CN203809638U - Hydraulic antiskid self-locking differential mechanism - Google Patents
Hydraulic antiskid self-locking differential mechanism Download PDFInfo
- Publication number
- CN203809638U CN203809638U CN201420206265.2U CN201420206265U CN203809638U CN 203809638 U CN203809638 U CN 203809638U CN 201420206265 U CN201420206265 U CN 201420206265U CN 203809638 U CN203809638 U CN 203809638U
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- Prior art keywords
- differential
- differential mechanism
- piston rod
- skid
- piston
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- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 title claims abstract description 52
- 238000007789 sealing Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 230000002411 adverse Effects 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
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Abstract
The utility model discloses a hydraulic antiskid self-locking differential mechanism and belongs to the technical field of differential mechanisms. The differential mechanism comprises a differential mechanism body and a hydraulic differential lock matched with the differential mechanism body. The hydraulic differential lock comprises a differential lock hub body, a piston rod, a pressure plate, and a spline sleeve located on a left semi-shaft in the differential mechanism body. The spline sleeve is externally provided with a driving friction plate and a driven friction plate. When tires skid, under the effect of pressure oil, a piston pushes the piston rod to push the pressure plate to press the friction plates, a driven spiral bevel gear directly transmits power to the semi-shaft through a differential mechanism case, and the differential mechanism body does not work. The differential mechanism has the advantages of being simple in structure and easy to manufacture; the differential mechanism has the effect, distributing torque equally, of a common differential mechanism; moreover, when a vehicle skids or runs into mud, due to the antiskid self-locking function, the common differential mechanism can be locked completely, all the torque is transmitted to prevent the vehicle from skidding, and the passing ability of the vehicle is improved.
Description
Technical field
The utility model relates to a kind of differential mechanism, specifically a kind of hydraulic type anti-skid no-spin lockup.
Background technique
Open differential has the torsion pass characteristic of " differential is poor turning round not ", and it allows both sides semiaxis with different rotating speed rotations, reduces the friction on tire and ground, if disregard friction torque, can think that the moment of giving left and right semiaxis equates.But this " differential is poor turning round not " characteristic of open differential, can travel and bring adverse effect to machinery, in the time that vehicle is got down hopeless in a quagmire, because adhesion is inadequate, will skid.At this moment the driving force of another wheel not only can not increase, and can reduce on the contrary the same with slip wheel, causes the tractive force of complete machine to greatly reduce.If tractive force can not overcome running resistance, the wheel now skidding is to double the rotational speed of differential carrier.And opposite side does not rotate, before now complete machine stops not.
In order to overcome this shortcoming of open differential, having substantially at present two class methods, a class is both at home and abroad to adopt differential lock that differential mechanism was lost efficacy, and another kind of is the internal drag that increases differential mechanism, limit slippage.In prior art, limited-slip differential can increase the driving force of a side at a slow speed automatically, especially while being uneven or taking a sudden turn on road surface, the excessive friction torque of this automatic increase will affect differential performance, cause tire wear aggravation, the adverse consequencess such as fuel consume increases, hard steering, and this problem is more serious along with the increase of clutch frictional torque.
Model utility content
The purpose of this utility model is to provide a kind of simple in structure and have a differential mechanism of hydraulic type anti-skid auto-lock function, the utility model had both had the characteristic of open differential " differential is poor turning round not ", and can overcome when needed this specific character adverse effect, can avoid again limited-slip differential automatically to increase the caused adverse consequences of friction torque.
