CN116477504A - Limiting device and limiting method - Google Patents
Limiting device and limiting method Download PDFInfo
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- CN116477504A CN116477504A CN202310327986.2A CN202310327986A CN116477504A CN 116477504 A CN116477504 A CN 116477504A CN 202310327986 A CN202310327986 A CN 202310327986A CN 116477504 A CN116477504 A CN 116477504A
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- encoder
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- data signal
- installation space
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000006698 induction Effects 0.000 claims abstract description 14
- 239000000725 suspension Substances 0.000 claims abstract description 3
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000013524 data verification Methods 0.000 claims description 2
- 238000012795 verification Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
-
- 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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention provides a limiting device and a limiting method, wherein the limiting device comprises: the limiter comprises a limiter shell body, wherein an installation space is arranged in the limiter shell body; the input shaft traverses the limiter shell body, part of the input shaft is positioned in the installation space, and the part of the input shaft positioned in the installation space is sleeved and fixed with a first transmission gear; the first encoder is arranged in the installation space, extends out of the encoder shaft, and is fixedly connected with a second transmission gear at one end of the encoder shaft, and the first transmission gear is effectively meshed with the second transmission gear; the second encoder and the encoder shaft are in suspension induction; the circuit board is arranged in the installation space; the circuit board receives the data information of the first encoder and the second encoder at the same time, and performs real-time mutual verification of the data.
Description
Technical Field
The invention relates to the technical field of travel limiters, in particular to a limiting device and a limiting method.
Background
With the development of limiters, currently, limiters are applied to control circuits of tower cranes or port crane machines and the like. The traditional Chinese tower crane is based on the traditional application, and most of the traditional switching signal type mechanical safety protection devices are adopted. Along with industry progress and technical development, some manufacturers have fused encoders in industrial control with limiters of traditional mechanical switches, so that functions of real-time control, real-time monitoring and real-time feedback of a tower crane mechanism are realized.
However, in practical application, the electronic encoder frequently has the problem of data disorder and failure in severe environmental interference; the mechanical switch is required to perform on-site calibration in a mode of manually adjusting the displacement of the lifting mechanism, the amplitude changing mechanism and the like, and the operation is complex.
Therefore, on the premise that the limiter has failure protection in the use process, the problem that the calibration is convenient to achieve becomes a urgent need to be solved.
Disclosure of Invention
The invention solves the problem of how to realize convenient calibration on the premise that the limiter has failure protection in the use process.
In order to solve the above problems, the present invention provides a limiting device, comprising: the limiter comprises a limiter shell body, wherein an installation space is arranged in the limiter shell body; the input shaft traverses the limiter shell body, part of the input shaft is positioned in the installation space, and the part of the input shaft positioned in the installation space is sleeved and fixed with a first transmission gear; the first encoder is arranged in the installation space, extends out of the encoder shaft, and is fixedly connected with a second transmission gear at one end of the encoder shaft, and the first transmission gear is effectively meshed with the second transmission gear; the second encoder and the encoder shaft are suspended for sensing; the circuit board is arranged in the installation space; the circuit board receives the data information of the first encoder and the second encoder at the same time, and performs real-time mutual verification of the data.
Compared with the prior art, the scheme can achieve the following effects: in a specific embodiment, a first encoder and a second encoder are arranged, input signals are collected at the same time, mutual calibration is carried out, continuous real-time data are output, and an alarm signal is output to an upper computer once an error signal occurs; when the mechanism reaches the limit point, the device outputs a safety signal control signal. The safety protection device is mutually verified, controlled in real time, monitored in real time and fed back in real time. The electronic type electronic device can realize the functions of failure protection, convenient calibration, accurate control and the like which are difficult to realize mechanically and the existing electronic type, and has better safety performance.
In one embodiment of the present invention, the limiting device further comprises: the magnetic force piece is connected with one end of the encoder shaft far away from the first encoder; the circuit board and one end of the encoder shaft, which is far away from the first encoder, are suspended for induction, and a magnetic induction chip is arranged on the circuit board; the magnetic induction chip and the components of the circuit board count into a single-circle code, so that a single-circle angular displacement signal of the magnetic force piece is effectively obtained, and the circuit board can record the superposition information of the circle number to form a second encoder.
Compared with the prior art, the effect that this scheme can reach: the second encoder is not a single encoder device but co-operates by co-operation of the individual components to achieve a second encoder effect that is distinct from the first encoder. The second encoder is formed through the lap information recorded by the circuit board in the embodiment, so that a channel for acquiring lap information different from that of the first encoder is realized, and further, the result obtained by mutual calibration between the first encoder and the second encoder in the embodiment is more accurate and more persuasive.
In one embodiment of the present invention, the limiting device further comprises: the support, the support sets up in the installation space, and the magnetic force spare is supported to the one end of support, and the other end of support supports the circuit board.
Compared with the prior art, the effect that this scheme can reach: the support is arranged to improve the stability of the support for the magnetic member.
In one embodiment of the present invention, the first and second drive gears are provided with the same modulus and number of teeth.
Compared with the prior art, the effect that this scheme can reach: the transmission stage number is reduced, and the transmission error is reduced.
In one embodiment of the present invention, there is provided a limiting method, which is applicable to the limiting device according to any one of the above embodiments, and the limiting method includes: the input shaft rotates to drive the encoder shaft to rotate, the first encoder generates an angular displacement signal of the input shaft, and the real-time angular displacement signal of the input shaft is sent to the circuit board through a lead; the magnetic induction chip and the components of the circuit board are keyed in a single-circle code to obtain a single-circle angular displacement signal of the magnetic force piece; the circuit board records the lap information of the magnetic force piece to form a second encoder; the circuit board receives real-time data signals of the first encoder and the second encoder at the same time; performing real-time mutual checking on the real-time data signals; if the mutual check is unsuccessful, an alarm signal is sent to the host.
Compared with the prior art, the effect that this scheme can reach: the functions of failure protection, convenient calibration, accurate control and the like which are difficult to realize by mechanical and traditional electronic devices are realized, and the safety performance is better.
In one embodiment of the present invention, the limiting method further comprises: when the real-time data signal reaches a corresponding phase threshold value; the circuit board outputs a warning signal to the electric control equipment; outputting an on-off signal to the electronic control equipment when the real-time data signal reaches a limit threshold value; the real-time data signal is a signal for reflecting the lifting distance of the equipment, and the on-off signal is a signal for controlling the on-off of the starting and stopping of the electric control equipment; the mechanism alarm point and the limit point are directly calibrated by means of operating the stage threshold value and the limit threshold value on the upper computer.
Compared with the prior art, the effect that this scheme can reach: the functions of failure protection, convenient calibration, accurate control and the like which are difficult to realize by mechanical and traditional electronic devices are realized, and the safety performance is better.
In one embodiment of the present invention, the limiting method further comprises: the storage chip records error codes, and can transmit signals back to a manufacturer host through an upper computer network end, so that further fault analysis can be performed or user operation can be prompted.
Compared with the prior art, the effect that this scheme can reach: and further analysis of faults is realized.
In one embodiment of the present invention, the limiting method further comprises: a third encoder is arranged, and the third encoder operates normally; controlling the first encoder, the second encoder and the third encoder to calibrate each other; if the data signal of the first encoder and the data signal of the second encoder are successfully checked, the data signal of the second encoder and the data signal of the third encoder are failed to be checked; outputting a data signal of the first encoder; if the data signal of the first encoder fails to be checked with the data signal of the second encoder, the data signal of the second encoder succeeds in being checked with the data signal of the third encoder; the data signal of the second encoder is output.
Compared with the prior art, the effect that this scheme can reach: the limiting device applied by the limiting method in the embodiment can still normally operate under certain special conditions, specifically, one of the two encoders fails, only sends out error report, and the working condition is checked by stopping working; and the three encoders can still enable the sensor to normally operate even if one encoder fails.
Drawings
FIG. 1 is a schematic view of a positioning device with an upper cover removed;
FIG. 2 is a schematic diagram of a positioning device;
reference numerals illustrate:
1. a limiting device; 100. a stopper housing body; 110. an installation space; 200. an input shaft; 210. a first transmission gear; 300. a first encoder; 310. an encoder shaft; 320. a second transmission gear; 400. a circuit board; 500. a magnetic member; 600. a bracket; 700. and (5) an upper cover.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments.
Embodiment one:
referring to fig. 1 to 2, the present embodiment provides a limiting device 1, including: the stopper housing comprises a stopper housing body 100, wherein an installation space 110 is arranged in the stopper housing body 100; the input shaft 200 traverses the limiter shell body 100, part of the input shaft 200 is positioned in the installation space 110, and the part of the input shaft 200 positioned in the installation space 110 is sleeved and fixed with a first transmission gear 210; the first encoder 300, the first encoder 300 is set up in the installation space 110, the first encoder 300 stretches out of the encoder shaft 310, one end of the encoder shaft 310 fixedly connects with the second drive gear 320, the first drive gear 210 is meshed with the second drive gear 320 effectively; a second encoder, which senses in suspension with the encoder shaft 310; the circuit board 400, the circuit board 400 is set up in the installation space 110; the circuit board 400 receives the data information of the first encoder 300 and the second encoder at the same time, and performs real-time mutual verification of the data.
It should be noted that, in this embodiment, the limiting device 1 is configured to form a complete housing portion by matching the limiter housing body 100 with the upper cover 700, the limiter housing body 100 is provided with an installation space 110, and each component of the limiting device 1 is fixedly disposed in the installation space 110. The input shaft 200 penetrates through the limiter shell body 100, referring specifically to fig. 1, both ends of the input shaft 200 extend out of the limiter shell body 100 for setting, the middle section of the input shaft 200 is located in the installation space 110, meanwhile, the first transmission gear 210 is fixedly connected with the input shaft 200 in a sleeved mode, the first transmission gear 210 rotates along with rotation of the input shaft 200, meanwhile, the first transmission gear 210 is arranged on one side, close to the inner wall of the limiter shell, of the first transmission gear 210, space utilization of the installation space 110 is guaranteed, and arrangement rationality of parts of the installation space 110 is guaranteed.
The first encoder 300 is disposed adjacent to the input shaft 200, wherein the input shaft 200 is disposed on the limiting device 1, a portion of the input shaft 200 is disposed in the installation space 110, another portion of the input shaft 200 extends out of the limiter, and the input shaft 200 extending out of the limiting device 1 is connected with a working device through a coupling, where the working device may be a winch, a tower crane or a mechanism of a port crane. The lifting height of the working equipment such as a tower crane is converted into an input angular displacement signal input to the limiting device 1 through the input shaft 200, and the first encoder 300 performs the encoding operation.
Furthermore, in this embodiment, a first encoder 300 and a second encoder are provided, and input signals are collected at the same time, and are compared with each other, and then continuous real-time data is output, and once an error signal occurs, an alarm signal is output to the upper computer; when the mechanism reaches the limit point, the device outputs a safety signal control signal. The safety protection device is mutually verified, controlled in real time, monitored in real time and fed back in real time. The electronic type electronic device can realize the functions of failure protection, convenient calibration, accurate control and the like which are difficult to realize mechanically and the existing electronic type, and has better safety performance.
Furthermore, the limiting device 1 in this embodiment is provided with a plurality of encoders, the number of the encoders can be greater than two, and input signals are collected simultaneously, and preferably, the limiting device 1 in this embodiment is provided with two encoders, so that the production and manufacturing cost can be further reduced on the premise of ensuring the verification effect.
Further, it should be noted that the limiting device 1 further includes: a magnetic member 500, the magnetic member 500 being connected to an end of the encoder shaft 310 remote from the first encoder 300; the first encoder 300 is a multi-turn absolute value encoder, and the first encoder 300 is a multi-turn absolute value encoder. The circuit board 400, the circuit board 400 and one end of the encoder shaft 310 far away from the first encoder 300 are suspended for induction, and a magnetic induction chip is arranged on the circuit board 400; wherein, the magnetic induction chip and the components of the circuit board 400 count into a single circle of codes, so as to effectively obtain a single circle of angular displacement signal of the magnetic member 500, and the circuit board 400 can record the superposition information of the circle of codes to form a second encoder.
Furthermore, in the present embodiment, the second encoder is not a single encoder apparatus, but is co-operative by co-operation between respective parts to achieve an effect of the second encoder that is different from that of the first encoder 300. The second encoder is formed by the lap information recorded by the circuit board 400 in the embodiment, so that a channel for acquiring lap information different from that of the first encoder 300 is realized, and further, the result obtained by mutual calibration between the first encoder 300 and the second encoder in the embodiment is more accurate and more convincing.
Further, it should be noted that the second encoder in this embodiment is an incremental encoder.
Wherein, stop device 1 still includes: and a bracket 600, the bracket 600 being disposed in the installation space 110, one end of the bracket 600 supporting the magnetic member 500, and the other end of the bracket 600 supporting the circuit board 400.
The support 600 is attached to the first encoder 300, and the setting stability of the magnetic force piece 500 is improved due to the arrangement of the support 600, so that the magnetic force piece 500 is not driven to move by the limiting device 1 in the embodiment in the use process, and the accuracy of the magnetic force piece 500 in the limiting device 1 in the embodiment is guaranteed. Preferably, the magnetic member 500 in this embodiment is a magnetic sheet structure, and the magnetic sheet can more preferably use the installation space 110, and can also ensure the distance between the magnetic sheet and the circuit board 400.
Further, the first transmission gear 210 and the second transmission gear 320 have the same modulus and the same number of teeth, so as to form a one-to-one transmission ratio, so as to ensure that the input shaft 200 and the encoder shaft 310 rotate synchronously, reduce errors, and improve the encoding accuracy of the first encoder 300.
Wherein in some specific cases the first transmission gear 210 and the second transmission gear 320 are formed to constitute other transmission ratios.
The present embodiment further provides a limiting method, which is applicable to the limiting device 1 according to any one of the foregoing embodiments, and the limiting method includes: the rotation of the input shaft 200 drives the encoder shaft 310 to rotate, the first encoder 300 generates an angular displacement signal of the input shaft 200, and the real-time angular displacement signal of the input shaft 200 is sent to the circuit board 400 through a wire; the magnetic induction chip and the components of the circuit board 400 are keyed in a single-circle code to obtain a single-circle angular displacement signal of the magnetic member 500; the circuit board 400 records the superposition information of 500 turns of the magnetic force piece to form a second encoder; the circuit board 400 receives real-time data signals of the first encoder 300 and the second encoder at the same time; performing real-time mutual checking on the real-time data signals; if the mutual check is unsuccessful, an alarm signal is sent to the host.
Further, the limiting method further comprises the following steps: when the real-time data signal reaches a corresponding phase threshold value; the circuit board 400 outputs an alarm signal to the electronic control device; outputting an on-off signal to the electronic control equipment when the real-time data signal reaches a limit threshold value; the real-time data signal is a signal for reflecting the lifting distance of the equipment, the on-off signal is a signal for controlling the on-off of the starting and stopping of the electric control equipment, and the mechanism alarm point and the limit point are directly calibrated in a mode of operating the stage threshold value and the limit threshold value on the upper computer.
The limiting method further comprises the following steps: the storage chip records error codes, and can transmit signals back to a manufacturer host through an upper computer network end, so that further fault analysis can be performed or user operation can be prompted.
The limiting method further comprises the following steps: a third encoder is arranged, and the third encoder operates normally; controlling the first, second and third encoders 300, 300 to calibrate each other; if the data signal of the first encoder 300 and the data signal of the second encoder are successfully verified, the data signal of the second encoder and the data signal of the third encoder are failed to be verified; the data signal of the first encoder 300 is output; if the data signal of the first encoder 300 fails to verify with the data signal of the second encoder, the data signal of the second encoder succeeds in verifying with the data signal of the third encoder; the data signal of the second encoder is output.
The circuit board 400 receives the first and second encoders at the same time, performs real-time mutual data verification, and transmits the data to an output end arranged on the limiter shell, wherein the output end can be an aviation plug or a cable. As long as one of the first encoder 300 or the second encoder fails to check each other, an alarm signal is sent to the host.
It should also be noted that the first encoder 300 and the second encoder do not limit the encoder types, and the second encoder may also be in the form of a product in the access interaction circuit. The second encoder is now primarily cost effective for incremental encoders.
Wherein the device output signal is based on the signal of the first encoder 300, the second encoder acting as a correction reference.
