Bucket wheel stacker reclaimer rotation position limiter

Abstract

To provide a highly practical and conveniently operable bucket wheel stacker reclaimer rotation position limiting device. The device includes a position limiting structure 1, a position limiting structure 2, a scanning structure and a positioning block, the position limiting structure 1 includes a first rotating wheel 11 movably connected to the fixed platform of the bucket wheel stacker reclaimer, an ultrasonic sensor 1 fixedly connected to the inner wall of the first rotating wheel, and a collar fixedly connected to the fixed platform of the bucket wheel stacker reclaimer, the collar is movably fitted to the outer periphery of the rotating platform of the bucket wheel stacker reclaimer, and an electromagnet 1 is fixed on the collar. This bucket wheel stacker reclaimer rotation position limiting device adjusts the position between the ultrasonic sensor 1 and the ultrasonic sensor 2 according to the moving range of the cantilever arm, and directly controls the rotation of the cantilever arm to stop when it reaches the limit position.

Description

[Technical field]

[0001] The present invention relates to the technical field of protection equipment for bucket wheel stacker reclaimers, and more particularly to a rotation position limiting device for bucket wheel stacker reclaimers. [Background technology]

[0002] The bucket wheel stacker reclaimer is a continuous transport machine that can stack and pick up materials for large dry bulk yards, and is widely used in coal and other fields due to its high stacking and picking efficiency. When using the bucket wheel stacker reclaimer, protective measures must be taken for the cantilever arm of the bucket wheel stacker reclaimer to ensure the safety of personnel and equipment in the machine and coal yard.

[0003] The prior art discloses a position limiting device for the cantilever arm of a bucket wheel stacker reclaimer, for example, the rotary shaft of the rotary position limiting device is connected to the cantilever arm of the bucket wheel stacker reclaimer, and the rotary shaft rotates together with the cantilever arm, thereby obtaining the rotation angle of the cantilever arm, and the control motherboard of the bucket wheel stacker reclaimer analyzes whether the cantilever arm rotates within a safe range based on the rotation angle of the cantilever arm, and performs digital control on the bucket wheel stacker reclaimer based on the analysis result to protect the cantilever arm. However, since data transmission, analysis and control all require a certain amount of time, there is a certain degree of hysteresis when used, and there is a defect in that real-time performance is low. Therefore, the present application proposes a rotary position limiting device for a bucket wheel stacker reclaimer. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT INVETION The present invention aims to provide a device for limiting the rotation position of a bucket wheel stacker reclaimer, which solves the problems associated with the method of calculating the rotation angle of a cantilever arm and performing digital control of a bucket wheel stacker reclaimer based on the rotation angle of the cantilever arm, as pointed out in the background art above, which has a certain degree of hysteresis, poor real-time performance, and poor usability. [Means for solving the problem]

[0005] The present invention provides the following technical solution: A bucket wheel stacker reclaimer rotation position limiting device, comprising a position limiting structure 1, a position limiting structure 2, a scanning structure and a positioning block, the position limiting structure 1 comprises a first rotating wheel movably connected to a fixed platform of the bucket wheel stacker reclaimer, an ultrasonic sensor 1 fixedly connected to an inner wall of the first rotating wheel, and a collar fixedly connected to the fixed platform of the bucket wheel stacker reclaimer, the collar is movably fitted on the outer periphery of the rotating platform of the bucket wheel stacker reclaimer, an electromagnet 1 is fixed on the collar, and the electromagnet 1 and the first rotating wheel are magnetically attracted to each other when the electromagnet 1 is in an energized state.

[0006] The position limiting structure 2 includes a support ring fixedly connected to the top of the collar, a second rotating wheel is movably fitted onto the outer ring of the support ring, an ultrasonic sensor 2 is fixedly connected to the inside of the second rotating wheel, and an electromagnet 2 is uniformly fixed onto the support ring. When the electromagnet 2 is in an electrically conductive state, the electromagnet 2 and the second rotating wheel are magnetically attracted to each other.

[0007] The positioning block is fixedly connected to the fixed platform of the bucket wheel stacker reclaimer, and the positioning block is between ultrasonic sensor 1 and ultrasonic sensor 2. The scanning structure includes an upper scanner that connects to the top of the cantilever arm of the bucket wheel stacker reclaimer, and a lower scanner that connects to the bottom of the cantilever arm of the bucket wheel stacker reclaimer.

[0008] Preferably, a gear ring 1 is fixedly connected to the outer wall of the first rotating wheel, the position limiting structure 1 further includes a rotary motor 1 fixedly connected to a fixed platform of the bucket wheel stacker reclaimer, a gear 1 is fixedly connected to an end of an output shaft of the rotary motor 1, and the gear 1 meshes with the gear ring 1.

