CN210655878U

CN210655878U - Variable frequency amplitude changing device of port crane

Info

Publication number: CN210655878U
Application number: CN201921287765.2U
Authority: CN
Inventors: 李艳宁; 张学鹏
Original assignee: Tianjin Zhengsheng Electromechanical Technology Development Co Ltd
Current assignee: Tianjin Zhengsheng Electromechanical Technology Development Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-06-02
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a frequency conversion becomes width of cloth device of harbour hoist, including shell and radiator fan, control panel is installed through the hinge in the right side of shell, the inside upper and lower both sides of shell all are provided with the roof, and are two sets of the left side that the roof is close to one side each other all welds the mount pad, and is two sets of the intermediate position department of roof is provided with variable frequency circuit board, one side that variable frequency circuit board was kept away from to the roof all articulates through the articulated shaft has two sets of movable rods, the left middle part of variable frequency circuit board is provided with the conducting strip, radiator fan is all installed to the upper and lower both sides of shell left side inner wall, radiator fan's left end all installs the dust screen, four groups of conducting. The utility model discloses cushion the vibrational force, prevent that variable frequency circuit board from receiving long-term vibration back electronic component impaired to dispel the heat to variable frequency circuit board, improved device's life.

Description

Variable frequency amplitude changing device of port crane

Technical Field

The utility model relates to a port crane technical field specifically is a frequency conversion of port crane becomes width of cloth device.

Background

The crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, the crane is widely used in the field, the belt crane needing to carry objects such as ports is frequently used, the types of the crane are many, the port most frequently uses a rubber-tyred crane, the power of the rubber-tyred crane generally uses hydraulic pressure as a power source and needs a variable-frequency amplitude device for driving, when the existing variable-frequency amplitude device for the crane is used, an engine on the crane can vibrate during working, the variable-frequency device can be damaged due to long-term vibration, the service life of the variable-frequency device is greatly shortened, and therefore the variable-frequency amplitude device for the port crane is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a harbour crane's frequency conversion becomes width of cloth device to solve the current for the crane frequency conversion that proposes in the above-mentioned background art and become width of cloth equipment when using, engine work can produce the vibration on the hoist, and frequency conversion equipment receives the vibration for a long time and can produce the damage, great reduction frequency conversion equipment's life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a variable frequency amplitude changing device of a port crane comprises a shell and a radiating fan, wherein a control panel is installed on the right side of the shell through hinges, top plates are arranged on the upper side and the lower side of the inner portion of the shell, mounting seats are welded on the left sides, close to one side, of the two groups of top plates, a variable frequency circuit board is arranged in the middle of the two groups of top plates, bolts are inserted into the four surfaces of the variable frequency circuit board and connected with the mounting seats through threaded structures, telescopic rods are welded at the front end and the rear end, close to one side of the inner wall of the shell, of each top plate, the other end of each telescopic rod is welded and fixed with the shell, two groups of movable rods are hinged on one side, far away from the variable frequency circuit board, of each top plate through a hinged shaft, a heat conducting fin is arranged in the middle, the left end welding of plug bush has the heat dissipation copper billet, the left end of heat dissipation copper billet passes the shell inner wall and extends to the shell outside, radiator fan is all installed to the upper and lower both sides of shell left side inner wall, and radiator fan's left end all passes the shell inner wall and is linked together with the shell outside, radiator fan's left end all installs the dust screen, four groups of heat conduction poles have all been welded to the upper and lower both sides of heat dissipation copper billet, and the other end of heat conduction pole all with shell inner wall welded fastening.

Preferably, the middle part of the bolt is sleeved with a spring, one end of the spring is fixedly welded with the top plate, and the other end of the spring is attached to the frequency conversion circuit board.

Preferably, the one end that the roof was kept away from to the movable rod all articulates through the articulated shaft has the slider, the upper and lower both sides of shell inner wall all offer the spout of mutually supporting with the slider, one side that frequency conversion circuit board was kept away from to the roof all is provided with the spring, and the both ends of spring all with the middle part welded fastening of movable rod.

Preferably, the outside of telescopic link all is equipped with the spring, and the one end of spring all with shell inner wall welded fastening to the other end of spring all with roof welded fastening.

Preferably, springs are welded at the upper end and the lower end of the left side of the heat conducting fin, and the other ends of the springs are welded and fixed with the heat dissipation copper blocks.

