CN202400764U - Direct-current hoist with load limiter and load self-controller - Google Patents
Direct-current hoist with load limiter and load self-controller Download PDFInfo
- Publication number
- CN202400764U CN202400764U CN2011205783724U CN201120578372U CN202400764U CN 202400764 U CN202400764 U CN 202400764U CN 2011205783724 U CN2011205783724 U CN 2011205783724U CN 201120578372 U CN201120578372 U CN 201120578372U CN 202400764 U CN202400764 U CN 202400764U
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- CN
- China
- Prior art keywords
- load
- friction disc
- direct
- tonnage
- limit
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- Expired - Fee Related
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Abstract
The utility model discloses a direct-current hoist with a load limiter and a load self-controller, which comprises a shell. A motor, a speed reducer and a winding drum are arranged in the shell, the speed reducer is in transmission connection with a winding drum shaft in the winding drum, the motor is a direct-current motor, an output shaft of the motor is connected with the load limiter which is in transmission connection with the load self-controller, and the load self-controller is in transmission connection with the speed reducer through an input gear shaft. A positive electrode and a negative electrode of a direct-current power supply can be directly inputted to a positive electrode and a negative electrode of the direct-current motor, the direct-current motor generates power, and finally power is transferred to the winding drum for hoisting weights by the aid of the load limiter, the load self-controller and the speed reducer. The direct-current hoist is simple in structure and safe in use, has the functions of limiting and self-controlling of load and is suitable for direct-current power supply occasions, operating safety factor of the hoist is greatly increased, and the direct-current hoist has a wide market prospect.
Description
Technical field
The utility model relates to a kind of up-down weight-lifting equipment, particularly a kind of direct current lifting machine with limit for tonnage and load home-made contrivance.
Background technology
Lifting machine is a kind of general up-down weight-lifting equipment that uses, occur on market and the data and the lifting machine report mainly be with alternating current as propulsion source, be divided into industrial and two kinds of family expenses; Industrial is the three-phase lifting machine, and mostly its structural shape is to adopt phase asynchronous taper braking motor, reel, the coaxial in order connection of retarder; Family expenses be single-phase lifting machine, mostly its structural shape is to adopt single-phase asynchronous side magnetic braking motor, retarder, the coaxial in order connection of reel.Because existing lifting machine can only be satisfied with the occasion that source of AC is arranged, and just powerless for the occasion of having only direct supply, and does not all have the limit for tonnage function, has very big potential safety hazard.
Summary of the invention
The utility model has overcome the deficiency that prior art exists, and provides a kind of simple in structure, safe in utilization, has the limit for tonnage function, is suitable for the direct current lifting machine of direct supply occasion.
For realizing above-mentioned purpose, the utility model adopts following technical scheme: a kind of direct current lifting machine with limit for tonnage and load home-made contrivance includes housing; Be provided with motor, retarder and reel in the housing, the drum shaft in described retarder and the reel is in transmission connection, and described motor is a DC machine; The output shaft of described motor is connected with a load limiter; Described load limiter and load self-control device are in transmission connection, and described load self-control device is in transmission connection through input gear axle and retarder, and described load limiter includes limit for tonnage spring, friction disc A, limit for tonnage friction lining, friction disc B; Described limit for tonnage friction lining is connected with friction disc A one; Described friction disc A and output shaft are in transmission connection, and described limit for tonnage spring is actively socketed on the cylindrical of output shaft, and the limit for tonnage friction lining is pressed between friction disc A and the friction disc B; Described load self-control device includes dial, bidirectional cam, friction disc, friction lining, Brake Block, clutch reed; Described dial and the design of friction disc B one, described bidirectional cam is connected with input gear shaft drive, and described friction disc is connected with the friction lining one; Described friction disc and clutch reed are actively socketed on the cylindrical of input gear axle, and described clutch reed breaks away from Brake Block with friction disc and friction lining.
The utility model can be directly be input to the corresponding both positive and negative polarity of DC machine with the both positive and negative polarity of direct supply, and DC machine produces power, through load limiter, load self-control device and retarder, gives reel with transmission of power at last and weight is promoted.Described load self-control device has only when motor is static, and the weight that is suspended on the reel descends, and drives drum shaft and rotates, through retarder; Power is passed to the input gear axle, bidirectional cam is rotated, thereby promote friction disc and friction lining; Friction lining is compressed and Brake Block, hindered the rotation of bidirectional cam, cause input gear axle, retarder, drum shaft also to remain static; Reel can't rotate, and weight also just stops to have descended, thereby plays the effect of braking.When the weight of heavy of need lifting has surpassed the load of limit for tonnage spring; The limit for tonnage friction lining just can skid on the contact surface of friction disc B, and reel can't be rotated, and can not weight be promoted; Thereby play the effect of limit for tonnage, improved the safety of operation coefficient of machine greatly.
The beneficial effect of the utility model is, owing to selected DC machine for use, enlarged the use occasion of lifting machine, and such as using having only on the goods carrying vehicle of direct supply, the current society in that labor cost increases day by day has vast market prospect.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Accompanying drawing is the structural representation of the utility model embodiment;
1. housings among the figure, 2. motor, 21. output shafts, 3. retarder, 4. reel; 41. drum shaft, 5. load limiter, 51. limit for tonnage springs, 52. friction disc A, 53 limit for tonnage friction linings; 54 friction disc B, 6. load is made device, 61. dials, 62. bidirectional cams, 63. friction discs by oneself; 64. friction lining, 65. Brake Blocks, 66. clutch reeds, 7. input gear axle.
