CN111332934A - Mechanical automatic locking device between lifting appliance and skid - Google Patents
Mechanical automatic locking device between lifting appliance and skid Download PDFInfo
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- CN111332934A CN111332934A CN202010152802.XA CN202010152802A CN111332934A CN 111332934 A CN111332934 A CN 111332934A CN 202010152802 A CN202010152802 A CN 202010152802A CN 111332934 A CN111332934 A CN 111332934A
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- comparator
- connecting part
- diode
- operational amplifier
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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
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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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
- B66C15/065—Arrangements or use of warning devices electrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a mechanical automatic locking device between a lifting appliance and a skid, which comprises: a column; a locking fulcrum, comprising: the lifting appliance comprises a lifting appliance connecting piece, a locking hook and a counterweight device; the locking couple includes: the lower end of the first connecting part is rotatably connected with one side of the lifting appliance connecting piece; the hook part is fixedly connected to the upper end of the first connecting part; the second connecting part is arranged on one side of the first connecting part, the first end of the second connecting part is fixedly connected with the lower end of the first connecting part, and the second end of the second connecting part is fixedly connected with the counterweight device; the top end of the hanger connecting piece is provided with a groove, and when the hanger is lifted, one side of the hook part, which is far away from the first connecting part, is matched and locked with one side of the groove under the action of the gravity of the counterweight device. The invention realizes automatic locking of the lifting appliance, thoroughly replaces manual locking, has a pure mechanical structure, has simple structure and reliable operation, has no energy consumption in the using process, and can greatly save the equipment cost and the labor cost by using the product.
Description
Technical Field
The invention relates to the technical field of locking devices, in particular to a mechanical automatic locking device between a lifting appliance and a skid.
Background
At present, the locking mode between a lifting appliance and a skid of domestic manufacturers is mostly manually locked, and the rest small part is locked pneumatically or electrically; the former wastes manpower, and the latter consumes energy and has a complex structure and higher manufacturing cost.
Disclosure of Invention
The invention provides a mechanical automatic locking device between a lifting appliance and a skid, which is used for solving the technical problem.
A mechanical automatic locking device between a lifting appliance and a skid comprises:
a column;
a locking fulcrum, comprising: the lifting appliance comprises a lifting appliance connecting piece, a locking hook and a counterweight device;
the locking hook includes: the lower end of the first connecting part is rotatably connected with one side of the lifting appliance connecting piece; the hook part is fixedly connected to the upper end of the first connecting part; the second connecting part is arranged on one side of the first connecting part, the first end of the second connecting part is fixedly connected with the lower end of the first connecting part, and the second end of the second connecting part is fixedly connected with the counterweight device;
the top end of the hanger connecting piece is provided with a groove, and when the hanger ascends, under the action of gravity of the counterweight device, one side of the hook part, which is far away from the first connecting part, is matched and locked with one side of the groove.
Preferably, the method further comprises the following steps: locking the hook limiting device;
locking couple stop device includes:
the first stop block is arranged on one side of the hanger connecting piece, where the locking hook is arranged, and is positioned below the locking hook;
and the second stop block is fixedly connected to one side of the first stop block close to the hook part.
Preferably, the second connection portion includes: one end of the straight line section is fixedly connected with the lower end of the first connecting part; one end of the counterweight device connecting section is fixedly connected with the other end of the straight section;
the first stop block is horizontally arranged.
Preferably, the first stop block is connected with the hanger connecting piece through a bolt.
Preferably, the lifting appliance further comprises a pin shaft fixedly connected to the second end of the second connecting part and located on one side, close to the lifting appliance connecting piece, of the second connecting part;
one side of the upright column close to the locking fulcrum is provided with a sliding groove, and when the lifting appliance descends, the pin shaft slides in the sliding groove.
Preferably, the first connecting part, the second connecting part and the hook part are integrally formed.
Preferably, the device further comprises a shock absorbing device, wherein the shock absorbing device comprises:
one end of the fixed rod is fixedly connected with one side of the lifting appliance connecting piece;
the inner ring of the bearing is fixedly sleeved on the outer wall of the other end of the fixed rod;
the first connecting part is provided with a through hole, and the inner wall of the through hole is fixedly sleeved with the outer ring of the bearing;
the spring is arranged between the first connecting part and one side of the lifting appliance connecting part, the spring is sleeved on the outer wall of the fixed rod, one end of the spring is fixedly connected with one side of the lifting appliance connecting part, and the other end of the spring is fixedly connected with the first connecting part.
