Chain type sand fixation machine grass conveying device

Abstract

The invention relates to a grass conveying device of a chain type sand stabilization machine. Comprising a grass conveying frame, a driving shaft, a driven shaft, a first chain wheel, a second chain wheel, a first transmission chain and a plurality of first extension plates, wherein the driving shaft and the driven shaft are rotationally arranged on the grass conveying frame; the first chain wheel fixedly sleeves the middle of the driving shaft; the second chain wheel fixedly sleeves the middle of the driven shaft; the first bearing plates are fixedly arranged on the first extension plates respectively, the grass pressing mechanism is arranged on the grass conveying frame, the first carding mechanism is located on one side of the first transmission chain and arranged at one end of the driving shaft and one end of the driven shaft, and the second carding mechanism is located on the other side of the first transmission chain and arranged at the other end of the driving shaft and the other end of the driven shaft. The driving mechanism is arranged on the grass conveying frame and is used for driving the driving shaft to rotate; grass is conveyed mechanically to complete laying work, the efficiency is high, the labor intensity is greatly reduced, laying is uniform, and the effect of grass sand barriers is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying, and particularly relates to a grass conveying device of a chain - type sand - fixation machine. Background Art

[0002] Soil desertification is a major factor endangering the ecological environment. At the same time, there are huge wind energies and oil fields to be exploited in desert areas. Before developing desertified areas, it is necessary to carry out sand - fixation operations on quicksand first. Currently, the most common method for windbreak and sand - fixation is the straw checkerboard (raw materials: rice straw, wheat straw, reed) sand - fixation method. First, loose grass is laid, and then the loose grass is pressed into the sand from the middle by a rotary cutter to establish a grass - sand barrier, which is an effective measure. Since it is difficult to convey loose grass by machinery, the straw checkerboard laying vehicle mainly relies on manual laying, with low efficiency, high labor intensity, and poor uniformity in manual laying, which reduces the effect of the grass - sand barrier. Summary of the Invention

[0003] This part of the content of the present application is used to introduce concepts in a brief form, and these concepts will be described in detail in the following detailed implementation part. This part of the content of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0004] To solve the technical problems mentioned in the above background art section, some embodiments of the present application provide a grass conveying device for a chain-type sand fixation machine, including a grass conveying frame, a driving shaft and a driven shaft rotatably arranged on the grass conveying frame, a first sprocket fixedly sleeved in the middle of the driving shaft, a second sprocket fixedly sleeved in the middle of the driven shaft, a first transmission chain wound around the first sprocket and the second sprocket, a plurality of first extension plates fixedly arranged on the first transmission chain at equal intervals, a plurality of first supporting plates respectively fixedly arranged on the plurality of first extension plates, a grass pressing mechanism arranged on the grass conveying frame, a first combing mechanism located on one side of the first transmission chain and arranged at one end of the driving shaft and the driven shaft, a second combing mechanism located on the other side of the first transmission chain and arranged at the other end of the driving shaft and the driven shaft, and a driving mechanism arranged on the grass conveying frame and used to drive the driving shaft to rotate; the first combing mechanism and the second combing mechanism have the same structure and are symmetrically arranged. The first combing mechanism includes two third sprockets fixedly sleeved on the driving shaft, two fourth sprockets fixedly sleeved on the driven shaft corresponding to the two third sprockets one by one, a second transmission chain wound around one of the third sprockets and the fourth sprocket, a third transmission chain wound around the other third sprocket and the fourth sprocket, a plurality of second extension plates fixedly arranged on the second transmission chain at equal intervals, a plurality of third extension plates fixedly arranged on the third transmission chain corresponding to the plurality of second extension plates one by one, a plurality of fifth sprockets respectively rotatably arranged on the plurality of second extension plates, a plurality of sixth sprockets respectively rotatably arranged on the plurality of third extension plates, a plurality of connecting components with two ends respectively arranged on adjacent fifth sprockets, a fourth transmission chain wound around the fifth sprockets and the sixth sprockets, and a plurality of second supporting plates fixedly arranged on the fourth transmission chain at equal intervals; the grass conveying frame is inclined downward at an angle of 45°.

[0005] Specifically, a plurality of first grooves are provided on the first supporting plate, and a plurality of second grooves are provided on the second supporting plate; the plurality of first grooves are arranged in one-to-one correspondence with the plurality of second grooves.

[0006] Specifically, the connecting component includes a first base fixedly arranged at the center of the fifth sprocket, a second base fixedly arranged at the center of the adjacent fifth sprocket, and a spring telescopic rod with two ends respectively rotatably arranged on the first base and the second base.

[0007] Specifically, the first combing mechanism further includes a first belt shaft and a second belt shaft, a transmission belt wound around the first belt shaft and the second belt shaft, a plurality of pushing plates fixedly arranged on the transmission belt at equal intervals, and a first bevel gear fixedly sleeved on the first belt shaft.

[0008] Specifically, the pushing plate includes a plate body, a first belt pulley and a second belt pulley rotatably arranged at both ends of the plate body, and a first driven belt wound around the first belt pulley and the second belt pulley.

[0009] Specifically, the driving mechanism includes a first transmission gear and a second transmission gear fixedly sleeved on the driving shaft, a third transmission gear rotatably arranged on the hay conveying frame and meshed with the first transmission gear, a fourth transmission gear rotatably arranged on the hay conveying frame and meshed with the second transmission gear, a double-shaft motor fixedly arranged on the hay conveying frame and used to drive the third transmission gear and the fourth transmission gear to rotate in the same direction, a second bevel gear coaxially arranged with the third transmission gear and fixedly arranged thereon, and a third bevel gear coaxially arranged with the fourth transmission gear and fixedly arranged thereon; the first bevel gear on the first combing mechanism is meshed with the second bevel gear, and the first bevel gear on the second combing mechanism is meshed with the third bevel gear.

[0010] Specifically, the hay pressing mechanism includes two slide bars slidably arranged through the hay conveying frame, a lower pressing plate fixedly arranged at the lower ends of the two slide bars, a compression spring sleeved on the slide bars and fixedly arranged at both ends on the lower pressing plate and the hay conveying frame respectively, a third belt pulley and a fourth belt pulley rotatably arranged at both ends of the lower pressing plate, and a second driven belt wound around the third belt pulley and the fourth belt pulley.

[0011] Specifically, the hay pressing mechanism further includes an arc-shaped limiting plate coaxially arranged with the driven shaft and fixedly arranged at both ends on the hay conveying frame, a third driven belt wound around the arc-shaped limiting plate, and two slide rail grooves arranged on the hay conveying frame at both ends of the arc-shaped limiting plate; both ends of the third driven belt are slidably located in the two slide rail grooves respectively.

[0012] Specifically, a first guide plate is fixedly installed on the hay conveying frame, and a second guide plate is fixedly installed on the lower pressing plate.

[0013] The beneficial effects of the present invention are as follows:

[0014] The mechanical conveying of hay is adopted to complete the laying work, which has high efficiency, greatly reduces the labor intensity, and the laying is uniform, improving the effect of the grass sand barrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, purposes, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation to this application.

[0016] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and components are not necessarily drawn to scale.

[0017] In the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 The enlarged view of part A in Figure 1 ;

[0020] Figure 3 The side schematic view of the present invention;

[0021] Figure 4 is Figure 3 the sectional view along line A-A in

[0022] Figure 5 is Figure 4 the sectional view along line B-B in

[0023] Figure 6 is Figure 4 the sectional view along line C-C in

[0024] Figure 7 The partial structural schematic view of the present invention;

[0025] Figure 8 The structural schematic view of the first carding mechanism;

[0026] Figure 9 is Figure 8 the enlarged view of part B in

[0027] The description of the reference numerals is as follows:

[0028] 1. Straw conveying frame; 11. First deflector; 2. Straw pressing mechanism; 21. Slide bar; 22. Lower pressing plate; 221. Second deflector; 23. Compression spring; 24. Third belt pulley; 25. Fourth belt pulley; 26. Second driven belt; 27. Arc-shaped limiting plate; 28. Third driven belt; 29. Slide rail groove; 3. Driven shaft; 4. First carding mechanism; 41. Third sprocket; 42. Fourth sprocket; 43. Second transmission chain; 44. Third transmission chain; 45. Second extension plate; 46. Third extension plate; 47. Fifth sprocket; 48. Sixth sprocket; 49. Connection component; 491. First base; 492. Second base; 493. Spring telescopic rod; 410. Second supporting plate; 4101. Second groove; 420. Fourth transmission chain; 430. First belt shaft; 440. Second belt shaft; 450. Transmission belt; 460. Pusher plate; 4601. Plate body; 4602. First belt pulley; 4603. Second belt pulley; 4604. First driven belt; 470. First bevel gear; 5. Second carding mechanism; 6. Driving mechanism; 61. First transmission gear; 62. Second transmission gear; 63. Third transmission gear; 64. Fourth transmission gear; 65. Biaxial motor; 66. Second bevel gear; 67. Third bevel gear; 7. First extension plate; 8. First supporting plate; 81. First groove; 9. Driving shaft; 10. First sprocket; 11. Second sprocket; 12. First transmission chain. Detailed implementation manners

[0029] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not used to limit the protection scope of the present disclosure.

[0030] In addition, it should be noted that for ease of description, only parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0031] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence relationship of the functions performed by these devices, modules or units.

[0032] It should be noted that the modifications of "one" and "plural" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless clearly specified otherwise in the context, it should be understood as "one or more".

[0033] The present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0034] Refer to Figures 1 - 9As shown in the figure, a grass conveying device of a chain - type sand - fixing machine according to the present invention includes a grass conveying frame 1, a driving shaft 9 and a driven shaft 3 rotatably arranged on the grass conveying frame 1, a first sprocket 10 fixedly sleeved in the middle of the driving shaft 9, a second sprocket 11 fixedly sleeved in the middle of the driven shaft 3, a first transmission chain 12 wound around the first sprocket 10 and the second sprocket 11, a plurality of first extension plates 7 fixedly arranged at equal intervals on the first transmission chain 12, a plurality of first supporting plates 8 respectively fixedly arranged on the plurality of first extension plates 7, a grass pressing mechanism 2 arranged on the grass conveying frame 1, a first combing mechanism 4 located on one side of the first transmission chain 12 and arranged at one end of the driving shaft 9 and the driven shaft 3, a second combing mechanism 5 located on the other side of the first transmission chain 12 and arranged at the other end of the driving shaft 9 and the driven shaft 3, and a driving mechanism 6 arranged on the grass conveying frame 1 and used to drive the driving shaft 9 to rotate; the first combing mechanism 4 and the second combing mechanism 5 have the same structure and are symmetrically arranged. The first combing mechanism 4 includes two third sprockets 41 fixedly sleeved on the driving shaft 9, two fourth sprockets 42 fixedly sleeved on the driven shaft 3 corresponding to the two third sprockets 41 one by one, a second transmission chain 43 wound around one of the third sprockets 41 and the fourth sprocket 42, a third transmission chain 44 wound around the other third sprocket 41 and the fourth sprocket 42, a plurality of second extension plates 45 fixedly arranged at equal intervals on the second transmission chain 43, a plurality of third extension plates 46 fixedly arranged on the third transmission chain 44 corresponding to the plurality of second extension plates 45 one by one, a plurality of fifth sprockets 47 respectively rotatably arranged on the plurality of second extension plates 45, a plurality of sixth sprockets 48 respectively rotatably arranged on the plurality of third extension plates 46, a plurality of connecting components 49 with both ends respectively arranged on adjacent two fifth sprockets 47, a fourth transmission chain 420 wound around the fifth sprockets 47 and the sixth sprockets 48, and a plurality of second supporting plates 410 fixedly arranged at equal intervals on the fourth transmission chain 420; the grass conveying frame 1 is inclined downward at an angle of 45°. Loose grass is placed at one end of the grass conveying frame 1. The driving mechanism 6 is started to drive the driving shaft 9 to rotate, thereby driving the first sprocket 10 thereon to rotate, making the first transmission chain 12 run, driving the second sprocket 11 and the driven shaft 3 to rotate. The running of the first transmission chain 12 makes the plurality of first extension plates 7 run along, and makes the first supporting plates 8 on the first extension plates 7 run along. The loose grass is located on the first supporting plates 8, so as to convey the loose grass, conveying the loose grass at one end of the grass conveying frame 1 to the other end. During the conveying process of the loose grass, the grass pressing mechanism 2 squeezes the middle part of the loose grass, that is, fixes the loose grass on the plurality of first supporting plates 8 for conveying. Then, the first combing mechanism 4 and the second combing mechanism 5 comb the two ends of the loose grass, combing from the center of the loose grass to the two ends, avoiding individual loose grass from tilting, so that the loose grass is evenly laid on the sand. Using machinery to convey grass has high efficiency, greatly reduces labor intensity, runs at a constant speed during the conveying process, makes the grass laid evenly, and improves the effect of the grass sand barrier; the grass conveying frame 1 is inclined downward at an angle of 45°, so that one of its ends can be as close to the sand surface as possible, facilitating the grass laying work;Both ends of the loose straw are respectively located on the first carding mechanism 4 and the second carding mechanism 5, and they also play the role of supporting the loose straw. They run synchronously with the first drive chain 12. The driving shaft 9 also drives two third sprockets 41 on the first carding mechanism 4 to rotate, and the driven shaft 3 drives two fourth sprockets 42 on the first carding mechanism 4 to rotate, so that the second drive chain 43 and the third drive chain 44 run synchronously, causing the second extension plate 45 and the third extension plate 46 to follow, causing the fifth sprocket 47 and the sixth sprocket 48 to move, and causing a plurality of second support plates 410 to follow. The plurality of second support plates 410 support one end of the loose straw. The drive mechanism 6 can also push the second support plate 410 to move relative to the second extension plate 45, causing the fourth drive chain 420 to run and the plurality of second support plates 410 to move, enabling the carding work of the loose straw to be completed. The loose straw is carded from its center to one end, making the subsequent laying of the loose straw more uniform. The second carding mechanism 5 has the same structure as the first carding mechanism 4 and achieves the same effect, carding the other end of the loose straw. Through the setting of a plurality of connecting components 49, the plurality of fifth sprockets 47 rotate synchronously and in the same direction, so that the loose straw is carded during the transportation process.

