CN2839741Y - Large power electric control clutch mechanism - Google Patents

Abstract

The utility model discloses a large power electric control clutch device which mainly comprises a gear splitter box (1), coupling shafts (2 and 3), a planetary gear mechanism (4) and an electromagnetic clutch (5), wherein the gear splitter box (1) is matched and connected with a gear ring of the planetary gear mechanism (4) through the coupling shaft (2); the gear splitter box (1) is matched and connected with a sun wheel of the planetary gear mechanism (4) through the coupling shaft (3) which can control the engagement and the cut of dynamic force through the electromagnetic clutch (5). Only the device adopts a low power electromagnetic clutch, the engagement and the cut of the large power dynamic force can be realized; the automatic control is easy to realize. The device can be used for occasions of automobiles, engineering machine, machine tools, etc. with complex change of operating condition of dynamic force transmission and high transmitting torque and rotating speed.

Description

The large power electric control clutch device

Technical field

The utility model relates to mechanical transmissioning technology field, particularly automobile, engineering machinery, lathe etc. and needs to engage automatically and the large power electric control clutch and the device that cut off transmission of power.

Background technique

For transmission of power, the occasion of especially high-power transmission of power, the joint of power is absolutely necessary with cutting off control, or even very frequent.Current, general working power joint and cutting control device mainly contain two kinds of friction disk type mechanical clutch and magnetic clutchs on the market.The transmission of power of motor is used common friction disk type mechanical clutch basically on the automobile, only uses magnetic clutch in small-power occasions such as air condition compressor, radiator fans.But mechanical clutch is difficult to realize automatic control; And magnetic clutch is because the restriction that is subjected to material, produces the aspects such as electromagnetic coil power, mounting process of impacting force, and generally all there is the transmitted power smaller defect in the magnetic clutch that uses on the current market.Current magnetic clutch is mainly used in the occasions that operating conditions is relatively stable, transmitted power is lower such as lathe, textile manufacturing machine, and its transmitted power is generally below 10kw.To magnetic clutch, when also existing transmitting torque to increase, rotating speed then allowable descends, and rotating speed allowable raises, the problem of the moment of torsion decline of then transmitting.Therefore, retrievable in the market magnetic clutch can not satisfy the moment of torsion and all higher occasion of rotating speed of this working conditions change complexity of automobile, transmission, simultaneously, does not also see relevant technical paper report.

The model utility content

The purpose of this utility model is intended to overcome the defective of above-mentioned prior art, a kind of large power electric control clutch and device are provided, use low power magnetic clutch and realize that powerful power engages and shut-off means, can be used for resembling the moment of torsion and all higher occasion of rotating speed of transmission of power working conditions change complexity such as automobile, transmission.

As shown in Figure 1, 2, described device comprises gear current divider box 1, joining shaft 2,3, planetary gears 4 and magnetic clutch 5; Described gear current divider box 1 is connected by the gear ring of joining shaft 2 with planetary gears 4; Gear current divider box 1 is also controlled the joint of power and another joining shaft 3 of cut-out and the sun gear of planetary gears 4 by magnetic clutch 5 and is connected.

Working principle:

The utility model can realize that powerful power engages and cuts off with low power magnetic clutch, its principle is to have shunted most of power by a joining shaft, therefore, controlling the power that power engages and the joining shaft of disconnection transmits by magnetic clutch only is the sub-fraction of input power.Theoretical foundation is as follows:

Can establish: the motive force output power is P ₁, output speed is n ₁, output torque is T ₁

The power of driven object connecting end is P _j, rotating speed is n _j, moment of torsion is T _j

Gear current divider box 1 is P by joining shaft 2 with the gear ring power that power is sent to planetary gears _q, rotating speed is n _q, moment of torsion is T _q

Gear current divider box 1 is P by joining shaft 3 with the sun gear power that power is sent to planetary gears 4 _t, rotating speed is n _t, moment of torsion is T _t

Z ₁-with cog driving gear in the meshed gears current divider box of joining shaft 3;

Z ₂-with Z ₁Gear on the joining shaft 3 of engagement;

Z ₃-with planetary gears cog the engagement joining shaft 2 on gear;

