CN105645297A - Point disc brake - Google Patents
Point disc brake Download PDFInfo
- Publication number
- CN105645297A CN105645297A CN201410691996.5A CN201410691996A CN105645297A CN 105645297 A CN105645297 A CN 105645297A CN 201410691996 A CN201410691996 A CN 201410691996A CN 105645297 A CN105645297 A CN 105645297A
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- Prior art keywords
- handed nut
- handed
- braking
- screw rod
- arm frame
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Abstract
The invention discloses a point disc brake comprising a stand, a left-handed nut, a right-handed nut, a double-handed screw rod, a left jib, a right jib, guide blocks, brake wedges, a friction plate, an electric hydraulic thruster, a swinging tumbler and the like, wherein the lower ends of the left and right jibs are respectively hinged to the left and right sides of the stand; the upper end of the left jib is hinged with the left-handed nut, and the upper end of the right jib is hinged with the right-handed nut; two ends of the double-handed screw rod are respectively screwed in the left-handed nut and the right-handed nut; inclined waist-shaped slotted holes are formed in the brake wedges, are in sliding fit with the guide blocks and are symmetrically distributed in the lower parts of the left and right jibs to form a V shape. One end of the swinging tumbler is fixedly connected with the double-handed screw rod, and the other end of the swinging tumbler is hinged with a push rod of the electric hydraulic thruster. The waist-shaped slotted holes of the two brake wedges form the V shape functioning as a wedge, so that the brake wedges are wedged tighter and tighter, the wedging force is changed along with a load and is balanced with the load, and the braking effect is remarkable; and the point disc brake is compact in structure. During power loss, braking can be automatically and effectively realized in a labor-saving way.
Description
Technical field
The present invention relates to lifting industry technology field, particularly winding type crane gear.
Background technology
At present, the gate opening/closing of water conservancy and hydropower industry, the bridge crane etc. in numerous plant produced workshops, all using winding type crane gear. This winding type crane gear is directly driven decelerator, open gear pair, reel, steel wire rope to carry out lifting heavy by motor; Closed-type gear transmission and the open type gear driving being connected with reel in the decelerator of this equipment are secondary, constitute its whole mechanically operated positive drive chain. Traditional winding type crane gear is to arrange tile fragment contracting brake to ensure the brake safe of this crane gear in the high speed level transmission between motor and decelerator. But whole gear transmission chain is in outside brake protection, once fatigue fracture occurs in which rank of gear, weight will uncontrolledly fall down, and produce serious consequence.
In recent years, also some winding type crane gear added ended stop to ensure safety at reel end; But, owing to these tile fragment contracting brakes are dependent on braking moment produced by the active force of set spring to embrace its rotating hub, it is constant braking moment; Often cannot adapting to when running into bigger load, braking effect is poor; Reaching its structure of equal braking effect to increase a lot, cause winding type crane gear overall dimensions to increase, weight dramatically increases, and corresponding civilwork engineering quantity increases, and equipment and capital expenditure scale substantially increase.
Summary of the invention
The technical problem to be solved is: the tile fragment contracting brake huge structure in winding type crane gear, and braking moment is constant, the problem of braking effect difference.
The technical scheme is that a kind of some pan brake, including support, left-handed nut, right-handed nut, double rotational directions screw rod, left arm frame, right arm frame, arm support component, brake voussoir, guide pad, friction plate, bearing pin, guiding mechanism, electro hydraulicthruster, swing arm, spring etc.; Wherein, the lower end of described left arm frame and right arm frame joins the right and left at support, upper end thereof one left-handed nut of left arm frame, upper end thereof one right-handed nut of right arm frame respectively through bearing pin;The left-handed threaded portion of described double rotational directions screw rod and left-handed nut screw, and right-handed thread part and right-handed nut screw; Described braking voussoir has one in ramp-like kidney-shaped slotted eye, this kidney-shaped slotted eye matches with guide pad, the bottom of left and right jib is symmetrical, be each provided with guide pad and braking voussoir so that two kidney-shaped blocks of guide pad, braking voussoir two kidney-shaped slotted eyes constitute V-shape; Described friction plate is arranged on the side of braking voussoir, two braking voussoirs of left and right distribution, and its friction plate is in being oppositely arranged; One end of described swing arm and double rotational directions screw rod connect firmly, and its other end is hinged with electro hydraulicthruster.
Described double rotational directions screw rod and the left-handed nut screwed with its phase, right-handed nut are more than single line or two-wire.
