CN103307155B - Thrust type braking load-limiting coupler - Google Patents
Thrust type braking load-limiting coupler Download PDFInfo
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- CN103307155B CN103307155B CN201210070677.3A CN201210070677A CN103307155B CN 103307155 B CN103307155 B CN 103307155B CN 201210070677 A CN201210070677 A CN 201210070677A CN 103307155 B CN103307155 B CN 103307155B
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- afterburning
- ring
- lever
- coupling
- bearing
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Abstract
The present invention relates to a kind of thrust type braking load-limiting coupler, comprise upper end cap assembly parts, spring seat, shaft block ring, bearing, hole back-up ring, initiatively coupling, large support, afterburning lever combination part, lever afterburning ring, plane bearing, brake hoop, friction disc support assembly parts and lower end cap assembly parts.It is characterized in that: upper end cap assembly parts, spring seat, shaft block ring, bearing, hole back-up ring, initiatively coupling, large support, afterburning lever combination part, lever afterburning ring, plane bearing, brake hoop, friction disc support assembly parts and lower end cap assembly parts are along large support direction of axis line coupled in series successively.Rely on initiatively coupling and the driven engagement of coupling profile of tooth and the pressure of brake spring, carry out transmission; When initiatively coupling is separated with driven coupling screw serrated form, overload protection machine; During shutdown, spring seat promotes afterburning lever combination part and pressurizes to friction disc support assembly, forms the braking moment increased, and realizes braking.
Description
Technical field
The present invention relates to a kind of thrust type braking load-limiting coupler.
Background technique
Existing braking load-limiting coupler has the function of coupling, load limiter and break; the driven off by shaft effect of connection can be reached; when machine can protect machine when overloading; also can brake because of the stopping of machine at once; but braking moment is little; and operationally power loss is very large, and therefore existing braking load-limiting coupler can not adapt to the working environment requiring very large braking moment and high mechanical efficiency.
Summary of the invention
Object of the present invention: design a kind of existing shaft coupling and limit for tonnage function, has again very large braking moment, and the braking load-limiting coupler that machinery driving efficiency is high makes up the deficiency of existing braking load-limiting coupler.
The technical solution adopted for the present invention to solve the technical problems is:
Afterburning lever is assemblied on large support by pivot pin, two miniature bearings are assemblied in the power end of afterburning lever with on afterburning end respectively by two bearing pivot pins, spring seat is by shaft block ring A, rolling bearing and hole back-up ring are positioned on active coupling, branched brake spring becomes to be arranged in parallel, one end pressing spring seat, the other end withstands afterburning pivot pin, the afterburning miniature bearing held of afterburning lever is directly pressed on the afterburning ring of lever along the direction of axis line of large support, plane bearing one is positioned on the afterburning ring of lever with cylindrical, the endoporus of plane bearing one becomes transition fit to connect with brake hoop, brake hoop and friction plate end face are fitted.
Upper end cap assembly parts, spring seat, shaft block ring, bearing, hole back-up ring, initiatively coupling, large support, afterburning lever combination part, lever afterburning ring, plane bearing, brake hoop, friction disc support assembly parts and lower end cap assembly parts are along direction of axis line successively coupled in series.
Locking nut is fixed on upper end cap by locked spacer, afterburning ring is close to locked spacer, as the fulcrum force of afterburning pivot pin, the energy band flexible spring seat stored during brake spring compression moves to friction disc support direction vertically, the conical surface on spring seat promotes the miniature bearing be arranged on afterburning lever, make lever reinforcing press lever afterburning ring and pressure is passed to friction disc support assembly and driven coupling brake disc by plane bearing and brake hoop, produce large braking moment.
Driven coupling is the coupling be fixed on driven shaft, initiatively coupling is arranged on driving shaft by spline and (refers generally to motor shaft), friction disc support is stuck on large support, there is a certain amount of displacement vertically, angular displacement can not be produced, the mode that friction disc support two sides is connected by gummed is glued to friction disc support two sides, is arranged on vertically between brake hoop and driven coupling brake disc.
Initiatively coupling and driven coupling realize the transmission of moment of torsion because helical tooth flank engagement adds the axial pressure effect of Compress Spring, reach the function of shaft coupling.During overload, break axial equilibrium of forces, press equilibrium of forces in order to reach with brake spring; initiatively coupling only has and moves to the back-end vertically; band flexible spring seat compression brake spring, until initiatively coupling and driven coupling profile of tooth are thrown off completely, plays the effect of overload protection working machine.When active coupling runs out of steam, the energy stored when brake spring is compressed discharges immediately, while promoting lever afterburning ring, plane bearing, brake hoop and friction plate assembly generation friction by the braking conical surface of spring seat, friction plate assembly and driven coupling brake disc produce and rub, due to lever reinforcing effect, form the braking moment increasing many times, achieve the object of braking.
