CN203374740U - Variable-speed feeding box - Google Patents
Variable-speed feeding box Download PDFInfo
- Publication number
- CN203374740U CN203374740U CN201320330283.7U CN201320330283U CN203374740U CN 203374740 U CN203374740 U CN 203374740U CN 201320330283 U CN201320330283 U CN 201320330283U CN 203374740 U CN203374740 U CN 203374740U
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- China
- Prior art keywords
- shaft
- speed
- gear
- variable
- feed
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- Withdrawn - After Issue
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Abstract
The utility model provides a variable-speed feeding box which is convenient to operate and small in size. The variable-speed feeding box is provided aiming at the technical problems that in the prior art, a gearbox and a feeding box are combined together, so that the size is large, and the requirement of a weld valve on-line repairing machine can not be met. According to the scheme, the variable-speed feeding box comprises a main drive shaft, a box body, a high-speed gear, a low-speed gear, a variable-speed shaft, a variable-speed gear, a shifting fork, a shifting fork shaft, a shifting fork gear shaft and a driving device used for driving the main drive shaft to rotate. The driving device is installed on the box body, the main drive shaft is connected with the driving device, the high-speed gear and the low-speed gear are installed on the main drive shaft and rotate synchronously with the main drive shaft, the variable-speed shaft is arranged on the box body in a rotating mode, the variable-speed gear is installed on the variable-speed shaft in a sliding mode and rotates synchronously with the variable-speed shaft, the shifting fork shaft is installed on the box body, the shifting fork is arranged on the shifting fork shaft in a sliding mode and connected with the variable-speed gear, and a rack is arranged on the shifting fork. The shifting fork gear at one end of the shifting fork gear shaft is meshed with the rack on the shifting fork, and the other end of the shifting fork gear shaft extends out of the box body.
Description
Technical field
The utility model relates to a kind of variable-speed feeding speed case, especially a kind of for welding the variable-speed feeding speed case on the online repairing machine of valve.
Background technique
In prior art, gearbox and feed box are two parts independently, do not have integrated as a wholely, want speed change simultaneously need use together with two component combinations with feeding.But when both are combined, its volume will increase, make application be restricted.
And welding its main application of the online repairing machine of valve is for field maintenance, some site space is narrow and small, and the gearbox that volume is larger and feed box are combined into the scene that an integral body can not be applied to this kind of narrow space.
Summary of the invention
Technical problem to be solved in the utility model is: for gearbox of the prior art and feed box, it is combined, its volume is large, can not meet the demand of welding valve online repairing machine, the utility model provides a kind of easy to operate, simple in structure, variable-speed feeding speed case that volume is little.
The technological scheme that the utility model is taked is:
A kind of variable-speed feeding speed case, comprise main drive shaft, casing, high gear, low speed gear, variable-speed shaft, speed change gear, shift fork, declutch shift shaft, shift fork gear shaft and the drive unit that drives main drive shaft to rotate; Drive unit is contained on casing, main drive shaft is connected with drive unit, high gear all is contained on main drive shaft and with main drive shaft and synchronizes and rotate with low speed gear, variable-speed shaft rotates and is arranged on casing, speed change gear is slidably mounted on variable-speed shaft and with variable-speed shaft synchronizes and rotates, declutch shift shaft is contained on casing, and shift fork is slidably arranged in declutch shift shaft and is connected with speed change gear, and described shift fork is provided with tooth bar; The shift fork gear of shift fork gear shaft one end is meshed with the shift fork upper rack, and the shift fork gear shaft the other end extend into the outside of casing.
Drive unit comprises motor, worm and worm wheel, motor is fixed on casing, the input end of worm screw is connected with the output terminal of motor, worm gear is meshed with worm screw and is positioned at casing, described worm gear is provided with central shaft hole, main drive shaft is arranged in the central shaft hole of worm gear, and main drive shaft is synchronizeed and rotated with worm gear.