Preferably, the size of the outer surface of the copper insert block is the same as that of the inner wall of the insert sleeve, and the insert sleeve is filled with silicone grease.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a be provided with the movable rod, when this frequency conversion device received the vibration, the shell can produce the reciprocating of small range because the vibrational force, make the interval between roof and the shell inner wall change, make the contained angle between two sets of movable rods that lie in roof one side change, make the spring produce deformation, and the spring in the telescopic link outside also can produce deformation, the interval that has a buffering removal has been given to the frequency conversion circuit board in the shell, when the position of roof was stabilized through the resilience force of spring, cushion the vibrational force, prevent that the frequency conversion circuit board from receiving electronic component after long-term vibration impaired, the effectual life who improves this frequency conversion device;

the utility model discloses a be provided with heat dissipation copper billet and heat conduction pole, when this frequency conversion device carries out the during operation, frequency conversion circuit board work produces the heat, the heat on frequency conversion circuit board surface passes through conducting strip heat conduction to the copper inserted block, heat conduction to heat dissipation copper billet through the silicone grease, the air that the outside circulation of shell was passed through to the outside one side of heat dissipation copper billet is dispelled the heat, and heat on the heat dissipation copper billet can lead heat to the heat conduction pole, produce the air current from the right side to the left side after radiator fan starts, dispel the heat to the heat conduction pole, discharge the inside heat of shell outside, thereby dispel the heat to frequency conversion circuit board, this heat radiation structure good thermal diffusivity, avoid frequency conversion circuit board at the during operation overheated, electronic component to frequency conversion circuit board produces the damage, the device's life has further been.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

fig. 3 is a schematic side view of the structure of the present invention.

In the figure: 1. a housing; 2. a control panel; 3. a top plate; 4. a mounting seat; 5. a variable frequency circuit board; 6. a bolt; 7. a telescopic rod; 8. a movable rod; 9. a heat conductive sheet; 10. a copper insert; 11. inserting a sleeve; 12. a heat dissipation copper block; 13. a heat radiation fan; 14. a dust screen; 15. a heat conducting rod.

The specific implementation mode is as follows:

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.

Referring to fig. 1-3, the present invention provides an embodiment: a frequency conversion amplitude changing device of a port crane comprises a shell 1 and a heat radiation fan 13, a control panel 2 is arranged on the right side of the shell 1 through hinges, top plates 3 are arranged on the upper side and the lower side inside the shell 1, mounting seats 4 are welded on the left sides of two groups of top plates 3 close to one side, a frequency conversion circuit board 5 is arranged in the middle of the two groups of top plates 3, bolts 6 are inserted into the four surfaces of the frequency conversion circuit board 5, the bolts 6 are connected with the mounting seats 4 through thread structures, springs are sleeved in the middle of the bolts 6, one ends of the springs are welded and fixed with the top plates 3, the other ends of the springs are attached to the frequency conversion circuit board 5, when the shell 1 is vibrated, the frequency conversion circuit board 5 generates small-amplitude displacement when being subjected to vibration force, the springs are compressed, a movable buffer interval is provided for the frequency conversion circuit board 5, the frequency conversion circuit board 5 is protected, the front end and the rear end of one side of the top plate 3 close to the inner wall of the shell 1 are welded with telescopic rods 7, the other ends of the telescopic rods 7 are welded and fixed with the shell 1, one side of the top plate 3 far away from the frequency conversion circuit board 5 is hinged with two groups of movable rods 8 through hinged shafts, one ends of the movable rods 8 far away from the top plate 3 are hinged with sliders through hinged shafts, the upper side and the lower side of the inner wall of the shell 1 are provided with chutes matched with the sliders, one side of the top plate 3 far away from the frequency conversion circuit board 5 is provided with springs, the two ends of the springs are welded and fixed with the middle parts of the movable rods 8, the outer sides of the telescopic rods 7 are sleeved with springs, one ends of the springs are welded and fixed with the inner wall of the shell 1, and the other ends of the springs are welded and fixed with, the contained angle that makes between two sets of movable rods 8 that are located roof 3 one side changes, makes the spring produce deformation to the spring in the telescopic link 7 outside also can produce deformation, has given frequency conversion circuit board 5 and has the interval that a buffering removed in shell 1 inside, cushions the vibrational force.

The middle part of the left side of the variable frequency circuit board 5 is provided with a heat conducting fin 9, the left side of the heat conducting fin 9 is welded with a copper insert block 10, the upper end and the lower end of the left side of the heat conducting fin 9 are both welded with springs, the other end of each spring is welded and fixed with a heat radiating copper block 12, the size of the outer surface of the copper insert block 10 is the same as that of the inner wall of an insert sleeve 11, the interior of the insert sleeve 11 is filled with silicone grease, and the silicone grease is uniformly attached to the heat radiating copper blocks 12 and the copper insert blocks 10 by screwing a bolt 6 into an installation seat 4 to push the variable frequency circuit board 5 to move leftwards so as to drive the heat conducting fin 9 and the copper insert blocks 10 to move leftwards and compress the silicone grease in the insert sleeve 11, so that the silicone grease can better conduct the heat of the copper insert blocks 10 to the heat radiating copper blocks 12, the springs limit the heat conducting fin 9 and prevent the heat conducting fin 9 and the, the outer side cover of copper inserted block 10 is equipped with plug bush 11, the left end welding of plug bush 11 has heat dissipation copper billet 12, the left end of heat dissipation copper billet 12 passes shell 1 inner wall and extends to the shell 1 outside, radiator fan 13 is all installed to the upper and lower both sides of shell 1 left side inner wall, radiator fan 13's model can be 4020-12V, radiator fan 13's left end all passes shell 1 inner wall and is linked together with the shell 1 outside, radiator fan 13's left end all installs dust screen 14, four groups of heat conduction poles 15 have all been welded to the upper and lower both sides of heat dissipation copper billet 12, and the other end of heat conduction pole 15 all with shell 1 inner wall welded fastening.