Upper end cap or lower end cap adopt and are bolted in the frame of working machine, upper end cap and lower end cap adopt Bolt Connection large support two ends.
Sliding bearing sleeve cylindrical adopts the mode of interference fit to connect with upper end cap endoporus, branched afterburning pivot pin distributes equably and is inserted in upper end cap axis hole, and become slip cooperating relationship, often prop up and forcing shaft puts respectively an identical brake spring, afterburning ring withstands branched forcing shaft, spring adjusting nut is spun in upper end cap screw thread, after having regulated, and locking with locked spacer locking.
Lever is fixed on large support by lever pivot pin.
Spring seat there is a place promote the braking conical surface of lever.
Lever reinforcing utilizes the conical surface of spring seat to promote lever to push down the afterburning ring of lever along the swing of lever pivot pin, and move to friction plate assembly parts direction vertically, successively power is passed to plane bearing, brake hoop, friction plate, friction disc support, friction plate and driven coupling brake disc, afterburning size is relevant with lever ratio.
The invention has the beneficial effects as follows; not only possesses the function of coupling; there is again the function of break and load limiter simultaneously, serve when shutdown is braked immediately and transships and protect working machine effect, and many times increase braking moment and improve machinery driving efficiency effect.
Below in conjunction with Figure of description, the utility model is described in detail.
Accompanying drawing explanation
Accompanying drawing 1: thrust type braking load-limiting coupler appearance schematic diagram.
Accompanying drawing 2: thrust type braking load-limiting coupler overall structure figure.
Accompanying drawing 3: brake hoop and active coupling assembly relation schematic diagram in thrust type braking load-limiting coupler.
Accompanying drawing 4: the thrust type braking large support of load-limiting coupler and afterburning lever combination part schematic diagram.
Accompanying drawing 5: friction disc support assembly parts schematic diagram.
Accompanying drawing 6: thrust type braking load-limiting coupler upper end cap assembly parts.
Accompanying drawing 7: thrust type braking load-limiting coupler lower end cap assembly parts.
Accompanying drawing 8: the afterburning lever combination part of thrust type braking load-limiting coupler.
Accompanying drawing 9: spring seat structure schematic diagram.
Accompanying drawing 10: thrust type braking load-limiting coupler brake hoop, friction plate and driven coupling position relationship schematic diagram when parking brake state.
Accompanying drawing 11: thrust type braking load-limiting coupler brake hoop, friction plate and driven coupling position relationship schematic diagram when starting and working state.
Accompanying drawing 12: in thrust type braking load-limiting coupler, brake hoop is intended to relative position relation when initiatively coupling works.
Accompanying drawing 13: in thrust type braking load-limiting coupler, when brake hoop and active coupling parking brake, relative position relation is intended to.
In accompanying drawing: 1-lower end cap, 2-bolt A, 3-spring washer B, the large support of 4-, 5-lever pivot pin, the afterburning lever of 6-, 7-miniature bearing, 8-bearing pivot pin, 9-bolt B, 10-spring washer B, the afterburning ring of 11-, 12-spring adjusting nut, 13-upper end cap, 14-is coupling initiatively, 15-shaft block ring, 16-bearing, 17-sliding bearing sleeve, 18-spring seat, 19-locked spacer, the afterburning pivot pin of 20-, 21-circlip for hole, 22-brake spring, the afterburning ring of 23-lever, 24-plane bearing one, 25-brake hoop, 26-friction disc support, 27-friction plate, the driven coupling of 28-, 29-plane bearing two, 30-rolling bearing, 31-shaft block ring.
Embodiment
Shown in Figure of description 2: upper end cap 13 is fixed on large support 4 by bolt B 9 and spring pad B10, and lower end cap 1 is fixed on large support 4 by bolt A2 and spring pad A3.
Shown in Figure of description 2 and Figure of description 6: sliding bearing sleeve 17 and upper end cap 13 adopt the mode of interference fit to connect, branched afterburning pivot pin 20 is through on the supporting hole of upper end cap 13, and the connecting mode becoming to be slidably matched, afterburning ring 11 is enclosed within upper end cap 13, and withstand on branched afterburning pivot pin 20, spring adjusting nut 12 regulates axial position, after mixing up along the outside thread on upper end cap 13, and lock with locked spacer 19, prevent angular displacement and axial displacement.
