CN110589704A - Building tower crane hoist wheel is with preventing overload device - Google Patents
Building tower crane hoist wheel is with preventing overload device Download PDFInfo
- Publication number
- CN110589704A CN110589704A CN201910811158.XA CN201910811158A CN110589704A CN 110589704 A CN110589704 A CN 110589704A CN 201910811158 A CN201910811158 A CN 201910811158A CN 110589704 A CN110589704 A CN 110589704A
- Authority
- CN
- China
- Prior art keywords
- wheel
- base
- tower crane
- hoisting
- prevention device
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
- B66D1/58—Safety gear responsive to excess of load
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention relates to the technical field of constructional engineering, and discloses an overload prevention device for a hoisting wheel of a construction tower crane, which comprises a base, wherein a first fixed seat is arranged in the middle of the upper surface of the base, the upper part of the first fixed seat is rotatably connected with a winding roller, the front end part of the winding roller is fixedly connected with a second belt wheel, the second belt wheel is connected with the first belt wheel through a belt, the first belt wheel is fixedly connected with an output shaft of a driving motor, the right side of the upper surface of the base is provided with a second fixed seat, the middle part of the second fixed seat is provided with a chute, the upper part of the chute is in threaded connection. The overload protection device is suitable for the overload protection device of the hoisting wheel in the garden engineering construction facility working hour, the hoisting rope drives the rotating shaft to rise to a certain height and then to be in contact with the contact sensor through the contact sensor, so that the whole device is stopped, the protection effect is achieved, the maximum load limiting weight can be adjusted through the lead screw, and the ratchet wheel is arranged, so that the whole device cannot be reversed when an emergency occurs.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to an overload prevention device for a hoisting wheel of a construction tower crane.
Background
A winch, a light and small hoisting device for hoisting or pulling heavy objects by winding a steel wire rope or a chain on a winding drum, which is also called a winch. The hoist can drag the heavy object vertically, horizontally or obliquely. The winding machine is divided into a manual winding machine, an electric winding machine and a hydraulic winding machine. Electric winches are now the main. Can be used independently, can also be used as a component part in machinery such as hoisting, road building, mine hoisting and the like, and is widely applied due to simple operation, large rope winding amount and convenient displacement. The lifting device is mainly applied to material lifting or flat dragging of buildings, hydraulic engineering, forestry, mines, wharfs and the like.
Chinese patent (publication number: CN 106395664B) discloses an overload prevention device for a hoisting wheel of a building tower crane, which comprises a hoisting wheel shell, wherein the interior of the hoisting wheel shell is of a hollow structure, and the center of the inside is provided with a plurality of groups of semicircular groove structures, a group of rotating blocks are arranged inside the hoisting wheel shell, the inside of each rotating block is provided with a through hole structure, the through hole structure comprises a longitudinal through hole structure and a transverse through hole structure communicated with the longitudinal through hole structure, and the longitudinal rod body and the transverse rod body are respectively arranged in the longitudinal through hole structure and the transverse through hole structure, the top of the longitudinal rod body is of a semicircular structure and is inserted into the semicircular groove structure, the device passes through electromagnetic effect control whole device, and when the proruption problems such as short circuit appeared in the circuit, the device did not set up protective measure, and the article that leads to the hoist and mount can drop suddenly, causes danger, consequently needs improve the device.
Disclosure of Invention
The invention provides an overload prevention device for a hoisting wheel of a building tower crane, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a building tower crane hoist wheel is with preventing overload device, includes the base, and base upper surface middle part is equipped with first fixing base, and first fixing base upper portion is rotated and is connected the winding roller, and the positive tip fixed connection second band pulley of winding roller, second band pulley pass through the belt and connect first band pulley, first band pulley fixed connection driving motor's output shaft, base upper surface right side is equipped with the second fixing base, and second fixing base middle part is equipped with the spout, spout upper portion threaded connection lead screw, and the lead screw lower extreme rotates and connects the second briquetting, and second briquetting lower part fixed connection first spring upper end, the first briquetting of first spring lower extreme fixed connection, first briquetting lower part are equipped with the pivot, pivot sliding connection spout bottom, the pivot middle part is rotated and is connected the leading wheel, the right side back fixed connection fixed plate of base, fixed plate top are equipped with contact pick.
In a preferred embodiment of the present invention, a ratchet is fixedly connected to an end portion of a back surface of the winding roller.
As a preferred technical scheme of the invention, the back of the middle part of the base is provided with a supporting seat, the upper part of the supporting seat is connected with a sliding rod in a sliding way, and the upper end of the sliding rod is fixedly connected with a locking claw.
