CN114290044A - Method and device for automatically screwing and disassembling flange cover bolt - Google Patents
Method and device for automatically screwing and disassembling flange cover bolt Download PDFInfo
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- CN114290044A CN114290044A CN202111679798.3A CN202111679798A CN114290044A CN 114290044 A CN114290044 A CN 114290044A CN 202111679798 A CN202111679798 A CN 202111679798A CN 114290044 A CN114290044 A CN 114290044A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 70
- 239000003638 chemical reducing agent Substances 0.000 claims description 23
- 238000009434 installation Methods 0.000 abstract 1
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- 238000010586 diagram Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention discloses a method and a device for automatically screwing and disassembling a flange cover bolt, which comprises the following steps: the device comprises a rotary supporting mechanism, a bolt screwing and disassembling mechanism and a hoisting bearing mechanism. Starting the hoisting bearing mechanism, hoisting the top cover with the placed bolts from other positions to the flange to be assembled and aligning the top cover with the placed bolts, starting the bolt screwing and disassembling mechanism, screwing the bolts into the flange holes, and screwing the pair of bolts; and starting the rotary supporting mechanism, rotating the bolt tightening and disassembling mechanism to the position above the next pair of bolts to be tightened, stopping the bolt tightening and disassembling mechanism, moving the bolt tightening and disassembling mechanism downwards to complete the bolt tightening, and then completing the tightening work of 14 groups of 28 bolts, wherein the processes of the disassembling work and the tightening work are opposite. The invention can realize the installation and the disassembly of the flange cover bolt and improve the production efficiency.
Description
Technical Field
The invention belongs to the field of mechanical assembly, and particularly relates to a method and a device for automatically screwing and disassembling a flange cover bolt.
Technical Field
The flange top cover and the flange need to be connected through bolts. Bolts between the large-scale flange top cover and the flange are mainly screwed and disassembled by manually holding tools with different automation levels, the automation level is low, the hoisting, the screwing and the disassembling are separated, different devices are required to be used for respective operation, and a large amount of time, space and labor cost are consumed. Devices that achieve automatic tightening and loosening of flange cover bolts and that have hoisting capabilities are therefore in high demand in the industry. Up to now, no method and device for automatically screwing and disassembling the flange cover bolt and having the hoisting function exist.
Disclosure of Invention
The technical problem to be solved is as follows:
the invention aims to solve the technical problems of realizing automatic tightening and dismounting of a flange cover bolt, improving the production efficiency of automatic tightening and dismounting of the flange cover bolt and improving the economic benefit, and provides a method and a device for automatically tightening and dismounting the flange cover bolt.
In order to solve the technical problems, the invention provides
A method and apparatus for automatically tightening and removing a flange cover bolt, the apparatus comprising: the device comprises a rotary supporting mechanism 1, a bolt screwing and disassembling mechanism 2 and a hoisting bearing mechanism 3;
the rotary supporting mechanism 1 comprises a rotary speed reducer 12 and a rotary disk 13; the lower end of the rotary speed reducer 12 is fixedly connected with the rotating disc 13 and can drive the rotating disc 13 to rotate at a specified speed, and the rotating disc 13 is provided with 6 through holes which are respectively fixedly connected with the bolt screwing and disassembling mechanism 2 and the hoisting bearing mechanism 3 and can drive the two mechanisms to rotate at a required speed;
the bolt screwing and disassembling mechanism 2 is fixedly arranged on the rotating disc 13, a self-contained motor can stretch out and draw back in the vertical direction, the lower end of the self-contained motor can be sleeved with a bolt 51, and the bolt 51 is screwed into the flange hole;
the hoisting bearing mechanism 3 comprises a hoisting chain 31, a guide rod 32, a linear bearing connecting plate 33, a linear bearing 34, a cover plate 35, a flange hoisting mechanism 36, an upright column 37 and a fixed flange 38; the lower end of a hanging chain 31 is fixed on the upper surface of a fixed seat 40, a guide rod 32 penetrates through a cover plate 35 through a linear bearing fixed on a linear bearing connecting plate 33 and is fixed on a bottom plate 39 through a fixed flange 38, the linear bearing connecting plate 33 is fixed on the fixed seat 40, four upright posts 37 are fixed between the cover plate 35 and the bottom plate 39 to play a supporting role, and a flange hoisting mechanism 36 is fixed below a rotating disc 13, can rotate along with the rotating disc 13 and can stretch in the vertical direction, so that the hoisting function is realized.