In order to improve the working life of this variable-speed feeding speed case, the utility model also comprises the feed overload protection arrangement, described feed overload protection arrangement comprises the feed driveshaft, the feed gearwheel, the feed small gear, the overload separation cover, the overload clutch spring, the overload adjusting handle, steel ball and case, the feed driveshaft is contained in main drive shaft, the feed gearwheel is contained on main drive shaft, the feed small gear is contained on variable-speed shaft, feed gearwheel and feed small gear are intermeshing, overload separation is sleeved on variable-speed shaft and with variable-speed shaft synchronizes and rotates, steel ball is between overload separation cover and feed small gear and with overload separation, overlap and the feed small gear contacts simultaneously, the overload adjusting handle is contained in the top of variable-speed shaft, the overload clutch spring between overload adjusting handle and overload separation cover and simultaneously with transship adjusting handle and overload separation cover and contact, case covers on the feed gearwheel and is connected on the feed small gear and with casing, described feed gearwheel is provided with notch.
The utility model also comprises the feed handwheel, and described feed handwheel is slidably arranged in the top of main drive shaft, the feed handwheel be provided with the feed gearwheel on the driver slot that agrees with mutually of notch.
For the slip that makes speed change gear more steadily, reliable, on variable-speed shaft described in the utility model with speed change gear contacted one section be splined shaft.
For the ease of the carrying of this variable-speed feeding speed case, the utility model also comprises the lifting handle that is arranged on the casing both sides.
Beneficial effect
The utility model is compared with prior art: 1. the utility model is integrated in gearbox and feed box in a housing, compact structure, and volume is little, can better narrow and small scene, application space.2. the utility model is simple in structure, easy to operate.3. variable-speed feeding speed case of the present utility model adopts the differential type delivering gear, and its feed is more steadily reliable.4, adopt mechanical Worm Wheel System that power is provided, its power transmission is effective, can guarantee the work of variable-speed feeding speed case high efficient and reliable.
The accompanying drawing explanation
Fig. 1 is the structural representation of optimal technical scheme of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the C-C sectional view of Fig. 1.
Wherein, 1, the overload adjusting handle, 2, the overload clutch spring, 3, overload separation cover, 4, the feed small gear, 5, steel ball, 6, speed change gear, 7, casing, 8, variable-speed shaft, 9, feed handwheel, 9-1, driver slot, 10, the feed driveshaft, 12, main drive shaft, 14, case, 15, the feed gearwheel, 15-1, notch, 17, high gear, 18, low speed gear, 19, declutch shift shaft, 20, shift fork, 20-1, tooth bar, 21, lifting handle, 24, shift fork gear shaft, 24-1, shift fork gear, 27, worm screw, 28, worm gear, 31, motor.
Embodiment
For content of the present utility model is become apparent more, below in conjunction with accompanying drawing 1-Fig. 3 and embodiment, be further described.
Fig. 1 is the enforcement illustration of optimal technical scheme of the present utility model.
As shown in Figure 1, the variable-speed feeding speed case, comprise main drive shaft 12, casing 7, high gear 17, low speed gear 18, variable-speed shaft 8, speed change gear 6, shift fork 20, declutch shift shaft 19, shift fork gear shaft 24, feed handwheel 9, drive unit and feed overload protection arrangement.
Drive unit comprises motor 31, worm screw 27 and worm gear 28.As shown in Figure 2.
The feed overload protection arrangement comprises feed driveshaft 10, feed gearwheel 15, feed small gear 4, overload separation cover 3, overload clutch spring 2, overload adjusting handle 1, steel ball 5 and case 14.
The drive unit drive unit of the prior art that driving main drive shaft 12 described in the utility model rotates can be applied on the utility model, but the preferential drive unit that adopts following structure of the utility model.
The drive unit that the utility model adopts comprises motor 31, worm screw 27 and worm gear 28, motor 31 is fixed on casing 7, the input end of worm screw 27 is connected with the output terminal of motor 31, and worm gear 28 is meshed with worm screw 27 and is positioned at casing 7, and described worm gear 28 is provided with central shaft hole.
Variable-speed feeding speed case of the present utility model can coordinate cutter to be used in use; when coordinating cutter to use; will consider the overload protection problem when Tool advance amount is excessive, in order to solve the overload problem that the Tool advance amount is large, the utility model has also been set up the feed overload protection arrangement.Feed overload protection arrangement of the prior art, also can use for the utility model.But variable-speed feeding speed case of the present utility model preferentially adopts the feed overload protection arrangement of following structure.As shown in Figure 1.
