CN2446003Y - Block brake unit - Google Patents
Block brake unit Download PDFInfo
- Publication number
- CN2446003Y CN2446003Y CN 00210454 CN00210454U CN2446003Y CN 2446003 Y CN2446003 Y CN 2446003Y CN 00210454 CN00210454 CN 00210454 CN 00210454 U CN00210454 U CN 00210454U CN 2446003 Y CN2446003 Y CN 2446003Y
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- brake
- lever
- hole
- bar
- adjustment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a block brake unit suitable for the double-side brake of a wheel of high-speed locomotives, which comprises a driving and a driven braking mechanisms positioned on both sides of a wheel. The utility model is characterized in that the driving braking mechanism comprises a block gap adjuster, and a brake pull rod and a sleeve type pull rod for connecting two braking mechanisms are arranged between the driving and the driven braking mechanisms; a brake rod of which one end is fixedly hinged on a frame and a balance rod of which the middle is fixedly hinged on the frame are arranged in the driven braking mechanism, the brake rod is connected with an adjusting screw on a connecting bolt hinged with the lower end of the balance rod through an adjusting nut in a hole on a pin shaft of the middle of the brake rod, and the upper and the lower ends of the balance rod and the brake rod are respectively connected with one end of the sleeve type pull rod and the brake pull rod. After a block is abraded, the clock brake unit can rapidly adjust a gap between the block and the wheel to a uniform state, and symmetrical braking force of both sides of the utility model can counteract radial thrust generated for vehicle shafts and bearings so as to reduce the nonuniform abrasion of the bearings.
Description
The utility model relates to a kind of Block brake unit, is particularly useful for the right bilateral foundation brake of high speed railway locomotive radial steering wheel.
In the brake unit that disclosed rail vehicles had adopted at present, mainly form by the power-absorption unit that comprises brake cylinder, spring stop device and reset attachment.As US Patent: rolling stock just belongs to this kind form with the disclosed brake unit of brake unit (US4607729).Such brake unit, the common steering framing wheel that is usually used in general rail vehicles is to last one-sided foundation brake.When the locomotive that is in high-speed cruising needed braking force when stopping can correspondingly increase thereupon, the abrasion of brake shoe are accelerated, therefore need adjust continually brake shoe with take turns to the gap, when brake clearance is adjusted, be difficult to satisfy with disclosed brake unit and to make the gap reach the requirement of uniformity rapidly, particularly when express locomotive adopts radial steering, the more difficult uniformity that reaches of the adjustment of brake clearance.In addition, because the common single brake shoe brake unit that adopts is only in a side brake activation power of wheel, the one-sided radial thrust of bearing of axletree and bearing thereof can be aggravated the irregular wear of bearing like this.
The purpose of this utility model will provide a kind of later-model Block brake unit exactly, behind brake block abrasion, can eliminate the one-sided radial thrust of braking force, to reduce the irregular wear of bearing promptly with the state of the adjust the clearance between brake shoe and wheel to uniformity to axletree and bearing generation.
The related Block brake unit of the utility model is achieved in that a kind of Block brake unit, this Block brake unit comprises the active force stop mechanism that is positioned at wheel tread one side, described active force stop mechanism comprises power-absorption unit, spring stop device and reset attachment, described power-absorption unit comprises: the braking body, with bolster on this braking body be fixedly hinged S shape lever, the lower end of described S shape lever is provided with and can drives the brake cylinder that this S shape lever rotates, the upper end of described S shape lever is provided with and is resisted against and can reaches the spring stop device that interrelates with this parking brake lever around the parking brake lever that bearing pin rotates, at S shape lever and be equipped with between the brake head of brake shoe and be provided with brake slack adjuster, the brake screw that drives brake head is housed in the described brake slack adjuster, be characterized in: the opposite side relative with the active force stop mechanism that is positioned at wheel tread one side is provided with driven stop mechanism, in this driven stop mechanism, be provided with brake lever, this brake lever upper end being provided with to be fixed and being articulated in bearing pin on the framework, swivel pin is housed in the hole of this brake lever lower end to be reached and this swivel pin pivotally attached lever connection, the other end of this lever connection is articulated in the bearing pin in the earrings hole on the braking body of active force stop mechanism, on the bearing pin in hole, described brake lever middle part, with in vertical hole of this bearing pin axis normal adjustment nut and adjustment screw rod with matching are housed, in the earrings hole of this adjustment screw rod one end, be equipped with tie bolt and with the brake head of this tie bolt pivotally attached band brake shoe, in tie bolt and brake head hinged place, the compensating bar hinged with described tie bolt, the centre of this compensating bar is provided with to be fixed and is articulated in bearing pin on the framework, be provided with swivel pin in the hole of compensating bar upper end, this swivel pin is hinged shell type pull bar, the other end of this shell type pull bar are articulated in the bearing pin of the brake screw in the brake slack adjuster in the power-absorption unit.
One end of described shell type pull bar is provided with joint, stud with in the hole of this joint one end with driven stop mechanism in the spherical bushing that is hinged of the swivel pin of compensating bar upper end, the core bar that hollow draw-bar is housed in the hole of the other end of this joint and fixes with this hollow draw-bar, on this core bar, from left to right successively suit swivel nut, pad and elastic connector, at described swivel nut, pad, on elastic connector and the core bar cylindrical suit adjust gloves, at two adjacent end place suits of hollow draw-bar and swivel nut sheath, the adjustment nut that band gudgeon with matching is arranged on the external thread section of swivel nut has pivotally attached locking hook on adjusting the gudgeon of gloves.
Described brake slack adjuster comprises: from the thread segment of brake screw preceding adjustment nut with threads engaged is housed successively from left to right, back adjustment nut and with back adjustment nut mating teeth cover, on described tooth cover cylindrical, right-to-left is equipped with back-up ring successively, pad, stop spring, locating ring and drive sleeve, this drive sleeve is provided with and S shape lever pivotally attached gudgeon, on the cylindrical of described tooth cover left end suit the adjustment body, on the braking body, fixed the spacing shift fork that limits this adjuster displacement body size, left side section in this adjuster body opening is equipped with the front clutch that is meshed with preceding adjustment nut, in the annular space of the Kong Yuqian of this front clutch adjustment nut cylindrical, be equipped with and be pressed against the pad on the front clutch and be pressed against adjustment spring on this pad, the other end of this adjustment spring is pressed against the positioning retainer ring of bearing and this bearing, in the hole of adjusting the right section of body, be equipped with and be pressed against the bearing on the adjustment nut of back and be pressed against regulating spring on this bearing, the other end of this regulating spring is pressed against and is fixed on the spring perch of adjusting on the body, be respectively equipped with two spacing back-up rings at the two ends of adjuster body opening, front clutch is provided with feather key
The helical angle of the screw thread on described brake screw is greater than from the locking angle.
The Block brake unit that the utility model relates to, by the combined action of the brake slack adjuster in the power-absorption unit, shell type pull bar and lever connection and driven stop mechanism, can be promptly with the state of the adjust the clearance between brake shoe and wheel to uniformity.In addition, owing to increased driven stop mechanism and corresponding lever connection thereof, can be in the wheel and arranged on left and right sides simultaneously to the wheel brake activation, clasp brake power is cancelled each other to the radial thrust of axletree and bearing generation thereof, therefore can reduce the irregular wear of bearing.
Be described in detail the best technical application scheme of the Block brake unit that the utility model relates to below in conjunction with accompanying drawing:
Fig. 1. be the assembly drawing of the Block brake unit that relates to of the utility model;
Fig. 2. be the birds-eye view of Fig. 1;
Fig. 3. be the cutaway view of A-A among Fig. 1;
Fig. 4. be the cutaway view of B-B among Fig. 1;
Fig. 5. be the partial enlarged view of the brake slack adjuster among Fig. 1.
