CN104225976B - Lifting device buffer - Google Patents
Lifting device buffer Download PDFInfo
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- CN104225976B CN104225976B CN201410538762.7A CN201410538762A CN104225976B CN 104225976 B CN104225976 B CN 104225976B CN 201410538762 A CN201410538762 A CN 201410538762A CN 104225976 B CN104225976 B CN 104225976B
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- connecting rod
- nut
- nut seat
- bolt
- worm gear
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Abstract
The invention discloses a kind of lifting device buffer, solving existing apparatus can make the lift-bolt of lift impaired, reduce the problem in service life, it is characterized in that comprising connecting rod I, nut seat, trip bolt, nut, connection cover plate, connecting bolt, connecting rod II, described connecting rod I threaded coupling nut seat is also welded and fixed, nut is connected with connecting rod II and is located by trip bolt, and nut slides axially in certain distance in nut seat; Connection cover sleeve-board is contained on connecting rod II, and is linked together by connecting bolt and nut seat.The present invention is after harrow frame drops to lowest order; the nut be installed together with connecting rod II can slide in nut seat; and have the slip surplus of tens millimeters; effectively protect screw rod in lift and accurately can not locate bring additionally stressed; avoid the damage of screw rod; make worm gear screw elevator at minimum operating duty, extend the service life of worm gear screw elevator.
Description
Technical field
The present invention relates to a kind of buffer unit, relate to a kind of buffer of central transmission concentrator lifting device or rather.
Background technology
Thickener, in the process of material handling, can make the workload size of thickener change along with the discharge speed of the fluctuation or bottoms material that enter inventory in concentration basin.When the change of load is excessive, reach thickener carry rake load setpoint time, automatic rake-lifting device by work, make harrow frame promote to reduce load; When load drops to rake load setpoint, harrow frame is then landed, until drop to lowest order.For the lifting device having installed worm gear screw elevator, because lifting arm is rigidly connected, driving is that the Mechanical Driven of motor reducer has certain inertia, and needing can not hard stop when shutting down, and limiting position can not ensure; And screw rod can not be in free state and make screw thread always stressed, the lift-bolt of lift will be made so impaired, reduce service life.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and provide a kind of lifting device buffer, after harrow frame drops to lowest order, make screw rod be in not by the state of external force, protection screw rod is injury-free.
The invention is characterized in: comprise connecting rod I, nut seat, trip bolt, nut, connection cover plate, connecting bolt, connecting rod II, described connecting rod I threaded coupling nut seat is also welded and fixed, nut is connected with connecting rod II and is located by trip bolt, and nut slides axially in certain distance in nut seat; Connection cover sleeve-board is contained on connecting rod II, and is linked together by connecting bolt and nut seat.
Described connecting rod I is connected with the upgrade block be arranged on transmission-case cover with pin shaft II by coupling hook II, and connecting rod II is connected with the screw rod of bearing pin I with worm gear screw elevator by coupling hook I.
As shown from the above technical solution; beneficial effect of the present invention is: after harrow frame drops to lowest order; the nut be installed together with connecting rod II can slide in nut seat; and have the slip surplus of tens millimeters; effectively protect screw rod in lift and accurately can not locate bring additionally stressed; avoid the damage of screw rod, make worm gear screw elevator at minimum operating duty, extend the service life of worm gear screw elevator.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is application schematic diagram of the present invention.
In figure, 1, connecting rod I; 2, nut seat; 3, trip bolt; 4, nut; 5, cover plate is connected; 6, connecting bolt; 7, connecting rod II; 8, coupling hook I; 9, bearing pin I; 10, worm gear screw elevator; 11, shaft coupling; 12, power transmission shaft; 13, motor reducer; 14, worm gear screw elevator; 15, brace summer 16, coupling hook II; 17, pin shaft II; 18, upgrade block; 19, transmission-case cover, 20, screw rod;
In Fig. 3, I is the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, 2, the present invention includes connecting rod I 1, nut seat 2, trip bolt 3, nut 4, connect cover plate 5, connecting bolt 6, connecting rod II 7 etc.Described connecting rod I 1 threaded coupling nut seat 2 is also welded and fixed integral.Described nut 4 is circular, and side has hole, places trip bolt 3; Nut 4 is connected with connecting rod II 7 and is located by trip bolt 3.Nut 4 slides axially in certain distance in nut seat 2, and general 30-60mm, plays cushioning effect.Connect cover plate 5 to be sleeved on connecting rod II 7, and linked together by connecting bolt 6 and nut seat 2.
As shown in Figure 3, described connecting rod I 1 is connected with the upgrade block 18 be arranged on transmission-case cover 19 with pin shaft II 17 by coupling hook II 16, connecting rod II 7 is connected with the screw rod 20 of worm gear screw elevator with bearing pin I 9 by coupling hook I 8, by the present invention, worm gear screw elevator 10,14 and transmission-case cover 19 is linked together.
Operation principle:
Motor reducer 13 is fixed on brace summer 15 after being assembled with worm gear screw elevator 10,14 by power transmission shaft 12 and shaft coupling 11.
When the workload of harrow frame exceed carry rake load setpoint time, the motor of motor reducer 13 rotates forward, and drives the screw rod 20 of worm gear screw elevator 10,14 to rise, thus drives transmission-case cover 19 to promote.When transmission-case cover 19 promotes, drive harrow frame to promote, the movable surface making transmission device spacing has departed from fixing contact surface and has promoted.
When the workload of harrow frame is lower than when falling rake load setpoint, the motor reversal of motor reducer 13, drives the screw rod 20 of worm gear screw elevator 10,14 to decline, and drives transmission-case cover 19 to decline.Even if the movable surface that transmission device is spacing when harrow frame drops to lowest order contacts with fixing contact surface, the motor power-off of motor reducer 13, has installed the present invention additional and can prevent continuing to move down and causing the screw thread of screw rod 20 stressed and damage of screw rod 20.
The foregoing is only the specific embodiment of the present invention, be anyly familiar with those skilled in the art in the technical scope that the present invention discloses, change can be expected easily or replace, all should be encompassed within protection scope of the present invention.
Claims (2)
1. a lifting device buffer, it is characterized in that: comprise connecting rod I (1), nut seat (2), trip bolt (3), nut (4), connect cover plate (5), connecting bolt (6), connecting rod II (7), described connecting rod I (1) threaded coupling nut seat (2) is also welded and fixed, nut (4) is connected with connecting rod II (7) and passes through trip bolt (3) locates, and nut (4) slides axially in certain distance in nut seat (2); Connect cover plate (5) to be sleeved on connecting rod II (7), and linked together by connecting bolt (6) and nut seat (2).
2. a kind of lifting device buffer as claimed in claim 1, it is characterized in that: described connecting rod I (1) is connected with the upgrade block (18) be arranged on transmission-case cover (19) with pin shaft II (17) by coupling hook II (16), connecting rod II (7) is connected with the screw rod (20) of worm gear screw elevator I (10) with bearing pin I (9) by coupling hook I (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410538762.7A CN104225976B (en) | 2014-10-14 | 2014-10-14 | Lifting device buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410538762.7A CN104225976B (en) | 2014-10-14 | 2014-10-14 | Lifting device buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104225976A CN104225976A (en) | 2014-12-24 |
| CN104225976B true CN104225976B (en) | 2015-10-28 |
Family
ID=52215415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410538762.7A Active CN104225976B (en) | 2014-10-14 | 2014-10-14 | Lifting device buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104225976B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053623U (en) * | 1989-07-07 | 1990-02-28 | 钟太中 | Automatic safety device of elevator |
| JPH0985618A (en) * | 1995-09-28 | 1997-03-31 | Makita Corp | Rotor mounting structure for motor-driven tool |
| CN1958368A (en) * | 2006-09-29 | 2007-05-09 | 左德建 | Passive automatic method and equipment for guarding against slide of rail vehicles |
| CN101380931A (en) * | 2008-10-13 | 2009-03-11 | 锦州锦恒汽车安全系统有限公司 | Gas compression quick-release system |
| CN201952166U (en) * | 2010-11-24 | 2011-08-31 | 成都焊研威达科技股份有限公司 | Lifting device for lifting positioner |
| CN202036836U (en) * | 2011-01-18 | 2011-11-16 | 江苏通环环保设备有限公司 | Automatic lifting device for scraper |
| CN202493696U (en) * | 2011-12-31 | 2012-10-17 | 浙江盾安禾田金属有限公司 | Improved structure of nut seat of electronic expansion valve |
| CN204107111U (en) * | 2014-10-14 | 2015-01-21 | 淮北市一环矿山机械有限公司 | Lifting device buffer |
-
2014
- 2014-10-14 CN CN201410538762.7A patent/CN104225976B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053623U (en) * | 1989-07-07 | 1990-02-28 | 钟太中 | Automatic safety device of elevator |
| JPH0985618A (en) * | 1995-09-28 | 1997-03-31 | Makita Corp | Rotor mounting structure for motor-driven tool |
| CN1958368A (en) * | 2006-09-29 | 2007-05-09 | 左德建 | Passive automatic method and equipment for guarding against slide of rail vehicles |
| CN101380931A (en) * | 2008-10-13 | 2009-03-11 | 锦州锦恒汽车安全系统有限公司 | Gas compression quick-release system |
| CN201952166U (en) * | 2010-11-24 | 2011-08-31 | 成都焊研威达科技股份有限公司 | Lifting device for lifting positioner |
| CN202036836U (en) * | 2011-01-18 | 2011-11-16 | 江苏通环环保设备有限公司 | Automatic lifting device for scraper |
| CN202493696U (en) * | 2011-12-31 | 2012-10-17 | 浙江盾安禾田金属有限公司 | Improved structure of nut seat of electronic expansion valve |
| CN204107111U (en) * | 2014-10-14 | 2015-01-21 | 淮北市一环矿山机械有限公司 | Lifting device buffer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104225976A (en) | 2014-12-24 |
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