CN113816274A - Tower crane overload control device detected by wheel load sensor - Google Patents
Tower crane overload control device detected by wheel load sensor Download PDFInfo
- Publication number
- CN113816274A CN113816274A CN202111265261.2A CN202111265261A CN113816274A CN 113816274 A CN113816274 A CN 113816274A CN 202111265261 A CN202111265261 A CN 202111265261A CN 113816274 A CN113816274 A CN 113816274A
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- wheel
- overload control
- brake plate
- tower crane
- type load
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000033001 locomotion Effects 0.000 claims description 21
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 9
- 238000004804 winding Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000011897 real-time detection Methods 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a tower crane overload control device detected by a wheel-fortune-type load sensor, which comprises an overload control assembly, wherein the overload control assembly comprises a slide rail, a lifting rope mounting seat and an electric motor, the wheel-fortune-type load sensor is mounted in the slide rail, the bottom surface of the lifting rope mounting seat is fixedly connected with a weight measuring block, the bottom of the side surface of the lifting rope mounting seat is fixedly connected with a supporting seat, the top surface of the supporting seat is provided with the electric motor, two electric telescopic rods are arranged in the lifting rope mounting seat, the electric telescopic rod at the upper end is connected with a first brake plate, the electric telescopic rod at the lower end is connected with a second brake plate, and the inner side surfaces of the first brake plate and the second brake plate are fixedly connected with brake plates; after adopting above-mentioned structure, through the contact of check weighing piece and wheel fortune formula load sensor during handling, the weight of accurate detection handling heavy object, through the cooperation of two braking pieces about, carries out brake control to electric motor's transmission shaft.
Description
Technical Field
The invention relates to the technical field of tower crane control, in particular to a tower crane overload control device detected by a wheel load sensor.
Background
Tower crane (tower crane) is called tower crane for short, and is a rotating crane with a movable arm mounted on the upper part of a high tower body. The device has large operation space and is mainly used for vertical and horizontal conveying of materials and installation of building components in building construction. The device consists of a metal structure, a working mechanism and an electrical system.
The existing tower crane mostly depends on observing whether a motor can lift a heavy object or not when lifting the heavy object, so as to judge whether the heavy object is overweight or not, often enables the motor to be in a limit running state in the use process of the tower crane, easily causes the damage of the motor, can not effectively judge whether the heavy object is overweight or not, has potential safety hazards, and simultaneously has no powerful braking measure when the overload occurs, so as to ensure the work safety. Therefore, we propose an overload control device for a tower crane, which uses a wheel load sensor to detect, so as to solve the above-mentioned problems.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide an overload control device of a tower crane, which is detected by a wheel-type load sensor, wherein the wheel-type load sensor and a weight measuring block are arranged in an overload control assembly, the weight measuring block is contacted with the wheel-type load sensor during hoisting, the weight of a hoisted heavy object is accurately detected, whether the heavy object is overloaded or not is judged, and the operation is carried out under the control of a PLC (programmable logic controller), so that the damage of a motor caused by the fact that the motor is in a limit operation state is avoided, and meanwhile, the matching of an upper brake disc and a lower brake disc is arranged, so that the powerful brake control is carried out on a transmission shaft of the electric motor.
The purpose of the invention can be realized by the following technical scheme:
a tower crane overload control device detected by a wheel-fortune-type load sensor comprises an overload control assembly, wherein the overload control assembly is slidably arranged on a tower crane jib support frame and can be driven to flexibly move on the tower crane jib support frame by a tower crane driving device, the overload control assembly comprises a slide rail, a lifting rope mounting seat and an electric motor, the wheel-fortune-type load sensor is arranged in the slide rail, the bottom surface of the lifting rope mounting seat is fixedly connected with a weight measuring block, the weight measuring block is contacted with the wheel-fortune-type load sensor during lifting to accurately detect the weight of a lifted heavy object, a first alarm is fixedly arranged on the top surface of the right side of the lifting rope mounting seat and is used for warning workers in a tower crane operating room, the bottom of the side surface of the lifting rope mounting seat is fixedly connected with a supporting seat, and the electric motor is arranged on the top surface of the supporting seat, wherein the front end of the electric motor is provided with a PLC controller for controlling the whole lifting process.
And two electric telescopic rods are arranged in the lifting rope mounting seat, the electric telescopic rod at the upper end is connected with a first brake plate, the electric telescopic rod at the lower end is connected with a second brake plate, brake pieces are fixedly connected to the inner side surfaces of the first brake plate and the second brake plate, and the transmission shaft of the electric motor is subjected to brake control through the matching of the upper brake piece and the lower brake piece.
As a further scheme of the invention: the two slide rails are arranged, the overload control assembly is slidably mounted on the tower crane boom support through the two slide rails, the movement stability is kept, instability caused by single sliding is avoided, the middle of the top surface of each slide rail is provided with a movement groove, the movement grooves are inverted T-shaped, and the stability of the installation of the lifting rope installation seat is guaranteed.
As a further scheme of the invention: a plurality of wheel-fortune type load sensors are installed at the middle parts of the two motion grooves, the wheel-fortune type load sensors are distributed at equal intervals, the wheel-fortune type load sensors in the two motion grooves correspond to each other in position one to one, real-time detection is carried out when the wheel-fortune type load sensors are used for hoisting heavy objects on the lifting rope mounting base, and hoisting overload and equipment damage are avoided.
As a further scheme of the invention: the joint end of each wheel load sensor penetrates through the motion groove and extends to the outside, so that equipment can be connected conveniently.
As a further scheme of the invention: the mounting groove has been seted up at the lifting rope mount pad middle part, and the mounting groove is that the opening makes progress, rotates installation rolling axle through the mounting groove, two of lifting rope mount pad bottom surface fixedly connected with survey pouring weight, two survey the pouring weight about the central symmetric distribution of lifting rope mount pad bottom surface, and two survey the position of piece and two motion groove positions corresponding, the lifting rope mount pad is installed in the motion groove in the slide rail through two survey pieces.
As a further scheme of the invention: every surveys the equal fixedly connected with a plurality of supporting spring of pouring weight bottom, and a plurality of supporting spring are linear equidistant distribution, and wherein a plurality of supporting spring set up with a plurality of wheel fortune formula load sensor in turn when actual installation.
As a further scheme of the invention: the first brake plate and the second brake plate are semicircular.
As a further scheme of the invention: first brake plate bottom surface bilateral symmetry is provided with the positioning guide pillar, and second brake plate top surface bilateral symmetry has seted up the location circular slot, and positioning guide pillar and location circular slot adaptation, through the assembly of positioning guide pillar and location circular slot, guarantees the accurate laminating of first brake plate and second brake plate, avoids producing the skew, influences the braking.
The invention has the beneficial effects that:
1. according to the invention, the first alarm and the second alarm are respectively arranged on the lifting rope mounting seat and the lifting hook, so that the warning is further carried out on the staff in the operating room of the tower crane and the staff at the bottom, and the occurrence of safety accidents is avoided.
2. According to the invention, the wheel-type load sensors are arranged in the slide rail, real-time detection is carried out when the wheel-type load sensors are used for hoisting a heavy object by the lifting rope mounting base, whether the heavy object is overloaded or not is judged, the hoisting overload is avoided, and the equipment is damaged, the joint end of each wheel-type load sensor penetrates through the motion groove and extends to the outside, so that the equipment is convenient to connect, and meanwhile, the wheel-type load sensors have the outstanding advantages of low height, high precision, good linearity, deflection load resistance, lateral force resistance and the like.
3. According to the invention, through the assembly of the positioning guide pillar and the positioning circular groove, the accurate fitting of the first brake plate and the second brake plate is ensured, the deviation is avoided, and the influence on braking is avoided.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic front view of the overall structure of the present invention;
FIG. 3 is a schematic side view of the overall structure of the present invention;
FIG. 4 is an enlarged view of the area A in FIG. 3;
FIG. 5 is a schematic view of the connection of a lifting rope mount to a slide rail according to the present invention;
FIG. 6 is a schematic view of the internal structure of the sling mounting base according to the present invention;
FIG. 7 is a schematic view of the attachment of a first brake plate, a second brake plate and a brake pad in accordance with the present invention.
In the figure: 2. an overload control assembly; 20. a slide rail; 201. a motion groove; 202. wheel load sensors; 21. a lifting rope mounting seat; 211. measuring a weight block; 212. a support spring; 213. a mounting cavity; 214. heat dissipation holes; 215. an electric telescopic rod; 216. a first brake plate; 217. a brake pad; 218. a second brake plate; 22. a winding shaft; 221. a steel wire lifting rope; 222. a hook; 23. a first alarm; 24. an electric motor; 25. a supporting seat; 26. a PLC controller.