By Fig. 1 to Fig. 5 as can be known, the related Block brake unit of the utility model comprises: the active force stop mechanism that is positioned at wheel tread one side, described active force stop mechanism comprises power-absorption unit, spring stop device and reset attachment, described power-absorption unit comprises: braking body 35, with bolster 57 on this braking body be fixedly hinged S shape lever 34, the lower end of described S shape lever is provided with and can drives the brake cylinder 36 that this S shape lever rotates, the upper end of described S shape lever is provided with and is resisted against and can reaches the spring stop device that interrelates with this parking brake lever around the parking brake lever 28 that bearing pin 27 rotates, at S shape lever and be equipped with between the brake head 38 of brake shoe and be provided with brake slack adjuster, the brake screw 33 that drives brake head 38 is housed in the described brake slack adjuster, it is characterized in that: the opposite side relative with the active force stop mechanism that is positioned at wheel tread one side is provided with driven stop mechanism, in this driven stop mechanism, be provided with brake lever 4, this brake lever upper end being provided with to be fixed and being articulated in bearing pin 7 on the framework, swivel pin 2 is housed in the hole of this brake lever lower end to be reached and this swivel pin pivotally attached lever connection 1, the other end of this lever connection is articulated in the bearing pin 37 in the earrings hole on the braking body 35 of active force stop mechanism, on the bearing pin 51 in hole, described brake lever 4 middle part, with in vertical hole of this bearing pin axis normal adjustment nut 53 and adjustment screw rod 52 with matching are housed, in the earrings hole of this adjustment screw rod one end, be equipped with tie bolt 50 and with the brake head 3 of this tie bolt pivotally attached band brake shoe, in tie bolt 50 and brake head hinged place, the compensating bar 5 hinged with described tie bolt 50, the centre of this compensating bar is provided with to be fixed and is articulated in bearing pin 6 on the framework, be provided with swivel pin 8 in the hole of compensating bar 5 upper ends, this swivel pin is hinged shell type pull bar 40～49, the other end of this shell type pull bar are articulated in the bearing pin 39 of the brake screw 33 in the brake slack adjuster in the power-absorption unit.
One end of described shell type pull bar 40～49 is provided with joint 48, stud with in the hole of this joint one end with driven stop mechanism in the spherical bushing 49 that is hinged of the swivel pin 8 of compensating bar 5 upper ends, the core bar 46 that hollow draw-bar 47 is housed in the hole of the other end of this joint and fixes with this hollow draw-bar, on this core bar, from left to right successively suit swivel nut 43, pad 42 and elastic connector 41, at described swivel nut 43, pad 42, on elastic connector 41 and core bar 46 cylindricals suit adjust gloves 40, at two adjacent end place suits of hollow draw-bar 47 and swivel nut 43 sheath 45, the adjustment nut 44 that band gudgeon 10 with matching is arranged on the external thread section of swivel nut 43 has pivotally attached locking hook 9 on adjusting the gudgeon 11 of gloves 40.
Described brake slack adjuster comprises: from the thread segment of brake screw 33 preceding adjustment nut 12 with threads engaged is housed successively from left to right, back adjustment nut 24 and with back adjustment nut 24 mating teeth cover 25, overlap on 25 cylindricals at described tooth, right-to-left is equipped with back-up ring 32 successively, pad 31, stop spring 30, locating ring 29 and drive sleeve 55, this drive sleeve is provided with and S shape lever pivotally attached gudgeon 56, the adjustment body 22 that overlapped on the cylindrical of 25 left ends suit at described tooth, on braking body 35, fixed the spacing shift fork 54 that limits this adjuster displacement body size, left side section in these adjustment body 22 holes is equipped with the front clutch 14 that is meshed with preceding adjustment nut 12, the pad 15 that is pressed against on the front clutch 14 is housed in the annular space of the Kong Yuqian of this front clutch adjustment nut 12 cylindricals and is pressed against adjustment spring 16 on this pad, the other end of this adjustment spring is pressed against the positioning retainer ring 19 of bearing 18 and this bearing, in the hole of adjusting body 22 right sections, be equipped with and be pressed against the bearing 23 on the adjustment nut 24 of back and be pressed against regulating spring 21 on this bearing, the other end of this regulating spring is pressed against and is fixed on the spring perch of adjusting on the body 22 20, be respectively equipped with spacing back-up ring 13 and 26 at the two ends of adjusting body 22 holes, front clutch 14 is provided with feather key 17.
The helical angle of the screw thread on described brake screw 33 is greater than from the locking angle, for example the non-self-locking thread of four-head.
