CN102943831B - Hydrodynamic retarder - Google Patents
Hydrodynamic retarder Download PDFInfo
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- CN102943831B CN102943831B CN201210478065.8A CN201210478065A CN102943831B CN 102943831 B CN102943831 B CN 102943831B CN 201210478065 A CN201210478065 A CN 201210478065A CN 102943831 B CN102943831 B CN 102943831B
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Abstract
The invention discloses a hydrodynamic retarder. The hydrodynamic retarder comprises a case (1) and a transmission main shaft (2), a front rotating impeller (3) and a rear rotating impeller (4) are arranged on the transmission main shaft (2), a braking pressure regulating switch, a gear pump and a water pump are arranged on the case (1), the gear pump is connected with the transmission main shaft, the water pump is connected with the gear pump, the front rotating impeller (3) is connected with the transmission main shaft (2) through a driving wheel flange (5), the rear rotating impeller (4) is connected with the transmission main shaft (2) through a planetary gear set, and oil inlet holes (6) and oil outlet holes (7) are uniformly arranged on the front rotating impeller (3). The hydrodynamic retarder has the advantages that the structural design is reasonable, the braking efficiency is high, the reliability is high, simultaneously the manufacturing is simple, the manufacturing cost is low, and the service life is long.
Description
Technical field
The present invention relates to a kind of hydrodynamic retarder.
Background technique
The utility model patent that a kind of name is called " a kind of engine driven supercharging regulates hydraulic turbine retarder " is disclosed in CN201896889U, it comprises shell, transmission main shaft, brake structure and oil-returning structure, shell is provided with water cooling system, and shell is provided with oil conservator, oil inlet passage and drainback passage; The oil outlet of oil conservator is communicated with the filler opening of active chamber by oil inlet passage, and the oil outlet of active chamber is communicated with the return opening of oil conservator by drainback passage; Oil-returning structure is made up of fuel oil feed regulation switch, drain cock and multiple oil back chamber; Fuel oil feed regulation switch-linear hybrid, in oil inlet passage, is communicated with/closes between the oil outlet of fuel oil feed regulation switch control rule oil conservator and the filler opening of active chamber; Drain cock arranges in drainback passage, and drain cock controls to be communicated with/to close between the return opening of oil conservator and the oil outlet of active chamber.The retarder of structure can play the effect of brake although it is so, but it still exists following shortcoming:
1., because rear wheel rotor maintains static dynamic, when forward moves Impeller trim hydraulic oil, its cutting power is lower, and cause hydrodynamic retarder to work overloadingly, working life is shorter;
2. because rear wheel rotor is fixed on housing, then driven impeller is not identical again with the material of housing, and cause it to manufacture complicated, manufacture cost is higher;
3., during rear wheel rotor rotation contrary to front wheel rotor, can reaction force be produced for the housing be connected with rear wheel rotor, cause the lost of life of its housing.
4. owing to being be respectively arranged with independent oil-feed tap changer, drain cock and tap changer, cause they taking more shell space, the area of housing is increased, not only inconvenience is installed, and makes manufacture cost higher;
5. be provided separately because this oil-feed tap changer, drain cock and tap changer are, and too far away for the oil duct standoff distance connected between them, affect fuel feeding usefulness, there is when fuel feeding certain delay, cause hydrodynamic retarder sluggish;
6. because tap changer is made up of the through hole on the sidewall of switch sleeve, spring, steel ball, bolt and switch sleeve rear end, structure is too simple, causes when pressure regulation, pressure regulation dynamics inaccuracy, makes brake not steady;
7. because drain cock is positioned at housing, operationally produce high temperature, in high temperature environments, easily cause the Sealing of piston aging, cause drain cock easily to produce the problem of leakage of oil;
8. the position design due to oil-feed tap changer is unreasonable, housing is when outside oil extraction, be subject to the obstruction of fuel oil feed regulation switch, make housing produce high temperature, braking effect reduces, and, because the spring of oil-feed tap changer is long, easily there is stuck phenomenon, cause spring failure, make oil-feed tap changer in running order for a long time, thus cause hydrodynamic retarder to be in braking state always.
9., because the gear pump on retarder does not have refrigerating function, so cause the hydraulic fluid temperature in gear pump higher, in high temperature environments, the working life of hydraulic oil shortens greatly;
10. due to the gear pump on retarder after mounting, lid both sides tolerance is comparatively large, and cause when pump oil, oil pressure is lower, makes hydrodynamic retarder inefficiency;
11. are non-standard due to the external tooth on gear pump and internal tooth, manufacture difficulty, cause manufacture cost higher;
12. due to the internal tooth on gear pump with go out to be eccentric engagement, when internal tooth rotation is too fast, cause external tooth centrifugal force to increase, make outer odontotripsis shell, shell is shorter for working life.
