JP4605577B2 - Mounting structure of electromagnetic retarder - Google Patents

Description

  The present invention relates to a vehicle equipped with an electromagnetic retarder, and more particularly, to a mounting structure of the electromagnetic retarder of the vehicle.

  The electromagnetic retarder is directly interposed in a vehicle drive system or a rotating part of the vehicle traveling, for example, a rotating part of an axle, and the electromagnetic retarder generates an eddy current due to the rotation of the electromagnetic retarder. It is configured to carry out auxiliary braking.

  Such an electromagnetic retarder 10 is interposed between the rear end of the transmission 60 of the tractor T and the propeller shaft 62 as shown in FIG. 6, or the vehicle body 120 of the trailer 100 as shown in FIG. For example, the rotational force of the trailer axle 5J using the rear axle for the truck is connected to the electromagnetic retarder 10 via the propeller shaft 62, and the electromagnetic force when the eddy current is generated by the rotation of the electromagnetic retarder. Is configured to obtain a braking force. (For example, see Patent Document 1 for the latter).

  Alternatively, in a general vehicle (single vehicle) having a tractor or a self-propelling means, there is an example in which the retarder is arranged directly on the rear axle immediately before the rear axle.

However, as described above, in a single vehicle having self-propelled means, disposing the retarder in a region between the front axle and the rear axle is likely to be directly hit by stone splashing by the front axle. In order to prevent such damage from stone splashing, it is conceivable to install a cover or the like. However, when the retarder is activated, it is inevitable to dissipate a huge amount of heat, which is not always a good idea. Also in the example of the trailer, there is naturally a problem of stone splashing due to the rear wheel on the tractor side.
Japanese Utility Model Publication No. 6-21303

  The present invention has been proposed in view of the above-described problems of the prior art, and an object thereof is to provide a mounting structure for an electromagnetic retarder that can prevent the direct hitting of stones and ensure the cooling performance of the electromagnetic retarder. .

  According to the present invention, in the mounting structure of the electromagnetic retarder of the trailer (1) connected to the coupler (C) of the tractor (T), the rear side of the trailer frame (2) of the trailer (1) is internally dediffered. An axle (5) having a shear gear (7) is supported by a suspension device, and a pair of support members (9) extending rearward are attached to the axle housing (5h) of the axle (5), An electromagnetic retarder having a stator (11) and a rotor (12) is supported by a pair of support members (9) by a pair of brackets (19), and is attached to a drive pinion (7p) of the differential gear (7). The drive shaft (20) connected to the rotor (12) is fixed, and the trailer (1) is equipped with a battery (30) and a control unit (40). The battery (39) is connected to the exciting coil of the electromagnetic retarder (10) via the relay of the control unit (40), and a hand controller (50) for switching the relay is provided in the driver's seat. ing.

  The said rotation transmission means (7) is arrange | positioned so that the projection area toward the front of the front-back direction of an electromagnetic retarder (10) may be covered.

  According to the mounting structure (1, T, V) of the electromagnetic retarder of the present invention having the above-described configuration, by installing the electromagnetic retarder (10) behind the axle (5, 50, 6B), Since the axle shaft (5, 50, 6B) covers the front side of the electromagnetic retarder (10), in the trailer (1), a direct hit of the stone repellent by the rear wheel (8T) of the tractor (T) is applied to a single vehicle (for example, a tractor In T), there is no direct hit of stone splashing by the front wheel (70) of the own vehicle, or in a single vehicle (ordinary truck V), no direct hit of stone splashing by the rear front wheel (8F) of the own vehicle.

  Therefore, it is not necessary to install a cover for preventing stone splashing damage.

  The electromagnetic retarder (10) can be mounted directly behind the differential gear (differential gear 7) of the drive shaft (inline tandem axle 50) of a vehicle (for example, tractor T) including an ordinary vehicle. Therefore, development of a new unit is unnecessary.

  For example, an axle similar to the drive shaft (5B) is used as the driven shaft (6B) of a single vehicle (ordinary one-axis drive three-axis track V), and an electromagnetic retarder is directly connected to the differential gear (7) of the axle. Since (10) can be mounted, development of a new unit is unnecessary.

