Automatic leveling and hoisting sling for vertical shaft duct piece

Abstract

The utility model relates to a lifting appliance for automatically leveling and lifting a shaft duct piece. The lifting appliance comprises a lifting frame, a guide rail and an adjusting device, the hanging bracket is in the length direction from front to back, the hanging bracket is of a left-right symmetrical structure, the front half part of the hanging bracket is provided with a limiting assembly matched with a duct piece and used for vertically clamping the duct piece, the symmetrical face of the hanging bracket and the symmetrical face of the duct piece are the same vertical face, and lifting lugs are symmetrically arranged on the two sides of the rear half part of the hanging bracket. The guide rail is fixedly connected to the rear half part of the hanger along the length direction of the hanger; the adjusting device comprises a main body structure, a driving system, a control system and a balance weight detachably installed on the main body structure. The driving system is fixedly connected to the main body structure and is matched with the guide rail; the control system is used for automatically detecting the segment dip angle and controlling the driving system, the main body structure and the balance weight to move back and forth along the guide rail according to the dip angle numerical value to achieve leveling. According to the utility model, rapid and accurate leveling of segment hoisting can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical shaft construction technical field especially relates to a vertical shaft segment automatic leveling hoist. BACKGROUND

[0002] In recent years, with the promotion of urban renewal, underground space engineering develops rapidly, so that the vertical shaft sinking well technology has developed rapidly. The traditional sinking well technology sinks by self weight, and problems such as over sinking and partial sinking are prone to occur, and the well wall adopts cast-in-place process, and the waiting time for concrete solidification is long, the construction period and quality control are difficult, and the traditional sinking well technology is no longer suitable for engineering demand. Controllable sinking well technology gradually develops, and advanced controllable sinking well technology adopts lifting system to control uniform sinking of well wall, in order to cooperate with efficient construction, the well wall adopts prefabricated segment, and the construction efficiency and vertical shaft quality are greatly improved.

[0003] The vertical shaft prefabricated segment is generally a standard module of six or eight pieces, the left-right direction is along the arc length direction of the segment arc surface, the segment is a left-right symmetrical structure, the symmetry plane is a vertical plane, the inner side arc length of the segment cross section is shorter than the outer side arc length, and the plane development diagram of the inner wall and the outer wall of the segment is a trapezoidal structure, and each layer of segment is installed in sequence to form the entire lining ring. The vertical shaft segment has a short development time, and there is no special installation equipment, at present, the hoisting is installed by using a truck crane, and the installation process time is the key to determine the construction efficiency, and the most critical process of fast installation segment is segment leveling, that is, the upper end surface and the lower end surface of the segment are parallel to the horizontal plane. The segment symmetry plane is the center plane of the left-right direction, but the weight distribution of the segment is uneven in the lining ring diameter direction, and the overall gravity center is difficult to determine, so the leveling difficulty is great, and there is no special hoist with leveling function at present.

[0004] Therefore, how to quickly level the hoist to make the hoisting angle horizontal (the upper end surface and the lower end surface of the segment are parallel to the horizontal plane) to realize fast installation is a problem to be solved urgently. Utility model content

[0005] Therefore, the utility model provides a vertical shaft segment automatic leveling hoist, which can realize fast and accurate leveling of segment hoisting.

[0006] The utility model discloses a vertical shaft segment automatic leveling hoist, including gallows, guide rail and adjusting device, make the length direction of gallows from front to back for it, and the gallows is the symmetrical structure of left and right, the half portion of gallows is equipped with the limiting component of cooperation with segment for vertical clamping segment, and the symmetrical surface of gallows is the same vertical surface with the symmetrical surface of segment, and the half portion of gallows is equipped with the lug of symmetrical both sides after, the guide rail is fixedly connected in the half portion of gallows along the length direction of gallows, the adjusting device includes main body structure, drive system, control system and counterweight of detachable installation in main body structure, and drive system is fixedly connected in main body structure, and is mutually matched with guide rail, and control system is used for automatic detection segment inclination, and according to inclination value control drive system together with main body structure and counterweight realize leveling along with guide rail front and back movement.

[0007] Further, the initial position of the drive system is located at the midpoint of the guide rail.