As a preferable technical solution of the present invention, a second spring is disposed between the bottom of the sliding rod and the base.
As a preferable technical scheme of the invention, the sliding groove is connected with the first pressing block and the second pressing block in a sliding mode.
As a preferred technical scheme of the invention, a fuse is arranged on the left side of the upper surface of the base and is connected with a driving motor through a power line.
As a preferred technical scheme of the invention, the fuse is connected with commercial power.
The invention has the following advantages:
the overload protection device is suitable for the overload protection device of the winch wheel in the garden engineering construction facility working hour, the lifting rope drives the rotating shaft to rise to a certain height and then to be in contact with the contact sensor through the contact sensor, so that the whole device is stopped, the protection effect is achieved, the maximum load limiting weight can be adjusted due to the screw rod, the ratchet wheel is arranged, the problem of reverse rotation cannot occur when the whole device is in an emergency, and the overload protection device is simple to operate, safe, reliable, convenient to control and suitable for popularization and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of the front side of an overload protection device for a hoisting wheel of a construction tower crane.
Fig. 2 is a perspective view of the rear side of an overload protection device for a hoisting wheel of a construction tower crane.
Fig. 3 is a partially enlarged view of a in fig. 2.
Fig. 4 is a front view of an overload prevention device for a hoisting wheel of a construction tower crane.
Fig. 5 is a top view of an overload prevention device for a hoisting wheel of a construction tower crane.
In the figure: 1. a base; 2. a first pulley; 3. a drive motor; 4. a belt; 5. a second pulley; 6. a first fixed seat; 7. a second fixed seat; 8. a chute; 9. a rotating shaft; 10. a first pressing block; 11. a first spring; 12. a second pressing block; 13. a screw rod; 14. a guide wheel; 15. a fixing plate; 16. a fuse; 17. a winding roller; 18. a ratchet wheel; 19. a supporting seat; 20. a second spring; 21. a slide bar; 22. a locking pawl; 23. a power line; 24. a touch sensor.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-5, an overload protection device for a hoisting wheel of a building tower crane comprises a base 1, a first fixed seat 6 is arranged in the middle of the upper surface of the base 1, the upper part of the first fixed seat 6 is rotatably connected with a winding roller 17, the front end part of the winding roller 17 is fixedly connected with a second belt pulley 5, the second belt pulley 5 is connected with a first belt pulley 2 through a belt 4, the first belt pulley 2 is fixedly connected with an output shaft of a driving motor 3, the back end part of the winding roller 17 is fixedly connected with a ratchet wheel 18, the middle back of the base 1 is provided with a supporting seat 19, the upper part of the supporting seat 19 is slidably connected with a sliding rod 21, the upper end of the sliding rod 21 is fixedly connected with a stop pawl 22, a second spring 20 is arranged between the bottom of the sliding rod 21 and the base 1, the stop pawl 22 is abutted against the lower part of the ratchet wheel 18 through the second spring 20, so that the ratchet, the ratchet 18 tends to rotate in the opposite direction and the pawl 22 cooperates with the ratchet 18 to ensure that the device does not reverse.
Base 1 upper surface right side is equipped with second fixing base 7, and 7 middle parts of second fixing base are equipped with spout 8, 8 upper portion threaded connection lead screws 13 of spout, and lead screw 13 lower extreme rotates and connects second briquetting 12, and the first spring 11 upper ends of 12 lower parts fixed connection of second briquetting, the first briquetting of 11 lower extreme fixed connection of first spring 10, first briquetting 10 lower part are equipped with pivot 9, and the first briquetting of 8 sliding connection 10 of spout and second briquetting 12, pivot 9 sliding connection spout 8 bottom, pivot 9 middle part rotates and connects leading wheel 14, base 1's right side back fixed connection fixed plate 15, fixed plate 15 top are equipped with contact pick up 24.
Example two
Referring to fig. 2, the other contents of the present embodiment are the same as those of the first embodiment, except that: base 1 upper surface left side is equipped with fuse 16, and drive motor 3 is connected through power cord 23 to fuse 16, fuse 16 and mains connection. Because the driving motor 3 can increase load current when receiving heavy load to can influence the use of driving motor 3, consequently set up fuse 16 between driving motor 3 and commercial power, when the electric current in the circuit is higher than the limit value, fuse 16 disconnection, thereby the normal use of protection driving motor 3 through fuse 16.
