An automatic balancing construction platform for a shaft

Abstract

An automatic balancing construction platform for vertical shafts includes a base and a top plate. Multiple lifting lugs are evenly fixed to the top of the top plate. Multiple connecting rods are evenly fixed between the top plate and the base. Two symmetrically arranged extension plates (first type) are slidably disposed within the base. A drive assembly is mounted on the base to drive the two extension plates to move towards or away from each other. Two symmetrically embedded extension plates (second type) are slidably engaged with their corresponding extension plates (first type). Two symmetrically arranged transmission assemblies are disposed between the two extension plates (first type), and these transmission assemblies are used to drive the corresponding extension plates (second type) to extend or retract. The extended plates, when extended, can serve as an operating platform for construction personnel, shortening the working distance between personnel and the shaft wall and improving the convenience of operation during construction.

Description

Technical Field

[0001] This invention relates to the field of shaft construction technology, and more specifically to an automatic balancing construction platform for shafts. Background Technology

[0002] A vertical shaft is a well-like, tubular structure with upright walls. During its excavation and widening construction, such as... Figure 1 As shown, existing technologies mostly use welded ribbed steel mesh or steel plates as the main structure of the construction platform, while relying on this platform to cover and protect the pilot shaft opening. This structural scheme can provide a stable downhole working face, meet the needs of personnel and equipment going downhole, and form a reliable fall protection barrier to prevent personnel from falling into the pilot shaft and causing safety accidents.

[0003] For example, patent document CN219138308U, entitled "A Platform for Shaft Expansion Construction," includes a support base for shaft construction and a dual-axis motor fixed within the support base. A protective railing is fixedly connected to the surface of the support base, and a fixing frame is fixedly connected to the surface of the protective railing. Guide screws are fixedly connected to both output ends of the dual-axis motor. A support sleeve is threaded onto the outer wall of the guide screw. A support column is slidably connected inside the support sleeve. A positioning groove is formed on the end face of the support column outside the support sleeve, and a positioning block is inserted into the positioning groove. A mounting frame is installed on the end face of the positioning block outside the support column, and a support wheel is rotatably connected within the mounting frame. A fixing frame is fixedly connected to the surface of the support column. The dual-axis motor drives the guide screws to rotate, thereby moving the support sleeve and causing the two support wheels to fit against the outer walls of the shaft on both sides.

[0004] However, in the process of using the above-mentioned literature, although the support wheels are attached to the outer walls of both sides of the shaft and can provide stable support for the support base, there is a certain distance between the support base and the outer wall of the shaft, which causes the construction personnel to be too far away from the shaft wall when working, reducing the convenience of operation. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic balancing construction platform for vertical shafts. This platform solves the technical problem mentioned in the background art, where a certain distance exists between the support base and the outer wall of the vertical shaft, resulting in construction workers being too far from the shaft wall during operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An automatic balancing construction platform for vertical shafts includes a base and a top plate. Multiple lifting lugs are uniformly fixedly installed on the top of the top plate. Multiple connecting rods are uniformly fixedly installed between the top plate and the base. Two symmetrically arranged extension plates are slidably installed inside the base. A drive assembly is provided on the base to drive the two extension plates to move towards or away from each other. Two symmetrically embedded extension plates are provided between the two extension plates, and the extension plates slide with their corresponding extension plates. Two symmetrically arranged transmission assemblies are provided between the two extension plates, and the two transmission assemblies are respectively used to drive the corresponding extension plates to extend or retract.

[0007] Furthermore, the drive assembly includes a motor fixedly mounted on the top of the base and a double-ended threaded rod rotatably mounted inside the base. The two sides of the double-ended threaded rod are respectively rotatably inserted into the corresponding extension plate, and the double-ended threaded rod is threadedly connected to the corresponding extension plate. A bevel gear is fixedly mounted on the output end of the motor, and a bevel gear is fixedly mounted on the double-ended threaded rod, with the bevel gear meshing with the bevel gear.

[0008] Furthermore, the transmission assembly includes two hinge rods arranged in a figure-eight shape. One end of each hinge rod is hinged to a corresponding extension plate one, and the other end of each hinge rod is hinged to a corresponding extension plate two.

[0009] Furthermore, both the base and the top plate are cylindrical structures, and both the base and the top plate are provided with multiple support wheels along their circumference.

