Grain unloading platform lifting angle detection equipment

Abstract

A grain unloading platform lifting angle detection device comprises a supporting bottom frame, a lifting platform is rotationally installed on the supporting bottom frame, a fixed main plate is installed on the supporting bottom frame, a rotating seat is installed at one end of the fixed main plate, a rotating shaft is movably installed in the rotating seat, a rotating plate is installed on the rotating shaft in a sleeving mode, and the fixed main plate is installed on the supporting bottom frame. According to the utility model, the rotating plate and the fixed main plate of the detection mechanism are respectively arranged on the lifting platform and the supporting underframe, when the lifting platform is lifted, the rotating plate rotates along with the lifting platform, and the detection mechanism is arranged on the fixed main plate and the rotating plate. The lifting angle is calculated according to the length, detected by the wire puller, of the fixed mainboard and the rotating plate in cooperation with numerical values of the angle detector and the calibration disc, the lifting angle is displayed in a numerical value display screen installed on the rotating plate, meanwhile, electric signals can be transmitted to the outside through a signal transmission device installed in the rotating plate, and the lifting angle of the unloading platform can be conveniently detected.

Description

Technical Field

[0001] This utility model relates to the field of angle detection technology, and in particular to a lifting angle detection device for a grain unloading platform. Background Technology

[0002] The existing hydraulic grain unloading platforms typically have an inclined platform at one end made of bricks and cement, or the platform is partially buried underground, making installation inconvenient. During unloading, the platform forms a certain angle with the ground. The lifting angle needs to be checked during the lifting process to avoid instability caused by an excessively large lifting angle, which could lead to a rollover accident.

[0003] Therefore, it is essential to provide a grain unloading platform lifting angle detection device to address the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a grain unloading platform lifting angle detection device. This invention involves installing the rotating plate and the fixed main plate of the detection mechanism on the lifting platform and the support base respectively. When the lifting platform is lifted, the rotating plate rotates accordingly. The lifting angle is calculated based on the length of the fixed main plate and the rotating plate detected by the cable puller, combined with the values ​​of the angle detector and the calibration plate. The calculated value is displayed on the numerical display screen installed on the rotating plate. At the same time, the signal transmission device installed inside the rotating plate can transmit the signal to the outside, which facilitates the detection of the lifting angle of the unloading platform.

[0005] The above-mentioned objectives of this utility model are achieved through the following technical means.

[0006] A grain unloading platform lifting angle detection device is provided, including a support base frame, a lifting platform rotatably mounted on the support base frame, a fixed main board mounted on the support base frame, a rotating seat mounted at one end of the fixed main board, a rotating shaft movably mounted inside the rotating main board, a rotating plate sleeved on the rotating shaft, the fixed main board mounted on the support base frame, the rotating plate mounted on the lifting platform, and a detection mechanism mounted on the fixed main board and the rotating plate.

[0007] The testing mechanism includes a pull wire, an angle detector, and a numerical display screen. The pull wire is installed on the top of the fixed main plate and is connected to the rotating shaft. The angle detector is installed on the top of the rotating plate, and the numerical display screen is installed in the center of the rotating plate.

[0008] Specifically, a calibration plate is fitted onto the bottom of the rotating seat, and the calibration plate has scale lines.

[0009] Specifically, the rotating plate is also provided with an opening slot, and an indicator plate is installed in the opening slot. The indicator plate is vertically installed above the calibration plate.

[0010] Specifically, both the rotating plate and the fixed main plate are provided with mounting holes, and positioning bolts are installed in the mounting holes. The positioning bolts fix the rotating plate and the fixed main plate to the support base and the lifting platform.

[0011] Specifically, a signal transmission device is installed inside the rotating plate, and the signal transmission device is electrically connected to the numerical display screen.