[0008] Further, the frame structure is composed of a top frame, a front support and a middle support. The front support is in front of the middle support, and both are fixedly connected to the front half of the top frame vertically downward. The limiting component includes a screw rod and a buffer, the screw rod is parallel to the length direction of the gallows, and the screw rod is arranged on the middle support and symmetrically distributed on both sides of the symmetrical surface of the gallows for inserting into the lifting hole of the inner wall of the segment. The buffer is arranged on the front support and symmetrically distributed on both sides of the symmetrical surface of the gallows for providing force support for the outer wall of the segment. The screw rod and the buffer limit the segment between the front support and the middle support.

[0009] Further, the drive system of the adjusting device is composed of a drive motor and a gear connected with the output end of the drive motor. The gear is matched with the rack teeth arranged on the central axis of the guide rail. The control system includes an inclination instrument and a control module. The inclination instrument is used for collecting the inclination data of the segment and sending to the control module. The control module controls the drive motor to drive the gear to rotate, so that the gear moves forward and backward along the guide rail according to the inclination value.

[0010] Further, each side of the lug is provided with a plurality of lifting points.

[0011] Further, the screw rod is divided into a smooth rod part and a threaded part from front to back. The screw rod passes through the threaded hole of the middle support. The smooth rod part is matched with the lifting hole of the segment, and the threaded part is threadedly connected with the threaded hole.

[0012] Further, the counterweight is a combined structure including a battery assembly, which is used for providing power for the drive motor.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The symmetrical plane of the hanger and the symmetrical plane of the tube segment are located on the same vertical plane for lifting the tube segment. This vertical plane is also the plane where the center of gravity of the tube segment is located, ensuring that the tube segment is balanced in the left and right directions. It is only necessary to adjust the level in the front and back directions of the hanger to make the lifting angle horizontal. The control system drives the adjustment device with counterweight to move back and forth along the guide rail set in the length direction of the hanger until the inclination angle of the tube segment approaches 0°, that is, the upper end face of the tube segment is parallel to the horizontal plane. The leveling of the tube segment can be completed quickly and accurately.

[0015] 2. This utility model uses screws inserted into pre-reserved lifting holes to lift the pipe segments, which facilitates the installation of the lifting device and will not damage the pipe segments; the screws are symmetrically arranged on the left and right sides of the central support to ensure that the symmetrical plane of the lifting device is located in the middle of the pipe segment, and the buffer abuts against the outer wall of the pipe segment to provide force support, further ensuring the safety of the lifting device.

[0016] 3. The counterweight of this utility model is a combined structure including a battery component, which can serve as a counterweight for leveling and also provide power to the drive motor, simplifying the overall device structure.

[0017] 4. The lifting lug of this utility model is provided with several lifting points to accommodate different types of tunnel segments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the adjustment device of this utility model.

[0020] Figure 3 This is a schematic diagram of the operation of this utility model.

[0021] Figure 4 This is a schematic diagram showing the relative position of the present invention and the segment, where (a) is a front view and (b) is a side view.

[0022] Among them, 1-hanger, 2-guide rail, 3-adjustment device, 4-lifting lug, 5-screw, 6-buffer, 7-rack, 8-limiting beam, 9-main structure, 10-drive motor, 11-gear, 12-inclinometer, 13-control module, 14-counterweight module, 15-guide groove, 16-segment. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] This utility model provides an automatic leveling and hoisting tool for vertical shaft segments, such as... Figure 1As shown, the lifting device includes a hanger 1, a guide rail 2, and an adjusting device 3. The hanger 1 is symmetrical from front to back along its length. The front half of the hanger 1 is equipped with a limiting component that mates with the tunnel segment 16 for vertically clamping the tunnel segment 16. Vertical clamping refers to... (See...) Figure 3 The axis of segment 16 (lining ring) is perpendicular to the horizontal plane; and the symmetry plane of hanger 1 and the symmetry plane of segment 16 are the same vertical plane, which is the plane where the center of gravity of segment 16 is located; symmetrical lugs 4 are provided on both sides of the rear half of hanger 1 for suspending the suspension rope, such as Figure 3 As shown in (a), the lifting ropes are symmetrically suspended on the lifting lugs on both sides. The guide rail 2 is fixed to the rear half of the hanger 1 along the length of the hanger 1, that is, the guide rail 2 is located on the plane where the center of gravity of the segment 16 is located.

