CN211874982U - Low-speed barring gear - Google Patents
Low-speed barring gear Download PDFInfo
- Publication number
- CN211874982U CN211874982U CN202020334461.3U CN202020334461U CN211874982U CN 211874982 U CN211874982 U CN 211874982U CN 202020334461 U CN202020334461 U CN 202020334461U CN 211874982 U CN211874982 U CN 211874982U
- Authority
- CN
- China
- Prior art keywords
- driving
- half coupling
- connecting piece
- output shaft
- portal
- 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.)
- Active
Links
Images
Landscapes
- Mechanical Operated Clutches (AREA)
Abstract
A low-speed barring gear comprises a base, a speed reduction motor and a barring output shaft; a clutch mechanism is arranged between the speed reduction output shaft of the speed reduction motor and the turning gear output shaft; the clutch mechanism comprises a left half coupling and a right half coupling; a torque transmission gear is arranged between the left half coupling and the right half coupling; the left half coupling is sleeved on the speed reduction output shaft; a deflector rod mechanism is arranged outside the left half coupling; the deflector rod mechanism comprises a deflector rod portal; the deflector rod portal comprises two deflector rods; the bottom of the deflector rod is hinged with the front engine base; the tops of the two deflector rods are connected through a connecting rod; a driving mechanism is arranged above the deflector rod portal; the driving mechanism comprises a driving bracket and a hydraulic cylinder for driving the driving lever portal frame to swing; the top of the driving lever portal is provided with a driving connecting piece; the driving connecting piece is provided with a vertical sliding chute, and a driving pin is arranged in the sliding chute; the driving pin is connected with the end part of a piston rod of the hydraulic cylinder. The utility model discloses operate steadily, safe and reliable, efficient, easy and simple to handle laborsaving, can reach the effect of automatic input.
Description
Technical Field
The utility model belongs to the technical field of electromechanical device overhauls and opens and stop, and especially a low-speed barring gear.
Background
When power equipment such as an engine and the like used in electromechanical equipment is overhauled, a rotary drum of the power equipment needs to rotate at a low speed to a certain angle for overhauling; when the power equipment is started, because the power of the motor is large, mechanical and electrical elements are impacted greatly, the shafting of the power equipment needs to be subjected to low-speed rotation and transited to normal working rotating speed, and therefore the starting load of the motor cannot be increased to damage the motor.
The existing barring mode is generally realized by manual barring, and the manual barring has the advantages of low efficiency, high risk, unstable operation and high labor cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide a low-speed barring gear that operates steadily, safe and reliable, easy and simple to handle laborsaving.
The utility model aims to solve the technical problem that the utility model is realized by the following technical proposal, the utility model relates to a low-speed barring gear, which is characterized in that the utility model comprises a frame, a gear motor arranged on the front frame and a barring output shaft arranged on the rear frame;
the speed reduction output shaft of the speed reduction motor and the turning gear output shaft are coaxially arranged; a clutch mechanism is arranged between the speed reduction output shaft and the barring output shaft; the clutch mechanism comprises a left half coupling and a right half coupling fixedly connected with the turning gear output shaft; torque transmission teeth for matching and meshing are arranged between the left half coupling and the right half coupling; the left half coupling is sleeved on the speed reduction output shaft through the matching of a key and a key groove; a deflector rod mechanism for driving the left half coupling and the right half coupling to engage and disengage is arranged outside the left half coupling;
the deflector rod mechanism comprises a deflector rod portal; the driving lever portal comprises two driving levers arranged on two sides of the left half coupling; the bottom of the shifting rod is hinged with the front engine base; the tops of the two deflector rods are connected through a connecting rod;
an annular shifting fork groove is formed in the left half coupling; the two shift levers are provided with shift blocks matched with the shift fork grooves;
a driving mechanism for driving the driving lever portal to swing is arranged above the driving lever portal;