Described left-handed nut, right-handed nut are provided with the short pin in termination.
Described left-handed nut and right-handed nut, its short pin shaft line and nut axis at grade and are mutually perpendicular to.
Described electro hydraulicthruster is arranged on support, and it has a push rod, and this push rod is hinged with the other end of described swing arm.
Described electro hydraulicthruster also has a spring, when dead electricity, the elastic force effect of this spring makes its push rod shrink.
Braking, when dead electricity, electro hydraulicthruster is under own spring force effect, and its push rod shrinks, and this push rod drives swing arm one angle of downward rotation by hinging pin shaft, orders about double rotational directions screw rod and rotates corresponding angle; And then make the left-handed nut screwed with double rotational directions screw rod, right-handed nut move towards certain distance, correspondingly drive the angle that left arm frame, the rotation in opposite directions of right arm frame are certain; Then make to be arranged on the guide pad of jib bottom, braking voussoir, friction plate and then inwardly move a distance mutually, clamp braking dish; Effect due to inertia, at this moment braking dish continues to rotate forward under gravity, a small distance is moved down along its tangential direction with movable friction plate, braking voussoir, guide pad, this tangential direction is consistent with the center line of the V-arrangement that two kidney-shaped slotted eyes of the two of two symmetrically arranged guide pads kidney-shaped blocks, braking voussoir are constituted, making braking voussoir more wedge more tight, its wedging power becomes with load and counterweight balance.
Owing to two braking voussoirs of a kind of some pan brake of the present invention are respectively arranged with a kidney-shaped slotted eye, and constitute V-arrangement, there is the effect of voussoir so that braking voussoir more wedge is more tight, and its wedging power becomes with load and counterweight balance, and braking effect is obvious. And this brake force is that it need not arrange the spring of big elastic force, thus its corresponding structure is substantially reduced so that it is structure is more compact produced by load itself causes.
Due also to the combination of the push rod of electro hydraulicthruster and double rotational directions screw rod and the left-handed nut screwed mutually with it, right-handed nut mechanism so that it is in dead electricity situation, it is possible to laborsaving, automatic, be effectively realized braking.
Accompanying drawing explanation
Fig. 1 is the overall front view of the present invention;
Fig. 2 is the left view (having taken away braking dish) of Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the right view of Fig. 5;
Fig. 5 is the front view of left arm frame;
Fig. 6 is the front view of right arm frame;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the front view of guide pad;
Fig. 9 is the left view of Fig. 8;
Figure 10 is the front view of braking voussoir, is also the A-A sectional view of Figure 11;
Figure 11 is the left view of Figure 10;
Figure 12 is the top view of Figure 10;
Figure 13 is the front view of left-handed nut and right-handed nut;
Figure 14 is the top view of Figure 13;
Figure 15 is the front view of double rotational directions screw rod;
Figure 16 is the front view of swing arm;
Figure 17 is the top view of Figure 16.
Detailed description of the invention
In order to be better understood from the present invention, it is described further below in conjunction with 1 to 15 pairs of preferred embodiment of the present invention of accompanying drawing:
In figure, 1 is key, 2 is braking dish, 3 is reel, 4 is right arm frame, 5 is double rotational directions screw rod, 6 is right-handed nut, 7 is swing arm, 8 is electro hydraulicthruster, 9 is support, 10 is arm support component, 11 is bearing pin, 12 is load, 13 is left-handed nut, 14 is left arm frame, 15 is braking voussoir, 16 is spring, 17 is guide pad, 18 is friction plate, 19 is spring, 20 is guiding mechanism, 21 is spring, 41 is pin shaft hole, 42 is riveted holes, 43 is riveted holes, 44 is hinge hole, 51 is left hand thread, 52 is swing arm position, 53 is right-handed thread, 54 is knob handle, 61 is the axis of thread, 62 is short pin shaft line, 63 is threaded portion, 64 is the short pin in termination, the position of 70 swing arm when being take-off the brake, 71 is screw, 72 is tile fragment, 73 is armed lever, 74 is prong, 141 is pin shaft hole, 142 is riveted holes, 143 is riveted holes, 144 is hinge hole, 151 is screw hole, 152 is kidney-shaped slotted eye, 153 is spring socket, 154 is screw hole, 171 is the short pin in termination, 172 is spigot surface, 173 is kidney-shaped block.
Fig. 1,2,3 indicate the monnolithic case being originally preferable to carry out row. Braking dish 2 is connected with reel 3 power by key 1, the pin shaft hole 141 of left arm frame 14, right arm frame 4 pin shaft hole 41 be respectively hinged at the right and left of support 9 by bearing pin 11, the hinge hole 144 of left arm frame 14 is hinged with the termination short pin 64 of left-handed nut 13, and the hinge hole 44 of right arm frame 4 is hinged with the termination short pin 64 of right-handed nut 6; The left side of double rotational directions screw rod 5 is left-handed quadruple thread 51, is that left-handed nut 13 phase of quadruple thread screws with same, and the right of double rotational directions screw rod 5 is dextrorotation quadruple thread 53, is that right-handed nut 6 phase of quadruple thread screws with same. The riveted holes 143 of left arm frame 14 is riveted with the short pin 171 in termination of guide pad 17, and the riveted holes 43 of right arm frame 4 is riveted with the short pin 171 in termination of guide pad 17, and the kidney-shaped slotted eye 152 of braking voussoir 15 is sliding to be fitted on the kidney-shaped block 173 of guide pad 17; Left arm frame 14 has two pieces, is riveted into one at riveted holes 142 place of left arm frame 14 by arm support component 10; Right arm frame 4 has two pieces, is riveted into one at riveted holes 42 place of right arm frame 4 by arm support component 10. Electro hydraulicthruster 8 is arranged on support 9, and it is an assembly, has a telescopic push rod. Swing arm 7 is an assembly, and it includes screw 71, tile fragment 72, armed lever 73, and one end of armed lever 73 is a prong 74; Tile fragment 72, armed lever 73 are filled the span of a man's arms at swing arm position 52 place of double rotational directions screw rod 5 centre, tighten with screw 71; One end of armed lever 73 is the push rod external part of a hinged electro hydraulicthruster 8 in prong shape 74 place.
Fig. 2, in 3, spring 21 is for eliminating the thread pitch of left-handed nut 13, right-handed nut 6. Needs in Figure 10, when knob handle 54 is for assembling. In Figure 11, spring 16 is installed at spring socket 153 place, is used for ensureing that braking voussoir 15 is at any time all in the state of wedging; Screw hole 151 goes out for installing a screw, installs spring 19, to ensure the correct status of braking voussoir 15, is in and can clamp at any time, and screw hole 154 is used for installing friction plate 18. Showing in Figure 14, left-handed nut 13, right-handed nut 6, its short pin shaft line and the axis of thread coexist in a plane and are mutually perpendicular to.
Braking, when dead electricity, electro hydraulicthruster 8 is under own spring force effect, and its push rod shrinks, and this push rod drives downward one angle of rotation of swing arm 7 by hinging pin shaft, orders about double rotational directions screw rod 5 and rotates corresponding angle; And then make the left-handed nut 13 screwed with double rotational directions screw rod 5, right-handed nut 6 move towards certain distance, correspondingly drive the angle that left arm frame 14, right arm frame 4 rotation in opposite directions are certain; Then make to be arranged on the guide pad 17 of left arm frame 14 and right arm frame 4 bottom, braking voussoir 15, friction plate 18 and then inwardly move a distance mutually, clamp braking dish 2; Effect due to inertia, at this moment braking dish 2 continues to rotate forward under gravity, a small distance is moved down along its tangential direction with movable friction plate 18, braking voussoir 15, guide pad 17, this tangential direction is consistent with the center line of the V-arrangement that two kidney-shaped slotted eyes 152 of two kidney-shaped blocks 173 of two symmetrically arranged guide pads 17, braking voussoir 15 are constituted, making braking voussoir 15 more wedge more tight, its wedging power becomes with load 12 and load 12 balances.
Should be noted that: the one point pan brake of the present invention, described preferred embodiment is only in order to illustrate rather than restriction, although the present invention being described in detail with reference to this preferred embodiment, it will be understood by those within the art that, the amendment that the present invention carried out under without departing from the spirit of the present invention and the premise of scope or equivalent replace, such as adopt quadruple thread, it is possible to adopt five lines or six line screw threads etc. All should be encompassed in the middle of scope of the presently claimed invention.