The specific embodiment
With reference to accompanying drawing, a kind of direct current lifting machine with limit for tonnage and load home-made contrivance includes housing 1; Be provided with motor 2, retarder 3 and reel 4 in the housing 1, described retarder 3 is in transmission connection with reel 4 interior drum shaft 41, and described motor 2 is a DC machine; The output shaft 21 of described motor 2 is connected with a load limiter 5; Described load limiter 5 is in transmission connection with load self-control device 6, and described load self-control device 6 is in transmission connection through input gear axle 7 and retarder 3, and described load limiter 5 includes limit for tonnage spring 51, friction disc A52, limit for tonnage friction lining 53, friction disc B54; Described limit for tonnage friction lining 53 is connected with friction disc A52 one; Described friction disc A52 and output shaft 21 are in transmission connection, and described limit for tonnage spring 51 is actively socketed on the cylindrical of output shaft 21, and limit for tonnage friction lining 53 is pressed between friction disc A52 and the friction disc B54; Described load self-control device 6 includes dial 61, bidirectional cam 62, friction disc 63, friction lining 64, Brake Block 65, clutch reed 66; Described dial 61 is in transmission connection with input gear axle 7 with friction disc B54 one design, described bidirectional cam 62, and described friction disc 63 is connected with friction lining 64 one; Described friction disc 63 is actively socketed on the cylindrical of input gear axle 7 with clutch reed 66, and described clutch reed 66 breaks away from Brake Block 65 with friction disc 63 and friction lining 64.
The concrete principle of work of the utility model is: the both positive and negative polarity of direct supply is input to motor 2 corresponding both positive and negative polarities, this moment motor 2 output shaft 21 high speed rotating, friction disc A52 that is in transmission connection with output shaft 21 and limit for tonnage friction lining 53 also rotation synchronously; Driving friction disc B54, dial 61 and bidirectional cam 62 simultaneously rotates; And give input gear axle 7 with transmission of power, and slow down through retarder 3, drum shaft 41 is slowly run; Drive reel 4 and rotate, thereby weight is promoted; If the transposing of the both positive and negative polarity of direct supply is input to motor 2 corresponding both positive and negative polarities, this moment motor 2 output shaft 21 reverse high speed rotating, the friction disc A52 and the also synchronous backward rotation of limit for tonnage friction lining 53 that are in transmission connection with output shaft 21; Drive friction disc B54, dial 61 and bidirectional cam 62 backward rotation simultaneously; And power reverse passed to input gear axle 7, and slow down through retarder 3, drum shaft 41 low-speed reverse are rotated; Drive reel 4 backward rotation, thereby weight is transferred; When motor 2 stopped, the weight that is suspended on the reel 4 descended, and drove drum shaft 41 and rotated, through retarder 3; Power is passed to input gear axle 7, bidirectional cam 62 is rotated, thereby promote friction disc 63 and friction lining 64; Friction lining 64 is compressed and Brake Block 65, hindered the rotation of bidirectional cam 62, cause input gear axle 7, retarder 3, drum shaft 41 also to remain static; Reel 4 can't rotate, and weight also just stops to have descended, thereby plays the effect of braking; When the weight of heavy of need lifting has surpassed the load of limit for tonnage spring 51; Limit for tonnage friction lining 53 just can skid on the contact surface of friction disc B54, and reel 4 can't be rotated, and can not weight be promoted; Thereby play the effect of limit for tonnage, improved the safety of operation coefficient of machine greatly.
Claims (1)
1. direct current lifting machine with limit for tonnage and load home-made contrivance; Include housing (1); Be provided with motor (2), retarder (3) and reel (4) in the housing (1); Described retarder (3) is in transmission connection with the interior drum shaft (41) of reel (4); It is characterized in that: described motor (2) is a DC machine, and the output shaft (21) of described motor (2) is connected with a load limiter (5), and described load limiter (5) is in transmission connection with load self-control device (6); Described load self-control device (6) is in transmission connection through input gear axle (7) and retarder (3); Described load limiter (5) includes limit for tonnage spring (51), friction disc A (52), limit for tonnage friction lining (53), friction disc B (54), and described limit for tonnage friction lining (53) is connected with friction disc A (52) one, and described friction disc A (52) is in transmission connection with output shaft (21); Described limit for tonnage spring (51) is actively socketed on the cylindrical of output shaft (21); And limit for tonnage friction lining (53) is pressed between friction disc A (52) and the friction disc B (54), described load self-control device (6) includes dial (61), bidirectional cam (62), friction disc (63), friction lining (64), Brake Block (65), clutch reed (66), described dial (61) and the design of friction disc B (54) one; Described bidirectional cam (62) is in transmission connection with input gear axle (7); Described friction disc (63) is connected with friction lining (64) one, and described friction disc (63) and clutch reed (66) are actively socketed on the cylindrical of input gear axle (7), and described clutch reed (66) breaks away from Brake Block (65) with friction disc (63) and friction lining (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205783724U CN202400764U (en) | 2011-12-31 | 2011-12-31 | Direct-current hoist with load limiter and load self-controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205783724U CN202400764U (en) | 2011-12-31 | 2011-12-31 | Direct-current hoist with load limiter and load self-controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202400764U true CN202400764U (en) | 2012-08-29 |
Family
ID=46698427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205783724U Expired - Fee Related CN202400764U (en) | 2011-12-31 | 2011-12-31 | Direct-current hoist with load limiter and load self-controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202400764U (en) |
-
2011
- 2011-12-31 CN CN2011205783724U patent/CN202400764U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20131231 |