[0035] Specifically, a plurality of first grooves 81 are provided on the first support plate 8, and a plurality of second grooves 4101 are provided on the second support plate 410. The plurality of first grooves 81 and the plurality of second grooves 4101 are arranged in one-to-one correspondence, enabling the loose straw to be located in the plurality of first grooves 81 and the plurality of second grooves 4101, facilitating the transportation of the loose straw.

[0036] Specifically, the connecting component 49 includes a first base 491 fixedly provided at the center of the fifth sprocket 47, a second base 492 fixedly provided at the center of the adjacent fifth sprocket 47, and a spring telescopic rod 493 whose two ends are respectively rotatably provided on the first base 491 and the second base 492. During the operation of the fourth drive chain 420, the fifth sprocket 47 and the sixth sprocket 48 rotate. The rotation of the fifth sprocket 47 drives the first base 491 to rotate, causing the spring telescopic rod 493 to rotate, and causing the second base 492 at the center of the adjacent fifth sprocket 47 to rotate, thereby causing the adjacent fifth sprockets 47 to rotate. The two ends of the spring telescopic rod 493 are respectively rotatably provided on the first base 491 and the second base 492. Thus, when the connecting component 49 at this position runs to the driven shaft 3 or the driving shaft 9, the spring telescopic rod 493 self-adaptively expands and contracts and the two ends self-adaptively rotate, maintaining the transmission relationship of the adjacent fifth sprockets 47.

[0037] Specifically, the first carding mechanism 4 further includes a first belt shaft 430 and a second belt shaft 440, a transmission belt 450 wound around the first belt shaft 430 and the second belt shaft 440, a plurality of push plates 460 equidistantly spaced and fixed on the transmission belt 450, and a first bevel gear 470 fixedly sleeved on the first belt shaft 430. The driving mechanism 6 drives the first bevel gear 470 to rotate, causing the first belt shaft 430 to rotate, the transmission belt 450 to operate, and the plurality of push plates 460 to move accordingly. The plurality of push plates 460 can drag the plurality of second supporting plates 410 to move, causing the fourth transmission chain 420 to operate. The plurality of second supporting plates 410 card the loose grass located thereon, and the plurality of second grooves 4101 also function to card the loose grass.

[0038] Specifically, the push plate 460 includes a plate body 4601, a first belt pulley 4602 and a second belt pulley 4603 rotatably provided at both ends of the plate body 4601, and a first driven belt 4604 wound around the first belt pulley 4602 and the second belt pulley 4603. Through the above settings, the wear between the push plate 460 and the second supporting plate 410 is reduced, the service life of the equipment is improved, and the overall grass conveying device operates more smoothly.

[0039] Specifically, the driving mechanism 6 includes a first transmission gear 61 and a second transmission gear 62 fixedly sleeved on the driving shaft 9, a third transmission gear 63 rotatably provided on the grass conveying frame 1 and meshed with the first transmission gear 61, a fourth transmission gear 64 rotatably provided on the grass conveying frame 1 and meshed with the second transmission gear 62, a dual-axis motor 65 fixedly provided on the grass conveying frame 1 and used to drive the third transmission gear 63 and the fourth transmission gear 64 to rotate in the same direction, a second bevel gear 66 coaxially fixed on the third transmission gear 63, and a third bevel gear 67 coaxially fixed on the fourth transmission gear 64. The first bevel gear 470 on the first carding mechanism 4 is meshed with the second bevel gear 66, and the first bevel gear 470 on the second carding mechanism 5 is meshed with the third bevel gear 67. The dual-axis motor 65 is commercially available. When the dual-axis motor 65 is started, it drives the third transmission gear 63 and the fourth transmission gear 64 to rotate synchronously and in the same direction, causing the first transmission gear 61 and the second transmission gear 62 to rotate, thereby driving the driving shaft 9. The third transmission gear 63 also drives the second bevel gear 66 to rotate, causing the first bevel gear 470 to rotate. Through the above settings, the first carding mechanism 4 and the second carding mechanism 5 can be synchronously driven.

[0040] Specifically, the grass pressing mechanism 2 includes two sliding rods 21 slidably arranged through the grass conveying frame 1, a lower pressing plate 22 fixedly arranged at the lower ends of the two sliding rods 21, a compression spring 23 sleeved on the sliding rods 21 and fixedly arranged at the lower pressing plate 22 and the grass conveying frame 1 at both ends respectively, a third pulley 24 and a fourth pulley 25 rotatably arranged at both ends of the lower pressing plate 22, and a second driven belt 26 wound around the third pulley 24 and the fourth pulley 25; through the arrangement of the compression spring 23, the pressure of the lower pressing plate 22 on the loose grass can be self-adapted. During the transportation process of the loose grass, the second driven belt 26 is driven to operate. Through the arrangement of the second driven belt 26, the friction between the loose grass and the lower pressing plate 22 can be reduced, so that the loose grass is stably conveyed.

[0041] Specifically, the grass pressing mechanism 2 further includes an arc-shaped limiting plate 27 coaxial with the driven shaft 3 and fixedly arranged at both ends on the grass conveying frame 1, a third driven belt 28 wound around the arc-shaped limiting plate 27, and two slide rail grooves 29 arranged on the grass conveying frame 1 at both ends of the arc-shaped limiting plate 27; both ends of the third driven belt 28 are slidably located in the two slide rail grooves 29; through the above arrangement, the loose grass at the driven shaft 3 can be guided, so that after the loose grass separates from the first supporting plate 8 and the second supporting plate 410, it can fall on the sand ground in a short distance, that is, the distance of the free fall of the loose grass is reduced, and the laying effect of the loose grass is improved.

[0042] Specifically, a first guide plate 11 is fixedly installed on the grass conveying frame 1, and a second guide plate 221 is fixedly installed on the lower pressing plate 22, which plays a guiding role for the loose grass.

[0043] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the embodiments of the present disclosure with similar functions.

Claims

1. A grass - conveying device of a chain - type sand - fixation machine, characterized in that: It includes a hay conveying rack (1), a driving shaft (9) rotatably arranged on the hay conveying rack (1), a driven shaft (3), a first sprocket (10) fixedly sleeved in the middle of the driving shaft (9), a second sprocket (11) fixedly sleeved in the middle of the driven shaft (3), a first transmission chain (12) wound around the first sprocket (10) and the second sprocket (11), a plurality of first extension plates (7) fixedly arranged on the first transmission chain (12) at equal intervals, a plurality of first supporting plates (8) respectively fixedly arranged on the plurality of first extension plates (7), a hay pressing mechanism (2) arranged on the hay conveying rack (1), a first combing mechanism (4) located on one side of the first transmission chain (12) and arranged at one end of the driving shaft (9) and the driven shaft (3), a second combing mechanism (5) located on the other side of the first transmission chain (12) and arranged at the other end of the driving shaft (9) and the driven shaft (3), and a driving mechanism (6) arranged on the hay conveying rack (1) and used to drive the driving shaft (9) to rotate; the first combing mechanism (4) and the second combing mechanism (5) have the same structure and are symmetrically arranged. The first combing mechanism (4) includes two third sprockets (41) fixedly sleeved on the driving shaft (9), two fourth sprockets (42) corresponding to the two third sprockets (41) one by one and fixedly sleeved on the driven shaft (3), a second transmission chain (43) wound around one of the third sprockets (41) and the fourth sprocket (42), a third transmission chain (44) wound around the other third sprocket (41) and the fourth sprocket (42), a plurality of second extension plates (45) fixedly arranged on the second transmission chain (43) at equal intervals, a plurality of third extension plates (46) corresponding to the plurality of second extension plates (45) one by one and fixedly arranged on the third transmission chain (44), a plurality of fifth sprockets (47) respectively rotatably arranged on the plurality of second extension plates (45), a plurality of sixth sprockets (48) respectively rotatably arranged on the plurality of third extension plates (46), a plurality of connecting components (49) with both ends respectively arranged on adjacent fifth sprockets (47), a fourth transmission chain (420) wound around the fifth sprocket (47) and the sixth sprocket (48), and a plurality of second supporting plates (410) fixedly arranged on the fourth transmission chain (420) at equal intervals; the hay conveying rack (1) is inclined downward at an angle of 45°.

2. The grass conveying device of a chain type sand fixation machine according to claim 1, characterized in that: A plurality of first grooves (81) are arranged on the first supporting plate (8), and a plurality of second grooves (4101) are arranged on the second supporting plate (410); the plurality of first grooves (81) and the plurality of second grooves (4101) are arranged in one-to-one correspondence.

3. The grass conveying device of a chain - type sand - fixing machine according to claim 1, characterized in that: The connecting component (49) includes a first base (491) fixedly arranged at the axis center of the fifth sprocket (47), a second base (492) fixedly arranged at the axis center of the adjacent fifth sprocket (47), and a spring telescopic rod (493) with both ends respectively rotatably arranged on the first base (491) and the second base (492).

4. The grass conveying device of a chain - type sand - fixing machine according to claim 1, characterized in that: The first combing mechanism (4) further includes a first belt shaft (430) and a second belt shaft (440), a transmission belt (450) wound around the first belt shaft (430) and the second belt shaft (440), a plurality of push plates (460) equidistantly spaced and fixed on the transmission belt (450), and a first bevel gear (470) fixedly sleeved on the first belt shaft (430).

5. The grass conveying device of a chain - type sand - fixing machine according to claim 4, characterized in that: The push plate (460) includes a plate body (4601), a first belt pulley (4602) and a second belt pulley (4603) rotatably arranged at both ends of the plate body (4601), and a first driven belt (4604) wound around the first belt pulley (4602) and the second belt pulley (4603).

6. The grass conveying device of a chain - type sand - fixing machine according to claim 4, characterized in that: The driving mechanism (6) includes a first transmission gear (61) and a second transmission gear (62) fixedly sleeved on the driving shaft (9), a third transmission gear (63) rotatably arranged on the hay conveying frame (1) and meshed with the first transmission gear (61), a fourth transmission gear (64) rotatably arranged on the hay conveying frame (1) and meshed with the second transmission gear (62), a double-shaft motor (65) fixedly arranged on the hay conveying frame (1) and used to drive the third transmission gear (63) and the fourth transmission gear (64) to rotate in the same direction, a second bevel gear (66) coaxially arranged with the third transmission gear (63) and fixedly arranged thereon, and a third bevel gear (67) coaxially arranged with the fourth transmission gear (64) and fixedly arranged thereon; the first bevel gear (470) on the first combing mechanism (4) is meshed with the second bevel gear (66), and the first bevel gear (470) on the second combing mechanism (5) is meshed with the third bevel gear (67).

7. The grass conveying device of a chain - type sand - fixing machine according to claim 1, wherein: The hay pressing mechanism (2) includes two sliding rods (21) slidably penetrating through the hay conveying frame (1), a lower pressing plate (22) fixedly arranged at the lower ends of the two sliding rods (21), a compression spring (23) sleeved on the sliding rods (21) and fixedly arranged at both ends on the lower pressing plate (22) and the hay conveying frame (1), a third belt pulley (24) and a fourth belt pulley (25) rotatably arranged at both ends of the lower pressing plate (22), and a second driven belt (26) wound around the third belt pulley (24) and the fourth belt pulley (25).

8. The grass conveying device of a chain - type sand - fixing machine according to claim 1, wherein: The hay pressing mechanism (2) further includes an arc-shaped limiting plate (27) coaxially arranged with the driven shaft (3) and fixedly arranged at both ends on the hay conveying frame (1), a third driven belt (28) wound around the arc-shaped limiting plate (27), and two slide rail grooves (29) arranged on the hay conveying frame (1) at both ends of the arc-shaped limiting plate (27); both ends of the third driven belt (28) are slidably located in the two slide rail grooves (29).

9. The grass conveying device of a chain - type sand - fixing machine according to claim 7, characterized in that: A first diversion plate (11) is fixedly installed on the hay conveying frame (1), and a second diversion plate (221) is fixedly installed on the lower pressing plate (22).

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