Claims (6)
1. a some pan brake, including support, left-handed nut, right-handed nut, double rotational directions screw rod, left arm frame, right arm frame, arm support component, brakes voussoir, guide pad, friction plate, bearing pin, guiding mechanism, electro hydraulicthruster, swing arm, spring etc.; It is characterized in that, the lower end of described left arm frame and right arm frame joins the right and left at support, upper end thereof one left-handed nut of left arm frame, upper end thereof one right-handed nut of right arm frame respectively through bearing pin; The left-handed threaded portion of described double rotational directions screw rod and left-handed nut screw, and right-handed thread part and right-handed nut screw; Described braking voussoir has one in ramp-like kidney-shaped slotted eye, this kidney-shaped slotted eye matches with guide pad, the bottom of left and right jib is symmetrical, be each provided with guide pad and braking voussoir so that two kidney-shaped blocks of guide pad, braking voussoir two kidney-shaped slotted eyes constitute V-shape; Described friction plate is arranged on the side of braking voussoir, two braking voussoirs of left and right distribution, and its friction plate is in being oppositely arranged; One end of described swing arm and double rotational directions screw rod connect firmly, and its other end is hinged with electro hydraulicthruster.
2. a kind of some pan brake according to claim 1, it is characterised in that described double rotational directions screw rod and the left-handed nut screwed with its phase, right-handed nut are more than single line or two-wire.
3. a kind of some pan brake according to claim 1, it is characterised in that described left-handed nut, right-handed nut are provided with the short pin in termination.
4. a kind of some pan brake according to claim 3, it is characterised in that described left-handed nut and right-handed nut, its short pin shaft line and the axis of thread at grade and are mutually perpendicular to.
5. a kind of some pan brake according to claim 1, it is characterised in that described electro hydraulicthruster is arranged on support, and it has a push rod, and this push rod is hinged with the other end of described swing arm.
6. a kind of some pan brake according to claim 1, it is characterised in that described electro hydraulicthruster also has a spring, when dead electricity, the elastic force effect of this spring makes its push rod shrink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691996.5A CN105645297A (en) | 2014-11-18 | 2014-11-18 | Point disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691996.5A CN105645297A (en) | 2014-11-18 | 2014-11-18 | Point disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105645297A true CN105645297A (en) | 2016-06-08 |
Family
ID=56480437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410691996.5A Pending CN105645297A (en) | 2014-11-18 | 2014-11-18 | Point disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105645297A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2663384A (en) * | 1951-08-08 | 1953-12-22 | Wingfoot Corp | Self-energizing single-disk brake |
| US3968864A (en) * | 1974-04-13 | 1976-07-13 | Fried. Krupp Gesellschaft Mit Beschrankter Haftung | Disc brake, especially for crane drives |
| CN2176943Y (en) * | 1993-07-21 | 1994-09-14 | 葛锡坤 | Automatic compensating brake |
| CN1598348A (en) * | 2004-09-02 | 2005-03-23 | 许艳 | Mechanical disk brake |
| CN101169164A (en) * | 2007-12-04 | 2008-04-30 | 中国石油天然气集团公司 | Disc type brake automatic compensation gap braking clamp |
| CN102425625A (en) * | 2011-09-28 | 2012-04-25 | 黑龙江建龙钢铁有限公司 | Braking device for air blower of bar heating furnace in steel rolling mill |
| CN204310758U (en) * | 2014-11-18 | 2015-05-06 | 广东河海泵业机械有限公司 | A kind of some pan brake |
-
2014
- 2014-11-18 CN CN201410691996.5A patent/CN105645297A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2663384A (en) * | 1951-08-08 | 1953-12-22 | Wingfoot Corp | Self-energizing single-disk brake |
| US3968864A (en) * | 1974-04-13 | 1976-07-13 | Fried. Krupp Gesellschaft Mit Beschrankter Haftung | Disc brake, especially for crane drives |
| CN2176943Y (en) * | 1993-07-21 | 1994-09-14 | 葛锡坤 | Automatic compensating brake |
| CN1598348A (en) * | 2004-09-02 | 2005-03-23 | 许艳 | Mechanical disk brake |
| CN101169164A (en) * | 2007-12-04 | 2008-04-30 | 中国石油天然气集团公司 | Disc type brake automatic compensation gap braking clamp |
| CN102425625A (en) * | 2011-09-28 | 2012-04-25 | 黑龙江建龙钢铁有限公司 | Braking device for air blower of bar heating furnace in steel rolling mill |
| CN204310758U (en) * | 2014-11-18 | 2015-05-06 | 广东河海泵业机械有限公司 | A kind of some pan brake |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160608 |