CN114735605A - Rotary hoisting device - Google Patents

Rotary hoisting device Download PDF

Info

Publication number
CN114735605A
CN114735605A CN202210503631.XA CN202210503631A CN114735605A CN 114735605 A CN114735605 A CN 114735605A CN 202210503631 A CN202210503631 A CN 202210503631A CN 114735605 A CN114735605 A CN 114735605A
Authority
CN
China
Prior art keywords
slewing
nut
hanger
pin
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210503631.XA
Other languages
Chinese (zh)
Inventor
范如谷
谭晓波
李欣欣
夏家泉
黎悟非
张建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinohydro Bureau 7 Co Ltd
Sinohydro Jiajiang Hydraulic Machinery Co Ltd
Original Assignee
Sinohydro Bureau 7 Co Ltd
Sinohydro Jiajiang Hydraulic Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sinohydro Bureau 7 Co Ltd, Sinohydro Jiajiang Hydraulic Machinery Co Ltd filed Critical Sinohydro Bureau 7 Co Ltd
Priority to CN202210503631.XA priority Critical patent/CN114735605A/en
Publication of CN114735605A publication Critical patent/CN114735605A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details
    • B66C23/84Slewing gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02Driving gear
    • B66D1/12Driving gear incorporating electric motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28Other constructional details
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

本发明公开了一种回转吊装置,属于起重启闭设备技术领域,包括吊具,其特征在于:所述吊具包括上吊架、滑轮轴、动滑轮组、穿销件、吊头、下吊架、吊钩横梁、吊钩螺母、回转驱动件和抓梁,动滑轮组通过滑轮轴安装在上吊架上,吊头通过穿销件固定在上吊架上,吊钩横梁贯穿吊钩螺母并安装在下吊架上,吊钩螺母与吊头连接,所述吊钩横梁和吊钩螺母之间安装有回转轴承,所述回转驱动件安装在下吊架上,所述抓梁与下吊架连接。本发明吊具可同步逆向旋转保证闸门轴线始终与门槽轴线保持平行状态,避免回转过程中吊具和闸门发生晃动,从而能够保障闸门自动精准定位入槽,提高吊装精度和吊装效率,且整个回转吊安装便捷。

Figure 202210503631

The invention discloses a slewing hoisting device, belonging to the technical field of lifting and closing equipment, including a sling, characterized in that: the sling comprises an upper hanger, a pulley shaft, a movable pulley block, a pin-through, a lifting head, and a lower sling. Frame, hook beam, hook nut, rotary drive and grab beam, the movable pulley block is installed on the upper hanger through the pulley shaft, the lifting head is fixed on the upper hanger through the pin, and the hook beam penetrates the hook nut and is installed on the lower On the hanger, the hanger nut is connected with the hanger head, a slewing bearing is installed between the hanger beam and the hanger nut, the slewing drive is installed on the lower hanger, and the grab beam is connected with the lower hanger. The spreader of the invention can be rotated synchronously and reversely to ensure that the axis of the gate is always in a parallel state with the axis of the gate slot, so as to avoid shaking of the spreader and the gate during the rotation process, so as to ensure that the gate is automatically and accurately positioned into the slot, improve the hoisting accuracy and hoisting efficiency, and the whole The slewing crane is easy to install.

