JPH04320615A - Thresher-supporting structure of combine - Google Patents

Abstract

PURPOSE:To effectively suppress the longitudinal and lateral vibration by using a vibration-damping rubber to make the longitudinal vibration caused by a vibration screen, etc., and the lateral vibration caused by a threshing drum absorbed. CONSTITUTION:Vibration in longitudinal direction caused by a vibration screen 7, etc., and vibration in lateral direction caused by a threshing drum 6 are absorbed by vibration-damping rubbers 11a... slantly attached to the front part and the right and left side parts of the threshing apparatus. Each vibration- damping rubber is composed of a rubber piece sandwiched between a pair of oppositely placed plates. The rubber may contain a limit stopper and a tension spring.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for a threshing device of a combine harvester.

0002

2. Description of the Related Art Conventionally, threshing devices have been mounted directly on a vehicle body frame and connected with bolts.

0003

[Problems to be Solved by the Invention] The vibrations of the threshing device are transmitted to the human body through the vehicle body frame, and there is also a drawback that the vibrations of the threshing device resonate strongly with the vibrations of the engine. Therefore, it is conceivable to attach the threshing device to the vehicle body frame via anti-vibration rubber, but the threshing device may be equipped with a swing sorting device that swings in the longitudinal direction of the machine, or a belt tension clutch that uses power from the engine. The belt tension clutch, which transmits power to the winnowing machine of the threshing device, is turned on and off in the longitudinal direction of the machine, and also by the handling barrel, which rotates around the machine's longitudinal axis located at a high position. However, if the device is supported through a flat plate-like vibration isolating rubber, it is inconvenient that the longitudinal and lateral vibrations cannot be satisfactorily suppressed.

[0004] A first object of the present invention is to improve the vibration isolation structure of the threshing device so that vibrations in the longitudinal and lateral directions of the machine body can be effectively suppressed.

[0005] A second object of the present invention is to more effectively suppress longitudinal vibrations caused by turning on and off the belt tension clutch of the threshing device.

[0006]

[Means for Solving the Problems] The technical means of the present invention for achieving the above-mentioned first object is to install the front part of the threshing device through an oblique anti-vibration rubber that absorbs vibrations in the front and back direction of the threshing device. At the same time, the rear part of the threshing device is supported through diagonal vibration isolating rubbers arranged on both left and right sides of the threshing device to absorb vibrations in the left and right direction.

[0007] Also, the technical means of the present invention for achieving the second object is to support the front part of the threshing device through an oblique vibration isolating rubber that absorbs vibrations in the front and back direction of the threshing device, and , the rear part of the threshing device is supported via diagonal vibration isolating rubber that absorbs vibrations in the left and right directions, which are arranged on both left and right sides of the threshing device, and further, the rear side of the threshing device is arranged at the rear of the threshing device. It is supported through diagonal anti-vibration rubber that absorbs vibrations in the longitudinal direction.

[0008]

[Operation] The operation of the first technical means described above is as follows. In other words, the vibration in the front and back direction of the threshing device due to the influence of the oscillating sorting device etc. is absorbed by the vibration isolating rubber on the front side of the threshing device.
Lateral vibrations of the threshing device due to the influence of the handling cylinder are absorbed by the vibration isolating rubber on the rear side of the threshing device. and,
The span of the anti-vibration rubber on the rear side is longer than the span of the anti-vibration rubber on the front side, so when a straw cutter, binding device, etc. can be effectively suppressed.

The effects of the second technical means described above are as follows. In other words, in addition to the action provided by the first technical means, there is also a vibration-proof rubber on the rear side of the threshing device to absorb vibrations in the front and back direction, so when the belt tension clutch for the threshing device is turned on and off, etc. Vibration in the front and back direction,
Together with the vibration isolating rubber on the front side of the threshing device, it can be prevented more effectively. Since the vibration isolating rubber is provided with a limit stopper that limits the permissible range of deformation of the vibration isolating rubber, shearing of the vibration isolating rubber during large vibrations can be prevented.

0010

[Effect of the invention] Book 1 obtained by taking the above technical means
The invention provides the following effects through the above-mentioned actions. In other words, by supporting the threshing device through vibration-isolating rubber, it is possible to avoid the negative effects on the human body due to the vibrations of the threshing device. By installing a device that absorbs vibrations in the left and right directions, it is possible to effectively suppress back and forth and left and right vibrations.Moreover, because the span of the vibration isolating rubber on the rear side is long, the rear part of the threshing equipment Lateral vibrations on the rear side when the straw removal cutter and the binding device are connected to the rear side can be more effectively suppressed.