[0010] Furthermore, both the base and the top plate are provided with multiple mounting slots arranged in a circular array. Telescopic columns are slidably arranged in the mounting slots. One end of the telescopic column extends to the outside of the mounting slot and is fixedly connected to the corresponding support wheel. A spring is fixedly connected between the other end of the telescopic column and the mounting slot.

[0011] Furthermore, both the base and the top plate are equipped with traction components that drive multiple support wheels to retract synchronously.

[0012] Furthermore, the traction assembly includes a second motor and a drive wheel fixedly mounted at its output end. A receiving groove is provided in the center of the base. The second motor is fixedly mounted at the center of the receiving groove. Multiple winding rollers are arranged in a circumferential array in the receiving groove. A driven wheel is coaxially fixedly mounted on the top of the winding roller. The driven wheel meshes with the drive wheel. A traction rope is wound on the winding roller. The traction rope extends into the corresponding mounting groove and is fixedly connected to the telescopic column.

[0013] Furthermore, the support wheels on the base are fixedly provided with fixing plates, which respectively abut against and cooperate with the corresponding extension plate one and extension plate two.

[0014] Furthermore, fences are fixedly installed at the edges of the two extended plates that are far apart from each other.

[0015] Furthermore, a bracket is fixedly installed on the top of the base, and a toolbox is fixedly installed on the top of the bracket.

[0016] The beneficial effects of this invention are as follows: Two symmetrically arranged extension plates (first type) are slidably disposed within the base, and two symmetrically embedded extension plates (second type) are embedded between the two extension plates (first type). Two symmetrically arranged transmission components are disposed between the two extension plates (first type). Therefore, when the construction platform is stationed at the designated position in the shaft for operation, and the two extension plates need to be unfolded, the drive components are activated to move the two extension plates (first type) in opposite directions, thereby unfolding them. Simultaneously, the transmission components push the corresponding extension plates (second type) outwards. The extension of the extension plates (second type) further expands the effective working area of ​​the construction platform, allowing the unfolded extension plates to serve as an operating platform for construction personnel, shortening the working distance between construction personnel and the shaft wall, and improving the convenience of operation and construction. Attached Figure Description

[0017] Figure 1 This is a front view of an existing vertical shaft construction platform. Figure 2 This is a perspective view of the present invention; Figure 3 This is a perspective view of the base of the present invention; Figure 4 For the present invention Figure 3 A sectional view; Figure 5 This is a perspective view of the base portion of the present invention; Figure 6 For the present invention Figure 5 A sectional view; Figure 7 This is a perspective view of the traction component of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point A.

[0018] Explanation of reference numerals in the attached drawings: 1. Base; 2. Top plate; 3. Connecting rod; 4. Lifting lug; 5. Extension plate one; 6. Slide groove; 7. Sliding block; 8. Motor one; 9. Double-ended threaded rod; 10. Bevel gear one; 11. Bevel gear two; 12. Extension plate two; 13. Guide block; 14. Guide groove; 15. Hinge rod; 16. Support wheel; 17. Mounting groove; 18. Telescopic column; 19. Spring; 20. Motor two; 21. Drive wheel; 22. Receiving groove; 23. Winding roller; 24. Driven wheel; 25. Traction rope; 26. Fixing plate; 27. Slot; 28. Fence; 29. ​​Toolbox. Detailed Implementation

[0019] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 2-8 As shown, an automatic balancing construction platform for a vertical shaft includes a base 1 and a top plate 2, both of which are cylindrical structures. Multiple connecting rods 3 are evenly fixedly installed between the top plate 2 and the base 1, arranged in a circular array. One end of each connecting rod 3 is fixedly connected to the base 1, and the other end is fixedly connected to the top plate 2. Multiple lifting lugs 4 are fixedly installed at the top edge of the top plate 2, also arranged in a circular array. These lugs 4 are connected to the steel ropes of an external winch within the shaft, facilitating the lifting and lowering of the construction platform within the shaft.

[0021] The base 1 has an annular cavity, within which two symmetrically arranged extension plates 5, each with a semi-circular structure, are slidably mounted. Symmetrically arranged radial grooves 6 are formed within the cavity, and sliders 7 are slidably mounted within these grooves. The tops of the sliders 7 are fixedly connected to their respective extension plates 5. A drive assembly for driving the two extension plates to move towards or away from each other is mounted on the base 1. The drive assembly includes a motor 8 fixedly mounted on the top of the base 1 and a double-threaded rod 9 rotatably mounted within the base 1, arranged radially. The two sides of the double-threaded rod 9 rotatably pass through the corresponding extension plates 5, with opposite thread directions on both sides, and are threadedly connected to their respective extension plates 5. The output end of the motor 8 extends into the cavity and is fixedly fitted with a bevel gear 10. A second bevel gear 11 is fixedly fitted around the outer periphery of the double-threaded rod 9, meshing with the first bevel gear 10.