Shown in Figure of description 2: spring seat 18 is positioned on active coupling 14 by shaft block ring A15, rolling bearing 16 and hole back-up ring 21, and branched brake spring 22 one-tenth is arranged in parallel, one end pressing spring seat 18, and the other end withstands afterburning pivot pin 20.
Shown in Figure of description 2, accompanying drawing 4 and accompanying drawing 8: afterburning lever combination part is positioned on large support 4 by pivot pin 5.
Shown in Figure of description 2 and Figure of description 8: two miniature bearings 7 are assemblied in the power end of afterburning lever 6 with on afterburning end by two bearing pivot pins 8.
Shown in Figure of description 2: the miniature bearing 7 being arranged on the reinforcing end of afterburning lever 6 is directly pressed on the afterburning ring 23 of lever along the direction of axis line of large support 4, plane bearing 1 is positioned on the afterburning ring 23 of lever with cylindrical, the endoporus of plane bearing 1 connects with brake hoop 25 one-tenth transition fit, and brake hoop 25 and friction plate 27 end face are fitted.
Shown in Figure of description 2 and Figure of description 5: the connecting of two panels friction disc support 26 and two panels friction plate 27 adopt adhesive to bond and form.
Shown in Figure of description 2 and Figure of description 7: driven coupling 28 is positioned on lower end cap 1 by plane bearing 2 29, rolling bearing 30 and shaft block ring B 31, the brake disc on driven coupling 28 and friction plate 27 directly contact to produce and rub.
Shown in Figure of description 2 and Figure of description 3: initiatively coupling 14 and brake hoop 25 adopt spline slide to coordinate connection.
Shown in Figure of description 2 and Figure of description 9: on spring seat 18, A place promotes the braking conical surface of lever.
Shown in Figure of description 10: B place is in braking state for driven coupling brake disc and friction plate, C place is in braking state for brake hoop and friction plate.
Shown in Figure of description 11: D place is in disengaged condition for driven coupling brake disc and friction plate, E place is in disengaged condition for brake hoop and friction plate.
Shown in Figure of description 12 and Figure of description 13: in thrust type braking load-limiting coupler brake hoop 25 when working with active coupling 14 relative position relation and brake hoop 25 and the difference of relative position relation during active coupling 14 parking brake be the latter size S more than the former; the former S is zero, has namely assembled initiatively coupling relative brake ring and has also had a displacement amount backward vertically.
The working procedure of this thrust type braking load-limiting coupler: power source inputs from active coupling 14 splined hole, the pressure adding brake spring 22 is engaged by the helical tooth flank of active coupling 14 and the helical tooth flank of driven coupling 28, initiatively after coupling 14 input torque, active coupling 14 shaft axis produces the end thrust that is pointed to power source direction, make initiatively coupling 14 produce axial displacement compression brake spring 22 and reach the balance with spring pressure, at this moment initiatively coupling 14 drives brake hoop 25, the afterburning ring 23 of plane bearing 1 and lever oppositely promotes branched afterburning lever 6 and moves along the braking conical surface of spring seat 18, lay down the braking force adding and be pressed on friction plate 27 simultaneously, brake off, play effect of coupling, carry out transmission, when working machine transships, initiatively on coupling 14, axial force in the axial direction also increases thereupon, initiatively coupling 14 must produce displacement in the axial direction, further compression brake spring 22, pushes away equilibrium of forces in order to reach with brake spring 22, until initiatively the helical tooth flank of coupling 14 and the spirality flank of tooth of driven coupling 28 are thrown off completely, now coupling is in the state of skidding, no longer transmission, protects Work machine, achieves limit for tonnage protection, power source removes, torque disappears, state before the pressure of the brake spring 22 be axially subject at active coupling 14 also resets into shutdown thereupon, the energy that now brake spring 22 is saved discharges immediately, promote initiatively coupling 14 to move to driven coupling 28 direction, drive spring seat 18 synchronizing moving be positioned on active coupling 14, the braking conical surface on spring seat 18 promotes the miniature bearing 7 be arranged on afterburning lever 6, drive afterburning lever 6 to be pressurizeed by another miniature bearing 7 and pass to plane bearing 1 successively to the afterburning ring 23 of lever, brake hoop 25, friction plate 27, friction disc support 26, brake disc on friction plate 27 and driven coupling 28, the brake disc of brake hoop 25 and driven coupling 28 is combined with friction plate 27 respectively, produce friction, form the braking moment increased, realize braking.