Figure 202210503631

Description

Rotary lifting device
Technical Field
The invention relates to the technical field of hoisting starting and stopping equipment, in particular to a rotary hoisting device.
Background
In the existing hoisting equipment, especially the hoisting starting and stopping equipment which hoists objects by rotation and needs accurate positioning is adopted, for example, a gate is hoisted into a gate slot or a gate warehouse by a hoist for a hydropower station.
Because the operation mode of the slewing mechanism is rotary motion, the track and the tangential angle of each door slot or door storehouse are different in the operation process, so that the axis of the door body cannot be parallel to the axis of the door slot or the door storehouse to be placed in the hoisting process, and even if the steel wire rope does not swing, the gate is difficult to enter the groove without other forces. Therefore, the existing hoisting equipment can realize the accurate positioning of the gate into the groove only through manual auxiliary operation, and the safety operation and the high-efficiency operation of personnel and equipment are adversely affected, and particularly, the personnel can generate great potential safety hazards in the auxiliary gate positioning groove of the gate slot orifice. Therefore, when the rotary crane is used for hoisting a gate object, how to accurately position the rotary crane and ensure that the axis of the gate is parallel to the axis of the gate slot are very important.
Chinese patent publication No. CN112209224A, published 2021, 01, 12.d., discloses a full-swing hanger, which is characterized by comprising: the movable pulley lifting lugs are arranged on two sides of the upper surface of the balance beam and are used for being connected with a movable pulley on a crown block through a steel wire rope, and a connecting piece is arranged at the center of the bottom of the balance beam; the swing mechanism is connected to the balance beam through a connecting piece; the space hanging point structure is connected to the slewing mechanism and realizes slewing motion through the slewing mechanism; the bottom layer distribution beam is used for connecting the hoisted objects, and the bottom layer distribution beam is connected with the space hanging point structure through a plurality of distribution suspension ropes.
The full-rotation lifting appliance disclosed by the patent document solves the technical problem that a lifted heavy object cannot rotate, adopts a modular design, and is compact in structure. However, the gate hoisting device is used for hoisting gates, the swaying performance is large, the automatic and accurate positioning of the gates into the slots cannot be guaranteed, and the hoisting precision and the hoisting efficiency are low.
Disclosure of Invention
The lifting appliance can synchronously rotate reversely to ensure that the axis of the gate is always kept parallel to the axis of the gate slot, so that the lifting appliance and the gate are prevented from shaking in the rotation process, the gate can be automatically and accurately positioned to enter the slot, the lifting precision and the lifting efficiency are improved, and the whole rotary crane is convenient to install.
The invention is realized by the following technical scheme:
the utility model provides a rotary hoisting device, includes hoist, rotary platform, pull rod, assembly pulley, installs at the rotation mechanism of portal below and installs the gyration computer lab on rotation mechanism through rotary platform, installs hoisting mechanism in the gyration computer lab, and the last coiling of hoisting mechanism has wire rope, installs the cantilever crane on the gyration computer lab, and the top at the cantilever crane is installed to the assembly pulley, and the one end and the portal frame top of pull rod are articulated, and the other end and the cantilever crane of pull rod are articulated, its characterized in that: the lifting appliance comprises an upper lifting frame, a pulley shaft, a movable pulley block, a pin penetrating piece, a lifting head, a lower lifting frame, a lifting hook cross beam, a lifting hook nut, a rotary driving piece and a grabbing beam, wherein the movable pulley block is installed on the upper lifting frame through the pulley shaft, the movable pulley block and the pulley block are connected through a steel wire rope in a winding mode, the lifting head is provided with a pin shaft hole, the lifting head is fixed on the upper lifting frame through the pin penetrating piece, the lifting hook cross beam penetrates through the lifting hook nut and is installed on the lower lifting frame, the lifting hook nut is connected with the lifting head, a rotary bearing is installed between the lifting hook cross beam and the lifting hook nut, the rotary driving piece is installed on the lower lifting frame, and the grabbing beam is connected with the lower lifting frame.
The pin penetrating piece is positioned between the movable pulley block and the hook cross beam.
The rotary driving piece is positioned below the lifting hook nut.
The rotary driving piece is a rotary motor or a rotary hydraulic cylinder.
The pin penetrating piece comprises a pin shaft, a sleeve, a nut, a screw rod and a hand wheel, the screw rod is arranged in the sleeve, one end of the screw rod is fixedly connected with the hand wheel outside the sleeve, the other end of the screw rod is connected with the nut through threads, one end of the pin shaft is located in the sleeve and is fixedly connected with the nut, and the nut is located in the pin shaft.
The upper hanger comprises a first upper hanger plate, a second upper hanger plate and an upper transverse hanger plate, one end of the upper transverse hanger plate is vertically and fixedly connected with the first upper hanger plate, and the other end of the upper transverse hanger plate is vertically and fixedly connected with the second upper hanger plate.
And a pin shaft sleeve is fixedly connected to the second upper hanging plate of the upper hanging bracket, and the inner diameter of the pin shaft sleeve is larger than the outer diameter of the pin shaft.
The lower hanging bracket comprises a first lower hanging plate, a second lower hanging plate and a lower transverse hanging plate, one end of the lower transverse hanging plate is vertically and fixedly connected with the first lower hanging plate, and the other end of the lower transverse hanging plate is vertically and fixedly connected with the second lower hanging plate.
The beneficial effects of the invention are mainly shown in the following aspects:
1. the invention relates to a lifting appliance, which comprises an upper lifting frame, a pulley shaft, a movable pulley block, a pin penetrating piece, a lifting head, a lower lifting frame, a lifting hook cross beam, a lifting hook nut, a rotary driving piece and a grabbing beam, wherein the movable pulley block is arranged on the upper lifting frame through the pulley shaft, the movable pulley block and the pulley block are connected through a steel wire rope in a winding way, the lifting head is provided with a pin shaft hole and is fixed on the upper lifting frame through the pin penetrating piece, the lifting hook cross beam penetrates through the lifting hook nut and is arranged on the lower lifting frame, the lifting hook nut is connected with the lifting head, a rotary bearing is arranged between the lifting hook cross beam and the lifting hook nut, the rotary driving piece is arranged on the lower lifting frame, and the grabbing beam is connected with the lower lifting frame. And the whole rotary crane is convenient to install.
2. According to the invention, the rotary driving piece is arranged on the lower hanging bracket, and the grabbing beam is connected with the lower hanging bracket, so that the movable pulley block does not need to be separately wired, and can be directly wired by virtue of the junction box of the grabbing beam, the structural design is reasonable, and the installation convenience of the whole rotary crane is greatly improved.
3. According to the invention, the rotary driving piece is positioned below the lifting hook nut, so that the grabbing beam can be better driven to synchronously rotate, and smooth rotary operation of the grabbing beam is realized.
4. According to the invention, the rotary driving piece is a rotary motor or a rotary hydraulic cylinder, can be selected according to different use scenes, and has strong flexibility.
5. According to the invention, the pin penetrating piece comprises a pin shaft, a sleeve, a nut, a screw rod and a hand wheel, the screw rod is arranged in the sleeve, one end of the screw rod is fixedly connected with the hand wheel outside the sleeve, the other end of the screw rod is connected with the nut through threads, one end of the pin shaft is positioned in the sleeve and fixedly connected with the nut, the nut is positioned in the pin shaft, the screw rod is driven to rotate by rotating the hand wheel, the screw rod rotates to drive the nut and the pin shaft to translate along the sleeve, and the pin penetrating or pin releasing action can be completed.
6. According to the invention, the upper hanging bracket comprises the first upper hanging plate, the second upper hanging plate and the upper transverse hanging plate, one end of the upper transverse hanging plate is vertically and fixedly connected with the first upper hanging plate, and the other end of the upper transverse hanging plate is vertically and fixedly connected with the second upper hanging plate, so that good support can be provided for the movable pulley block, and the use reliability of the whole rotary hanging device is ensured.
7. According to the invention, the pin shaft sleeve is fixedly connected to the second upper hanging plate of the upper hanging frame, the inner diameter of the pin shaft sleeve is larger than the outer diameter of the pin shaft, and the pin shaft is screwed into the pin shaft sleeve when the pin is inserted, so that the connection firmness can be further improved.
8. According to the invention, the lower hanging bracket comprises the first lower hanging plate, the second lower hanging plate and the lower transverse hanging plate, one end of the lower transverse hanging plate is vertically and fixedly connected with the first lower hanging plate, and the other end of the lower transverse hanging plate is vertically and fixedly connected with the second lower hanging plate, so that good support can be provided, and the structure is simple.
Drawings
The invention will be further described in detail with reference to the drawings and the detailed description, in which:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the spreader of the present invention;
FIG. 3 is a schematic view of the construction of the pin passing member of the present invention;
the labels in the figure are: 1. the lifting appliance comprises a lifting appliance 2, a rotary platform 3, a pull rod 4, a pulley block 5, a portal frame 6, a rotary mechanism 7, a rotary machine room 8, a lifting mechanism 9, a steel wire rope 10, an arm support 11, an upper lifting frame 12, a pulley shaft 13, a movable pulley block 14, a rotary driving piece 15, a lifting hook nut 16, a lifting hook beam 17, a lifting head 18, a pin penetrating piece 19, a grabbing beam 20, a rotary bearing 21, a lower lifting frame 22, a pin shaft 23, a sleeve 24, a nut 25, a screw rod 26, a hand wheel 27, a first upper lifting plate 28, a second upper lifting plate 29, an upper lifting plate 30, a first lower lifting plate 31, a pin shaft sleeve 32, a second lower lifting plate 33 and a lower transverse lifting plate.
Detailed Description
Example 1
Referring to fig. 1 and 2, a rotary hoisting device comprises a hoisting device 1, a rotary platform 2, a pull rod 3, a pulley block 4, a rotary mechanism 6 arranged below a portal frame 5, and a rotary machine room 7 arranged on the rotary mechanism 6 through the rotary platform 2, wherein a hoisting mechanism 8 is arranged in the rotary machine room 7, a steel wire rope 9 is wound on the hoisting mechanism 8, an arm support 10 is arranged on the rotary machine room 7, the pulley block 4 is arranged on the top of the arm support 10, one end of the pull rod 3 is hinged with the top of the portal frame 5, the other end of the pull rod 3 is hinged with the arm support 10, the hoisting device 1 comprises an upper hoisting frame 11, a pulley shaft 12, a movable pulley block 13, a pin penetrating piece 18, a hoisting head 17, a lower hoisting frame 21, a hoisting hook beam 16, a hoisting hook nut 15, a rotary driving piece 14 and a grabbing beam 19, the movable pulley block 13 is arranged on the upper hoisting frame 11 through the pulley shaft 12, and the movable pulley block 13 and the pulley block 4 are connected through the steel wire rope 9 in a winding manner, the lifting head 17 is provided with a pin shaft hole, the lifting head 17 is fixed on the upper hanging bracket 11 through a pin penetrating piece 18, the lifting hook cross beam 16 penetrates through the lifting hook nut 15 and is installed on the lower hanging bracket 21, the lifting hook nut 15 is connected with the lifting head 17, a rotary bearing 20 is installed between the lifting hook cross beam 16 and the lifting hook nut 15, the rotary driving piece 14 is installed on the lower hanging bracket 21, and the grabbing beam 19 is connected with the lower hanging bracket 21.
