CN202028443U - Mill transmission device adopting variable speed start-up - Google Patents
Mill transmission device adopting variable speed start-up Download PDFInfo
- Publication number
- CN202028443U CN202028443U CN2011200685123U CN201120068512U CN202028443U CN 202028443 U CN202028443 U CN 202028443U CN 2011200685123 U CN2011200685123 U CN 2011200685123U CN 201120068512 U CN201120068512 U CN 201120068512U CN 202028443 U CN202028443 U CN 202028443U
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- CN
- China
- Prior art keywords
- gear
- big
- shift fork
- mill
- duplicate gear
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a mill transmission device adopting variable speed start-up. A motor is in transmission connection with a pinion shaft of the mill through a small coupler, a gearbox and a big coupler. The gearbox is provided with a high speed shaft and a low speed shaft which are parallel to each other, a small duplicate gear and a small gear are connected with positioning keys of the high speed shaft, and a big duplicate gear and a big gear are slidingly connected with splines of the low speed shaft. A first shifting fork slidingly inserted into a groove of the big duplicate gear can drive the big duplicate gear and the small duplicate gear to be meshed or separated, and a second shifting fork slidingly sleeved in the big gear can drive the big gear and the small gear to be meshed or separated. A blocking mechanism is arranged between the first shifting fork and the second shifting fork. The mill transmission device is started through a low gear so that torque of starting the mill is increased, start-up current of the motor is greatly reduced, impact on a power grid is avoided, a motor using a big horse to pull a small cart is not chosen, and equipment investment and electrical load are reduced. In addition, when the low gear is used, rotate speed of the mill is very low, thereby bringing convenience to a device for randomly stopping at required places during maintenance.
Description
Technical field
The utility model relates to a kind of transmission device, the mill driving device that particularly a kind of employing speed change that is used for building materials, mine industry starts.
Background technology
Be used for building materials, mine industry the grinding machine sole mass bigger, rotating mass was bigger after the grinding machine inner chamber loaded stone and iron ball.In order to start smoothly, usually select the much bigger motor of power demand when moving for use than average rate, increase equipment investment and power load, and exceeded several times during the operation of electric motor starting current ratio average rate, can form electrical network and impact.
The utility model content
The purpose of this utility model provides a kind of mill driving device that adopts the speed change startup, adopts bottom gear during startup, treats to change to after mill speed progressively improves the operation retaining again, can reduce the electric motor starting electric current, avoids electrical network is formed impact.
The technical solution of the utility model is: a kind of mill driving device that adopts speed change to start comprises that motor is in transmission connection by the pinion shaft of little shaft coupling, gearbox, big shaft coupling and grinding machine; Described gearbox is provided with high speed shaft and the slow-speed shaft that is parallel to each other, and little duplicate gear and pinion are connected with the high speed shaft positioning key, and big duplicate gear and gear wheel and slow-speed shaft spline are slidingly connected; First shift fork that slide to insert big duplicate gear groove can stir big duplicate gear with little duplicate gear engagement or separate, second shift fork that slip cap is plugged in gear wheel can stir gear wheel with pinion or separate.Be provided with blocking mechanism between first shift fork and second shift fork.Described blocking mechanism is the latch-down baffle that is hingedly mounted between first shift fork and second shift fork, the one side of latch-down baffle is provided with first block of location first shift fork in the gear separation point position, and the another side of latch-down baffle is provided with second block of location second shift fork in the gear separation point position.
The beneficial effects of the utility model are:
1, the moment of torsion that adopts bottom gear to start to increase the starting grinding machine, reduce the starting current of motor widely, avoid electrical network formation impact and select the motor of low load with strong power for use, reduced equipment investment and power load;
When 2, adopting bottom gear, the rotating speed of grinding machine is very low, can arbitrarily be parked in needed position when being convenient to overhaul of the equipments.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of gearbox.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1 is as shown in Figures 1 and 2: a kind of mill driving device that adopts speed change to start comprises that motor 1 is in transmission connection with the pinion shaft 5 of grinding machine by little shaft coupling 2, gearbox 3, big shaft coupling 4.Gearbox 3 is provided with high speed shaft 6 and the slow-speed shaft 9 that is parallel to each other, and little duplicate gear 7 and pinion 8 are connected with high speed shaft 6 positioning keys, and big duplicate gear 10 and gear wheel 13 are slidingly connected with slow-speed shaft 9 splines; First shift fork 11 that slide to insert the groove of big duplicate gear 10 can stir big duplicate gear 10 with little duplicate gear 7 engagements or separate, second shift fork 12 that slip cap is plugged in gear wheel 13 can stir gear wheel 13 with pinion 8 engagements or separate.