  Since the differential gear (7) is used as the rotation transmission means, the conventional components of the axle can be used.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  First, the first embodiment will be described with reference to FIGS. 1 and 2.

  In FIG. 1, the coupler C of the tractor T is engaged with a coupling means (not shown) of the trailer 1 on which the electromagnetic retarder 10 as the vehicle is mounted.

  In the trailer 1, for example, a large van 3 is mounted on the upper surface of the trailer frame 2, and side guards 4 for preventing a pedestrian and a bicycle from being caught on both sides of the trailer frame 2 in the traveling direction. Is provided.

  Further, behind the trailer frame 2, two axles 5 and 6 are swingably supported by the trailer frame 2 by a suspension device (not shown). The electromagnetic retarder 10 is installed on the front axle 5 of the two axles 5 and 6 by the method described in detail below. However, depending on the form of the trailer, there are those that do not have the axle 6 and those that further add one axle behind the axle 6. Further, the axle on which the electromagnetic retarder 10 is mounted is not fixed to the axle 5, and may be the axle 6 or a newly added axle.

  As shown in FIG. 2, the axle 5 on the front side of the trailer 1 uses the drive shaft of a large truck with a differential gear 7 inside in the illustrated example.

  Although the differential gear 7 is omitted and drawn, in principle, as a minimum unit, a ring gear 7r engaged with an axle shaft 7a having a wheel 8 fixed to an end thereof as a minimum unit, and a ring gear 7r meshed with the ring gear 7r. And a drive pinion 7p that converts the rotational force in a direction orthogonal to the axle shaft 7a.

  On the other hand, a pair of support members 9, 9 are attached to an axle housing 5h constituting the axle 5 by a known means so as to extend rearward of the axle 5.

  The pair of support members 9, 9 support the electromagnetic retarder 10 composed of the stator 11 and the rotor 12 so as to be sandwiched by a pair of brackets 19.

  A drive shaft 20 is fixed to the drive pinion 7p of the differential gear 7 of the axle, and the drive shaft 20 is connected to the rotor 12 of the electromagnetic retarder 10.

Referring to FIG. 1 again, the trailer 1 has a battery 30 and a control unit 40 mounted thereon.
The battery 30 is connected to a relay (not shown) in the control unit 40 by a line L1, and the relay (not shown) in the control unit 40 is connected to an excitation coil (not shown) of the electromagnetic retarder 10 by a line L2.

  The control unit 40 is connected to a hand controller 50 provided in the driver's seat on the tractor T side by a line L3, and is configured so that the relay is intermittently operated by operating the hand controller 50 by a driver.

That is, for example, when a driver (not shown) drives down the tractor T that has pulled the trailer 1 on a long slope or a steep slope, the relay is connected by the driver operating the hand controller 50.
When the relay is connected, a predetermined voltage is applied from the battery 30 and energized to an excitation coil (not shown) of the electromagnetic retarder 10.

  On the other hand, the rotation of the wheel 8 rotates the rotor 12 of the electromagnetic retarder 10 in a state where the excitation coil is energized via the axle shaft 7a, the ring gear 7r of the differential gear 7, the pinion 7p, and the drive shaft 20. At that time, the electromagnetic retarder 10 generates an eddy current, and the electromagnetic force generated by the eddy current acts to prevent the rotor 12 of the electromagnetic retarder 10 from rotating, so that the trailer indirectly connected to the rotor 12 is used. A braking force is applied to one wheel 8.

  As described above, in the first embodiment shown in FIGS. 1 and 2, by installing the electromagnetic retarder 10 behind the axle 5, the axle 5 covers the front side of the electromagnetic retarder 10. There is no direct hit of the stones by the wheels 8T.

    Therefore, it is not necessary to install a cover for preventing stone splashing damage.

Next, a second embodiment will be described with reference to FIG.
The second embodiment of FIG. 3 is an embodiment in which the electromagnetic retarder 10 is connected to the rear shaft 50 of the tractor T.

As the rear shaft of the tractor, in the illustrated example, an in-line tandem axle 50 used in a three-axis track for rear wheel two-axis drive is directly connected to the electromagnetic retarder 10.
That is, in the original three-axle truck, the inline tandem axle 50 consumes half of the rotational driving force applied from the transmission 60 via the propeller shaft 62 by the own axle 50 and the other half is consumed by the axle 50. It is an axle of a system which distributes to the last axis side which is not illustrated by the through shaft 54 which has.

  In this embodiment, as shown in detail in FIG. 4, the through shaft 54 is connected to the rotor 12 of the electromagnetic retarder 10. The retarder 10 is supported by a support member 90 fixed to the housing 50h of the axle 50 so that the side portion of the stator 11 of the retarder 10 is sandwiched.

  According to the second embodiment configured as described above, since the electromagnetic retarder is attached to the rear of the rear shaft, the rear shaft 50 can block the direct hitting of stone splashing by the front wheel 70.

  Next, a third embodiment will be described with reference to FIG. The third embodiment of FIG. 5 is a case where only the front one shaft 5B is the driving shaft among the two rear wheels 2 of the triaxial vehicle V having the two rear wheels, and the rear last shaft (driven shaft). This is an embodiment in which the electromagnetic retarder 10 is attached to 6B.

  The procedure for attaching the electromagnetic retarder 10 to the last shaft (driven shaft) 6B is the same as that in the first embodiment described above, and the detailed description relating to the configuration will be omitted.

  According to the third embodiment configured as described above, the electromagnetic retarder is attached to the rear of the rearmost shaft (driven shaft) 6B, so that the stone by the wheel 8F on the front shaft (rear front shaft) 5B side. The direct hit of splashing can be blocked by the last axis (driven axis) 6B.

  The illustrated embodiment is merely an example, and does not limit the technical scope of the present invention. For example, the second embodiment shows an example implemented on a tractor, but is used for a normal biaxial track. Is also possible.

  In the third embodiment, the electromagnetic retarder 10 is attached to the last shaft (driven shaft) 6B of the three-axis track. However, as in the second embodiment, the front one shaft is an inline tandem axle and the inline tandem axle is used. Alternatively, the electromagnetic retarder 10 may be directly connected.

The side view which showed schematic structure of 1st Embodiment of this invention. The top view which showed the structure of the principal part in detail in the Y arrow line view of FIG. The side view which shows schematic structure of 2nd Embodiment of this invention. The side view which showed the structure of the principal part of 2nd Embodiment of this invention further in detail. The side view which shows schematic structure of 3rd Embodiment of this invention. The side view of the vehicle which showed the mounting position of the electromagnetic retarder in the tractor in a prior art. The side view of the vehicle which showed the mounting position of the electromagnetic retarder in the trailer in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Trailer 2 ... Trailer frame 3 ... Large van 5, 6 ... Axle 7 ... Differential gear 8 ... Wheel
9: Support member
DESCRIPTION OF SYMBOLS 10 ... Electromagnetic retarder 11 ... Stator 12 ... Rotor 30 ... Battery 40 ... Control unit

Claims (1)

In the mounting structure of the electromagnetic retarder of the trailer (1) connected to the coupler (C) of the tractor (T), a differential gear (7) is internally provided behind the trailer frame (2) of the trailer (1). The axle (5) is supported by a suspension device, and a pair of support members (9) extending rearward is attached to the axle housing (5h) of the axle (5), and the pair of support members (9 ), An electromagnetic retarder having a stator (11) and a rotor (12) is supported by a pair of brackets (19). The drive pinion (7p) of the differential gear (7) includes the rotor (12). A drive shaft (20) connected to the vehicle is fixed, and a battery (30) and a control unit (40) are mounted on the trailer (1). (30) is connected to the exciting coil of the electromagnetic retarder (10) via the relay of the control unit (40), and a hand controller (50) for connecting and disconnecting the relay is provided in the driver's seat. The mounting structure of the characteristic electromagnetic retarder.

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