Miniature electric push rod type automatic car arrester for mine cage

Abstract

The utility model discloses a miniature electric push rod type automatic car arrester for a mine cage, relates to the technical field of cage car arresters, and solves the problems that in the prior art, manual operation is adopted for a long time, the mine car loading and unloading efficiency is low, and potential safety hazards exist. Comprising a cage, an electric push rod, a connecting rod, a stopping claw and an electric control system, a track is fixedly connected to the bottom of the cage, a mine car is slidably connected to the track, a push rod motor is fixedly connected into a cavity in the bottom of the cage, the electric push rod is slidably connected into the cavity in the bottom of the cage, and the push rod motor drives the electric push rod to slide. The electric push rod is connected with a blocking claw through a connecting rod, and the blocking claw is rotationally connected to the bottom of the cage. The push rod motor is connected with an electric control system, the electric control system is arranged in an electric control box, and the electric control box is installed on the side wall of the cage. The device has the beneficial effects that the blocking claws are electrically controlled, so that the system safety and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cage car stoppers, in particular to a mine cage micro electric push rod type automatic car stopper. Background Art

[0002] In mining operations, the main shaft is a crucial production hoisting shaft, where the cage and skip are hoisted in a mutually balanced manner. The cage is one of the primary hoisting equipment in a mine, primarily used for hoisting mine cars. To ensure safety during hoisting, a car arrester must be installed inside the cage to prevent the car from escaping. Each cage is equipped with two car arresters, which are used whenever the cage hoists a car, providing backup and enhancing safety.

[0003] Traditional cage car stoppers are manually operated, requiring manual activation and deactivation of the stoppers when the mine car is lifted or lowered. However, in practice, top-bar stoppers are more commonly used when lifting mine cars due to their ease of use. Bottom-wheel stoppers, however, are located close to the mine car wheels and are difficult to operate due to the cramped cage space. Furthermore, operating the bottom-wheel stoppers is time-consuming, impacting lifting efficiency. This leads some operators to only use the top-bar stoppers and not the bottom-wheel stoppers, resulting in the mine car being loosely secured in the cage and posing a safety hazard during lifting.

[0004] In order to improve the working efficiency of the car stopper, the manual car stopper is generally converted into an automatic car stopper. The traditional automatic car stopper control methods mainly include hydraulic control, pneumatic control and other methods, but its structure is complex and requires hydraulic stations, air tanks, actuators, pipelines and other supporting facilities. It is generally used on the rail car stopper at the wellhead horse head gate. The space inside the cage is narrow and it is impossible to install hydraulic stations and other supporting facilities. Therefore, the car stopper in the cage has been manually operated for a long time, which limits the working efficiency of the cage when loading and unloading mine cars, and there are also safety hazards when the cage is running.

[0005] Therefore, the utility model proposes a mine cage micro electric push rod type automatic car stopper to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a mine cage micro electric push rod type automatic car stopper, which is used to solve the problems of long-term manual operation, low efficiency in loading and unloading mine cars, and potential safety hazards in the prior art.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A micro electric push rod type automatic car stopper for a mine cage, comprising a cage, an electric push rod, a connecting rod, a blocking claw and an electronic control system; a rail is fixedly connected to the bottom of the cage, a mine car is slidably connected to the rail, a push rod motor is fixedly connected to the cavity at the bottom of the cage, an electric push rod is slidably connected to the cavity at the bottom of the cage, the push rod motor drives the electric push rod to slide, the electric push rod is connected to the blocking claw through a connecting rod, and the blocking claw is rotatably connected to the bottom of the cage; the push rod motor is connected to the electronic control system, the electronic control system is arranged in an electronic control box, and the electronic control box is installed on the side wall of the cage.

[0009] By adopting the above technical solution, the working efficiency of the cage when loading and unloading the mine car can be improved, and the safety of the cage during operation is improved.

[0010] Furthermore, the electric control system includes a 12V lithium battery and an induction switch. The induction switch and the push rod motor are connected in series between two output terminals of the 12V lithium battery. The induction switch is controlled by an induction magnet.

[0011] By adopting the above technical solution, the automatic blocking claw controlled by the induction switch improves system safety and production efficiency.

[0012] Furthermore, an adjustable overload protection device is connected in series between the two output terminals of the 12V lithium battery, and the two output terminals of the induction switch and the push rod motor are connected in parallel with the adjustable overload protection device.

[0013] By adopting the above technical solution, it is possible to avoid the blocking claw being stuck by debris, causing damage to structural parts or burning of the motor. The overload protection device can reasonably set the overload protection action current according to the actual on-site usage. When the actual working current exceeds the set value and meets the delay conditions, it can automatically trip for protection to avoid causing greater losses.

[0014] Furthermore, a test button and a power display module are connected in series between the two output terminals of the 12V lithium battery, and the two output terminals of the induction switch and the push rod motor are connected in parallel with the test button and the power display module.

[0015] By adopting the above technical solution, the system power can be intuitively displayed through the power display module, and the battery can be replaced in time when it needs to be replaced to avoid the occurrence of insufficient power, and the battery can be discovered and replaced in time.

[0016] Furthermore, the induction magnet is installed on the upper end of the car block bar, the induction magnet corresponds to the induction switch, and the car block bar is installed on the cage door of the tank cage.

[0017] By adopting the above technical solution, the opening and closing state of the blocking claw can be controlled by the position state of the induction magnet on the blocking bar, and the movement of the blocking claw can be controlled by simply opening and closing the cage door.

[0018] Furthermore, the lower end of the car stop bar is connected to an L-shaped baffle, and the end of the L-shaped baffle corresponding to the mine car is connected to a gasket.

[0019] Furthermore, the number of the blocking claws is 4, which are respectively located at the four corners of the cage. The distance between the four blocking claws is the same as the wheel track of the mine wheel, and two blocking claws are laterally connected by a cross bar.

[0020] By adopting the above technical solution, the opening and closing of two sets of blocking claws can be completed in one operation, which saves time and improves work efficiency.

[0021] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The utility model only needs one operation to complete the switching of two sets of limit switches, which saves time and improves work efficiency. It also solves the problem of operators not using the bottom blocking claws, improves the safety of cage operation, and eliminates production safety accidents. The bottom of the cage is an automatic blocking claw driven by an electric push rod and controlled by an induction switch, which improves system safety and production efficiency.

[0023] 2. The utility model can improve the working efficiency of the transportation system.

[0024] In the past, loading and unloading a mine car required operating two different pawls separately, and the operation of the bottom wheel pawl was cumbersome and time-consuming. Now, simply operating the vehicle bar can open and close the bottom wheel pawl at the same time, saving time and improving labor efficiency.

[0025] According to on-site measurements, it used to take 15 seconds to open and close the two blocking claws, but now it only takes 5 seconds. Based on the operating speed of the hoisting system and actual production conditions, the main shaft can hoist about 38 mine cars per hour. Excluding equipment maintenance and waiting time, the hoisting time can reach 18 hours per day. Assuming each mine car is loaded with 1102.5kg of ore:

[0026] Time saved every day: (15-5)*38*18 / 3600=1.9h,

[0027] Time saved per year: 1.9*365=694h,

[0028] 694*38=26372 more mine cars can be lifted each year.

[0029] The annual ore lifting capacity is 1102.5*26372 / 1000=29075t.

[0030] This shows that it can produce huge safety and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the working structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the partial working structure of the utility model Figure 1 ;

[0033] Figure 3 This is a schematic diagram of the working method of the local structure of the utility model Figure 2 ;

[0034] Figure 4 This is a circuit diagram of the utility model;

[0035] In the figure: 1. Cage; 2. Push rod motor; 3. Electric push rod; 4. Connecting rod; 5. Pawl; 6. Cross bar; 7. Track; 8. Electric control box; 9. 12V lithium battery; 10. Induction switch; 11. Induction magnet; 12. Adjustable overload protection device; 13. Test button; 14. Battery display module; 15. Car stop bar; 16. Cage door; 17. L-shaped baffle; 18. Gasket. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, 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 embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] In this application, terms such as "upper," "inner," "outer," and "middle" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to specific positions, or to their construction or operation in a specific position.