Be provided with blocking mechanism between first shift fork 11 and second shift fork 12, described blocking mechanism is the latch-down baffle 14 that is hingedly mounted between first shift fork 11 and second shift fork 12, the one side of latch-down baffle 14 is provided with first block 15 of location first shift fork 11 in the gear separation point position, and the another side of latch-down baffle 14 is provided with second block 16 of location second shift fork 12 in the gear separation point position.
When grinding machine started, latch-down baffle 14 was placed on position shown in Figure 2, and second block, 16 location, second shift fork 12 is in the position of gear separation; Handle first shift fork 11, make the steamboat engagement of the bull wheel and the little duplicate gear 7 of big duplicate gear 10, enter first retaining of gearratio maximum; The moment of torsion of starting grinding machine is also maximum, can reduce the starting current of motor greatly.Treat to handle first shift fork 11 again after mill speed progressively improves, make the bull wheel engagement of the steamboat and the little duplicate gear 7 of big duplicate gear 10, enter the second medium retaining of gearratio.Treat to change first shift fork 11 over to neutral after mill speed further improves, big duplicate gear 10 is separated fully with little duplicate gear 7; With 180 ° of latch-down baffle 14 upsets, first block, 15 location, first shift fork 11 is in the position of gear separation again.Handle second shift fork 12, make gear wheel 13 and pinion 8 engagements, enter the operation retaining of gearratio minimum.
Claims (2)
1. mill driving device that adopts speed change to start, comprise that motor (1) is in transmission connection with the pinion shaft (5) of grinding machine by little shaft coupling (2), gearbox (3), big shaft coupling (4), it is characterized in that: described gearbox (3) is provided with high speed shaft (6) and the slow-speed shaft (9) that is parallel to each other, little duplicate gear (7) and pinion (8) are connected with high speed shaft (6) positioning key, and big duplicate gear (10) and gear wheel (13) are slidingly connected with slow-speed shaft (9) spline; First shift fork (11) that slide to insert big duplicate gear (10) groove can stir big duplicate gear (10) with (7) engagement of little duplicate gear or separate, second shift fork (12) that slip cap is plugged in gear wheel (13) can stir gear wheel (13) and mesh with pinion (8) or separate; Be provided with blocking mechanism between described first shift fork (11) and second shift fork (12).
2. according to the described a kind of mill driving device that adopts speed change to start of claim 1, it is characterized in that: described blocking mechanism is the latch-down baffle (14) that is hingedly mounted between first shift fork (11) and second shift fork (12), the one side of latch-down baffle (14) is provided with first block (15) of location first shift fork (11) in the gear separation point position, and the another side of latch-down baffle (14) is provided with second block (16) of location second shift fork (12) in the gear separation point position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200685123U CN202028443U (en) | 2011-03-16 | 2011-03-16 | Mill transmission device adopting variable speed start-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200685123U CN202028443U (en) | 2011-03-16 | 2011-03-16 | Mill transmission device adopting variable speed start-up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202028443U true CN202028443U (en) | 2011-11-09 |
Family
ID=44890755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200685123U Expired - Fee Related CN202028443U (en) | 2011-03-16 | 2011-03-16 | Mill transmission device adopting variable speed start-up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202028443U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172551A (en) * | 2011-03-16 | 2011-09-07 | 江西稀有金属钨业控股集团有限公司 | Mill transmission device adopting variable-speed starting |
| CN103711893A (en) * | 2014-01-17 | 2014-04-09 | 浙江三拓重工科技有限公司 | Sliding gear locating device |
-
2011
- 2011-03-16 CN CN2011200685123U patent/CN202028443U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172551A (en) * | 2011-03-16 | 2011-09-07 | 江西稀有金属钨业控股集团有限公司 | Mill transmission device adopting variable-speed starting |
| CN103711893A (en) * | 2014-01-17 | 2014-04-09 | 浙江三拓重工科技有限公司 | Sliding gear locating device |
| CN103711893B (en) * | 2014-01-17 | 2016-03-16 | 浙江三拓重工科技有限公司 | Sliding gear positioning device |
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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: 20111109 Termination date: 20160316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |