Rear-mounted harrow leveler for forage grass seeding machine

Abstract

The utility model discloses a forage grass seeder rear-mounted harrow leveler, which comprises a support frame and a harrow leveler body connected with the support frame through a chain, the support frame comprises a support frame body and a support rod arranged at the front end of the support frame body, and a limit body capable of placing the harrow leveler body is arranged at the end part of the support rod. The harrow leveler body comprises a connecting frame body and a plurality of rows of harrow groups which are arranged at the bottom of the connecting frame body in a staggered manner, the connecting frame body comprises a plurality of connecting cross rods which are arranged in parallel, the connecting cross rods are connected into a whole through fixing strips, and the end parts of the harrow teeth are of arc-shaped structures. The device has the characteristics of reasonable structural design, low manufacturing cost, strong practicability, high working efficiency, good using effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a rear-mounted harrow of a forage seeder. Background Art

[0002] With the development of science and technology, harrows, as a farm tool for tilling land, leveling land surface, weeding, root removal, covering soil, etc., are gradually mechanized. For example, application No. 200520019417.9 discloses a machine harrow, which specifically discloses that the machine harrow includes a connecting sleeve and a harrow body, harrow teeth are fixed on the harrow body, a rotating shaft connected to the connecting sleeve, a fixing sleeve is provided outside the rotating shaft, the fixing sleeve is connected to a floating weight adjustment frame, and the floating weight adjustment frame is connected to the harrow body. In the prior art, the harrow body is connected to the pulling mechanism of the driving device through a rigid component, namely the floating weight adjustment frame. However, when the driving device drives the harrow body to move during non-operating hours, if a bumpy road section is encountered, the movement of the driving device will drive the floating weight adjustment frame to move up and down. The harrow body in the prior art is very likely to contact the ground under the inertia of the floating weight adjustment frame, causing the harrow teeth of the harrow body to contact the ground and be damaged. Utility Model Content

[0003] In view of this, the utility model provides a rear-mounted harrow for a forage seeder, which can solve the technical problem in the prior art that when encountering a bumpy road section, the harrow body is very likely to contact the ground under the inertia of the connecting mechanism, causing the harrow teeth of the harrow body to contact the ground and be damaged.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A rear-mounted harrow for a forage seeder comprises a support frame and a harrow body connected thereto by a chain, the support frame comprising a support frame and a support rod arranged at the front end thereof, a limit body capable of placing the harrow body is arranged at the end of the support rod, the harrow body comprises a connecting frame and a plurality of rows of harrow groups staggeredly arranged at the bottom thereof, the connecting frame comprises a plurality of connecting cross bars arranged parallel to each other, the plurality of connecting cross bars are connected together by fixing strips, the harrow group comprises a plurality of harrow teeth arranged parallel to each other, and the ends of the harrow teeth are arranged as curved arc structures.

[0006] As an improvement of the above technical solution, the left and right ends of the support frame are respectively connected to the left and right ends of the harrow body through chains, the support rod is connected to the center position of the upper end surface of the harrow body through a chain, and the support frame is connected to a driving device.

[0007] As an improvement of the above technical solution, the number of the limiting bodies is set to two, and the two limiting bodies are arranged at the front end of the support frame in a front and rear symmetrical manner.

[0008] As an improvement of the above technical solution, there are three connecting cross bars, which are arranged parallel to each other. There are two fixing bars, which are respectively fixedly connected to the left and right ends of the three connecting cross bars. The connecting cross bar in the middle is fixedly connected to the front end of the support rod through a chain.

[0009] As an improvement of the above technical solution, the rake group is provided with two rows, and the rake teeth in the two rows of rake groups are arranged in a staggered manner. The tail ends of the rake teeth are welded to the side end surface of one of the connecting cross bars, and the curved structural ends of the rake teeth are welded to the bottom end surface of the previous connecting cross bar.

[0010] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0011] The utility model has the characteristics of reasonable structural design, low cost, strong practicability, high working efficiency, good use effect, etc., and through the chain setting, it is not only convenient to place the harrow body at the front end of the support rod during non-operating periods, but also the harrow body can be suspended above the ground at a suitable height, ensuring that the ends of the harrow teeth provided with the curved arc structure can be inserted into the soil at a suitable depth, so as to smoothly carry out the soil covering process for field sowing; through the setting of the limit body, it is not only prevented that the harrow body falls from the surface of the support rod to the ground when being driven by the driving equipment during non-operating periods, resulting in damage to the harrow teeth, but also prevented that the harrow body slides to the rear end of the support rod to affect the normal traveling state of the driving equipment;

[0012] Other beneficial effects of the present invention will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of the utility model placed on a support rod;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model placed on the ground;

[0016] Figure 3 This is a schematic diagram of the test structure of the harrow body of the utility model;

[0017] Among them: 1. support rod; 2. chain; 3. limiter; 4. connecting cross bar; 5. fixing bar; 6. rake teeth. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "above", "below", "front", "back", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figures 1 to 3 As shown, the utility model provides a rear-mounted harrow for a forage seeder.

[0022] It includes a support frame and a harrow body connected to the support frame through a chain 2, the support frame includes a support frame and a support rod 1 arranged at the front end thereof, the end of the support rod 1 is provided with a limiter 3 capable of placing the harrow body, the harrow body includes a connecting frame and a plurality of rows of harrow groups staggeredly arranged at the bottom thereof, the connecting frame includes a plurality of connecting cross bars 4 arranged in parallel to each other, the plurality of connecting cross bars 4 are connected together through a fixing bar 5, the harrow group includes a plurality of harrow teeth 6 arranged in parallel to each other, and the ends of the harrow teeth 6 are arranged in a curved arc structure;

[0023] In the embodiment of the utility model, the support frame provides a supporting and pulling effect for the harrow body, the left and right ends of the support frame are respectively connected to the left and right ends of the harrow body through the chain 2, the support rod 1 is connected to the center position of the upper end surface of the harrow body through the chain 2, the support frame is connected to a driving device, the driving device is a motor vehicle that can travel in the field or on the terrain of shallow hills and mountains, the driving device can pull the harrow body through the chain 2, so that the harrow body performs the soil covering process for field sowing; the chain 2 has the function of dragging the harrow body, and the arrangement of the chain 2 is convenient for placing the harrow body at the front end of the support rod 1 during non-operating periods;

[0024] In the embodiment described in the utility model, the number of the limiting bodies 3 is set to two, and the two limiting bodies 3 are arranged at the front end of the support frame in a front and rear symmetrical form. The limiting bodies 3 have the function of limiting the position of the rake harrow body on the surface of the support rod 1. Specifically, the rake harrow body is lifted and the connecting cross bar 4 located at the front end of the rake harrow body is erected between the two limiting bodies 3. At this time, the support rod 1 penetrates the rake harrow body and does not provide support for it. The setting of the limiting bodies 3 not only prevents the rake harrow body from falling from the surface of the support rod 1 to the ground when it is driven by the driving equipment during non-operating periods, causing damage to the rake teeth 6, but also prevents the rake harrow body from sliding to the rear end of the support rod 1 and affecting the normal travel state of the driving equipment.

[0025] In the embodiment of the utility model, the connecting frame can provide fixing and supporting functions for the harrow group, the number of the connecting cross bars 4 is three, the three connecting cross bars 4 are arranged in parallel with each other, the number of the fixing bars 5 is two, which are respectively fixedly connected to the left and right ends of the three connecting cross bars 4, and the connecting cross bar 4 located in the middle position is fixedly connected to the front end of the support rod 1 through the chain 2. This connection method enables the support rod 1 to suspend the harrow body above the ground at a suitable height through the chain 2, ensuring that the end of the harrow tooth 6 with a curved arc structure can be inserted into the soil at a suitable depth to smoothly sow in the field. Carry out soil covering process; the rake group is provided with two rows, and the rake teeth 6 in the two rows of rake groups are arranged in a staggered form, and the tail ends of the rake teeth 6 are welded to the side end surface of one of the connecting cross bars 4, and the curved structural ends of the rake teeth 6 are welded to the bottom end surface of the previous connecting cross bar 4. Specifically, one end of one of the rake teeth 6 is fixedly connected to the side end surface of the connecting cross bar 4 located at the rear end of the rake harrow body, and the curved structural end of the rake tooth 6 is fixedly connected to the bottom end surface of the connecting cross bar 4 located at the middle end of the rake harrow body. The rake teeth 6 with curved ends can effectively reduce the friction between the rake harrow body and the soil, thereby improving work efficiency and improving work efficiency;

[0026] The specific size of the rear-mounted harrow of the forage seeder and the number of the harrow teeth 6 are further described as follows:

[0027] The transverse width of the harrow body is 2.1 m, and the number of the two rows of harrow teeth 6 is 24 and 23 respectively.

[0028] In combination with the above content, the working principle of the utility model is:

[0029] During non-working hours, the connecting cross bar 4 located at the front end of the rake body can be installed between the two limit bodies 3 to ensure that the rake body can be firmly placed at the front end of the support rod 1, and the driving device is started to carry the rake body to the working area, and then the rake body is placed on the ground. At this time, the support rod 1 suspends the rake body above the ground at a suitable height through the chain 2 to ensure that the ends of the rake teeth 6 with curved structures can be inserted into the soil at a suitable depth, and the driving device is started again to pull the rake body through the chain 2. The rake body covers the sowing in the working area with the movement of the driving device.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rear-mounted harrow for a forage seeder, characterized in that: The utility model comprises a support frame and a harrow body connected thereto by a chain, wherein the support frame comprises a support frame and a support rod arranged at the front end thereof, the end of the support rod is provided with a limit body capable of placing the harrow body, the harrow body comprises a connecting frame and a plurality of rows of harrow groups staggeredly arranged at the bottom thereof, the connecting frame comprises a plurality of connecting cross bars arranged parallel to each other, the plurality of connecting cross bars are connected together by fixing strips, the harrow group comprises a plurality of harrow teeth arranged parallel to each other, and the ends of the harrow teeth are arranged as curved arc structures.

2. The rear-mounted harrow for a forage seeder according to claim 1, characterized in that: The left and right ends of the support frame are respectively connected to the left and right ends of the harrow body through chains, the support rod is connected to the center position of the upper end surface of the harrow body through chains, and the support frame is connected to a driving device.

3. A rear-mounted harrow for a forage seeder according to claim 1, characterized in that There are two limiters, which are arranged at the front end of the support frame in a front-rear symmetrical manner.

4. The rear-mounted harrow for a forage seeder according to claim 1, characterized in that There are three connecting cross bars, which are arranged parallel to each other. There are two fixing bars, which are respectively fixedly connected to the left and right ends of the three connecting cross bars. The connecting cross bar in the middle is fixedly connected to the front end of the support rod through a chain.

5. The rear-mounted harrow for a forage seeder according to claim 1, characterized in that The rake group is provided with two rows, and the rake teeth in the two rows are arranged in a staggered manner. The tail ends of the rake teeth are welded to the side end surface of one of the connecting cross bars, and the curved arc structure ends of the rake teeth are welded to the bottom end surface of the previous connecting cross bar.

Images