Claims (4)
1. Block brake unit, this Block brake unit comprises the active force stop mechanism that is positioned at wheel tread one side, described active force stop mechanism comprises power-absorption unit, spring stop device and reset attachment, described power-absorption unit comprises: braking body (35), with bolster (57) on this braking body be fixedly hinged S shape lever (34), the lower end of described S shape lever is provided with and can drives the brake cylinder (36) that this S shape lever rotates, the upper end of described S shape lever is provided with and is resisted against and can reaches the spring stop device that interrelates with this parking brake lever around the parking brake lever (28) that bearing pin (27) rotates, at S shape lever and be equipped with between the brake head (38) of brake shoe and be provided with brake slack adjuster, the brake screw (33) that drives brake head (38) is housed in the described brake slack adjuster, it is characterized in that: the opposite side relative with the active force stop mechanism that is positioned at wheel tread one side is provided with driven stop mechanism, in this driven stop mechanism, be provided with brake lever (4), this brake lever upper end being provided with to be fixed and being articulated in bearing pin (7) on the framework, swivel pin (2) is housed in the hole of this brake lever lower end to be reached and this swivel pin pivotally attached lever connection (1), the braking body (35) that the other end of this lever connection is articulated in the active force stop mechanism is gone up the bearing pin (37) in the earrings hole, on the bearing pin (51) in described brake lever (4) hole, middle part, with in vertical hole of this bearing pin axis normal adjustment nut (53) and adjustment screw rod with matching (52) are housed, in the earrings hole of this adjustment screw rod one end, be equipped with tie bolt (50) and with the brake head (3) of this tie bolt pivotally attached band brake shoe, in tie bolt (50) and brake head hinged place, the compensating bar (5) hinged with described tie bolt (50), the centre of this compensating bar is provided with to be fixed and is articulated in bearing pin (6) on the framework, be provided with swivel pin (8) in the hole of compensating bar (5) upper end, this swivel pin is hinged shell type pull bar (40～49), and the other end of this shell type pull bar is articulated in the bearing pin (39) of the brake screw (33) in the brake slack adjuster in the power-absorption unit.
2. Block brake according to claim 1 unit, it is characterized in that: an end of described shell type pull bar (40～49) is provided with joint (48), stud with in the hole of this joint one end with driven stop mechanism in the spherical bushing (49) that is hinged of the swivel pin (8) of compensating bar (5) upper end, the core bar (46) that hollow draw-bar (47) is housed in the hole of the other end of this joint and fixes with this hollow draw-bar, on this core bar, from left to right successively suit swivel nut (43), pad (42) and elastic connector (41), in described swivel nut (43), pad (42), on elastic connector (41) and core bar (46) cylindrical suit adjust gloves (40), at two adjacent end place suits of hollow draw-bar (47) and swivel nut (43) sheath (45), the adjustment nut (44) that band gudgeon with matching (10) is arranged on the external thread section of swivel nut (43) has pivotally attached locking hook (9) on adjusting the gudgeon of gloves (40) (11).
3. Block brake according to claim 1 unit, it is characterized in that: described brake slack adjuster comprises: from the thread segment of brake screw (33) preceding adjustment nut (12) with threads engaged is housed successively from left to right, back adjustment nut (24) and with the back adjustment nut (24) mating teeth cover (25), on described tooth cover (25) cylindrical, right-to-left is equipped with back-up ring (32) successively, pad (31), stop spring (30), locating ring (29) and drive sleeve (55), this drive sleeve is provided with and S shape lever pivotally attached gudgeon (56), on the cylindrical of described tooth cover (25) left end suit adjustment body (22), on braking body (35), fixed the spacing shift fork (54) that limits this adjuster displacement body size, left side section in this adjustment body (22) hole is equipped with the front clutch (14) that is meshed with preceding adjustment nut (12), the pad (15) that is pressed against on the front clutch (14) is housed in the annular space of the Kong Yuqian of this front clutch adjustment nut (12) cylindrical and is pressed against adjustment spring (16) on this pad, the other end of this adjustment spring is pressed against the positioning retainer ring (19) of bearing (18) and this bearing, in the hole of adjusting the right section of body (22), be equipped with and be pressed against the bearing (23) on the back adjustment nut (24) and be pressed against regulating spring (21) on this bearing, the other end of this regulating spring is pressed against and is fixed on the spring perch of adjusting on the body (22) (20), be respectively equipped with spacing back-up ring (13) and (26) at the two ends of adjusting body (22) hole, front clutch (14) is provided with feather key (17).