the driving mechanism comprises a driving support arranged on the front base and a hydraulic cylinder arranged on the driving support and used for driving the driving lever portal to swing;
the top of the deflector rod portal is provided with a driving connecting piece connected with the connecting rod; the driving connecting piece is provided with a vertical sliding chute, and a driving pin is arranged in the sliding chute; the driving pin is connected with the end part of a piston rod of the hydraulic cylinder.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the low-speed barring gear in: and a handle for manually driving the driving lever portal is arranged on one side of the driving connecting piece, which is far away from the hydraulic cylinder.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the low-speed barring gear in: the axial direction of the hydraulic cylinder piston rod is parallel to the axial direction of the speed reduction output shaft.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the low-speed barring gear in: and the upper part of the driving bracket is provided with an elastic self-locking mechanism which is used for realizing limit by matching with the driving connecting piece.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the low-speed barring gear in: the elastic self-locking mechanism comprises a self-locking wheel which is arranged at the top of the driving connecting piece and is used for realizing the limiting by matching with the driving connecting piece; the self-locking wheel is connected with the driving support through an elastic connecting piece.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the low-speed barring gear in: an inclined plane used for guiding the self-locking wheel to return is arranged on one side, close to the end part of the piston rod, of the top of the driving connecting piece; an arc-shaped surface used for being matched with the self-locking wheel for limiting is arranged on one side, far away from the end part of the piston rod, of the top of the driving connecting piece; the inclined plane and the arc-shaped plane are smoothly connected at the top end of the driving connecting piece.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, above the low-speed barring gear in: the driving pin is provided with a pulley sliding along the sliding groove.
Compared with the prior art, the beneficial effects of the utility model are that:
the speed reducing motor transmits power to a rotary equipment shaft system through a clutch mechanism. When the speed reducing motor is slowly started in a variable frequency mode, the arranged hydraulic cylinder is electrified and pulls the deflector rod mechanism to drive the clutch mechanism to be meshed, so that automatic input is realized, and the rotary device shafting is rotated at a rated rotating speed;
under the condition that the right half coupling is fixed, the left half coupling is driven to realize meshing and disengaging movement with the right half coupling by arranging the deflector rod portal frame, and the left half coupling and the right half coupling can be ensured to be accurately butted due to the coaxial arrangement of the speed reduction output shaft and the turning gear output shaft, so that the energy consumption is low and the working efficiency is high; through keys and key grooves, the left half coupling and the right half coupling can synchronously rotate after being butted, and the whole operation is stable;
through setting up drive connecting piece and drive round pin for during driving lever portal and pneumatic cylinder cooperation work, the action is nimble not had the hindrance, simple structure, simple operation, safe and reliable, makes left half-coupling and right half-coupling reach the effect that automatic input, reduces the cost of labor.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a diagram illustrating the operation of the driving mechanism of the present invention;
FIG. 3 is an enlarged view of a portion of the drive mechanism of FIG. 1;
FIG. 4 is an enlarged view of a portion of the spring self-locking mechanism of FIG. 2;
fig. 5 is a circuit diagram of the present invention;
in the figure: 1. a machine base; 2. a reduction motor; 3. a left half coupling; 4. a right half coupling; 5. a key; 6. a deflector rod portal; 7. a deflector rod; 8. a connecting rod; 9. an annular shift fork groove; 10. shifting blocks; 11. a drive bracket; 12. a hydraulic cylinder; 13. a drive connection; 14. a chute; 15. a drive pin; 16. a piston rod; 17. a handle; 18. a self-locking wheel; 19. a pulley; 20. a guide sleeve; 21. a guide bar; 22. a return spring.
Detailed Description
The following further describes embodiments of the present invention in order to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.
