JPH0574201U - Crushing equipment to be attached to the tractor - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a folding structure of an earth breaking device mounted on a tractor. [Structure] A mast frame to be attached to a tractor and a crusher to be attached to a tractor configured so that a crushed body is divided into two parts on both left and right sides of the mast frame and can be folded backward. An agricultural soil crushing device to be mounted on a tractor, characterized in that an engaging piece and an engaging receiving portion are provided for automatic fixing, and the engaging fixing portion has a lightweight and simple structure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixing structure for a crusher mounted on a tractor when the crusher is folded.

[0002]

[Prior Art]

 Various structures have been proposed in which a wide crushing device that protrudes from the width of the tractor body when folded is mounted on the rear part of the tractor. Even in the same applicant, Japanese Utility Model Laid-Open No. 2-148 216 is a structure that is diagonally folded upward to the rear side, and Japanese Patent Laid-Open No. 2-295402 is a structure that is folded horizontally in the rear direction. A fixed configuration is presented.

[0003]

[Problems to be solved by the device]

 In the latter of the above-mentioned conventional techniques, a divided crushed body fixing device is arranged in the vicinity of a rotating part, and an operating device of the fixing device is arranged at a side end of this crushed body to perform remote control from the outside of the folded device. It is a technology. However, with this configuration, when moving, most of the gravity of the crushed body concentrates on the fixing device in the vicinity of the rotating portion as a vibration impact, which causes a problem such as damage to the crushing apparatus. Therefore, the present invention is to solve the problem by providing a fixing device at the side end of the crushed body.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in a crushing device in which a crushed body is divided into two and can be folded at both left and right sides of a mast frame mounted on a tractor, the side ends of the divided crushed bodies are respectively attached to the rear surface side. The present invention provides an agricultural soil crushing device to be mounted on a tractor, which is characterized in that it is automatically engaged and fixed when folded by arranging a receiving portion and an engaging piece.

[0005]

[Action]

 When the crusher according to the present invention is mounted on a tractor and folded, when one crushed body is folded backward and then the other crushed body is folded backward, the engagement projecting on the rear surface of each crushed body side end is engaged. The piece and the engagement receiving portion are automatically fitted and fixed to each other. When moving, the force of the connected crushed body in the opening direction is applied to the fixed part, but the self-weight impact force of the crushed body itself, which has been a problem in the conventional technology, is eliminated, so that it can be made lightweight.

[0006]

【Example】

 The configuration will be described based on the drawings in which the present invention is implemented. FIG. 1 is a plan view of the present invention, in which the phantom line indicates the position of the crushed body when folded. FIG. 2 is a mechanism diagram showing the principle of folding. The pipe frame I14 is projected to the left and right of the mission 2, and the outer bracket 8 is formed at the end of the pipe frame I14. A pipe frame II16 is arranged concentrically with the pipe frame I14, and the crushed body 13 is supported by the transmission case 17 and the auxiliary frame 20. At the rear part of the pipe frame I14, the outer bracket 8 is provided with a support shaft 9 which is inclined in the traveling direction. An inner bracket 15 is fixed to the inner end of the pipe frame II16, and is inserted into the outer bracket 8 so that a crushed body 13 can be folded obliquely rearward via a support shaft 9. A hook plate 18 is provided at the rear portion of the outer bracket 8, and a coil-shaped elastic body 10 is laid over a fixed plate 19 provided at the rear portion of the pipe frame II16. An input shaft 3 is a tractor PTO 6 to which power is transmitted by a universal joint. Reference numeral 21 is a clutch body which acts on and off the transmission shaft penetrating the pipe frames I and II. Reference numeral 17 denotes a transmission case for rotating and transmitting the crushed body 13. Reference numeral 22 denotes an engagement receiving portion which is provided so as to project to the rear surface side of one side end portion of the crushed body 13, and an engaging piece 23 is provided on the other crushed body 13 to be fixedly engaged at the position of the phantom line in FIG. Has been done. FIG. 3 is a rear view of the main part, and FIG. 4 is a perspective view of parts of the main part. The engagement piece 23 is provided with a vertical pin 28. In the engagement receiving portion 22, a locking plate 25 having an engaging hole is rotatably mounted on the upper part of a V-shaped guide plate 24 by a lateral pin 26. A winding spring 27 is attached to the lateral pin 26 and elastically attaches the locking plate 25 to the guide plate 24. Next, the operation during engagement will be described. The vertical pin 28 of the engagement piece 23 approaches the engagement receiving portion 22. At this time, since the leading edge of the engaging piece 23 is inclined downward, it moves to the lower side of the guide plate 24 which is divergent. Simultaneously, the vertical pin 28 pushes up the locking plate 25 upwards, absorbs the mechanical deviation of the left and right crushed bodies 13 following the side of the guide plate 24 in the shape of an inverted C-shape, and moves to the center. Finally, it is fitted into the locking hole of the locking plate 25 and fixed. At this time, the locking plate 25 is always elastically attached to the guide plate 24 by the winding spring 27. FIG. 5 is a side view in which the crusher of the present invention is attached to a tractor, and a part of it is omitted. The mast frame 1 is connected to the top link 4 and the lower link 7, and is connected by the hydraulic arm 5 to move up and down. The crushed body 13 is provided with a cover 11 on the upper part and a leveler 12 on the rear surface part, and the imaginary line shows a state of being folded obliquely backward by the balancer force of the elastic body 10 with the support shaft 9 as a fulcrum. Although it is in the position of the solid line of the crushed body 13 during the actual work, it is integrally fixed by a fixing device as appropriate.

[0007]

【effect】

 As described above, since the engaging receiving portion and the engaging piece are provided so as to project to the rear surface side of each side end portion of the crushed earth body divided into two, it is safe to be automatically engaged and fixed during folding. Moreover, since it is on the side end side, the fixing force may be small, so there is a real advantage that the fixing part can be made lightweight and simple.

[0008]

[Brief description of drawings]

FIG. 1 is a plan view showing a folded state of the present invention.

FIG. 2 is a rear view showing the folding mechanism.

[Figure 3] Rear view of the main part

FIG. 4 is a perspective view of the main parts

[Fig. 5] A tractor installation drawing of the soil breaking device embodying the present invention

[Explanation of symbols] 1 mast frame 14 pipe frame I 2 mission 15 inner bracket 3 input shaft 16 pipe frame II 4 top link 17 transmission case 5 hydraulic arm 18 hook plate 6PTO 19 fixing plate 7 lower link 20 auxiliary frame 8 outer bracket 21 Clutch body 9 Support shaft 22 Engagement receiving portion 10 Elastic body 23 Engaging piece 11 Cover 24 Guide plate 12 Leveler 25 Locking plate 13 Crushed body 26 Horizontal pin 27 Winding spring 28 Vertical pin

Claims (1)

[Scope of utility model registration request] 1. A crushing device in which a crushed body is divided into two and can be folded on both left and right sides of a mast frame attached to a tractor, and an engaging receiving portion is provided on each of rear sides of side ends of the divided crushed bodies. An agricultural soil crushing device to be mounted on a tractor, which is characterized by being automatically engaged and fixed when an engaging piece is arranged and folded.