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 1:
as shown in fig. 1-7, an overload control device for a tower crane, which is detected by a wheel-type load sensor, includes an overload control assembly 2, wherein the overload control assembly 2 is slidably mounted on a tower crane boom support, and the tower crane boom support is mounted on the tower crane, and the overload control assembly 2 can be driven by a driving device of the tower crane to flexibly move on the tower crane boom support for lifting heavy objects;
as shown in fig. 1-2, the overload control assembly 2 is provided with two slide rails 20, and the overload control assembly 2 is slidably mounted on a boom bracket of the tower crane through the two slide rails 20, so as to maintain the stability of the movement and avoid instability caused by single sliding, and the top of the two slide rails 20 is cooperatively mounted with a sling mounting seat 21, a winding shaft 22 is mounted in the sling mounting seat 21, and a steel wire sling 221 is wound in the winding shaft 22 for hoisting a heavy object, a first alarm 23 is fixedly mounted on the top surface of the right side of the sling mounting seat 21 for warning the operator in the operating room of the tower crane, a supporting seat 25 is fixedly connected to the bottom of the side surface of the sling mounting seat 21, and an electric motor 24 is mounted on the top surface of the supporting seat 25, wherein a PLC controller 26 is mounted at the front end of the electric motor 24 for controlling the whole hoisting process.
As shown in fig. 3, fig. 4 and fig. 5, two slide rails 20 are symmetrically arranged, a motion groove 201 is formed in the middle of the top surface of each slide rail 20, the motion grooves 201 are inverted T-shaped, the stability of installation of the lifting rope installation seat 21 is ensured, a plurality of wheel-fortune-type load sensors 202 are installed in the middle of each motion groove 201, the wheel-fortune-type load sensors 202 are distributed at equal intervals, the wheel-fortune-type load sensors 202 in the two motion grooves 201 correspond to each other one by one, real-time detection is performed when the wheel-fortune-type load sensors 202 are used for hoisting heavy objects on the lifting rope installation seat 21, overload is avoided, equipment is damaged, and the joint end of each wheel-fortune-type load sensor 202 extends to the outside through the motion groove 201, and equipment connection is facilitated.
Further as shown in fig. 1-7, a mounting groove is formed in the middle of the lifting rope mounting seat 21, the mounting groove is opened upwards, the winding shaft 22 is rotatably mounted through the mounting groove, the length of the mounting groove is greater than that of the winding shaft 22, so as to avoid jamming, two weight measuring blocks 211 are fixedly connected to the bottom surface of the lifting rope mounting seat 21, the two weight measuring blocks 211 are symmetrically distributed about the transverse center line of the bottom surface of the lifting rope mounting seat 21, the positions of the two weight measuring blocks 211 correspond to the positions of the two moving grooves 201, the lifting rope mounting seat 21 is mounted in the moving groove 201 of the sliding rail 20 through the two weight measuring blocks 211, wherein a plurality of support springs 212 are fixedly connected to the bottom of each weight measuring block 211, and the plurality of support springs 212 are linearly distributed at equal intervals on the bottom surface of the weight measuring block 211, wherein the plurality of support springs 212 are alternately arranged with the plurality of wheel-type load sensors 202 during actual mounting, the bottom end of each supporting spring 212 at the bottom of the two weight measuring blocks 211 is fixedly connected with the bottom surface in the motion groove 201;
furthermore, a mounting cavity 213 is formed on the mounting wall at the right end of the lifting rope mounting seat 21, a transmission shaft of the electric motor 24 penetrates through the middle of the mounting cavity 213, the transmission shaft of the electric motor 24 is connected with the winding shaft 22, electric telescopic rods 215 are mounted at the upper end and the lower end of the mounting cavity 213, the two electric telescopic rods 215 are oppositely arranged and are located at the middle position, the electric telescopic rod 215 at the upper end moves downwards, the telescopic rod is connected with a first brake plate 216, the first brake plate 216 is semicircular, positioning guide posts are symmetrically arranged at two sides of the bottom surface of the first brake plate 216, the electric telescopic rod 215 at the lower end moves upwards, the telescopic rod is connected with a second brake plate 218, the second brake plate 218 is semicircular, positioning circular grooves are symmetrically formed at two sides of the top surface of the second brake plate 218, the positioning guide posts are matched with the positioning circular grooves, and are assembled through the positioning guide posts and the positioning circular grooves, the first brake plate 216 and the second brake plate 218 are ensured to be accurately attached to each other, deviation is avoided, and brake influence is avoided, wherein the brake pads 217 are fixedly connected to the inner side surfaces of the first brake plate 216 and the second brake plate 218, and the transmission shaft of the electric motor 24 is braked and controlled through the matching of the upper brake pad 217 and the lower brake pad 217;
as shown in fig. 7, a plurality of heat dissipating holes 214 are formed in the mounting cavity 213 near the electric motor 24 for dissipating heat generated by braking.