the speed reduction output shaft of the speed reduction motor 2 and the turning gear output shaft are coaxially arranged; a clutch mechanism is arranged between the speed reduction output shaft and the barring output shaft; the clutch mechanism comprises a left half coupling 3 and a right half coupling 4 fixedly connected with the turning gear output shaft; torque transmission teeth for matching and meshing are arranged between the left half coupling 3 and the right half coupling 4; the left half coupling 3 is sleeved on the speed reduction output shaft through the matching of the key 5 and the key groove; due to the arrangement, the left half coupling 3 and the right half coupling 4 can rotate synchronously while being in accurate butt joint;
a deflector rod mechanism for driving the left half coupling 3 and the right half coupling 4 to engage and disengage is arranged outside the left half coupling 3;
the deflector rod mechanism comprises a deflector rod portal 6; the driving lever portal 6 comprises two driving levers 7 arranged at two sides of the left half coupling 3; the bottom of the deflector rod 7 is hinged with the front machine base 1, so that the deflector rod 7 can swing conveniently; the tops of the two shift levers 7 are connected through a connecting rod 8;
an annular shifting fork groove 9 is formed in the left half coupling 3; the two shift levers 7 are provided with shift blocks 10 matched with the shift fork grooves;
a driving mechanism for driving the driving lever portal frame 6 to swing is arranged above the driving lever portal frame 6;
the driving mechanism comprises a driving bracket 11 arranged on the front machine base 1 and a hydraulic cylinder 12 arranged on the driving bracket 11 and used for driving the driving lever portal frame 6 to swing;
the top of the driving lever portal frame 6 is provided with a driving connecting piece 13 connected with the connecting rod 8; the driving connecting piece 13 is provided with a vertical sliding groove 14, and a driving pin 15 is arranged in the sliding groove 14; the driving pin 15 is connected with the end of a piston rod 16 of the hydraulic cylinder 12;
the driving connecting piece 13 and the sliding groove 14 are arranged, so that when the driving lever portal frame 6 and the hydraulic cylinder 12 work in a matched mode, the driving lever portal frame is flexible in action, free of stagnation and simple in structure, the left half coupling 3 and the right half coupling 4 achieve the effect of automatic input and disengagement, labor cost is reduced, and overall working efficiency is improved.
In the low-speed barring gear in embodiment 2 and embodiment 1, the driving connecting piece 13 is provided with a handle 17 for manually driving the deflector rod gantry 6 on the side far away from the hydraulic cylinder 12; set up like this and make the utility model discloses possess manual and electronic function.
The axis direction of the piston rod 16 of the hydraulic cylinder 12 is parallel to the axis direction of the speed reduction output shaft, and the hydraulic cylinder 12 is fixed on the driving support 11, so that when the hydraulic cylinder 12 drives the shifting lever portal frame 6, the shifting lever portal frame is more convenient and faster, and the energy consumption is reduced.
And an elastic self-locking mechanism which is used for realizing limit by matching with the driving connecting piece 13 is arranged at the upper part of the driving bracket 11.
The elastic self-locking mechanism comprises a self-locking wheel 18 which is arranged at the top of the driving connecting piece 13 and is used for realizing the limit by matching with the driving connecting piece 13; the self-locking wheel 18 is connected with the driving bracket 11 through an elastic connecting piece; the elastic connecting piece presses the self-locking wheel 18 downwards all the time;
referring again to fig. 4, the elastic connection member includes a guide sleeve 20 fixed on the driving bracket 11 and a guide rod 21 provided in the guide sleeve 20; the self-locking wheel 18 is arranged below the guide rod 21; a return spring 22 is provided between the guide sleeve 20 and the guide rod 21.
An inclined surface for guiding the self-locking wheel 18 to return is arranged on one side of the top of the driving connecting piece 13 close to the end part of the piston rod 16; an arc-shaped surface used for limiting the matching self-locking wheel 18 is arranged on one side of the top of the driving connecting piece 13, which is far away from the end part of the piston rod 16; the inclined plane and the arc-shaped plane are smoothly connected at the top end of the driving connecting piece 13; the bidirectional limiting function is achieved when the clutch mechanism is located at the disengaging position and the engaging position, and the clutch mechanism is prevented from being disengaged or engaged suddenly due to emergency.
The driving pin 15 is provided with a pulley 19 which slides along the sliding groove 14, so that the driving mechanism and the deflector rod door frame 6 are further ensured to operate flexibly without jamming.
The clutch mechanism adopts an overrunning clutch mechanism.
The specific working process is as follows:
the utility model discloses have functions such as automatic, manual, inching.
Referring to fig. 5, the utility model discloses have functions such as automatic, manual, inching.
Taking the coal mill as an example, when the initial position (disconnection) is confirmed, an air switch of the control cabinet is opened to supply power to the speed reduction motor 2.