While adopting feed overload protection arrangement of the present utility model, in the utility model, described main drive shaft 12 is established the center hole of up/down perforation main drive shaft 12 axis.
The feed overload protection arrangement comprises feed driveshaft 10, feed gearwheel 15, feed small gear 4, overload separation cover 3, overload clutch spring 2, overload adjusting handle 1, steel ball 5, case 14 and feed handwheel 9.Feed driveshaft 10 is contained in the center hole of main drive shaft 12, feed gearwheel 15 be sleeved on main drive shaft 12 and and main drive shaft 12 between relative movement is arranged, when main drive shaft 12 turns, feed gearwheel 15 can turn also and can not turn.Feed gearwheel 15 is provided with notch 15-1; Feed handwheel 9 is slidably arranged in the top of main drive shaft 12 by key, feed handwheel 9 be provided with feed gearwheel 15 on the driver slot 9-1 that agrees with mutually of notch 15-1.Feed small gear 4 be sleeved on variable-speed shaft 8 and and variable-speed shaft 8 between relative movement is arranged, when variable-speed shaft 8 turns, feed small gear 4 can turn also and can not turn.Feed gearwheel 15 is intermeshing with feed small gear 4, and overload separation cover 3 is contained on variable-speed shaft 8 and synchronizes rotation with variable-speed shaft 8 by key.Steel ball 5 is between overload separation cover 3 and feed small gear 4 and with overload separation cover 3 and feed small gear 4, contact simultaneously, is equipped with the hole of installation steel ball 5 on overload separation cover 3 and feed small gear 4.Overload adjusting handle 1 is contained in the top of variable-speed shaft 8, overload clutch spring 2 is between overload adjusting handle 1 and overload separation cover 3 and overlap 3 with overload adjusting handle 1 and overload separation simultaneously and contact, and case 14 covers on feed gearwheel 15 and is connected on feed small gear 4 and with casing 7.During use, when the needs cutter needs feed, need feed handwheel 9 to press, make feed driveshaft 10 move downward, be connected with the feed gear on cutter, thereby realize the feed of cutter.During withdrawing, only feed handwheel 9 need be put on, make feed driveshaft 10 and the feed gear on cutter be separated, can realize withdrawing.When normal feed, feed handwheel 9 is pressed, and feed driveshaft 10 and feed handwheel 9, feed gearwheel 15 rotate, and feed gearwheel 15 rotates and drives 4 rotations of feed small gear; Overload clutch spring 2 is pressed in overload separation cover 3, steel ball 5 and feed small gear 4; Feed small gear 4 rotates and drives 3 rotations of overload separation cover.When the depth of cut is large, i.e., during feed overload, feed driveshaft 10 does not turn, feed handwheel 9 does not turn, due to feed handwheel 9 and feed gearwheel 15 engaging and the rotation of synchronizeing mutually, so not turning, feed handwheel 9 do not make feed gearwheel 15 not turn yet, feed gearwheel 15 does not turn drive feed small gear 4 and does not turn.Because variable-speed shaft 8 rotates, driving overload separation cover 3 rotates, overload clutch spring 2 is pressed in overload separation cover 3, steel ball 5 and feed small gear 4, now, because overload separation cover 3 rotates, feed small gear 4 does not turn, make steel ball 5 that overload clutch spring 2 is upwards pushed up, overload clutch spring 2 is in pressured state; Now reached the effect of eliminating overload.After overload is eliminated, while carrying out normal feed, feed driveshaft 10 and feed handwheel 9, feed gearwheel 15 start to rotate; Overload clutch spring 2 will recover normally, and by overload separation cover 3, to pressing down, now feed gearwheel 15 and feed small gear 4 start to rotate.Return to normal feed state.
For the ease of the carrying of this variable-speed feeding speed case, the utility model also comprises the lifting handle 21 that is arranged on casing 75 both sides.
The utility model does not relate to partly all same as the prior art or employing prior aries to be realized.