In the implementation process of the invention, a lifting rope is wound on a winding roller 17, the free end of the lifting rope penetrates through the bottom of a guide wheel 14, so that a heavy object is lifted through the lifting rope, when the heavy object is required to be lifted, a driving motor 3 is started, an output shaft of the driving motor 3 drives the winding roller 17 to rotate through transmission of a belt 4, so that the lifting rope is continuously wound outside the winding roller 17, the lifting work is realized, when the lifted heavy object is overweight, the lifting rope drives a rotating shaft 9 to move upwards, a first spring 11 deforms, the deformation amount of the spring increases along with the increase of the weight of the heavy object, so that the ascending height of the rotating shaft 9 increases, when the rotating shaft 9 is contacted with a contact sensor 24, the whole device stops, so as to prevent the device from lifting the objects exceeding the limited weight, the height of a second pressing block 12 can be adjusted through a rotating screw rod 13, so that the initial deformation amount of, thereby adjusting the elastic force of the first spring 11 when the rotary shaft 9 is in contact with the contact sensor 24, thereby changing the value of the maximum load; the overload protection device is suitable for the overload protection device of the hoisting wheel in the garden engineering construction facility working hour, the hoisting rope drives the rotating shaft 9 to rise to a certain height and then to contact with the contact sensor 24 through the contact sensor 24, so that the whole device is stopped, the protection effect is achieved, the maximum load limiting weight can be adjusted due to the screw rod 13, the ratchet wheel 18 is arranged, the problem of reverse rotation cannot occur when the whole device is in an emergency, and the overload protection device is simple to operate, safe, reliable, convenient to control and suitable for popularization and use.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. An overload prevention device for a hoisting wheel of a building tower crane comprises a base (1), wherein a first fixed seat (6) is arranged in the middle of the upper surface of the base (1), the upper part of the first fixed seat (6) is rotatably connected with a winding roller (17), the front end part of the winding roller (17) is fixedly connected with a second belt wheel (5), the second belt wheel (5) is connected with a first belt wheel (2) through a belt (4), the first belt wheel (2) is fixedly connected with an output shaft of a driving motor (3), the overload prevention device is characterized in that a second fixed seat (7) is arranged on the right side of the upper surface of the base (1), a chute (8) is arranged in the middle of the second fixed seat (7), the upper part of the chute (8) is in threaded connection with a lead screw (13), the lower end of the lead screw (13) is rotatably connected with a second pressing block (12), the lower part of the second pressing block (12) is fixedly connected, first briquetting (10) lower part is equipped with pivot (9), pivot (9) sliding connection spout (8) bottom, pivot (9) middle part is rotated and is connected leading wheel (14), the right side back fixed connection fixed plate (15) of base (1), fixed plate (15) top are equipped with contact pick up (24).
2. The overload prevention device for the hoisting wheel of the construction tower crane according to claim 1, wherein the back end of the winding roller (17) is fixedly connected with a ratchet wheel (18).
3. The overload prevention device for the hoisting wheel of the construction tower crane according to claim 1 or 2, wherein the supporting seat (19) is arranged on the back of the middle part of the base (1), the upper part of the supporting seat (19) is slidably connected with the sliding rod (21), and the upper end of the sliding rod (21) is fixedly connected with the stop pawl (22).
4. The overload prevention device for the hoisting wheel of the construction tower crane according to claim 3, wherein a second spring (20) is arranged between the bottom of the sliding rod (21) and the base (1).
5. The overload prevention device for the hoisting wheel of the construction tower crane according to claim 1, wherein the chute (8) is slidably connected with the first pressing block (10) and the second pressing block (12).
6. The overload prevention device for the hoisting wheel of the construction tower crane according to claim 1, wherein a fuse (16) is arranged on the left side of the upper surface of the base (1), and the fuse (16) is connected with the driving motor (3) through a power line (23).
