A passive electric lower correction device
By designing a passive electric lower correction device, the conveyor belt is used to generate electricity and automatically correct the belt alignment, solving the problem that belt conveyor correction devices require manual adjustment and achieving automatic correction without the need for external power supply.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-26
AI Technical Summary
Existing belt conveyor correction devices require manual adjustment and cannot automatically adjust in real time according to the belt's deviation, which may cause wear on the return conveyor belt during high-speed operation.
A passive electric lower correction device was designed, comprising a positioning base, side plate, idler frame, battery, controller, deflection detection component, and power generation component. The deflection detection component detects the conveyor belt deviation, generates electricity using the power of the conveyor belt and stores it in the battery, and the controller starts the electric screw to drive the idler frame to rotate to achieve automatic correction.
It achieves real-time automatic belt alignment, eliminating the need for manual adjustments, and achieves the effect of not requiring external power supply through the power generation component.
Smart Images

Figure CN224278681U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of belt conveyor correction technology, and in particular to a passive electric lower correction device. Background Technology
[0002] Belt conveyors are important equipment for transporting bulk materials. They consist of a conveyor belt of a certain width that forms a closed loop, multiple sets of upper and lower idlers that support and position the conveyor belt, a drive roller, a drive unit, and a support frame. During the return journey, the conveyor belt is supported by the lower idlers. The lower idlers can correct the conveyor belt's deviation by adjusting their rotation angle. However, existing idler correction devices can only be adjusted manually and cannot immediately adjust according to the conveyor belt's deviation. Since the return conveyor belt is unloaded, it may still deviate during high-speed operation, leading to wear between the conveyor belt edge and the idler support frame. Therefore, a passive electric lower idler correction device was designed to solve the above problems. Utility Model Content
[0003] To address the shortcomings of existing belt conveyor alignment systems, the purpose of this invention is to provide a passive electric lower alignment device that offers advantages such as automatic alignment and no need for external power supply.
[0004] To achieve the above objectives, the present invention employs the following technical solution: a passive electric lower correction device, comprising a positioning base, side plates, a roller frame, a horizontal roller, a battery, a controller, a deflection detection component, an electric screw, and a power generation component. The positioning base has side plates for fixing on both end faces. The roller frame is rotatably connected to the middle of the positioning base, and the horizontal roller is rotatably connected to the top of the roller frame. The electric screw is hinged between the roller frame and the positioning base. Deflection detection components are provided on both sides of the front end of the positioning base. Each deflection detection component includes a contact shaft, a deflection bracket, and an angle sensor. The angle sensors are located on both sides of the front end of the positioning base. The angle sensor receiving shaft is fixedly connected to the deflection bracket, and the top of the deflection bracket is rotatably connected to the contact shaft, which is used to abut against the edge of the conveyor belt. A power generation component providing power is provided at the front end of the positioning base. A battery storing power from the power generation component is provided on the outer side of the side plates. A controller for controlling the extension and retraction of the electric screw is provided on one side of the positioning base.
[0005] Preferably, the roller frame has a horizontal limb, a hinge rod, and a rotating shaft. The bottom of the horizontal limb is provided with a rotating shaft for rotatably connecting with the positioning base. A horizontal roller is rotatably connected to the top of the horizontal limb. The hinge rod is vertically arranged at the front end of the horizontal limb. One end of the electric screw is hinged to the hinge rod, and the other end of the electric screw is hinged to the positioning base.
[0006] Preferably, when the contact shaft in the deflection detection assembly is deflected by the conveyor belt, the controller sends a signal to start the electric screw to drive the idler frame to rotate;
[0007] Preferably, the power generation component includes a generator, a friction shaft, and an extension bracket. The friction shaft is fixed to the front end of the positioning base via the extension bracket. The generator is fixed to the outside of the extension bracket. The generator input shaft passes through the extension bracket and is fixedly connected to the friction shaft. The friction shaft is used to conform to the return end face of the conveyor belt.
[0008] Preferably, the end face of the positioning base also has a protective plate to protect the electric lead screw;
[0009] The beneficial effects of this utility model are: 1. After the deflection detection component detects the conveyor belt deviation, it starts the electric screw through the controller, which drives the idler roller to rotate, thereby achieving the purpose of real-time automatic deviation correction; 2. The power generation component is driven by the conveyor belt to generate electricity, and the power of the power generation component is stored in the battery, thereby achieving the effect of not needing external power supply. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural view of the present invention;
[0011] Figure 2 This is a front structural view of the present invention;
[0012] Figure 3 This is a three-dimensional structural view of the present invention with the protective plate removed.
