JP2018096520A5 - - Google Patents
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- JP2018096520A5 JP2018096520A5 JP2016244547A JP2016244547A JP2018096520A5 JP 2018096520 A5 JP2018096520 A5 JP 2018096520A5 JP 2016244547 A JP2016244547 A JP 2016244547A JP 2016244547 A JP2016244547 A JP 2016244547A JP 2018096520 A5 JP2018096520 A5 JP 2018096520A5
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- JP
- Japan
- Prior art keywords
- brake
- housing
- oil passage
- coolant
- hub
- Prior art date
- 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.)
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- 239000002826 coolant Substances 0.000 claims description 17
- 239000003921 oil Substances 0.000 claims description 16
- 230000002093 peripheral Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 2
- 230000004308 accommodation Effects 0.000 claims 1
- 239000000110 cooling liquid Substances 0.000 claims 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Description
上述した課題を解決するため、本発明は、ダンプトラックの車体に非回転状態で取付けられた筒状のアクスルハウジングと、前記アクスルハウジングの軸方向両端側にそれぞれ設けられたスピンドルと、前記スピンドルを取囲むように前記スピンドルの外周側に軸受を介して回転可能に設けられ、外周側に車輪が取付けられた車輪取付筒と、前記スピンドルの外周側に非回転状態で設けられた筒状のブレーキハウジングと、前記ブレーキハウジングに対して回転可能に設けられ前記ブレーキハウジングによって径方向外側から取囲まれた円筒状のブレーキハブと、前記ブレーキハブと前記ブレーキハウジングとの間に設けられたブレーキ板収容空間と、該ブレーキ板収容空間内に配置され、前記ブレーキハブと一体に回転する複数の回転側ブレーキ板と、該各回転側ブレーキ板と交互に重なり合った状態で前記ブレーキ板収容空間内に配置された複数の非回転側ブレーキ板と、前記ブレーキハブと前記ブレーキハウジングとの間に設けられ、前記ブレーキ板収容空間内に充填された冷却液を外部の大気に対して封止する第１シール機構と、前記スピンドルと前記ブレーキハブとの間に設けられ前記冷却液を前記車輪取付筒内の潤滑油に対して封止する第２シール機構と、冷却液を前記ブレーキ板収容空間内で前記回転側ブレーキ板と非回転側ブレーキ板との間に内径側から外径側にかけて供給する冷却液ポンプと、を備えてなるダンプトラックの湿式ブレーキ装置に適用される。 In order to solve the above-described problems, the present invention provides a cylindrical axle housing that is attached to the body of a dump truck in a non-rotating state, spindles that are respectively provided at both axial ends of the axle housing, and the spindle. A wheel mounting cylinder that is rotatably provided via a bearing on the outer peripheral side of the spindle so as to surround the cylinder, and a cylindrical brake that is provided on the outer peripheral side of the spindle in a non-rotating state. A housing, a cylindrical brake hub rotatably provided with respect to the brake housing and surrounded by the brake housing from the outside in the radial direction, and a brake plate housing provided between the brake hub and the brake housing A plurality of rotating side blocks disposed in the space and the brake plate housing space and rotating integrally with the brake hub. Provided between the brake hub and the brake housing, and a plurality of non-rotation side brake plates disposed in the brake plate housing space in a state of alternately overlapping with the respective rotation side brake plates. A first seal mechanism that seals the coolant filled in the brake plate housing space from the outside atmosphere, and the coolant is provided between the spindle and the brake hub, and the coolant is placed in the wheel mounting cylinder. A second seal mechanism that seals against the lubricating oil of the coolant , and cooling that supplies coolant from the inner diameter side to the outer diameter side between the rotating side brake plate and the non-rotating side brake plate in the brake plate housing space The present invention is applied to a wet brake device for a dump truck including a liquid pump.
本発明は、前記冷却液ポンプから吐出される冷却液が前記ブレーキ板収容空間へ供給される第１油路と、前記第１油路から分岐し前記冷却液が前記第１シール機構に供給される第２油路と、前記第１油路から分岐し前記冷却液が前記第２シール機構に供給される第３油路とを備え、前記第２油路には前記冷却液の流通を抑制する第１流通抑制構造が設けられ、前記第３油路には前記冷却液の流通を抑制する第２流通抑制構造が設けられていることを特徴としている。 The present invention includes a first oil passage through which coolant discharged from the coolant pump is supplied to the brake plate housing space, and a branch from the first oil passage to supply the coolant to the first seal mechanism. that a second oil passage, and a third oil passage the cooling fluid branched from the first oil passage is supplied to the second sealing mechanism, inhibiting the flow of the cooling fluid in the second oil passage The first flow restriction structure is provided , and the third oil passage is provided with a second flow restriction structure for restricting the flow of the coolant .