[0038] like Figure 1 and Figure 2As shown, a mine cage 1 micro electric push rod 3-type automatic car stopper includes a cage 1, an electric push rod 3, a connecting rod 4, a blocking claw 5 and an electronic control system. The bottom of the cage 1 is fixedly connected to a track 7, and a mine car is slidably connected to the track 7. A push rod motor 2 is fixedly connected to the bottom cavity of the cage 1, and an electric push rod 3 is slidably connected to the bottom cavity of the cage 1. The push rod motor 2 drives the electric push rod 3 to slide. The electric push rod 3 is connected to the blocking claw 5 through the connecting rod 4, and the blocking claw 5 is rotatably connected to the bottom of the cage 1. The electric push rod 3 is an SXTL type, with a push rod running speed of 60mm / s, a stroke of 60mm, and a thrust of 100N. This electric push rod 3 has a compact structure and suitable thrust. It is used as the power actuator of the entire system to drive the opening and closing of the blocking claw 5 and is installed on the bottom plate of the cage 1 without affecting the personnel in the cage 1 and the mine car. The connecting rod 4 is used to connect the electric push rod 3 and the blocking claw 5, transmit the thrust, and drive the blocking claw 5 to move. There are four pawls 5, located at the four corners of the cage 1. The distance between the four pawls 5 is the same as the track width of the mine car. Two pawls 5 are connected laterally by a crossbar 6. The crossbar 6 connects the pawls 5 on both sides of the cage 1, transmitting thrust. A single electric push rod 3 can simultaneously drive the movement of two pawls 5. The pawls 5 secure the mine car in place, preventing it from moving within the cage 1. The push rod motor 2 is connected to an electronic control system housed in an electrical control box 8 mounted on the side wall of the cage 1. This provides power to the push rod motor 2 and controls the movement of the pawls 5.

[0039] like Figure 3 and Figure 4 As shown, the electronic control system includes a 12V lithium battery 912V and an inductive switch 10. The inductive switch 10 and the push rod motor 2 are connected in series between the two output terminals of the 12V lithium battery 912V. The inductive switch 10 is controlled by an inductive magnet 11. The inductive magnet 11 is mounted on the upper end of the car block 15, corresponding to the inductive switch 10. The car block 15 is mounted on the cage door of the tank cage 1. The lower end of the car block 15 is connected to an L-shaped baffle 17L, and the end of the L-shaped baffle 17L corresponding to the mine car is connected to a gasket 18. After loading the mine car, the worker closes the cage door. When the inductive switch 10 senses that the car block 15 is closed, the electric push rod 3 extends, and the pawl 5 limits the mine car. To unload the mine car, the worker opens the cage door. The inductive switch 10 senses that the car block 15 is open, sending an action signal, causing the electric push rod 3 to retract, driving the pawl 5 to open, thus realizing the linkage between the two. When the cage door is opened or closed, the cage door drives the car block bar 15 to move, and the induction switch 10 can sense the position of the induction magnet 11 on the car block bar 15, and then the induction magnet 11 controls the induction switch 10 to close. The opening and closing state of the blocking claw 5 can be controlled by the position state of the induction magnet 11 on the car block bar 15. The movement of the blocking claw 5 can be controlled by simply opening or closing the cage door.