13. these structural cooling systems cannot on hydrodynamic retarder for support and fixed conveyor main shaft bearing cooling, once bearing working overlong time, bearing temperature raise, bearing life will shorten greatly;
14. these structural cooling systems cannot cool the gear pump on hydrodynamic retarder, and cause the hydraulic fluid temperature on gear pump to raise, the working life of hydraulic oil shortens greatly, and meanwhile, the gear life that result in gear pump shortens;
15, because this structural cooling system adopts external water pump, make the manufacture cost of system higher;
16. because the water pump employing electric power on retarder is as kinetic energy, once circuit breaks down, this water pump cannot work, and causes cooling system to cool.
Summary of the invention
Object of the present invention is just to provide that a kind of braking efficiency is high, the hydrodynamic retarder of long service life, failure rate is low.
The object of the invention is by such technological scheme realize, a kind of hydrodynamic retarder, comprise housing and transmission main shaft, wheel rotor and rear wheel rotor before transmission main shaft is provided with, housing is provided with brake tap changer, gear pump and water pump, described gear pump is connected with transmission main shaft, described water pump is connected with gear pump, described front wheel rotor is connected with transmission main shaft by driving wheel flange, rear wheel rotor is connected with transmission main shaft by planet tooth group, describedly uniformly on front wheel rotor is provided with oil inlet hole and oil drainage hole.
Wherein, described front wheel rotor comprises body A, uniformly on the inner side surface of body A is provided with arc shaped blade A, and described oil inlet hole is arranged on the outer camber line center of arc shaped blade A and runs through body A, on the uniform outer being arranged on body A of described oil drainage hole; Described rear wheel rotor comprises body B, is provided with and the transmission external tooth cover of body B one at the center of body B, on body B opposing arcuate blade A inner side surface on be uniformly provided with arc shaped blade B.
In order to improve oil extraction speed, the opening direction of described oil drainage hole is identical with the radian direction of arc shaped blade A, and the number of described arc shaped blade A and arc shaped blade B is 24 ~ 38.
Further describe, described planet tooth group comprises driving gear and is distributed on three planetary pinions engaged outside driving gear and with driving gear, described driving gear to be arranged on transmission main shaft and to be wholely set with transmission main shaft, and described driving gear is positioned at transmission external tooth cover and is engaged with transmission external tooth cover by planetary pinion.
Further, uniformly on the outer side surface of described front wheel rotor be provided with oil-feed reinforced blade, described oil-feed reinforced blade is corresponding with oil inlet hole, and wherein, the angle between described oil-feed reinforced blade and body A is 25o ~ 45o.
In the present invention, described brake tap changer comprises housing B, is provided with independently oil pocket A and the oil pocket B be interconnected and oil pocket C in housing B;
The front of housing B is provided with the external oil drainage hole be communicated with oil pocket C with oil pocket A, oil pocket B respectively, external afterburning oil inlet hole and oil drain out, and all penetrates housing B and be each passed through drain cock and tap changer A, the tap changer B of oil pocket A and oil pocket C;
The active chamber oil drainage hole be communicated with oil pocket A, the oil inlet hole A be communicated with oil pocket B and oil inlet hole B and the relief hole A be communicated with oil pocket C and relief hole B is provided with at the back side of housing B,
Wherein, drain cock is corresponding with active chamber oil drainage hole, tap changer A and tap changer B and relief hole A and relief hole B) corresponding; Separating switch is provided with in described oil pocket B.
Wherein, described separating switch comprises the oil-feed tap changer cover of cross setting, oil-feed tap changer piston, oil-feed tap changer valve and return spring, described oil-feed tap changer cover stretches into housing B and is connected with housing B, described oil-feed tap changer piston is positioned at oil-feed tap changer cover and is connected with one end of oil-feed tap changer valve, the other end of described oil-feed tap changer valve withstands on one end of return spring, and the other end of return spring withstands on the inwall of oil pocket C.
Further, described tap changer A comprises piston valve, spring, piston and tap changer cover, and one end of described piston valve withstands on relief hole A place, the other end penetrates in tap changer cover, described piston is positioned at tap changer cover, and one end penetrates in spring, and described spring is positioned at piston valve; Described drain cock comprises oil extraction piston and drain cock cover, and described row has piston to be positioned at drain cock cover.
In the present invention, described gear pump comprises interconnective gear pump cover and gear pump casing, in gear pump cover, be provided with independently gear shelve chamber and oil inlet passage, shelve in chamber at described gear and be provided with the driving gear and driven gear that outer gearing carries out connecting, shelve in chamber at gear the filler opening being provided with oil outlet and being communicated with oil inlet passage.
