for mining with adjustable car stop distance

Abstract

The present invention relates to the technical field of vehicle stoppers, and in particular to a compound sliding vehicle stopper for mining with an adjustable vehicle stop distance, comprising a chassis, a track, and a wheel block linkage mechanism, wherein the track and the wheel block linkage mechanism are both fixed on the chassis; compared with the prior art, the compound sliding vehicle stopper for mining with an adjustable vehicle stop distance provided by the present invention is suitable for occasions where vehicle stop is required in metal and non-metal mine rail transportation, and can be extended to general occasions where other rail transportation needs to stop vehicles with different wheelbases at the same time, on the one hand, precise vehicle stop can be achieved, and on the other hand, stepless adjustment of the vehicle stop distance can be achieved, thereby being able to adapt to the vehicle stop and vehicle release functions of vehicles with different wheelbases at the same time, and in addition, efficient linkage of the mechanism is achieved through a hydraulic system and a crank-connecting rod mechanism, which is convenient for automation, reduces personnel costs, and has a high degree of adaptability, functionality and economy.

Description

Technical Field

[0001] The invention relates to the technical field of car stoppers, and in particular to a compound sliding car stopper for mining with adjustable car stop distance. Background Art

[0002] Car blockers are commonly used in mines and are widely used in rail-type transport shaft or inclined shaft yards, shaft cages, and middle-section horse head gates underground. Car blockers are divided into single and compound types according to their uses. The single type is only used for parking and blocking trains, while the compound type can not only stop trains but also decompose trains to release limited numbers of trains. According to the blocking method, they can be divided into four types: wheel blocker, axle blocker, blocking plate and bumper blocker. Among them, the wheel blocker is the most commonly used in mines because of its simple structure, safety and reliability. According to its power source, it can be divided into manual and hydraulic types.

[0003] The traditional compound car blocker for mining is a fixed structure, generally composed of two single car blockers spliced ​​together, with a fixed car blocking distance, which cannot be adjusted. It is only suitable for one type of vehicle wheelbase, and has poor linkage. This problem is particularly obvious in the cage due to limited space. When it is necessary to block the car, first close the front car blocker wheel block, the vehicle drives along the track to the front wheel block position to stop, and then close the rear car blocker wheel block to prevent the vehicle from moving forward and backward, and then perform subsequent operations such as disassembling the vehicle. When it is necessary to release the vehicle, first open the front car blocker wheel block, and manually or mechanically push the car away from the car blocker. It can be seen that the blocking distance of the traditional car blocker cannot be adjusted. When the wheelbases of all vehicles that need to be blocked in the mine are different, the car blocker cannot achieve accurate blocking, and even the rear wheel block of the car blocker will be at the wheel of the subsequent rail vehicle, and the rear wheel block of the car blocker cannot be closed, which affects production and poses a safety hazard. At the same time, due to the certain logical relationship between the actions of the front and rear wheel blocks, the transmission compound car blocker has no linkage or poor linkage.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a compound sliding car blocker for mining with adjustable car blocking distance, which can realize stepless adjustment of the car blocking distance of the car blocker within a certain range, can adapt to the operation of vehicles with different wheelbases at the same time, accurately block the car and realize high linkage operation.

[0006] The invention provides a compound sliding car blocker for mining with adjustable car blocking distance, comprising a chassis, a track, and a wheel block linkage mechanism, wherein the track and the wheel block linkage mechanism are both fixed on the chassis;

[0007] The wheel block linkage mechanism includes a front wheel block mechanism, a rear wheel block mechanism, a wheel block rotating shaft, a slidable bearing and a hydraulic drive system;

[0008] The hydraulic drive system includes a horizontal movement hydraulic drive mechanism and a rotary movement hydraulic drive mechanism;

[0009] The front wheel block mechanism and the rear wheel block mechanism both include a left wheel block, a right wheel block, a crank, a connecting rod, and a rotary motion hydraulic drive mechanism, one end of the crank is connected to the rotary motion hydraulic drive mechanism, a crank block is fixed on the other end of the crank, both ends of the crank block are respectively connected to the connecting rod, the connecting rod is respectively connected to the left wheel block and the right wheel block, and the left wheel block and the right wheel block are both fixed on the wheel block rotating shaft;

[0010] The bottom of the sliding bearing is connected to the other end of the rotary motion hydraulic drive mechanism, and the slidable bearing is connected to the horizontal motion hydraulic drive mechanism and is driven by the horizontal motion hydraulic drive mechanism to slide horizontally on the track.

