JPH035228Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a detection device for detecting grain culm clogging between the straw removal chain and the bundling passage in a combine bundling machine in which the bundling position can be changed in the lateral direction of the machine body. It is.

As this type of detection device, a sensor mechanism including a sensor attached to the intake guide is known, but since it is installed on the opposite side of the straw removal chain and at a distance from the straw removal chain, it is difficult to detect grain culm clogging. It had the disadvantage of being slow.

The present invention aims to eliminate the above-mentioned drawbacks of conventional devices by setting the sensing position near the point where the straw is taken over from the straw removal chain to detect poor conveyance before grain culm clogging occurs in the conveyance path. It is something to do.

In this invention, the sensor is located at the tip of the intake guide, which extends to a position near the end of the straw holding guide on the lateral outer side of the straw removal chain, so that the detection activation position is between the intake guide and the straw removal chain. The device is also characterized by being equipped with a sensor mounting bracket.

The following will explain the embodiments shown in the drawings.

Similar to the conventional device, an intake guide 3 is disposed between the straw removal chain 1 and the binding machine 2, and a conveyance path Q is formed in front of the binding passage P of the binding machine 2.

Extend the tip 3a of the intake guide 3 to a side position of the terminal end of the straw removal chain 1, and
a is opposed to the lateral outer side (side surface on the stock side) of the straw removal chain 1, and is located near the terminal end 1a of the straw presser guide.

A sensor mounting bracket 4 is fixed to the tip 3a of the intake guide 3 on the side of the straw removal chain 1, and the sensor box 5b of the sensor 5 is attached to the sensor mounting bracket 4 by making the operating piece 5a hang downwardly.

Thus, the actuating piece 5a of the sensor 5 protrudes from the straw removal chain 1 to the straw transfer point R to the conveyance path Q.

Therefore, when the supply of waste straw increases due to an increase in supply, etc., the amount of waste straw at the waste straw transfer point increases before the grain culm accumulates in the conveyance path Q and causes the grain culm to become clogged.
It comes into contact with the actuating piece 5a, causing the sensor 5 to detect and operate.

Since the sensor mounting bracket 4 is located on the side of the sensor box 5b, it also functions as a protective member for the sensor 5.

In the present invention, the tip of the intake guide is extended toward the straw removal chain so that the tip faces the straw removal chain and is located near the end of the straw holding guide, and a sensor is installed at the tip of the intake guide on the straw removal chain side. Since the mounting bracket is fixed in the horizontal direction and the sensor is mounted on the sensor mounting bracket with its operating piece protruding downward, the initial stage at the straw transfer point at the end of the straw removal chain can be prevented before grain culm clogging occurs in the conveyance path. can detect grain culm clogging. In addition, even if the binding machine moves from side to side, the sensor is always located near the straw removal chain and is never far away from the straw removal chain, so that the detection function of the sensor can always be maintained well.

Furthermore, the horizontal sensor mounting bracket functions as a cover for the space above the sensor and has the effect of protecting the sensor.

[Brief explanation of the drawing]

FIG. 1 is a partial plan view showing the main parts of a combine harvester embodying the present invention, and FIG. 2 is a partial side view thereof. 1... Straw removal chain, 2... Binding machine, 3... Intake guide, 4... Sensor mounting bracket, 5... Sensor.

Claims (1)

[Scope of utility model registration request] In a combine tying machine that has an intake guide for feeding waste straw from a straw removal chain toward a tying passage, and in which the tying position can be changed in the lateral direction of the machine, the tip of the intake guide is connected to the side of the straw removal chain. A horizontal sensor mounting bracket is provided nearby that extends to a position near the end of the straw holding guide, and extends toward the straw removal chain at the tip of the intake guide. A grain culm clogging detection device, characterized in that it is installed so as to protrude downward between and an intake guide.