Overwinding protection device for mixed well
By designing an overwinding protection device in the mixing well hoisting system that adapts to the cage and skip hoisting mode, the problem of damage to the cage and skip overwinding protection devices is solved, and the hoisting safety and efficiency are improved.
Patent Information
- Application Number
- CN202421767709.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In the existing mixing well hoisting system, the overwinding protection devices of the cage and the skip are easily damaged during mixing hoisting, affecting the safety performance.
A device for protecting a mixing well from overwinding is designed, which includes a mounting plate, a cage travel switch and a drive assembly. By modifying the extension and retraction mechanism of the cage travel switch, the device can be adapted to the lifting modes of the cage and the skip respectively to avoid damage.
It effectively avoids the damage of the skip to the cage travel switch parts, improves the lifting safety and efficiency, reduces manpower consumption, and ensures the stability and safety of the device.
Smart Images
Figure CN223303944U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of mining technology, and in particular to an overwinding protection device for a mixed well. Background Art
[0002] Mine shaft hoisting is the vital passage connecting the surface and underground of the well. The hybrid shaft hoisting system composed of a cage and a skip is a shaft hoisting system that combines the advantages of both cage hoisting and skip hoisting. It can not only lift ore and waste rock, but also lift personnel, materials and equipment, which can effectively reduce the operating cost of the shaft hoisting system.
[0003] Overwind protection means that when the hoisting container exceeds the normal stop position (or vehicle discharge platform) by 0.5 meters, the power must be automatically cut off and the safety gate must be braked. In reality, when hoisting a cage and skip in a mixed well, the overwind position on the cage side must be equal to the upper and lower overwind positions of the skip. Otherwise, normal hoisting will not occur. As a result, when the cage is hoisted (especially when hoisting personnel), the final terminal stop position is more than 20 meters above the wellhead (normal position for people to get on and off). When a hoisting fault (PG) occurs and the hoist exceeds the terminal platform by 0.5 meters, the hoist does not stop until it reaches the so-called upper overwind (i.e., when the skip is overwinding below), the power is cut off and the hoist stops. Or, the distance from the wellhead to the upper overwind section is too high, causing an accident.
[0004] Regarding the above-mentioned related technologies, since the wellhead positions corresponding to the cage and the skip are different, the limit switches are also installed at different positions of the hoist bracket. When the mixed well skip is lifted normally, it will touch the limit switch corresponding to the cage lifting method, which can easily cause damage to the control rod and affect the safety performance of the device. Utility Model Content
[0005] In order to improve the safety performance of cage hoisting overwinding, the present application provides an overwinding protection device for a mixing well.
[0006] The present application provides an overwinding protection device for a mixed well, which adopts the following technical solutions:
[0007] A mixing well overwinding protection device includes a mounting plate arranged on a hoist bracket, a cage travel switch for controlling the lifting of the cage, and a drive assembly for controlling the extension and retraction of the cage travel switch. The drive assembly and the cage travel switch are both arranged on the upper end surface of the mounting plate.
[0008] By adopting the above technical solution, the cage travel switch is modified. When the mixing well adopts the cage lifting method, the cage travel switch component is extended, and the cage travel switch component plays an over-winding protection role. When the skip lifting method is used, the cage travel switch component is retracted, which does not affect the normal lifting of the skip and effectively avoids the skip from causing damage to the cage travel switch component.
[0009] Optionally, the cage travel switch includes a connecting frame and a control rod, the connecting frame is vertically arranged on one side of the drive assembly, the control rod is located on the side of the connecting frame away from the drive assembly, the control rod is hinged to the connecting frame, and a connecting spring is provided on the outside of the connecting frame, one end of the connecting spring is connected to the connecting frame, and the other end is connected to the control rod, and a control line for controlling the lifting of the cage is connected inside the control rod.
[0010] By adopting the above technical solution, when the cage is lifted, the cage will drive the control rod to move, allowing the staff to obtain the data transmitted by the control line and then observe the status of the control rod, thereby controlling the braking of the cage and fixing its status through the connecting spring. When the cage is lowered, the cage will drive the control rod to move and reset it, and fix its status through the connecting spring. This is easy to understand and implement, and is conducive to improving work efficiency.
[0011] Optionally, the control rod includes a straight rod and a cross rod, one end of the straight rod is fixedly connected to one end of the cross rod and the straight rod and the cross rod are arranged perpendicular to each other, the connection between the straight rod and the cross rod is hinged at the center position of the connecting frame, the control line is located in the straight rod, one end of the connecting spring is connected to the connecting frame, and the other end is connected to the straight rod. When the overwinding brake is applied on the tank cage, the straight rod is arranged parallel to the connecting frame.
[0012] By adopting the above technical solution, when the cage is lifted, the cage will drive the straight rod of the control rod to move upward. The staff can observe the status of the control rod by obtaining the data transmitted by the control line, thereby controlling the braking of the cage and fixing its status through the connecting spring. When the cage is lowered, the cage will drive the cross bar of the control rod to move downward to reset it, and fix its status through the connecting spring, so that the straight rod and the cross bar each perform their respective functions and make the structure clearer.
[0013] Optionally, the drive assembly includes a fixed frame and an electric push rod, two fixed frames are provided and the fixed frames are vertically arranged on the upper end surface of the mounting plate, the two fixed frames are both made of I-beams and are arranged along the length direction of the mounting plate, the electric push rod is horizontally arranged between the two fixed frames, and the piston rod of the electric push rod passes through the fixed frame and is fixedly connected to the connecting frame.
[0014] By adopting the above technical solution, when it is necessary to control the extension or retraction of the cage travel switch, the staff starts the electric push rod, and the electric push rod drives the connecting frame to move horizontally, thereby driving the extension or retraction of the cage travel switch, realizing automatic control, reducing manpower consumption, and helping to improve work efficiency.
[0015] Optionally, two linkage rods and a linkage plate are further provided between the two fixed frames, the linkage plate is vertically arranged on the outside of the fixed frame, the linkage plate is located on the side of the fixed frame away from the connecting frame, the two ends of the electric push rod are respectively fixedly connected to the two fixed frames, the piston rod of the electric push rod passes through the fixed frame and is fixedly connected to the linkage plate, the two linkage rods are respectively horizontally arranged above and below the electric push rod, and the two linkage rods are both passed through the two fixed frames, one end of the linkage rod is fixedly connected to the connecting frame, and the other end is fixedly connected to the linkage plate.
[0016] By adopting the above technical solution, when the electric push rod drives the control rod to move, the staff starts the electric push rod, the electric push rod drives the linkage plate to move, the movement of the linkage plate drives the linkage rods above and below the electric push rod to move, and then drives the cage travel switch to move.
[0017] Optionally, the fixing frames are all I-beams.
[0018] By adopting the above technical solution, the movement process of the electric push rod driving the linkage rod and the linkage plate is made more compact and the structure is clear.
[0019] Optionally, the distance between the two linkage rods and the electric push rod is consistent.
[0020] By adopting the above technical solution, the linkage rod moves more smoothly under the action of the equidistantly set limiters, which is conducive to improving the stability of the structure.
[0021] Optionally, both ends of the two linkage rods are provided with limit sleeves, the limit sleeves are horizontally arranged between the two fixing frames, the ends of the limit sleeves close to the fixing frames are fixedly connected to the fixing frames, and the linkage rods are slidably connected to the limit sleeves.
[0022] By adopting the above technical solution and providing the limiting sleeve, the moving direction of the linkage rod is further limited, thereby preventing the linkage rod from shaking during the movement, which is beneficial to improving the stability of the device.
[0023] Optionally, a control block for controlling the forward and backward movement of the electric push rod is connected to the outer side of the electric push rod.
[0024] By adopting the above technical solution, when the electric push rod needs to be driven to move, the staff controls the electric push rod through the control program of the control block to ensure the accuracy of its movement, which is conducive to improving the protection function of the protection device.
[0025] Optionally, an in-position switch and a out-position switch are respectively provided on both sides of the fixing frame for braking the linkage rod.
[0026] By adopting the above technical solution, when the linkage plate moves into position, it will touch the in-position switch or the out-position switch, thereby stopping the movement, which can avoid damage to the device caused by excessive movement and is conducive to improving the safety of the device.
[0027] In summary, this application includes at least one of the following beneficial technical effects:
[0028] 1. The control rod is modified by setting a mounting plate, a cage travel switch and a drive assembly. When the mixing well adopts the cage lifting method, the cage travel switch is extended, and the cage travel switch plays an over-winding protection role. When the skip lifting method is used, the cage travel switch is retracted, which does not affect the normal lifting of the skip and effectively prevents the skip from causing damage to the cage travel switch. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a schematic diagram of the connection relationship between the overwinding protection device and the mixing well hoist bracket.