Z ₄-with Z ₃And planetary gears 4 upper ring gear meshed gears;

i ₂₁-Z ₂With Z ₁Between speed ratio;

i ₄₃-Z ₄With Z ₃Between speed ratio;

I-Z ₄With Z ₁Between speed ratio;

n ₁, n ₂, n ₃, n ₄-be respectively gear Z ₁, Z ₂, Z ₃, Z ₄Rotating speed;

n _t, n _q-be respectively the rotating speed of sun gear and gear ring on the planetary gears 4;

K-planet row's special parameter, the i.e. gear ratio of gear ring and sun gear;

It is as follows that optimum clutch under the optimum planet row situation has related parameter to determine;

1, calculates the power of magnetic clutch 5 shunt and the ratio of motive force input power;

Parameter-definition according to the front has:

$i_{21}=\frac{n_1}{n_2}...\left(1\right)$

$i_{43}=\frac{n_3}{n_4}...\left(2\right)$

$i=\frac{i_{43}}{i_{21}}...\left(3\right)$

n _t＝i ₂₁*n ₁ (4)

n _q＝i ₄₃*n ₁ (5)

n _q＝i*n _t (6)

Moment of torsion and rating formula according to planetary mechanism in the Der Grundsatz der Maschinen have:

$K=\frac{T_q}{T_t},T_1=(1+k)T_t...\left(7\right)$

$\frac{P_t}{P_1}=\frac{1}{1+k*i}...\left(8\right)$

According to formula (8), the watt level that magnetic clutch 5 is shunted along separate routes is relevant with velocity ratio i with planet row special parameter k, and its pass is that the product of the two is big more, and the power proportions of magnetic clutch 5 shunting circuits is more little.

2, calculate the rotating speed of magnetic clutch 5 shunt and the ratio of outputting power rotating speed

By the three-element revolution speed calculating formula of planetary mechanism in the Der Grundsatz der Maschinen, have:

n _t+k*n _q＝(1+k)n _j (9)

With (6) formula substitution (9) formula, have:

n _t(1+k*i)＝(1+k)n _j (10)

According to formula (10), magnetic clutch 5 rotating speed size along separate routes is relevant with the i product with k with planet row special parameter k, and i is big more, and shunting rotating speed along separate routes is more little.Generally speaking, the i value is greater than 1.K is big more, and shunting rotating speed along separate routes is more little.

3, calculate the moment of torsion of magnetic clutch 5 shunt power and the ratio relation of outputting power moment of torsion

The moment of torsion of magnetic clutch 5 shunt and the ratio relation of outputting power moment of torsion are exactly the ratio relation problem of k, by the three-element revolution speed calculating formula of planetary mechanism in the Der Grundsatz der Maschinen, have:

T ₁＝(1+k)T _t (11)

T _j＝(1+k)T _t (12)

The moment of torsion relation is relevant with k as can be seen from top two representations, because T ₁Or T _jThe value relative fixed, therefore, k is big more, the moment of torsion that magnetic clutch 5 transmits along separate routes is also more little.

About magnetic clutch 5 analysis of three kinetic parameters along separate routes, the parameter K value is big more as can be known above, and the moment of torsion that the power that magnetic clutch 5 is exported along separate routes is more little, rotating speed is low more, transmit is more little.By getting certain k value, can realize the purpose of this utility model.

Advantage of the present utility model:

1,, can realize that powerful power engages and cuts off by low power magnetic clutch;

2, owing to having adopted magnetic clutch, so be easy to realize automatic control;

3, the main parts size of the gear current divider box, joining shaft, planetary gears and the magnetic clutch that relate to of the utility model is the off-the-shelf that can buy on the market, and whole device is easy to realize.

Description of drawings

Fig. 1 is the structural representation of large power electric control clutch device.

Fig. 2 is a large power electric control clutch device Placement schematic representation

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.

Embodiment 1

Motive force is powerful motor, and driven object is a generator.

As shown in Figure 1, 2, the large power electric control clutch device is made of gear current divider box 1, joining shaft 2,3, planetary gears 4, magnetic clutch 5.Planetary gears 4 is the planetary gears of single planetary row for 2DOF, and gear current divider box 1 is for being made of a pair of fixed axis gear engagement, and magnetic clutch 5 is the conventional magnetic clutch 5 of monolithic or multidisc.Gear current divider box 1 is connected by the gear ring of joining shaft 2 with planetary gears 4; Gear current divider box 1 is also controlled the joint of power and another joining shaft 3 of cut-out and the sun gear of planetary gears by magnetic clutch 5 and is connected.

According to top analysis about three kinetic parameters of magnetic clutch 5 shunt, parameter k value is big more as can be seen, and the moment of torsion that the power that magnetic clutch 5 is exported along separate routes is more little, rotating speed is low more, transmit is more little.With regard to the situation of the clutch of widespread usage in the reality,, determine the selection of magnetic clutch 5 in the present embodiment below by power, rotating speed, three CALCULATION OF PARAMETERS of moment of torsion:

1, power determines

In general, the value of the special parameter k of planetary gears is got k=4 2～4 better, and according to formula (8), magnetic clutch 5 is shunting power ratio and the negative correlativing relations that become of gear engagement than i along separate routes.

By above-mentioned analysis, get k=4, this group parameter of i=2 is analyzed, and the ratio that the power that magnetic clutch is shunted along separate routes accounts for total transmitted power is 0.1111, is equivalent to 1/9.The transmitted power of as seen required clutch is little.If the power that transmits is 50kw, then the power of magnetic clutch 5 transmission only needs 5.556kw.

2, rotating speed determines

The motive force maximum speed is 2011rpm.

By as can be known aforementioned, i=2, k=4, according to ordinary circumstance, desirable i ₂₁=1.4, because general magnetic clutch 5 rotating speeds allowable are 1500～2000rpm, so in order to satisfy usage requirement, adopting slows down to increase to turn round mates magnetic clutch 5 rotating speeds.Get i ₄₃=2.8, according to formula (10), in the process of magnetic clutch 5 shunt transmitted powers, its rotating speed is up to 1800rpm.

3, moment of torsion determines

The Maximum Torque of known motive force output is 280N.m, and according to formula (11), the moment of torsion maximum value that clutch transmits along separate routes is 58N.m.

According to aforementioned calculation, carry out 50kw, the 280N.m rotating speed is the motive force transmission of 2011rpm, only needing to select power be that 10kw, rotating speed are that 1800rpm, transmitting torque are the DLD6-60 type magnetic clutch 5 of 58N.m, its safety coefficient is 1.37.If select DLD6-80, safety coefficient can reach 2.76.The transmission of power that can be used for the light car motor fully.

Embodiment 2

Carry out 100kw, the 560N.m rotating speed is the motive force transmission of 2011rpm.Large power electric control clutch device middle gear current divider box 1 and planetary gears 4 are with embodiment 1.Magnetic clutch 5 is selected as follows:

Analytic process according to embodiment 1, only needing to select power is that 15kw, rotating speed are that 1800rpm, transmitting torque are the DLD6-120 type magnetic clutch 5 of 120N.m, its safety coefficient is 1.35, if select DLD6-160, safety coefficient can reach 1.79, can satisfy the usage requirement that the intermediate engine power transmits fully.

By above analysis as can be known, only select one can transmit smaller power, than the magnetic clutch of the slow-speed of revolution, less moment of torsion, can satisfy cut-out and Engagement Control, and be easy to realize automatic control the power of high-power, high rotating speed, high pulling torque.

Claims (4)

1, a kind of large power electric control clutch device is characterized in that described device comprises gear current divider box (1), joining shaft (2,3), planetary gears (4) and magnetic clutch (5); Described gear current divider box (1) is connected by the gear ring of joining shaft (2) with planetary gears (4); Gear current divider box (1) is also controlled the joint of power and another joining shaft (3) of cut-out and the sun gear of planetary gears (4) by magnetic clutch (5) and is connected.

2, a kind of large power electric control clutch device according to claim 1 is characterized in that described planetary gears (4) is the planetary gears of single planetary row.

3, a kind of large power electric control clutch device according to claim 1 and 2 is characterized in that described gear current divider box (1) is made of a pair of fixed axis gear engagement.

4, a kind of large power electric control clutch device according to claim 3 is characterized in that described magnetic clutch (5) is monolithic or the conventional magnetic clutch of multidisc.

Images