The working principle is as follows: when the frequency conversion device is vibrated, the shell 1 can move up and down in a small range due to the vibration force, so that the distance between the top plate 3 and the inner wall of the shell 1 is changed, an included angle between two groups of movable rods 8 positioned on one side of the top plate 3 is changed, the spring is deformed, the spring on the outer side of the telescopic rod 7 is also deformed, a buffer moving interval is formed in the shell 1 for the frequency conversion circuit board 5, the vibration force is buffered while the position of the top plate 3 is stabilized through the resilience force of the spring, the electronic element of the frequency conversion circuit board 5 is prevented from being damaged after being vibrated for a long time, and the service life of the frequency conversion device is effectively prolonged;

when this frequency conversion device carries out the during operation, frequency conversion circuit board 5 work produces the heat, the heat on frequency conversion circuit board 5 surface passes through conducting strip 9 heat conduction to copper inserted block 10, heat conduction to heat dissipation copper billet 12 through the silicone grease, heat dissipation copper billet 12 extends to the outside one side of shell 1 and dispels the heat through the air of the outside circulation of shell 1, and heat on the heat dissipation copper billet 12 can lead heat to conducting rod 15, produce the air current from the right side to the left side after radiator fan 13 starts, dispel the heat to conducting rod 15, discharge the inside heat of shell 1 outside shell 1, thereby dispel the heat to frequency conversion circuit board 5, this heat radiation structure good heat dissipation, avoid frequency conversion circuit board 5 at the during operation overheated, produce the damage to the electronic component on frequency conversion circuit board 5, the device's life has further been improved, the above does the utility model discloses a whole theory of operation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a frequency conversion of harbour hoist becomes width of cloth device, includes shell (1) and radiator fan (13), its characterized in that: the control panel (2) is installed on the right side of the shell (1) through hinges, top plates (3) are arranged on the upper side and the lower side of the interior of the shell (1), two groups of top plates (3) are welded on the left side close to one side, a variable frequency circuit board (5) is arranged in the middle of the two groups of top plates (3), bolts (6) are inserted into the four surfaces of the variable frequency circuit board (5), the bolts (6) are connected with the mounting seats (4) through thread structures, telescopic rods (7) are welded at the front end and the rear end of the top plate (3) close to one side of the inner wall of the shell (1), the other ends of the telescopic rods (7) are welded and fixed with the shell (1), one side of the top plate (3) far away from the variable frequency circuit board (5) is hinged with two groups of movable rods (8), heat conducting fins (9) are arranged in the middle, and the left side welding of conducting strip (9) has copper inserted block (10), the outside cover of copper inserted block (10) is equipped with plug bush (11), the left end welding of plug bush (11) has heat dissipation copper billet (12), the left end of heat dissipation copper billet (12) passes shell (1) inner wall and extends to shell (1) outside, radiator fan (13) are all installed to the upper and lower both sides of shell (1) left side inner wall, and the left end of radiator fan (13) all passes shell (1) inner wall and shell (1) outside and is linked together, dust screen (14) are all installed to the left end of radiator fan (13), four groups of conducting rod (15) have all been welded to the upper and lower both sides of heat dissipation copper billet (12), and the other end of conducting rod (15) all with shell (1) inner wall welded fastening.

2. The variable frequency luffing device of the port crane according to claim 1, wherein: the middle part of bolt (6) all is equipped with the spring, and the one end and roof (3) welded fastening of spring to the other end and frequency conversion circuit board (5) of spring laminate mutually.

3. The variable frequency luffing device of the port crane according to claim 1, wherein: the one end that roof (3) were kept away from in movable rod (8) all articulates through the articulated shaft has the slider, the spout of mutually supporting with the slider has all been seted up to the upper and lower both sides of shell (1) inner wall, one side that variable frequency circuit board (5) were kept away from in roof (3) all is provided with the spring, and the both ends of spring all with the middle part welded fastening of movable rod (8).

4. The variable frequency luffing device of the port crane according to claim 1, wherein: the outside of telescopic link (7) all is equipped with the spring, and the one end of spring all with shell (1) inner wall welded fastening to the other end of spring all with roof (3) welded fastening.

5. The variable frequency luffing device of the port crane according to claim 1, wherein: springs are welded at the upper end and the lower end of the left side of the heat conducting fin (9), and the other ends of the springs are welded and fixed with the heat dissipation copper block (12).

6. The variable frequency luffing device of the port crane according to claim 1, wherein: the size of the outer surface of the copper insert block (10) is the same as that of the inner wall of the insert sleeve (11), and the insert sleeve (11) is filled with silicone grease.