[0022] When it is necessary to unfold the two extension plates 5, start motor 8. Motor 8 drives bevel gear 10 to rotate, and bevel gear 10 drives double-threaded rod 9 to rotate through bevel gear 11. Double-threaded rod 9 drives the two extension plates 5 to move in opposite directions, thereby unfolding the two extension plates 5. The unfolded extension plates 5 can be used as an operating platform for construction personnel, shortening the working distance between construction personnel and the shaft wall and improving the convenience of operation.

[0023] Two extension plates 12 are symmetrically embedded between two extension plates 1 5, and the extension plates 12 slide in engagement with their corresponding extension plates 1 5. Each of the two extension plates 1 5 has a symmetrical clearance groove on one side, and the two sides of the extension plates 12 are located within the corresponding clearance grooves and slide in engagement with them. A guide block 13 is fixedly installed at the bottom of the extension plate 1, and guide grooves 14 are symmetrically arranged radially within the cavity of the base 1, with the guide grooves 14 slidingly connected to the corresponding guide blocks 13. Two symmetrically arranged transmission assemblies are installed between the two extension plates 1 5, and these two transmission assemblies are used to drive the corresponding extension plate 12 to extend or retract. The transmission assemblies include two hinge rods 15, arranged in a V-shape, with one end of each hinge rod 15 hinged to the corresponding extension plate 1 5 and the other end hinged to the corresponding extension plate 12.

[0024] When the two extension plates 5 extend outward, the corresponding extension plate 12 is pushed outward along the clearance groove by the hinge transmission action of the corresponding hinge rod 15. The extension of the extension plate 12 can further expand the effective working area of ​​the construction operation platform and improve the flexibility and convenience of construction operations.

[0025] Both the base 1 and the top plate 2 are equipped with multiple support wheels 16 along their circumference. Each support wheel 16 includes a U-shaped frame and rollers rotatably mounted within the U-shaped frame. Both the base 1 and the top plate 2 are provided with multiple mounting slots 17 arranged in a circular array along the circumference, with the mounting slots 17 arranged radially along the base 1. A telescopic column 18 is slidably mounted within the mounting slot 17. One end of the telescopic column 18 extends to the outside of the mounting slot 17 and is fixedly connected to the corresponding support wheel 16. A spring 19 is fixedly connected between the other end of the telescopic column 18 and the bottom of the mounting slot 17.

[0026] When the construction platform is raised and lowered inside the shaft, the support wheels 16 fit tightly against the side wall of the shaft, providing stable support for the base 1 and the top plate 2, effectively reducing the swaying amplitude of the construction platform during operation. Simultaneously, during the raising and lowering process, the elasticity of the spring 19 drives the telescopic column 18 and the support wheels 16 to adaptively extend and retract, making the support wheels 16 move more smoothly and stably along the uneven side wall of the shaft, thereby achieving the automatic balancing function of the construction platform.

[0027] Both the base 1 and the top plate 2 are equipped with traction assemblies that drive multiple support wheels 16 to retract synchronously. The traction assembly includes a second motor 20 and a drive wheel 21 fixedly mounted at its output end. A receiving groove 22 is formed along the axial direction at the center of the base 1, and the second motor 20 is fixedly mounted at the center of the bottom of the receiving groove 22. Multiple winding rollers 23 are arranged in a circumferential array at the bottom of the receiving groove 22. Each winding roller 23 includes a rotating shaft and a roller body fixedly sleeved around the outer circumference of the rotating shaft. The winding rollers 23 are vertically arranged, and their rotating shafts are rotatably connected to the bottom of the receiving groove 22. A driven wheel 24 is coaxially fixedly sleeved at the top of the rotating shaft of the winding roller 23. The driven wheel 24 meshes with the drive wheel 21, and both the drive wheel 21 and the driven wheel 24 are gears. A traction rope 25, which is a steel wire rope, is wound around the outer circumference of the winding roller 23. The traction rope 25 extends into the corresponding mounting groove 17 and is fixedly connected to the end face of the telescopic column 18.

[0028] When multiple support wheels 16 need to be retracted synchronously, motor 20 is started. Motor 20 drives the drive wheel 21 to rotate, and the drive wheel 21 synchronously drives multiple driven wheels 24 to rotate. The driven wheels 24 drive the corresponding winding rollers 23 to rotate. During the rotation of the winding rollers 23, the corresponding traction ropes 25 are wound up. After the traction ropes 25 are wound up and shortened, they pull the telescopic column 18 to move inward along the mounting groove 17 and retract, thereby driving the support wheels 16 to retract synchronously. This allows for flexible adjustment of the distance between the support wheels 16 and the well wall, and also avoids interference from the support wheels 16 when the construction platform initially enters the vertical shaft, ensuring that the construction platform can smoothly enter the vertical shaft.

[0029] A fixing plate 26 is fixedly installed on the top of the U-shaped frame of the support wheel 16 installed on the base 1. The outer periphery of the extension plate 1 5 and the extension plate 2 12 are provided with slots 27 that are adapted to the top of the fixing plate 26. The fixing plate 26 abuts against the slots 27 of the corresponding extension plate 1 5 and extension plate 2 12 respectively.

[0030] When the construction platform is positioned at the designated location in the shaft and operations commence, the extension plates 1-5 and 2-12 unfold, and their outer slots 27 engage with the corresponding fixed plates 26. Taking well wall drilling as an example, when the construction personnel apply force, a reverse force is generated on the platform. Without this engagement and limiting structure, the support wheel 16 on the force-bearing side will compress the spring 19 and retract, causing the construction platform to shift in the opposite direction of the force, resulting in fluctuations in the distance between the construction personnel and the well wall, thereby reducing the stability of the drilling operation. The engagement structure between the slots 27 of extension plates 1-5 and 2-12 and the corresponding fixed plates 26 can limit the unilateral shift of the platform and improve the stability during well wall drilling operations.

[0031] Both extension plates 12 have guardrails 28 welded to their opposite edges for safety protection of construction workers. When the two extension plates 12 move in opposite directions and fully extend, the two guardrails 28 move away from each other synchronously, creating a large gap between them. A flexible protective net can be installed between the two guardrails 28 to adapt to changes in the gap, thus providing comprehensive protection for construction workers operating on the extension plate 12.

[0032] A bracket is fixedly installed at the top center of the base 1, and a toolbox 29 is fixedly installed on the top of the bracket for storing construction tools.

[0033] Working principle: In use, the platform is connected to the steel rope of the winch outside the shaft via the lifting lug 4. Then, the construction platform is placed inside the shaft, and the winch drives the construction platform to rise and fall inside the shaft via the steel rope.

[0034] Motor 20 is started, which drives the drive wheel 21 to rotate. The drive wheel 21 synchronously drives multiple driven wheels 24 to rotate, and the driven wheels 24 drive the corresponding winding rollers 23 to rotate. During the rotation of the winding rollers 23, the corresponding traction ropes 25 are unwound. After the traction ropes 25 extend, they, in conjunction with the restoring action of the spring 19, drive the telescopic column 18 to extend, thereby causing the support wheel 16 to fit against the side wall of the shaft, forming a stable support for the base 1 and the top plate 2, effectively reducing the swaying amplitude during the operation of the construction platform. At the same time, during the lifting process, the elasticity of the spring 19 can drive the telescopic column 18 and the support wheel 16 to adaptively extend and retract, making the support wheel 16 move more smoothly and stably along the uneven side wall of the shaft.

[0035] When the construction platform is positioned at the designated location in the shaft and operations commence, and the two extension plates 5 need to be deployed, motor 8 is started. Motor 8 drives bevel gear 10 to rotate, which in turn drives double-threaded rod 9 through bevel gear 11. Double-threaded rod 9 then causes the two extension plates 5 to move in opposite directions, thereby deploying them. The deployed extension plates 5 can then serve as an operating platform for construction personnel, reducing the working distance between personnel and the shaft wall and improving operational convenience.

[0036] Simultaneously, through the hinged transmission action of the corresponding hinge rod 15, the corresponding extension plate 12 is pushed outward along the clearance groove. The extension of the extension plate 12 can further expand the effective working area of ​​the construction operation platform and improve the flexibility and convenience of construction operations.

