Synchronous chain wheel transmission assembly

Abstract

The utility model discloses a synchronous chain wheel transmission assembly which comprises a seedling tray transmission shaft and a locking piece installed on the outer side of the seedling tray transmission shaft. A seedling cup tachometer is mounted in the locking piece in a locking manner, a synchronous chain wheel shaft is arranged at the upper part of the seedling cup tachometer, a synchronous chain wheel is mounted outside the synchronous chain wheel shaft in a sleeving manner, and a plurality of groups of pin shafts are mounted at the top end of the synchronous chain wheel at equal radian. The rotating speed of the synchronous chain wheel shaft is obtained through a seedling cup rotating speed device, so that the synchronous chain wheel is matched with an external chain to throw seedlings into the discharging opening at a proper speed, and the synchronous chain wheel shaft is further limited through a stamping triangular bearing seat connected to the outside in a bolted mode. A pin shaft mounted at the top end of the synchronous chain wheel can be matched with the synchronous adjusting wheel, and the specific use position relation between the synchronous chain wheel and an external chain is specifically controlled through rotating operation of a worker, so that the seedling putting work of each group of seedling putting boxes can be completed at the same speed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a synchronous sprocket transmission component. Background Art

[0002] During the use of existing transplanters, the seedling cup and the seedling dropping position often do not correspond, which requires manual adjustment of the mechanical conveying position of the seedling cup, that is, by forcing the gear to rotate to synchronize it with the seedling dropping operation position of the seedling cup. However, after the transplanter has been running for a long time, repeated problems will still occur, causing the operator to repeat operations, increasing the workload, and not facilitating the long-term, stable and continuous operation of the transplanter, thereby reducing the working efficiency of the transplanter.

[0003] The Chinese utility model patent with authorization announcement number CN 215500439 U discloses a synchronous adjustment device for seedling cups of a transplanter, including a driving device and a driving gear installed on the output shaft of the driving device, the driving gear being rotatably connected to the output shaft, and a positioning member slidably connected along its axial direction is also provided on the outer side of the output shaft, the positioning member is arranged close to the driving gear, and the positioning member and the driving gear are connected by an axially separable positioning mechanism, and when the positioning mechanism is not separated, the driving gear rotates synchronously with the output shaft through the positioning member; by providing a positioning member connected to the driving gear by the positioning mechanism, the position of the adjusted driving gear can be fixed, and at the same time, the gear position can be quickly adjusted by using the separable positioning mechanism, and the driving gear position is irreversible after adjustment, and the position of the driving gear can be kept matching with the seedling dropping operation position of the seedling cup for a long time, so that the transplanter can continue to operate for a long time and stably.

[0004] The above-mentioned public documents do not have a structure for adjusting the chain position, so that the synchronous sprocket structure cannot correspond to the unloading position when participating in the seedling transportation, so a synchronous sprocket transmission component is now needed. Utility Model Content

[0005] The utility model aims to provide a synchronous sprocket transmission assembly, which can control the synchronous sprocket and the chain to adjust their positions by rotating the synchronous adjustment wheel to drive the pin shaft to rotate, so as to solve the technical problems mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a synchronous sprocket transmission assembly, comprising a seedling tray transmission shaft, and a locking member installed on the outside of the seedling tray transmission shaft;

[0007] A seedling cup speed controller is locked and installed inside the locking member, a synchronous sprocket shaft is arranged on the upper part of the seedling cup speed controller, a synchronous sprocket is sleeved and installed on the outer part of the synchronous sprocket shaft, and a plurality of pins are installed at the same arc on the top of the synchronous sprocket;

[0008] It also includes a synchronous adjustment wheel which is movably plugged into the upper part of the synchronous sprocket and is used to adjust the rotation of the synchronous sprocket.

[0009] Preferably, the bottom end of the synchronous sprocket shaft is inserted into the circular hole and is key-connected and installed with the seedling cup speed controller.

[0010] Preferably, the top of the seedling cup speed controller is located on the outer arc surface of the synchronous sprocket shaft and is sleeved with a spacing adjusting ring, and the outer arc surface of the synchronous sprocket shaft is located on the top of the spacing adjusting ring and is sleeved with a stamped triangular bearing seat.

[0011] Preferably, the upper and lower sides of the distance adjusting ring are respectively in contact with the seedling cup speed controller and the surface of the stamped triangular bearing seat, the stamped triangular bearing seat is bolted to the external fixed structure, and a hexagonal sleeve is inserted and installed on the top of the stamped triangular bearing seat.

[0012] Preferably, the synchronous adjustment wheel is inserted into the upper part of the synchronous sprocket shaft, and the tooth groove angle of the synchronous adjustment wheel matches the installation angle of the pin shaft, and the synchronous adjustment wheel is inserted into the upper part of the synchronous sprocket through the tooth groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The rotation speed of the synchronous sprocket shaft is controlled by the seedling cup speed meter, so that the synchronous sprocket and the external chain can cooperate to deliver the seedlings into the discharge port at a suitable speed. The stamped triangular bearing seat bolted to the outside can further limit the synchronous sprocket shaft, making the rotation of the synchronous sprocket shaft more stable and safe. The pin shaft installed on the top of the synchronous sprocket can cooperate with the synchronous adjustment wheel. Through the rotation operation of the staff, the specific use position relationship of the synchronous sprocket and the external chain can be specifically controlled, so that each group of seedling delivery boxes can complete the seedling delivery work at the same rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a left view of the overall structure of the utility model;

[0017] Figure 3 It is a top view of the overall structure of the utility model.

[0018] In the figure: 1. locking piece; 2. seedling cup speed meter; 3. spacing ring; 4. synchronous sprocket shaft; 5. hexagonal shaft sleeve; 6. stamped triangle bearing seat; 7. synchronous sprocket; 8. pin shaft; 9. synchronous adjustment wheel; 10. tooth groove; 11. seedling tray transmission shaft. DETAILED DESCRIPTION

[0019] 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.

[0020] The utility model provides: a synchronous sprocket transmission component, such as Figure 1-Figure 3 As shown, it includes a seedling tray transmission shaft 11, and a locking member 1 installed on the outside of the seedling tray transmission shaft 11; a seedling cup speed controller 2 is locked and installed inside the locking member 1, a synchronous sprocket shaft 4 is arranged on the upper part of the seedling cup speed controller 2, a synchronous sprocket shaft 4 is sleeved and installed on the outer side of the synchronous sprocket shaft 4, and a plurality of groups of pins 8 are installed at the top of the synchronous sprocket 7 with equal arcs; it also includes a synchronous adjustment wheel 9 movably plugged into the upper part of the synchronous sprocket 7 for adjusting the rotation of the synchronous sprocket 7.

[0021] Preferably, the bottom end of the synchronous sprocket shaft 4 is inserted into the circular hole and connected to the seedling cup tachometer 2 with a key for installation. The seedling cup tachometer 2 is installed on the outside of the seedling tray drive shaft 11 through a locking piece 1, so that the use position of the seedling cup tachometer 2 is fixed, thereby ensuring that the synchronous sprocket 7 can be stably engaged with the external chain for use, making the transportation of seedlings more stable and efficient. A circular hole is provided at the top of the seedling cup tachometer 2 to limit the synchronous sprocket shaft 4, so that the connection position of the synchronous sprocket shaft 4 and the seedling cup tachometer 2 is located inside the seedling cup tachometer 2, avoiding external contamination of the connection, which leads to a decrease in rotation sensitivity. At the same time, the seedling cup tachometer 2 can control the rotation rate of the synchronous sprocket shaft 4, making the transportation of seedlings more stable and safe, avoiding excessive rotation speed, and failing to accurately align with the feeding hole during the seedling feeding process, resulting in damage to the seedlings.

[0022] Furthermore, a distance adjusting ring 3 is installed on the outer arc surface of the synchronous sprocket shaft 4 at the top of the seedling cup speedometer 2, and a stamped triangular bearing seat 6 is installed on the outer arc surface of the synchronous sprocket shaft 4. The distance adjusting ring 3 installed on the top of the seedling cup speedometer 2 limits the use position of the stamped triangular bearing seat 6 of the synchronous adjustment wheel 9, so that the stamped triangular bearing seat 6 will not contact the seedling cup speedometer 2. At the same time, the installed distance adjusting ring 3 can also seal the circular hole set on the top of the seedling cup speedometer 2 to reduce the possibility of dust entering. The stamped triangular bearing seat 6 is bolted to the external structure, so that the use position of the stamped triangular bearing seat 6 is further limited, and the rotation of the synchronous sprocket shaft 4 is further limited by fixing the position of the stamped triangular bearing seat 6, so that the rotation of the synchronous sprocket shaft 4 is more stable and the shaking is reduced.