[0011] Preferably, the horizontal movement hydraulic drive mechanism comprises a hydraulic cylinder and a hydraulic push rod, the hydraulic cylinder is fixed on the base frame, and the hydraulic push rod is connected to the side of the slidable bearing.

[0012] Preferably, the hydraulic push rod is connected to the slidable bearing in a hinged manner.

[0013] Preferably, a first slideway is provided on a side surface of the track, and the slidable bearing is slidably fixed on the first slideway.

[0014] Preferably, a second slideway is provided on the base frame, and the slidable bearing is slidably fixed on the second slideway.

[0015] Preferably, one of the connection angles between the crank and the crankshaft is greater than or equal to a straight angle, and the other is less than or equal to a straight angle.

[0016] Compared with the prior art, the compound sliding car stopper for mining with adjustable stopping distance provided by the present invention is suitable for occasions where metal and non-metal mine rail transportation needs to stop cars, and can be extended to general occasions where other rail transportation needs to stop vehicles with different wheelbases at the same time. On the one hand, it can achieve precise car stopping, and on the other hand, it can achieve stepless adjustment of the stopping distance, thereby being able to adapt to the stopping and releasing functions of vehicles with different wheelbases at the same time. In addition, efficient linkage of the mechanism is achieved through the hydraulic system and the crank-connecting rod mechanism, which is convenient for automation and reduces personnel costs, and has high adaptability, functionality and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic structural diagram of a compound sliding car stopper for mining with adjustable car stopping distance provided in Example 1 of the present invention.

[0019] Figure 2 A schematic structural diagram of a wheel stop linkage mechanism in a compound sliding stopper for mining with adjustable stop distance provided in a first embodiment of the present invention.

[0020] Figure 3 A schematic structural diagram of a compound sliding car stopper for mining with adjustable car stopping distance in a car stopping state provided in an embodiment of the present invention.

[0021] Figure 4 A schematic diagram of the normal operating structure of a crank-connecting rod mechanism in a compound sliding car arrester for mining with adjustable car arresting distance provided by an embodiment of the present invention.

[0022] Figure 5 A schematic diagram of the abnormal operation structure of a crank-connecting rod mechanism in a compound sliding car stopper for mining with adjustable car stopping distance provided in an embodiment of the present invention.

[0023] In the figure:

[0024] 1. Underframe, 2. Wheel block linkage mechanism, 3. Sliding bearing, 4. Hydraulic drive system, 5. Front wheel block mechanism, 6. Rear wheel block mechanism, 7. Horizontal displacement hydraulic drive mechanism, 8. Rotary motion hydraulic drive mechanism, 9. Connecting rod, 10. Crank, 11. Wheel block shaft, 12. Track, 13. Rail vehicle. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0026] like Figure 1-3 As shown, the invention provides a compound sliding car blocker for mining with adjustable car blocking distance, comprising a chassis 1, a track 12, and a wheel block linkage mechanism 2, wherein the track 12 and the wheel block linkage mechanism 2 are both fixed on the chassis 1; the wheel block linkage mechanism 2 comprises a front wheel block mechanism 5, a rear wheel block mechanism 6, a wheel block rotating shaft, a slidable bearing 3 and a hydraulic drive system 4; the hydraulic drive system 4 comprises a horizontal movement hydraulic drive mechanism and a rotational movement hydraulic drive mechanism 8; the front wheel block mechanism 5 and the rear wheel block mechanism 6 both comprise a left wheel block, a right wheel block, a crank 10, a connecting rod 9, a rotating The hydraulic drive mechanism 8 is provided with a crank 10, one end of which is connected to the rotary hydraulic drive mechanism 8, and a crank block is fixed on the other end of the crank 10. The two ends of the crank block are respectively connected to the connecting rod 9, and the connecting rod 9 is respectively connected to the left wheel block and the right wheel block, and the left wheel block and the right wheel block are both fixed on the wheel block rotating shaft; the bottom of the sliding bearing is connected to the other end of the rotary hydraulic drive mechanism 8, and the slidable bearing 3 is connected to the horizontal movement hydraulic drive mechanism, and is driven by the horizontal movement hydraulic drive mechanism to slide horizontally on the track 12. The horizontal movement hydraulic drive mechanism includes a hydraulic cylinder and a hydraulic push rod, the hydraulic cylinder is fixed on the chassis 1, and the hydraulic push rod is connected to the side of the slidable bearing 3. The connection mode of the hydraulic push rod and the slidable bearing 3 is hinged. A first slideway is provided on the side of the track 12, and the slidable bearing 3 is slidably fixed on the first slideway. A second slideway is provided on the chassis 1, and the slidable bearing 3 is slidably fixed on the second slideway. One of the connection angles between the crank 10 and the crankshaft is greater than or equal to a straight angle, and the other is less than or equal to a straight angle.