1. Automatic throw-in and throw-off operations;
(1) automatic input:
a hydraulic pump of a button SB1 is pressed to work, an electromagnetic directional valve is put into operation, the hydraulic cylinder 12 pulls a deflector rod mechanism to drive a clutch mechanism to move towards a meshing direction, a time relay KT1 is electrified, and a speed reducing motor works after 15 seconds; after the clutch mechanism is engaged, the hydraulic cylinder 12 travels to the input position, the magnetic switch at the input position gives a signal, the electromagnetic directional valve is powered off, and oil is drained from the middle position of the electromagnetic directional valve. The barring enters the barring work.
(2) Automatic disengagement:
the coal mill starts, the motor is put into operation, when the shafting speed exceeds the working speed of the speed reducing motor, the left half coupling 3 is flushed by inertia to be disengaged, but the left half coupling is not returned to the initial position, a magnetic switch at the disengaging position on the hydraulic cylinder 12 gives a signal, the intermediate relay KA5 is powered on, the positions of the clutch mechanism and the hydraulic cylinder 12 are required to be kept at the position for 60 seconds, the time relay KT2 can output the signal, the intermediate relay KA3 is powered on, the hydraulic cylinder 12 drives the left half coupling 3 to return to the initial disengaging position, the electromagnetic reversing valve is powered off, and oil is drained from the middle position. After the time relay KT2 sends out a signal, the time relay KT3 is electrified and delayed, and after 90 seconds, the circuit of the hydraulic pump is disconnected, so that the hydraulic pump stops working.
2. Manual throw-in and throw-off operations:
(1) manual input:
pressing down the gear motor 2 start button SB4, gear motor 2 works, left half-coupling 3 rotates, at this moment, pushing the driving lever mechanism simultaneously, make left half-coupling 3 and right half-coupling 4 mesh, the barring promptly gets into the dish and changes operating condition after left half-coupling 3 and right half-coupling 4 mesh.
(2) Manual disengagement:
pressing the stop button of SB3 stops both the hydraulic pump and the reduction motor 2, and manually pulling the shift lever mechanism to disengage the left coupling half 3 to return to the initial position.
3. Inching operation:
the jog function can be implemented by using the start button SB4 of the reduction motor 2 in cooperation with the stop button SB 3.
4. Electric disengaging operation:
no matter adopt automatic, manual, the inching use the utility model discloses, all can use electronic the barring operation of withdrawing from behind the stopping plate car: when the button SB2 is pressed, the intermediate relay KA3 is powered on, the speed reducing motor 2 is powered off, the electromagnetic directional valve is moved to the withdrawing working position, the hydraulic cylinder 12 drives the left half coupler 3 to return to the initial disengaging position, the electromagnetic directional valve is powered off, and the oil is drained when the electromagnetic directional valve returns to the middle position. Finally, the stop button SB3 is pressed to stop the hydraulic pump.
5. Stopping the operation: the inspection the utility model discloses get back to initial position, close switch.
Claims (7)
1. A low-speed barring gear, its characterized in that: comprises a base, a speed reducing motor arranged on the front base and a barring output shaft arranged on the rear base;
the speed reduction output shaft of the speed reduction motor and the turning gear output shaft are coaxially arranged; a clutch mechanism is arranged between the speed reduction output shaft and the barring output shaft; the clutch mechanism comprises a left half coupling and a right half coupling fixedly connected with the turning gear output shaft; torque transmission teeth for matching and meshing are arranged between the left half coupling and the right half coupling; the left half coupling is sleeved on the speed reduction output shaft through the matching of a key and a key groove; a deflector rod mechanism for driving the left half coupling and the right half coupling to engage and disengage is arranged outside the left half coupling;
the deflector rod mechanism comprises a deflector rod portal; the driving lever portal comprises two driving levers arranged on two sides of the left half coupling; the bottom of the shifting rod is hinged with the front engine base; the tops of the two deflector rods are connected through a connecting rod;
an annular shifting fork groove is formed in the left half coupling; the two shift levers are provided with shift blocks matched with the shift fork grooves;
a driving mechanism for driving the driving lever portal to swing is arranged above the driving lever portal;
the driving mechanism comprises a driving support arranged on the front base and a hydraulic cylinder arranged on the driving support and used for driving the driving lever portal to swing;
the top of the deflector rod portal is provided with a driving connecting piece connected with the connecting rod; the driving connecting piece is provided with a vertical sliding chute, and a driving pin is arranged in the sliding chute; the driving pin is connected with the end part of a piston rod of the hydraulic cylinder.
