Depth positioning device suitable for vertical shaft double-layer cage

Abstract

The depth positioning device comprises a fixed chassis and a control machine, the fixed chassis is fixedly installed on the lower portion of the double-layer cage through screws, a spring shaft is installed on the surface of the fixed chassis through a spring shaft seat, a sleeve seat is fixedly installed at the end of the spring shaft, and the side edge of the sleeve seat is connected with one end of a sleeve in a welded mode. A measuring wheel disc fork arm is fixedly mounted at the far end of the telescopic arm, and a measuring wheel disc is mounted on the measuring wheel disc fork arm through a bearing and a photoelectric measuring head; the control machine is fixedly mounted on the rear surface of the spring shaft seat through screws; according to the utility model, the lifting distance of the cage can be stably and accurately measured, and the problem that the cage opening cannot be aligned with the lapping plate due to inaccurate measurement can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to a cage control device, in particular to a depth positioning device suitable for a double-layer cage in a vertical shaft. Background Art

[0002] When the coal mine cage is lifted or lowered, the cage opening needs to be precisely aligned with the lap plate to facilitate people going up and down. The current cage lifting distance is mainly calculated by the cable coding counter on the lifting host, or a sensing device is set at the cage stop point to determine whether the cage is in place. However, both methods have the problem of inaccurate counting, which causes the cage opening to be unable to align with the lap plate, causing safety hazards.

[0003] At present, the utility model with patent announcement number CN214217870U discloses a tank cage parking position detection device, including a tank cage body, a measuring rope, a detection mark, an auxiliary hoist and a detection ring, wherein a steel wire rope is connected to the middle of the upper end of the tank cage body, and the steel wire rope is connected to the main hoist, a measuring rope is connected to the side of the upper end of the tank cage body, and the upper end of the measuring rope is connected to the auxiliary hoist, and a detection mark is arranged in the middle of the measuring rope, an upper bracket is arranged at the upper right end of the auxiliary hoist, and a sliding sleeve is connected through the middle of the upper bracket, upper connecting rods are arranged at both ends of the sliding sleeve, and the lower end of the upper connecting rod is connected to the detection ring. The tank cage parking position detection device is provided with an upper roller and a lower roller, and through the cooperation between the upper roller and the lower roller, when the measuring rope is retracted and released, the measuring rope can always keep an equal distance from the detection ring, thereby improving the accuracy of the detection, while avoiding the collision between the detection ring and the measuring rope, extending the service life of the detection ring, and increasing the functionality of the device.

[0004] From the above disclosed technical content, it can be known that, as a prior art, the utility model with announcement number CN214217870U measures the descent distance of the cage by sensing the length of the cable. However, the cable will sway slightly when the cage is raised or lowered, which invisibly lengthens the length of the cable. At the same time, the device needs to be equipped with a corresponding measuring rope when it is installed. The greater the descent distance of the cage, the longer the measuring rope needs to be prepared. The longer the measuring rope length means the increase of the measuring rope's own weight. In addition, the weight of the double-layer cage itself will also cause the measuring rope to be stretched, affecting the measurement result. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the utility model provides a depth positioning device suitable for a double-layer tank cage in a vertical shaft, which can stably and accurately measure the lifting distance of the tank cage and effectively prevent the problem that the tank cage opening cannot be aligned with the lap plate due to inaccurate measurement.

[0006] To achieve the above object, the present utility model provides a depth positioning device applicable to a double-deck cage in a vertical shaft, which includes a measuring wheel disc, a wheel disc body, a telescopic spring rod, a rotating shaft, a measuring section, an optical path, a connecting plate, a photoelectric measuring head, a laser, a rotating shaft cavity, an optical path cavity, a laser receiver, a measuring wheel disc fork arm, a telescopic arm, a sleeve, a spring shaft, a spring shaft seat, a fixed chassis, a sleeve seat and a control machine. The fixed chassis is fixedly installed at the lower part of the double-deck cage by screws. The surface of the fixed chassis is provided with a spring shaft through a spring shaft seat. One end of the spring shaft is fixedly installed with a sleeve seat. One side of the sleeve seat is welded to one end of the connecting sleeve. The other end of the sleeve is sleeved with the telescopic arm. The distal end of the telescopic arm is fixedly installed with a measuring wheel disc fork arm. The measuring wheel disc fork arm is installed with a measuring wheel disc through a bearing and a photoelectric measuring head. The rear surface of the spring shaft seat is fixedly installed with a control machine by screws.

[0007] In addition, the depth positioning device applicable to a double-deck cage in a vertical shaft proposed according to the above embodiment of the present utility model may further have the following additional technical features:

[0008] As a further improvement of the present utility model, the measuring wheel disc includes a wheel disc body, a telescopic spring rod, a rotating shaft, an optical path, and a connecting plate. Mounting holes are arranged at equal intervals on the side of the wheel disc body. The telescopic spring rod is inserted into the mounting hole and fixed by screws. A rotating shaft is installed at the center of the wheel disc body. One end of the rotating shaft protruding outside the measuring wheel disc fork arm extends into the photoelectric measuring head. A measuring section is provided on a section of the rotating shaft extending into the photoelectric measuring head. The measuring section includes a connecting plate. Six connecting plates are arranged in a circular shape and at equal intervals at the end of the rotating shaft. The gap between two connecting plates is the optical path.

[0009] As a further improvement of the present utility model, the end of the telescopic spring rod is conical and is equipped with anti-slip lines.

[0010] As a further improvement of the present utility model, the photoelectric measuring head includes a laser, a rotating shaft cavity, an optical path cavity and a laser receiver. An optical path cavity is provided inside the photoelectric measuring head. The measuring section is arranged in the rotating shaft cavity in the middle of the optical path cavity. The laser and the laser receiver are respectively installed at both ends of the optical path cavity. The laser and the laser receiver are respectively connected to the control machine by wires.

[0011] As a further improvement of the present utility model, pin holes are arranged at equal intervals on the sides of the sleeve and the telescopic arm and are equipped with pin posts.

[0012] As a further improvement of the present utility model, the cross section of the telescopic arm is waist-shaped.

[0013] With the above solution, the utility model has at least the following advantages: Compared with the conventional method of using an encoder and counting the length of the steel wire rope, by installing spring shaft seats on the surface of the double-deck cage, the measuring wheel disc contacts the side wall of the vertical shaft through the spring shaft seats, telescopic arms and sleeves. Driven by the lifting and lowering of the double-deck cage, the measuring wheel disc rolls on the side wall of the vertical shaft. The laser emitted by the laser in the photoelectric measuring head passes through the optical path of the measuring section and is received by the laser receiver. The distance rolled by the measuring wheel disc is determined by the number of laser interruptions, and then the lifting depth of the cage is determined. The lifting distance of the cage can be measured stably and accurately, and the problem that the cage opening cannot be aligned with the lap plate caused by inaccurate measurement can be effectively prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional schematic diagram of a depth positioning device applicable to a double-deck cage in a vertical shaft;

[0015] Figure 2 is a three-dimensional view of the measuring wheel disc of a depth positioning device applicable to a double-deck cage in a vertical shaft;

[0016] Figure 3 is a structural diagram of the measuring section of a depth positioning device applicable to a double-deck cage in a vertical shaft;

[0017] Figure 4 is a structural diagram of the photoelectric measuring head of a depth positioning device applicable to a double-deck cage in a vertical shaft;

[0018] In the figure: 1. Measuring wheel disc, 1-1. Wheel disc body, 1-2. Telescopic spring rod, 1-3. Rotating shaft, 1-4. Measuring section, 1-41. Optical path, 1-42. Connecting plate, 2. Photoelectric measuring head, 2-1. Laser, 2-2. Rotating shaft cavity, 2-3. Optical path cavity, 2-4. Laser receiver, 3. Measuring wheel disc fork arm, 4. Telescopic arm, 5. Sleeve, 6. Spring shaft, 7. Spring shaft seat, 8. Fixed chassis, 9. Sleeve seat, 10. Control machine. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following describes the depth positioning device applicable to a double-deck cage in a vertical shaft of the present utility model with reference to the drawings.

[0020] In the first embodiment of the present application, as Figure 1As shown in the figure, the depth positioning device applicable to the double-deck cage in the vertical shaft (hereinafter referred to as "the present invention") includes a measuring wheel disc 1, a photoelectric measuring head 2, a measuring wheel disc fork arm 3, a telescopic arm 4, a sleeve 5, a spring shaft 6, a spring shaft seat 7, a fixed chassis 8, a sleeve seat 9 and a control machine 10. The fixed chassis 8 is fixedly installed at the lower part of the double-deck cage by screws. The surface of the fixed chassis 8 is provided with a spring shaft 6 through a spring shaft seat 7. One end of the spring shaft 6 is fixedly installed with a sleeve seat 9. One side of the sleeve seat 9 is welded to one end of the sleeve 5. The other end of the sleeve 5 is sleeved with the telescopic arm 4. The distal end of the telescopic arm 4 is fixedly installed with a measuring wheel disc fork arm 3. The measuring wheel disc fork arm 3 is provided with a measuring wheel disc 1 through a bearing and a photoelectric measuring head 2. The rear surface of the spring shaft seat 7 is fixedly installed with a control machine 10 by screws.

[0021] A cage docking position detection device with the utility model patent publication number CN214217870U (hereinafter referred to as "this patent") measures the descending distance of the cage by sensing the length of the cable. However, the cable will vibrate slightly when the cage is lifted or lowered, which virtually lengthens the length of the cable. At the same time, a corresponding measuring rope needs to be equipped during the installation of this device. The greater the descending distance of the cage, the longer the measuring rope needs to be prepared. And the longer the measuring rope means the greater the self-weight of the measuring rope. Coupled with the weight of the double-deck cage itself, it will also cause the measuring rope to stretch, affecting the measurement result. While the present invention installs a spring shaft seat 7 on the surface of the double-deck cage. The measuring wheel disc 1 is brought into contact with the side wall of the vertical shaft by the spring shaft seat 7, the telescopic arm 4 and the sleeve 5. The measuring wheel disc 1 rolls on the side wall of the vertical shaft driven by the lifting and lowering of the double-deck cage, so as to measure the distance that the measuring wheel disc 1 rolls through driven by the lifting and lowering, and then determine the depth of the cage lifting and lowering.

[0022] The structure of the second embodiment is basically the same as that of the first embodiment, the difference is that, as Figures 2 to 4As shown in the figure, the measurement wheel 1 includes a wheel body 1-1, a telescopic spring rod 1-2, a rotating shaft 1-3, an optical path 1-41, and a connecting plate 1-42. Mounting holes are arranged at equal intervals on the side of the wheel body 1-1. The telescopic spring rod 1-2 is inserted into the mounting hole and fixed by screws. The rotating shaft 1-3 is installed at the center of the wheel body 1-1. One end of the rotating shaft 1-3 that protrudes outside the fork arm 3 of the measurement wheel extends into the photoelectric measurement head 2. A measurement section 1-4 is provided on a section of the rotating shaft 1-3 that extends into the photoelectric measurement head 2. The measurement section 1-4 includes a connecting plate 1-42. Six connecting plates 1-42 are circular and arranged at equal intervals at the end of the rotating shaft 1-3. The gap between two connecting plates 1-42 is the optical path 1-41. The photoelectric measurement head 2 includes a laser 2-1, a rotating shaft cavity 2-2, an optical path cavity 2-3, and a laser receiver 2-4. An optical path cavity 2-3 is provided inside the photoelectric measurement head 2. The measurement section 1-4 is arranged in the rotating shaft cavity 2-2 in the middle of the optical path cavity 2-3. The laser 2-1 and the laser receiver 2-4 are respectively installed at both ends of the optical path cavity 2-3. The laser 2-1 and the laser receiver 2-4 are respectively connected to the control machine 10 through wires. The end of the telescopic spring rod 1-2 is conical and is equipped with anti-slip lines.

[0023] In order to further optimize the working efficiency of this application and facilitate adjusting the angles and lengths of the sleeve 5 and the telescopic arm 4 during use, pin holes are arranged at equal intervals on the sides of the sleeve 5 and the telescopic arm 4 and are equipped with pin posts. In order to further ensure the stability of the telescopic arm 4 and prevent the measurement wheel 1 from tilting, the cross-section of the telescopic arm 4 is waist-shaped.

[0024] During use, install the depth positioning device suitable for the double-deck cage in the vertical shaft, and connect the corresponding line equipment to put it into use.

[0025] When the utility model is in use, the specific working process is as follows:

[0026] In use, the fixed chassis 8 is installed on the upper part of the double-deck cage. Under the action of the spring shaft 6, the telescopic arm 4 and the sleeve 5 press the measuring wheel disc 1 on the measuring wheel disc fork arm 3 against the surface of the vertical shaft side wall. When the double-deck cage is lifted or lowered, the end of the telescopic spring rod 1-2 on the surface of the wheel disc body 1-1 abuts against the surface of the vertical shaft side wall. As the double-deck cage descends, the telescopic spring rod 1-2 drives the wheel disc body 1-1 to rotate around the rotating shaft 1-3. The rotating shaft 1-3 simultaneously drives the measuring section 1-4 to rotate in the rotating shaft cavity 2-2 of the photoelectric measuring head 2. At this time, the laser emitted by the laser 2-1 passes through the optical path 1-41 and is received by the laser receiver 2-4. Since the measuring section 1-4 rotates continuously with the rotating shaft 1-3, the connecting plate 1-42 will continuously block the laser, causing the laser receiver 2-4 to be unable to receive the laser. The controller 10 can calculate the lifting distance of the double-deck cage based on the interval and number of laser reception interruptions and transmit it to the dispatching room. When the double-deck cage rises to the wellhead, the telescopic arm 4 and the sleeve 5 will be pressed to the ground under the action of the spring shaft 6. At this time, the depressed spring shaft 6 triggers the encoder or travel switch thereon, and the controller 10 automatically resets and calibrates to reduce errors.