[0012] This invention involves mounting the rotating plate and fixed main plate of the detection mechanism on the lifting platform and the support base respectively. When the lifting platform is raised, the rotating plate rotates accordingly. The lifting angle is calculated based on the length of the fixed main plate and the rotating plate detected by the cable puller, along with the values ​​from the angle detector and calibration disc. The calculated value is displayed on the numerical display screen mounted on the rotating plate. Simultaneously, the signal transmission device installed inside the rotating plate can transmit electrical signals to the outside, facilitating the detection of the lifting angle of the unloading platform. Attached Figure Description

[0013] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.

[0014] Figure 1 This is a schematic diagram of the overall structure of a grain unloading platform lifting angle detection device according to this utility model.

[0015] Figure 2 This is a partial structural schematic diagram of a grain unloading platform lifting angle detection device according to the present invention.

[0016] from Figures 1 to 2 Including:

[0017] 1. Support frame;

[0018] 2. Lifting platform;

[0019] 3. Secure the motherboard;

[0020] 4. Rotating seat;

[0021] 5. Rotation axis;

[0022] 6. Rotating plate;

[0023] 7. Testing institutions;

[0024] 8. Cable puller;

[0025] 9. Angle detector;

[0026] 10. Numerical display screen;

[0027] 11. Calibration disk;

[0028] 12. Opening groove;

[0029] 13. Indicator board;

[0030] 14. Mounting holes;

[0031] 15. Signal transmission device. Detailed Implementation

[0032] The present invention will be further described in conjunction with the following embodiments.

[0033] Example 1.

[0034] like Figure 1-2 As shown, a grain unloading platform lifting angle detection device includes a support base frame 1, a lifting platform 2 rotatably mounted on the support base frame 1, a fixed main board 3 mounted on the support base frame 1, a rotating seat 44 mounted at one end of the fixed main board 3, a rotating shaft 5 movably mounted inside the fixed main board 3, and a rotating plate 6 sleeved on the rotating shaft 5. The fixed main board 3 is mounted on the support base frame 1, the rotating plate 6 is mounted on the lifting platform 2, and a detection mechanism 12 is mounted on the fixed main board 3 and the rotating plate 6.

[0035] The support base 1 is welded from carbon structural steel and has an overall rectangular frame structure. Adjustable anchor bolts are welded to the four corners of the bottom, and the levelness of the support base 1 can be adjusted by rotating the bolts. The lifting platform 2 is made of checkered steel plate and is rotatably mounted on the support base 1 via a hinge assembly. The diameter of the rotation shaft of the hinge assembly is [diameter missing], which allows the lifting platform 2 to rotate within a range of 0-90°.

[0036] A fixed main plate 3 is fixedly installed on the support base 1 using M12×30mm hex bolts. The fixed main plate 3 is cut from steel plate. A rotating seat 44 is fixed to one end of the fixed main plate 3 by welding. The rotating seat 44 is made of 45 steel and has a cylindrical structure. A through hole is opened inside the rotating seat 44. A rotating shaft 5 is movably installed in the through hole through a bearing assembly. The bearing assembly uses a deep groove ball bearing to ensure that the rotating shaft 5 can rotate flexibly in the rotating seat 44. The rotating shaft 5 is made of alloy steel. A rotating plate 6 is fitted to one end of the rotating shaft 5 by a flat key connection. The rotating plate 6 is made of the same steel plate as the fixed main plate 3, and the shape of the rotating plate 6 is adapted to the fixed main plate 3.

[0037] The testing mechanism 12 includes a puller 8, an angle detector 9, and a numerical display screen 10. The puller 8 is installed on the top of the fixed main plate 3 and is connected to the rotating shaft 5. The angle detector 9 is installed on the top of the rotating plate 6, and the numerical display screen 10 is installed in the center of the rotating plate 6.

[0038] The cable puller 8 is made of high-strength alloy material. Its main body is cylindrical with a pull ring at the top for easy operation. The pull ring surface has an anti-slip texture. The cable part of the cable puller 8 is made of steel wire, wrapped with a wear-resistant and corrosion-resistant plastic layer. The cable length is adjustable from 0 to 5 meters, and the end of the cable has a connecting buckle. The cable puller 8 is fixedly installed in the pre-set mounting slot at the top of the fixed main board 3 using four M6 hexagonal bolts. The mounting slot is compatible with the main structure of the cable puller 8 and contains a buffer rubber pad to reduce vibration during operation. The cable output end of the cable puller 8 is rigidly connected to the rotating shaft 5 via a coupling.

[0039] The angle detector 9 is a high-precision photoelectric angle sensor with a detection range of 0-360 degrees, a measurement accuracy of ±0.1 degrees, and a response time of no more than 50ms. The housing is made of ABS engineering plastic, which has good insulation and impact resistance. The surface of the housing is provided with heat dissipation holes. A calibration disk 11 is sleeved on the bottom of the rotating base 44. The calibration disk 11 is provided with scale lines. The rotating plate 6 is also provided with an opening slot 12. An indicator plate 13 is installed in the opening slot 12. The indicator plate 13 is vertically installed above the calibration disk 11. The top of the indicator plate 13 is installed in the opening slot 12 and fixed. The bottom of the indicator plate 13 points to the scale line on the calibration disk 11 for easy and intuitive observation of the rotation angle change.

[0040] Both the rotating plate 6 and the fixed main plate 3 are provided with mounting holes 14. Positioning bolts are installed in the mounting holes 14. The positioning bolts fix the rotating plate 6 and the fixed main plate 3 to the support base frame 1 and the lifting platform 2. The rotating plate 6 and the fixed main plate 3 move with the support base frame 1 and the lifting platform 2 respectively, increasing the accuracy of the detection.

[0041] The rotating plate 6 is equipped with a signal transmission device 15, which is electrically connected to the numerical display screen 10. The signal transmission device 15 is responsible for transmitting the numbers displayed on the numerical display screen 10 to the outside, so as to facilitate remote angle adjustment.

[0042] This invention involves mounting the rotating plate 6 and the fixed main plate 3 of the detection mechanism 12 on the lifting platform 2 and the support base 1, respectively. When the lifting platform 2 is lifted, the rotating plate 6 rotates accordingly. The lifting angle is calculated based on the length of the fixed main plate 3 and the rotating plate 6 detected by the cable puller 8, the angle detector 9, and the calibration disk 11. The calculated angle is displayed on the numerical display screen 10 installed on the rotating plate 6. Simultaneously, the numerical angle can be transmitted to the outside by the signal transmission device 15 installed inside the rotating plate 6, which facilitates the detection of the lifting angle of the unloading platform.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A grain unloading platform lifting angle detection device, characterized in that: The system includes a support base, on which a lifting platform is rotatably mounted. A fixed main board is mounted on the support base, and a rotating seat is mounted at one end of the fixed main board. A rotating shaft is movably mounted inside the rotating seat, and a rotating plate is sleeved on the rotating shaft. The fixed main board is mounted on the support base, and the rotating plate is mounted on the lifting platform. A detection mechanism is mounted on the fixed main board and the rotating plate. The detection mechanism includes a pull wire, an angle detector, and a numerical display screen. The pull wire is installed on the top of the fixed main board and is connected to the rotating shaft. The angle detector is installed on the top of the rotating plate, and the numerical display screen is installed in the center of the rotating plate.

2. The grain unloading platform lifting angle detection device according to claim 1, characterized in that: A calibration disk is fitted onto the bottom of the rotating seat, and the calibration disk has scale lines.

3. The grain unloading platform lifting angle detection device according to claim 2, characterized in that: The rotating plate is also provided with an opening slot, and an indicator plate is installed in the opening slot. The indicator plate is vertically installed above the calibration plate.

4. The grain unloading platform lifting angle detection device according to claim 3, characterized in that: Both the rotating plate and the fixed main plate are provided with mounting holes, and positioning bolts are installed in the mounting holes. The positioning bolts fix the rotating plate and the fixed main plate to the support base and the lifting platform.

5. The grain unloading platform lifting angle detection device according to claim 4, characterized in that: A signal transmission device is installed inside the rotating plate, and the signal transmission device is electrically connected to the numerical display screen.

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