阅读说明：本技术 一种防止管片异常掉落装置 (Device for preventing segment from abnormally dropping ) 是由 任丽娜 冯志鹏 庞培彦 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种防止管片异常掉落装置,解决了现有管片吊机不能防止管片异常掉落的技术问题。本发明包括至少一个防护单元,每个防护单元均包括竖向旋转机构和横向旋转机构,所述竖向旋转机构包括转动配合的竖向固定段和竖向旋转段,横向旋转机构包括横向固定段和横向旋转段。所述竖向固定段与管片吊机相连,竖向旋转段与横向固定段相连,横向旋转段与管片吊机之间夹持管片。将本发明安装在吊机吸盘两侧,在吸盘吸附管片后,将竖向旋转段转至竖直状态,并将横向旋转段旋转到管片下部。当管片意外掉落时,横向旋转段可以卡住管片,防止管片直接掉落下来,避免造成安全事故。将本发明安装在其他形式的吊机上,同样具有防止管片意外掉落的作用。(The invention discloses a device for preventing a duct piece from abnormally dropping, which solves the technical problem that the existing duct piece crane cannot prevent the duct piece from abnormally dropping. The device comprises at least one protection unit, wherein each protection unit comprises a vertical rotating mechanism and a transverse rotating mechanism, the vertical rotating mechanism comprises a vertical fixed section and a vertical rotating section which are in running fit, and the transverse rotating mechanism comprises a transverse fixed section and a transverse rotating section. The vertical fixed section is connected with the segment crane, the vertical rotating section is connected with the transverse fixed section, and the segment is clamped between the transverse rotating section and the segment crane. The invention is arranged on two sides of a crane sucker, after the sucker adsorbs a segment, the vertical rotating section is rotated to be in a vertical state, and the horizontal rotating section is rotated to be at the lower part of the segment. When the section of jurisdiction accident dropped, the section of jurisdiction can be blocked to the horizontal rotation section, prevents that the section of jurisdiction from directly dropping, avoids causing the incident. The invention is arranged on other types of cranes, and also has the function of preventing the duct piece from accidentally falling.)

1. The utility model provides a prevent section of jurisdiction unusual device that drops which characterized in that: including at least one protection unit, every protection unit all includes vertical rotary mechanism and horizontal rotary mechanism, and vertical rotary mechanism includes vertical canned paragraph and the vertical rotation section of normal running fit, and horizontal rotary mechanism includes horizontal canned paragraph and horizontal rotation section, vertical canned paragraph links to each other with section of jurisdiction loop wheel machine (20), and vertical rotation section links to each other with horizontal canned paragraph, centre gripping section of jurisdiction (21) between horizontal rotation section and section of jurisdiction loop wheel machine (20).

2. The segment abnormal drop prevention device according to claim 1, wherein: the protection units are arranged in two numbers, and the two protection units are respectively arranged on two sides of the same segment crane (20).

3. The segment abnormal drop prevention device according to claim 1 or 2, wherein: and a vertical corner positioning mechanism is arranged between the vertical fixing section and the segment crane (20).

4. The segment abnormal drop prevention device according to claim 3, wherein: and a transverse corner positioning mechanism is arranged between the vertical rotating section and the transverse fixed section or the transverse rotating section.

5. The segment abnormal drop prevention device according to claim 4, wherein: the vertical fixing section comprises a transverse shaft (101) connected with a segment crane (20), the transverse shaft (101) is in running fit with the vertical rotating section, the vertical corner positioning mechanism comprises a positioning shaft (8) which is inserted and matched with the vertical rotating section, and a first positioning hole matched with the positioning shaft (8) is formed in the segment crane (20).

6. The segment abnormal drop prevention device according to claim 5, wherein: the vertical rotating section comprises a transverse sleeve (14) matched with a transverse shaft (101) in a rotating mode, the upper end of the transverse sleeve (14) is connected with a box body (9), and the positioning shaft (8) is in penetrating fit with the box body (9).

7. The segment abnormal drop prevention device according to claim 6, wherein: both sides of horizontal sleeve (14) all are connected with curb plate (2), horizontal fixed section is including setting up vertical sleeve (15) between two curb plates (2), and vertical sleeve (15) internal rotation is provided with vertical axle (5), and horizontal corner positioning mechanism includes and alternates complex locating pin (19) with vertical sleeve (15), is provided with on vertical axle (5) with locating pin (19) complex second locating hole.