Preferably, the method further comprises the following steps:
a vibration sensor provided on the second connection portion;
the distance sensor is arranged at the top end of the hanger connecting piece;
the distance sensor is used for sensing the distance of the sensing block;
the controller and the power supply are respectively electrically connected with the vibration sensor, the distance sensor and the power supply, and the controller is further connected with an alarm.
Preferably, the distance sensor is connected with the controller through a first signal processing circuit, the vibration sensor is connected with a vibration sensor detection device, and the vibration sensor detection device is connected with the controller through a second signal processing circuit;
the first signal processing circuit includes: the inverting input end of the second operational amplifier is connected with the distance sensor, and the non-inverting input end of the second operational amplifier is grounded;
one end of the eighteenth resistor is connected with the inverting input end of the second operational amplifier, and the other end of the eighteenth resistor is connected with the output end of the second operational amplifier;
one end of the fifth capacitor is connected with the inverting input end of the second operational amplifier, and the other end of the fifth capacitor is connected with the output end of the second operational amplifier;
the non-inverting input end of the first operational amplifier is connected with the output end of the second operational amplifier, and the inverting input end of the first operational amplifier is grounded through a sixteenth resistor;
one end of the fifteenth resistor is connected with the inverting input end of the first operational amplifier, and the other end of the fifteenth resistor is connected with the output end of the first operational amplifier;
the non-inverting input end of the third operational amplifier is connected with the output end of the first operational amplifier, the inverting input end of the third operational amplifier is grounded through a seventeenth resistor, and the output end of the third operational amplifier is connected with the controller;
the anode of the first diode is connected with the output end of the third operational amplifier, and the cathode of the first diode is grounded through a fourth capacitor;
one end of the variable resistor is connected with the inverting input end of the third operational amplifier and the cathode of the first diode, and the other end of the variable resistor is grounded;
the second signal processing circuit includes:
the first end of the sixth resistor is connected with the output end of the vibration sensor detection device, and the second end of the sixth resistor is grounded through the first capacitor;
the positive input end of the first comparator is connected with the second end of the sixth resistor, and the output end of the first comparator is connected with the controller;
one end of the seventh resistor is connected with the negative input end of the first comparator, and the other end of the seventh resistor is grounded;
a first end of the ninth resistor is connected with the output end of the first comparator, a second end of the ninth resistor is connected with a first end of the eighth resistor, and a second end of the eighth resistor is connected with the negative input end of the first comparator;
the negative electrode of the second diode is connected with the second end of the ninth resistor, and the positive electrode of the second diode is grounded;
one end of the third capacitor is connected with the negative input end of the first comparator, and the other end of the third capacitor is grounded;
one end of the second capacitor is connected with the power supply end of the first comparator, and the other end of the second capacitor is connected with the output end of the first comparator;
the first end of the eleventh resistor is connected with the output end of the vibration sensor detection device, and the second end of the eleventh resistor is grounded through the seventh capacitor;
the negative input end of the second comparator is connected with the second end of the eleventh resistor, and the output end of the second comparator is connected with the controller;
one end of the tenth resistor is connected with the power supply end of the second comparator, and the other end of the tenth resistor is connected with the output end of the second comparator;
a twelfth resistor, a first end of which is connected with the power supply, a second end of which is connected with one end of a thirteenth resistor, and the other end of the thirteenth resistor is connected with the positive input end of the second comparator;
one end of the fourteenth resistor is connected with the positive input end of the second comparator, and the other end of the fourteenth resistor is grounded;
and the anode of the sixth diode is grounded, and the cathode of the sixth diode is connected with the second end of the twelfth resistor.
Preferably, the vibration sensor is further connected with an indicating circuit, and the indicating circuit includes:
a first end of the fifth resistor is connected with the output end of the vibration sensor;
the anode of the fourth diode is connected with the second end of a fifth resistor, the cathode of the third diode is connected with the second end of the fifth resistor, the cathode of the fourth diode is connected with the ground through the fourth resistor, and the anode of the third diode is connected with a power supply through a second resistor;
the positive input end of the third comparator is connected with the negative electrode of the fourth diode, and the negative input end of the third comparator is connected with the positive electrode of the third diode;
one end of the first resistor is connected with a power supply;
the anode of the fifth diode is connected with the other end of the first resistor, and the cathode of the fifth diode is connected with the output end of the first comparator;
and one end of the sixth capacitor is connected with the anode of the fifth diode, and the other end of the sixth capacitor is connected with the output end of the first comparator.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the locking device of the present invention for locking when a spreader is lifted.
Fig. 2 is a schematic structural view of the locking device of the present invention which is opened when the spreader is lowered.
Fig. 3 is a structural schematic diagram of the locking fulcrum locking of the invention.
Fig. 4 is a structural schematic diagram of the locking fulcrum opening of the invention.
Fig. 5 is a schematic structural diagram of the column of the present invention.
Fig. 6 is a schematic structural view of an embodiment of the shock absorbing device of the present invention.
Fig. 7 is a circuit diagram of a first signal processing circuit, a second signal processing circuit and an indication circuit according to the present invention.
In the figure: 1. a column; 11. a chute; 2. locking a fulcrum; 21. a spreader linkage; 211. a groove; 22. locking the hook; 221. a hook portion; 222. a first connection portion; 223. a second connecting portion; 2231. a straight line segment; 2232. a counterweight device connecting section; 23. a counterweight device; 3. locking the hook limiting device; 31. a first stopper; 32. a second stopper; 4. a pin shaft; 5. a damping device; 51. fixing the rod; 52. a bearing; 53. a through hole; 54. a spring; r1, a first resistor; r2, a second resistor; r3, third resistor; r4, fourth resistor; r5, fifth resistor; r6, sixth resistor; r7, seventh resistor; r8, eighth resistor; r9, ninth resistor; r10, tenth resistor; r11, eleventh resistor; r12, twelfth resistor; r13, thirteenth resistor; r14, fourteenth resistance; r15, fifteenth resistor; r16, sixteenth resistor; r17, seventeenth resistor; r18, eighteenth resistor; r19, variable resistance; c1, a first capacitance; c2, a second capacitor; c3, a third capacitance; c4, a fourth capacitance; c5, a fifth capacitance; c6, a sixth capacitor; c7, a seventh capacitance; u1, a third comparator; u2, a second operational amplifier; u3, third operational amplifier; u4, a first comparator; u5, a first operational amplifier; u6, a second comparator; d1, a first diode; d2, a second diode; d3, a third diode; d4, a fourth diode; d5, a fifth diode; d6, a sixth diode; A. the lower end of the hanger connecting piece.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
The embodiment of the invention provides a mechanical automatic locking device between a lifting appliance and a skid, as shown in fig. 1-5, comprising:
a column 1;
the locking fulcrum 2 includes: a hanger connecting piece 21, a locking hook 22 and a counterweight device 23;
the locking hook 22 includes: a first connecting part 222, the lower end of the first connecting part 222 being rotatably connected to one side of the spreader connecting part 21 (as shown in fig. 1-5, the lower end can be correspondingly a front side, and can be rotatably connected through a connecting rotating shaft); a hook part 221 fixedly connected to an upper end of the first connection part 222; a second connecting portion 223 disposed at one side of the first connecting portion 222, wherein a first end of the second connecting portion 223 is fixedly connected with a lower end of the first connecting portion 222, and a second end of the second connecting portion 223 is fixedly connected with the counterweight device 23;
the top end of the hanger connecting piece 21 is provided with a groove 211, and when the hanger is lifted, under the action of gravity of the counterweight device 23, one side of the hook part 221, which is far away from the first connecting part 222, is matched and locked with one side of the groove 211. The hanger connecting piece 21 is used for connecting a hanger, as shown in fig. 3-4, the lower end a of the hanger connecting piece is used for connecting the hanger, and the hanger is used for connecting a conveying mechanism, such as a suspension conveyor, and the conveying mechanism drives the hanger to ascend, descend and convey, and the hanger structure and the connection of the hanger and the conveying mechanism are the prior art, and are not described herein again. The hook part is used for hooking the groove and the inner side of the hook part
Preferably, the lifting appliance further comprises a pin 4 fixedly connected to a second end of the second connecting portion 223 and located on one side (corresponding to the rear side in fig. 1-5) of the second connecting portion 223 close to the lifting appliance connecting member 21; a sliding groove 11 is formed in one side, close to the locking fulcrum 2, of the upright post 1, and when the lifting appliance descends, the pin shaft 4 slides in the sliding groove 11. Preferably, as shown in fig. 1-2, one side of the upright column close to the hanger connecting piece 21 is an inclined surface, and the pin 4 slides in the sliding groove, so that the pin can be guided conveniently, and the movement reliability of the invention is improved.
The invention can be used for automatic locking of the lifting appliance in the process of loading and unloading workpieces before (automobile) pretreatment. When the workpiece needs to be pretreated, the workpiece is placed on the skid and placed at the designated position, then the conveying mechanism is started to lower the lifting appliance to the position where the workpiece skid is located, the hook portion in the locking device connected to the lifting appliance is used for hooking the workpiece skid, the hooking position of the workpiece skid is limited between the inner side of the groove 211 and the inner side of the hook portion, and locking is achieved.
The working principle of the technical scheme is as follows: a. when the lifting appliance descends, and the pin shaft 4 connected with the locking hook on the locking device impacts the rigid upright post on the ground, the second connecting part 223 of the locking hook rotates upwards to open the locking hook 22.
b. When the hanger is lifted, the counterweight device on the locking hook 22 depends on gravity, so that the second connecting part of the locking hook rotates downwards, and under the action of gravity of the counterweight device 23, one side of the hook part 221, which is far away from the first connecting part 222, is matched and locked with one side of the groove 211, so that the locking hook is automatically locked.
The beneficial effects of the above technical scheme are: the invention realizes automatic locking of the lifting appliance, thoroughly replaces manual locking, has a pure mechanical structure, has simple structure and reliable operation, has no energy consumption in the using process, and can greatly save the equipment cost and the labor cost by using the product.
In one embodiment, as shown in fig. 1-5, further comprising: locking the hook limiting device 3;
locking couple stop device 3 includes:
the first stop block 31 is arranged on one side of the hanger connecting piece 21, which is provided with the locking hook 22, and is positioned below the locking hook 22;
and a second stopper 32 fixedly connected to one side of the first stopper 31 close to the hook 221. Preferably, the first stopper and the second stopper are integrally formed, and the integrally formed stopper has the advantage of high structural reliability.
The working principle and the beneficial effects of the technical scheme are as follows: the locking hook limiting device is used for limiting the movement of the locking hook, so that the locking and unlocking switching can be realized conveniently and quickly, and the working efficiency is improved. The locking hook limiting device has the advantage of simple structure, can limit the upward rotation and downward rotation of the second connecting part of the locking hook, and is reliable in limiting.
In one embodiment, as shown in figures 1-5,
the second connection portion 223 includes: a straight line section 2231, wherein one end of the straight line section 2231 is fixedly connected with the lower end of the first connecting part 222; a counterweight device connecting section 2232, one end of which is fixedly connected with the other end of the straight section 2231;
the first stopper 31 is horizontally disposed.
The working principle and the beneficial effects of the technical scheme are as follows: among the above-mentioned technical scheme, first dog 31 level sets up, and second connecting portion 223 includes the straightway, and first dog is spacing to the motion of straightway, and plane contact is spacing, has spacing reliable advantage.
In one embodiment, the first stop 31 is bolted to the spreader link 21.
The working principle and the beneficial effects of the technical scheme are as follows: the structure is convenient for dismounting and mounting the locking hook limiting device 3.
In one embodiment, the first connecting portion 222, the second connecting portion 223 and the hook portion 221 are integrally formed.
The working principle and the beneficial effects of the technical scheme are as follows: the integral forming has the advantages of firm structure and high reliability, thereby improving the working reliability of the invention.
In one embodiment, as shown in fig. 6, the device further comprises a shock absorbing device 5, wherein the shock absorbing device 5 comprises:
one end of the fixing rod 51 is fixedly connected with one side of the hanger connecting piece 21;
the inner ring of the bearing 52 is fixedly sleeved on the outer wall of the other end (front end) of the fixed rod 51;
the first connecting part 222 is provided with a through hole 53, and the inner wall of the through hole 53 is fixedly sleeved with the outer ring of the bearing 52;
the spring 54 is arranged between the first connecting part 222 and the one side of the hanger connecting part 21, the spring 54 is sleeved on the outer wall of the fixing rod 51, one end of the spring 54 is fixedly connected with the one side of the hanger connecting part 21, and the other end of the spring 54 is fixedly connected with the first connecting part 222.
Corresponding to fig. 1, the first connecting part is rotatably connected to the front side of the hanger connecting part, preferably, a mounting hole can be formed in the front side surface of the hanger connecting part, the rear part of the fixing rod is fixedly connected in the mounting hole, the front end of the fixing rod penetrates out of the front side of the hanger connecting part, and the spring is arranged in the mounting hole, so that the movement of the spring is guided conveniently, and the damping effect of the invention is improved;
the working principle and the beneficial effects of the technical scheme are as follows: the structure of above-mentioned dead lever and bearing is convenient for realize that first connecting portion rotate to be connected in hoist connecting piece one side, and connects reliably, and sets up the spring and connect locking couple and hoist connecting piece, and the work piece of connecting receives the collision on hoist or hoist, and when producing the vibration, the vibration can offset (the shock attenuation) through the spring, avoids producing the operational reliability that great vibration influences the locking couple because the collision.
In one embodiment, further comprising:
a vibration sensor provided on the second connection portion 223;
the distance sensor is arranged at the top end of the hanger connecting piece 21;
the sensing block is arranged on the hook part 221, and the distance sensor is used for sensing the distance of the sensing block;
the controller and the power supply are respectively electrically connected with the vibration sensor, the distance sensor and the power supply, and the controller is further connected with an alarm.
The working principle and the beneficial effects of the technical scheme are as follows: when the lifting appliance starts to ascend, the controller controls the distance sensor to work, the distance sensor is used for sensing distance value information of the sensing block and transmitting the distance value information to the controller, a distance standard value is preset in the controller, when the distance value sensed by the distance sensor is larger than the distance standard value, the locking hook is in an open state, the controller controls the alarm to give an alarm, so that a worker can conveniently overhaul, and the reliability and the safety of the lifting appliance are improved;
the vibration sensor is used for collecting vibration frequency generated when the locking hook collides with an object in the rising process, converting the collected vibration frequency signal into an electric signal corresponding to the vibration frequency signal and transmitting the electric signal to the controller, and the controller records and analyzes the electric signal data and controls the alarm to give an alarm when the vibration frequency corresponding to the electric signal data obtained through analysis exceeds a set collision alarm threshold value so as to timely remind a worker to take relevant measures.
The technical scheme is convenient for improving the working reliability of the invention.
In one embodiment, the distance sensor is connected with the controller through a first signal processing circuit, the vibration sensor is connected with a vibration sensor detection device, and the vibration sensor detection device is connected with the controller through a second signal processing circuit; the vibration sensor detection device is used for detecting the vibration sensor, and for example, the vibration sensor detection device comprises a current transformer which is connected to a circuit of the vibration sensor and used for inducing current. If the vibration sensor is connected to a circuit for connecting the vibration sensor with a power supply, a switch is arranged on the circuit for connecting the vibration sensor with the power supply, and the switch is controlled by a controller;
as shown in fig. 7, the first signal processing circuit includes: the inverting input end of the second operational amplifier U2 is connected with the distance sensor, and the non-inverting input end of the second operational amplifier U2 is grounded;
an eighteenth resistor R18, one end of which is connected to the inverting input terminal of the second operational amplifier U2 and the other end of which is connected to the output terminal of the second operational amplifier U2;
one end of the fifth capacitor C5 is connected with the inverting input end of the second operational amplifier U2, and the other end of the fifth capacitor C5 is connected with the output end of the second operational amplifier U2;
the non-inverting input end of the first operational amplifier is connected with the output end of the second operational amplifier U2, and the inverting input end of the first operational amplifier is grounded through a sixteenth resistor R16;
a fifteenth resistor R15, one end of which is connected to the inverting input terminal of the first operational amplifier and the other end of which is connected to the output terminal of the first operational amplifier;
the non-inverting input end of the third operational amplifier U3 is connected with the output end of the first operational amplifier, the inverting input end of the third operational amplifier U3 is grounded through a seventeenth resistor R17, and the output end of the third operational amplifier U3 is connected with the controller;
the anode of the first diode D1 is connected with the output end of the third operational amplifier U3, and the cathode of the first diode D1 is grounded through a fourth capacitor C4;
one end of the variable resistor R19 is connected with the inverting input end of the third operational amplifier U3 and the negative electrode of the first diode D1, and the other end is grounded;
the second signal processing circuit includes:
a first end of the sixth resistor R6 is connected with the output end of the vibration sensor detection device, and a second end of the sixth resistor R6 is grounded through the first capacitor C1;
a positive input end of the first comparator U4 is connected with the second end of the sixth resistor R6, and an output end of the first comparator U4 is connected with the controller;
one end of the seventh resistor R7 is connected with the negative input end of the first comparator U4, and the other end of the seventh resistor R7 is grounded;
a ninth resistor R9, a first end of which is connected to the output end of the first comparator U4, a second end of which is connected to the first end of the eighth resistor R8, and a second end of the eighth resistor R8 is connected to the negative input end of the first comparator U4;
the cathode of the second diode D2 is connected with the second end of the ninth resistor R9, and the anode of the second diode D2 is grounded;
one end of the third capacitor C3 is connected with the negative input end of the first comparator U4, and the other end of the third capacitor C3 is grounded;
a second capacitor C2, one end of which is connected with the power supply terminal of the first comparator U4, and the other end of which is connected with the output terminal of the first comparator U4;