Claims (6)
1. a variable-speed feeding speed case, it is characterized in that, comprise main drive shaft (12), casing (7), high gear (17), low speed gear (18), variable-speed shaft (8), speed change gear (6), shift fork (20), declutch shift shaft (19), shift fork gear shaft (24) and the drive unit that drives main drive shaft (12) to rotate; Drive unit is contained on casing (7), main drive shaft (12) is connected with drive unit, it is upper and synchronize rotation with main drive shaft (12) that high gear (17) and low speed gear (18) all are contained in main drive shaft (12), variable-speed shaft (8) rotates and is arranged on casing (7), speed change gear (6) is slidably mounted on variable-speed shaft (8) above and synchronizes rotation with variable-speed shaft (8), declutch shift shaft (19) is contained on casing (7), shift fork (20) is slidably arranged in declutch shift shaft (19) and is connected with speed change gear (6), and described shift fork (20) is provided with tooth bar (20-1); The shift fork gear (24-1) of shift fork gear shaft (24) one ends is meshed with shift fork (20) upper rack (20-1), and shift fork gear shaft (24) the other end extend into the outside of casing (7).
2. variable-speed feeding speed case as claimed in claim 1, it is characterized in that, described drive unit comprises motor (31), worm screw (27) and worm gear (28), motor (31) is fixed on casing (7), the input end of worm screw (27) is connected with the output terminal of motor (31), worm gear (28) is meshed with worm screw (27) and is positioned at casing (7), described worm gear (28) is provided with central shaft hole, main drive shaft (12) is arranged in the central shaft hole of worm gear (28), and main drive shaft (12) is synchronizeed rotation with worm gear (28).
3. variable-speed feeding speed case as claimed in claim 1, it is characterized in that, also comprise the feed overload protection arrangement, described feed overload protection arrangement comprises feed driveshaft (10), feed gearwheel (15), feed small gear (4), overload separation cover (3), overload clutch spring (2), overload adjusting handle (1), steel ball (5) and case (14), feed driveshaft (10) is contained in main drive shaft (12), feed gearwheel (15) is contained on main drive shaft (12), feed small gear (4) is contained on variable-speed shaft (8), feed gearwheel (15) is intermeshing with feed small gear (4), overload separation cover (3) is contained in variable-speed shaft (8) above and synchronizes rotation with variable-speed shaft (8), steel ball (5) is positioned between overload separation cover (3) and feed small gear (4) and contacts with overload separation cover (3) and feed small gear (4) simultaneously, overload adjusting handle (1) is contained in the top of variable-speed shaft (8), overload clutch spring (2) be positioned between overload adjusting handle (1) and overload separation cover (3) and simultaneously with transship adjusting handle (1) and overload separation cover (3) and contact, case (14) covers on feed gearwheel (15) and goes up and be connected with casing (7) with feed small gear (4), described feed gearwheel (15) is provided with notch (15-1).
4. variable-speed feeding speed case as claimed in claim 3, it is characterized in that, also comprise feed handwheel (9), described feed handwheel (9) is slidably arranged in the top of main drive shaft (12), feed handwheel (9) be provided with feed gearwheel (15) on the driver slot (9-1) that agrees with mutually of notch (15-1).
5. variable-speed feeding speed case as claimed in claim 1, is characterized in that, described variable-speed shaft (8) is gone up and the contacted end section of speed change gear (6) is splined shaft.
6. variable-speed feeding speed case as claimed in claim 1, is characterized in that, also comprises the lifting handle (21) that is arranged on casing (7) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330283.7U CN203374740U (en) | 2013-06-07 | 2013-06-07 | Variable-speed feeding box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330283.7U CN203374740U (en) | 2013-06-07 | 2013-06-07 | Variable-speed feeding box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374740U true CN203374740U (en) | 2014-01-01 |
Family
ID=49837269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320330283.7U Withdrawn - After Issue CN203374740U (en) | 2013-06-07 | 2013-06-07 | Variable-speed feeding box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291855A (en) * | 2013-06-07 | 2013-09-11 | 南京唯高机械制造有限公司 | Speed change feeding box |
-
2013
- 2013-06-07 CN CN201320330283.7U patent/CN203374740U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291855A (en) * | 2013-06-07 | 2013-09-11 | 南京唯高机械制造有限公司 | Speed change feeding box |
| CN103291855B (en) * | 2013-06-07 | 2015-07-08 | 南京唯高机械制造有限公司 | Speed change feeding box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140101 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |