CN213445929U - Variable-amplitude limiting protection system of rubber-tyred crane - Google Patents
Variable-amplitude limiting protection system of rubber-tyred crane Download PDFInfo
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- CN213445929U CN213445929U CN202022226211.0U CN202022226211U CN213445929U CN 213445929 U CN213445929 U CN 213445929U CN 202022226211 U CN202022226211 U CN 202022226211U CN 213445929 U CN213445929 U CN 213445929U
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- module
- protection system
- sensor
- push rod
- spacing
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- 239000000725 suspension Substances 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 31
- 230000000694 effects Effects 0.000 abstract description 8
- 230000001960 triggered effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a tire crane becomes spacing protection system of width of cloth, include: the first limiting module is positioned at the joint of the depression bar and the carriage; the second limiting module is positioned at the joint of the suspension arm and the base; the control module is in communication connection with the first limiting module and the second limiting module; wherein, first spacing module and second spacing module all include sensor and push rod. The utility model discloses a set up a plurality of spacing modules in different positions to carry out the series connection with spacing module, thoroughly avoided the rubber-tyred hoist when the on-the-spot production operation, because of the too big damage of the goods that causes of the angle of variation of amplitude, thoroughly eliminated the potential safety hazard of on-the-spot in this link, guaranteed the essential safety of equipment, guaranteed going on smoothly of on-the-spot production; the tire type crane limiting protection system is simple in structure, convenient to install, high in practicability, low in investment and obvious in effect.
Description
Technical Field
The utility model relates to an engineering equipment technical field, concretely relates to rubber-tyred crane becomes spacing protection system of width of cloth.
Background
With the wide application of the rubber-tyred crane in the field production of ports, the probability of problems occurring on the field is increased, and accidents such as goods damage and machine damage caused by overlarge amplitude of the amplitude variation mechanism occur in the early stage. When the tire crane works on site, the limit switch arranged at the bottom of the lifting arm loses the protection effect, so that the over-overhead stay bar is impacted and deformed, or the lifted goods impact the vehicle body, so that the vehicle body and the goods are damaged, and the adverse effect is generated on site safety production and the technical condition of the vehicle. In actual production, the following causes of machine damage and cargo damage often occur: the limit switch belongs to a physical switch, and a certain error exists in the action process; the large arm of the rubber-tyred crane is long, and the error of the limit switch is 1mm, which is reflected on the top of the depression bar and amplified to 3 meters.
In conclusion, a variable-amplitude limiting protection system of the tire crane is needed to solve the problem of machine loss or cargo loss of the tire crane caused by limiting failure in the prior art.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned prior art problem, the utility model provides a rubber-tyred crane becomes spacing protection system of width of cloth has realized ensureing the essential safety of equipment, has ensured going on smoothly of on-the-spot production.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the variable amplitude limit protection system of the rubber-tyred crane comprises:
the first limiting module is positioned at the joint of the depression bar and the carriage;
the second limiting module is positioned at the joint of the suspension arm and the base;
the control module is in communication connection with the first limiting module and the second limiting module;
wherein, first spacing module and second spacing module all include sensor and push rod.
In some embodiments of the present invention, the first limit module comprises a first sensor and a first push rod, wherein the first sensor is provided with a first limit switch, and the first sensor is disposed on the first bending member.
In some embodiments of the present invention, the first bending member is fixed to the top of the carriage, and both ends of the bending member are respectively connected to the first bracket and the bending rod.
In some embodiments of the utility model, the pole of bowing is the telescopic link, and it includes the inner tube and rather than the outer tube that cup joints, first push rod with outer tube fixed connection.
In some embodiments of the present invention, the inner tube is rotatably connected to the first bending member, and the first push rod is used for shifting the first limit switch.
In some embodiments of the present invention, the second limit module comprises a second sensor and a second push rod, wherein the second sensor is provided with a second limit switch, and the second sensor is disposed on the second bending member.
In some embodiments of the present invention, the suspension arm is rotatably connected to the second bending member, the second push rod is fixed to the suspension arm, and the second push rod is used for shifting the second limit switch.
In some embodiments of the present invention, the first sensor and the second sensor are all connected to the control module through a cable.
In some embodiments of the invention, the first limit switch is connected in series with the second limit switch.
In some embodiments of the present invention, the second bending member is fixedly connected to the base.
The utility model discloses a theory of operation does:
when the suspension arm and the pitch pole change the amplitude, the suspension arm rotates relative to the second bent part, the pitch pole stretches and retracts, the inner pipe of the pitch pole rotates relative to the first bent part, when the first limit switch or the second limit switch is not triggered, the amplitude-changing handle is operated, the PLC control point is effective, the intermediate relay is allowed to act, the direct-current speed regulator controls the rectifier bridge to output corresponding voltage to the amplitude-changing direct-current motor, and finally the pitch pole changes the amplitude; when the first limit switch or the second limit switch is triggered, the control signal cannot be transmitted to the PLC, and the motor does not act, so that the limiting protection effect is achieved.
The technical scheme of the utility model prior art relatively has following technological effect:
the utility model discloses a set up a plurality of spacing modules in different positions to carry out the series connection with spacing module, thoroughly avoided the rubber-tyred hoist when the on-the-spot production operation, because of the too big damage of the goods that causes of the angle of variation of amplitude, thoroughly eliminated the potential safety hazard of on-the-spot in this link, guaranteed the essential safety of equipment, guaranteed going on smoothly of on-the-spot production; the tire type crane limiting protection system is simple in structure, convenient to install, high in practicability, low in investment and obvious in effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural front view of a tire type crane variable amplitude limiting protection system.
Fig. 2 is a schematic structural diagram of the first limiting protection module.
Fig. 3 is a schematic structural diagram of the second limiting protection module.
Reference numerals: 1-a suspension arm; 2-a pitch lever; 21-inner tube; 22-an outer tube; 3-a cable; 4-a first scaffold; 5-a second support; 6-a base; 7-a first limiting module; 71-a first sensor; 72-a first push rod; 73-a first limit switch; 8-a second limiting module; 81-a second sensor; 82-a second push rod; 83-a second limit switch; 9-a fixing piece; 10-a first bending member; 11-a second bending member; 12-the carriage.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The variable amplitude limit protection system of the rubber-tyred crane comprises:
the first limit module 7 is positioned at the joint of the depression bar 2 and the carriage 12;
the second limiting module 8 is positioned at the joint of the suspension arm 1 and the base 6;
the control module is in communication connection with the first limit module 7 and the second limit module 8;
the first limiting module 7 and the second limiting module 8 both comprise a sensor and a push rod.
Referring to fig. 1, which is an overall structure diagram of a variable-amplitude limiting protection system of a rubber-tyred crane, the bottom end of a suspension arm 1 is connected with the front end of a base 6, the top end of the suspension arm is provided with a fixed pulley, and a cable is connected to the fixed pulley in a penetrating manner; the rubber-tyred crane further comprises a first support 4 and a second support 5, wherein the first support 4 and one end of the pitching rod 2 are fixed to the top of the carriage 12, another fixed pulley is arranged at the intersection of the first support 4 and the second support 5, and a cable passes through the fixed pulley and then is connected with the motor. The other end of the pitch rod 2 is fixedly connected to the boom 1, which connection point is located at the lower part 1/3 of the boom 1.
Referring to fig. 2, the fixing member 9 is located at the top of the car 12, and is connected to the first bending member 10, one end of the first bending member 10 is fixed to the first bracket 4, and the other end of the first bending member 10 is rotatably connected to the inner tube 21 of the bending bar 2, because the bending bar 2 is a telescopic bar including the inner tube 21 and the outer tube 22 sleeved thereto, the bending bar 2 can be controlled by a cylinder.
Referring to fig. 3, one end of the second bending member 11 is fixed on the base 6, and the other end is rotatably connected with the boom 1.
In some embodiments of the present invention, the first limit module 7 comprises a first sensor 71 and a first push rod 72, wherein the first sensor 71 is provided with a first limit switch 73, and the first sensor 71 is provided on the first bending member 10.
In some embodiments of the present invention, the first push rod 71 is fixedly connected to the outer tube 22. The inner tube 21 is rotatably connected with the first bending part 10, and in the process of amplitude variation of the pitch arm 2, the inner tube 21 rotates relative to the first bending part 10 while the outer tube 22 and the inner tube 21 relatively slide, so that the first push rod 71 can push the first limit switch 73, thereby realizing limit control and avoiding loss caused by excessive amplitude variation of the pitch arm 2.
In some embodiments of the present invention, with continued reference to fig. 3, the second limiting module 8 comprises a second sensor 81 and a second push rod 82, wherein the second sensor 82 is provided with a second limiting switch 83, and the second sensor 82 is provided on the second bending member 11.
In some embodiments of the present invention, the second push rod 82 is fixed on the suspension arm 1, and in the process of changing the amplitude of the suspension arm 1, the suspension arm 1 rotates relative to the second bending member 11, so the second push rod 82 can trigger the second limit switch 83, and the limit control can be realized to achieve the effect of dual fail-safe.
In some embodiments of the present invention, the first sensor 71 and the second sensor 81 are both connected to the control module through a cable.
The first limit switch 73 is connected in series with the second limit switch 83. The limit switch is a common low-current master control electrical appliance, and the contact of the limit switch is operated by the collision of mechanical moving parts to realize the connection or disconnection of a control circuit, thereby achieving a certain control purpose.
In the limit protection system of the rubber-tyred crane, a limit switch is arranged at the positions of the suspension arm 1 and the base 6 in advance, and when the limit switch is arranged at the position where the second push rod 82 impacts the second limit switch 83, the limit switch acts to realize the breaking of a circuit, so that the purpose of limit protection of the rubber-tyred crane is achieved. Meanwhile, a first limiting module 7 is additionally arranged at the top of the carriage 12, and the amplitude of the bending rod 2 is controlled by the two limiting modules; when the first limit switch 73 or the second limit switch 83 is not triggered, the amplitude-variable handle is operated, the PLC control point is effective, the intermediate relay is allowed to act, the direct-current speed regulator controls the rectifier bridge to output corresponding voltage to the amplitude-variable direct-current motor, and finally the amplitude of the bending rod 2 is changed; when the first limit switch 73 or the second limit switch 83 is triggered, the control signal cannot be transmitted to the PLC, and the motor does not act, thereby playing a role of limit protection. In this case, only the reverse rotation of the dc motor is allowed, and the dive lever 2 is lowered to ensure safety.
The damage to goods and a vehicle body caused by overlarge amplitude variation angle of the rubber-tyred crane during field production operation is thoroughly avoided, the potential safety hazard of the field in the link is thoroughly eliminated, the intrinsic safety of equipment is ensured, and the smooth field production is ensured; the tire type crane limiting protection system is simple in structure, convenient to install, high in practicability, low in investment and obvious in effect.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. Tire formula hoist becomes width of cloth spacing protection system, its characterized in that includes:
the first limiting module is positioned at the joint of the depression bar and the carriage;
the second limiting module is positioned at the joint of the suspension arm and the base;
the control module is in communication connection with the first limiting module and the second limiting module;
wherein, first spacing module and second spacing module all include sensor and push rod.
2. The tire crane luffing limit protection system of claim 1, wherein the first limit module comprises a first sensor and a first push rod, wherein the first sensor is provided with a first limit switch, and the first sensor is provided on the first bending member.
3. The tire crane luffing limit protection system according to claim 2, wherein the first bending member is fixed to the top of the carriage, and both ends of the bending member are connected to the first bracket and the pitch rod, respectively.
4. The tire crane luffing limit protection system according to claim 2, wherein the pitching bar is a telescopic bar, and comprises an inner tube and an outer tube sleeved with the inner tube, and the first push rod is fixedly connected with the outer tube.
5. The tire crane luffing limit protection system of claim 4, wherein the inner tube is rotatably connected to the first bending member, and the first push rod is configured to toggle the first limit switch.
6. The tire crane luffing limit protection system of claim 2, wherein the second limit module comprises a second sensor and a second push rod, wherein the second sensor is provided with a second limit switch, and the second sensor is provided on the second bending member.
7. The tire crane luffing limit protection system according to claim 6, wherein the boom is rotatably connected to the second bending member, and the second push rod is fixed to the boom and used for toggling the second limit switch.
8. The rubber tyred crane luffing limit protection system according to claim 6, wherein the first sensor and the second sensor are both communicatively connected to the control module via a cable.
9. The rubber tyred crane luffing limit protection system of claim 6, wherein the first limit switch is in series with the second limit switch.
10. The tire crane luffing limit protection system of claim 6, wherein the second bending member is fixedly connected to the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022226211.0U CN213445929U (en) | 2020-10-09 | 2020-10-09 | Variable-amplitude limiting protection system of rubber-tyred crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022226211.0U CN213445929U (en) | 2020-10-09 | 2020-10-09 | Variable-amplitude limiting protection system of rubber-tyred crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213445929U true CN213445929U (en) | 2021-06-15 |
Family
ID=76287192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022226211.0U Expired - Fee Related CN213445929U (en) | 2020-10-09 | 2020-10-09 | Variable-amplitude limiting protection system of rubber-tyred crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213445929U (en) |
-
2020
- 2020-10-09 CN CN202022226211.0U patent/CN213445929U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210615 |
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| CF01 | Termination of patent right due to non-payment of annual fee |