JPS61143250A - Braking device for farm tractor - Google Patents

Abstract

PURPOSE:To make a brake case so as not to touch levels and and farm products, by installing the brake case in the outer side of a final case. CONSTITUTION:A steering brake shaft 7L is set up toward both directions, piercing through the inside of a rear axle housing 6L from a differential gear 12. And, the tip end thrusts through a final case 2L and is inserted into the inside of a brake case 1L tightly attached to the outer side. And, a small diametral gear 15L is tightly installed in a part inside the final case 2L of the steering brake shaft 7L and it is engaged with a large diametral gear 16L tightly installed in an axle 14L. An axle flange 17L is installed in an outer side of the axle 14L as being unitized in one, to which a ram 18a of a rear wheel 18L is locked.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a calibration brake device for separately braking the left and right rear wheels of an agricultural tractor for inspection.

(b) Prior art In conventional agricultural tractors, most of the steering brake devices are located in the transmission case.
It was installed at the base of the uzing.

For example, Japanese Patent Publication No. 56-48341.

However, in a conventional braking device like this, the 6m of the rear axle housing is about 11g, and the transmission case has a shape that looks like it has spread widely from side to side, passing between the construction of the conventional instep. The brake case came into contact with the crops on the lifting platform, causing serious damage.

(c) Problems to be Solved by the Invention The present invention is intended to reduce the length of the protrusion near the transmission case as much as possible in order to use a lifting platform that crosses over the crop ridges to harvest the crops. In order to eliminate the WR part, the brake case was attached to the final case (ZJO 9111 ■), which was not previously provided, and was housed within one compartment of the removal case.

B) Means for Solving the Problems The purpose of the present invention is as described above.Next, I will explain all 14 precepts for achieving the purpose.

The final case is fixed to the tip of the rear axle housing that protrudes left and right from the transmission case of the agricultural tractor, and the rear axle housing is supported by a military cap that protrudes from the final case.
The brake case is fitted into the outer rim, and the brake case is fixed to the outer four sides of the brake case, which is placed within the width of the sare.

(E) The purpose and structure of the invention are as described above, and their use will be explained in conjunction with the structure of the embodiment shown in the accompanying drawings.

The offset type tractor, flat@kyo, is shown as the first bald filling tractor. The second scene shows the tractor dashing and trying to fall towards the enemy. 4
Figure 3 shows the rear side of the transmission case, rear axle housing, and final case. The fourth figure is a diagram of the outside of the final case showing the dash vehicle collapse prevention mount.

Let me explain from the complete construction of the offset type tractor in l1g1.

Front wheels (31L) (31R), rear wheels (18L) (18
R) with respect to the center of the fuselage, bonnet 1. fI, the mission case (9) etc. is made into 1 piece according to the 1 piece rule.
It's being fixed. Then turn the steering wheel eccentrically to the open right side), seat VO1 step 1261 W f
The fi is rearranged to make it easier to see the proboscis below. Left and right deep brake pedals (24L) (241'l) are arranged at the front end of step w61.

aJ is a mid-cult device placed on the acid part of an offset type layer tractor, and lA) is a rear chart placed on the surface of a sword.

Next, referring to FIG. 2, the rotation prevention brake will be explained.

If the agricultural tractor heads up above the oblique moon around Gendaijo all 1 on a sloping land, or if you make a sudden dash due to a mistake in V, the - of the 9f + usage sensor (to) around the 1st sloping land will occur.
Lucky yoji, actuate the brakes on Kyogun @n with your eyes,
The reaction force of this cuts it! It is designed to take this into account and prevent it from happening.

Below the kneeling Jg (2) is the aircraft body + t) 11 tilt angle sensor 1 circle is installed, and this aircraft + C54fp + angle sensor φa senses a peak of more than V month, so all the solenoids of the connection are activated. be. The solenoid () is linked to the brake arm (19L) (19R) of the brake case (IL) (IR) like the fourth evil (35L) (35R).
When the arms (2OL) and (2OR) connected at This is to restore it to its royal posture.

The steering brake device can be either an internal expansion type or a disc type, and
The rock bottom angle sensor (to) may be either mechanical or drowsy.

Figure 3 shows the transmission case (9), rear axle housing (6L) (6R), final case (2L) (
2R) Miyako no Kyoumensho 1111 is active, and the rotation after the rectangular movement device in the mission case (9) is engaged is transmitted to the differential gear device u21 by the pinion 1tLll of the pinion shaft.

Steering brake n (7L) (7) to the left and right from the differential gear device
R) penetrates the inside of the rear axle housing (6L) (6R) and is self-rectified, and the tip passes through the length of the final case (2L) (2R) and is fixed to the outer surface of the brake case. (IL) (IR) 1 offer has been made to the yen. In addition, the Kosumi gear (15L) (15R) is fixedly installed in the final case (2L) (2ft) of the steering brake @ (7JJ) (7R), and the axle (14L)
) Large diameter gear (16L) fixed to (14R) (1
6R).

A military cap flange (17L) (17fl) is integrally provided on the outer end of the axle (14J-1) (14R), and the rim (18a) of the armored wheel (18L) (18R) is attached to this.
(18a) is fixed with bolts. , As shown in the drawing on the right side of Figure 3, the final case (2J
-) (2fl) is the outer edge of the rear wheel rim (18a) (18
a) Since the deceased is placed inside, it goes without saying that there is no brake case attached to the outer surface of the rim (18a) (181L).
It is in a state where it is housed inside f'. Further, a bolt hole is provided inside the left axle (14L) to make the extension shaft (5a) an extension ITE, and a PTO sprocket (b) is provided on this extension (5,a).

This can be installed for convenience, and if it is not necessary, the hole can be closed with a metal fitting.

At the PTO sprocket (5), the 1st position is set to the 1st position.

(8) is set with the differential lock pedal, II] IIIL, l
! U), shifter 1211, differential lock pin @
It is possible to lock and release the differential device U21 gold by moving the left and right sides.

As shown in the third cause, since the brake case (IL) (IR) was installed inside the rim, the brake arm (19L) (
A link arm mechanism is required for the sinking of the 19R), and rotation across the final case (2L) (2f'j) and rear axle housing (6L) (f311'j) @ (3L) (3R) is supported.

Then, the arms (2OL) (2OR) at the outer ends of the circuit d[1llB (3L) (3R) and the brake arm (19
L) (191() are connected by links (35L) (35R).

Also, the arm (4L) at the inner end of the rotation @ (,3L) (3R)
) (4R) as shown in No. 118I, link (36L)
) (23R) (Il-valve is connected to the right brake pedal (24L) (24R).

Between the link (36L) and the brake pedal (24L), there is a rotary valve that can be used to follow F of the transmission case (9). With this structure, the following effects can be obtained.

First, the brake case is not installed on the outer surface of the transmission case as in the past, but is installed on the outer surface of the final case, so it does not touch the ridges or crops, and the right rear wheel has a wide and comfortable 9-hour full pressure. It was possible to set it up in between. This is effective for offset type tractors, which are mainly used for managing millet.

Second, when the brake device was installed at the base of the rear axle housing as in the past, it was rarely necessary to remove the brake and also the rear axle housing when replacing the brake shoes, etc., but with the present invention, , by providing it on the outer surface of the final case, 't@Ir
: Just remove it and put it on the brake case.* Now you can remove it.

[Brief explanation of drawings]

The first one is a U-type tractor, which is an offset type tractor. The second scene shows the Tetsuri tractor dashing and about to fall backwards. The third culprit is the transmission case, rear axle housing,
FIG. 3 is a rear view of the final case part. The fourth figure is an external view of the final case showing the dash roll prevention device.

Claims (1)

[Claims] In a configuration in which a final case is fixed to the tip of a rear axle housing that protrudes left and right from the transmission case of an agricultural tractor, and the rear wheel is supported by an axle that protrudes from the final case, the outer surface of the final case is inserted into the rear wheel rim. A brake device for an agricultural tractor, characterized in that a brake case that is fitted into and fixed to the outer surface of the tractor is housed within the width of the rear wheel.