Wherein, described filler opening and oil outlet lay respectively at the both sides of driving gear and driven gear engagement place, are separated between described oil outlet and oil inlet passage by shelf.
Further, described oil inlet passage is positioned at gear and shelves outside chamber, and arranges around driving gear, and described oil inlet passage is shelved chamber by baffle plate and gear and separated.
In order to strengthen the intensity of gear pump cover, in oil inlet passage, be evenly equipped with stiffening rib.
In order to utilize excess power, driven gear is provided with transmission shaft, described driven gear and transmission shaft are integrated setting.
In the present invention, described gear pump casing is provided with external oil inlet hole, external oil drainage hole, gear pump oil inlet hole and gear pump oil drainage hole, described external oil inlet hole is communicated with gear pump oil inlet hole, described external oil drainage hole is communicated with gear pump oil drainage hole, described gear pump oil inlet hole is communicated with oil inlet passage, and described gear pump oil drainage hole is communicated with oil outlet.
In the present invention, described water pump comprises transmission main shaft bearing cooler and water pump body, described water pump body is connected on the exterior edge face of transmission main shaft bearing cooler, in transmission main shaft bearing cooler, be provided with cooling water channel, and this cooling water channel is communicated with water pump body.
Wherein, described transmission main shaft bearing cooler comprises interconnective cooling lid A and cooling lid B, transmission main shaft mounting hole is provided with at the center of cooling lid A and cooling lid B, described cooling water channel is separately positioned in cooling lid A and cooling lid B, and cooling lid A is provided with the water intake running through cooling lid A and water outlet.
Further, described water pump body comprises interconnective water pump lid A and water pump lid B, described water pump lid B is connected with the exterior edge face of cooling lid A, water pump lid B is provided with placed cavity, the water pump vane with transmission shaft is provided with in placed cavity, described transmission shaft is successively through water pump lid B, cooling lid A and cooling lid B, and described cooling water channel is communicated with placed cavity.
Owing to have employed technique scheme, the present invention has reasonable in design, braking efficiency is high, reliability is strong advantage, and meanwhile, the present invention also has following advantage:
1. the present invention is by the contrary rotation of front wheel rotor and rear wheel rotor, and improve the efficiency of cutting liquid force feed, make the eddy current produced during cutting have larger reaction force, braking efficiency is higher.
2. the present invention has set up oil-feed reinforced blade on front wheel rotor, makes the time decreased of the eddy current maximum strength produced in front wheel rotor and rear wheel rotor, effectively improves the intensity of eddy current;
3. the opening direction of oil drainage hole of the present invention is identical with the radian direction of arc shaped blade A, after making work complete, does not have resistance during oil extraction, substantially increases oil extraction speed;
4., due to rear wheel rotor individual components, not only manufacture simple, and manufacture cost is also lower;
5. in the present invention, front wheel rotor and rear wheel rotor are individual components, when rotating on the contrary, can not can produce reaction force, extend the working life of housing to housing.
6. brake tap changer of the present invention it can carry out fuel feeding to retarder fast, improve sensitivity and reaction velocity, make brake steadily, meanwhile, due to return spring moderate length, prevent the generation of spring stuck phenomenon, make stable working state, failure rate is low.
7. gear pump of the present invention not only can reduce the temperature of hydraulic oil in gear pump, extend the working life of hydraulic oil, and, because driving gear and driven gear are all contactless with gear pump cover, do not there are wearing and tearing during work, substantially prolongs working life, and, driving gear and driven gear are standard piece, and making and installation is convenient, reduces cost.
8. water pump of the present invention not only can be lowered the temperature to the bearing on the transmission main shaft of hydrodynamic retarder, and can also the hydraulic oil in hydrodynamic retarder oiling pump be lowered the temperature, extend the working life of bearing on transmission main shaft and hydraulic oil, simultaneously, adopt mechanical energy as power, make pump working have more stability.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the forward and backward wheel rotor structural representation of the present invention;
Fig. 3 is the front elevation of front wheel rotor of the present invention;
Fig. 4 is the rear perspective view of Fig. 3;
Fig. 5 is the front elevation of rear wheel rotor of the present invention;
Fig. 6 is the rear wheel rotor structural drawing with planet tooth group;
Fig. 7 is brake tap changer structural representation of the present invention;
Fig. 8 is the rear view of Fig. 7;
Fig. 9 is the plan view of Fig. 7;
Figure 10 is the A-A sectional block diagram of Fig. 9;
Figure 11 is the B-B sectional view of Fig. 7;
Figure 12 is the C-C sectional view of Fig. 7;
Figure 13 is the D-D sectional view of Fig. 7;
Figure 14 is gear pump cover structural representation of the present invention;
Figure 15 is gear pump casing structural representation of the present invention;
Figure 16 is the stereogram of Figure 14.