[0030] Figure 2 It is a structural schematic diagram highlighting the overwinding protection device in an embodiment of the present application.
[0031] Explanation of the accompanying reference numerals: 100, hoist bracket; 1, mounting plate; 11, mounting hole; 12, sensor switch; 2, cage travel switch; 21, connecting frame; 22, control rod; 221, straight rod; 222, cross bar; 23, connecting spring; 3, driving assembly; 31, fixing frame; 32, electric push rod; 33, linkage plate; 34, linkage rod; 35, limit sleeve. DETAILED DESCRIPTION
[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.
[0033] The embodiment of the present application discloses an overwinding protection device for a mixing well.
[0034] Reference Figure 1 and Figure 2 A device for protecting a mixing well from overwinding includes a mounting plate 1, a cage travel switch 2, and a drive assembly 3. The mounting plate 1 is mounted on a hoist support 100. The cage travel switch 2 and the drive assembly 3 are connected to the mounting plate 1, respectively. The cage travel switch 2 is connected to the drive assembly 3. The mounting plate 1 supports the cage travel switch 2 and the drive assembly 3. The cage travel switch 2 controls the cage hoisting, while the drive assembly 3 controls the extension and retraction of the cage travel switch 2.
[0035] Reference Figure 1 and Figure 2The mounting plate 1 is provided with a mounting hole 11 for connecting with the hoist bracket 100. A sensor switch 12 is provided 40 cm above the wellhead parking position of the hoist bracket 100. The staff connects the mounting plate 1 with the hoist bracket 100 through the mounting hole 11 to ensure the stability of the connection, which is conducive to improving the stability of the device. The original skip loading point test winding is changed to the cage rising 40 cm at the wellhead horizontal position to wind, reducing the winding test distance per shift, saving lifting time, increasing the main shaft lifting efficiency, and realizing mechanical winding at close range at the wellhead, making personnel lifting safer.
[0036] Reference Figure 1 and Figure 2 The cage travel switch 2 includes a connecting frame 21 and a control rod 22. One side of the connecting frame 21 is connected to the drive assembly 3, and the other side is hinged to the control rod 22. Connecting springs 23 are provided on both sides of the connecting frame 21. One end of the connecting spring 23 is connected to the connecting frame 21, and the other end is connected to the control rod 22. A control line for controlling the lifting of the cage is connected inside the control rod 22.
[0037] Reference Figure 1 and Figure 2 When the cage is lifted, the cage drives the straight rod 221 of the control rod 22 to move upward. The staff observes the state of the control rod 22 by obtaining the data transmitted by the control line, thereby controlling the braking of the cage and fixing its state through the connecting spring 23. When the cage is lowered, the cage drives the cross bar 222 of the control rod 22 to move downward to reset it, and fixes its state through the connecting spring 23. This is easy to understand and implement, and is conducive to improving work efficiency.
[0038] Reference Figure 1 and Figure 2 The cam 33 is fixed on the upper and lower sides of the cam 33, and the cam 33 is fixed on the upper and lower sides of the cam 33.
[0039] Reference Figure 1and Figure 2 When the linkage plate 33 moves into place, it will touch the in-position switch or the out-position switch, thereby stopping the movement, which can avoid damage to the device caused by excessive movement, which is beneficial to improving the safety of the device. When it is necessary to control the cage stroke switch member 2 to extend or retract, the staff controls the electric push rod 32 through the control program of the control block. The electric push rod 32 drives the linkage plate 33 to move, and the movement of the linkage plate 33 drives the linkage rod 34 above and below the electric push rod 32 to move, and under the limiting action of the linkage rod 34, its movement process is more stable, and then drives the control rod 22 on the connecting frame 21 to move, controlling its extension and retraction, realizing automatic control, reducing manpower consumption, and improving work efficiency.
[0040] Reference Figure 1 and Figure 2 Both ends of the linkage rod 34 are provided with limiting sleeves 35. The limiting sleeves 35 are located in the fixing frame 31 and are fixedly connected to the fixing frame 31. The limiting sleeves 35 are arranged horizontally and are slidably connected to the linkage rod 34. The provision of the limiting sleeves 35 further limits the movement direction of the linkage rod 34, preventing the linkage rod 34 from shaking during movement, which is conducive to improving the stability of the device.