[0037] Furthermore, when extension plate 5 and extension plate 12 are unfolded, their outer grooves 27 form an abutment fit with the corresponding fixed plates 26. When the construction personnel apply force, a reverse force is generated on the platform. Without this abutment limiting structure, the support wheel 16 on the force-bearing side will compress the spring 19 and retract, causing the construction platform to shift in the opposite direction of the force, resulting in fluctuations in the distance between the construction personnel and the well wall, thereby reducing the stability of the drilling operation. The abutment fit structure between the grooves 27 of extension plate 5 and extension plate 12 and the corresponding fixed plates 26 can limit the unilateral shift of the platform and improve the stability of the well wall drilling operation.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A vertical shaft automatic balance construction platform, comprising a base (1) and a top plate (2), the top of the top plate (2) is uniformly provided with a plurality of lifting lugs (4), and a plurality of connecting rods (3) are uniformly arranged between the top plate (2) and the base (1), characterized in that, Two symmetrically arranged extension plates (5) are slidably arranged inside the base (1). A drive assembly for driving the two extension plates to move towards or away from each other is provided on the base (1). Two extension plates (12) are symmetrically embedded between the two extension plates (5), and the extension plates (12) slide with the corresponding extension plates (5). Two symmetrically arranged transmission assemblies are provided between the two extension plates (5). The two transmission assemblies are respectively used to drive the corresponding extension plates (12) to extend or retract.

2. The shaft counterbalance construction platform according to claim 1, wherein, The drive assembly includes a motor (8) fixedly mounted on the top of the base (1) and a double-ended threaded rod (9) rotatably mounted inside the base (1). The two sides of the double-ended threaded rod (9) are respectively rotatably mounted inside the corresponding extension plate (5), and the double-ended threaded rod (9) is threadedly connected to the corresponding extension plate (5). A bevel gear (10) is fixedly mounted on the output end of the motor (8), and a bevel gear (11) is fixedly mounted on the double-ended threaded rod (9). The bevel gear (11) meshes with the bevel gear (10).

3. The shaft counterbalance construction platform according to claim 1, wherein, The transmission assembly includes two hinge rods (15), which are arranged in a figure-eight shape. One end of the hinge rod (15) is hinged to the corresponding extension plate one (5), and the other end of the hinge rod (15) is hinged to the corresponding extension plate two (12).

4. The shaft counterbalance construction platform of claim 1, wherein, Both the base (1) and the top plate (2) are cylindrical structures, and both the base (1) and the top plate (2) are provided with multiple support wheels (16) along their circumference.

5. The shaft counterbalance construction platform according to claim 4, wherein, Both the base (1) and the top plate (2) are provided with multiple mounting slots (17) arranged in a circular direction. A telescopic column (18) is slidably arranged in the mounting slot (17). One end of the telescopic column (18) extends to the outside of the mounting slot (17) and is fixedly connected to the corresponding support wheel (16). A spring (19) is fixedly connected between the other end of the telescopic column (18) and the mounting slot (17).

6. The shaft counterbalance construction platform according to claim 5, wherein, Both the base (1) and the top plate (2) are equipped with a traction assembly that drives multiple support wheels (16) to retract synchronously.

7. The shaft counterweight construction platform of claim 6, wherein, The traction assembly includes a second motor (20) and a drive wheel (21) fixedly installed at its output end. A receiving groove (22) is provided in the center of the base (1). The second motor (20) is fixedly installed at the center of the receiving groove (22). Multiple winding rollers (23) are arranged in a circumferential array in the receiving groove (22). A driven wheel (24) is fixedly installed on the top of the winding roller (23) coaxially. The driven wheel (24) meshes with the drive wheel (21). A traction rope (25) is wound on the winding roller (23). The traction rope (25) extends into the corresponding mounting groove (17) and is fixedly connected to the telescopic column (18).

8. The shaft counterbalance construction platform according to claim 7, wherein, The base (1) has a fixed plate (26) fixedly installed on the support wheel (16). The fixed plate (26) abuts against the corresponding extension plate one (5) and extension plate two (12).

9. The shaft counterweight construction platform of claim 1, wherein, Both of the two extension plates (5) are fixedly equipped with fences (28) at their edges that are far apart from each other.

10. The shaft counterweight construction platform of claim 1, wherein, A bracket is fixedly installed on the top of the base (1), and a toolbox (29) is fixedly installed on the top of the bracket.

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