[0009] Preferably, a gear ring 2 is fixedly connected to the outer wall of the second rotating wheel, and the gear ring 2 is located above the gear ring 1, and the position limiting structure 2 further includes a rotary motor 2 fixedly connected to a fixed platform of the bucket wheel stacker reclaimer, and a gear 2 is fixedly connected to the end of the output shaft of the rotary motor 2, and the gear 2 meshes with the gear ring 2.

[0010] Preferably, the collar contacts the top of the first wheel, the collar being fixedly connected to a fixed platform of the bucket wheel stacker-reclaimer via a fixed bar, and the second wheel is movably connected to the top of the first wheel.

[0011] Preferably, the scanning structure further includes a rotary motor 3 and a bracket, one end of the rotary motor 3 is fixedly connected to the top of the cantilever arm of the bucket wheel stacker reclaimer, an end of the output shaft of the rotary motor 3 is fixedly connected to the bottom of the upper scanner, one end of the bracket is fixedly connected to the bottom of the cantilever arm of the bucket wheel stacker reclaimer, a round bar is movably connected to the other end of the bracket, one end of the round bar is fixedly connected to the lower scanner, a rotary motor 4 is fixedly connected to the side of the bracket away from the lower scanner, and an end of the output shaft of the rotary motor 4 is fixedly connected to the other end of the round bar.

[0012] Preferably, the support ring is above both ultrasonic sensor 1 and ultrasonic sensor 2, and the thickness of the positioning block is the same as the height of both ultrasonic sensor 1 and ultrasonic sensor 2. Effect of the Invention

[0013] Compared with the prior art, the present invention has the following advantageous effects:

[0014] This bucket wheel stacker reclaimer rotation position limiting device calculates the movement range of the cantilever arm in advance, and adjusts the position between ultrasonic sensor 1 and ultrasonic sensor 2 based on the movement range of the cantilever arm, so that when this device is used, when the cantilever arm reaches the limit position, the control system of the bucket wheel stacker reclaimer can directly control the rotation of the cantilever arm to stop it, which is highly practicable and convenient to operate.

[0015] In this bucket wheel stacker reclaimer rotation position limiting device, by installing the position limiting structure 1 and the position limiting structure 2, the positions of the ultrasonic sensor 1 and the ultrasonic sensor 2 can be rapidly adjusted as required, which increases the adaptability of the device. In addition, this device utilizes the position of the positioning block instead of the position of the cantilever arm, which increases the convenience of using the device and makes it easy to detect the rotation angle of the cantilever arm. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a schematic diagram of the structure of the present invention in use. [Diagram 2] FIG. 2 is a schematic bottom view of the structure of the present invention shown in FIG. [Diagram 3] FIG. 3 is a schematic cross-sectional view of the position limiting structure 1 and the position limiting structure 2 of the structure of the present invention. [Figure 4] FIG. 4 is an exploded schematic diagram of the structure of the present invention shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The technical solutions of the embodiments of the present invention are described below in a clear and complete manner in conjunction with the drawings of the embodiments of the present invention. Of course, the embodiments described herein are only a part of the embodiments of the present invention, and are not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without paying creative labor are the subject of protection of the present invention.

[0018] The bucket wheel stacker reclaimer rotation position limiting device of the present invention comprises a position limiting structure 1, a position limiting structure 2, a scanning structure and a positioning block 8. The position limiting structure 1 comprises a first rotating wheel 11, a collar 18 and a rotating motor 11. The first rotating wheel 11 is movably connected to the top of the fixed platform of the bucket wheel stacker reclaimer. A gear ring 1 is fixedly connected to the outer wall of the first rotating wheel 11. The rotating motor 11 is fixedly connected to the outer wall of the fixed platform of the bucket wheel stacker reclaimer. The output shaft end of the rotating motor 11 is fixedly connected to a gear 12 through a reducer. The gear 12 meshes with the gear ring 1. The rotating motor 11 is installed so that when the rotating motor 11 rotates, it can drive the gear 12 fixedly connected thereto to rotate, and the gear 12 can rotate the first rotating wheel 11 through the gear ring meshing therewith.