the first end of the eleventh resistor R11 is connected with the output end of the vibration sensor detection device, and the second end of the eleventh resistor R11 is grounded through the seventh capacitor C7;
a negative input end of the second comparator U6 is connected with a second end of the eleventh resistor R11, and an output end of the second comparator U6 is connected with the controller;
a tenth resistor R10, having one end connected to the power supply terminal of the second comparator U6 and the other end connected to the output terminal of the second comparator U6;
a twelfth resistor R12, having a first end connected to the power supply, a second end connected to one end of a thirteenth resistor R13, and the other end of the thirteenth resistor R13 connected to the positive input end of a second comparator U6;
a fourteenth resistor R14, having one end connected to the positive input end of the second comparator U6 and the other end grounded;
and the anode of the sixth diode D6 is grounded, and the cathode of the sixth diode D6 is connected with the second end of the twelfth resistor R12. D6 and D2 are voltage stabilizing diodes;
the working principle and the beneficial effects of the technical scheme are as follows:
the first signal processing circuit amplifies the signal twice through U5 and U2, compares the signal with a preset standard value through U3, and improves the stability and reliability of the circuit through C4, C5 and D1; the second signal circuit can perform short circuit detection and short circuit detection, alarm information is timely transmitted to the controller when the vibration sensor is in a short circuit or an open circuit, the controller automatically cuts off the connection between the vibration sensor and a power supply, D6, D2 and C3 in the second signal processing circuit are used for stabilizing voltage, R12 is used for limiting voltage, and the second signal processing circuit can ensure that the vibration sensor can reliably work, so that the working reliability of the vibration sensor is improved.
In one embodiment, as shown in fig. 7, the vibration sensor is further connected with an indication circuit, the indication circuit includes:
a first end of the fifth resistor R5 is connected with the output end of the vibration sensor;
a fourth diode D4 and a third diode D3, wherein the anode of the fourth diode D4 is connected to the second end of the fifth resistor R5, the cathode of the third diode D3 is connected to the second end of the fifth resistor R5, the cathode of the fourth diode D4 is connected to the ground through the fourth resistor R4, and the anode of the third diode D3 is connected to the power supply through the second resistor R2;
a positive input end of the third comparator U1 is connected with the negative electrode of the fourth diode D4, and a negative input end of the third comparator U1 is connected with the positive electrode of the third diode D3;
a first resistor R1, one end of which is connected with a power supply;
the anode of the fifth diode D5 is connected with the other end of the first resistor R1, and the cathode of the fifth diode D5 is connected with the output end of the first comparator U4; the fifth diode D5 is a light emitting diode.
One end of the sixth capacitor C6 is connected to the anode of the fifth diode D5, and the other end is connected to the output end of the first comparator U4.
The working principle and the beneficial effects of the technical scheme are as follows: d3, D4, D5 and U1 in the technical scheme are used for indicating the working state of the vibration sensor in real time, and the indicating circuit works reliably, so that workers can know the working state of the vibration sensor in time, the vibration sensor is convenient to overhaul in time when problems occur, and the reliability of the vibration sensor is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides an automatic locking device of mechanical type between hoist and the skid which characterized in that includes:
a column (1);
locking fulcrum (2), comprising: a hanger connecting piece (21), a locking hook (22) and a counterweight device (23);
the locking hook (22) comprises: the lower end of the first connecting part (222) is rotatably connected with one side of the hanger connecting piece (21); a hook part (221) fixedly connected to the upper end of the first connecting part (222); the second connecting part (223) is arranged on one side of the first connecting part (222), the first end of the second connecting part (223) is fixedly connected with the lower end of the first connecting part (222), and the second end of the second connecting part (223) is fixedly connected with the counterweight device (23);
the top end of the hanger connecting piece (21) is provided with a groove (211), and when the hanger is lifted, one side of the hook part (221) far away from the first connecting part (222) is matched and locked with one side of the groove (211) under the action of gravity of the counterweight device (23).
2. The device of claim 1, further comprising: a hook locking and limiting device (3);
locking couple stop device (3) include:
the first stop block (31) is arranged on one side, provided with the locking hook (22), of the lifting appliance connecting piece (21) and is positioned below the locking hook (22);
and the second stop block (32) is fixedly connected to one side, close to the hook part (221), of the first stop block (31).
3. The mechanical automatic locking device between a lifting appliance and a skid according to claim 2,
the second connection portion (223) includes: one end of the straight line section (2231) is fixedly connected with the lower end of the first connecting part (222); a counterweight device (23) connecting section (2232), one end of which is fixedly connected with the other end of the straight section (2231);
the first stopper (31) is horizontally arranged.
4. The mechanical automatic locking device between a spreader and a skid according to claim 2, wherein the first stopper (31) is connected with the spreader connecting member (21) by a bolt.
5. The mechanical automatic locking device between a lifting appliance and a skid according to claim 1,
the lifting appliance connecting piece is characterized by also comprising a pin shaft (4) which is fixedly connected to the second end of the second connecting part (223) and is positioned on one side of the second connecting part (223) close to the lifting appliance connecting piece (21);
one side of the upright post (1) close to the locking fulcrum (2) is provided with a sliding groove (11), and when the lifting appliance descends, the pin shaft (4) slides in the sliding groove (11).
6. The mechanical automatic locking device between a spreader and a skid according to claim 1, wherein the first connecting part (222), the second connecting part (223) and the hook part (221) are integrally formed.
7. The mechanical automatic locking device between a spreader and a skid according to claim 1, further comprising a shock absorbing device (5), wherein the shock absorbing device (5) comprises:
one end of the fixed rod (51) is fixedly connected with one side of the hanger connecting piece (21);
the inner ring of the bearing (52) is fixedly sleeved on the outer wall of the other end of the fixing rod (51);
the first connecting part (222) is provided with a through hole (53), and the inner wall of the through hole (53) is fixedly sleeved with the outer ring of the bearing (52);
the spring (54) is arranged between the first connecting part (222) and one side of the hanger connecting piece (21), the spring (54) is sleeved on the outer wall of the fixing rod (51), one end of the spring (54) is fixedly connected with the one side of the hanger connecting piece (21), and the other end of the spring (54) is fixedly connected with the first connecting part (222).
8. The device of claim 1, further comprising:
a vibration sensor provided on the second connection portion (223);
the distance sensor is arranged at the top end of the hanger connecting piece (21);
the induction block is arranged on the hook part (221), and the distance sensor is used for inducing the distance of the induction block;
the controller and the power supply are respectively electrically connected with the vibration sensor, the distance sensor and the power supply, and the controller is further connected with an alarm.
9. The mechanical automatic locking device between a lifting appliance and a skid according to claim 8,
the distance sensor is connected with the controller through a first signal processing circuit, the vibration sensor is connected with a vibration sensor detection device, and the vibration sensor detection device is connected with the controller through a second signal processing circuit;
the first signal processing circuit includes: a second operational amplifier (U2), wherein the inverting input end is connected with the distance sensor, and the non-inverting input end is grounded;
an eighteenth resistor (R18), one end of which is connected to the inverting input terminal of the second operational amplifier (U2), and the other end of which is connected to the output terminal of the second operational amplifier (U2);
a fifth capacitor (C5), one end of which is connected with the inverting input end of the second operational amplifier (U2), and the other end of which is connected with the output end of the second operational amplifier (U2);
the non-inverting input end of the first operational amplifier (U5) is connected with the output end of the second operational amplifier (U2), and the inverting input end of the first operational amplifier (U5) is grounded through a sixteenth resistor (R16);
a fifteenth resistor (R15), one end of which is connected with the inverting input end of the first operational amplifier (U5), and the other end of which is connected with the output end of the first operational amplifier (U5);
the non-inverting input end of the third operational amplifier (U3) is connected with the output end of the first operational amplifier (U5), the inverting input end of the third operational amplifier is grounded through a seventeenth resistor (R17), and the output end of the third operational amplifier is connected with the controller;
a first diode (D1), the anode of which is connected with the output end of the third operational amplifier (U3), and the cathode of which is grounded through a fourth capacitor (C4);
a variable resistor (R19), one end of which is connected with the inverting input end of the third operational amplifier (U3) and the negative electrode of the first diode (D1), and the other end of which is grounded;
the second signal processing circuit includes:
a sixth resistor (R6), the first end of which is connected with the output end of the vibration sensor detection device, and the second end of which is grounded through a first capacitor (C1);
a first comparator (U4), wherein the positive input end of the first comparator is connected with the second end of the sixth resistor (R6), and the output end of the first comparator is connected with the controller;
a seventh resistor (R7), one end of which is connected with the negative input end of the first comparator (U4), and the other end of which is grounded;
a ninth resistor (R9), a first end of which is connected with the output end of the first comparator (U4), a second end of which is connected with the first end of an eighth resistor (R8), and the second end of the eighth resistor (R8) is connected with the negative input end of the first comparator (U4);
the cathode of the second diode (D2) is connected with the second end of the ninth resistor (R9), and the anode of the second diode is grounded;
one end of the third capacitor (C3) is connected with the negative input end of the first comparator (U4), and the other end of the third capacitor is grounded;
a second capacitor (C2), one end of which is connected with the power supply end of the first comparator (U4), and the other end of which is connected with the output end of the first comparator (U4);
an eleventh resistor (R11), the first end of which is connected with the output end of the vibration sensor detection device, and the second end of which is grounded through a seventh capacitor (C7);
the negative input end of the second comparator (U6) is connected with the second end of the eleventh resistor (R11), and the output end of the second comparator is connected with the controller;
a tenth resistor (R10) having one end connected to the power supply terminal of the second comparator (U6) and the other end connected to the output terminal of the second comparator (U6);
a twelfth resistor (R12), the first end of which is connected with the power supply, the second end of which is connected with one end of a thirteenth resistor (R13), and the other end of the thirteenth resistor (R13) is connected with the positive input end of a second comparator (U6);
a fourteenth resistor (R14), one end of which is connected to the positive input end of the second comparator (U6), and the other end of which is grounded;
and the anode of the sixth diode (D6) is grounded, and the cathode of the sixth diode is connected with the second end of the twelfth resistor (R12).
10. The mechanical automatic locking device between a lifting appliance and a skid according to claim 8,
the vibration sensor is also connected with an indicating circuit, the indicating circuit includes:
a fifth resistor (R5), the first end of which is connected with the output end of the vibration sensor;
a fourth diode (D4) and a third diode (D3), wherein the anode of the fourth diode (D4) is connected with the second end of the fifth resistor (R5), the cathode of the third diode (D3) is connected with the second end of the fifth resistor (R5), the cathode of the fourth diode (D4) is connected to the ground through the fourth resistor (R4), and the anode of the third diode (D3) is connected with a power supply through the second resistor (R2);
a third comparator (U1), wherein the positive input end of the third comparator is connected with the negative electrode of the fourth diode (D4), and the negative input end of the third comparator is connected with the positive electrode of the third diode (D3);
a first resistor (R1) having one end connected to a power supply;
a fifth diode (D5), the anode of which is connected with the other end of the first resistor (R1), and the cathode of which is connected with the output end of the first comparator (U4);
and one end of the sixth capacitor (C6) is connected with the anode of the fifth diode (D5), and the other end of the sixth capacitor is connected with the output end of the first comparator (U4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152802.XA CN111332934B (en) | 2020-03-06 | 2020-03-06 | Mechanical automatic locking device between lifting appliance and skid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152802.XA CN111332934B (en) | 2020-03-06 | 2020-03-06 | Mechanical automatic locking device between lifting appliance and skid |
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| CN111332934A true CN111332934A (en) | 2020-06-26 |
| CN111332934B CN111332934B (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| JPH09169412A (en) * | 1995-12-20 | 1997-06-30 | Hitachi Zosen Corp | Long material storage shelf |
| CN201808934U (en) * | 2010-08-13 | 2011-04-27 | 湖北三丰智能输送装备股份有限公司 | Mechanical automatic locking device |
| CN105217260A (en) * | 2015-11-11 | 2016-01-06 | 安徽江淮汽车股份有限公司 | A kind of car body coating manufacturing line and delivery system thereof |
| CN205856639U (en) * | 2016-07-14 | 2017-01-04 | 黄石市中城自动化科技有限公司 | A kind of pre-processing electrophoresis line lock pry device |
| CN107082257A (en) * | 2017-04-25 | 2017-08-22 | 安徽江淮汽车集团股份有限公司 | Vehicle body upper part automatic locking system |
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2020
- 2020-03-06 CN CN202010152802.XA patent/CN111332934B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09169412A (en) * | 1995-12-20 | 1997-06-30 | Hitachi Zosen Corp | Long material storage shelf |
| CN201808934U (en) * | 2010-08-13 | 2011-04-27 | 湖北三丰智能输送装备股份有限公司 | Mechanical automatic locking device |
| CN105217260A (en) * | 2015-11-11 | 2016-01-06 | 安徽江淮汽车股份有限公司 | A kind of car body coating manufacturing line and delivery system thereof |
| CN205856639U (en) * | 2016-07-14 | 2017-01-04 | 黄石市中城自动化科技有限公司 | A kind of pre-processing electrophoresis line lock pry device |
| CN107082257A (en) * | 2017-04-25 | 2017-08-22 | 安徽江淮汽车集团股份有限公司 | Vehicle body upper part automatic locking system |
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| CN111332934B (en) | 2021-07-27 |
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