Small-section shaft sheave platform

Abstract

The present invention discloses a sheave platform for a small-section shaft, belonging to the technical field of sheave platforms. It includes a first-layer sheave platform, a second-layer sheave platform, a first derrick support body, and a second derrick support body. At the top of the second derrick support body, a sheave platform system composed of the second-layer sheave platform, the first derrick support body, and the first-layer sheave platform is arranged successively from bottom to top. The sheave platform system includes a first-layer sheave platform and a second-layer sheave platform that rotate relative to each other by 90°. In the present invention, the hauling ropes of the lifting equipment on the first-layer sheave platform pass through the lowering area of the second-layer sheave platform, increasing the distance between each group of hauling ropes, avoiding entanglement caused by the mutual approach of the hauling ropes of each group of lifting equipment, and improving safety. Under the condition of ensuring that the sheave beams do not affect the operation of the lifting equipment, the number of sheave beams is increased, the load-bearing of each sheave beam is reduced, the deformation of the sheave beams is reduced, and the service life is extended.

Description

[0001] The present invention relates to the technical field of headframe platforms, and the disclosed content relates to a headframe platform, and more particularly to a headframe platform for a small-section shaft. Background Art

[0002] The layout of the headframe platform mainly involves properly arranging the headstocks of various suspended equipment in the well and the headstock support beams on the headframe platform, giving full play to the bearing capacity of the sinking headframe, and reasonably using the headframe structure. Most of the headframes used for small-section shafts in China are standard metal pavilion-type headframes. The headframe platform generally consists of a cross-shaped platform structure composed of four side beams and a middle main beam, and is supported by a herringbone structure.

[0003] Chinese Patent Invention with Publication No. CN101737013B discloses a double-deck headframe platform system for a sinking headframe. In order to solve the problem that at most two sets of hoisting equipment can be arranged on each headframe at the same time, a double-deck headframe platform system composed of a cross-shaped headframe platform and a mu-shaped headframe platform is provided, and the mu-shaped headframe platform is supported by an M-shaped support. The number of hoisting equipment arrangements is doubled compared with that of a single-deck headframe platform. The specification specifically describes that four sets of hoisting equipment and suspended loads are distributed on the upper and lower double-headstock platforms. Two sets of high-speed main hoisting equipment are arranged on the upper cross-shaped headframe platform, and two sets of auxiliary hoisting equipment and suspended loads are arranged on the lower mu-shaped headframe platform. The equipment on the upper cross-shaped headframe platform is hoisted by a hauling rope through the gap supported by the lower mu-shaped headframe platform.

[0004] The above-mentioned patent invention still has the following problems: (1) The distances between the hauling ropes of the four sets of hoisting equipment are too close, and they may be wound together; (2) If the M-shaped support system is arranged at both ends of the headframe platform, the support effect is poor and it cannot well relieve the deformation problem of the headframe platform beam; if it is arranged near the middle part of the beam, it affects the normal operation of the hoisting equipment. The present invention proposes a new solution to the above problems. Summary of the Invention

[0005] In order to overcome at least one of the above-mentioned disadvantages, the present invention provides a headframe platform for a small-section shaft. The object of the present invention can be achieved by adopting the following technical solutions:

[0006] A small-section shaft sheave platform, comprising a first-layer sheave platform, a second-layer sheave platform, a first derrick support body and a second derrick support body. On the top of the second derrick support body, a sheave platform system composed of the second-layer sheave platform, the first derrick support body and the first-layer sheave platform is arranged successively from bottom to top. The sheave platform system includes a first-layer sheave platform and a second-layer sheave platform that rotate relative to each other by 90°. Both the first-layer sheave platform and the second-layer sheave platform include several main beams surrounding into a mouth shape and corner nodes connecting adjacent two main beams. Inside the main beams, there is an H-shaped partition beam assembly. The H-shaped partition beam assembly includes two relatively parallel sheave beams. Between the two sheave beams, there is a support beam. Both ends of the support beam are installed on the sheave beams through second middle nodes, and both ends of the sheave beams are installed on the main beams through first middle nodes.

[0007] Preferably, a lowering area is formed by surrounding between two adjacent main beams and sheave beams, and a sheave installation area is formed by surrounding between two adjacent main beams, two sheave beams and the support beam.

[0008] Preferably, the sheave installation areas and lowering areas on the first-layer sheave platform and the second-layer sheave platform are staggered.

[0009] Preferably, the first derrick support body includes a trapezoidal support frame body connecting the first-layer sheave platform and the second-layer sheave platform and a reinforcement support frame body supporting the H-shaped partition beam assembly.

[0010] Preferably, the reinforcement support frame body is a trapezoidal reinforcement support frame body.

[0011] Preferably, trapezoidal support frame bodies are correspondingly connected between several corner nodes of the first-layer sheave platform and the second-layer sheave platform, and a reinforcement support frame body is correspondingly connected between the second middle node of the first-layer sheave platform and the corner node of the second-layer sheave platform.

[0012] Preferably, the reinforcement support frame body is an M-shaped reinforcement support frame body.

[0013] Preferably, the two upper ends of the reinforcement support frame body are connected to the second middle node of the first-layer sheave platform, the two lower ends on the outer sides of the reinforcement support frame body are connected to the corner nodes of the second-layer sheave platform, and the middle lower end of the reinforcement support frame body is connected to the support beam of the second-layer sheave platform.

[0014] Preferably, the second derrick support body includes a human-shaped support frame body and an inverted V-shaped support frame body arranged on the human-shaped support frame body to support the second-layer sheave platform.

[0015] Preferably, the top end of the inverted V-shaped support frame body is connected to the second middle node of the second-layer sheave platform, and the two bottom ends of the inverted V-shaped support frame body are connected to the human-shaped support frame body.

[0016] The beneficial technical effects of the present invention:

[0017] The double-deck sheave platform of the small-section shaft sheave platform has twice as many hoisting devices as the traditional single-deck sheave platform; compared with the sheave platform in the shape of a Chinese character "ri", each layer of the sheave platform of the present invention is symmetrically installed, and the stress is basically uniform, avoiding deformation caused by excessive load.

[0018] The hoisting devices are installed at the sheave installation area. The towing ropes of the hoisting devices on the first-layer sheave platform pass through the lowering area of the second-layer sheave platform, increasing the distance between each group of towing ropes and avoiding entanglement caused by the mutual approach of the towing ropes of each group of hoisting devices, thus improving safety.

[0019] On the premise of ensuring that the sheave beams do not affect the operation of the hoisting devices, the number of sheave beams is increased, the load-bearing of each sheave beam is reduced, the deformation of the sheave beams is reduced, and the service life is prolonged.

[0020] Give full play to the additional bearing capacity, partition the sheave platform through the sheave beams and support beams, conduct partition modular management on the hoisting devices, and make reasonable use of the space between the main beams and the secondary beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the drawings, the following contents are given by way of example and not by way of limitation:

[0022] Figure 1 Shows the overall structural schematic diagram of the first embodiment of the present invention;

[0023] Figure 2 and Figure 3 Shows the structural schematic diagram of the sheave platform of the first embodiment of the present invention;

[0024] Figure 4 Shows the overall front view structural schematic diagram of the first embodiment of the present invention;

[0025] Figure 5 Shows the overall top view structural schematic diagram of the first embodiment of the present invention;

[0026] Figure 6 and Figure 7 Shows the structural schematic diagrams of the first-layer sheave platform and the second-layer sheave platform of the first embodiment of the present invention;

[0027] Figure 8 Shows the top view structural schematic diagrams of the first-layer sheave platform and the second-layer sheave platform of the first embodiment of the present invention;

[0028] Figure 9 Shows the structural schematic diagram of the reinforcement bracket frame body of the second embodiment of the present invention;

[0029] Figure 10 Shows the structural schematic diagram of the installation of the hoisting devices on the sheave platform of the embodiment of the present invention.

[0030] In the figure: 1 is the first - layer sheave platform, 2 is the second - layer sheave platform, 3 is the first derrick support body, 4 is the second derrick support body, 5 is the main beam, 6 is the corner node, 7 is the sheave beam, 8 is the first middle node, 9 is the support beam, 10 is the second middle node, 11 is the sheave installation area, 12 is the lowering area, 31 is the trapezoidal support frame body, 32 is the reinforcement support frame body, 41 is the human - shaped support frame body, 42 is the inverted V - shaped support frame body. Specific implementation mode

[0031] In the following detailed disclosure, reference is made to the accompanying drawings. By way of illustration of a part of its features, as specific embodiments that can be implemented, these embodiments are fully described. To make the technical solutions of the present invention clearer and more definite for those skilled in the art, the described implementation modes are not limited thereto. The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings.

[0032] As Figures 1 - 5 shown, in the first embodiment, the sheave platform of the small - section shaft includes the first - layer sheave platform 1, the second - layer sheave platform 2, the first derrick support body 3 and the second derrick support body 4. At the top of the second derrick support body 4, a sheave platform system composed of the second - layer sheave platform 2, the first derrick support body 3 and the first - layer sheave platform 1 is arranged in sequence from bottom to top. The sheave platform system includes the first - layer sheave platform 1 and the second - layer sheave platform 2 that rotate relative to each other by 90°. Both the first - layer sheave platform 1 and the second - layer sheave platform 2 include several main beams 5 that enclose a mouth - shaped structure and corner nodes 6 that connect adjacent two main beams 5. Inside the main beam 5, there is an H - shaped partition beam assembly. The H - shaped partition beam assembly includes two relatively parallel sheave beams 7. Between the two sheave beams 7, there is a support beam 9. Both ends of the support beam 9 are installed on the sheave beam 7 through the second middle node 10, and both ends of the sheave beam 7 are installed on the main beam 5 through the first middle node 8.

[0033] The double - layer sheave platform of the sheave platform of the small - section shaft has twice as many hoisting devices as the traditional single - layer sheave platform; compared with the sheave platform in the shape of a Chinese character 'ri', each layer of the sheave platform of the present invention is symmetrically installed, and the force is basically uniform, avoiding deformation caused by excessive load; the hoisting devices are installed at the position of the sheave installation area 11. The traction rope of the hoisting device on the first - layer sheave platform 1 passes through the lowering area 12 of the second - layer sheave platform 2, making the distance between each group of traction ropes larger, avoiding the mutual approach and entanglement of the traction ropes of each group of hoisting devices, and improving safety; on the premise of ensuring that the sheave beam 7 does not affect the operation of the hoisting device, the number of sheave beams 7 is increased, the load - bearing of each sheave beam 7 is reduced, the deformation of the sheave beam 7 is reduced, and the service life is extended; the additional bearing capacity is fully utilized. The sheave platform is partitioned by the sheave beam 7 and the support beam 9, and the hoisting devices are managed in a modular manner by partition, and the space between the main beam and the secondary beam is reasonably used.

[0034] By increasing the number of secondary beams, reducing the load-bearing capacity of each secondary beam, evenly distributing the weight of the crown block, and reducing the situation where multiple groups of crown blocks share a single support beam 9, although the number of crown block beams 7 is increased, the H-shaped partition beam assembly composed of two crown block beams 7 and one support beam 9 does not affect the normal operation of the hoisting equipment. The steel wire ropes of the hoisting equipment installed on the first crown block platform 1 can be lowered and operate normally through the lowering area 12 of the second crown block platform 2, and it can also increase the distance between the steel wire ropes of each group of crown blocks, making the steel wire ropes approach the corner nodes 6 of each crown block platform, thus avoiding the mutual entanglement between the steel wire ropes of each group of hoisting equipment.

[0035] As Figure 2 and Figure 3 shown, an adjacent main beam 5 and crown block beam 7 enclose a lowering area 12, and an adjacent two main beams 5, two crown block beams 7 and a support beam 9 enclose a crown block installation area 11. The crown block installation areas 11 and lowering areas 12 on the first crown block platform 1 and the second crown block platform 2 are staggered.

[0036] As Figure 2 , Figure 3 and Figure 5 shown. The H-shaped partition beam assembly is installed on the square main beam assembly after rotating 45°, and the first crown block platform 1 and the second crown block platform 2 are installed after rotating 90° relatively, ensuring that the crown block installation area 11 of the first crown block platform 1 is directly above the lowering area 12 of the second crown block platform 2. The steel wire ropes of the hoisting equipment installed on the first crown block platform 1 can be lowered and operate normally through the lowering area 12 of the second crown block platform 2. The size of the first crown block platform 1 is less than or equal to that of the second crown block platform 2, reducing the center of gravity height of the derrick and improving the stability of the derrick.

[0037] As Figure 4 and Figure 5 shown, the reinforcement bracket frame 32 is located between the two crown block installation areas 11 of the first crown block platform 1 and is installed along the direction of the support beam 9, without affecting the operation of the steel wire ropes of the hoisting equipment on the first crown block platform 1.

[0038] There are two options for the reinforcement bracket frame 32, one is trapezoidal and the other is M-shaped.

[0039] As Figure 6 shown, the first derrick support 3 includes a trapezoidal support frame 31 connecting the first crown block platform 1 and the second crown block platform 2 and its reinforcement bracket frame 32 supporting the H-shaped partition beam assembly. The trapezoidal reinforcement bracket frame 32 connects the second middle node 10 of the first crown block platform 1 and the corner node 6 of the second crown block platform 2, reducing the span of the crown block platform beam and reasonably dispersing the force of the H-shaped partition beam assembly on the first crown block platform 1 to the main beam of the second crown block platform 2.

[0040] AsFigure 9 As shown, the reinforcing support frame body 32 is an M-shaped reinforcing support frame body. The two upper ends of the reinforcing support frame body 32 are connected to the second middle node 10 of the first-layer sheave platform 1. The lower ends of the two outer sides of the reinforcing support frame body 32 are connected to the corner nodes 6 of the second-layer sheave platform 2. The lower end in the middle of the reinforcing support frame body 32 is connected to the support beam 9 of the second-layer sheave platform 2. The M-shaped reinforcing support frame body 32 disperses a part of the force to the support beam 9 of the second-layer sheave platform 2, and no hoisting equipment is installed on the support beam 9.