The method is characterized in that:
preferably, two of the bolt tightening and disassembling mechanisms 2 are symmetrically arranged, a group of bolts 51 at opposite angles can be simultaneously tightened, and four of the flange hoisting mechanisms 36 are symmetrically arranged to enable the hoisting stress to be even.
Preferably, the upper end of the rotation reducer 12 is fixed to the fixing base 40 and remains stationary.
Preferably, the bottom plate 39 is in close fit with the flange 54, which facilitates the positioning of the flange by the device.
A method for automatically screwing and disassembling a flange cover bolt comprises the following steps:
a. the entire apparatus is hoisted over the top cover 53 with the bolts 51 and spring rings 52 in place.
And starting the rotary speed reducer 12 to rotate until the lower ends of the four flange hoisting mechanisms 36 are aligned with the four positioning holes in the top cover 53, and then stopping.
The four flange hoisting mechanisms 36 are started to extend, inserted into the positioning holes, fastened and then contracted, and the top cover 53 is hoisted.
The entire assembly is moved over the flange 54 and the slew reducer 12 is activated.
And the slewing reducer 12 is moved until the top cover 53 is aligned with the bolt holes of the flange 54, and then stopped.
The flange mount 36 is extended to place the top cover 53 over the flange 54 and then retracted to move up and back.
The two bolt tightening and removing mechanisms 2 are simultaneously extended to fit over a set of bolts 51 for rotational tightening.
The bolt tightening and removing mechanism 2 is contracted and moved up, and the rotation reducer 12 is rotated until the bolt tightening and removing mechanism 2 is aligned with the adjacent other set of bolts 51 and then stopped.
The bolt tightening and removing mechanism 2 is extended to fit over the other set of bolts 51 and tightened.
After the above process is repeated until 28 bolts in 14 groups are tightened, the bolt tightening and disassembling mechanism 2 is contracted and moved upwards to reset.
The slewing reducer 12 is moved until the flange hoisting mechanism 36 is aligned with the positioning hole and then stopped.
The flange mount 36 is extended to lift the assembled top cover 53 from the flange 54.
After the whole device moves to a specified position, the flange hoisting mechanism 36 moves upwards and resets after lowering the top cover 53 and the flange 54.
And the whole device stops after moving to a specified position, and the work is finished.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is an overall structural view of the present invention.
Fig. 3 is a diagram of a rotational support mechanism of the present invention.
Fig. 4 is a bolt tightening and removal mechanism diagram of the present invention.
Figure 5 is a load bearing hoist configuration of the present invention.
Reference is made to the accompanying drawings in which: 1. a rotation support mechanism; 2. a bolt tightening and dismounting mechanism; 3. hoisting the bearing mechanism; 12. a slewing reducer; 13. rotating the disc; 31. a chain is hung; 32. a guide bar; 33. a linear bearing connecting plate; 34. a linear bearing; 35. a cover plate; 36. a flange hoisting mechanism; 37. a column; 38. a fixed flange; 39. a base plate; 40. a fixed seat; 51. a bolt; 52. a spring ring; 53. a top cover; 54. and (4) a flange.
Detailed Description
Referring to fig. 2 to 5, the entire apparatus is hoisted above the top cover 53 where the bolts 51 and the spring rings 52 are placed. And starting the rotary speed reducer 12 to rotate until the lower ends of the four flange hoisting mechanisms 36 are aligned with the four positioning holes in the top cover 53, and then stopping. The four flange hoisting mechanisms 36 are started to extend, inserted into the positioning holes, fastened and then contracted, and the top cover 53 is hoisted. The entire assembly is moved over the flange 54 and the slew reducer 12 is activated. And the slewing reducer 12 is moved until the top cover 53 is aligned with the bolt holes of the flange 54, and then stopped. The flange mount 36 is extended to place the top cover 53 over the flange 54 and then retracted to move up and back. The two bolt tightening and removing mechanisms 2 are simultaneously extended to fit over a set of bolts 51 for rotational tightening. The bolt tightening and removing mechanism 2 is contracted and moved up, and the rotation reducer 12 is rotated until the bolt tightening and removing mechanism 2 is aligned with the adjacent other set of bolts 51 and then stopped. The bolt tightening and removing mechanism 2 is extended to fit over the other set of bolts 51 and tightened. After the above process is repeated until 28 bolts in 14 groups are tightened, the bolt tightening and disassembling mechanism 2 is contracted and moved upwards to reset. The slewing reducer 12 is moved until the flange hoisting mechanism 36 is aligned with the positioning hole and then stopped. The flange mount 36 is extended to lift the assembled top cover 53 from the flange 54. After the whole device moves to a specified position, the flange hoisting mechanism 36 moves upwards and resets after lowering the top cover 53 and the flange 54. And the whole device stops after moving to a specified position, and the work is finished.
The foregoing embodiments illustrate the principles and features of the present invention and their advantages, and it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the specific principles of operation of the present invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. An apparatus for automatically tightening and removing a flange cover bolt, comprising: the device comprises a rotary supporting mechanism (1), a bolt screwing and disassembling mechanism (2) and a hoisting bearing mechanism (3);
the rotary supporting mechanism (1) comprises a rotary speed reducer (12) and a rotary disk (13); the lower end of the rotary speed reducer (12) is fixedly connected with the rotating disc (13) and can drive the rotating disc (13) to rotate at a specified speed, and the rotating disc (13) is provided with 6 through holes which are respectively fixedly connected with the bolt tightening and disassembling mechanism (2) and the hoisting bearing mechanism (3) and can drive the two mechanisms to rotate at a required speed;
the bolt screwing and disassembling mechanism (2) is fixedly arranged on the rotating disc (13), a self-contained motor can stretch out and draw back in the vertical direction, the lower end of the self-contained motor can be sleeved with a bolt (51), and the bolt (51) is screwed into the flange hole;
the hoisting bearing mechanism 3 comprises a hoisting chain (31), a guide rod (32), a linear bearing connecting plate (33), a linear bearing (34), a cover plate (35), a flange hoisting mechanism (36), an upright post (37) and a fixed flange (38); the lower end of a lifting chain (31) is fixed on the upper surface of a fixed seat (40), a guide rod (32) penetrates through a cover plate (35) through a linear bearing fixed on a linear bearing connecting plate (33), and is fixed on a bottom plate (39) through a fixing flange (38), the linear bearing connecting plate (33) is fixed on the fixed seat (40), four upright posts (37) are fixed between the cover plate (35) and the bottom plate (39), the supporting function is achieved, a flange hoisting mechanism (36) is fixed below a rotating disk (13), the rotating disk can rotate along with the rotating disk (13) and can stretch in the vertical direction, and the lifting function is achieved.
2. The method and the device for automatically screwing and unscrewing the bolts of the flange cover according to the claim 1 are characterized in that: two bolt tightening and disassembling mechanisms (2) are symmetrically arranged, a group of bolts (51) at opposite angles can be simultaneously tightened, and four flange hoisting mechanisms (36) are symmetrically arranged to enable hoisting stress to be average.
3. The method and the device for automatically screwing and unscrewing the bolts of the flange cover according to the claim 1 are characterized in that: the upper end of the rotary speed reducer (12) is fixed with the fixed seat (40) and is kept still.
4. The method and the device for automatically screwing and unscrewing the bolts of the flange cover according to the claim 1 are characterized in that: the bottom plate (39) is closely matched with the flange (54), so that the flange is conveniently positioned by the device.
5. A method for automatically screwing and disassembling a flange cover bolt is characterized by comprising the following steps: the method comprises the following steps:
a. the automatic flange bolt tightening and loosening device of claims 1-4 is hoisted above the top cover (53) with the bolts (51) and the spring ring (52) placed;
b. starting the rotary speed reducer (12) to rotate until the lower ends of the four flange hoisting mechanisms (36) are aligned with the four positioning holes on the top cover (53) and then stopping;
c. starting the four flange hoisting mechanisms (36), extending, inserting into the positioning holes, fastening and then contracting, and hoisting the top cover (53);
d. the whole device is moved above the flange (54), and the rotary speed reducer (12) is started;
e. the slewing reducer (12) is moved until the top cover (53) is aligned with the bolt hole of the flange (54), and then the slewing reducer is stopped;
f. the flange hoisting mechanism (36) extends to place the top cover (53) on the flange (54), and then contracts to move upwards for resetting;
g. the two bolt tightening and disassembling mechanisms (2) extend to be sleeved with a group of bolts (51) to be screwed tightly;
h. the bolt tightening and dismounting mechanism (2) contracts and moves upwards, and the rotary speed reducer (12) rotates until the bolt tightening and dismounting mechanism (2) is aligned with another group of adjacent bolts (51) and then stops;
i. the bolt screwing and disassembling mechanism (2) extends to be sleeved into the other group of bolts (51) and is screwed;
j. after the processes are repeated until 28 bolts in 14 groups are screwed, the bolt screwing and disassembling mechanism (2) contracts, moves upwards and resets;
k. the rotary speed reducer (12) moves to the flange hoisting mechanism (36) to be aligned with the positioning hole and then stops;
the flange hoisting mechanism (36) extends to hoist the assembled top cover (53) and the flange (54);
m, after the whole device moves to a specified position, the flange hoisting mechanism (36) moves upwards to reset after the top cover (53) and the flange (54) are put down;
and n, stopping the whole device after moving to a specified position, and finishing work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679798.3A CN114290044A (en) | 2021-12-31 | 2021-12-31 | Method and device for automatically screwing and disassembling flange cover bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679798.3A CN114290044A (en) | 2021-12-31 | 2021-12-31 | Method and device for automatically screwing and disassembling flange cover bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114290044A true CN114290044A (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111679798.3A Pending CN114290044A (en) | 2021-12-31 | 2021-12-31 | Method and device for automatically screwing and disassembling flange cover bolt |
Country Status (1)
| Country | Link |
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| CN (1) | CN114290044A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070687A (en) * | 2022-06-16 | 2022-09-20 | 中国核电工程有限公司 | Opening and closing device and opening and closing method for filter flange |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873760A (en) * | 1986-12-29 | 1989-10-17 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Vessel lid mounting and demounting apparatus |
| FR2679694A1 (en) * | 1991-07-25 | 1993-01-29 | Framatome Sa | Tightening and untightening machine for bolts for fastening a cover onto an enclosure, in particular a primary pump of a nuclear power station |
| CN108231219A (en) * | 2017-12-29 | 2018-06-29 | 安徽中科超安科技有限公司 | Nuclear power is precious with long-range dismantlement of overlength sleeve and hoist and mount integrated device |
| CN110280999A (en) * | 2019-06-27 | 2019-09-27 | 中船澄西船舶修造有限公司 | A kind of tooling for horizontal lifting hydraulic nut peculiar to vessel |
| CN210307640U (en) * | 2019-07-09 | 2020-04-14 | 合肥中科离子医学技术装备有限公司 | Be used for superconductive cyclotron upper iron yoke assembly guide equipment |
| CN111633407A (en) * | 2020-05-26 | 2020-09-08 | 中车青岛四方车辆研究所有限公司 | Automatic tightening and aligning mechanism for rear crushing pipe of car coupler |
| CN211759721U (en) * | 2020-02-17 | 2020-10-27 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Hoisting device in groups of nuclear power pressure vessel kingbolt stretcher |
-
2021
- 2021-12-31 CN CN202111679798.3A patent/CN114290044A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873760A (en) * | 1986-12-29 | 1989-10-17 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Vessel lid mounting and demounting apparatus |
| FR2679694A1 (en) * | 1991-07-25 | 1993-01-29 | Framatome Sa | Tightening and untightening machine for bolts for fastening a cover onto an enclosure, in particular a primary pump of a nuclear power station |
| CN108231219A (en) * | 2017-12-29 | 2018-06-29 | 安徽中科超安科技有限公司 | Nuclear power is precious with long-range dismantlement of overlength sleeve and hoist and mount integrated device |
| CN110280999A (en) * | 2019-06-27 | 2019-09-27 | 中船澄西船舶修造有限公司 | A kind of tooling for horizontal lifting hydraulic nut peculiar to vessel |
| CN210307640U (en) * | 2019-07-09 | 2020-04-14 | 合肥中科离子医学技术装备有限公司 | Be used for superconductive cyclotron upper iron yoke assembly guide equipment |
| CN211759721U (en) * | 2020-02-17 | 2020-10-27 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Hoisting device in groups of nuclear power pressure vessel kingbolt stretcher |
| CN111633407A (en) * | 2020-05-26 | 2020-09-08 | 中车青岛四方车辆研究所有限公司 | Automatic tightening and aligning mechanism for rear crushing pipe of car coupler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070687A (en) * | 2022-06-16 | 2022-09-20 | 中国核电工程有限公司 | Opening and closing device and opening and closing method for filter flange |
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