The technical solution of the utility model is: a kind of hydraulic type anti-skid no-spin lockup, the differential lock that comprises differential mechanism and coordinate with differential mechanism, described differential mechanism comprises the left shell of the differential mechanism being connected as one by bolt, differential right casing and bevel driven, also comprises by straight pin and bearing pin and is fixed on bevel gear and the differential gear in differential mechanism;
Described differential lock is hydraulic type differential lock, and it comprises the differential lock hub body that is built-in with hydraulic pressure oil duct, and differential lock hub body is sleeved on left half axle and by bearings on the left shell of differential mechanism;
Between the left shell of differential mechanism and left half axle, be provided with hollow slidably piston rod, piston rod cooperation is arranged on left half axle, is provided with the dish spring that piston rod is moved to the left between the left shell of piston rod and differential mechanism; Described piston rod left end is fixed with the piston with the sliding connection of differential lock hub body, between piston and differential lock hub body, is provided with sealing cavity volume, and sealing cavity volume is communicated with described hydraulic pressure oil duct; Described piston rod right-hand member is installed with platen;
On the left half axle of differential mechanism inner volume, be installed with spline housing; Described spline housing is externally connected with active friction plate; Be arranged at intervals with successively driven friction disk with described active friction plate, the outer of driven friction disk is connected with the left shell of differential mechanism; Being describedly provided with right bearing plate from, active friction plate right side, left side is provided with left bearing plate; Described left bearing plate left side is near described platen.
It is further: between described bevel gear and differential right casing, be provided with spherical pad, spherical pad is enclosed within on bearing pin, on spherical pad external diameter, has projection, the groove that differential right casing is provided with and spherical pad projection coordinates.
Between described differential gear and differential right casing, there is differential gear pad.
Described differential lock hub body medial extremity is provided with vertically first shaft shoulder extending, first shaft shoulder by bearings on the left shell of differential mechanism; Between bearing and differential lock hub body, there is bearing shim.
Between described piston left end outer surface and differential lock hub body inwall, be provided with piston packing I, between piston right-hand member outer surface and differential lock hub body inwall, be provided with piston packing II.
Described piston rod right-hand member is provided with second shaft shoulder, and described platen is sleeved on piston rod, and platen left surface is near second shaft shoulder, and platen right flank is provided with the first back-up ring that compresses platen; Described the first back-up ring is fixed on the outer surface of piston rod.
Described spline housing internal surface is connected with left half axle by spline, and spline housing outer surface is connected with the internal tooth of active friction plate by spline.
The outer of described driven friction disk is connected with slide key with the left shell of differential mechanism.
Described right bearing plate snaps between differential gear and differential right casing, is provided with pad at right bearing plate with between the differential gear on right bearing plate right side, and right bearing plate left side is provided with the second back-up ring that the right bearing plate of restriction moves; The second described back-up ring is fixed on spline housing left end outer surface.
Vehicle is in normal running process, the utility model only plays open differential " differential is poor turning round not " effect, when tyre slip, promote piston rod and then promote platen pressing friction sheet at pressure oil effect lower piston, bevel driven directly passes to semiaxis by power through differential carrier, and open differential is not worked.Compared with prior art, the utility model is simple in structure, easy to manufacture, can transmit when needed whole torques, makes two wheel forced synchronizing, can solve the characteristic adverse effect of open differential " differential is poor turning round not ", improves the passing ability of vehicle.
Brief description of the drawings
Fig. 1 is the utility model embodiment's structural representation.
In figure: 1, differential lock hub body; 1.1, first shaft shoulder; 1.2, hydraulic pressure oil duct; 1.3, sealing cavity volume; 2, bearing; 3, bearing shim; 4, piston packing I; 5, piston; 6, piston packing II; 7, piston rod; 7.1, second shaft shoulder; 8, dish spring; 9, the first back-up ring; 10, platen; 11, spline housing; 12, the left shell of differential mechanism; 13, left bearing plate; 14, bolt; 15, driven friction disk; 16, active friction plate; 17, bevel driven; 18, right bearing plate; 19, the second back-up ring; 20, pad; 21, straight pin; 22, bearing pin; 23, spherical pad; 24, bevel gear; 25, differential gear pad; 26, differential gear; 27, differential right casing.
Embodiment
Core of the present utility model is to provide a kind of hydraulic type anti-skid no-spin lockup, and when its hydraulic type anti-skid auto-lock function lost efficacy the driving force of single wheel, opposite side wheel still can provide driving force, improves the passing ability of vehicle.Be below a specific embodiment of the present utility model, existing the utility model is described in further detail by reference to the accompanying drawings.
As shown in Figure 1, bevel driven 17 is linked together by bolt 14 with the left shell 12 of differential mechanism, differential right casing 27.Four bearing pins 22 are embedded in the circular hole of differential right casing 27, and are fixed by straight pin 21.Spherical pad 23, bevel gear 24 are enclosed within on bearing pin 22 successively, on spherical pad 23 external diameters, have projection, are placed in the groove of differential right casing 27 when installation, prevent that spherical pad 23 from rotating.Differential gear 26 is bored tooth with bevel gear 24 by straight-tooth and is connected, and is provided with differential gear pad 25 abrasionproofs between differential gear 26 and differential right casing 27.Under normal state, the power of bevel driven 17 passes to semiaxis through differential right casing 27, bearing pin 22, bevel gear 24, differential gear 26, and at this moment, anti-skidding auto-lock function is inoperative.
Differential lock hub body 1 is arranged on left half axle, and its medial extremity has first shaft shoulder 1.1, the first shaft shoulders 1.1 that extend vertically and is supported on the left shell 12 of differential mechanism by bearing 2.Between bearing 2 and differential lock hub body 1, have bearing shim 3, its thickness is used for adjusting bearing preload.
Between the left shell 12 of differential mechanism and left half axle, be provided with hollow slidably piston rod 7, piston rod 7 cooperations are arranged on left half axle, between the left shell 12 of piston rod 7 and differential mechanism, are provided with the dish spring 8 to piston rod 7 one left pressure; Piston rod 7 left ends are fixed with the piston 5 with 1 sliding connection of differential lock hub body, piston 5 closes cavity volume 1.3 with differential lock hub body 1 mineralization pressure oil sealing, the built-in hydraulic pressure oil duct 1.2 of differential lock hub body 1, hydraulic oil enters in sealing cavity volume by hydraulic pressure oil duct 1.2, promotes piston 5 and is shifted; Between piston 5 outer surfaces and differential lock hub body 1 inwall, be provided with piston packing I4 and piston packing II6, prevent the leakage of hydraulic oil; Between the left shell 12 of piston rod 7 and differential mechanism, be provided with the dish spring 8 to piston rod 7 one left pressure, piston rod 7 right-hand members are installed with platen 10, platen 10 is placed in the left shell 12 of differential mechanism, second shaft shoulder 7.1 of one side contacts piston rod 7, piston rod 7 promotes platen 10 by second shaft shoulder 7.1 and is shifted, platen 10 is fixing by the first back-up ring 9 that is enclosed within piston rod 7, after oil pressure disappears, with piston rod 7 returns.
Some active friction plates 16 and driven friction disk 15 are arranged at intervals in the inner volume of the left shell 12 of differential mechanism successively, and the internal tooth of active friction plate 16 is connected with spline housing 11 external spliness, and the outer of its driven friction disk 15 is connected with left shell 12 slide keys of differential mechanism.
Between friction plate 15,16 and differential right casing 27, be provided with right bearing plate 18, right bearing plate 18, by the second back-up ring 19 moving-limitings that are enclosed within on spline housing 11, is provided with pad 20 between right bearing plate 18 and differential gear 26.Spline housing 11 internal splines are connected with Formation of Axle Shaft Spline, are provided with left bearing plate 13 between friction plate and platen 10.
When wheel-slip or while getting down hopeless in a quagmire, hydraulic oil is entered by the hydraulic pressure oil duct 1.2 of differential lock hub body 1 in the sealing cavity volume 1.3 forming with piston 5, under oil pressure effect, piston 5 promote piston rod 7 overcome dish spring 8 elastic force occur axially displaced, piston rod 7 promotes platen 10 pressing friction sheets 15,16 by second shaft shoulder 7.1.The power that bevel driven 17 is transmitted is directly passed to left and right semiaxis through differential carrier 12,27, and differential mechanism does not play differential action, has played the effect of skidding of preventing.Cross and skid after muddy road surface, discharge after the hydraulic oil in sealing cavity volume 1.3, dish spring 8 makes platen 10 move to left with piston rod 7, separates with friction plate 15,16, and differential mechanism recovers differential function.
Claims (9)
1. a hydraulic type anti-skid no-spin lockup, the differential lock that comprises differential mechanism and coordinate with differential mechanism, described differential mechanism comprises the left shell of differential mechanism (12), differential right casing (27) and the bevel driven (17) that are connected as one by bolt (14), also comprises by straight pin (21) and bearing pin (22) and is fixed on bevel gear (24) and the differential gear (25) in differential mechanism;
It is characterized in that:
Described differential lock is hydraulic type differential lock, and it comprises the differential lock hub body (1) that is built-in with hydraulic pressure oil duct (1.2), and differential lock hub body (1) is sleeved on left half axle and is supported on the left shell of differential mechanism (12) by bearing (2);
Between the left shell of differential mechanism (12) and left half axle, be provided with hollow slidably piston rod (7), piston rod (7) cooperation is arranged on left half axle, is provided with the dish spring (8) that piston rod (7) is moved to the left between piston rod (7) and the left shell of differential mechanism (12); Described piston rod (7) left end is fixed with the piston (5) with differential lock hub body (1) sliding connection, between piston (5) and differential lock hub body (1), be provided with sealing cavity volume (1.3), sealing cavity volume (1.3) is communicated with described hydraulic pressure oil duct (1.2); Described piston rod (7) right-hand member is installed with platen (10);
On the left half axle of differential mechanism inner volume, be installed with spline housing (11); Described spline housing (11) is externally connected with active friction plate (16); Be arranged at intervals with successively driven friction disk (15) with described active friction plate (16), the outer of driven friction disk (15) is connected with the left shell of differential mechanism (12); Being describedly provided with right bearing plate (18) from, active friction plate (15,16) right side, left side is provided with left bearing plate (13); Described left bearing plate (13) left side is near described platen (10).
2. hydraulic type anti-skid no-spin lockup according to claim 1, it is characterized in that: between described bevel gear (24) and differential right casing (27), be provided with spherical pad (23), spherical pad (23) is enclosed within on bearing pin (22), on spherical pad (23) external diameter, have projection, differential right casing (27) is provided with the groove coordinating with spherical pad (23) projection.
3. hydraulic type anti-skid no-spin lockup according to claim 1, is characterized in that: between described differential gear (26) and differential right casing (27), have differential gear pad (25).
4. hydraulic type anti-skid no-spin lockup according to claim 1, it is characterized in that: described differential lock hub body (1) medial extremity is provided with first shaft shoulder (1.1) extending vertically, and first shaft shoulder (1.1) is supported on the left shell of differential mechanism (12) by bearing (2); Between bearing (2) and differential lock hub body (1), there is bearing shim (3).
5. hydraulic type anti-skid no-spin lockup according to claim 1, it is characterized in that: between described piston (5) left end outer surface and differential lock hub body (1) inwall, be provided with piston packing I(4), between piston (5) right-hand member outer surface and differential lock hub body (1) inwall, be provided with piston packing II(6).
6. hydraulic type anti-skid no-spin lockup according to claim 1, it is characterized in that: described piston rod (7) right-hand member is provided with second shaft shoulder (7.1), described platen (10) is sleeved on piston rod, platen (10) left surface is near second shaft shoulder (7.1), and platen (10) right flank is provided with the first back-up ring (9) that compresses platen (10); Described the first back-up ring (9) is fixed on the outer surface of piston rod (7).
7. hydraulic type anti-skid no-spin lockup according to claim 1, is characterized in that: described spline housing (11) internal surface is connected with left half axle by spline, and spline housing (11) outer surface is connected with the internal tooth of active friction plate (16) by spline.
8. hydraulic type anti-skid no-spin lockup according to claim 1, is characterized in that: the outer of described driven friction disk (15) is connected with slide key with the left shell of differential mechanism (12).
9. hydraulic type anti-skid no-spin lockup according to claim 1, it is characterized in that: described right bearing plate (18) snaps between differential gear (26) and differential right casing (27), at right bearing plate (18) be positioned between the differential gear (26) on right bearing plate (18) right side and be provided with pad (20), right bearing plate (18) left side is provided with mobile the second back-up ring (19) of the right bearing plate of restriction (18); Described the second back-up ring (19) is fixed on spline housing (11) left end outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206265.2U CN203809638U (en) | 2014-04-25 | 2014-04-25 | Hydraulic antiskid self-locking differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206265.2U CN203809638U (en) | 2014-04-25 | 2014-04-25 | Hydraulic antiskid self-locking differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809638U true CN203809638U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420206265.2U Expired - Lifetime CN203809638U (en) | 2014-04-25 | 2014-04-25 | Hydraulic antiskid self-locking differential mechanism |
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| CN (1) | CN203809638U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939570A (en) * | 2014-04-25 | 2014-07-23 | 徐工集团工程机械股份有限公司 | Hydraulic antiskid self-locking differential mechanism |
| CN104482163A (en) * | 2014-11-28 | 2015-04-01 | 长城汽车股份有限公司 | Locking differential and automobile |
| CN105697712A (en) * | 2016-03-07 | 2016-06-22 | 第拖拉机股份有限公司 | Differential with hydraulic differential lock for tractor |
| CN106812908A (en) * | 2015-11-30 | 2017-06-09 | 长城汽车股份有限公司 | Limited-slip differential and the vehicle with it |
| WO2017198097A1 (en) * | 2016-05-20 | 2017-11-23 | 泗阳县勇士机械制造有限公司 | Variable torque limited slip differential and method for designing same |
| CN108953547A (en) * | 2018-09-10 | 2018-12-07 | 柳工柳州传动件有限公司 | Hydraulic Lock differential mechanism |
| CN108953538A (en) * | 2018-08-22 | 2018-12-07 | 柳工柳州传动件有限公司 | Main gearbox assembly and drive axle |
-
2014
- 2014-04-25 CN CN201420206265.2U patent/CN203809638U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939570A (en) * | 2014-04-25 | 2014-07-23 | 徐工集团工程机械股份有限公司 | Hydraulic antiskid self-locking differential mechanism |
| CN104482163A (en) * | 2014-11-28 | 2015-04-01 | 长城汽车股份有限公司 | Locking differential and automobile |
| CN106812908A (en) * | 2015-11-30 | 2017-06-09 | 长城汽车股份有限公司 | Limited-slip differential and the vehicle with it |
| CN105697712A (en) * | 2016-03-07 | 2016-06-22 | 第拖拉机股份有限公司 | Differential with hydraulic differential lock for tractor |
| CN105697712B (en) * | 2016-03-07 | 2018-10-30 | 第一拖拉机股份有限公司 | Differential for tractors device with hydraulic differential lock |
| WO2017198097A1 (en) * | 2016-05-20 | 2017-11-23 | 泗阳县勇士机械制造有限公司 | Variable torque limited slip differential and method for designing same |
| CN108953538A (en) * | 2018-08-22 | 2018-12-07 | 柳工柳州传动件有限公司 | Main gearbox assembly and drive axle |
| CN108953547A (en) * | 2018-09-10 | 2018-12-07 | 柳工柳州传动件有限公司 | Hydraulic Lock differential mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
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| CX01 | Expiry of patent term |