[0027] Take the example of a rail vehicle 13 entering a compound sliding car blocker with adjustable car blocking distance from the rear wheel block for further explanation. The compound sliding car blocker with adjustable car blocking distance for mines is installed in the middle of the track 12 through the base frame 1 where precise car blocking is required. The bottom of the track 12 is provided with anchor bolt holes, which can be fixed to the foundation through bolts to transfer vertical and horizontal car blocking loads to the foundation. A short track 12 is installed on the base frame 1, which is connected to the outer track 12.

[0028] When a rail vehicle 13 with a wheelbase of A runs to the car blocker, the system can judge the need to block the vehicle in advance through signals before arriving. First, the front wheel block mechanism 5 is closed, and the rear wheel block mechanism 6 is opened. The rail vehicle 13 enters the car blocker from the rear wheel block mechanism 6. Since the front wheel block mechanism 5 is in the car blocking state, the front wheel stops when it encounters the front wheel block mechanism 5, and then the rear wheel block mechanism 6 is closed, and the rail vehicle 13 is in the precise car blocking state. When the subsequent work such as disassembling the vehicle is completed and the vehicle needs to be released, the front wheel block mechanism 5 is opened, the car blocker is in the car releasing state, and the rail vehicle 13 with a wheelbase of A can leave from the front wheel block mechanism 5.

[0029] When another rail vehicle 13 with wheelbase B (B<A) needs to be stopped, the system sends a signal to the stopper in advance. When the stopper receives the instruction, the horizontal displacement hydraulic drive mechanism 7 is activated, driving two groups (a total of 4) of slidable bearings 3, wheel blocks and wheel block shafts 11 to move horizontally inward at the same time. Since the crank 10 and connecting rod 9 are hinged at the bottom of the wheel block, and the rotary motion hydraulic drive mechanism 8 is hinged at the bottom of the slidable bearing 3, the crank 10, connecting rod 9, wheel block and rotary motion hydraulic drive mechanism 8 move inward at the same time, and stop the horizontal movement when reaching the stopping distance of the rail vehicle 13 with wheelbase B, that is, the adjustable stopping distance function is completed. After that, the front wheel block is closed, and the rear wheel block is opened. The vehicle with wheelbase B enters the stopper from the rear wheel block, and the front wheel encounters the closed front wheel block mechanism 5 and stops, and then the rear wheel block mechanism 6 is closed, and the vehicle with wheelbase B completes precise stopping. When the subsequent work such as disassembling the vehicle is completed and the vehicle needs to be released, the front wheel blocking mechanism 5 is opened, the vehicle blocker is in the vehicle release state, and the rail vehicle 13 with a wheelbase B can leave from the front wheel blocking mechanism 5.

[0030] When the blocking and releasing functions of the rail vehicle with wheelbase B (B<A) are completed first, and then the blocking and releasing functions of the rail vehicle 13 with wheelbase A are entered, the horizontal action of the mechanism is opposite to the above action, that is, the front and rear wheel chocks are first adjusted to the blocking state of wheelbase B, and then the front and rear wheel chocks are enlarged to the blocking state of wheelbase A through the horizontal action of the horizontal hydraulic drive mechanism.