In this embodiment, the lifting appliance 1 includes an upper hanger 11, a pulley shaft 12, a movable pulley block 13, a pin passing member 18, a lifting head 17, a lower hanger 21, a hook beam 16, a hook nut 15, a rotary driving member 14 and a grasping beam 19, the movable pulley block 13 is mounted on the upper hanger 11 through the pulley shaft 12, the movable pulley block 13 and the pulley block 4 are connected by a steel wire 9 in a winding manner, the lifting head 17 is provided with a pin shaft hole, the lifting head 17 is fixed on the upper hanger 11 through the pin passing member 18, the hook beam 16 passes through the hook nut 15 and is mounted on the lower hanger 21, the hook nut 15 is connected with the lifting head 17, a rotary bearing 20 is mounted between the hook beam 16 and the hook nut 15, the rotary driving member 14 is mounted on the lower hanger 21, the grasping beam 19 is connected with the lower hanger 21, compared with the prior art, the lifting appliance 1 can synchronously and reversely rotate to ensure that the gate axis always keeps parallel with the gate axis, avoid gyration in-process hoist 1 and gate to take place to rock to can ensure the automatic accurate positioning of gate and go into the groove, improve hoist and mount precision and hoist and mount efficiency, and the installation of whole gyration hoist is convenient.
Example 2
Referring to fig. 1 and 2, a rotary hoisting device comprises a hoisting device 1, a rotary platform 2, a pull rod 3, a pulley block 4, a rotary mechanism 6 arranged below a portal frame 5, and a rotary machine room 7 arranged on the rotary mechanism 6 through the rotary platform 2, wherein a hoisting mechanism 8 is arranged in the rotary machine room 7, a steel wire rope 9 is wound on the hoisting mechanism 8, an arm support 10 is arranged on the rotary machine room 7, the pulley block 4 is arranged on the top of the arm support 10, one end of the pull rod 3 is hinged with the top of the portal frame 5, the other end of the pull rod 3 is hinged with the arm support 10, the hoisting device 1 comprises an upper hoisting frame 11, a pulley shaft 12, a movable pulley block 13, a pin penetrating piece 18, a hoisting head 17, a lower hoisting frame 21, a hoisting hook beam 16, a hoisting hook nut 15, a rotary driving piece 14 and a grabbing beam 19, the movable pulley block 13 is arranged on the upper hoisting frame 11 through the pulley shaft 12, and the movable pulley block 13 and the pulley block 4 are connected through the steel wire rope 9 in a winding manner, the lifting head 17 is provided with a pin shaft hole, the lifting head 17 is fixed on the upper hanging bracket 11 through a pin penetrating piece 18, the lifting hook cross beam 16 penetrates through the lifting hook nut 15 and is installed on the lower hanging bracket 21, the lifting hook nut 15 is connected with the lifting head 17, a rotary bearing 20 is installed between the lifting hook cross beam 16 and the lifting hook nut 15, the rotary driving piece 14 is installed on the lower hanging bracket 21, and the grabbing beam 19 is connected with the lower hanging bracket 21.
The pin member 18 is located between the movable pulley block 13 and the hook beam 16.
The rotary drive member 14 is located below the hook nut 15.
The embodiment is a preferred embodiment, the rotary driving member 14 is mounted on the lower hanger 21, and the grasping beam 19 is connected with the lower hanger 21, so that the movable pulley block 13 does not need to be wired independently, and the movable pulley block is directly wired by means of a terminal box of the grasping beam 19, the structural design is reasonable, and the mounting convenience of the whole rotary hanger is greatly improved.
The rotary driving part 14 is positioned below the lifting hook nut 15, and can better drive the grabbing beam 19 to synchronously rotate, so that smooth rotary operation of the grabbing beam 19 is realized.
Example 3
Referring to fig. 1-3, a rotary hoisting device comprises a hoisting device 1, a rotary platform 2, a pull rod 3, a pulley block 4, a rotary mechanism 6 installed below a portal frame 5, and a rotary machine room 7 installed on the rotary mechanism 6 through the rotary platform 2, wherein a hoisting mechanism 8 is installed in the rotary machine room 7, a steel wire rope 9 is wound on the hoisting mechanism 8, an arm support 10 is installed on the rotary machine room 7, the pulley block 4 is installed on the top of the arm support 10, one end of the pull rod 3 is hinged with the top of the portal frame 5, the other end of the pull rod 3 is hinged with the arm support 10, the hoisting device 1 comprises an upper hoisting frame 11, a pulley shaft 12, a movable pulley block 13, a pin penetrating piece 18, a hoisting head 17, a lower hoisting frame 21, a hoisting hook beam 16, a hoisting hook nut 15, a rotary driving piece 14 and a grabbing beam 19, the movable pulley block 13 is installed on the upper hoisting frame 11 through the pulley shaft 12, and the movable pulley block 13 and the pulley block 4 are wound and connected through the steel wire rope 9, the lifting head 17 is provided with a pin shaft hole, the lifting head 17 is fixed on the upper hanging bracket 11 through a pin penetrating piece 18, the lifting hook cross beam 16 penetrates through the lifting hook nut 15 and is installed on the lower hanging bracket 21, the lifting hook nut 15 is connected with the lifting head 17, a rotary bearing 20 is installed between the lifting hook cross beam 16 and the lifting hook nut 15, the rotary driving piece 14 is installed on the lower hanging bracket 21, and the grabbing beam 19 is connected with the lower hanging bracket 21.
The pin penetrating member 18 is positioned between the movable pulley block 13 and the hook beam 16.
The rotary drive member 14 is located below the hook nut 15.
The rotary drive member 14 is a rotary motor.
The pin penetrating piece 18 comprises a pin shaft 22, a sleeve 23, a nut 24, a screw rod 25 and a hand wheel 26, the screw rod 25 is arranged in the sleeve 23, one end of the screw rod 25 is fixedly connected with the hand wheel 26 outside the sleeve 23, the other end of the screw rod 25 is in threaded connection with the nut 24, one end of the pin shaft 22 is located in the sleeve 23 and is fixedly connected with the nut 24, and the nut 24 is located in the pin shaft 22.
In another preferred embodiment, the pin penetrating element 18 includes a pin 22, a sleeve 23, a nut 24, a lead screw 25 and a hand wheel 26, the lead screw 25 is disposed in the sleeve 23, one end of the lead screw 25 is fixedly connected to the hand wheel 26 outside the sleeve 23, the other end of the lead screw 25 is connected to the nut 24 through a thread, one end of the pin 22 is disposed in the sleeve 23 and is fixedly connected to the nut 24, the nut 24 is disposed in the pin 22, the lead screw 25 is driven to rotate by rotating the hand wheel 26, and the nut 24 and the pin 22 are driven to translate along the sleeve 23 by the rotation of the lead screw 25, so as to complete a pin penetrating or a pin releasing action.
Example 4
Referring to fig. 1-3, a rotary hoisting device comprises a hoisting device 1, a rotary platform 2, a pull rod 3, a pulley block 4, a rotary mechanism 6 installed below a portal frame 5, and a rotary machine room 7 installed on the rotary mechanism 6 through the rotary platform 2, wherein a hoisting mechanism 8 is installed in the rotary machine room 7, a steel wire rope 9 is wound on the hoisting mechanism 8, an arm support 10 is installed on the rotary machine room 7, the pulley block 4 is installed on the top of the arm support 10, one end of the pull rod 3 is hinged with the top of the portal frame 5, the other end of the pull rod 3 is hinged with the arm support 10, the hoisting device 1 comprises an upper hoisting frame 11, a pulley shaft 12, a movable pulley block 13, a pin penetrating piece 18, a hoisting head 17, a lower hoisting frame 21, a hoisting hook beam 16, a hoisting hook nut 15, a rotary driving piece 14 and a grabbing beam 19, the movable pulley block 13 is installed on the upper hoisting frame 11 through the pulley shaft 12, and the movable pulley block 13 and the pulley block 4 are wound and connected through the steel wire rope 9, the lifting head 17 is provided with a pin shaft hole, the lifting head 17 is fixed on the upper hanging bracket 11 through a pin penetrating piece 18, the lifting hook cross beam 16 penetrates through the lifting hook nut 15 and is installed on the lower hanging bracket 21, the lifting hook nut 15 is connected with the lifting head 17, a rotary bearing 20 is installed between the lifting hook cross beam 16 and the lifting hook nut 15, the rotary driving piece 14 is installed on the lower hanging bracket 21, and the grabbing beam 19 is connected with the lower hanging bracket 21.
The pin member 18 is located between the movable pulley block 13 and the hook beam 16.
The rotary drive member 14 is located below the hook nut 15.
The rotary drive 14 is a rotary hydraulic cylinder.
The pin penetrating piece 18 comprises a pin shaft 22, a sleeve 23, a nut 24, a screw rod 25 and a hand wheel 26, the screw rod 25 is arranged in the sleeve 23, one end of the screw rod 25 is fixedly connected with the hand wheel 26 outside the sleeve 23, the other end of the screw rod 25 is in threaded connection with the nut 24, one end of the pin shaft 22 is located in the sleeve 23 and is fixedly connected with the nut 24, and the nut 24 is located in the pin shaft 22.
The upper hanger 11 comprises a first upper hanger plate 27, a second upper hanger plate 28 and an upper hanger plate 29, wherein one end of the upper hanger plate 29 is vertically and fixedly connected with the first upper hanger plate 27, and the other end of the upper hanger plate 29 is vertically and fixedly connected with the second upper hanger plate 28.
In this embodiment, the upper hanger 11 includes a first upper hanger plate 27, a second upper hanger plate 28 and an upper hanger plate 29, one end of the upper hanger plate 29 is vertically and fixedly connected to the first upper hanger plate 27, and the other end of the upper hanger plate 29 is vertically and fixedly connected to the second upper hanger plate 28, so as to provide a good support for the movable pulley block 13 and ensure the reliability of the whole swing hanger.
Example 5
Referring to fig. 1-3, a rotary hoisting device comprises a hoisting device 1, a rotary platform 2, a pull rod 3, a pulley block 4, a rotary mechanism 6 arranged below a portal frame 5, and a rotary machine room 7 arranged on the rotary mechanism 6 through the rotary platform 2, wherein a hoisting mechanism 8 is arranged in the rotary machine room 7, a steel wire rope 9 is wound on the hoisting mechanism 8, an arm support 10 is arranged on the rotary machine room 7, the pulley block 4 is arranged on the top of the arm support 10, one end of the pull rod 3 is hinged with the top of the portal frame 5, the other end of the pull rod 3 is hinged with the arm support 10, the hoisting device 1 comprises an upper hoisting frame 11, a pulley shaft 12, a movable pulley block 13, a pin penetrating piece 18, a hoisting head 17, a lower hoisting frame 21, a hoisting hook beam 16, a hoisting nut 15, a rotary driving piece 14 and a grabbing beam 19, the movable pulley block 13 is arranged on the upper hoisting frame 11 through the pulley shaft 12, and the movable pulley block 13 and the pulley block 4 are connected through the steel wire rope 9 in a winding manner, the lifting head 17 is provided with a pin shaft hole, the lifting head 17 is fixed on the upper hanging bracket 11 through a pin penetrating piece 18, the lifting hook cross beam 16 penetrates through the lifting hook nut 15 and is installed on the lower hanging bracket 21, the lifting hook nut 15 is connected with the lifting head 17, a rotary bearing 20 is installed between the lifting hook cross beam 16 and the lifting hook nut 15, the rotary driving piece 14 is installed on the lower hanging bracket 21, and the grabbing beam 19 is connected with the lower hanging bracket 21.
The pin penetrating member 18 is positioned between the movable pulley block 13 and the hook beam 16.
The rotary drive member 14 is located below the hook nut 15.
The rotary drive 14 is a rotary hydraulic cylinder.
The pin penetrating piece 18 comprises a pin shaft 22, a sleeve 23, a nut 24, a screw rod 25 and a hand wheel 26, the screw rod 25 is arranged in the sleeve 23, one end of the screw rod 25 is fixedly connected with the hand wheel 26 outside the sleeve 23, the other end of the screw rod 25 is in threaded connection with the nut 24, one end of the pin shaft 22 is located in the sleeve 23 and is fixedly connected with the nut 24, and the nut 24 is located in the pin shaft 22.
The upper hanger 11 comprises a first upper hanger plate 27, a second upper hanger plate 28 and an upper hanger plate 29, wherein one end of the upper hanger plate 29 is vertically and fixedly connected with the first upper hanger plate 27, and the other end of the upper hanger plate 29 is vertically and fixedly connected with the second upper hanger plate 28.
A pin shaft sleeve 31 is fixedly connected to the second upper hanging plate 28 of the upper hanging bracket 11, and the inner diameter of the pin shaft sleeve 31 is larger than the outer diameter of the pin shaft 22.
In this embodiment, a pin boss 31 is fixedly connected to the second upper hanger plate 28 of the upper hanger 11, and the inner diameter of the pin boss 31 is larger than the outer diameter of the pin 22, so that the pin 22 is screwed into the pin boss 31 during the pin insertion operation, thereby further improving the connection reliability.
Example 6
Referring to fig. 1-3, a rotary hoisting device comprises a hoisting device 1, a rotary platform 2, a pull rod 3, a pulley block 4, a rotary mechanism 6 installed below a portal frame 5, and a rotary machine room 7 installed on the rotary mechanism 6 through the rotary platform 2, wherein a hoisting mechanism 8 is installed in the rotary machine room 7, a steel wire rope 9 is wound on the hoisting mechanism 8, an arm support 10 is installed on the rotary machine room 7, the pulley block 4 is installed on the top of the arm support 10, one end of the pull rod 3 is hinged with the top of the portal frame 5, the other end of the pull rod 3 is hinged with the arm support 10, the hoisting device 1 comprises an upper hoisting frame 11, a pulley shaft 12, a movable pulley block 13, a pin penetrating piece 18, a hoisting head 17, a lower hoisting frame 21, a hoisting hook beam 16, a hoisting hook nut 15, a rotary driving piece 14 and a grabbing beam 19, the movable pulley block 13 is installed on the upper hoisting frame 11 through the pulley shaft 12, and the movable pulley block 13 and the pulley block 4 are wound and connected through the steel wire rope 9, the lifting head 17 is provided with a pin shaft hole, the lifting head 17 is fixed on the upper hanging bracket 11 through a pin penetrating piece 18, the lifting hook cross beam 16 penetrates through the lifting hook nut 15 and is installed on the lower hanging bracket 21, the lifting hook nut 15 is connected with the lifting head 17, a rotary bearing 20 is installed between the lifting hook cross beam 16 and the lifting hook nut 15, the rotary driving piece 14 is installed on the lower hanging bracket 21, and the grabbing beam 19 is connected with the lower hanging bracket 21.