As shown in fig. 2, the steel wire lifting rope 221 is orderly wound in the middle of the winding shaft 22, the other end of the steel wire lifting rope 221 is connected with a lifting hook 222, a second alarm is arranged on the front face of the lifting hook 222 and used for warning bottom workers and avoiding safety accidents, and the lifting hook 222 is further provided with a buckle to avoid falling off of heavy objects in the lifting process.
The PLC controller 26 in the entire overload control assembly 2 is electrically connected to the electric motor 24, the electric telescopic rod 215, the wheel load sensor 202, the first alarm 23 and the second alarm.
Furthermore, as shown in fig. 2, a certain gap is left between the bottom surface of the supporting seat 25 and the top surface of the sliding rail 20, so as to avoid affecting the vertical movement of the lifting rope mounting seat 21.
Example 2:
the working method of the overload control device comprises the following steps:
when a heavy object needs to be lifted, firstly, the PLC 26 starts the electric motor 24 to drive the winding shaft 22 to rotate, the steel wire lifting rope 221 is released, the lifting hook 222 vertically falls down, and when the height from the ground to a set position is reached, the PLC 26 stops the electric motor 24 to wait for a bottom worker to install the heavy object;
after the installation of the heavy object is finished, the PLC 26 starts a second alarm to remind a bottom worker to get away, and then the PLC 26 starts the electric motor 24 to drive the winding shaft 22 to rotate, tighten the steel wire lifting rope 221 and lift the heavy object;
when a heavy object is overloaded, the steel wire lifting rope 221 pulls the lifting rope mounting base 21 to extrude the wheel-type load sensor 202, the wheel-type load sensor 202 transmits an overload weight signal to the PLC 26, the PLC 26 cuts off the power supply of the electric motor 24, and simultaneously starts the two electric telescopic rods 215 to drive the first brake plate 216 and the second brake plate 218 to surround the transmission shaft of the electric motor 24 for braking, so that the electric motor 24 is prevented from being in a limit motion state to cause damage to the electric motor 24, and simultaneously, the heavy object is prevented from falling rapidly to cause damage, and when the PLC 26 cuts off the power supply of the electric motor 24, the first alarm 23 is started to remind a worker in the tower crane operating room of overloading and stopping operation.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The overload control device for the tower crane detected by the wheel-fork type load sensor comprises an overload control assembly (2), wherein the overload control assembly (2) is slidably mounted on a tower crane boom support, and is characterized in that the overload control assembly (2) comprises a slide rail (20), a lifting rope mounting seat (21) and an electric motor (24), the wheel-fork type load sensor (202) is mounted inside the slide rail (20), a weight measuring block (211) is fixedly connected to the bottom surface of the lifting rope mounting seat (21), and the weight measuring block (211) is in contact with the wheel-fork type load sensor (202) during lifting to accurately detect the weight of a lifted heavy object;
and two electric telescopic rods (215) are arranged in the lifting rope mounting seat (21), the electric telescopic rod (215) at the upper end is connected with a first brake plate (216), the electric telescopic rod (215) at the lower end is connected with a second brake plate (218), brake plates (217) are fixedly connected to the inner side surfaces of the first brake plate (216) and the second brake plate (218), and brake control is carried out on a transmission shaft of the electric motor (24) through the matching of the upper brake plate and the lower brake plate (217).
2. The overload control device for the tower crane, which is detected by the wheel-type load sensor, according to claim 1, wherein two slide rails (20) are provided, a moving groove (201) is formed in the middle of the top surface of each slide rail (20), and each moving groove (201) is in an inverted T shape.
3. The overload control device for the tower crane, which is detected by the wheel-type load sensors, according to claim 2, wherein a plurality of wheel-type load sensors (202) are installed in the middle of each of the two motion grooves (201), and the wheel-type load sensors (202) are distributed at equal intervals.
4. The overload control device for the tower crane, which is detected by the wheel load sensors, according to claim 3, wherein the joint end of each wheel load sensor (202) extends to the outside through the motion slot (201).
5. The overload control device for the tower crane, which is detected by the wheel-type load sensor, according to claim 4, wherein two weight measuring blocks (211) are fixedly connected to the bottom surface of the lifting rope mounting seat (21), and the positions of the two weight measuring blocks (211) correspond to the positions of the two moving grooves (201).
