CN201656208U - Electric revolving body and engineering machine provided with same - Google Patents
Electric revolving body and engineering machine provided with same Download PDFInfo
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- CN201656208U CN201656208U CN2009203534679U CN200920353467U CN201656208U CN 201656208 U CN201656208 U CN 201656208U CN 2009203534679 U CN2009203534679 U CN 2009203534679U CN 200920353467 U CN200920353467 U CN 200920353467U CN 201656208 U CN201656208 U CN 201656208U
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- revolving body
- electric revolving
- brush
- conducting ring
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Abstract
The utility model discloses an electric revolving body and an engineering machine provided with same, wherein the electric revolving body comprises a base (2), a conductive ring (3) fixedly connected with the base (2), an electric brush (4) which rotates around the conductive ring (3) and is electrically connected with the conductive ring (3), a shifting fork (5) which is connected with the electric brush (4) and can drive the electric brush (4) to rotate, and an angle measuring part (6) used for detecting the revolving angle of the electric revolving body, wherein the angle measuring part (6) is fixedly connected with the electric brush (4); the engineering machine comprises an upper lathing part and a lower lathing part; and the electric revolving body can transmit communication signals of the upper lathing part and the lower lathing part efficiently, and can emit signals of revolving angle of 360 degrees simultaneously, thus improving the signal accuracy of the electric revolving body, and also improving the safety reliability when the engineering machine works.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of electric revolving body.In addition, the utility model also relates to a kind of engineering machinery that comprises above-mentioned electric revolving body.
Background technology
Crane comprises getting off and travels and get on the bus lift heavy two parts that getting on and off links to each other by the pivoting support seat ring, can rotate relative to 360 ° between the two.Need many signals of getting off during crane work, as the driving lamp signal, supporting leg position signalling, throttle control signal etc.Because crane relatively rotates between getting on and off, and can not connect to come transmission signals by traditional wire harness, can only realize between the two signal and communication by electric revolving body.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical electrical revolving body in the prior art.
Electric revolving body of the prior art mainly comprises: brush 11, conducting ring 12, shift fork 13, top cover 14 and base 15 etc., and wherein, base 15, conducting ring 12 maintain static, and brush 11 rotates around conducting ring 12, electric signal transmission between getting on and off with realization; And by changing the length of conducting ring 12, allow conducting ring 12 conduct electricity in 120 ° of scopes forwardly, can detect the angle at 240 ° at 120 ° of vehicle fronts or rear roughly.Along with the crane continuous advancement in technology, last vehicle control need read in angle of revolution signal accurately, required important parameter when the angle of revolution is crane job, the judgement in calculating, dead ahead, arm position and the dead astern of lifting load etc. is all calculated as important evidence with the angle of revolution parameter and is judged.Therefore, electric revolving body of the prior art is difficult to satisfy the development need of crane.
As can be seen, brush 11 and shift fork 13 all are monolateral layouts on the structure, and this kind structure is at crane and to get off when relatively rotating be unsettled.When electric revolving body rotated, the revolution concentricity was bad with getting on the bus; Or Vehicular vibration is when bigger, and shift fork 13 can be subjected to other side force, contacts instability with conducting ring 12 when causing brush 11 to rotate, and signal and communication is unreliable.
In addition, sealing assembling between the top cover 14 of electricity revolving body and the base 15, steam enters electric revolving body inside from following cable-through hole, can not in time discharge, the effect of expanding with heat and contract with cold can make steam condense, be adsorbed on the brush 11 and conducting ring 12 in the electric revolving body, cause brush 11 and conducting ring 12 corrosions fracture, electric revolving body damages.
Therefore, how improving the precision of the measured angle of revolution of electric revolving body, improve the reliability of electric revolving body signal transmission, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of electric revolving body, and this electricity turns round the physical efficiency efficient transfer signal of telecommunication and angle of revolution signal, significantly improves the signal accuracy of electric revolving body.Another purpose of the present utility model provides a kind of engineering machinery that comprises above-mentioned electric revolving body, and its security reliability is improved.