Embodiment
Be described in further detail the specific embodiment of the present invention below in conjunction with accompanying drawing, but the present invention is not limited to these mode of executions, any improvement or alternative on the present embodiment essence spirit, still belongs to the claims in the present invention scope required for protection.
Embodiment 1: as shown in Fig. 1,2,3,4,5,6, a kind of hydrodynamic retarder, comprise housing 1 and transmission main shaft 2, wheel rotor 3 and rear wheel rotor 4 before transmission main shaft 2 is provided with, housing 1 is provided with brake tap changer, gear pump and water pump, described gear pump is connected with transmission main shaft, described water pump is connected with gear pump, described front wheel rotor 3 is connected with transmission main shaft 2 by driving wheel flange 5, rear wheel rotor 4 is connected with transmission main shaft 2 by planet tooth group, describedly uniformly on front wheel rotor 3 is provided with oil inlet hole 6 and oil drainage hole 7.
Wherein, above-mentioned front wheel rotor 3 comprises body A8, uniformly on the inner side surface of body A8 be provided with arc shaped blade A9, described oil inlet hole 6 is arranged on the outer camber line center of arc shaped blade A9 and runs through body A8, on the uniform outer being arranged on body A8 of described oil drainage hole 7; Described rear wheel rotor 4 comprises body B10, is provided with and the transmission external tooth cover 11 of body B10 one at the center of body B10, on body B10 opposing arcuate blade A9 inner side surface on be uniformly provided with arc shaped blade B12.
In order to make the present invention after having worked, resistance is not had in oil extraction process, can carry out oil extraction fast, the opening direction of described oil drainage hole 7 is identical with the radian direction of arc shaped blade A9, and the number of described arc shaped blade A9 and arc shaped blade B12 is 24 ~ 38.
Further describe, described planet tooth group comprises driving gear 13 and is distributed on three planetary pinions 14 engaged outside driving gear 13 and with driving gear 13, described driving gear 13 to be arranged on transmission main shaft 2 and to be wholely set with transmission main shaft 2, and described driving gear 13 is positioned at transmission external tooth cover 11 and is engaged with transmission external tooth cover 11 by planetary pinion 14.
In order to make front wheel rotor 2 and rear wheel rotor 3 when rotating on the contrary, the eddy current produced reaches the time decreased of maximum strength, and the effective intensity improving eddy current, uniformly on the outer side surface of described front wheel rotor 3 be provided with oil-feed reinforced blade 15, described oil-feed reinforced blade 15 is corresponding with oil inlet hole 6, in order to make better effects if, the angle between described oil-feed reinforced blade 15 and body A8 is 25o ~ 45o.
Impeller of the present invention is work like this: front wheel rotor 3 is combined with the arc shaped blade A9 on rear wheel rotor 4 and arc shaped blade B12, two impellers are all connected on transmission main shaft 2, front wheel rotor 3 is directly connected with transmission main shaft 2, front wheel rotor 3 sense of rotation is identical with transmission main shaft 2, driving gear 13 outer gearing of rear wheel rotor 4 in planet tooth group and transmission main shaft 2, carry out transmission work, rear wheel rotor 4 and transmission main shaft 2 counter-rotation, because the problem of planet tooth, rear wheel rotor 4 is taken turns slowly than forward movable vane 3, before making, rear wheel rotor 3, 4 eddy current generation reaction force to transmission main shaft to play braking action in positive and negative cutting active chamber.
As shown in Fig. 7,8,9,10,11,12,13, in the present invention, brake tap changer comprises housing B16, is provided with independently oil pocket A17 and the oil pocket B18 be interconnected and oil pocket C19 in housing B16;
The front of housing B16 is provided with the external oil drainage hole 20 be communicated with oil pocket C19 with oil pocket A17, oil pocket B18 respectively, external afterburning oil inlet hole 21 and oil drain out 23, and all penetrates housing B16 and be each passed through drain cock 24 and tap changer A25, the tap changer B26 of oil pocket A17 and oil pocket C19;
The active chamber oil drainage hole 27 be communicated with oil pocket A17, the oil inlet hole A28 be communicated with oil pocket B18 and oil inlet hole B29 and the relief hole A30 be communicated with oil pocket C19 and relief hole B31 is provided with at the back side of housing B16,
Wherein, drain cock 24 is corresponding with active chamber oil drainage hole 27, and tap changer A25 is corresponding with relief hole A30 and relief hole B31 with tap changer B26; Separating switch 32 is provided with in described oil pocket B18.
Wherein, described separating switch 32 comprises the oil-feed tap changer cover 33 of cross setting, oil-feed tap changer piston 34, oil-feed tap changer valve 35 and return spring 36, described oil-feed tap changer cover 33 stretches into housing B16 and is connected with housing B16, described oil-feed tap changer piston 34 is positioned at oil-feed tap changer cover 33 and is connected with one end of oil-feed tap changer valve 35, the other end of described oil-feed tap changer valve 35 withstands on one end of return spring 36, and the other end of return spring 36 withstands on the inwall of oil pocket C19.
Further, described tap changer A25 comprises piston valve 37, spring 38, piston 39 and tap changer cover 40, one end of described piston valve 37 withstands on relief hole A30 place, the other end penetrates in tap changer cover 40, described piston 39 is positioned at tap changer cover 40, and one end penetrates in spring 38, described spring 38 is positioned at piston valve 37.
Further, described drain cock 24 comprises oil extraction piston 41 and drain cock cover 42, and described oil extraction piston 41 is positioned at drain cock cover 42.
This brake tap changer is work like this: oil drain out 23, oil inlet hole B29, relief hole A30, relief hole B31, external afterburning oil inlet hole 21 are all communicated with external heat radiation fuel tank with external oil drainage hole 20;
Oil inlet hole A28 is communicated with the active chamber oil inlet hole of retarder; Active chamber oil drainage hole 27 is communicated with the oil drainage hole of the active chamber of retarder;
When the present invention brake tap changer do not work time, separating switch 32 and drain cock 24 do not work, and now, tap changer A25, tap changer B26, relief hole A30 and relief hole B31 all close, can not outside draining; Oil in external heat radiation fuel tank enters in oil pocket B18 through oil inlet hole B29, and now oil-feed tap changer piston 34 is opened, and makes oil be expelled back into again in external heat radiation fuel tank by oil pocket B18 from the oil drain out 23 of oil pocket C19, is so just formed and circulates.
Brake tap changer of the present invention is work like this: separating switch 32 and drain cock 24 work; Oil in external heat radiation fuel tank enters in oil pocket B18 through oil inlet hole B29, now, separating switch 32 works, oil-feed tap changer piston 34 is closed, oil pocket B18 and oil pocket C19 closes, working oil can only enter in the active chamber of retarder by oil inlet hole A28, makes retarder play slow effect.
When needs pressurize to retarder, the active chamber by external afterburning oil inlet hole 21 pairs of retarders pressurizes; Working oil enters in oil pocket B18 by external afterburning oil inlet hole 21, and because oil pocket B18 and oil pocket C19 closes, now, the oil inlet hole A28 of this working oil by being communicated with oil pocket B18, pressurizes to retarder in the active chamber entering into retarder.
When pressure is excessive, pressure in its active chamber be greater than tap changer A25 or/and tap changer B26 time, tap changer A25 is or/and tap changer B26 opens, and working oil is by relief hole A30 or/and relief hole B31 discharges, and the oil drain out 23 through oil pocket C19 is discharged in external heat radiation fuel tank.
After retarder work completes, separating switch 32 and drain cock 24 do not work, oil extraction piston 41 in drain cock 24 is opened, working oil in retarder (deletion) active chamber enters into oil pocket A17 through active chamber oil drainage hole 27, is entered in external heat radiation fuel tank dispel the heat by the external oil drainage hole 20 be communicated with oil pocket A17; Simultaneously, the oil-feed tap changer piston 34 of separating switch 32 is opened, oil pocket B18 is communicated with oil pocket C19, working oil in external heat radiation fuel tank enters in oil pocket C19 through the oil inlet hole B29 of oil pocket B18, be expelled back into again in external heat radiation fuel tank by oil pocket C19 from oil drain out 23, now, tap changer A25 and tap changer B26 all closes, relief hole A30 and relief hole B31 can not leak working oil, can only be discharged to external heat radiation fuel tank carry out circulation cooling by oil drain out 23.
As shown in Figure 14,15,16, gear pump of the present invention comprises interconnective gear pump cover 43 and gear pump casing 44, in gear pump cover 43, be provided with independently gear shelve chamber 45 and oil inlet passage 46, shelve in chamber 45 at described gear and be provided with the driving gear 47 and driven gear 48 that outer gearing carries out connecting, shelve in chamber 45 at gear the filler opening 50 being provided with oil outlet 49 and being communicated with oil inlet passage 46.
Wherein, above-mentioned filler opening 50 and oil outlet 49 lay respectively at the both sides of driving gear 47 and driven gear 48 engagement place, are separated between described oil outlet 49 and oil inlet passage 46 by shelf 51; Described oil inlet passage 46 is positioned at gear and shelves outside chamber 45, and arranges around driving gear 47, and described oil inlet passage 46 is shelved chamber 45 by baffle plate 52 and gear and separated.
In order to strengthen the intensity of gear pump cover, increasing the service life, in oil inlet passage 46, being evenly equipped with stiffening rib 53.
Wherein, driven gear 48 is provided with transmission shaft 54, described driven gear 48 is integrated setting with transmission shaft 54, do like this and not only can provide power for the water pump on hydrodynamic retarder, and transmission shaft 54 can be connected electricity generating device and generate electricity, and as the power source of other devices, unnecessary power can be saved.
Further describe gear pump cover structure, described gear pump casing 44 is provided with external oil inlet hole 55, external oil drainage hole 56, gear pump oil inlet hole 57 and gear pump oil drainage hole 58, described external oil inlet hole 55 is communicated with gear pump oil inlet hole 57, described external oil drainage hole 56 is communicated with gear pump oil drainage hole 58, described gear pump oil inlet hole 57 is communicated with oil inlet passage 46, and described gear pump oil drainage hole 58 is communicated with oil outlet 49.
Gear pump of the present invention is like this work: driving gear 47 is connected with transmission main shaft 2, and transmission main shaft 2 provides power for driving gear 47, and meanwhile, gear pump casing 44 is connected with the water pump on hydrodynamic retarding.
Hydraulic oil enters through external oil inlet hole 55, enter in oil inlet passage 46 through gear pump oil inlet hole 57, hydraulic oil flows along oil inlet passage 46, entering into gear by filler opening 50 shelves in chamber 45, driving gear 47 rotates under the drive of transmission main shaft 2, the driving gear 47 rotated drives driven gear 48 to rotate, so just serve the effect of pump oil, pressurized hydraulic oil is again successively by oil outlet 49, gear pump oil drainage hole 58 and external oil drainage hole 56 are discharged, such circulation, by the water of water pump, heat exchange is carried out to hydraulic oil, hydraulic oil is made also to serve the effect of cooling.
Water pump of the present invention comprises transmission main shaft bearing cooler and water pump body, described water pump body is connected on the exterior edge face of transmission main shaft bearing cooler, in transmission main shaft bearing cooler, be provided with cooling water channel 59, this cooling water channel 59 is communicated with water pump body.
Wherein, above-mentioned transmission main shaft bearing cooler comprises interconnective cooling lid A60 and cooling lid B61, transmission main shaft mounting hole 62 is provided with at the center of cooling lid A60 and cooling lid B61, described cooling water channel 59 is separately positioned in cooling lid A60 and cooling lid B61, and cooling lid A60 is provided with the water intake 63 running through cooling lid A60 and water outlet 64.
Above-mentioned water pump body comprises interconnective water pump lid A65 and water pump lid B66, described water pump lid B66 is connected with the exterior edge face of cooling lid A60, water pump lid B66 is provided with placed cavity 67, the water pump vane 69 with transmission shaft 54 is provided with in placed cavity 67, described transmission shaft 54 is successively through water pump lid B66, cooling lid A60 and cooling lid B61, and described cooling water channel 59 is communicated with placed cavity 67.
Water pump of the present invention is such work: first will cool lid A60 and be installed on the transmission main shaft 2 of hydrodynamic retarder with cooling lid B61 by transmission main shaft mounting hole 62 and the bearing being positioned at transmission main shaft mounting hole 62, be connected with the oil pump on hydrodynamic retarder by cooling lid B61, be connected with a joggle the driving gear 47 of the oil pump on the other end of transmission shaft 54 and hydrodynamic retarder formation entirety simultaneously; During work, the transmission main shaft 2 of hydrodynamic retarder drives the driving gear 47 of oil pump to rotate, driving gear 47 drives driven gear 48 to rotate, driven gear 48 drives transmission shaft 54 to rotate again, the rotation of transmission shaft 54 drives water pump vane 69 to rotate, thus the water flow in drive water pump, the water circulation in cooling water channel 59 is flowed, and the water circulated just takes bearing and the heat of the hydraulic oil in oil pump the external heat radiation case be connected with water intake 63 and water outlet 64 to and dispels the heat.
Claims (17)
1. a hydrodynamic retarder, comprise housing (1) and transmission main shaft (2), transmission main shaft (2) is provided with front wheel rotor (3) and rear wheel rotor (4), housing (1) is provided with brake tap changer, gear pump and water pump, described gear pump is connected with transmission main shaft, described water pump is connected with gear pump, it is characterized in that: described front wheel rotor (3) is connected with transmission main shaft (2) by driving wheel flange (5), rear wheel rotor (4) is connected with transmission main shaft (2) by planet tooth group, uniformly be provided with oil inlet hole (6) and oil drainage hole (7) described front wheel rotor (3) is upper, described front wheel rotor (3) comprises body A(8), at body A(8) inner side surface on be uniformly provided with arc shaped blade A(9), described oil inlet hole (6) is arranged on arc shaped blade A(9) outer camber line center and run through body A(8), described oil drainage hole (7) is uniform is arranged on body A(8) outer on, described rear wheel rotor (4) comprises body B(10), at body B(10) center be provided with and body B(10) the transmission external tooth cover (11) of one, at body B(10) upper opposing arcuate blade A(9) inner side surface on be uniformly provided with arc shaped blade B(12).
2. hydrodynamic retarder as claimed in claim 1, is characterized in that: opening direction and the arc shaped blade A(9 of described oil drainage hole (7)) radian direction identical, and described arc shaped blade A(9) and arc shaped blade B(12) number be 24 ~ 38.
3. hydrodynamic retarder as claimed in claim 2, it is characterized in that: described planet tooth group comprises driving gear (13) and is distributed on driving gear (13) outside and three planetary pinions (14) of engaging with driving gear (13), described driving gear (13) is arranged on transmission main shaft (2) and goes up and be wholely set with transmission main shaft (2), and described driving gear (13) is positioned at transmission external tooth cover (11) and is engaged with transmission external tooth cover (11) by planetary pinion (14).
4. hydrodynamic retarder as claimed in claim 3, is characterized in that: uniformly on the outer side surface of described front wheel rotor (3) be provided with oil-feed reinforced blade (15), and described oil-feed reinforced blade (15) is corresponding with oil inlet hole (6).
5. hydrodynamic retarder as claimed in claim 4, is characterized in that: described oil-feed reinforced blade (15) and body A(8) between angle be 25o ~ 45o.
6. the hydrodynamic retarder as described in claim as arbitrary in claim 1 to 5, it is characterized in that: described brake tap changer comprises housing B(16), at housing B(16) in be provided with independently oil pocket A(17) and the oil pocket B(18 that is interconnected) and oil pocket C(19);
At housing B(16) front on be provided with respectively with oil pocket A(17), oil pocket B(18) with oil pocket C(19) the external oil drainage hole (20), external afterburning oil inlet hole (21) and the oil drain out (23) that are communicated with, and all penetrate housing B(16) and be each passed through oil pocket A(17) and oil pocket C(19) drain cock (24) and tap changer A(25), tap changer B(26);
At housing B(16) the back side be provided with and oil pocket A(17) the active chamber oil drainage hole (27) that is communicated with, with oil pocket B(18) the oil inlet hole A(28 that is communicated with) and with oil inlet hole B(29) and with oil pocket C(19) the relief hole A(30 that is communicated with) and relief hole B(31)
Wherein, drain cock (24) is corresponding with active chamber oil drainage hole (27), tap changer A(25) with relief hole A(30) corresponding, tap changer B(26) with relief hole B(31) corresponding; At described oil pocket B(18) in be provided with separating switch (32).
7. hydrodynamic retarder as claimed in claim 6, it is characterized in that: described separating switch (32) comprises the oil-feed tap changer cover (33) of cross setting, oil-feed tap changer piston (34), oil-feed tap changer valve (35) and return spring (36), described oil-feed tap changer cover (33) stretches into housing B(16) and with housing B(16) be connected, described oil-feed tap changer piston (34) is positioned at oil-feed tap changer cover (33) and is connected with one end of oil-feed tap changer valve (35), the other end of described oil-feed tap changer valve (35) withstands on one end of return spring (36), the other end of return spring (36) withstands on oil pocket C(19) inwall on.
8. hydrodynamic retarder as claimed in claim 7, it is characterized in that: described tap changer A(25) comprise piston valve (37), spring (38), piston (39) and tap changer cover (40), one end of described piston valve (37) withstands on relief hole A(30) place, the other end penetrates in tap changer cover (40), described piston (39) is positioned at tap changer cover (40), and one end penetrates in spring (38), described spring (38) is positioned at piston valve (37).
9. hydrodynamic retarder as claimed in claim 8, it is characterized in that: described drain cock (24) comprises oil extraction piston (41) and drain cock cover (42), described oil extraction piston (41) is positioned at drain cock cover (42).
10. hydrodynamic retarder as claimed in claim 9, it is characterized in that: described gear pump comprises interconnective gear pump cover (43) and gear pump casing (44), in gear pump cover (43), be provided with independently gear shelve chamber (45) and oil inlet passage (46), shelve in chamber (45) at described gear and be provided with the driving gear (47) and driven gear (48) that outer gearing carries out connecting, shelve in chamber (45) at gear the filler opening (50) being provided with oil outlet (49) and being communicated with oil inlet passage (46).
11. hydrodynamic retarders as claimed in claim 10, it is characterized in that: described filler opening (50) and oil outlet (49) lay respectively at the both sides of driving gear (47) and driven gear (48) engagement place, separated by shelf (51) between described oil outlet (49) and oil inlet passage (46); Described oil inlet passage (46) is positioned at gear and shelves outside, chamber (45), and arranges around driving gear (47), and described oil inlet passage (46) is shelved chamber (45) by baffle plate (52) and gear and separated.
12. hydrodynamic retarders as claimed in claim 11, is characterized in that: in oil inlet passage (46), be evenly equipped with stiffening rib (53).
13. hydrodynamic retarders as claimed in claim 12, is characterized in that: on driven gear (48), be provided with transmission shaft (54), and described driven gear (48) and transmission shaft (54) are integrated setting.
14. hydrodynamic retarders as claimed in claim 13, it is characterized in that: in described gear pump casing (44), be provided with external oil inlet hole (55), external oil drainage hole (56), gear pump oil inlet hole (57) and gear pump oil drainage hole (58), described external oil inlet hole (55) is communicated with gear pump oil inlet hole (57), described external oil drainage hole (56) is communicated with gear pump oil drainage hole (58), described gear pump oil inlet hole (57) is communicated with oil inlet passage (46), and described gear pump oil drainage hole (58) is communicated with oil outlet (49).
15. hydrodynamic retarders as claimed in claim 14, it is characterized in that: described water pump comprises transmission main shaft bearing cooler and water pump body, described water pump body is connected on the exterior edge face of transmission main shaft bearing cooler, in transmission main shaft bearing cooler, be provided with cooling water channel (59), this cooling water channel (59) is communicated with water pump body.
16. hydrodynamic retarders as claimed in claim 15, it is characterized in that: described transmission main shaft bearing cooler comprises interconnective cooling lid A(60) and cooling lid B(61), at cooling lid A(60) and cool lid B(61) center be provided with transmission main shaft mounting hole (62), described cooling water channel (59) is separately positioned on cooling lid A(60) and cooling lid B(61) in, at cooling lid A(60) on be provided with to run through cool lid A(60) water intake (63) and water outlet (64).
17. hydrodynamic retarders as claimed in claim 16, it is characterized in that: described water pump body comprises interconnective water pump lid A(65) and water pump lid B(66), described water pump lid B(66) with cooling lid A(60) exterior edge face be connected, at water pump lid B(66) on be provided with placed cavity (67), the water pump vane (69) with transmission shaft (54) is provided with in placed cavity (67), described transmission shaft (54) is successively through water pump lid B(66), cooling lid A(60) and cooling lid B(61), described cooling water channel (59) is communicated with placed cavity (67).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478065.8A CN102943831B (en) | 2012-11-22 | 2012-11-22 | Hydrodynamic retarder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478065.8A CN102943831B (en) | 2012-11-22 | 2012-11-22 | Hydrodynamic retarder |
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| CN102943831A CN102943831A (en) | 2013-02-27 |
| CN102943831B true CN102943831B (en) | 2015-05-20 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773151B (en) * | 2015-03-17 | 2017-07-28 | 吉林大学 | The fill ratio automatic obtaining method and device of Retarder |
| CN105422690A (en) * | 2015-11-30 | 2016-03-23 | 陕西航天动力高科技股份有限公司 | Independent retarder in front of box |
| CN105697607B (en) * | 2016-03-01 | 2018-02-06 | 宁波华盛联合制动科技有限公司 | The Oiltank structure of Retarder |
| CN109179143B (en) * | 2018-09-04 | 2020-10-02 | 中国建筑科学研究院有限公司建筑机械化研究分院 | Emergency manual slow descending device and lifting equipment thereof |
| CN109253188B (en) * | 2018-11-01 | 2020-12-11 | 陕西法士特齿轮有限责任公司 | Integrated hydraulic retarder |
| CN112298140B (en) * | 2020-12-07 | 2021-08-20 | 周春锋 | Hydraulic brake with scraper blade recoverer of scraper blade type hydraulic pump |
| CN113623340B (en) * | 2021-08-13 | 2022-12-13 | 山东泰鑫汽车科技有限公司 | Anti-braking force control mechanism on reinforced hydraulic retarder |
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Effective date of registration: 20190212 Address after: 402247 Shuangfu Industrial Park Demolition and Resettlement Complex Building Area A, Jiangjin District, Chongqing Patentee after: CHONGQING LIGHT TRANSFORM OPTOELECTRONICS CO., LTD. Address before: 402260 Building 13, Phase II, Degan Industrial Park, Jiangjin District, Chongqing Patentee before: Chongqing Jindefu Science & Technology Development Co., Ltd. |
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