4. Block brake according to claim 1 unit is characterized in that: the helical angle of the screw thread on described brake screw (33) is greater than from the locking angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210454 CN2446003Y (en) | 2000-09-25 | 2000-09-25 | Block brake unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210454 CN2446003Y (en) | 2000-09-25 | 2000-09-25 | Block brake unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2446003Y true CN2446003Y (en) | 2001-09-05 |
Family
ID=33577334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00210454 Expired - Lifetime CN2446003Y (en) | 2000-09-25 | 2000-09-25 | Block brake unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2446003Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376443C (en) * | 2003-07-21 | 2008-03-26 | 阿塞泰克股份有限公司 | Pivot joint connecting brake head to brake beam |
| CN102039912A (en) * | 2010-12-08 | 2011-05-04 | 青岛四方车辆研究所有限公司 | Shoe clearance adjusting device for brake of railway vehicle unit |
| CN102060032A (en) * | 2010-12-08 | 2011-05-18 | 青岛四方车辆研究所有限公司 | Brake for railway vehicle unit |
| CN102257291A (en) * | 2008-12-17 | 2011-11-23 | 纳博特斯克株式会社 | Brake cylinder device and unit brake |
| CN107472270A (en) * | 2017-09-22 | 2017-12-15 | 中车兰州机车有限公司 | A kind of transport vehicle |
| CN112758129A (en) * | 2021-01-26 | 2021-05-07 | 中车太原机车车辆有限公司 | Brake shoe angle adjusting device |
| US11904920B2 (en) | 2021-11-19 | 2024-02-20 | Raytheon Company | Lift cart with mechanically actuated automatic braking device |
-
2000
- 2000-09-25 CN CN 00210454 patent/CN2446003Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376443C (en) * | 2003-07-21 | 2008-03-26 | 阿塞泰克股份有限公司 | Pivot joint connecting brake head to brake beam |
| CN102257291A (en) * | 2008-12-17 | 2011-11-23 | 纳博特斯克株式会社 | Brake cylinder device and unit brake |
| CN102257291B (en) * | 2008-12-17 | 2014-02-19 | 纳博特斯克株式会社 | Brake cylinder device and unit brake |
| CN102039912A (en) * | 2010-12-08 | 2011-05-04 | 青岛四方车辆研究所有限公司 | Shoe clearance adjusting device for brake of railway vehicle unit |
| CN102060032A (en) * | 2010-12-08 | 2011-05-18 | 青岛四方车辆研究所有限公司 | Brake for railway vehicle unit |
| CN102039912B (en) * | 2010-12-08 | 2012-10-03 | 青岛四方车辆研究所有限公司 | Shoe clearance adjusting device for brake of railway vehicle unit |
| CN102060032B (en) * | 2010-12-08 | 2012-12-19 | 青岛四方车辆研究所有限公司 | Brake for railway vehicle unit |
| CN107472270A (en) * | 2017-09-22 | 2017-12-15 | 中车兰州机车有限公司 | A kind of transport vehicle |
| CN107472270B (en) * | 2017-09-22 | 2023-10-31 | 中车兰州机车有限公司 | Transport vehicle |
| CN112758129A (en) * | 2021-01-26 | 2021-05-07 | 中车太原机车车辆有限公司 | Brake shoe angle adjusting device |
| US11904920B2 (en) | 2021-11-19 | 2024-02-20 | Raytheon Company | Lift cart with mechanically actuated automatic braking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 51, middle The Strip, Shahekou District, Liaoning, Dalian Province, China: 116022 Patentee after: China Beiche Group Dalian Locomotive & Roll Stock Works Address before: No. 51, middle The Strip, Shahekou District, Liaoning, Dalian Province, China: 116022 Patentee before: Dalian Locomotive & Rolling Stock Works |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA NORTH GROUP DALIAN ROLLING STOCK CART CO., L Free format text: FORMER NAME: DALIAN LOCOMOTIVE VEHICLE FACTORY |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20100925 Granted publication date: 20010905 |