[0019] An ultrasonic sensor 119 is fixedly connected to the inner wall of the first rotating wheel 11, a collar 18 and the top of the fixed platform of the bucket wheel stacker reclaimer are fixedly connected via a fixed bar 15, and the collar 18 is movably fitted onto the outer periphery of the rotating platform of the bucket wheel stacker reclaimer, one end of the fixed bar 15 is fixedly connected to the top of the fixed platform of the bucket wheel stacker reclaimer and the other end of the fixed bar 15 is fixedly connected to the collar 8, the ultrasonic sensor 119 is located above the collar 18, the bottom of the collar 18 is in contact with the horizontal end of the first rotating wheel 11, and an electromagnet 117 is fixedly connected on the collar 18, and when the electromagnet 117 is in an energized state, the electromagnet 117 and the first rotating wheel 11 are magnetically attracted to each other. By providing the electromagnet 117, when the electromagnet 117 is in a power-off state, the first rotating wheel 11 can be driven to rotate when the rotary motor 11 rotates, and the first rotating wheel 11 can rotate the ultrasonic sensor 119, making it easy to change the position of the ultrasonic sensor 119. When the electromagnet 117 is in a power-on state, the electromagnet 117 and the first rotating wheel 11 are magnetically attracted to each other, fixing the position of the first rotating wheel 11, and further fixing the position of the ultrasonic sensor 119.

[0020] The above-mentioned position limiting structure 2 includes a support ring 14 fixedly connected to the top of the collar 18, the support ring 14 is located above the ultrasonic sensor 119, the second rotating wheel 10 is movably fitted to the outer ring of the support ring 14, the second rotating wheel 10 is movably connected to the top of the first rotating wheel 11, the ultrasonic sensor 29 is fixedly connected to the inner bottom of the second rotating wheel 10, the support ring 14 is located above the ultrasonic sensor 29, and a gear ring 2 is fixedly connected to the outer wall of the second rotating wheel 10, the gear ring 2 is located above the gear 1, the position limiting structure 2 further includes a rotary motor 213 fixedly connected to the fixed platform of the bucket wheel stacker-reclaimer, a gear 212 is fixedly connected to the end of the output shaft of the rotary motor 213 via a reducer, and the gear 212 meshes with the gear ring 2. By installing the rotary motor 213, the gear 212 fixedly connected thereto can be driven to rotate when the rotary motor 213 rotates, and the gear 212 can rotate the second rotating wheel 10 via the gear ring 2 meshing with it, and the second rotating wheel 10 can change the position of the ultrasonic sensor 29 when it rotates.

[0021] The positioning block 8 is fixedly connected to the rotating platform of the bucket wheel stacker reclaimer, and the positioning block 8 is between the ultrasonic sensor 119 and the ultrasonic sensor 29, and the thickness of the positioning block 8 is the same as the height of both the ultrasonic sensor 119 and the ultrasonic sensor 29. By installing the positioning block 8, when the cantilever arm of the bucket wheel stacker reclaimer rotates, the rotating platform also rotates, and when the rotating platform rotates, the positioning block 8 which is fixedly connected to it can be rotated. The angle between the ultrasonic sensor 119 and the ultrasonic sensor 29 is the maximum angle at which the cantilever arm can rotate, and the rotation angle of the cantilever arm can be limited by using the ultrasonic sensor 119 and the ultrasonic sensor 29 to detect the distance between the cantilever arm and the positioning block 8.

[0022] The scanning structure includes an upper scanner 6 connected to the top of the cantilever arm of the bucket wheel stacker reclaimer and a lower scanner 4 connected to the bottom of the cantilever arm of the bucket wheel stacker reclaimer. The scanning structure further includes a rotation motor 37 and a bracket 5, one end of the rotation motor 37 is fixedly connected to the top of the cantilever arm of the bucket wheel stacker reclaimer, and the output shaft end of the rotation motor 37 is fixedly connected to the bottom of the upper scanner 6 through a reducer. By installing the rotation motor 37, the upper scanner 6 can be rotated when the rotation motor 37 rotates, and the upper scanner 6 can scan the environment on the same plane, and the bracket 5 can be rotated. One end of the racket 5 is fixedly connected to the bottom of the cantilever arm of the bucket wheel stacker reclaimer, and a round bar is movably connected to the other end of the bracket 5, one end of the round bar is fixedly connected to the lower scanner 4, and a rotary motor 43 is fixedly connected to the side of the bracket 5 away from the lower scanner 4, and the end of the output shaft of the rotary motor 43 is fixedly connected to the other end of the round bar via a reducer. By installing the rotary motor 43, the lower scanner 4 can be rotated when the rotary motor 43 rotates, and the lower scanner 4 can scan in a vertical plane, and both the upper scanner 6 and the lower scanner 4 can be used in combination to collect the surrounding environment of the cantilever arm.

[0023] The upper scanner 6 and the lower scanner 4 can both be laser scanners. When this device is used, the laser scanner collects the surrounding environment of the cantilever arm and uploads the collected data to the control motherboard. The control motherboard uses the three-dimensional imaging principle to establish the real-time spatial position between the coal stack model and the cantilever arm of the bucket wheel stacker reclaimer in real time, calculates the relative position relationship between the two and the maximum rotation angle of the cantilever arm, and the control motherboard adjusts the positions of the ultrasonic sensor 119 and the ultrasonic sensor 29 according to the calculation result. When the position of the cantilever arm reaches the set value, the control motherboard stops the rotation of the cantilever arm and limits the position of the cantilever arm.

[0024] All electrical components in this application are prior art, and those skilled in the art are expected to understand the connection method. In order to meet the control needs, those skilled in the art should connect all electrical components in this application with the appropriate power supply through leads, and select the appropriate control device according to the actual situation. The connection and control sequence shall refer to the following description, and the electrical connection shall be made according to the forward and backward operation sequence between each electrical component, and the detailed connection method is known in the art. The following mainly introduces the operation principle and process, and the electrical control will not be further described.

[0025] The above rotary motor 11, rotary motor 213, rotary motor 37 and rotary motor 43 are all self-locking motors, the model number of both rotary motor 11 and rotary motor 213 can be YD280M-8 / 6 / 4, and the model number of both rotary motor 37 and rotary motor 43 can be XMD11-9-I.

[0026] As described above, when using the bucket wheel stacker reclaimer rotation position limiting device, the scanning structure collects the surrounding environment of the cantilever arm of the bucket wheel stacker reclaimer, and uploads the collected data to the control motherboard, and the control motherboard uses the three-dimensional imaging principle to establish the real-time spatial position between the coal stack model and the cantilever arm of the bucket wheel stacker reclaimer in real time, calculates the relative position relationship between the two and the maximum rotation angle of the cantilever arm, and the control motherboard adjusts the positions of the ultrasonic sensor 119 and the ultrasonic sensor 29 according to the calculation result. The procedure for adjusting the positions of the ultrasonic sensor 119 and the ultrasonic sensor 29 is as follows: the rotary motor 11 is operated, the rotary motor 11 rotates the gear 12 fixedly connected thereto, the gear 12 rotates the first rotating wheel 11 through the gear ring 1 meshing with it, the first rotating wheel 11 rotates the ultrasonic sensor 119, and when the ultrasonic sensor 119 moves to the appropriate position, the rotary motor 11 stops and self-locks, fixing the position of the ultrasonic sensor 119, and the electromagnet 117 is in an energized state, fixing the position of the first rotating wheel 11 to improve the positional stability of the ultrasonic sensor 119. When the rotary motor 213 is operated, the rotary motor 213 rotates the gear ring 2 through the gear 212 fixedly connected thereto, the gear ring 2 rotates the second rotating wheel 10 fixedly connected thereto, the second rotating wheel 10 rotates the ultrasonic sensor 29, the position of the ultrasonic sensor 29 changes, and when the ultrasonic sensor 29 moves to the appropriate position, the rotary motor 213 self-locks, and the electromagnet 216 is in an energized state, which can increase the positional stability of the ultrasonic sensor 219.When the bucket wheel stacker reclaimer is used, the rotating platform drives the cantilever arm and positioning block 8 to rotate, and the rotation angle of the positioning block 8 is the same as the rotation angle of the cantilever arm. The position of the cantilever arm can be determined by detecting the distance between the positioning block and the ultrasonic sensor 119 or the ultrasonic sensor 29. The ultrasonic sensor 119 or the ultrasonic sensor 29 collects the position of the positioning block in real time. When the position of the cantilever arm reaches a limit value, the ultrasonic sensor 119 or the ultrasonic sensor 29 uploads the collected data to the control motherboard, and the control motherboard directly controls the rotation of the cantilever arm to stop it, and it automatically resumes after the operator checks and removes it.

[0027] The standard parts used in the present invention are commercially available, the profile parts can be customized according to the specification and drawings, the connection methods of each part are conventional methods such as mature bolts, rivets and welding in the prior art, and the machines, parts and equipment also adopt the general model numbers of the prior art, and are not described in detail here. All contents not described in detail in this specification are prior art known to those skilled in the art. As described above, the embodiments of the present invention have been shown and described, but those skilled in the art may make various changes, modifications, substitutions and variations to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is limited by the claims and their equivalents. [Explanation of symbols]

[0028] 1: Rotation motor 1, 2: Gear 1, 3: Rotation motor 4, 4: Lower scanner, 5: Bracket, 6: Upper scanner, 7: Rotation motor 3, 8: Positioning block, 9: Ultrasonic sensor 2, 10: Second rotating wheel, 11: First rotating wheel, 12: Gear 2, 13: Rotation motor 2, 14: Support ring, 15: Fixed rod, 16: Electromagnet 2, 17: Electromagnet 1, 18: Collar, 19: Ultrasonic sensor 1

Claims

1. A bucket wheel stacker reclaimer rotational position limiting device, comprising: The present invention includes a position limiting structure 1, a position limiting structure 2, a scanning structure and a positioning block (8), The position limiting structure 1 includes a first rotating wheel (11) movably connected to a fixed platform of a bucket wheel stacker reclaimer, an ultrasonic sensor 1 (19) fixedly connected to an inner wall of the first rotating wheel (11), and a collar (18) fixedly connected to the fixed platform of the bucket wheel stacker reclaimer; The collar (18) is movably fitted to the outer periphery of the rotating platform of the bucket wheel stacker reclaimer, An electromagnet 1 (17) is fixed on the collar (18), When the electromagnet 1 (17) is energized, the electromagnet 1 (17) and the first rotating wheel (11) are magnetically attracted to each other, The position limiting structure 2 includes a support ring (14) fixedly connected to the top of a collar (18); A second rotating ring (10) is movably fitted to the outer ring of the support ring (14), An ultrasonic sensor 2 (9) is fixedly connected to the inside of the second rotating wheel (10), An electromagnet 2 (16) is uniformly fixed on the support ring (14), When the electromagnet 2 (16) is in a conducting state, the electromagnet 2 (16) and the second rotating wheel (10) are attracted to each other by magnetism, The positioning block (8) is fixedly connected to a fixed platform of a bucket wheel stacker reclaimer; and The positioning block (8) is between the ultrasonic sensor 1 (19) and the ultrasonic sensor 2 (9), 1. The bucket wheel stacker reclaimer rotational position limiting device according to claim 1, wherein the scanning structure includes an upper scanner (6) connected to the top of the cantilever arm of the bucket wheel stacker reclaimer, and a lower scanner (4) connected to the bottom of the cantilever arm of the bucket wheel stacker reclaimer.

2. A gear ring 1 is fixedly connected to the outer wall of the first rotating wheel (11); The position limiting structure 1 further includes a rotary motor 1 (1) fixedly connected to a fixed platform of the bucket wheel stacker reclaimer; A gear 1 (2) is fixedly connected to the end of the output shaft of the rotary motor 1 (1), 2. A bucket wheel stacker-reclaimer rotational position limiting device as claimed in claim 1, characterized in that the gear 1 (2) meshes with a gear ring 1.

3. A gear ring 2 is fixedly connected to the outer wall of the second rotating wheel (10); The gear ring 2 is above the gear ring 1, The position limiting structure 2 further includes a rotary motor 2 (13) fixedly connected to a fixed platform of the bucket wheel stacker reclaimer; A gear 2 (12) is fixedly connected to the end of the output shaft of the rotary motor 2 (13), 3. A bucket wheel stacker-reclaimer rotational position limiting device as claimed in claim 2, characterized in that said gear (2) (12) meshes with a gear ring (2).

4. The collar (18) contacts the top of the first rotating wheel (11), The collar (18) is fixedly connected to a fixed platform of a bucket wheel stacker reclaimer via a fixing bar (15); 2. A bucket wheel stacker-reclaimer rotational position limiting device according to claim 1, characterized in that the second rotating wheel (10) is movably connected to the top of the first rotating wheel (11).

5. The scanning structure further includes a rotation motor 3 (7) and a bracket (5); One end of the rotary motor 3 (7) is fixedly connected to the top of the cantilever arm of the bucket wheel stacker reclaimer, The end of the output shaft of the rotary motor 3 (7) is fixedly connected to the bottom of the upper scanner (6); One end of the bracket (5) is fixedly connected to the bottom of the cantilever arm of the bucket wheel stacker reclaimer, A round bar is movably connected to the other end of the bracket (5), and one end of the round bar is fixedly connected to the lower scanner (4); A rotary motor 4 (3) is fixedly connected to the lower side of the bracket (5) away from the scanner (4), 2. The bucket wheel stacker reclaimer rotation position limiting device according to claim 1, wherein an end of the output shaft of the rotary motor (4, 3) is fixedly connected to the other end of the round bar.

6. The support ring (14) is located above both ultrasonic sensor 1 (19) and ultrasonic sensor 2 (9); 2. The bucket wheel stacker reclaimer rotational position limiting device according to claim 1, characterized in that the thickness of said positioning block (8) is the same as the height of both ultrasonic sensor 1 (19) and ultrasonic sensor 2 (9).

Images