[0027] The telescopic spring rod 1-2 and the spring shaft 6 can effectively filter out the fluctuations of the measuring wheel disc 1 caused by the uneven surface of the vertical shaft side wall, ensuring that the measuring wheel disc 1 works in a relatively stable state.

[0028] In summary, the depth positioning device for the vertical shaft double-deck cage in the embodiment of the present utility model contacts the measuring wheel disc 1 with the vertical shaft side wall through the spring shaft seat 7, the telescopic arm 4 and the sleeve 5 installed on the surface of the double-deck cage. The lifting and lowering of the double-deck cage drive the measuring wheel disc 1 to roll on the vertical shaft side wall. The laser emitted by the laser 2-1 built in the photoelectric measuring head 2 passes through the optical path 1-41 of the measuring section 1-4 and is received by the laser receiver 2-4. The distance rolled by the measuring wheel disc 1 is determined by the number of laser interruptions, and then the lifting depth of the cage is determined. The lifting distance of the cage can be measured stably and accurately, and the problem that the cage opening cannot be aligned with the lap plate due to inaccurate measurement can be effectively prevented.

[0029] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A depth positioning device for a double-layer cage in a vertical shaft, comprising a fixed chassis (8) and a control machine (10), wherein the fixed chassis (8) is fixedly mounted on the lower part of the double-layer cage by screws, and is characterized in that: The surface of the fixed chassis (8) is provided with a spring shaft (6) via a spring shaft seat (7), the end of the spring shaft (6) is fixedly provided with a sleeve seat (9), the side of the sleeve seat (9) is welded to one end of a sleeve (5), the other end of the sleeve (5) is sleeved with a telescopic arm (4), the far end of the telescopic arm (4) is fixedly provided with a measuring wheel fork arm (3), the measuring wheel fork arm (3) is provided with a measuring wheel (1) via a bearing and a photoelectric measuring head (2); the rear surface of the spring shaft seat (7) is fixedly provided with a control machine (10) via screws.

2. The depth positioning device for a double-layer cage in a vertical shaft according to claim 1 is characterized in that: The measuring wheel (1) comprises a wheel body (1-1), a retractable spring rod (1-2), a rotating shaft (1-3), an optical path (1-41), and a connecting plate (1-42). The wheel body (1-1) is provided with mounting holes at equal intervals on its side. The retractable spring rod (1-2) is inserted into the mounting hole and fixed by screws. The rotating shaft (1-3) is installed at the center of the wheel body (1-1). One end of the rotating shaft (1-3) exposed outside the measuring wheel fork arm (3) extends into the photoelectric measuring head (2). A section of the rotating shaft (1-3) extending into the photoelectric measuring head (2) is provided with a measuring section (1-4). The measuring section (1-4) comprises a connecting plate (1-42). Six connecting plates (1-42) are circular and arranged at equal intervals at the end of the rotating shaft (1-3). The gap between two connecting plates (1-42) is the optical path (1-41).

3. The depth positioning device for a double-layer cage in a vertical shaft according to claim 2 is characterized in that: The ends of the telescopic spring rods (1-2) are tapered and provided with anti-slip grooves.

4. The depth positioning device for a double-layer cage in a vertical shaft according to claim 1 is characterized in that: The photoelectric measuring head (2) comprises a laser (2-1), a rotating shaft cavity (2-2), an optical path cavity (2-3) and a laser receiver (2-4); an optical path cavity (2-3) is provided inside the photoelectric measuring head (2); a measuring section (1-4) is arranged in the rotating shaft cavity (2-2) in the middle of the optical path cavity (2-3); the laser (2-1) and the laser receiver (2-4) are respectively installed at both ends of the optical path cavity (2-3); and the laser (2-1) and the laser receiver (2-4) are respectively connected to a control machine (10) via electric wires.

5. The depth positioning device for a double-layer cage in a vertical shaft according to claim 4 is characterized in that: The sleeve (5) and the telescopic arm (4) are provided with pin holes at equal intervals on their sides and are equipped with pins.

6. The depth positioning device for a double-layer cage in a vertical shaft according to claim 4, characterized in that: The cross section of the telescopic arm (4) is waist-shaped.

Images