8. The segment abnormal drop prevention device according to claim 7, wherein: the transverse rotating section comprises a vertical baffle (16) connected with a vertical shaft (5).

9. The apparatus for preventing abnormal drop of duct piece according to claim 8, wherein: the vertical baffle (16) is provided with a lateral baffle (17) and a handle (18), the side wall of the vertical sleeve (15) is clamped between the lateral baffle (17) and the vertical shaft (5), and the handle (18) is perpendicular to the vertical shaft (5).

10. The segment abnormal drop prevention device according to any one of claims 7 to 9, wherein: the upper end of the vertical shaft (5) is provided with an external thread section, the external thread section is connected with a vertical nut (6), the diameter of the vertical nut (6) is larger than the inner diameter of the vertical sleeve (15), the outer end of the transverse shaft (101) is provided with a transverse bolt (4), a transverse end plate (3) is arranged between the transverse bolt (4) and the transverse shaft (101), and the diameter of the transverse end plate (3) is larger than the inner diameter of the transverse sleeve (14).

Technical Field

The invention belongs to the technical field of segment grabbing devices, and particularly relates to a device for preventing segments from abnormally dropping.

Background

In the tunnel construction process, consider factors such as structure, weight of section of jurisdiction, the section of jurisdiction hangs the chance and uses the sucking disc formula to grab the mode of holding, and sucking disc formula section of jurisdiction loop wheel machine is grabbed and is held factor of safety high, and the suitability is strong. However, the construction condition in the tunnel is complex, the phenomena of signal interference and the like can occur, and the sucking disc grasping system can suddenly release the duct piece due to the signal interference. The current sucking disc formula section of jurisdiction loop wheel machine does not have mechanical protection, after the sucking disc suddenly released the section of jurisdiction, leads to the unexpected incident that the section of jurisdiction dropped unusually.

Therefore, the development of a device for preventing the segment crane from grabbing the segment and dropping the segment abnormally is a new problem to be solved urgently.

Disclosure of Invention

Aiming at the defects in the background art, the invention provides a device for preventing a duct piece from abnormally dropping, which solves the technical problem that the existing duct piece crane cannot prevent the duct piece from abnormally dropping.

The technical scheme of the invention is realized as follows: the utility model provides a prevent section of jurisdiction unusual device that drops, includes at least one protection unit, and the quantity of protection unit can be confirmed according to the weight of section of jurisdiction, size and section of jurisdiction loop wheel machine's structure. Each protection unit comprises a vertical rotating mechanism and a transverse rotating mechanism, the vertical rotating mechanism can rotate in the vertical direction relative to the segment crane, and when the segment crane grabs the segment, the vertical rotating mechanism rotates to the position above the segment crane or is flush with the segment crane, so that interference with the grabbing action of the segment crane is avoided; after the segment crane grabs the segment, the vertical rotating mechanism rotates to a vertical state. The vertical rotating mechanism comprises a vertical fixed section and a vertical rotating section which are in running fit, and the horizontal rotating mechanism comprises a horizontal fixed section and a horizontal rotating section. The vertical fixed section is connected with the segment crane, the vertical rotating section is connected with the transverse fixed section, and the segment is clamped between the transverse rotating section and the segment crane. When the vertical rotating section of the vertical rotating mechanism rotates to a vertical state, the transverse rotating section rotates to the position below the duct piece, the duct piece is clamped, and the duct piece is prevented from accidentally dropping.

The protection unit is provided with two, and two protection units set up respectively in the both sides of same section of jurisdiction loop wheel machine and mutual symmetry, under the very simple prerequisite of structure, fully guarantee the reliability to the section of jurisdiction protection.

Be provided with vertical corner positioning mechanism between vertical fixed segment and the section of jurisdiction loop wheel machine, be convenient for before the section of jurisdiction loop wheel machine snatchs the action and snatch the action after, fix a position whole device, avoid artifical support operation.

A transverse corner positioning mechanism is arranged between the vertical rotating section and the transverse fixing section or between the vertical rotating section and the transverse rotating section, so that the reliability of lifting the tube sheet by the transverse rotating section can be fully guaranteed, and the vertical rotating section can be avoided from enabling the transverse rotating section to rotate randomly.

The vertical fixed section comprises a transverse shaft connected with the segment crane, the transverse shaft is in running fit with the vertical rotating section, the vertical corner positioning mechanism comprises a positioning shaft which is in alternate fit with the vertical rotating section, and a first positioning hole matched with the positioning shaft is formed in the segment crane.

The vertical rotating section comprises a transverse sleeve matched with a transverse shaft in a rotating mode, the upper end of the transverse sleeve is connected with a box body, and the positioning shaft is matched with the box body in an inserting mode.

The lateral fixing section comprises a vertical sleeve arranged between the two lateral plates, a vertical shaft is arranged in the vertical sleeve in a rotating mode, the lateral corner positioning mechanism comprises a positioning pin which is inserted into the vertical sleeve in a matched mode, and a second positioning hole matched with the positioning pin is arranged on the vertical shaft.

The horizontal rotation section comprises a vertical baffle connected with a vertical shaft, and the vertical baffle is used for lifting the duct piece.

The vertical baffle is provided with a lateral baffle and a handle, the side wall of the vertical sleeve is clamped between the lateral baffle and the vertical shaft, and the handle is perpendicular to the vertical shaft.

The upper end of the vertical shaft is provided with an external thread section, the external thread section is connected with a vertical nut, the diameter of the vertical nut is larger than the inner diameter of the vertical sleeve, the outer end of the transverse shaft is provided with a transverse bolt, a transverse end plate is arranged between the transverse bolt and the transverse shaft, and the diameter of the transverse end plate is larger than the inner diameter of the transverse sleeve.

Compared with the prior art, the invention has the beneficial effects that:

the invention is arranged on two sides of a crane sucker, after the sucker adsorbs a segment, the vertical rotating section is rotated to be in a vertical state, and the horizontal rotating section is rotated to be at the lower part of the segment. When the section of jurisdiction accident dropped, the section of jurisdiction can be blocked to the horizontal rotation section, prevents that the section of jurisdiction from directly dropping, avoids causing the incident. The invention is arranged on other types of cranes, and also has the function of preventing the duct piece from accidentally falling.

Drawings

In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view taken along the line A-A in FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a schematic view of the structure of the base plate and the transverse shaft of FIG. 1;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

figure 6 is a side view of the lateral rotation mechanism of figure 1;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a schematic view of the present invention mounted on a suction cup segment crane;

in the figure: 1. a base plate; 2. a side plate; 3. an end plate; 4. a transverse bolt; 5. a transverse axis; 6. a vertical nut; 7. a vertical spacer; 8. positioning the shaft; 9. a box body; 901. a front plate; 902. a back plate; 903. a base plate; 904. a top plate; 10. a panel; 11. a bolt assembly; 12. a vertical positioning hole; 13. a horizontal positioning hole; 14. a transverse sleeve; 15. a vertical sleeve; 151. a second positioning hole; 16. a vertical baffle; 17. a lateral baffle; 18. a handle; 19. positioning pins; 20. a segment crane; 21. a tube sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

A device for preventing segment from abnormal dropping, as shown in figure 8, comprises at least one protection unit, the number of which can be determined according to the weight and size of the segment and the structure of the segment crane 20. Each protection unit comprises a vertical rotating mechanism and a transverse rotating mechanism, the vertical rotating mechanism can rotate in the vertical direction relative to the segment crane 20, and when the segment crane 20 grabs a segment, the vertical rotating mechanism rotates to the position above or is flush with the segment crane 20, so that interference with the grabbing action of the segment crane 20 is avoided; after the segment crane 20 grabs the segment, the vertical rotating mechanism rotates to a vertical state.

The vertical rotating mechanism comprises a vertical fixed section and a vertical rotating section which are in running fit, and the horizontal rotating mechanism comprises a horizontal fixed section and a horizontal rotating section. The vertical fixed section is connected with the segment crane 20, the vertical rotating section is connected with the horizontal fixed section, and the segment 21 is clamped between the horizontal rotating section and the segment crane 20. When vertical rotary mechanism's vertical rotation section was rotatory to vertical state, horizontal rotary segment was rotatory to the below of section of jurisdiction 21, realized the centre gripping to section of jurisdiction 21, prevented that section of jurisdiction 21 accident from dropping.

Specifically, when the protection device is installed on a sucker type segment crane, two protection units are arranged, the two protection units are respectively arranged on two sides of the same segment crane 20 and are mutually symmetrical, and the reliability of protection on the segment 21 is fully ensured on the premise of extremely simple structure.

As shown in fig. 1-3, the vertical fixed section includes a transverse shaft 101 connected to the segment crane 20, the transverse shaft 101 is welded to the bottom plate 1, the bottom plate 1 is welded or bolted to the segment crane 20, and the transverse shaft 101 is rotationally matched with the vertical rotating section, so that the vertical rotating section can be rotationally matched with the transverse shaft 101 vertically, that is, the vertical rotating section can rotate vertically relative to the segment crane 20. The vertical rotating section comprises a transverse sleeve 14 which is matched with the transverse shaft 101 in a rotating mode, a transverse bolt 4 is arranged at the outer end portion of the transverse shaft 101, a transverse end plate 3 is arranged between the transverse bolt 4 and the transverse shaft 101, the diameter of the transverse end plate 3 is larger than the inner diameter of the transverse sleeve 14, and the reliability of connection of the vertical fixing section and the vertical rotating section is guaranteed.

The upper end of the transverse sleeve 14 is connected with a box body 9, the box body 9 comprises a front plate 901, a rear plate 902, a bottom plate 903 and a top plate 904 which are connected in a welding mode, and the front plate 901 is connected with a panel 10 through a bolt assembly 11. A positioning shaft 8 is arranged through the panel 10, the front plate 901 and the rear plate 902, and the positioning shaft passes through the end part of the rear plate 902 and is matched with the bottom plate 1 in a positioning way.

As shown in fig. 4 and 5, two first positioning holes are provided on the bottom plate 1, and the two first positioning holes are a vertical positioning hole 12 and a horizontal positioning hole 13, respectively. When the positioning shaft 8 is inserted into the vertical positioning hole 12, the vertical rotation section is parallel to the segment crane 20, and when the positioning shaft 8 is inserted into the horizontal positioning hole 13, the vertical rotation section is perpendicular to the segment crane 20. The positioning shaft 8 is convenient for positioning the whole device before and after the grabbing action of the segment crane 20, so that manual supporting operation is avoided.

As shown in fig. 1 and 2, the lateral plates 2 are connected to two sides of the transverse sleeve 14, the transverse fixing section includes a vertical sleeve 15 disposed between the two lateral plates 2, and the vertical sleeve 15 is rotatably provided with a vertical shaft 5. The upper end of vertical axle 5 is provided with the external screw thread section, and the external screw thread section is connected with vertical nut 6 and vertical gasket 7, and the diameter of vertical gasket 7, vertical nut 6 is greater than the internal diameter of vertical sleeve 15, guarantees that vertical axle 5 can not remove vertical sleeve 15 relatively.

Further, be provided with horizontal corner positioning mechanism between vertical rotation section and horizontal fixed segment or the horizontal rotation section, can fully guarantee the reliability that the horizontal rotation section lifted section of jurisdiction 21, can avoid vertical rotation section to make the horizontal rotation section rotate at will again. The transverse corner positioning mechanism comprises a positioning pin 19 which is in penetrating fit with the vertical sleeve 15, and the positioning pin 19 is a ball spring positioning pin. As shown in fig. 6, the vertical shaft 5 is provided with a second positioning hole 151 that engages with the positioning pin 19.

As shown in fig. 6 and 7, the transverse rotation section comprises a vertical baffle 16 connected to the vertical shaft 5, and the vertical baffle 16 is used for supporting the segment 21. The vertical baffle 16 is provided with a lateral baffle 17 and a handle 18, the side wall of the vertical sleeve 15 is clamped between the lateral baffle 17 and the vertical shaft 5, and the handle 18 is arranged perpendicular to the vertical shaft 5.

Nothing in this specification is intended to be exhaustive of all conventional and well known techniques.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.