Thrust type braking load-limiting coupler is reasonable in design, and compact structure is reliably sensitive, can be widely used in multiclass mechanical transmission coupling.
Claims (3)
1. a thrust type braking load-limiting coupler, it is characterized in that: afterburning lever (6) is assemblied on large support (4) by pivot pin (5), two miniature bearings (7) are assemblied in the power end of afterburning lever (6) with on afterburning end respectively by two bearing pivot pins (8), spring seat (18) is by shaft block ring A (15), rolling bearing (16) and hole back-up ring (21) are positioned in active coupling (14), branched brake spring (22) becomes to be arranged in parallel, one end pressing spring seat (18), the other end withstands afterburning pivot pin (20), the afterburning miniature bearing (7) held of afterburning lever (6) is directly pressed on the afterburning ring (23) of lever along the direction of axis line of large support (4), plane bearing one (24) is positioned on the afterburning ring (23) of lever with cylindrical, the endoporus of plane bearing one (24) becomes transition fit to connect with brake hoop (25), brake hoop (25) and friction plate (27) end face are fitted, upper end cap assembly parts, spring seat (18), shaft block ring (31), bearing (16), hole is with back-up ring (21), initiatively coupling (14), large support (4), afterburning lever combination part, the afterburning ring (11) of lever, plane bearing, brake hoop (25), friction disc support assembly parts and lower end cap assembly parts are along direction of axis line successively coupled in series.
2. thrust type braking load-limiting coupler according to claim 1, it is characterized in that: initiatively coupling (14) and brake hoop (25) adopt spline slide to coordinate connection, and initiatively coupling (14) relative brake ring (25) also has a displacement amount backward vertically.
3. thrust type braking load-limiting coupler according to claim 1, is characterized in that: spring seat (18) has a place promote the braking conical surface of lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210070677.3A CN103307155B (en) | 2012-03-15 | 2012-03-15 | Thrust type braking load-limiting coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210070677.3A CN103307155B (en) | 2012-03-15 | 2012-03-15 | Thrust type braking load-limiting coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103307155A CN103307155A (en) | 2013-09-18 |
| CN103307155B true CN103307155B (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210070677.3A Expired - Fee Related CN103307155B (en) | 2012-03-15 | 2012-03-15 | Thrust type braking load-limiting coupler |
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| Country | Link |
|---|---|
| CN (1) | CN103307155B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001031219A1 (en) * | 1999-10-29 | 2001-05-03 | Curt Falk Ab | A torque-limiting coupling device |
| GB2370077A (en) * | 1997-08-01 | 2002-06-19 | British Autogard | Torque limiting clutch with manual disengagement means |
| CN1948777A (en) * | 2005-10-11 | 2007-04-18 | 小仓离合器有限公司 | Power transmission device |
| CN201050558Y (en) * | 2006-12-05 | 2008-04-23 | 湖北省咸宁三合机电制业有限责任公司 | Braking and load-limiting coupler |
| CN101813146A (en) * | 2009-02-20 | 2010-08-25 | 湖北省咸宁三合机电制业有限责任公司 | Coupling braking load limiter |
| CN202560898U (en) * | 2012-03-15 | 2012-11-28 | 湖北省咸宁三合机电制业有限责任公司 | Boosting type braking load-limiting coupling |
-
2012
- 2012-03-15 CN CN201210070677.3A patent/CN103307155B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2370077A (en) * | 1997-08-01 | 2002-06-19 | British Autogard | Torque limiting clutch with manual disengagement means |
| WO2001031219A1 (en) * | 1999-10-29 | 2001-05-03 | Curt Falk Ab | A torque-limiting coupling device |
| CN1948777A (en) * | 2005-10-11 | 2007-04-18 | 小仓离合器有限公司 | Power transmission device |
| CN201050558Y (en) * | 2006-12-05 | 2008-04-23 | 湖北省咸宁三合机电制业有限责任公司 | Braking and load-limiting coupler |
| CN101813146A (en) * | 2009-02-20 | 2010-08-25 | 湖北省咸宁三合机电制业有限责任公司 | Coupling braking load limiter |
| CN202560898U (en) * | 2012-03-15 | 2012-11-28 | 湖北省咸宁三合机电制业有限责任公司 | Boosting type braking load-limiting coupling |
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| Publication number | Publication date |
|---|---|
| CN103307155A (en) | 2013-09-18 |
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Granted publication date: 20151021 Termination date: 20170315 |
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| CF01 | Termination of patent right due to non-payment of annual fee |