For solving the problems of the technologies described above, the utility model provides a kind of electric revolving body, comprise base, the conducting ring of fixedlying connected with described base, around described conducting ring rotation and with the brush of its conducting, and the shift fork that is connected and can drives described brush rotation with described brush, also comprise the angular surveying parts that are used to detect the angle of revolution, this angle detection part is fixedlyed connected with described brush.
Preferably, the top of described conducting ring is provided with the support platform of fixedlying connected with described brush, and described angle detection part is fixedlyed connected with described support platform.
Preferably, described angle detection part is specially angular encoder, and this angular encoder is coaxial with described conducting ring.
Preferably, also comprise flexible axle mechanism; Fixedly connected with described conducting ring in the bottom of described flexible axle mechanism, the middle part has elasticity, and top rotatably is connected with described angle detection part.
Preferably, the top of described flexible axle mechanism is fixedly connected with bearing pin, and the top of described bearing pin rotatably is plugged in the bottom of described angle detection part.
Preferably, the number of described brush is two groups, and two groups of described brushes are distributed in the both sides of described conducting ring symmetrically.
Preferably, the number of described shift fork is two, and two described shift forks are fixedlyed connected with the shell of described electric revolving body symmetrically, and described shell is fixedlyed connected with described brush.
Preferably, the upper end of described shell has air vent, and the venting cap corresponding with described air vent position, and predetermined gap is arranged between the outer wall of described venting cap and described air vent.
Preferably, the position except that contact portion all scribbles insulating varnish in described conducting ring and the described brush.
The utility model also provides a kind of engineering machinery, comprises lower frame part, upper frame part and above-mentioned each described electric revolving body; The base of this electricity revolving body is fixedlyed connected with described lower frame part, and the brush of this electricity revolving body is fixedlyed connected with described upper frame part.
Electric revolving body provided by the utility model comprises base, conducting ring, brush and shift fork, and wherein, conducting ring is fixedlyed connected with base, brush and conducting ring conducting and rotate around conducting ring, and shift fork is connected with brush, and can drive the brush rotation.Different with present technology is, also is provided with the angle detection part in the electric revolving body provided by the utility model, and this angle detection part is fixedlyed connected with described brush, rotate around conducting ring, and by its rotation of fork controls or stop.In the engineering machinery that makes the electricity consumption revolving body, the signal and communication between two parts that electric revolving body is used to realize rotating mutually.In electric revolving body, add the angle detection part, because brush can be around 360 ° of rotations of conducting ring, so the angle detection part also can be around 360 ° of rotations of conducting ring.Like this, the angle of revolution that the angle detection part can 360 ° of work machine between getting on the bus and getting off makes the engineering machinery with this electricity revolving body can realize that 360 ° of angles of revolution detect.In the control procedure of engineering machinery, with a kind of as technical parameter of the detected angle of revolution of angle detection part signal, to the LOAD FOR of engineering machinery, safety is judged that important value is all arranged.Therefore, measure operating mode that angle of revolution accurately can make engineering machinery and judge more accurately, coefficient of safety is higher.
A kind of preferred embodiment in, described angle detection part is connected by flexible axle mechanism with described conducting ring; Fixedly connected with described conducting ring in the bottom of this flexible axle mechanism, the middle part has elasticity, and top rotatably is connected with described angle detection part.Because during vehicle operation; vibrate bigger; the angle detection part is connected by flexible axle mechanism with conducting ring, can effectively absorb the side force that vibration causes, and avoids causing the angle detection part to damage; even cause detected angle of revolution distorted signals; therefore, flexible axle mechanism had both protected the angular surveying parts, and reduced to vibrate the influence to angle input precision; thereby can guarantee angle detection part steady operation, improve the accuracy of detected angle of revolution signal.