[0011]The second invention, which is based on the above-mentioned technical means, provides the following effects through the above-mentioned operation. In other words, in addition to the effects of the first invention, it is possible to more effectively suppress the shocking back-and-forth vibrations caused by turning on and off the belt tension clutch of the threshing device, and the straw removal cutter is installed at the rear of the threshing device. It is possible to more effectively suppress back-and-forth and left-right vibrations when a binding device or a binding device is connected.

0012

[Embodiment] As shown in FIGS. 1 and 3, the engine 1 is connected to the winnowing machine 4 of the threshing device 3 via the belt tension clutch 2.
The belt transmission device (not shown) is transmitted from the winnow 4 to the belt transmission device (not shown).
It is configured to transmit power to the handling cylinder 6 via. Inside the threshing device 3, there is a conventionally known rocking sorting device 7 that swings in the front-rear direction of the machine body, and a first grain sorting device that transports the sorted first and second grains laterally. A conveying device 8, a second object conveying device 9, etc. are provided.

The threshing device 3 is attached to a vehicle body frame 10 via vibration-proof rubber 11. The anti-vibration rubber 11a on the front side of the machine body is attached diagonally to the front part of the threshing device 3 so as to absorb vibrations in the longitudinal direction caused by turning on and off the belt tension clutch 2, etc. The vibrating rubber 11b is installed diagonally on both left and right sides of the threshing device 3 in the same way as the vibration isolating rubber 11a on the front side of the machine body so as to absorb vibrations in the left-right direction of the vehicle body caused by rotation of the threshing device 3 and the like.

As shown in FIG. 2, the anti-vibration rubbers 11a and 11b have rubber b baked and fixed to the opposing connecting plates a and a, and the opposing connecting plates a and a are fixed therein.
, a to limit the allowable deformation range of the rubber material b in the shearing direction. Further, a tension spring d is installed in an X shape between the connecting plate a and the limit stopper c to more effectively prevent shearing of the vibration isolating rubber.

Next, an embodiment of the second invention will be described. In the embodiment of the first invention, as shown in FIG. 1, a diagonal vibration-proofing rubber 11c is further provided at the rear of the threshing device 3 to absorb vibrations in the front-rear direction.

[Another Embodiment] As shown in FIG. 4, the rear vibration isolating rubber 11c may be attached so as to have a surface perpendicular to the perpendicular line of the front vibration isolating rubber 11a. Further, as shown in FIG. 5, at the rear of the vibration isolating rubber 11c, there is a vibration isolating rubber 11 that absorbs vertical vibrations when a straw cutter, binding device, etc. are attached to the rear of the threshing device.
d may be provided. Furthermore, vibration-proof rubber 11a, 1
1b, 11c, and 11d do not need to be provided with the tension spring d.

Although reference numerals are written in the claims for convenience of comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

[Fig. 1] Schematic plan view showing the support structure of a threshing device

[Figure 2]
Cross-sectional view of anti-vibration rubber

[Fig. 3] Schematic side view showing the support structure of the threshing device

[Figure 4]
Support structure for threshing device showing another embodiment

[Figure 5] Furthermore,
Support structure at the rear of the threshing device showing another embodiment

[Explanation of symbols]

3 Threshing device 11a Anti-vibration rubber 11b Anti-vibration rubber 11c Anti-vibration rubber 11d Anti-vibration rubber a Connecting plate b Connecting plate c Limit stopper

Claims (3)

[Claims] Claim 1: The front part of the threshing device (3) is supported via a diagonal vibration isolating rubber (11a) that absorbs vibrations in the front and back direction of the threshing device, and the rear part of the threshing device (3) is A combine threshing device support structure supported via diagonal vibration isolating rubber (11b) arranged on both left and right sides of the device to absorb left and right vibrations. 2. The front part of the threshing device (3) is supported via a diagonal vibration isolating rubber (11a) that absorbs vibrations in the front and back direction of the threshing device, and the rear part of the threshing device (3) is The threshing device (3) is supported through diagonal vibration isolating rubber (11b) arranged on both the left and right sides of the device to absorb vibrations in the left and right direction, and furthermore, the rear side of the threshing device (3) is arranged at the rear of the threshing device. A threshing device support structure for a combine that is supported via diagonal anti-vibration rubber (11c) that absorbs vibrations in the longitudinal direction. [Claim 3] The vibration-proof rubber (11a), (11b)
, (11c) have connecting plates (a),
A limit stopper (a) is placed in the middle of the rubber material (b) on which (a) has been baked, and is placed in contact with the edges of the opposing connecting plates (a), (a) to limit the allowable deformation range in the rubber material shearing direction.
The combine threshing device support structure according to claim 1 or 2, comprising: c).