When the second encoder is a single-turn encoder, the number of turns using the first encoder 300 should be recorded at power-up, and an error signal should be outputted when the number of turns is checked.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Claims (8)
1. A spacing device, comprising:
the limiting device comprises a limiting device shell body, wherein an installation space is arranged in the limiting device shell body;
the input shaft traverses the limiter shell body, part of the input shaft is positioned in the installation space, and a first transmission gear is sleeved and fixed on the part of the input shaft positioned in the installation space;
the first encoder is arranged in the installation space, extends out of the encoder shaft, and is fixedly connected with a second transmission gear at one end of the encoder shaft, and the first transmission gear is effectively meshed with the second transmission gear;
the second encoder and the encoder shaft are in suspension induction;
the circuit board is arranged in the installation space;
the circuit board receives the data information of the first encoder and the second encoder at the same time, and performs real-time mutual verification of data.
2. The spacing device of claim 1, further comprising:
the magnetic force piece is connected with one end, far away from the first encoder, of the encoder shaft;
the first encoder belongs to a multi-turn absolute value encoder.
The circuit board and one end, far away from the first encoder, of the encoder shaft are suspended for induction, and a magnetic induction chip is arranged on the circuit board;
the magnetic induction chip and the components of the circuit board count into single-circle codes, single-circle angular displacement signals of the magnetic force piece are effectively obtained, and the circuit board can record the superposition information of the circles to form the second encoder.
3. The spacing device of claim 2, further comprising:
the support is arranged in the installation space, one end of the support supports the magnetic force piece, and the other end of the support supports the circuit board.
4. A spacing device as claimed in claim 1, characterized in that,
the first transmission gear and the second transmission gear are provided with the same modulus and the same number of teeth.
5. A limiting method adapted to a limiting device according to any one of claims 1-4, characterized in that the limiting method comprises:
the input shaft rotates to drive the encoder shaft to rotate, the first encoder generates an angular displacement signal of the input shaft, and the angular displacement signal of the input shaft is transmitted to the circuit board in real time through a lead;
the magnetic induction chip and the components of the circuit board are keyed in a single-circle code to obtain a single-circle angular displacement signal of the magnetic force piece;
the circuit board records the lap information of the magnetic force piece to form a second encoder;
the circuit board receives real-time data signals of the first encoder and the second encoder at the same time;
performing real-time mutual calibration on the real-time data signals;
if the mutual check is unsuccessful, an alarm signal is sent to the host.
6. The spacing method of claim 5, further comprising:
when the real-time data signal reaches a corresponding phase threshold value;
the circuit board outputs an alarm signal to the electric control equipment;
when the real-time data signal reaches a limit threshold,
outputting an on-off signal to the electric control equipment;
the real-time data signal is a signal for reflecting the lifting distance of the equipment, and the on-off signal is a signal for controlling the on-off of the starting and stopping of the electric control equipment;
the mechanism alarm point and the limit point are directly calibrated by means of operating the stage threshold value and the limit threshold value on the upper computer.
7. The spacing method of claim 5, further comprising:
the storage chip records error codes, and can transmit signals back to a manufacturer host through an upper computer network end, so that further fault analysis can be performed or user operation can be prompted.
8. The spacing method according to any one of claims 5-7, characterized in that the spacing method further comprises:
a third encoder is arranged, and the third encoder operates normally;
controlling the first encoder, the second encoder and the third encoder to check each other;
if the data signal of the first encoder and the data signal of the second encoder are successfully checked, the data signal of the second encoder and the data signal of the third encoder fail to be checked;
outputting a data signal of the first encoder;
if the data signal of the first encoder fails to be checked with the data signal of the second encoder, the data signal of the second encoder and the data signal of the third encoder are checked successfully;
the data signal of the second encoder is output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310327986.2A CN116477504A (en) | 2023-03-30 | 2023-03-30 | Limiting device and limiting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310327986.2A CN116477504A (en) | 2023-03-30 | 2023-03-30 | Limiting device and limiting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116477504A true CN116477504A (en) | 2023-07-25 |
Family
ID=87216132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310327986.2A Pending CN116477504A (en) | 2023-03-30 | 2023-03-30 | Limiting device and limiting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116477504A (en) |
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2023
- 2023-03-30 CN CN202310327986.2A patent/CN116477504A/en active Pending
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