Claims (3)
前記アクスルハウジングの軸方向両端側にそれぞれ設けられたスピンドルと、
前記スピンドルを取囲むように前記スピンドルの外周側に軸受を介して回転可能に設けられ、外周側に車輪が取付けられた車輪取付筒と、
前記スピンドルの外周側に非回転状態で設けられた筒状のブレーキハウジングと、
前記ブレーキハウジングに対して回転可能に設けられ前記ブレーキハウジングによって径方向外側から取囲まれた円筒状のブレーキハブと、
前記ブレーキハブと前記ブレーキハウジングとの間に設けられたブレーキ板収容空間と、
該ブレーキ板収容空間内に配置され、前記ブレーキハブと一体に回転する複数の回転側ブレーキ板と、
該各回転側ブレーキ板と交互に重なり合った状態で前記ブレーキ板収容空間内に配置された複数の非回転側ブレーキ板と、
前記ブレーキハブと前記ブレーキハウジングとの間に設けられ、前記ブレーキ板収容空間内に充填された冷却液を外部の大気に対して封止する第１シール機構と、
前記スピンドルと前記ブレーキハブとの間に設けられ前記冷却液を前記車輪取付筒内の潤滑油に対して封止する第２シール機構と、
冷却液を前記ブレーキ板収容空間内で前記回転側ブレーキ板と非回転側ブレーキ板との間に内径側から外径側にかけて供給する冷却液ポンプと、
を備えてなるダンプトラックの湿式ブレーキ装置において、
前記冷却液ポンプから吐出される冷却液が前記ブレーキ板収容空間へ供給される第１油路と、
前記第１油路から分岐し前記冷却液が前記第１シール機構に供給される第２油路と、
前記第１油路から分岐し前記冷却液が前記第２シール機構に供給される第３油路とを備え、
前記第２油路には前記冷却液の流通を抑制する第１流通抑制構造が設けられ、
前記第３油路には前記冷却液の流通を抑制する第２流通抑制構造が設けられていることを特徴とするダンプトラックの湿式ブレーキ装置。 A cylindrical axle housing mounted in a non-rotating state on the body of the dump truck;
Spindles respectively provided at both axial ends of the axle housing;
A wheel mounting cylinder that is rotatably provided via a bearing on the outer peripheral side of the spindle so as to surround the spindle, and a wheel attached to the outer peripheral side;
A cylindrical brake housing provided in a non-rotating state on the outer peripheral side of the spindle ;
A cylindrical brake hub rotatably provided to the brake housing and surrounded by the brake housing from a radially outer side;
A brake plate housing space provided between the brake hub and the brake housing;
A plurality of rotating brake plates disposed in the brake plate housing space and rotating integrally with the brake hub;
A plurality of non-rotating side brake plates arranged in the brake plate accommodation space in a state of alternately overlapping with the respective rotating side brake plates;
A first seal mechanism that is provided between the brake hub and the brake housing and seals the coolant filled in the brake plate housing space from the outside atmosphere;
A second seal mechanism that is provided between the spindle and the brake hub and seals the coolant against lubricating oil in the wheel mounting cylinder;
A coolant pump for supplying coolant from the inner diameter side to the outer diameter side between the rotation side brake plate and the non-rotation side brake plate in the brake plate housing space;
In a wet brake device for a dump truck comprising:
A first oil passage through which coolant discharged from the coolant pump is supplied to the brake plate housing space;
A second oil passage in which the cooling fluid branched from previous SL first oil passage is supplied to the first sealing mechanism,
A third oil passage branched from the first oil passage and supplied with the coolant to the second seal mechanism,
Before Symbol first flow suppressing structure for suppressing the flow of the cooling liquid is provided in the second oil passage,
A wet brake device for a dump truck, wherein the third oil passage is provided with a second flow restriction structure for restricting the flow of the coolant .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016244547A JP6704845B2 (en) | 2016-12-16 | 2016-12-16 | Wet braking system for dump trucks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016244547A JP6704845B2 (en) | 2016-12-16 | 2016-12-16 | Wet braking system for dump trucks |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018096520A JP2018096520A (en) | 2018-06-21 |
| JP2018096520A5 true JP2018096520A5 (en) | 2019-01-31 |
| JP6704845B2 JP6704845B2 (en) | 2020-06-03 |
Family
ID=62632724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016244547A Active JP6704845B2 (en) | 2016-12-16 | 2016-12-16 | Wet braking system for dump trucks |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6704845B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111409606A (en) * | 2020-04-13 | 2020-07-14 | 长沙凯瑞重工机械有限公司 | Driven axle braking system |
| CN113147693A (en) * | 2021-03-26 | 2021-07-23 | 西安理工大学 | Dynamic automatic cooling system for brake hub of heavy truck |
-
2016
- 2016-12-16 JP JP2016244547A patent/JP6704845B2/en active Active
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