[0040] like Figure 4As shown, an adjustable overload protection device 12 is connected in series between the two output terminals of the 12V lithium battery 912V, and the two output terminals of the inductive switch 10 and the push rod motor 2 are connected in parallel with the adjustable overload protection device 12. This can prevent the blocking claw 5 from being stuck by debris, causing damage to the structural parts or burning of the motor. The overload protection device can reasonably set the overload protection action current based on actual on-site usage. When the actual operating current exceeds the set value and meets the delay condition, it can automatically trip for protection to avoid causing greater losses. After the inspection is completed, it can be reset and resume operation. A test button 13 and a power display module 14 are connected in series between the two output terminals of the 12V lithium battery 912V, and the two output terminals of the inductive switch 10 and the push rod motor 2 are connected in parallel with the test button 13 and the power display module 14. Therefore, equipment inspectors only need to press the test button 13 to intuitively display the system power through the power display module 14. When the battery needs to be replaced, it can be replaced in time to avoid insufficient power and enable timely detection and replacement of the battery.

[0041] The working process of this utility model is:

[0042] After loading the mine car, the worker closes the cage door. The induction switch 10 senses the closure of the cage door through the induction magnet 11 on the car stop bar 15. The electric push rod 3 extends, and the connecting rod 4 is used to connect the electric push rod 3 and the pawl 5, transmitting the thrust, driving the pawl 5 to move, and then the pawl 5 limits the mine car. At the same time, the L-shaped baffle 17L connected to the lower end of the car stop bar 15 limits the upper end of the mine car. To unload the mine car, the worker opens the cage door. The induction switch 10 senses the opening of the cage door through the induction magnet 11 on the car stop bar 15, sends an action signal, and the electric push rod 3 contracts, driving the pawl 5 to open, releasing the limit on the mine car.

Claims

1. A mine cage micro electric push rod type automatic car stopper, comprising a cage (1), an electric push rod (3), a connecting rod (4), a blocking claw (5) and an electronic control system, characterized in that: The bottom of the cage (1) is fixedly connected to a rail (7), and a mine car is slidably connected to the rail (7). A push rod motor (2) is fixedly connected to the cavity at the bottom of the cage (1), and an electric push rod (3) is slidably connected to the cavity at the bottom of the cage (1). The push rod motor (2) drives the electric push rod (3) to slide, and the electric push rod (3) is connected to a blocking claw (5) through a connecting rod (4). The blocking claw (5) is rotatably connected to the bottom of the cage (1); the push rod motor (2) is connected to an electric control system, and the electric control system is arranged in an electric control box (8). The electric control box (8) is installed on the side wall of the cage (1).

2. A mine cage miniature electric push rod type automatic car stopper according to claim 1, characterized in that: The electric control system comprises a 12V lithium battery (9) and an inductive switch (10), wherein the inductive switch (10) and the push rod motor (2) are connected in series between two output terminals of the 12V lithium battery (9), and the inductive switch (10) is controlled by an inductive magnet (11).

3. A mine cage miniature electric push rod type automatic car stopper according to claim 2, characterized in that: An adjustable overload protection device (12) is connected in series between the two output terminals of the 12V lithium battery (9), and the two output terminals of the induction switch (10) and the push rod motor (2) are connected in parallel with the adjustable overload protection device (12).

4. A mine cage miniature electric push rod type automatic car stopper according to claim 3, characterized in that: A test button (13) and a power display module (14) are connected in series between the two output terminals of the 12V lithium battery (9), and the two output terminals of the induction switch (10) and the push rod motor (2) are connected in parallel with the test button (13) and the power display module (14).

5. A mine cage miniature electric push rod type automatic car stopper according to claim 4, characterized in that: The induction magnet (11) is installed on the upper end of the car stop bar (15), the induction magnet (11) corresponds to the induction switch (10), and the car stop bar (15) is installed on the cage door (16) of the tank cage (1).

6. A mine cage miniature electric push rod type automatic car stopper according to claim 5, characterized in that: The lower end of the vehicle blocking bar (15) is connected to an L-shaped baffle (17), and one end of the L-shaped baffle (17) corresponding to the mine car is connected to a gasket (18).

7. The mine cage micro electric push rod type automatic car stopper according to claim 1 is characterized in that: The number of the blocking claws (5) is 4, which are respectively located at the four corners of the cage (1). The distance between the four blocking claws (5) is the same as the wheel track of the mine wheel. Two blocking claws (5) are connected laterally by a cross bar (6).

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