In another preferred embodiment, the number of described brush is two groups, and two groups of described brushes are distributed in the both sides of described conducting ring symmetrically.Signal transmission between the electricity revolving body is used to get on the bus and get off, during the rotation of electricity revolving body, occur easily and the bad situation of revolution concentricity of getting on the bus, perhaps sometimes Vehicular vibration is bigger, contact instability with conducting ring when these operating modes all can cause brush to rotate, signal and communication is unreliable.Therefore, two groups of brushes are set in electric revolving body, and make two groups of brushes be distributed in the both sides of conducting ring symmetrically, when one group of brush contacts unstablely with conducting ring, when stable communication signal can not be provided, another group brush still may contact with conducting ring is stable.Like this, can guarantee that the communication signal between brush and the conducting ring is reliable and stable, reduce of the influence of different operating modes, improve the reliability of electric revolving body the communication signal of electric revolving body.
In another preferred embodiment, the number of described shift fork is two, and two described shift forks are fixedlyed connected with the shell of described electric revolving body symmetrically, and described shell is fixedlyed connected with described brush.Shift fork is used for the control brush rotation or stops, fixedly connected two shift forks on shell, and two shift fork symmetries can prevent effectively that the situation of strength, unbalance stress from use appearring suppressing in shift fork, make shift fork more efficient, the better reliability of electric revolving body to the control of brush.
Description of drawings
Fig. 1 is the structural representation of a kind of typical electrical revolving body in the prior art;
Fig. 2 provides the structural representation of a kind of embodiment of electric revolving body for the utility model;
Fig. 3 is the vertical view of electric revolving body shown in Figure 2.
Embodiment
Core of the present utility model provides a kind of electric revolving body, and this electricity turns round the physical efficiency efficient transfer signal of telecommunication and angle of revolution signal, thereby improves the signal accuracy of electric revolving body.Another core of the present utility model provides a kind of engineering machinery that comprises above-mentioned electric revolving body.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.In this part, this specification is that example describes electric revolving body provided by the utility model with the electric revolving body of crane, should be noted that electric revolving body provided by the utility model not only can be applied to crane, can also be applied in other engineering machinery.
Crane comprises getting off and travels and get on the bus lift heavy two parts, can rotate relative to 360 ° between lower frame part and the upper frame part.Need many signals of getting off during crane work, as driving lamp signal, supporting leg position signalling, throttle control signal, angle of revolution signal etc.Owing to relatively rotate between lower frame part and the upper frame part, can not connect to come transmission signals by traditional wire harness, can only realize between the two signal and communication by electric revolving body, and electric revolving body also wants to detect the angle of revolution signal of crane.
Angle of revolution as herein described means the angle of upper frame part with respect to the lower frame part rotation.During the vehicle operation, the judgement in calculating, dead ahead, arm position and the dead astern of lifting load etc. is all calculated as important evidence with the angle of revolution parameter and is judged.Electric revolving body mentioned above is installed in the crane rotation in the heart, is used for that electric signal transmission and angle of revolution detect between upper frame part and the lower frame part.
Please refer to Fig. 2 and Fig. 3, Fig. 2 provides the structural representation of a kind of embodiment of electric revolving body for the utility model; Fig. 3 is the vertical view of electric revolving body shown in Figure 2.
Electric revolving body provided by the utility model, comprise base 2, conducting ring 3, brush 4, shift fork 5 and angle detection part 6, during the work of electricity revolving body, conducting ring 3 and base 2 are fixedly connected and keep relative static, brush 4, shift fork 5 and angle detection part 6 are all around base 2 and conducting ring 3 rotations, and whether each rotating parts rotates by shift fork 5 controls.
The electricity revolving body is installed on the centre of gyration of crane, is used for electric signal transmission and angle of revolution detection between upper frame part and the lower frame part.In electric revolving body, add angle detection part 6, because brush 4 can be realized 360 ° of rotations around conducting ring 3, so angle detection part 6 also can be realized 360 ° of rotations around conducting ring 3.Like this, upper frame part that angle detection part 6 can 360 ° of detection cranes and the angle of revolution between the lower frame part make the crane with this electricity revolving body can realize that 360 ° of angles of revolution detect.In the control procedure of crane, with a kind of as technical parameter of angle detection part 6 detected angle of revolution signals, LOAD FOR, safety judgement to crane all have important value, thereby make the operating mode judgement of crane more accurate, and coefficient of safety is higher.
