CN2359341Y - Crab-bucket dredging device vith adjustable clutch - Google Patents

Abstract

The utility model relates to a crab-bucket dredging device with an adjustable clutch, which comprises a diesel engine, a torque converter, a grab claw and the additional adjustable clutch, wherein, the adjustable clutch is installed between an output shaft of the diesel engine and an input shaft of the torque converter through a shaft coupling, and can carry out stepless speed regulation, so that the rotary speed input of a hydrodynamic torque converter is adjustable. Even when the rotary speed input of a pump wheel in the torque converter changes, a corresponding tuft of output characteristic curves of the torque converter can be obtained when the rotary speed of the pump wheel is different, and the capacity of the torque converter is increased, so that the grab claw can be reasonably matched with the diesel engine in different working conditions.

Description

Grab type dredger with adjustable clutch

The utility model relates to a kind of grab type dredger, more particularly, is relevant a kind of grab type dredger that is provided with adjustable clutch.

At present, diesel engine and grab claw coupling is not good to cause that the serious imbalance of their work and the burning of diesel engine degenerate etc. in order to solve in the grab type dredger, usually taked two kinds of methods: a kind of is to install between diesel engine and grab claw or connect a fluid torque-converter, to utilize fluid torque-converter output torque that can form, fluid torque-converter in design and manufacturing to adapt to the grab claw load variations with the so-called efficient district of grab claw rotation speed change, but, efficient district has only one, and its scope is not very big.In actual motion, because of load variations in each operating mode of grab claw is very big, tend to break away from the work of efficient district, cause the damage of grab type dredger each several part, be very uneconomic.Another kind is to refill a gearbox on the said structure basis between fluid torque-converter and grab claw, to enlarge the efficient district scope of fluid torque-converter, but this need handle gearbox continually and carry out gear shift, but the gear of gearbox is also few, and according to the gear shift in seconds of grab claw load variations speed for several times, also be difficult in the operation realize.

The purpose of this utility model is to be to provide a kind of grab type dredger with adjustable clutch, this grab type dredger can make the input speed of diesel engine output speed or fluid torque-converter change by adjustable clutch is set, and what change fluid torque-converter can hold and reach that diesel engine and grab claw can both rationally be mated under each grade operating mode.

The technical solution of the utility model is such, a kind of grab type dredger with adjustable clutch comprises diesel engine, torque-converters, grab claw, wherein, also contain an adjustable clutch, it is installed between the power shaft of the output shaft of diesel engine and torque-converters by shaft coupling.

Grab type dredger as previously discussed, wherein, adjustable clutch comprises that the piston that a casing, a power shaft, an output shaft, an external toothing, some rotating plates and driven disc and are made up of hydraulic jack, piston and spring pays, wherein, power shaft is the multidiameter that contains fuel feed hole, is installed in the axis hole of casing one side; Output shaft is the splined shaft that contains fuel feed hole, is installed in the axis hole of the relative opposite side of casing; External toothing is the cylinder with inner spline groove, is installed in the casing in the mode that is sleeved on the input and output axle; Some rotating plates are provided with the external splines groove, by spline in conjunction with and with uniformly-spaced the distance be installed in the external toothing, some driven discs are provided with inner spline groove, by spline in conjunction with and be installed on the output shaft with distance uniformly-spaced, and make rotating plate and driven disc leave certain interval alternately and each other; The hydraulic jack that described piston is paid is the disk body that contains shoulder hole, be sleeved on the power shaft and its rear end and external toothing sidewall are tightly connected, piston is a ring-type, be installed in the hydraulic jack and also be set in power shaft slidably, make the fuel feed hole of power shaft can be communicated with hydraulic jack shoulder hole and piston space simultaneously; The fuel feed hole of output shaft can be communicated with space between external toothing and output shaft, and spring is installed between power shaft and the output shaft opposite end.

Grab type dredger as previously discussed, wherein, described external toothing is provided with some uniform radial holes on side face.

Grab type dredger as previously discussed, wherein, the fuel feed hole of described output shaft comprises that a main oil-hole that is positioned at its center is positioned on the side face relative with the external toothing inwall and the secondary oilhole that is communicated with this main oil-hole with some.

Grab type dredger as previously discussed, wherein, rotating plate is a steel plate, driven disc is, and to be that steel plate and its are outer by inner core be laid with the composite sheet that the paper material layer constitutes.