[0025] In this embodiment, the hanger 1 is a frame structure, serving as the basic framework for the load-bearing structure and component installation of the lifting device. The frame structure consists of a top frame, a front support, and a middle support in a U-shape. The front support and the middle support are both arranged along the width direction of the hanger 1. The front support is vertically fixed to the bottom front end of the top frame, and the middle support is vertically fixed to the bottom middle part of the top frame. Lifting lugs 4 are symmetrically arranged on the left and right sides of the top frame, and each lifting lug 4 has several lifting points to accommodate different types of tunnel segments 16. The positions of the lifting points are determined based on the theoretically calculated position of the center of gravity.

[0026] The limiting assembly includes a screw 5 with its axis parallel to the length of the hanger 1 and a buffer 6. The screw 5 is a key load-bearing component for hoisting the segment 16. It is set on the middle support, and several screws 5 are symmetrically distributed on both sides of the symmetry plane of the hanger 1. It is used to insert into the hoisting holes reserved during the prefabrication of the inner wall of the segment 16. The hoisting holes are symmetrically distributed on both sides of the symmetry plane of the segment 16. The buffer 6 can be a rubber pad. It is set on the front support, and several buffers 6 are distributed on both sides of the symmetry plane of the hanger 1. It is used to press against the back of the segment 16 during hoisting to provide load-bearing support for the outer wall of the segment 16. The screw 5 and the buffer 6 limit the segment 16 between the front support and the middle support.

[0027] The guide rail 2 serves as a guiding mechanism for the adjustment device 3 during operation. It consists of a track and a rack 7. The track is installed along the length of the hanger 1 in the rear half of the hanger 1, and the rack 7 is set on the central axis of the track.

[0028] like Figure 2As shown, the adjustment device 3 includes a main structure 9, a drive system, a control system, and a counterweight system detachably installed on the main structure 9. The main structure 9 is a shell-type steel structure with a guide groove 15 penetrating through the bottom. The guide groove 15 is U-shaped, and the guide rail 2 passes through the lower part of the guide groove 15. The drive system consists of a drive motor 10 and a gear 11 connected to the output end of the drive motor 10. The drive motor 10 is fixed to the main structure 9, and the gear 11 is located on the upper part of the guide groove 15 and meshes with the rack 7 of the guide rail 2. The initial position of the gear 11 is at the middle of the rack 7, that is, the initial position of the adjustment device 3 is located at the midpoint of the guide rail 2, which makes it easier for the gear 11 to move back and forth along the rack 7. The drive motor 10 can drive the gear 11 to rotate, so that it drives the main structure 9 and the counterweight system to move back and forth along the rack 7, so as to move closer to or away from the tube segment 16.

[0029] The control system includes an inclinometer 12 and a control module 13. The inclinometer 12 is used to collect the inclination angle data of the segment 16 and send it to the control module 13. The inclinometer 12 can be zeroed before hoisting. The inclination angle of the segment 16 refers to the angle between the upper and lower end faces of the segment 16 and the horizontal plane. In this embodiment, the inclination angle is 0°, which means that the upper end face of the segment 16 is parallel to the horizontal plane. The positive and negative values ​​of the inclination angle correspond to the segment 16 tilting towards (backward) or away from (forward) the hanger 1. The control module 13 determines the forward and reverse operation of the drive motor 10 based on the inclination angle value, so as to drive the gear 11 to rotate forward and reverse, so that the adjustment device 3 moves away from or towards the segment 16 along the guide rail 2 with the midpoint of the guide rail 2 as the initial position, thereby leveling the segment 16 until the inclination angle approaches 0° and the drive motor 10 stops running.

[0030] The control system can be configured with a wireless remote control handle for convenient remote leveling during hoisting. The counterweight system consists of multiple counterweight modules 14, the number of which is pre-determined according to the model of the tunnel segment 16. Each counterweight module 14 has two bolt holes and is bolted to the main structure 9 for easy assembly and disassembly. In this embodiment, the counterweight module 14 is a combined structure including a battery pack, which can be used to provide power for the drive motor 10. Multiple counterweight modules 14 can be combined and installed, increasing the battery pack capacity. When not in use, the battery pack can be removed for charging.