The pin penetrating member 18 is positioned between the movable pulley block 13 and the hook beam 16.
The rotary drive member 14 is located below the hook nut 15.
The rotary drive 14 is a rotary hydraulic cylinder.
The pin penetrating piece 18 comprises a pin shaft 22, a sleeve 23, a nut 24, a screw rod 25 and a hand wheel 26, the screw rod 25 is arranged in the sleeve 23, one end of the screw rod 25 is fixedly connected with the hand wheel 26 outside the sleeve 23, the other end of the screw rod 25 is in threaded connection with the nut 24, one end of the pin shaft 22 is located in the sleeve 23 and is fixedly connected with the nut 24, and the nut 24 is located in the pin shaft 22.
The upper hanger 11 comprises a first upper hanger plate 27, a second upper hanger plate 28 and an upper hanger plate 29, wherein one end of the upper hanger plate 29 is vertically and fixedly connected with the first upper hanger plate 27, and the other end of the upper hanger plate 29 is vertically and fixedly connected with the second upper hanger plate 28.
A pin shaft sleeve 31 is fixedly connected to the second upper hanging plate 28 of the upper hanging bracket 11, and the inner diameter of the pin shaft sleeve 31 is larger than the outer diameter of the pin shaft 22.
The lower hanger 21 comprises a first lower hanger plate 30, a second lower hanger plate 32 and a lower transverse hanger plate 33, wherein one end of the lower transverse hanger plate 33 is vertically and fixedly connected with the first lower hanger plate 30, and the other end of the lower transverse hanger plate 33 is vertically and fixedly connected with the second lower hanger plate 32.
In the preferred embodiment, the lower hanger 21 includes a first lower hanger plate 30, a second lower hanger plate 32 and a lower horizontal hanger plate 33, one end of the lower horizontal hanger plate 33 is vertically and fixedly connected to the first lower hanger plate 30, and the other end of the lower horizontal hanger plate 33 is vertically and fixedly connected to the second lower hanger plate 32, which not only provides good support, but also has a simple structure.
The working principle of the invention is as follows:
the gantry crane arranged on the dam can walk along a track parallel to the door slot and the axis of the door garage. The rotary lifting device is arranged on the portal frame 5 of the portal crane, and the portal crane drives the rotary lifting device to move along the rail, so that the lifting device 1 and the gate can move along the axial direction of the gate slot; the rotary lifting device performs rotary motion to realize that the lifting device 1 and the gate move along the direction vertical to the track; the rotary driving piece 14 arranged on the lifting appliance 1 can counteract the deflection angle generated by the rotary lifting device in the rotary process by self-rotation, so that the gate is parallel to the axis of the gate slot; the lifting of the lifting appliance 1 is realized through the lifting mechanism 8, and the lifting appliance 1 is connected with the gate so as to realize the lifting of the gate; so, can realize the plane removal and the vertical lift of gate, can offset the declination that gyration in-process gate axis and gate groove axis produced again to realize the accurate location income groove of gate.
Specifically, the rotary driving member 14 rotates to drive the hook beam 16 and the grabbing beam 19 to synchronously rotate, so that the grabbing beam 19 is rotated. The synchronous reverse rotation of the rotary driving piece 14 driving the grabbing beam 19 is used for offsetting the deflection angle generated by the rotary hoisting device and the axis of the gate in the rotary process, so that the gate is hoisted in place and is parallel to the axis of the gate slot or the gate warehouse, the gate is accurately positioned and enters the slot, and the rotary hoisting device is prevented from shaking in the rotary hoisting process of the gate.
The working process of transporting the gate from the gate storeroom to the gate slot by adopting the invention is as follows:
a rotary motor in the rotary mechanism 6 drives a speed reducer to drive a rotary support to rotate, and further drives the arm support 10 to rotate along the axis of the rotary lifting device, so that the lifting device 1 is moved to the axis position for storing the gate storeroom; a rotary driving piece 14 in the lifting appliance 1 synchronously drives the grabbing beam 19 to rotate automatically, so that the axis of the grabbing beam 19 is always parallel to the axis of the door bank; the gantry crane drives a lifting appliance 1 of the rotary lifting device to move along the axis direction of the gantry garage, and the lifting appliance 1 is accurately moved to the central position of the gantry garage; a motor in the hoisting mechanism 8 drives a speed reducer to drive a winding drum to wind a steel wire rope 9, the lifting appliance 1 is placed to a lifting lug of the gate through a pulley block 4 and a movable pulley block 13, and the gate and the lifting appliance 1 are connected into a whole by starting a pin penetrating piece 18; a motor in the hoisting mechanism 8 drives a speed reducer to drive a winding drum to wind a steel wire rope 9, and the lifting appliance 1 and the gate are lifted out of a door warehouse; the swing mechanism 6 rotates to drive the lifting appliance 1 and the gate to move to the position of the axis of the gate slot, and in the process of lifting the gate, a rotary driving piece 14 of the lifting appliance 1 synchronously rotates reversely to offset the deflection angle and the shaking generated by rotating and lifting the gate, so that the axis of the gate is kept parallel to the axis of the gate slot; the gantry crane drives the lifting appliance 1 and the gate to move along the axis direction of the gate slot, and the gate is accurately moved to the center position of the gate slot; the lifting appliance 1 and the gate are lowered to the gate slot until the gate is in place; the pin penetrating piece 18 works to release the pin and release the gate, and the lifting sling 1 goes out of the gate slot to carry out the next working cycle.

Claims (8)

1.一种回转吊装置,包括吊具(1)、回转平台(2)、拉杆(3)、滑轮组(4)、安装在门架(5)下方的回转机构(6)和通过回转平台(2)安装在回转机构(6)上的回转机房(7),回转机房(7)内安装有起升机构(8),起升机构(8)上卷绕有钢丝绳(9),回转机房(7)上安装有臂架(10),滑轮组(4)安装在臂架(10)的顶部,拉杆(3)的一端与门架(5)顶部铰接,拉杆(3)的另一端与臂架(10)铰接,其特征在于:所述吊具(1)包括上吊架(11)、滑轮轴(12)、动滑轮组(13)、穿销件(18)、吊头(17)、下吊架(21)、吊钩横梁(16)、吊钩螺母(15)、回转驱动件(14)和抓梁(19),所述动滑轮组(13)通过滑轮轴(12)安装在上吊架(11)上,动滑轮组(13)和滑轮组(4)通过钢丝绳(9)卷绕连接,所述吊头(17)上开有销轴孔,吊头(17)通过穿销件(18)固定在上吊架(11)上,所述吊钩横梁(16)贯穿吊钩螺母(15)并安装在下吊架(21)上,吊钩螺母(15)与吊头(17)连接,所述吊钩横梁(16)和吊钩螺母(15)之间安装有回转轴承(20),所述回转驱动件(14)安装在下吊架(21)上,所述抓梁(19)与下吊架(21)连接。1. A slewing hoisting device, comprising a spreader (1), a slewing platform (2), a pull rod (3), a pulley block (4), a slewing mechanism (6) installed under the gantry (5), and a slewing platform ( 2) The slewing machine room (7) installed on the slewing mechanism (6), the hoisting mechanism (8) is installed in the slewing machine room (7), the wire rope (9) is wound on the hoisting mechanism (8), and the slewing machine room ( 7) A boom (10) is installed on it, the pulley block (4) is mounted on the top of the boom (10), one end of the pull rod (3) is hinged with the top of the gantry (5), and the other end of the pull rod (3) is connected with the boom (10) Hinged, characterized in that: the spreader (1) includes an upper hanger (11), a pulley shaft (12), a movable pulley block (13), a pin-through (18), a lifting head (17), a lower hanging The frame (21), the hook beam (16), the hook nut (15), the rotary drive (14) and the grab beam (19), the movable pulley block (13) is installed on the upper hanger (12) through the pulley shaft (12). 11), the movable pulley block (13) and the pulley block (4) are connected by winding the wire rope (9), the lifting head (17) is provided with a pin hole, and the lifting head (17) is fixed by the pin (18) On the upper hanger (11), the hook beam (16) penetrates the hook nut (15) and is installed on the lower hanger (21), the hook nut (15) is connected with the lifting head (17), and the hanger nut (15) is connected to the lifting head (17). A rotary bearing (20) is installed between the hook beam (16) and the hook nut (15), the rotary drive member (14) is mounted on the lower hanger (21), and the grab beam (19) is connected to the lower hanger (21) CONNECTIONS. 2.根据权利要求1所述的一种回转吊装置,其特征在于:所述穿销件(18)位于动滑轮组(13)和吊钩横梁(16)之间。2 . The slewing hoisting device according to claim 1 , wherein the pin-through member ( 18 ) is located between the movable pulley block ( 13 ) and the hook beam ( 16 ). 3 . 3.根据权利要求1所述的一种回转吊装置,其特征在于:所述回转驱动件(14)位于吊钩螺母(15)下方。3 . The slewing hoisting device according to claim 1 , wherein the slewing driving member ( 14 ) is located below the hook nut ( 15 ). 4 . 4.根据权利要求1所述的一种回转吊装置,其特征在于:所述回转驱动件(14)为回转电机或回转液压缸。4 . The slewing hoisting device according to claim 1 , wherein the slewing driving member ( 14 ) is a slewing motor or a slewing hydraulic cylinder. 5 . 5.根据权利要求1所述的一种回转吊装置,其特征在于:所述穿销件(18)包括销轴(22)、套筒(23)、螺母(24)、丝杆(25)和手轮(26),丝杆(25)设置在套筒(23)内,丝杆(25)的一端与套筒(23)外的手轮(26)固定连接,丝杆(25)的另一端与螺母(24)通过螺纹连接,销轴(22)的一端位于套筒(23)内并与螺母(24)固定连接,螺母(24)位于销轴(22)内。5 . The slewing hanging device according to claim 1 , wherein the pin-through member ( 18 ) comprises a pin shaft ( 22 ), a sleeve ( 23 ), a nut ( 24 ), and a screw rod ( 25 ). 6 . and handwheel (26), the screw (25) is arranged in the sleeve (23), one end of the screw (25) is fixedly connected with the handwheel (26) outside the sleeve (23), and the The other end is connected with the nut (24) through threads, one end of the pin shaft (22) is located in the sleeve (23) and is fixedly connected with the nut (24), and the nut (24) is located in the pin shaft (22). 6.根据权利要求1所述的一种回转吊装置,其特征在于:所述上吊架(11)包括第一上吊板(27)、第二上吊板(28)和上横吊板(29),上横吊板(29)的一端与第一上吊板(27)垂直固定连接,上横吊板(29)的另一端与第二上吊板(28)垂直固定连接。6. A slewing hoisting device according to claim 1, wherein the upper hanger (11) comprises a first upper suspending plate (27), a second upper suspending plate (28) and an upper horizontal suspending plate (29) One end of the upper horizontal hanging plate (29) is vertically and fixedly connected with the first upper hanging plate (27), and the other end of the upper horizontal hanging plate (29) is vertically fixed and connected with the second upper hanging plate (28). 7.根据权利要求6所述的一种回转吊装置,其特征在于:所述上吊架(11)的第二上吊板(28)上固定连接有销轴套(31),销轴套(31)的内径大于销轴(22)的外径。7 . The slewing hanging device according to claim 6 , wherein a pin bushing ( 31 ) is fixedly connected to the second upper hanging plate ( 28 ) of the upper hanger ( 11 ), and the pin bush ( 31 ). ) is larger than the outer diameter of the pin (22). 8.根据权利要求1所述的一种回转吊装置,其特征在于:所述下吊架(21)包括第一下吊板(30)、第二下吊板(32)和下横吊板(33),下横吊板(33)的一端与第一下吊板(30)垂直固定连接,下横吊板(33)的另一端与第二下吊板(32)垂直固定连接。8 . The slewing hanging device according to claim 1 , wherein the lower hanger ( 21 ) comprises a first lower hanging plate ( 30 ), a second lower hanging plate ( 32 ) and a lower horizontal hanging plate (33), one end of the lower horizontal hanging plate (33) is vertically and fixedly connected to the first lower hanging plate (30), and the other end of the lower horizontal hanging plate (33) is vertically and fixedly connected to the second lower hanging plate (32).
CN202210503631.XA 2022-05-10 2022-05-10 Rotary hoisting device Pending CN114735605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210503631.XA CN114735605A (en) 2022-05-10 2022-05-10 Rotary hoisting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210503631.XA CN114735605A (en) 2022-05-10 2022-05-10 Rotary hoisting device

Publications (1)

Publication Number Publication Date
CN114735605A true CN114735605A (en) 2022-07-12

Family

ID=82285463

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210503631.XA Pending CN114735605A (en) 2022-05-10 2022-05-10 Rotary hoisting device

Country Status (1)

Country Link
CN (1) CN114735605A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115676622A (en) * 2022-09-08 2023-02-03 中国水利水电夹江水工机械有限公司 Accurate positioning auxiliary adjusting method for rotary crane gate

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050150141A1 (en) * 2004-01-12 2005-07-14 Harnischfeger Technologies, Inc. Auxiliary assembly for reducing unwanted movement of a hoist rope
CN201980884U (en) * 2011-03-11 2011-09-21 广州市番禺粤新造船有限公司 Pneumatic hoisting frame for ship
CN203558752U (en) * 2013-11-25 2014-04-23 无锡起岸重工机械有限公司 Wall-mounted crane
CN209024030U (en) * 2018-10-15 2019-06-25 中国葛洲坝集团机械船舶有限公司 A kind of connection structure of the movable pulley pin shaft of headstock gear
CN214298865U (en) * 2020-12-29 2021-09-28 中国水利水电夹江水工机械有限公司 Rotatable movable pulley block of hoist and hoisting mechanism
CN214456295U (en) * 2020-10-30 2021-10-22 杭州江河机电装备工程有限公司 A self-rotating spreader that can be used for underwater work
CN214989619U (en) * 2020-12-29 2021-12-03 山东博远大数据集团有限公司 Lower hanger anti-drop device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050150141A1 (en) * 2004-01-12 2005-07-14 Harnischfeger Technologies, Inc. Auxiliary assembly for reducing unwanted movement of a hoist rope
CN201980884U (en) * 2011-03-11 2011-09-21 广州市番禺粤新造船有限公司 Pneumatic hoisting frame for ship
CN203558752U (en) * 2013-11-25 2014-04-23 无锡起岸重工机械有限公司 Wall-mounted crane
CN209024030U (en) * 2018-10-15 2019-06-25 中国葛洲坝集团机械船舶有限公司 A kind of connection structure of the movable pulley pin shaft of headstock gear
CN214456295U (en) * 2020-10-30 2021-10-22 杭州江河机电装备工程有限公司 A self-rotating spreader that can be used for underwater work
CN214298865U (en) * 2020-12-29 2021-09-28 中国水利水电夹江水工机械有限公司 Rotatable movable pulley block of hoist and hoisting mechanism
CN214989619U (en) * 2020-12-29 2021-12-03 山东博远大数据集团有限公司 Lower hanger anti-drop device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115676622A (en) * 2022-09-08 2023-02-03 中国水利水电夹江水工机械有限公司 Accurate positioning auxiliary adjusting method for rotary crane gate
CN115676622B (en) * 2022-09-08 2026-02-17 中国水利水电夹江水工机械有限公司 Auxiliary adjustment method for precise positioning of rotary gate

Similar Documents

Publication Publication Date Title
CN216235720U (en) A loading and unloading handling hoisting equipment with adjustable moving direction
CN118164379B (en) Telescopic cantilever structure on upper part of double-layer sleeve beam
CN205114894U (en) Manual formula wall type swing crane; derrick
CN217867645U (en) Steel box girder overhead hoist
CN212687398U (en) Crane for small building
CN202449763U (en) Simple pneumatic crane
CN211338603U (en) Gantry frame of crawler crane
CN219363050U (en) PC assembly type building hoisting machine with stable hoisting function
CN217377123U (en) Rotating crane for hydropower station
CN214456285U (en) Crane with rotary trolley
CN220317182U (en) Building structure suspender device
CN214611196U (en) A construction machinery cab lift
CN202643208U (en) Hoisting device for electric pole
CN210764024U (en) Hoisting device
CN203295075U (en) Crane pole device and crane with same
CN208648588U (en) One kind is shaken the head gin pole
CN215479535U (en) Safe and energy-saving construction elevator
CN220099829U (en) Hanging beam bracket of door type hoist
CN223087476U (en) A kind of lifting pole
CN220300196U (en) Multifunctional lifting device for building construction
CN224147605U (en) Hoisting device
CN223175698U (en) Hydropower station midspan rotary crane
CN220033845U (en) Radial arm type crane
CN221370320U (en) Tower crane balance arm is with installation location structure
CN221027351U (en) Rotary limiting mechanism for crane

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20220712