7. The overload prevention device for the hoisting wheel of the construction tower crane according to claim 6, wherein the fuse (16) is connected with a commercial power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910811158.XA CN110589704A (en) | 2019-08-30 | 2019-08-30 | Building tower crane hoist wheel is with preventing overload device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910811158.XA CN110589704A (en) | 2019-08-30 | 2019-08-30 | Building tower crane hoist wheel is with preventing overload device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110589704A true CN110589704A (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910811158.XA Pending CN110589704A (en) | 2019-08-30 | 2019-08-30 | Building tower crane hoist wheel is with preventing overload device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110589704A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717825A (en) * | 2020-06-29 | 2020-09-29 | 泉州泉港协广工业机械有限公司 | Hydraulic lifting equipment's for oil-well rig pulley structure |
| CN111776971A (en) * | 2020-07-20 | 2020-10-16 | 绍兴南特起重设备有限公司 | Intelligent winch and control method thereof |
| CN114751330A (en) * | 2022-06-16 | 2022-07-15 | 南通德众科技发展有限公司 | Steel wire rope limiting device for hoisting crane barrel |
| CN115479849A (en) * | 2022-10-20 | 2022-12-16 | 泰州巨环起重防护装备有限公司 | Safety belt strength detection device for high-altitude operation |
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|---|---|---|---|---|
| SU901221A1 (en) * | 1980-05-29 | 1982-01-30 | Специальное Конструкторское Бюро "Скб-Мосстрой" Ордена Ленина Главного Управления По Жилищному И Гражданскому Строительству В Г.Москве | Safety device for load lifting gear |
| CN2167077Y (en) * | 1993-08-20 | 1994-06-01 | 广西壮族自治区第一建筑工程公司 | Device for limitting load for hoists |
| CN2353717Y (en) * | 1998-11-23 | 1999-12-15 | 杭州电机总厂 | Displacement-spring type overload limiter |
| WO2007112008A2 (en) * | 2006-03-22 | 2007-10-04 | Rollin Woodruff | Winch with tension indicator |
| CN201161869Y (en) * | 2007-12-21 | 2008-12-10 | 江苏弘盛建设工程集团有限公司 | Lift hook with over charge alarm device |
| CN203451097U (en) * | 2013-08-07 | 2014-02-26 | 中国船舶重工集团公司第七一三研究所 | Overload limiter applied to suspension lifting device |
| CN203559871U (en) * | 2013-11-26 | 2014-04-23 | 新疆大学 | Novel automatic paraffin cleaning hoist |
| CN205442470U (en) * | 2016-03-29 | 2016-08-10 | 长安大学 | Hoist engine with intelligence shutdown protection function |
| CN207511737U (en) * | 2017-11-28 | 2018-06-19 | 扬州蓝翔机电工程有限公司 | A kind of enclosed rolling open and close machine |
-
2019
- 2019-08-30 CN CN201910811158.XA patent/CN110589704A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU901221A1 (en) * | 1980-05-29 | 1982-01-30 | Специальное Конструкторское Бюро "Скб-Мосстрой" Ордена Ленина Главного Управления По Жилищному И Гражданскому Строительству В Г.Москве | Safety device for load lifting gear |
| CN2167077Y (en) * | 1993-08-20 | 1994-06-01 | 广西壮族自治区第一建筑工程公司 | Device for limitting load for hoists |
| CN2353717Y (en) * | 1998-11-23 | 1999-12-15 | 杭州电机总厂 | Displacement-spring type overload limiter |
| WO2007112008A2 (en) * | 2006-03-22 | 2007-10-04 | Rollin Woodruff | Winch with tension indicator |
| CN201161869Y (en) * | 2007-12-21 | 2008-12-10 | 江苏弘盛建设工程集团有限公司 | Lift hook with over charge alarm device |
| CN203451097U (en) * | 2013-08-07 | 2014-02-26 | 中国船舶重工集团公司第七一三研究所 | Overload limiter applied to suspension lifting device |
| CN203559871U (en) * | 2013-11-26 | 2014-04-23 | 新疆大学 | Novel automatic paraffin cleaning hoist |
| CN205442470U (en) * | 2016-03-29 | 2016-08-10 | 长安大学 | Hoist engine with intelligence shutdown protection function |
| CN207511737U (en) * | 2017-11-28 | 2018-06-19 | 扬州蓝翔机电工程有限公司 | A kind of enclosed rolling open and close machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717825A (en) * | 2020-06-29 | 2020-09-29 | 泉州泉港协广工业机械有限公司 | Hydraulic lifting equipment's for oil-well rig pulley structure |
| CN111776971A (en) * | 2020-07-20 | 2020-10-16 | 绍兴南特起重设备有限公司 | Intelligent winch and control method thereof |
| CN114751330A (en) * | 2022-06-16 | 2022-07-15 | 南通德众科技发展有限公司 | Steel wire rope limiting device for hoisting crane barrel |
| CN114751330B (en) * | 2022-06-16 | 2022-09-09 | 南通德众科技发展有限公司 | Steel wire rope limiting device for hoisting crane barrel |
| CN115479849A (en) * | 2022-10-20 | 2022-12-16 | 泰州巨环起重防护装备有限公司 | Safety belt strength detection device for high-altitude operation |
| CN115479849B (en) * | 2022-10-20 | 2024-03-26 | 泰州巨环起重防护装备有限公司 | Safety belt strength detection device for overhead operation |
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| 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: 20191220 |