6. The overload control device for the tower crane, which is detected by the wheel-type load cell according to claim 5, wherein a plurality of support springs (212) are fixedly connected to the bottom of each weight measuring block (211), and the plurality of support springs (212) are linearly and equidistantly distributed.
7. The overload control apparatus for a tower crane according to claim 1, wherein the first brake plate (216) and the second brake plate (218) are each semi-circular in shape.
8. The overload control device for the tower crane, which is detected by the wheel-type load sensor, according to claim 7, wherein the first brake plate (216) is symmetrically provided with positioning guide posts on both sides of the bottom surface thereof, the second brake plate (218) is symmetrically provided with positioning circular grooves on both sides of the top surface thereof, and the positioning guide posts are matched with the positioning circular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111265261.2A CN113816274A (en) | 2021-10-28 | 2021-10-28 | Tower crane overload control device detected by wheel load sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111265261.2A CN113816274A (en) | 2021-10-28 | 2021-10-28 | Tower crane overload control device detected by wheel load sensor |
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| Publication Number | Publication Date |
|---|---|
| CN113816274A true CN113816274A (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111265261.2A Pending CN113816274A (en) | 2021-10-28 | 2021-10-28 | Tower crane overload control device detected by wheel load sensor |
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| CN (1) | CN113816274A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040129899A1 (en) * | 2002-10-02 | 2004-07-08 | Bernd Gombert | Position and/or movement sensor with overload protection |
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| CN202400773U (en) * | 2011-12-22 | 2012-08-29 | 江阴大地装备股份有限公司 | Steel cable load detection device |
| US20130283933A1 (en) * | 2012-04-27 | 2013-10-31 | Hon Hai Precision Industry Co., Ltd. | Pressure detection device |
| CN206203754U (en) * | 2016-11-21 | 2017-05-31 | 盐城海特机械科技有限公司 | A kind of safe anchor winch peculiar to vessel |
| CN106744548A (en) * | 2017-01-18 | 2017-05-31 | 徐工消防安全装备有限公司 | A kind of novel working platform weighing device |
| CN107381368A (en) * | 2017-09-07 | 2017-11-24 | 南宁众创空间科技有限公司 | A kind of adjustable hanging apparatus for building |
| CN108502761A (en) * | 2018-03-31 | 2018-09-07 | 江西中天机械有限公司 | A kind of boom hoisting of the derrick crane with overload self-unloading function |
| CN109520649A (en) * | 2018-10-19 | 2019-03-26 | 中联重科股份有限公司 | Force cell, force cell assembly, lifting hook and crane |
| CN212158766U (en) * | 2020-06-12 | 2020-12-15 | 蚌埠市腾辉机电科技有限公司 | Spoke type weighing sensor |
-
2021
- 2021-10-28 CN CN202111265261.2A patent/CN113816274A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040129899A1 (en) * | 2002-10-02 | 2004-07-08 | Bernd Gombert | Position and/or movement sensor with overload protection |
| CN101244790A (en) * | 2008-03-27 | 2008-08-20 | 石家庄开发区益通科技有限公司 | Mechanical weighing mechanism of high pedestal jib crane dynamic grab bucket electronic weighing scale |
| CN202400773U (en) * | 2011-12-22 | 2012-08-29 | 江阴大地装备股份有限公司 | Steel cable load detection device |
| US20130283933A1 (en) * | 2012-04-27 | 2013-10-31 | Hon Hai Precision Industry Co., Ltd. | Pressure detection device |
| CN206203754U (en) * | 2016-11-21 | 2017-05-31 | 盐城海特机械科技有限公司 | A kind of safe anchor winch peculiar to vessel |
| CN106744548A (en) * | 2017-01-18 | 2017-05-31 | 徐工消防安全装备有限公司 | A kind of novel working platform weighing device |
| CN107381368A (en) * | 2017-09-07 | 2017-11-24 | 南宁众创空间科技有限公司 | A kind of adjustable hanging apparatus for building |
| CN108502761A (en) * | 2018-03-31 | 2018-09-07 | 江西中天机械有限公司 | A kind of boom hoisting of the derrick crane with overload self-unloading function |
| CN109520649A (en) * | 2018-10-19 | 2019-03-26 | 中联重科股份有限公司 | Force cell, force cell assembly, lifting hook and crane |
| CN212158766U (en) * | 2020-06-12 | 2020-12-15 | 蚌埠市腾辉机电科技有限公司 | Spoke type weighing sensor |
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