CN202924609U - Central rotary joint for crane - Google Patents
Central rotary joint for crane Download PDFInfo
- Publication number
- CN202924609U CN202924609U CN 201220607670 CN201220607670U CN202924609U CN 202924609 U CN202924609 U CN 202924609U CN 201220607670 CN201220607670 CN 201220607670 CN 201220607670 U CN201220607670 U CN 201220607670U CN 202924609 U CN202924609 U CN 202924609U
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- mounting plate
- oil
- acceleration cable
- oil distributor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a central rotary joint for a crane. The central rotary joint consists of an upper cable accelerator, a junction box, an upper assembling plate, an oil distributor core, a spring, a rotary connector, a shell, a lower assembling plate, an oil pipe, a lower cable accelerator, a mounting plate, a locking nut, a wire and a bracket, wherein the lower end of the oil distributor core is fixed on a bracket; a shell covers outside the oil distributor core; a through hole is formed in the oil distributor core; an upper oil pipe and a lower oil pipe are connected to the through hole through the spring and the rotary connector; the upper assembling plate is fixed at the upper end of the shell; the junction box is arranged above the upper assembling plate; one end of the upper cable accelerator penetrates through the junction box and is connected with the upper oil pipe; and the other end of the upper cable accelerator extends to a manual accelerator handle. Because the manual accelerator cable on the upper part of the rotary joint is connected with the upper oil pipe through the rotary connector, the bracing wire can be prevented from being twisted during rotation, and the wire of an electric brush can be prevented from being twisted or short circuit of the power supply is avoided; and moreover, the cost is reduced, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of crane tool equipment, is a kind of hoisting crane centre revolving joint specifically.
Background technology
In the column seat drilling of lorry-mounted crane hangs operation process, sometimes in order to increase work efficiency, need open the throttle wide, and existing throttle is mounted in below the column seat of gyro-rotor, be used as manual accelerator by a bracing wire and realize opening or closing of throttle, operate like this throttle very inconvenient; Again because existing acceleration cable can only can not turn round at axial motion, and the real work central post is all wanted full circle swinging continuously, so the stay-supported manual accelerator can not be arranged on the column seat, otherwise can make bracing wire beat strand; And existing crane rotation all is furnished with brush, and manual accelerator is arranged on and also easily makes electric wire beat strand on the column seat.Vast hoisting crane manufacturing enterprise and actual operator urgently wish a kind of compact conformation, can prevent that hand throttle wire from beating the hoisting crane centre revolving joint of strand.
Summary of the invention
The deficiency that exists in order to overcome above-mentioned prior art, technical problem to be solved in the utility model is: a kind of compact conformation is provided, can prevents that hand throttle wire from beating the hoisting crane centre revolving joint of strand.
For solving its technical matters, the technical solution adopted in the utility model is: the hoisting crane centre revolving joint of designing, by upper acceleration cable, connection box, upper mounting plate, oil distributor fuse, spring, rotary connecting joint, housing, lower mounting plate, oil pipe, lower acceleration cable, adapter plate, jam nut, electric wire and support form; Its feature is: 1. the lower end of described oil distributor fuse is fixed on support, this oil distributor fuse external cover has housing, be designed with through hole in the oil distributor fuse, be connected with upper oil pipe and lower oil pipe by spring and rotary connecting joint in through hole, the upper end of housing is fixed with mounting plate, should upper mounting plate the top be provided with connection box, an end of upper acceleration cable is connected with upper oil pipe after passing terminal box, the other end of upper acceleration cable extends to manual accelerator handle place; 2. be provided with lower mounting plate in the lower end of oil distributor fuse, oil pipe communicates with oil distributor fuse inner chamber after passing this time mounting plate, one end of lower acceleration cable passes after lower mounting plate with lower oil pipe in oil distributor fuse through hole and is connected, the other end of lower acceleration cable is fixed on adapter plate by jam nut, and electric wire is connected with the brush power supply of joint after passing lower mounting plate.During work, described oil distributor fuse and oil pipe and support are fixed as one, transfixion; Connection box, housing rotate together with column, and the lower hand throttle maintains static simultaneously, and the upper hand throttle rotates with housing, due to the effect of rotary connecting joint; The upper hand throttle is lower hand acceleration cable continuous rotation and do not beat strand relatively, also can transmit pulling force simultaneously.When returning, can get back to virgin state by the effect of spring again; Like this when when column seat drilling is done, simultaneously also can the operator throttle, acceleration cable is transferred to change speed gear box to power, realizes the action of open the throttle wide; Simultaneously, due to the effect of brush, in the time of can preventing the column rotation, electric wire is beaten strand.
Compared with prior art, the utility model has following advantage: 1. because the upper hand acceleration cable is connected by rotary connecting joint with upper oil pipe; Therefore in the time of can preventing from rotating, strand be beaten in bracing wire; 2. due to the effect of brush, can prevent that electric wire from beating when rotated strand or power supply short circuit occurs; 3. because upper hand acceleration cable and lower hand acceleration cable end are furnished with adapter plate and jam nut, institute so that follow-up connection manual accelerator be conducive to enhance productivity; 4. this mechanism transmits acceleration cable power with respect to existing by hydrostatic drive, and its cost is lower.
Description of drawings
Fig. 1 is structural representation of the present utility model;
In figure: 1. go up acceleration cable, 2. connection box, 3. go up mounting plate, 4 oil distributor fuses, and 5 springs, 6. rotary connecting joint, 7. housing, 8. descend mounting plate, and 9. oil pipe, 10. descend acceleration cable, 11. adapter plates, 12. jam nuts, 13 electric wires, 14 supports.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
with reference to Fig. 1, a kind of hoisting crane of designing uses centre revolving joint by upper acceleration cable 1, connection box 2, upper mounting plate 3, oil distributor fuse 4, spring 5, rotary connecting joint 6, housing 7, lower mounting plate 8, oil pipe 9, lower acceleration cable 10, adapter plate 11, jam nut 12, electric wire 13, support 14 forms, wherein the lower end of oil distributor fuse 4 is fixed on support 14, this oil distributor fuse external cover has housing 7, be designed with through hole in the oil distributor fuse, be connected with upper oil pipe and lower oil pipe by spring 5 and rotary connecting joint 6 in through hole, the upper end of housing 7 is fixed with mounting plate 3, should be provided with connection box 2 above upper mounting plate, one end of upper acceleration cable 1 is connected with upper oil pipe after passing terminal box 2, the other end of upper acceleration cable 1 extends to manual accelerator handle place, be provided with lower mounting plate 8 in the lower end of oil distributor fuse 4, oil pipe 9 communicates with oil distributor fuse 4 inner chambers after passing this time mounting plate, one end of lower acceleration cable 10 passes after lower mounting plate with lower oil pipe in oil distributor fuse 4 through holes and is connected, the other end of lower acceleration cable 10 is fixed on adapter plate 11 by jam nut 12, and electric wire 13 is connected with the brush power supply of joint after passing lower mounting plate 8.
Oil distributor fuse 4, oil pipe 9 and support 14 during work, lower mounting plate 8, lower hand acceleration cable 10, spring 5 is integral with frame and maintains static.Connection box 2, housing 7, upper mounting plate 3, upper acceleration cable 1, spring 5 rotates together with column, due to 6 minutes up and down two parts of rotary connecting joint, can relatively rotate, and upper part is rotated together with column, and lower part is the same with frame to be maintained static.Like this, upper hand acceleration cable 1 is lower hand acceleration cable 10 continuous rotations and do not beat strand relatively, also can transmit pulling force simultaneously.When returning, can get back to virgin state by the effect of spring again; When the drilling of column seat is done, also can be arranged on manual accelerator on column simultaneously, and can operate manual accelerator on column like this, acceleration cable is crossed upper acceleration cable 1 all to power, rotary connecting joint, and lower acceleration cable 10 is transferred to change speed gear box.Realize the action of plus-minus throttle.Simultaneously, due to the effect of brush, can prevent column when rotation, prevent that electric wire from beating strand.
Claims (2)
1. hoisting crane centre revolving joint, by upper acceleration cable, connection box, upper mounting plate, the oil distributor fuse, spring, rotary connecting joint, housing, lower mounting plate, oil pipe, lower acceleration cable, adapter plate, jam nut, electric wire and support form; It is characterized in that: the lower end of described oil distributor fuse is fixed on support, this oil distributor fuse external cover has housing, be designed with through hole in the oil distributor fuse, be connected with upper oil pipe and lower oil pipe by spring and rotary connecting joint in through hole, the upper end of housing is fixed with mounting plate, should upper mounting plate the top be provided with connection box, an end of upper acceleration cable is connected with upper oil pipe after passing terminal box, the other end of upper acceleration cable extends to manual accelerator handle place.
2. hoisting crane centre revolving joint according to claim 1, it is characterized in that: be provided with lower mounting plate in the lower end of oil distributor fuse, oil pipe communicates with oil distributor fuse inner chamber after passing this time mounting plate, one end of lower acceleration cable passes after lower mounting plate with lower oil pipe in oil distributor fuse through hole and is connected, the other end of lower acceleration cable is fixed on adapter plate by jam nut, and electric wire is connected with the brush power supply of joint after passing lower mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220607670 CN202924609U (en) | 2012-11-17 | 2012-11-17 | Central rotary joint for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220607670 CN202924609U (en) | 2012-11-17 | 2012-11-17 | Central rotary joint for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202924609U true CN202924609U (en) | 2013-05-08 |
Family
ID=48214592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220607670 Expired - Fee Related CN202924609U (en) | 2012-11-17 | 2012-11-17 | Central rotary joint for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202924609U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923571A (en) * | 2012-11-17 | 2013-02-13 | 湖南大汉起重科技有限公司 | Central revolving joint used for crane |
| CN103646604A (en) * | 2013-12-16 | 2014-03-19 | 中联重科股份有限公司 | Center swivel joint installation guiding device and installation method |
| CN104150380A (en) * | 2014-08-25 | 2014-11-19 | 湖南大汉起重科技有限公司 | Axial power transmission type centre revolving joint |
| CN104595606A (en) * | 2014-12-31 | 2015-05-06 | 三一汽车起重机械有限公司 | Center rotation connecting structure and crane |
-
2012
- 2012-11-17 CN CN 201220607670 patent/CN202924609U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923571A (en) * | 2012-11-17 | 2013-02-13 | 湖南大汉起重科技有限公司 | Central revolving joint used for crane |
| CN103646604A (en) * | 2013-12-16 | 2014-03-19 | 中联重科股份有限公司 | Center swivel joint installation guiding device and installation method |
| CN103646604B (en) * | 2013-12-16 | 2015-06-17 | 中联重科股份有限公司 | Center swivel joint installation guiding device and installation method |
| CN104150380A (en) * | 2014-08-25 | 2014-11-19 | 湖南大汉起重科技有限公司 | Axial power transmission type centre revolving joint |
| CN104595606A (en) * | 2014-12-31 | 2015-05-06 | 三一汽车起重机械有限公司 | Center rotation connecting structure and crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20151117 |
|
| EXPY | Termination of patent right or utility model |