[0013] Figure 4 This is a three-dimensional structural view of the present invention in the correction state;
[0014] Figure 5 This is a three-dimensional structural view of the roller frame of this utility model. Detailed Implementation
[0015] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0016] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0017] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "equipped with," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0018] Please see Figures 1 to 5 The embodiments of this utility model include:
[0019] A passive electric lower correction device includes a positioning base 1, side plates 2, a roller frame 3, a horizontal roller 4, a battery 5, a controller 6, a deflection detection assembly 7, an electric lead screw 8, and a power generation assembly 9. The positioning base 1 has side plates 2 for fixing on both end faces. The roller frame 3 is rotatably connected to the middle of the positioning base 1. The horizontal roller 4 is rotatably connected to the top of the roller frame 3. The electric lead screw 8 is hinged between the roller frame 3 and the positioning base 1. Deflection detection assemblies 7 are provided on both sides of the front end of the positioning base 1. The deflection detection assembly 7 includes... The positioning base 1 includes a contact shaft 71, a deflection bracket 72, and an angle sensor 73. The angle sensor 73 is located on both sides of the front end of the positioning base 1. The receiving shaft of the angle sensor 73 is fixedly connected to the deflection bracket 72. The top of the deflection bracket 72 is rotatably connected to the contact shaft 71. The contact shaft 71 is used to abut against the edge of the conveyor belt. The front end of the positioning base 1 is provided with a power generation component 9. The outer side of the side plate 2 is provided with a battery 5 for storing the power of the power generation component 9. The side of the positioning base 1 is provided with a controller 6 for controlling the extension and retraction of the electric lead screw 8.
[0020] The roller frame 3 has a horizontal limb 31, a hinge rod 32 and a rotating shaft 33. The bottom of the horizontal limb 31 is provided with a rotating shaft 33 for rotatably connecting with the positioning base 1. The top of the horizontal limb 31 is rotatably connected to a horizontal roller 4. The hinge rod 32 is vertically arranged at the front end of the horizontal limb 31. One end of the electric screw 8 is hinged to the hinge rod 32, and the other end of the electric screw 8 is hinged to the positioning base 1.
[0021] When the contact shaft 71 in the deflection detection assembly is deflected by the conveyor belt, the controller 6 sends a signal to start the electric screw 8 to drive the roller frame 3 to rotate.
[0022] The power generation component 9 includes a generator 91, a friction shaft 92, and an extension bracket 93. The friction shaft 92 is fixed to the front end of the positioning base 1 through the extension bracket 93. The generator 91 is fixed to the outside of the extension bracket 93. The input shaft of the generator 91 passes through the extension bracket 93 and is fixedly connected to the friction shaft 92. The friction shaft 92 is used to fit against the return end face of the conveyor belt.
[0023] The end face of the positioning base 1 also has a protective plate 11 to protect the electric lead screw 8;
[0024] With the above settings, its specific working principle in actual operation is as follows:
[0025] When the conveyor belt is running normally, the conveyor belt is in contact with the friction shaft 92, which causes the friction shaft 92 to rotate during operation. The rotating friction shaft 92 drives the generator 91 to generate electricity. The electrical energy generated by the generator 91 is stored in the battery 5. When the battery 5 is fully charged, the controller 6 disconnects the electrical connection between the generator 91 and the battery 5.
[0026] When the conveyor belt deviates to one side, the edge of the conveyor belt touches the contact shaft 71 in the deflection detection component, thereby squeezing the contact shaft 71 to deflect outward. During the deflection process, the contact shaft 71 drives the angle sensor 73 to rotate through the deflection bracket 72. After receiving the signal, the angle sensor 73 transmits it to the controller 6. After receiving the signal, the controller 6 starts the electric screw 8 to drive the idler frame 3 to rotate, so that one side of the idler frame 3 is close to the side of the squeezed contact shaft 71, thereby performing automatic deviation correction.
[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A passive electric lower correction device, characterized in that, The system includes a positioning base, side plates, a roller frame, a horizontal roller, a battery, a controller, a deflection detection component, an electric lead screw, and a power generation component. The positioning base has side plates on both end faces for fixing. The roller frame is rotatably connected to the middle of the positioning base, and the horizontal roller is rotatably connected to the top of the roller frame. The electric lead screw is hinged between the roller frame and the positioning base. Deflection detection components are located on both sides of the front end of the positioning base. Each deflection detection component includes a contact shaft, a deflection bracket, and an angle sensor. The angle sensors are located on both sides of the front end of the positioning base. The angle sensor receiving shaft is fixedly connected to the deflection bracket, and the top of the deflection bracket is rotatably connected to the contact shaft, which is used to abut against the edge of the conveyor belt. A power generation component providing power is located at the front end of the positioning base. A battery storing power from the power generation component is located on the outer side of the side plates. A controller for controlling the extension and retraction of the electric lead screw is located on one side of the positioning base.
2. The passive electric lower correction device according to claim 1, characterized in that, The roller frame has a horizontal limb, a hinge rod, and a rotating shaft. The bottom of the horizontal limb is provided with a rotating shaft for rotatably connecting with the positioning base. A horizontal roller is rotatably connected to the top of the horizontal limb. The hinge rod is vertically arranged at the front end of the horizontal limb. One end of the electric lead screw is hinged to the hinge rod, and the other end of the electric lead screw is hinged to the positioning base.
3. The passive electric lower correction device according to claim 1, characterized in that, When the contact shaft in the deflection detection assembly is deflected by the conveyor belt, the controller sends a signal to start the electric screw to drive the idler frame to rotate.
4. The passive electric lower correction device according to claim 1, characterized in that, The power generation component includes a generator, a friction shaft, and an extension bracket. The friction shaft is fixed to the front end of the positioning base via the extension bracket. The generator is fixed to the outside of the extension bracket. The generator input shaft passes through the extension bracket and is fixedly connected to the friction shaft. The friction shaft is used to conform to the return end face of the conveyor belt.
5. The passive electric lower correction device according to claim 1, characterized in that, The end face of the positioning base also has a protective plate to protect the electric lead screw.