[0041] The implementation principle of the over-winding protection device for a mixing well in an embodiment of the present application is as follows: the control rod 22 is modified. When the mixing well adopts the cage lifting method, the staff drives the electric push rod 32 to extend, driving the cage travel switch member 2 to extend, and the cage travel switch member 2 plays an over-winding protection role. When the skip lifting method is used, the staff drives the electric push rod 32 to retract, driving the cage travel switch member 2 to retract, which does not affect the normal lifting of the skip and effectively prevents the skip from causing damage to the cage travel switch member 2.
[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An overwinding protection device for a mixing well, characterized in that: The invention comprises a mounting plate (1) arranged on a hoist support (100), a cage travel switch (2) for controlling the lifting of the cage, and a drive assembly (3) for controlling the extension and retraction of the cage travel switch (2); the drive assembly (3) and the cage travel switch (2) are both arranged on the upper end surface of the mounting plate (1).
2. The overwinding protection device for a mixing well according to claim 1, characterized in that: The cage travel switch member (2) comprises a connecting frame (21) and a control rod (22), wherein the connecting frame (21) is vertically arranged on one side of the driving assembly (3), and the control rod (22) is located on a side of the connecting frame (21) away from the driving assembly (3). The control rod (22) is hinged to the connecting frame (21), and a connecting spring (23) is provided on the outer side of the connecting frame (21). One end of the connecting spring (23) is connected to the connecting frame (21), and the other end is connected to the control rod (22). A control line for controlling the lifting of the cage is connected inside the control rod (22).
3. The overwinding protection device for a mixing well according to claim 2, characterized in that: The control rod (22) comprises a straight rod (221) and a cross rod (222). One end of the straight rod (221) is fixedly connected to one end of the cross rod (222). The straight rod (221) and the cross rod (222) are arranged perpendicular to each other. The connection between the straight rod (221) and the cross rod (222) is hinged to the center position of the connecting frame (21). The control line is located in the straight rod (221). One end of the connecting spring (23) is connected to the connecting frame (21), and the other end is connected to the straight rod (221). When the cage is overwinding and braking, the straight rod (221) and the connecting frame (21) are arranged in parallel.
4. The overwinding protection device for a mixing well according to claim 2, characterized in that: The driving assembly (3) comprises a fixing frame (31) and an electric push rod (32). The fixing frames (31) are provided with two and the fixing frames (31) are vertically arranged on the upper end surface of the mounting plate (1). The two fixing frames (31) are arranged along the length direction of the mounting plate (1). The electric push rod (32) is horizontally arranged between the two fixing frames (31). The piston rod of the electric push rod (32) passes through the fixing frame (31) and is fixedly connected to the connecting frame (21).
5. The overwinding protection device for a mixing well according to claim 4, characterized in that: Two linkage rods (34) and a linkage plate (33) are further provided between the two fixing frames (31). The linkage plate (33) is vertically arranged on the outside of the fixing frame (31). The linkage plate (33) is located on the side of the fixing frame (31) away from the connecting frame (21). The two ends of the electric push rod (32) are respectively fixedly connected to the two fixing frames (31). The piston rod of the electric push rod (32) passes through the fixing frame (31) and is fixedly connected to the linkage plate (33). The two linkage rods (34) are respectively horizontally arranged above and below the electric push rod (32). The two linkage rods (34) are both provided on the two fixing frames (31). One end of the linkage rod (34) is fixedly connected to the connecting frame (21), and the other end is fixedly connected to the linkage plate (33).
6. The overwinding protection device for a mixing well according to claim 4, characterized in that: The fixing frames (31) are all I-beams.
7. The overwinding protection device for a mixing well according to claim 5, characterized in that: The distance between the two linkage rods (34) and the electric push rod (32) is consistent.
8. The overwind protection device for a mixing well according to claim 5, characterized in that: Both ends of the two linkage rods (34) are sleeved with limiting sleeves (35), the limiting sleeves (35) are horizontally arranged between the two fixing frames (31), one end of the limiting sleeve (35) close to the fixing frame (31) is fixedly connected to the fixing frame (31), and the linkage rod (34) is slidably connected to the limiting sleeve (35).
9. The overwind protection device for a mixing well according to claim 4, characterized in that: The outer side of the electric push rod (32) is connected to a control block for controlling the electric push rod (32) to move forward and backward.
10. The overwinding protection device for a mixing well according to claim 4, characterized in that: Both sides of the fixing frame (31) are respectively provided with an advance position switch and a retreat position switch for braking the linkage rod (34).