2. The low-speed barring device according to claim 1, wherein: and a handle for manually driving the driving lever portal is arranged on one side of the driving connecting piece, which is far away from the hydraulic cylinder.
3. The low-speed barring device according to claim 1, wherein: the axial direction of the hydraulic cylinder piston rod is parallel to the axial direction of the speed reduction output shaft.
4. The low-speed barring device according to claim 1, wherein: and the upper part of the driving bracket is provided with an elastic self-locking mechanism which is used for realizing limit by matching with the driving connecting piece.
5. The low-speed barring device according to claim 4, wherein: the elastic self-locking mechanism comprises a self-locking wheel which is arranged at the top of the driving connecting piece and is used for realizing the limiting by matching with the driving connecting piece; the self-locking wheel is connected with the driving support through an elastic connecting piece.
6. The low-speed barring device according to claim 5, wherein: an inclined plane used for guiding the self-locking wheel to return is arranged on one side, close to the end part of the piston rod, of the top of the driving connecting piece; an arc-shaped surface used for being matched with the self-locking wheel for limiting is arranged on one side, far away from the end part of the piston rod, of the top of the driving connecting piece; the inclined plane and the arc-shaped plane are smoothly connected at the top end of the driving connecting piece.
7. The low-speed barring device according to claim 1, wherein: the driving pin is provided with a pulley sliding along the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020334461.3U CN211874982U (en) | 2020-03-17 | 2020-03-17 | Low-speed barring gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020334461.3U CN211874982U (en) | 2020-03-17 | 2020-03-17 | Low-speed barring gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211874982U true CN211874982U (en) | 2020-11-06 |
Family
ID=73257935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020334461.3U Active CN211874982U (en) | 2020-03-17 | 2020-03-17 | Low-speed barring gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211874982U (en) |
-
2020
- 2020-03-17 CN CN202020334461.3U patent/CN211874982U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3030548B2 (en) | Device for operating a shift device of a gear transmission and for engaging and disengaging a main clutch | |
| CN107376769B (en) | Transmission mechanism suitable for double-rotation type coating mixing machine | |
| CN100584496C (en) | Dual-speed self-tapping machine tool | |
| CN101318209A (en) | Steel bar straightening and shearing machine | |
| CN211874982U (en) | Low-speed barring gear | |
| CN206957819U (en) | A kind of electric barring machine | |
| US4978080A (en) | Rotor indexing system | |
| CN101409172B (en) | Electrically-operated mechanism for middle-low-tension switch cabinet grounding switch | |
| CN2780999Y (en) | Barring gear | |
| CN201257557Y (en) | Dual-speed self-tapping machine tool | |
| CN101966759B (en) | Electrical screw press of clutch | |
| CN213235963U (en) | Double-station sleeve driving device | |
| CN212297459U (en) | Double-motor quick and slow driving mechanism | |
| CN201058371Y (en) | Tilting arrangement of torpedo type metal mixer car | |
| CN211777167U (en) | Pneumatic control type driving turntable box | |
| CN201295726Y (en) | Reinforcing steel adjusting cutter | |
| CN219430688U (en) | Double-speed screw hoist with safety hand-operated device | |
| CN213017358U (en) | Clutch device | |
| CN203768676U (en) | Mechanical clutch device for deceleration clutch of washing machine | |
| CN204953791U (en) | Direct -drive type electric worm gear press | |
| US3306122A (en) | Press | |
| CN201093033Y (en) | Worm wheel worm reducing mechanism with clutch means | |
| CN219217387U (en) | Gear shifting device of petroleum winch speed reducer | |
| CN221049424U (en) | Dual-functional air outlet | |
| CN214739784U (en) | Manpower construction hanging flower basket device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |