Train train position detection device for car dumper

Abstract

The invention discloses a train carriage position detection device for a car dumper, and relates to the technical field of position detection.The train carriage position detection device comprises a car dumper body and a train carriage, brake hand wheels are arranged at the two ends of the train carriage, a detection mechanism is arranged on the car dumper body, and the detection mechanism comprises a rear end cover fixedly installed on the car dumper body; a front end cover is fixed in front of the rear end cover, a main shaft is arranged between the rear end cover and the front end cover, one end of the main shaft is connected with an encoder, the other end of the main shaft is connected with a detection rod, and the detection mechanism is connected with a driving mechanism. The train wagon position detection device is used for the tippler. And through cooperative use of the detection mechanism and the driving mechanism, the position of the train can be detected, and collision accidents are effectively prevented. Compared with a detection mode of a photoelectric switch, the device has the advantages of being accurate in action and free of influence of dust concentration, and accuracy and reliability of train carriage position detection are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of position detection, and specifically to a train car position detection device used in a car dumper. Background Art

[0002] A car dumper is a large mechanical device for tipping open-top train cars, usually composed of end rings, bottom beams, side beams, rear beams, supporting wheels, funnels, etc. Before tipping, the train car needs to be parked in the correct position, and the entire train car should be located inside the car dumper. The outermost structure of the train car is the brake handwheel. If the positioning of the train car is deviated, the brake handwheel will be located outside the car dumper, and the brake handwheel will collide with the civil engineering foundation during the tipping process, thus damaging the train car.

[0003] The position detection of train cars usually uses photoelectric switches. One set of photoelectric switches is arranged at each of the entrance and exit positions of the car dumper. When the position of the train car is correct, the light emitted by the emitting end of the photoelectric switch can be received by the receiving end, and at this time, the photoelectric switch emits a conduction signal. If the position of the train car is deviated, at this time, the light emitted by the emitting end of the photoelectric switch will be blocked by the train car, and the photoelectric switch cannot conduct. This detection method can meet the requirements of most working conditions.

[0004] Some train cars are loaded with coal inside. When the car dumper is tipping, dust is inevitably generated. When the dust concentration at the photoelectric switch part is relatively high, the light emitted by the emitting end is blocked by the dust, and the receiving end cannot receive the light. At this time, even if the position of the train car is correct, the photoelectric switch cannot emit a conduction signal, thus affecting the normal operation of the car dumper. Summary of the Invention

[0005] The purpose of the present invention is to provide a train car position detection device used in a car dumper to solve the problems in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A train car position detection device used in a car dumper, including a car dumper body and a train car. Brake handwheels are provided at both ends of the train car, and a detection mechanism is provided on the car dumper body. The detection mechanism includes a rear end cover fixedly installed on the car dumper body. A front end cover is fixed in front of the rear end cover. A main shaft is installed between the rear end cover and the front end cover. One end of the main shaft is connected to an encoder, and the other end of the main shaft is connected to a detection rod. A driving mechanism is connected to the detection mechanism.

[0007] Preferably, a stud is provided between the front end cover and the rear end cover, a coupling is provided between the encoder and the coupling, and bearings are provided at the middle positions of both the front end cover and the rear end cover.

[0008] Preferably, a bottom beam is provided at the bottom of the car dumper body, a rear beam is provided on one side of the car dumper body, a side beam is provided on the other side of the car dumper body, and pressing beams are provided on both the rear beam and the side beam.

[0009] Preferably, the driving mechanism includes steel plate seats fixedly installed on the front end cover and the rear end cover, and a driving connecting rod fixedly installed on the main shaft. A rotating seat is fixedly installed on the steel plate seat, an oil cylinder is rotatably installed on the rotating seat, and the output end of the oil cylinder is rotatably installed on the driving connecting rod. A upper bearing shell is fixedly installed at the lower end of the driving connecting rod, a lower bearing shell is arranged below the upper bearing shell, and key grooves are provided on both the upper bearing shell and the main shaft.

[0010] Preferably, installation grooves are provided on both the front end cover and the rear end cover, the bearings are respectively installed on the front end cover and the rear end cover through the installation grooves, and the main shaft is rotatably installed between the front end cover and the rear end cover through the bearings.

[0011] Preferably, screw holes are provided at the four corners of the front end cover and the rear end cover, both ends of the stud are respectively connected to the front end cover and the rear end cover through the screw holes, an installation bracket is provided on the side wall of the rear end cover, and the encoder is fixedly installed on one side of the rear end cover through the installation bracket.

[0012] Preferably, a bolt is provided between the upper bearing shell and the lower bearing shell, the upper bearing shell and the lower bearing shell are fixed together through the bolt, a key is provided in the key groove, and the main shaft is restricted between the upper bearing shell and the lower bearing shell through the key.

[0013] Preferably, a bolt is provided between the upper bearing shell and the lower bearing shell, the upper bearing shell and the lower bearing shell are fixed together through the bolt, a key is provided in the key groove, and the main shaft is restricted between the upper bearing shell and the lower bearing shell through the key.

[0014] Preferably, movable shafts are provided on both the rotating seat and the driving connecting rod. One end of the oil cylinder is rotatably installed on the rotating seat through the movable shaft, and the other end of the oil cylinder is rotatably installed on the driving connecting rod through the movable shaft.

[0015] Preferably, the driving connecting rod is fixed at the middle position of the main shaft through the upper bearing shell and the lower bearing shell, and the detection rod is rotatably installed in the car dumper body through the main shaft.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this application, after the train car is stably parked, the hydraulic station provides power, and the output end of the oil cylinder extends accordingly. This output end pushes the upper end of the driving connecting rod forward, causing the driving connecting rod to rotate with the main shaft as the rotation center. Since the driving connecting rod is fixedly connected to the main shaft, the rotation of the connecting rod will drive the main shaft to rotate together. The rotation of the main shaft will in turn cause the detection rod to rotate, thereby realizing the control of the detection mechanism.

[0018] 2. During the rotation of the detection rod in this application, the main shaft can drive the input end of the encoder to rotate, thereby achieving accurate measurement of the rotation angle of the detection rod. When the detection rod rotates to a predetermined angle, the hydraulic station will control the output end of the oil cylinder to contract, causing the main shaft to guide the detection rod to rotate in the reverse direction until it returns to the initial position. If the position of the railway wagon is correct, the outermost brake handwheel will be inside the dumper. At this time, the detection rod will not interfere with the brake handwheel during the forward and reverse rotations. If the detection rod can complete the forward and reverse rotations smoothly within the specified time, it is determined that the position of the railway wagon is correct. Compared with the photoelectric switch detection method, this detection method has higher action accuracy and is not affected by the dust concentration, significantly improving the accuracy and reliability of the railway wagon position detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view of the overall structure of the present invention;

[0020] Figure 2 is the schematic diagram of the partial structure of the present invention;

[0021] Figure 3 is the side view of the overall structure of the present invention;

[0022] Figure 4 is the schematic diagram of the detection mechanism of the present invention;

[0023] Figure 5 is the schematic diagram of the driving mechanism of the present invention;

[0024] Figure 6 is the schematic diagram of the steel plate seat structure of the present invention;

[0025] Figure 7 is the schematic diagram of the driving connecting rod structure of the present invention;

[0026] Figure 8 is the schematic diagram of the main shaft structure of the present invention.

[0027] Reference numerals in the drawings: 1, dumper body; 101, rear beam; 102, side beam; 2, brake handwheel; 3, railway wagon; 4, car pressing beam; 5, bottom beam; 6, detection mechanism; 601, encoder; 602, coupling; 603, stud; 604, rear end cover; 605, main shaft; 606, bearing; 607, front end cover; 608, detection rod; 7, driving mechanism; 701, oil cylinder; 702, driving connecting rod; 703, upper bearing shell; 704, lower bearing shell; 705, keyway; 706, steel plate seat; 707, rotating seat. DETAILED DESCRIPTION OF THE INVENTION

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] As Figure 1 , Figure 2 and Figure 3 shown, the present invention provides a technical solution for a position detection device of a railway car body 3 used in a car dumper, including a car dumper body 1 and a railway car body 3. Braking handwheels 2 are provided at both ends of the railway car body 3. A detection mechanism 6 is provided on the car dumper body 1. A driving mechanism 7 is connected to the detection mechanism 6. A bottom beam 5 is provided at the bottom of the car dumper body 1. A rear beam 101 is provided on one side of the car dumper body 1. A side beam 102 is provided on the other side of the car dumper body 1. Pressing beams 4 are provided on both the rear beam 101 and the side beam 102. By the combined use of the detection mechanism 6 and the driving mechanism 7, the position of the railway car body 3 can be detected, effectively preventing the occurrence of collision accidents. Compared with the detection method of an optoelectronic switch, it has the characteristics of accurate action and being unaffected by the dust concentration, greatly improving the accuracy and reliability of the position detection of the railway car body 3.

[0030] As Figure 2 , Figure 3 and Figure 4 shown, the detection mechanism 6 includes a rear end cover 604 fixedly installed on the car dumper body 1. A front end cover 607 is fixed in front of the rear end cover 604. A main shaft 605 is installed between the rear end cover 604 and the front end cover 607. One end of the main shaft 605 is connected to an encoder 601, and the other end of the main shaft 605 is connected to a detection rod 608. A stud 603 is provided between the front end cover 607 and the rear end cover 604. A coupling 602 is provided between the encoder 601 and the coupling 602. Bearings 606 are provided at the middle positions of both the front end cover 607 and the rear end cover 604. Installation grooves are formed on both the front end cover 607 and the rear end cover 604. The bearings 606 are respectively installed on the front end cover 607 and the rear end cover 604 through the installation grooves. The main shaft 605 is rotatably installed between the front end cover 607 and the rear end cover 604 through the bearings 606. Screw holes are provided at the four corner positions of both the front end cover 607 and the rear end cover 604. Both ends of the stud 603 are connected to the front end cover 607 and the rear end cover 604 respectively through the screw holes.

[0031] Specifically, during the rotation of the detection rod 608, the main shaft 605 can effectively drive the input end of the encoder 601 to rotate. In this way, the encoder 601 can measure and record the rotation angle of the detection rod 608. When the cumulative rotation angle of the detection rod 608 reaches 60°, the hydraulic station will issue an instruction to control the output end of the oil cylinder 701 to contract. Subsequently, the main shaft 605 plays a role again, guiding the detection rod 608 to rotate in the reverse direction until it returns to the starting position. During this process, if the position of the railcar 3 is accurate, then the outermost brake wheel 2 of the railcar 3 will be located inside the dumper. In this way, during the forward and reverse rotation of the detection rod 608, there will be no interference with the brake wheel 2. As long as the detection rod 608 can smoothly complete its forward and reverse rotation tasks within the specified time, it is determined that the position of the railcar 3 is correct. Compared with the traditional photoelectric switch detection method, this detection method using the encoder 601 has higher action accuracy and is not affected by the dust concentration in the surrounding environment. Therefore, this detection method significantly improves the accuracy and reliability of the position detection of the railcar 3.

[0032] As Figure 5 , Figure 6 , Figure 7 and Figure 8 shown, the drive mechanism 7 includes a steel plate seat 706 fixedly installed on the front end cover 607 and the rear end cover 604, and a drive link 702 fixedly installed on the main shaft 605. A rotating seat 707 is fixedly installed on the steel plate seat 706. An oil cylinder 701 is rotatably installed on the rotating seat 707, and the output end of the oil cylinder 701 is rotatably installed on the drive link 702. A upper bearing shell 703 is fixedly installed at the lower end of the drive link 702. A lower bearing shell 704 is provided below the upper bearing shell 703. Key grooves 705 are formed on both the upper bearing shell 703 and the main shaft 605. A bolt is provided between the upper bearing shell 703 and the lower bearing shell 704. The upper bearing shell 703 and the lower bearing shell 704 are fixed together by bolts. A key is provided in the key groove 705. The main shaft 605 is restricted between the upper bearing shell 703 and the lower bearing shell 704 by the key. Moving shafts are provided on both the rotating seat 707 and the drive link 702. One end of the oil cylinder 701 is rotatably installed on the rotating seat 707 through the moving shaft, and the other end of the oil cylinder 701 is rotatably installed on the drive link 702 through the moving shaft.

[0033] Specifically, after the railway car 3 has come to a complete stop, under the driving action of the hydraulic station, the output end of the oil cylinder 701 begins to extend. As the output end of the oil cylinder 701 extends, it exerts a force on the upper end of the driving link 702, pushing it forward. Since the driving link 702 is fixed to the main shaft 605, when the driving link 702 rotates around the main shaft 605, it will drive the main shaft 605 to rotate accordingly. Once the main shaft 605 starts to rotate, it will further drive the detection rod 608 to rotate. The rotation of the detection rod 608 is a crucial step in controlling the operation of the detection mechanism 6, thus ensuring the smooth progress of the entire detection process.

[0034] Working principle: During the use, the detection mechanism 6 is arranged at both ends of the car dumper body 1. After the railway wagon 3 stops stably, driven by the hydraulic station, the output end of the oil cylinder 701 extends. After the output end of the oil cylinder 701 extends, it will push the upper end of the driving connecting rod 702 forward, causing the driving connecting rod 702 to rotate around the main shaft 605. Also, because the driving connecting rod 702 is fixed on the main shaft 605, after the driving connecting rod 702 rotates, it will drive the main shaft 605 to rotate. After the main shaft 605 rotates, it will drive the detection rod 608 to rotate, thereby controlling the operation of the detection mechanism 6. During the rotation of the detection rod 608, the main shaft 605 can drive the input end of the encoder 601 to rotate, so as to measure the rotation angle of the detection rod 608 by using the encoder 601. When the rotation angle of the detection rod 608 reaches 60°, the hydraulic station controls the output end of the oil cylinder 701 to retract, and the main shaft 605 drives the detection rod 608 to rotate in the reverse direction and return to the initial position. If the position of the railway wagon 3 is correct, the brake wheel 2 on the outermost side of the railway wagon 3 is located inside the car dumper. During the forward and reverse rotation of the detection rod 608, it will not interfere with the brake wheel 2. Within a certain period of time, the detection rod 608 can smoothly complete the forward and reverse rotation processes. If the positioning of the railway wagon 3 is deviated, the outermost brake wheel 2 is located outside the car dumper. During the forward rotation of the detection rod 608, it will interfere with the brake wheel 2, and the rotation angle cannot reach 60°. After exceeding a certain period of time, the system will issue an alarm, indicating that the positioning of the railway wagon 3 is incorrect and it does not meet the tipping conditions, effectively preventing the occurrence of collision accidents. The judgment principle is: The action time for the detection rod 608 to reach the limit position from the initial position is recorded as T1, and the action time for the detection rod 608 to reach the limit position and then return to the initial position is recorded as T2; considering the instability of the speed of the oil cylinder 701 and the action error, therefore, the detection time is extended by 5 seconds. If the time for the detection rod 608 to rotate from the initial position to the limit position is less than T1 + 5 seconds, and the action time for the detection rod 608 to reach the limit position and then return to the initial position is less than T2 + 5 seconds, it indicates that the action of the detection rod 608 is normal and there is no interference with the brake wheel 2. Therefore, the position of the railway wagon 3 is correct and it meets the tipping conditions. If within the time of T1 + 5 seconds, the detection rod 608 does not rotate from the initial position to the limit position, it indicates that there is interference between the brake wheel 2 and the detection rod 608, and the positioning of the railway wagon 3 is deviated and it does not meet the tipping conditions.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A position detection device for a railroad car used in a car dumper, comprising a car dumper body (1) and a railroad car (3), wherein braking handwheels (2) are provided at both ends of the railroad car (3), and characterized in that: A detection mechanism (6) is provided on the dumper body (1). The detection mechanism (6) includes a rear end cover (604) fixedly installed on the dumper body (1). A front end cover (607) is fixed in front of the rear end cover (604). A main shaft (605) is installed between the rear end cover (604) and the front end cover (607). One end of the main shaft (605) is connected to an encoder (601), and the other end of the main shaft (605) is connected to a detection rod (608). A driving mechanism (7) is connected to the detection mechanism (6).

2. The train car position detection device used in a car dumper according to claim 1, characterized in that: A stud (603) is provided between the front end cover (607) and the rear end cover (604). A coupling (602) is provided between the encoder (601) and the coupling (602). Bearings (606) are provided at the middle positions of the front end cover (607) and the rear end cover (604).

3. The train car position detection device for a car dumper according to claim 2, characterized in that: A bottom beam (5) is provided at the bottom of the dumper body (1). A rear beam (101) is provided on one side of the dumper body (1), and a side beam (102) is provided on the other side of the dumper body (1). Pressing beams (4) are provided on both the rear beam (101) and the side beam (102).

4. The train car position detection device for a car dumper according to claim 3, characterized in that: The driving mechanism (7) includes a steel plate seat (706) fixedly installed on the front end cover (607) and the rear end cover (604), and a driving connecting rod (702) fixedly installed on the main shaft (605). A rotating seat (707) is fixedly installed on the steel plate seat (706). An oil cylinder (701) is rotatably installed on the rotating seat (707), and the output end of the oil cylinder (701) is rotatably installed on the driving connecting rod (702). A upper shaft sleeve (703) is fixedly installed at the lower end of the driving connecting rod (702). A lower shaft sleeve (704) is provided below the upper shaft sleeve (703). Key grooves (705) are provided on both the upper shaft sleeve (703) and the main shaft (605).

5. The train car position detection device used in a car dumper according to claim 4, wherein: Installation grooves are provided on both the front end cover (607) and the rear end cover (604). The bearings (606) are respectively installed on the front end cover (607) and the rear end cover (604) through the installation grooves. The main shaft (605) is rotatably installed between the front end cover (607) and the rear end cover (604) through the bearings (606).

6. The train car position detection device for a dumper according to claim 4, characterized in that: Screw holes are provided at the four corners of the front end cover (607) and the rear end cover (604). Both ends of the stud (603) are respectively connected to the front end cover (607) and the rear end cover (604) through the screw holes. An installation frame is provided on the side wall of the rear end cover (604). The encoder (601) is fixedly installed on one side of the rear end cover (604) through the installation frame.

7. The train car position detection device for a car dumper according to claim 4, characterized in that: One end of the main shaft (605) is connected to the input shaft of the encoder (601) through a coupling (602). An installation hole is provided on the detection rod (608). The detection rod (608) is installed on the other end of the main shaft (605) through the installation hole.

8. The train car position detection device for a car dumper according to claim 4, characterized in that: A bolt is provided between the upper bearing shell (703) and the lower bearing shell (704). The upper bearing shell (703) and the lower bearing shell (704) are fixed together by the bolt. A key is provided in the keyway (705). The main shaft (605) is restricted between the upper bearing shell (703) and the lower bearing shell (704) by the key.

9. The train car position detection device for a car dumper according to claim 4, characterized in that: Moving shafts are provided on both the rotating seat (707) and the driving connecting rod (702). One end of the oil cylinder (701) is rotatably mounted on the rotating seat (707) through the moving shaft, and the other end of the oil cylinder (701) is rotatably mounted on the driving connecting rod (702) through the moving shaft.

10. The train car position detection device for a car dumper according to claim 4, characterized in that: The driving connecting rod (702) is fixed to the middle position of the main shaft (605) through the upper bearing shell (703) and the lower bearing shell (704). The detection rod (608) is rotatably mounted in the dumper body (1) through the main shaft (605).

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