[0041] As Figure 1 、 Figure 6 and Figure 7 shown, the second derrick support body 4 includes a human-shaped support frame body 41 and an inverted V-shaped support frame body 42 provided on the human-shaped support frame body 41 to support the second-layer sheave platform 2. The top end of the inverted V-shaped support frame body 42 is connected to the second middle node 10 of the second-layer sheave platform 2, and the two bottom ends of the inverted V-shaped support frame body 42 are connected to the human-shaped support frame body 41.

[0042] The inverted V-shaped support frame body 42 provides support between the human-shaped support frame body 41 and the second-layer sheave platform 2, and is installed basically along the sheave beam 7 direction of the second-layer sheave platform 2, avoiding occupying the space below the sheave installation area 11 and the lowering area 12, and not affecting the operation of the hoisting equipment on the first-layer sheave platform 1 and the second-layer sheave platform 2. The inverted V-shaped support frame body 42 prevents the rod body of the human-shaped support frame body 41 from being overstressed, plays a role in balancing the rod force, and improves the stability and service life.

[0043] In view of the above detailed description, these and other changes can be made to these embodiments. This written description includes embodiments of the best mode to disclose the present invention. The scope of the patent obtained by the present invention is defined by the claims, and the claims are not limited by this disclosure. The protection scope of the present invention is not limited thereto. Any person skilled in the art within the scope disclosed by the present invention, according to the technical solution and its concept of the present invention, makes equivalent substitutions or changes, and all fall within the protection scope of the present invention.

Claims

1. A sheave platform for a small-section shaft, comprising a first-layer sheave platform (1), a second-layer sheave platform (2), a first derrick support (3) and a second derrick support (4). The top of the second derrick support (4) is successively provided with a sheave platform system composed of the second-layer sheave platform (2), the first derrick support (3) and the first-layer sheave platform (1) from bottom to top. It is characterized in that the sheave platform system includes a first-layer sheave platform (1) and a second-layer sheave platform (2) that rotate relative to each other by 90°. Both the first-layer sheave platform (1) and the second-layer sheave platform (2) include a number of main beams (5) that enclose a square shape and corner nodes (6) that connect adjacent two main beams (5). Inside the main beams (5), there is an H-shaped partition beam assembly. The H-shaped partition beam assembly includes two relatively parallel sheave beams (7). Between the two sheave beams (7), there is a support beam (9). The two ends of the support beam (9) are installed on the sheave beams (7) through second middle nodes (10). The two ends of the sheave beams (7) are installed on the main beams (5) through first middle nodes (8). The first derrick support (3) includes a trapezoidal support frame (31) that connects the first-layer sheave platform (1) and the second-layer sheave platform (2) and a reinforcement support frame body (32) that supports the H-shaped partition beam assembly. The reinforcement support frame body (32) is located between the two sheave installation areas (11) of the first-layer sheave platform (1) and is installed along the direction of the support beam (9). The second derrick support (4) includes a human-shaped support frame (41) and an inverted V-shaped support frame (42) that is arranged on the human-shaped support frame (41) and supports the second-layer sheave platform (2). The inverted V-shaped support frame (42) is installed along the direction of the sheave beam (7) of the second-layer sheave platform (2). The reinforcement support frame body (32) is an M-shaped reinforcement support frame body. The two upper ends of the reinforcement support frame body (32) are connected to the second middle nodes (10) of the first-layer sheave platform (1). The lower ends of the two outer sides of the reinforcement support frame body (32) are connected to the corner nodes (6) of the second-layer sheave platform (2). The middle lower end of the reinforcement support frame body (32) is connected to the support beam (9) of the second-layer sheave platform (2); the reinforcement support frame body (32) is alternatively a trapezoidal reinforcement support frame body. Trapezoidal support frames (31) are correspondingly connected between a number of corner nodes (6) of the first-layer sheave platform (1) and the second-layer sheave platform (2). Reinforcement support frame bodies (32) are correspondingly connected between the second middle nodes (10) of the first-layer sheave platform (1) and the corner nodes (6) of the second-layer sheave platform (2).

2. The small-section shaft sheave platform according to claim 1, It is characterized in that a lowering area (12) is enclosed between two adjacent main beams (5) and sheave beams (7). A sheave installation area (11) is enclosed between two adjacent main beams (5), two sheave beams (7) and a support beam (9).

3. The small-section shaft sheave platform according to claim 2, It is characterized in that the sheave installation areas (11) and lowering areas (12) on the first-layer sheave platform (1) and the second-layer sheave platform (2) are staggered.

4. The crown block platform for small-section shaft according to claim 1, characterized in that, the top end of the inverted V-shaped support frame (42) is connected to the second middle node (10) of the second-layer crown block platform (2), and the two bottom ends of the inverted V-shaped support frame (42) are connected to the human-shaped support frame (41).

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