[0031] As an improvement, the screw 5 is divided into a smooth section and a threaded section from front to back. The diameter of the smooth section is smaller than that of the threaded section. The screw 5 passes through a threaded hole provided in the middle support from back to front. This threaded hole is set along the length direction of the hanger. The smooth section is inserted into the lifting hole of the tube segment 16, and the threaded section is threadedly connected to the threaded hole. In addition, the rear end of the top frame can be set as a detachable limiting beam 8. The limiting beam 8 is fixed to the rear end of the top frame by bolts. The detachable installation of the limiting beam 8 facilitates the installation or removal of the adjustment device 3. The limiting beam 8 can also be used to limit the end of the adjustment device 3.

[0032] The working principle of this utility model is as follows:

[0033] After the shaft segment 16 model is determined, the quantity of counterweight modules 14 is adjusted in advance, and the position of the lifting lug 4 is determined based on the theoretically calculated center of gravity. For example... Figure 4 As shown, before hoisting segment 16, the adjusting device 3 is located at the midpoint of the guide rail 2; the screw 5 is inserted from back to front through the threaded hole of the middle bracket, and its smooth part is inserted into the hoisting hole on the inner wall of segment 16, and its threaded part is threadedly fixed to the threaded hole; so that the outer wall of segment 16 abuts against the buffer 6, completing the installation of the hoisting device; the segment 16 is hoisted with a hoisting rope, and after the sway of segment 16 decreases, the leveling button of the remote control handle is manually operated. The control system automatically identifies the positive and negative tilt angles, thereby driving the motor 10 to run in the corresponding direction, so that the tilt angle approaches 0° and the upper surface of segment 16 approaches horizontal, and the leveling is completed; the segment 16 is hoisted to the installation position for installation.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shaft segment automatic leveling hoist, characterized in that, The crane frame, guide rail and adjusting device are included; the length direction of the crane frame is from front to back, the crane frame is left-right symmetrical structure, the front half of the crane frame is provided with a limiting assembly matched with the segment for vertically clamping the segment, and the symmetrical surface of the crane frame and the symmetrical surface of the segment are the same vertical surface, the back half of the crane frame is provided with lifting lugs on both sides; The adjusting device includes a main body structure, a driving system, a control system and a counterweight detachably installed on the main body structure; The driving system is fixedly connected to the main body structure and cooperates with the guide rail; the control system is used for automatically detecting the inclination angle of the segment and controlling the driving system together with the main body structure and the counterweight to move forward and backward along the guide rail to realize leveling according to the inclination angle value.

2. The shaft segment self-leveling lift-assist hoist of claim 1, wherein, The initial position of the driving system is located at the midpoint of the guide rail.

3. The shaft segment self-leveling lift-assist hoist of claim 1, wherein, The crane frame is composed of a top frame, a front support and a middle support; the front support is in front of the middle support, and both are fixedly connected to the front half of the top frame vertically downward; The limiting assembly includes a screw shaft and a buffer, the screw shaft is parallel to the length direction of the crane frame, the screw shaft is arranged on the middle support and symmetrically distributed on both sides of the symmetrical surface of the crane frame, and is used for being inserted into the lifting hole in the inner wall of the segment; the buffer is arranged on the front support and symmetrically distributed on both sides of the symmetrical surface of the crane frame, and is used for providing force support for the outer wall of the segment; the screw shaft and the buffer limit the segment between the front support and the middle support.

4. The shaft segment self-leveling lift-assist hoist of claim 3, wherein, The driving system of the adjusting device is composed of a driving motor and a gear connected with the output end of the driving motor, and the gear cooperates with the rack teeth arranged on the central axis of the guide rail; The control system includes an inclination angle instrument and a control module, the inclination angle instrument is used for collecting inclination angle data of the segment and sending the inclination angle data to the control module, and the control module controls the driving motor to drive the gear to rotate and move forward and backward along the guide rail according to the inclination angle value.

5. The shaft segment self-leveling lift-assist hoist of claim 4, wherein, The lifting lug on each side is provided with a plurality of lifting points.

6. A shaft segment auto-leveling lifting spreader according to any of claims 3-5, characterized in that, The screw shaft is divided into a smooth rod part and a threaded part from front to back, the screw shaft passes through the threaded hole arranged on the middle support, the smooth rod part cooperates with the lifting hole of the segment, and the threaded part is threadedly connected with the threaded hole.

7. The automatic levelling hoist for shaft segments according to any of claims 1-5, characterised in that, The counterweight is a combined structure including a battery assembly, and the battery assembly is used for providing power for the driving motor.

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