In a kind of concrete execution mode, the top of conducting ring 3 is provided with the support platform 41 of fixedlying connected with brush 4, and angle detection part 6 is fixedlyed connected with support platform 41.Make support platform 41 support angle detection parts 6, brush 4 is being with support platform 41 and angle detection part 6 together around conducting ring 3 rotations, realizes 360 ° of angles of revolution detections.
The nouns of locality such as upper and lower, the top that this paper is related are to be applied to electric revolving body that the orientation when in running order is that benchmark defines in the crane, and the noun of locality that is to be understood that herein to be adopted should not limit the protection range of this patent.In addition, as herein described fixedly connected, comprise directly fixedly connectedly, comprise that also indirect securement connects.
Particularly, above-mentioned angle detection part 6 can be an angular encoder, and this angular encoder is coaxial with conducting ring 3, promptly angular encoder be installed on the centre of gyration directly over.Angular encoder can detect and the output angle signal, and, bad working environments during according to the requirement of signal accuracy and type and crane work can select to use the angular encoder than high-protection level, makes this angular encoder still can operate as normal in more abominable operating mode.The angular encoder volume is little, and compact conformation is easy for installation, and the use angle encoder is measured the volume that the angle of revolution can reduce electric revolving body, reduces the installation difficulty of electric revolving body simultaneously.
In addition, because electric revolving body is installed on the centre of gyration of crane, angular encoder and the conducting ring 3 coaxial concentricitys that can improve electric revolving body and crane, reduce the angle of revolution detection and be subjected to the bad deviation that causes of concentricity, improve the accuracy that the angle of revolution is detected, improve the reliability of electric revolving body simultaneously.Obviously, the angle detection part can be other equipment that can detect and export the angle of revolution signal, its installation site also should not be limited to the centre of gyration directly over.
In order further to improve the accuracy that the angle of revolution is detected, the angle detection part 6 of electric revolving body provided by the utility model can be connected by flexible axle mechanism 7 with conducting ring 3; Fixedly connected with conducting ring 3 in the bottom of this flexible axle mechanism 7, the middle part has elasticity, and top rotatably is connected with angle detection part 6.Because during vehicle operation, vibrate bigger, and concentricity has deviation, angle detection part 6 is connected by flexible axle mechanism 7 with conducting ring 3, can effectively absorb the side force that concentricity is not enough and vibration causes, avoid causing angle detection part 6 to damage, even cause detected angle of revolution distorted signals.Therefore, flexible axle mechanism 7 had both protected angular surveying parts 6, and reduced to vibrate the influence to angle input precision, thereby can guarantee angle detection part 6 steady operations, had improved the accuracy of detected angle of revolution signal.
In a kind of concrete execution mode, the top of flexible axle mechanism 7 is fixedly connected with bearing pin 61, and the top of bearing pin 61 rotatably is plugged in the bottom of angle detection part 6.Like this, angle detection part 6 and support platform 41 are all around bearing pin 61 rotations, bearing pin 61 is fixedlyed connected with the top of flexible axle mechanism 7, fixedlys connected with conducting ring in the bottom of flexible axle mechanism 7, makes brush 4, support platform 41 and angle detection part 6 around conducting ring 3,7 rotations of flexible axle mechanism.
In the concrete execution mode of another kind, the number of brush 4 can be two groups, and two groups of brushes 4 are distributed in the both sides of conducting ring 3 symmetrically.During the rotation of electricity revolving body, occur easily and the bad situation of upper frame part revolution concentricity; Perhaps sometimes Vehicular vibration is bigger, and these operating modes contact unstable with conducting ring 3 in the time of all can causing brush 4 to rotate, and signal and communication is unreliable.Therefore, two groups of brushes 4 are set in electric revolving body, and make two groups of brushes 4 be distributed in the both sides of conducting ring 3 symmetrically, when one group of brush 4 contacts unstable with conducting ring 3, when stable communication signal can not be provided, another group brush 4 still may with conducting ring 3 stable contacts.Like this, can guarantee that the communication signal between brush 4 and the conducting ring 3 is reliable and stable, reduce of the influence of different operating modes, improve the reliability of electric revolving body the communication signal of electric revolving body.
Further, the number of shift fork 5 also can be two, and two shift forks 5 fixedly connected with the shell 8 of electric revolving body symmetrically, and shell 8 is fixedlyed connected with brush 4, promptly rotatably is connected with base 2.Shift fork 5 is used for control brush 4 rotations or stops, fixedly connected two shift forks 5 on shell 8, and two shift fork 5 symmetries can prevent effectively that the situation of strength, unbalance stress from use appearring suppressing in shift fork 5, make the control of 5 pairs of brushes 4 of shift fork more efficient, the better reliability of electric revolving body.
Can do to improve further to above-mentioned electric revolving body.
As shown in Figure 2, air vent 81 can be set in the upper end of shell 8, and the venting cap 82 corresponding with the air vent position, and between the outer wall of venting cap 82 and air vent 81 predetermined gap is arranged, make the gas that enters shell inner cavity flow out electric revolving body along air vent 81 and predetermined gap.The electricity revolving body in use, steam can enter electric revolving body inner chamber along cable-through hole, if the shell of electric revolving body 8 sealing is very tight, the steam volatilization is not gone out, can condense into water droplet after the steam cooling, make the electric-conductor corrosion of electric revolving body inside, cause electric revolving body to damage.Therefore, the upper end of electric revolving body provided by the utility model is provided with air vent 81 and the venting cap 82 corresponding with air vent 81, changes stifled for defeated, allow the inner chamber of electric revolving body ventilate, make steam form convection current, discharge electric revolving body as early as possible, guarantee that electric revolving body is inner dry.Like this, can effectively prolong the useful life of electric revolving body, improve the reliability of electric revolving body.
Further, can in conducting ring 3 and brush 4, all scribble insulating varnish in the position except that contact portion, with the waterproof rustless property of the electric revolving body of further raising, prolong the useful life of conducting ring 3 and brush 4, improve the reliability that electric revolving body signal transmits.
In sum, as shown in Figure 2, a kind of operation principle preferred embodiment of electric revolving body provided by the utility model is:
Base 2 usefulness bolts are fastened on the electric revolving body support of lower frame part, get on the bus then and stir shift fork 5, make electric revolving body follow upper frame part and rotate synchronously by shifting fork bar.Flexible axle mechanism 7, conducting ring 3, base 2 are fixedly connected motionless, and shell 8, shift fork 5, brush 4 and angle detection part 6 are partly done around aforementioned fixation and relatively rotated.Wherein, utilize bearing to be connected between shell 8 and the base 2, the inner ring of bearing is fixedlyed connected with conducting ring 3, fixedlys connected with shell 8 in the outer ring of bearing; Brush 4 is connected by connecting rod 42 with support platform 41, be provided with fixed head 43 between the upper end of connecting rod 42 and conducting ring 3, be provided with bearing between the upper end of fixed head 43 and conducting ring 3, the inner ring of this bearing is fixedlyed connected with the upper end of conducting ring 3, fixedlys connected with fixed head 43 in the outer ring.By such structure, can make the upper end of conducting ring 3 more firm.So electric revolving body just can be followed to get on the bus and is synchronized with the movement, the signal of lower frame part then is transferred to through brush 4 by conducting ring 3 and gets on the bus, angle detection part 6 is also followed upper frame part and is rotated synchronously, detects and exports the angle of revolution signal and be sent to upper frame part, keeps supplying car and partly uses.
Except above-mentioned electric revolving body, the utility model also provides a kind of engineering machinery that comprises above-mentioned electric revolving body, this project machinery comprises lower frame part and upper frame part, the base 2 of electricity revolving body is fixedlyed connected with lower frame part, brush 4 is fixedlyed connected with upper frame part, the detected signal of electricity revolving body is transferred to upper frame part, keeps supplying car and partly uses.The structure of other each several parts of engineering machinery provided by the utility model please refer to prior art, and this paper repeats no more.
Particularly, above-mentioned engineering machinery can be a crane, and perhaps other upper frame part and lower frame part need counterrotating engineering machinery.
More than electric revolving body provided by the utility model and engineering machinery with this electricity revolving body are described in detail.Used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.
Claims (10)
1. electric revolving body, comprise base (2), the conducting ring (3) of fixedlying connected with described base (2), around described conducting ring (3) rotation and with the brush (4) of its conducting, and the shift fork (5) that is connected and can drives described brush (4) rotation with described brush (4), it is characterized in that, also comprise the angular surveying parts (6) that are used to detect the angle of revolution, this angle detection part (6) is fixedlyed connected with described brush (4).
2. electric revolving body according to claim 1 is characterized in that, the top of described conducting ring (3) is provided with the support platform (41) of fixedlying connected with described brush (4), and described angle detection part (6) is fixedlyed connected with described support platform (41).
3. electric revolving body according to claim 2 is characterized in that, described angle detection part (6) is specially angular encoder, and this angular encoder is coaxial with described conducting ring (3).
4. according to each described electric revolving body of claim 1 to 3, it is characterized in that, also comprise flexible axle mechanism (7); Fixedly connected with described conducting ring (3) in the bottom of described flexible axle mechanism (7), the middle part has elasticity, and top rotatably is connected with described angle detection part (6).
5. electric revolving body according to claim 4 is characterized in that, the top of described flexible axle mechanism (7) is fixedly connected with bearing pin (61), and the top of described bearing pin (61) rotatably is plugged in the bottom of described angle detection part (6).
6. electric revolving body according to claim 4 is characterized in that, the number of described brush (4) is two groups, and two groups of described brushes (4) are distributed in the both sides of described conducting ring (3) symmetrically.
7. electric revolving body according to claim 6 is characterized in that, the number of described shift fork (5) is two, and two described shift forks (5) are fixedlyed connected with the shell (8) of described electric revolving body symmetrically, and described shell (8) is fixedlyed connected with described brush (4).
8. electric revolving body according to claim 7, it is characterized in that, the upper end of described shell (8) has air vent (81), and the venting cap (82) corresponding with described air vent (81) position, between the outer wall of described venting cap (82) and described air vent (81) predetermined gap is arranged.
9. electric revolving body according to claim 8 is characterized in that, the position in described conducting ring (3) and the described brush (4) except that contact portion all scribbles insulating varnish.
10. an engineering machinery comprises lower frame part and upper frame part, it is characterized in that, also comprises as each described electric revolving body of claim 1 to 9; The base of this electricity revolving body (2) is fixedlyed connected with described lower frame part, and the brush of this electricity revolving body (4) is fixedlyed connected with described upper frame part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203534679U CN201656208U (en) | 2009-12-31 | 2009-12-31 | Electric revolving body and engineering machine provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203534679U CN201656208U (en) | 2009-12-31 | 2009-12-31 | Electric revolving body and engineering machine provided with same |
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| Publication Number | Publication Date |
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| CN201656208U true CN201656208U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009203534679U Expired - Lifetime CN201656208U (en) | 2009-12-31 | 2009-12-31 | Electric revolving body and engineering machine provided with same |
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| Country | Link |
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| CN (1) | CN201656208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117999B (en) * | 2009-12-31 | 2013-05-08 | 徐州重型机械有限公司 | Electric revolution body and engineering machinery with same |
| CN107978944A (en) * | 2017-12-29 | 2018-05-01 | 扬州海通电子科技有限公司 | A kind of synchronous rotation device of large-scale slip ring group |
-
2009
- 2009-12-31 CN CN2009203534679U patent/CN201656208U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117999B (en) * | 2009-12-31 | 2013-05-08 | 徐州重型机械有限公司 | Electric revolution body and engineering machinery with same |
| CN107978944A (en) * | 2017-12-29 | 2018-05-01 | 扬州海通电子科技有限公司 | A kind of synchronous rotation device of large-scale slip ring group |
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Granted publication date: 20101124 Effective date of abandoning: 20091231 |
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