Adjustable self-driven grass pressing device for pressing grass checks

Abstract

The adjustable self-driven grass pressing device comprises a grass pressing disc, a rotating shaft is arranged in the axial center of the grass pressing disc in a penetrating mode, check rings are symmetrically arranged on the portions, on the two sides of the grass pressing disc, of the rotating shaft, and fixing plates are arranged on the portions, on the outer sides of the check rings, of the rotating shaft. The two ends of the rotating shaft are connected with one ends of symmetrically-arranged connecting plates respectively, the other ends of the connecting plates are connected through connecting shafts, limiting bosses are arranged on the connecting shafts extending out of the connecting plates, a driving motor is arranged on the outer side of any connecting plate, and an output shaft of the driving motor is connected with the rotating shaft. Damping limiting mechanisms are symmetrically arranged on the outer sides of the connecting plates, the bottom ends of damping springs of the damping limiting mechanisms are connected with the connecting plates, and the top ends are connected with the telescopic ends of the lifting oil cylinders. Dynamic adjustment is carried out through the damping limiting mechanism so that the grass pressing disc can better adapt to the fluctuating desert topography, the depth of the grass pressing disc pressed into the sandy soil in the desert topography operation process with the gradient changing is kept within the grass grid pressing process requirement range, and the grass pressing quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of sand control equipment, in particular to an adjustable self-driven grass pressing device for grass grid pressing. Background Technique

[0002] Land desertification, also known as "desertification", generally refers to land degradation, which means that due to soil erosion, the topsoil loses fine particles (silt and clay particles) and gradually becomes sandy, or due to the invasion of flowing sand (silt and sand), the productivity of the land decreases or even loses.

[0003] At present, the sand barriers used for sand control mainly include grass grid sand barriers, clay sand barriers, fence sand barriers, etc. The grass grid sand barrier is widely used because of its environmental protection, convenient construction, simple operation and other advantages when pressing sand. And setting grass grid sand barriers in the mobile desert area can effectively increase the surface friction force, reduce or relieve the surface wind speed, thus inhibiting the flow of sand dunes and playing a role in fixing sand dunes. However, there are the following problems when using grass grid sand barriers: (1) The existing grass grid sand barrier machinery has a low degree of automation and mainly relies on manual or semi-mechanized operation. After the straw is laid on the sandy soil, the manual sand pressing force is insufficient and the sand fixation effect is poor; (2) Manual sand pressing requires the cooperation of multiple people, with a high labor intensity and a slow treatment progress; (3) The desert terrain is undulating, and the straw cannot be pressed into the sandy soil with the undulation of the desert terrain during the pressing process, resulting in the pressing depth of the straw not meeting the requirements and affecting the sand fixation effect. Content of the Utility Model

[0004] The utility model provides an adjustable self-driven grass pressing device for grass grid pressing, aiming at solving the problem that the pressing depth of the straw does not meet the requirements during the straw pressing process due to the undulating desert terrain and insufficient sand pressing force during the manual grass pressing process, which affects the sand fixation effect.

[0005] To achieve its purpose, the utility model adopts the following technical solutions:

[0006] An adjustable self-driven grass pressing device for grass grid pressing includes a grass pressing disc. A rotating shaft is provided through the axial center of the grass pressing disc. Retaining rings are symmetrically arranged on the rotating shaft on both sides of the grass pressing disc. A fixing plate is arranged on the rotating shaft outside the retaining ring; both ends of the rotating shaft are respectively connected to one end of symmetrically arranged connecting plates. The other ends of the connecting plates are connected through a connecting shaft. A limiting boss is arranged on the connecting shaft extending out of the connecting plate. And a driving motor is arranged outside any one of the connecting plates. The output shaft of the driving motor is connected to the rotating shaft; Shock absorption and limiting mechanisms are symmetrically arranged outside the connecting plate. The shock absorption and limiting mechanism includes a vertically arranged shock absorption spring. The bottom end of the shock absorption spring is connected to the connecting plate, and the top end is connected to the telescopic end of a lifting oil cylinder. The fixed end of the lifting oil cylinder is connected to the grass grid pressing equipment.

[0007] Furthermore, both ends of the rotating shaft are supported by bearing seats fixed on the connecting plates.

[0008] Furthermore, the outer periphery of the straw pressing disc is serrated.

[0009] Furthermore, the straw pressing depth of the straw pressing disc is 15 - 20 cm.

[0010] Furthermore, a connection hole 13 is provided at the top of the fixed end of the lifting oil cylinder 1, and the lifting oil cylinder 1 is connected to the straw checkerboard pressing device through the connection hole 13.

[0011] Furthermore, the fixing plate and the straw pressing disc are connected by bolts.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The straw pressing disc provided by the present utility model is serrated. In the structure with teeth, the contact position between the straw and the straw pressing disc during straw pressing changes from a surface to a point. When the lifting oil cylinder outputs the same pressure, the pressure on the contact point of the straw by the toothed structure is more concentrated. Combining with the physical properties of the straw, when the stress point is concentrated, the straw bends and is pressed into the sand. At the same time, during the process of pressing loose straw, the toothed straw pressing disc can preliminarily group the scattered straw, and each group increases the stress points of each straw according to the tooth profile structure, ensuring the qualification rate of the straw pressed into the sand.

[0014] 2. Retaining rings are provided on both sides of the straw pressing disc provided by the present utility model. On the one hand, it reduces the probability of sand entering the rotating shaft on both sides of the straw pressing disc. On the other hand, it can also spread the straws that are attached together during the process of pressing the straw, ensuring that the intermediate gap between the straws on both sides meets the requirements of the straw checkerboard after the straw is folded and pressed into the sand.

[0015] 3. The straw pressing device provided by the present utility model realizes self - drive through the driving motor, ensuring that the straw pressing device moves by itself without being driven by the pulling force of the whole sand control equipment during walking, ensuring the stability of the straw pressing process, and avoiding the influence of uneven speed during the whole machine driving process on the straw pressing depth of the pressing disc. Subsequently, adjustable frequency conversion control can also be selected for power input to achieve the purpose of linkage adjustment control according to different terrain and operation speed requirements, with a wide range of applications.

[0016] 4. The straw pressing device provided by the present utility model is provided with a shock - absorbing limit mechanism for dynamic adjustment to better adapt to the undulating and changeable desert terrain. During pressing, the shock - absorbing spring is compressed under force to adjust the straw pressing depth of the straw pressing device, realizing that the depth of the straw pressing disc pressed into the sand remains within the range required by the straw checkerboard pressing process during the operation process on the desert terrain with slope changes, ensuring the straw pressing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three - dimensional view of the adjustable self - driving straw pressing device of the present utility model;

[0018] Figure 2 isFigure 1 Rear view;

[0019] Figure 3 is Figure 1 right view of;

[0020] In the figure: 1 - lifting oil cylinder; 2 - limiting boss; 3 - shock absorption spring; 4 - grass pressing disc; 5 - connecting plate; 6 - shock absorption and limiting mechanism; 7 - driving motor; 8 - fixing plate; 9 - retaining ring; 10 - rotating shaft; 11 - connecting shaft; 12 - bearing seat; 13 - connecting hole. Specific embodiments

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] As Figures 1-3 shown, the present invention is an adjustable self - driving grass pressing device for grass grid pressing, including a grass pressing disc 4 with a toothed outer periphery. A rotating shaft 10 is provided through the axial center of the grass pressing disc 4. Retaining rings 9 are symmetrically arranged on the rotating shaft 10 on both sides of the grass pressing disc 4. At the same time, in order to ensure the strength of the connection rotation point of the grass pressing disc 4, a fixing plate 8 is provided on the rotating shaft 10 outside the retaining ring 9, and the fixing plate 8 is connected to the grass pressing disc 4 by bolts. Both ends of the rotating shaft 10 are respectively connected to one end of symmetrically arranged connecting plates 5. Specifically, both ends of the rotating shaft 10 are supported by bearing seats 12 bolt - connected to the connecting plates 5. The other ends of the connecting plates 5 are connected by a connecting shaft 11. A limiting boss 2 is provided on the connecting shaft 11 extending out of the connecting plate 5 to limit the distance between the two connecting plates 5. And a driving motor 7 is bolt - connected to the outside of any one of the connecting plates 5, and the output shaft of the driving motor 7 is connected to the rotating shaft 10. Shock absorption and limiting mechanisms 6 are symmetrically arranged on the outside of the connecting plates 5. The shock absorption and limiting mechanism 6 includes a vertically arranged shock absorption spring 3. The bottom end of the shock absorption spring 3 is connected to the connecting plate 5, and the top end is connected to the telescopic end of the lifting oil cylinder 1. A connecting hole 13 is provided at the top of the fixed end of the lifting oil cylinder 1, and the lifting oil cylinder 1 is connected to the grass grid pressing equipment through the connecting hole 13.

[0023] Before using the pressing equipment to press grass grids in the desert area, the adjustable self - driving grass pressing device of the present application is hung on the front end of the sand control equipment through the connecting hole 13, the rotation speed of the driving motor 7 is adjusted, the hydraulic pipe is connected to the lifting oil cylinder 1, and finally the stroke of the lifting oil cylinder 1 is adjusted to adjust the grass pressing depth of the grass pressing disc 4 of the adjustable self - driving grass pressing device to 15 cm, so that the pressing depth of the rice straw meets the requirements.

[0024] When the sand control equipment presses the rice straw, the driving motor 7 is started. The driving motor 7 drives the rotating shaft 16 to rotate, and the rotating shaft 16 drives the grass pressing disc 4 to rotate synchronously. During the rotation, the grass pressing disc 4 presses the rice straw into the sand. When the slope range of the sand surface is within 5° during the operation of the whole machine, the lifting oil cylinder 1 gives pressure to make the pressing depth of the rice straw reach the requirement of 15 cm; when the slope of the sand surface changes to more than 5°, as the slope increases, the area where the grass pressing disc 4 presses into the sand and the pressure it receives increase. After testing, when the pressure exceeds 1.7 kN, the shock-absorbing spring 3 compresses after receiving the pressure from the sand surface to adjust the sand pressing depth of the grass pressing device, so as to ensure that the grass pressing depth always meets the requirement of 15 cm for the rice straw pressing depth in the grass grid pressing process during the whole operation process.

Claims

1. An adjustable self-driven grass pressing device for making grass checkerboards, characterized in that: It includes a grass pressing disc (4), a rotating shaft (10) is provided through the axial center of the grass pressing disc (4), retaining rings (9) are symmetrically arranged on the rotating shaft (10) on both sides of the grass pressing disc (4), and a fixing plate (8) is arranged on the rotating shaft (10) outside the retaining ring (9); both ends of the rotating shaft (10) are respectively connected to one end of symmetrically arranged connecting plates (5), the other ends of the connecting plates (5) are connected through a connecting shaft (11), a limiting boss (2) is arranged on the connecting shaft (11) extending out of the connecting plate (5), and a driving motor (7) is arranged outside any one of the connecting plates (5), and the output shaft of the driving motor (7) is connected to the rotating shaft (10); shock-absorbing and limiting mechanisms (6) are symmetrically arranged outside the connecting plates (5), the shock-absorbing and limiting mechanisms (6) include vertically arranged shock-absorbing springs (3), the bottom end of the shock-absorbing spring (3) is connected to the connecting plate (5), the top end is connected to the telescopic end of the lifting oil cylinder (1), and the fixed end of the lifting oil cylinder (1) is connected to the grass grid pressing device.

2. The adjustable self-driving grass pressing device for making grass grids according to claim 1, wherein: Both ends of the rotating shaft (10) are supported by bearing seats (12) fixed on the connecting plates (5).

3. The adjustable self-driven grass pressing device for making grass grids according to claim 2, wherein: The outer circumference of the grass pressing disc (4) is serrated.

4. The adjustable self-driving grass pressing device for making grass grids according to claim 3, characterized in that: The grass pressing depth of the grass pressing disc (4) is 15 - 20 cm.

5. The adjustable self-driving grass pressing device for making grass checkerboard according to claim 4, wherein: A connecting hole (13) is arranged at the top of the fixed end of the lifting oil cylinder (1), and the lifting oil cylinder (1) is connected to the grass grid pressing device through the connecting hole (13).

6. An adjustable self-driving grass pressing device for making grass grids according to any one of claims 1-5, characterized in that: The fixing plate (8) and the grass pressing disc (4) are connected by bolts.

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