Grab type dredger as previously discussed, wherein, driven disc is by the steel plate of inner core and its externally sintered composite sheet that has alloy material layer to constitute.

Grab type dredger as previously discussed, wherein, the used steel plate of rotating plate and driven disc is the 65Mn steel plate.

Because the grab type dredger is tipping one adjustable clutch between the power shaft of the output shaft of diesel engine and torque-converters, can make the constant speed running of diesel engine output drive to fluid torque-converter by adjustable clutch, and change the rotating speed infinitely variable into, just make the rotating speed of the pump impeller in the input fluid torque-converter that variation has taken place, under the different rotating speed of pump impeller, can obtain the output characteristic curve of cluster fluid torque-converter, and improve it and can hold, can both rationally mate with diesel engine under each grade operating mode to satisfy grab claw, in addition, the rotating plate of adjustable clutch is a steel plate, driven disc is by steel plate and the composite sheet that constitutes at its external application paper material layer, can make the master, driven disc produces slip under oil film action, increase the reliability of speed governing.

Fig. 1 is the each several part connection diagram of a grab type dredger of the present utility model;

Fig. 2 is the structure sectional view of adjustable clutch in the grab type dredger of a Fig. 1;

Fig. 3 be one under different operating modes the output characteristic curve of fluid torque-converter.

See also shown in Fig. 1 and 2, grab type dredger with adjustable clutch of the present utility model comprises diesel engine 1, torque-converters 2, adjustable clutch 3 and grab claw 4, wherein, adjustable clutch 3 is installed between the power shaft of the output shaft of diesel engine and torque-converters by shaft coupling 5,6.Adjustable clutch can adopt various forms of variable-speed clutches, and recommendation herein is a kind of adjustable clutch 3 of hydraulic pressure chip.

Adjustable clutch 3 comprises that the piston that a casing 31, a power shaft 32, an output shaft 33, an external toothing 34, some rotating plates 35 and driven disc 36 and are made up of hydraulic jack 37, piston 38 and spring 39 pays, wherein, casing 31 is made up of base and flap and is which is provided with axle bed hole or axis hole, can store fluid 310 in the base;

Power shaft 32 is a multidiameter, and this power shaft has the fuel feed hole 321 of import and outlet at the middle part, and it can be installed in the axis hole of casing 31 1 sides by bearing;

Output shaft 33 also is a multidiameter, and this output shaft contains the splined shaft of fuel feed hole, and fuel feed hole comprises that one is positioned at secondary oilhole 332 set and that be communicated with this main oil-hole on the main oil-hole 331 at its axle portion center and the some shaft head side faces that is positioned at relatively large diameter.Output shaft 33 can be installed in the axis hole of casing 31 opposite sides by bearing;

External toothing 34 is a cylinder, be inserted with some inner spline grooves with slotting machine in it, axial distance at certain intervals is provided with some uniform radial holes 341 on its perisporium, aperture can play the effect of draining heat radiation, and external toothing 34 is installed in the casing 31 and the compartment of terrain is placed on power shaft 32 and the output shaft 33;

Rotating plate 35 respectively is an annular, and its outer peripheral face is provided with the external splines groove, and combines with the inner spline groove of external toothing 34 and with being installed in the external toothing 34 of distance uniformly-spaced by this external splines groove;

Driven disc 36 respectively is an annular, its endoporus is provided with inner spline groove, and driven disc 36 combines with the external splines of output shaft 33 by this inner spline groove and be installed in output shaft 33 with range range mode uniformly-spaced, and make rotating plate 35 and driven disc 36 leave certain interval alternately and each other;

Hydraulic jack that described piston is paid 37 is for containing the disk body of shoulder hole, is sleeved on the power shaft 32 and its rear end and external toothing 34 sidewalls are tightly connected; Piston 38 for ring-type, be nested with on the power shaft 32 and between hydraulic jack 37 and output shaft 33, the outlet of the fuel feed hole of power shaft 32 can be communicated with in the space between hydraulic jack 37 (its shoulder hole) and the piston 38, so that the oil pressurization that enters space between hydraulic jack 37 and the piston 38 from fuel feed hole, spring 39 is installed between power shaft 32 and output shaft 33 opposite ends near piston 38 and mode that can relativity.In addition, on output shaft 33, go back suit one dish type bonnet 40, this bonnet and the sidewall of external toothing 34 be tightly connected.

On the other hand, driven disc 36 is outer steel plate or externally sintered composite sheet that have the alloy material layer steel plate to make that are laid with the paper material layer, and rotating plate 36 is directly made with steel plate, and best rotating plate and the used steel plate of driven disc are the 65Mn steel plate.

Please consult shown in Figure 2 again, fluid can be by output shaft 33 main oil-hole 331 and secondary oilhole 332 input external toothings 34 and bonnet 40 space of being enclosed and be filled in rotating plate 35 and 36 of driven discs, hydraulic oil can enter the space between hydraulic jack 37 and the piston 38 by the fuel feed hole 321 of power shaft 32, to promote piston 38, so, adjustable clutch 3 utilizes the different thrust of piston 3 and makes the hydraulic oil oil film of 36 of rotating plate 35 and driven discs change the different shearing forces produced to change rotating speed, its speed ratio optionally changes from 0-100%, thereby the rotating speeds such as input of torque-converters 2 are changed, to have changed holding of torque-converters.

See also shown in Figure 3ly, under the constant situation of adjustable clutch 3 input speeds (diesel engine speed), output speed changes, and the pump impeller rotating speed generation respective change of torque-converters can obtain the torque-converters output characteristic curve of cluster under different rotating speeds, N among the figure simultaneously ₂Be torque-converters output speed, M ₁, M ₁＇, M ₁" the pump impeller moment of torsion when being respectively different rotating speeds, M ₂, M ₂＇, M ₂" being the respective turbine moment of torsion, η, η ＇, n " is respectively the efficient that above-mentioned transfer torque changes.As seen from the figure, in each operating mode, this torque-converters output characteristics can satisfy the required reasonable coupling of diesel engine 1 and grab claw 4, also provides best power source for grab claw.

Claims (7)

1. the grab type dredger with adjustable clutch comprises diesel engine, torque-converters, grab claw, it is characterized in that: also contain an adjustable clutch, it is installed between the power shaft of the output shaft of diesel engine and torque-converters by shaft coupling.

2. grab type dredger according to claim 1, it is characterized in that: adjustable clutch comprises that the piston that a casing, a power shaft, an output shaft, an external toothing, some rotating plates and driven disc and are made up of hydraulic jack, piston and spring pays, wherein, power shaft is the multidiameter that contains fuel feed hole, is installed in the axis hole of casing one side; Output shaft is the splined shaft that contains fuel feed hole, is installed in the axis hole of the relative opposite side of casing; External toothing is the cylinder with inner spline groove, is installed in the casing in the mode that is sleeved on the input and output axle; Some rotating plates are provided with the external splines groove, by spline in conjunction with and with uniformly-spaced the distance be installed in the external toothing, some driven discs are provided with inner spline groove, by spline in conjunction with and be installed on the output shaft with distance uniformly-spaced, and make rotating plate and driven disc leave certain interval alternately and each other; The hydraulic jack that described piston is paid is the disk body that contains shoulder hole, be sleeved on the power shaft and its rear end and external toothing sidewall are tightly connected, piston is a ring-type, be installed in the hydraulic jack and also be set in power shaft slidably, make the fuel feed hole of power shaft can be communicated with hydraulic jack shoulder hole and piston space simultaneously; The fuel feed hole of output shaft can be communicated with space between external toothing and output shaft, and spring is installed between power shaft and the output shaft opposite end.

3. grab type dredger according to claim 2 is characterized in that, the external toothing of described adjustable clutch is provided with some uniform radial holes on side face.

4. grab type dredger according to claim 2, it is characterized in that the fuel feed hole of the output shaft of described adjustable clutch comprises that a main oil-hole that is positioned at its center is positioned on the side face relative with the external toothing inwall and the secondary oilhole that is communicated with this main oil-hole with some.

5. grab type dredger according to claim 2 is characterized in that: the rotating plate of described adjustable clutch is a steel plate, and driven disc is, and to be that steel plate and its are outer by inner core be laid with the composite sheet that the paper material layer constitutes.

6. grab type dredger according to claim 2 is characterized in that, described driven disc is by the steel plate of inner core and its externally sintered composite sheet that has alloy material layer to constitute.

7. according to claim 5 or 6 described grab type dredgers, it is characterized in that: the used steel plate of rotating plate and driven disc is the 65Mn steel plate.

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