[0031] In addition, if Figure 4-5 As shown, the calculation of the initial conditions required for the normal operation of the crank 10 connecting rod 9 mechanism involved is as follows: From the operating principle of the present device, it can be seen that the same set of wheel chocks that are linked must simultaneously rotate inwards or outwards around their respective rotation axes to achieve the function of blocking or releasing the vehicle. On the one hand, from the operating principle of the crank 10 connecting rod 9 mechanism, it can be seen that if the drive is applied to the connecting rod 9, then when its transmission angle is zero, the crank 10 connecting rod 9 mechanism itself has a dead point. Therefore, in order to effectively avoid this problem, this patent applies the drive to the crank 10. On the other hand, in order to facilitate the crank 10 connecting rod 9 mechanism to achieve the same set of wheel chocks being able to simultaneously rotate inwards or outwards to achieve the function of blocking or releasing the vehicle, Figure 1 It can be seen that the driving force of the crank 10 on the connecting rod must be opposite, that is, the driving forces F1 and F2 must be directed to the inside or outside of the mechanism at the same time, so that the torques formed by the driving forces F1 and F2 on their respective wheel blocks are opposite. At this time, at the upper part of the crank 10 connecting rod 9, the angles α1 and α2 formed by the crank 10 and the two connecting rods 9 are one greater than or equal to the straight angle (180°) and the other less than or equal to the straight angle.

[0032] If the angles α1 and α2 formed by the crank 10 and the two connecting rods 9 at the upper part of the crank 10 and the connecting rod 9 do not satisfy the condition that one is greater than or equal to the straight angle and the other is less than or equal to the straight angle, take one of the cases as an example to illustrate, when a hydraulic driving force is also applied to the crank 10, at this time, α1 and α2 are both greater than the straight angle, and the driving forces F1 and F2 formed by the crank 10 on the connecting rod 9 are in the same direction, which will cause the torques formed by the driving forces F1 and F2 on their respective wheel blocks to be in the same direction, so that the same set of wheel blocks run in the same direction, which obviously cannot meet the functional requirements of the device. At the same time, since there is a track 12 on the inner side of the wheel block, the wheel block running inward cannot move due to the limitation of the track 12, forming a self-locking. For another case, when the angles α1 and α2 formed by the crank 10 and the two connecting rods 9 at the upper part of the crank 10 and the connecting rod 9 are both less than the straight angle, the principle is the same as above, and the normal operation of the mechanism cannot be satisfied, and self-locking occurs.

[0033] Through the above analysis, the necessary and sufficient conditions for the normal movement of the device are: at the upper part of the crank 10 and the connecting rod 9, the angles α1 and α2 formed by the crank 10 and the two connecting rods 9 are one greater than or equal to the straight angle, and the other less than or equal to the straight angle.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A compound sliding car stopper for mining with adjustable car stop distance, characterized in that: It includes a chassis, a track, and a wheel block linkage mechanism, wherein the track and the wheel block linkage mechanism are both fixed on the chassis; The wheel block linkage mechanism includes a front wheel block mechanism, a rear wheel block mechanism, a wheel block rotating shaft, a slidable bearing and a hydraulic drive system; The hydraulic drive system includes a horizontal movement hydraulic drive mechanism and a rotary movement hydraulic drive mechanism; The front wheel block mechanism and the rear wheel block mechanism both include a left wheel block, a right wheel block, a crank, a connecting rod, and a rotary motion hydraulic drive mechanism, one end of the crank is connected to the rotary motion hydraulic drive mechanism, a crank block is fixed on the other end of the crank, both ends of the crank block are respectively connected to the connecting rod, the connecting rod is respectively connected to the left wheel block and the right wheel block, and the left wheel block and the right wheel block are both fixed on the wheel block rotating shaft; The bottom of the sliding bearing is connected to the other end of the rotary motion hydraulic drive mechanism, and the slidable bearing is connected to the horizontal motion hydraulic drive mechanism and is driven by the horizontal motion hydraulic drive mechanism to slide horizontally on the track; One of the connection angles between the crank and the connecting rod is greater than or equal to a straight angle, and the other is less than or equal to a straight angle.

2. The compound sliding car stopper for mining with adjustable car stop distance according to claim 1 is characterized in that: The horizontal movement hydraulic drive mechanism comprises a hydraulic cylinder and a hydraulic push rod, wherein the hydraulic cylinder is fixed on the base frame, and the hydraulic push rod is connected to the side of the slidable bearing.

3. The compound sliding car stopper for mining with adjustable car stop distance according to claim 2 is characterized in that: The hydraulic push rod is connected to the slidable bearing in a hinged manner.

4. The compound sliding car stopper for mining with adjustable car stop distance according to claim 3 is characterized in that: A first slideway is arranged on the side of the track, and the slidable bearing is slidably fixed on the first slideway.

5. The compound sliding car stopper for mining with adjustable car stop distance according to claim 3 is characterized in that: A second slideway is arranged on the base frame, and the slidable bearing is slidably fixed on the second slideway.

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