CN2427675Y

CN2427675Y - Water medium and speed adjusting type hydrokinetic coupoler

Info

Publication number: CN2427675Y
Application number: CN 00214665
Authority: CN
Inventors: 刘时章
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-15
Filing date: 2000-05-15
Publication date: 2001-04-25
Anticipated expiration: 2010-05-15

Abstract

The utility model relates to a water medium speed regulating type hydraulic coupling. A guide pipe housing and a bearing seat are connected with a box body; a pump wheel and a turbine wheel are separately connected with an input shaft and an output shaft; an end port of the pump wheel is provided with a cover plate; a liquid inlet cavity of the guide pipe housing with a water inlet is communicated with a working cavity of the pump wheel; a guide pipe penetrates into the guide pipe housing and extends to a water discharging cavity of the pump wheel; the input shaft and the output shaft are respectively supported on the guide pipe housing and the bearing seat; the shaft outlet ends of the guide pipe housing and the bearing seat are both provided with sealing elements. The utility model thoroughly solves the problem of oil leakage, omits oil pumps and coolers, and has the advantage of low cost of the coupling.

Description

The aqueous medium variable speed fluid coupling

The utility model relates to variable speed fluid coupling, specifically a kind of aqueous medium variable speed fluid coupling.

Existing variable speed fluid coupling mostly adopts oil as working medium, by the active chamber fuel feeding of oil pump to pump impeller and turbine, stretch by conduit and to regulate liquid level in the pump impeller active chamber, working solution is discharged by conduit, and through cooler cooling back by the oil pump pump to active chamber, so circulate.The bearing of oil medium variable speed fluid coupling input shaft and the bearing of output shaft structurally exist the relation of mutual support, and it is all lubricated with working oil, exist complex structure, the sealing of pto input shaft supporting place is not good, easy oil leakage (incompatibility underground work), deficiencies such as insufficient are isolated in the vibration of input shaft and output shaft, and oily medium variable speed fluid coupling also need be equipped with oil pump and cooler, and the price of equipment is higher.

The purpose of this utility model is to provide a kind of aqueous medium variable speed fluid coupling, its input shaft and output shaft separate support, and no oil leakage phenomenon, and can save oil pump and cooler.

For achieving the above object, the utility model is improved existing oily medium variable speed fluid coupling, and it is become with water is the variable speed fluid coupling of working medium.The structure of the aqueous medium variable speed fluid coupling that the utility model provides is: conduit housing and bearing support are connected on the casing, pump impeller and turbine positioned opposite and connect with input shaft and output shaft respectively, the port of pump impeller is equipped with cover plate, the admission chamber of conduit housing communicates with the active chamber of pump impeller, conduit penetrates the conduit housing and extends in the drain chamber of pump impeller, input shaft is supported on the conduit housing by bearing, output shaft is supported on the bearing support by bearing, the axle head that goes out of conduit housing and bearing support is equipped with Sealing, and the top of conduit housing has the water intake that communicates with its admission chamber.Its working principle is: water is constantly by the water intake on the conduit housing and enter the active chamber of pump impeller and turbine through its admission chamber, simultaneously, driven by motor input shaft and pump impeller rotation, make working solution high speed rotating and impulse turbine in the pump impeller active chamber, the rotation of drive turbine is rotated output shaft, realizes transmission of power: regulate catheter tube head height degree, can realize the adjusting of working solution liquid level height in pump impeller and the turbine active chamber, and then regulate the rotating speed of output shaft.

By the aqueous medium variable speed fluid coupling of said structure as seen, input shaft, output shaft are respectively by conduit housing and bearing block support, and both do not have direct contact, and the bearing of easy-to-rust and working solution are isolated by Sealing, realize with water being working medium.And input shaft, output shaft be directly contact not, and the vibration during work obtains isolating.Supporting place of input shaft, output shaft sealing can be adopted grease lubrication, and the leakage of oil problem when thoroughly having solved work satisfied the requirement of explosion proof when use the down-hole, and this fluid coupling has been saved oil pump and cooler, and the price of equipment is able to bigger reduction.

Description of drawings:

Fig. 1, the utility model embodiment's one structural drawing;

Fig. 2, the utility model embodiment's two structural drawing.

The utility model is described in further detail below in conjunction with embodiment one and Fig. 1.

Referring to Fig. 1, bearing support 8, conduit housing 2 are connected on the casing 3, and pair of bearings 17 is housed in the conduit housing 2, and input shaft 1 is supported on the two bearings 17, and pair of bearings 10 is housed in the bearing support 8, and output shaft 9 is supported on the bearing 10.For two supported ends that make conduit housing 2 and bearing support 8 are able to better seal, be associated with end cap 18 at the two ends of conduit housing 2, input shaft 1 passes this to end cap 18, seal ring 19 is located at 1 of end cap 18 and input shaft, be associated with end cap 12 at the two ends of bearing support 8, output shaft 9 passes this to end cap 12, and seal ring 11 is located at 9 of end cap 12 and output shafts.Grease lubrication is adopted in supporting place of input shaft 1, output shaft 9.Pump impeller 5 and turbine 6 positioned opposite, promptly both active chambers are relative, and pump impeller 5 is coupled on the input shaft 1, turbine 6 is coupled on the output shaft 9.Port at pump impeller 5 is equipped with cover plate 7.Water intake 20 is opened in the top of conduit housing 2 and with its admission chamber 25 and is communicated, have water intake 16 and water outlet 14 on the pump impeller 5, by the active chamber 13 of water intake 16 UNICOM's pump impellers 5 and the admission chamber of conduit housing 2, by the active chamber 13 and the drain chamber 15 of water outlet 14 UNICOM's pump impellers 5.The conduit 4 that is used for draining penetrates in the drain chamber 15 that conduit housing 2 extends pump impeller 5, by regulating the height and position of conduit 4 upper ends, realizes the adjusting of working solution liquid level heights in pump impeller 5 active chambers 13, thereby regulates the rotating speed of output shaft.

Embodiment two, referring to Fig. 2.Among Fig. 2, casing 3 is a tubular, and the external frame of casing 3 is provided with gusset 22, and casing 3 is connected with a cover tube 21 with an end of input shaft 1 homonymy, constitutes cover cartridge type aqueous medium variable speed fluid coupling.Cover cartridge type variable speed fluid coupling is not have to be connected between motor and the retarder with supporting.Existing cover cartridge type variable speed fluid coupling, its cover tube is an integral body, the cover jacket casing is in the outside of coupler, cover tube outer installment has gusset to strengthen its intensity, but it is many more that the height of gusset strengthens, the outside dimension of cover tube also big more (need, the internal diameter of integrated type cover tube should greater than the maximum outside diameter of coupler revolving part) because of installing.Because the flange size of motor, retarder is fixed, the height increase that the cover tube is gone up gusset can be restricted, thereby the rigidity of integrated type cover tube is not good.In the present embodiment, cover tube 21 is connected an end of casing 3, with cover tube 21 internal diameters that motor connects can be less than the maximum outside diameter of coupler revolving part, like this, under same outside dimension, (compare) with integrated type cover tube, the height of its gusset 24 can increase bigger, is satisfying under the hard conditions, and cover cartridge type variable speed fluid coupling is taken up space less.In addition, be the axial dimension of shortening output shaft, to shorten the cantilever after cover cartridge type variable speed fluid coupling and speed reducer connect, the output shaft 9 of this cover cartridge type variable speed fluid coupling is a hollow shaft, and the speed reducer shaft extension is both connections of back in the hole 23 of output shaft 9.

Claims

1, the aqueous medium variable speed fluid coupling, conduit housing (2) and bearing support (8) are connected on the casing (3), pump impeller (5) and turbine (6) positioned opposite and connect with input shaft (1) and output shaft (9) respectively, the port of pump impeller (5) is equipped with cover plate (7), the admission chamber (25) of conduit housing (2) communicates with the active chamber (13) of pump impeller (5), conduit (4) penetrates conduit housing (2) and extends in the drain chamber (15) of pump impeller (5), it is characterized in that: input shaft (1) is supported on the conduit housing (2) by bearing (17), output shaft (9) is supported on the bearing support (8) by bearing (10), the axle head that goes out of conduit housing (2) and bearing support (8) is equipped with Sealing, and the top of conduit housing (2) has the water intake (20) that communicates with its admission chamber (25).

2, aqueous medium variable speed fluid coupling according to claim 1, it is characterized in that: described Sealing is made up of end cap and seal ring, two ends, input shaft (1) that a pair of end cap (18) is associated in conduit housing (2) pass this to end cap (18), seal ring (19) is located between end cap (18) and input shaft (1), another passes this to end cap (12) to two ends, the output shaft (9) that end cap (12) is connected in bearing support (8), and seal ring (11) is located between end cap (12) and output shaft (9).

3, aqueous medium variable speed fluid coupling according to claim 1, it is characterized in that: casing (3) is tubular, the external frame of casing (3) is provided with gusset (22), and casing (3) is connected with a cover tube (21) with an end of input shaft (1) homonymy, and output shaft (9) is a hollow shaft.