[0023] Furthermore, the upper and lower sides of the spacing ring 3 are respectively fitted with the surface of the seedling cup speedometer 2 and the stamped triangular bearing seat 6. The stamped triangular bearing seat 6 is bolted to the external fixed structure. A hexagonal shaft sleeve 5 is installed on the top of the stamped triangular bearing seat 6. The hexagonal shaft sleeve 5 installed on the top is used to seal the top of the stamped triangular bearing seat 6 to prevent grease and dust from entering the inside of the stamped triangular bearing seat 6 during use and causing wear on the ball bearing, thereby reducing the sensitivity of the rotation of the synchronous sprocket shaft 4 and ensuring the meshing of the synchronous sprocket 7 with the external chain during the rotation of the synchronous sprocket shaft 4, making the seedling transportation more stable and safe.

[0024] It is worth mentioning that the synchronous adjustment wheel 9 is inserted into the upper part of the synchronous sprocket shaft 4, and the angle of the tooth groove 10 opened on the synchronous adjustment wheel 9 matches the installation angle of the pin shaft 8. The synchronous adjustment wheel 9 is plugged into the upper part of the synchronous sprocket 7 through the tooth groove 10. The pin shaft 8 installed on the top of the synchronous sprocket 7 is used for the staff to control the synchronous adjustment wheel 9 to rotate and adjust the position of the external chain when the synchronous sprocket 7 rotates, so that the installation spacing of each group of seedling delivery boxes is the same, and the seedling delivery boxes maintain a uniform rate of seedling delivery. The angle of the tooth groove 10 opened on the synchronous adjustment wheel 9 can ensure that when the synchronous adjustment wheel 9 is inserted into the synchronous sprocket shaft 4 at any angle, it can be plugged with each group of connecting pin shafts 8, so that the synchronous adjustment wheel 9 can more conveniently control the rotation of the synchronous sprocket 7 and adjust the use position relationship between the synchronous sprocket 7 and the external chain.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Synchronous sprocket transmission assembly, characterized in that: It comprises a seedling tray transmission shaft (11), and a locking member (1) installed on the outside of the seedling tray transmission shaft (11); The locking member (1) is internally locked with a seedling cup speed controller (2), a synchronous sprocket shaft (4) is disposed on the upper portion of the seedling cup speed controller (2), a synchronous sprocket (7) is sleeved and mounted on the outer portion of the synchronous sprocket shaft (4), and a plurality of groups of pins (8) are mounted at the top of the synchronous sprocket (7) in equal arcs; It also includes a synchronous adjustment wheel (9) movably plugged into the upper part of the synchronous sprocket (7) for adjusting the rotation of the synchronous sprocket (7).

2. The synchronous sprocket transmission assembly according to claim 1, characterized in that: The bottom end of the synchronous sprocket shaft (4) is inserted into the circular hole and is key-connected and installed with the seedling cup speed controller (2).

3. The synchronous sprocket transmission assembly according to claim 2, characterized in that: The top of the seedling cup speed meter (2) is located on the outer arc surface of the synchronous sprocket shaft (4) and is sleeved with a distance adjustment ring (3); the outer arc surface of the synchronous sprocket shaft (4) is located on the top of the distance adjustment ring (3) and is sleeved with a stamped triangular bearing seat (6).

4. The synchronous sprocket transmission assembly according to claim 3, characterized in that: The upper and lower sides of the spacing ring (3) are respectively fitted to the surface of the seedling cup speed meter (2) and the stamped triangular bearing seat (6); the stamped triangular bearing seat (6) is bolted to the external fixed structure; and a hexagonal shaft sleeve (5) is inserted and installed at the top of the stamped triangular bearing seat (6).

5. The synchronous sprocket transmission assembly according to claim 4, characterized in that: The synchronous adjustment wheel (9) is inserted into the upper part of the synchronous sprocket shaft (4), and the angle of the tooth groove (10) provided on the synchronous adjustment wheel (9) matches the installation angle of the pin shaft (8), and the synchronous adjustment wheel (9) is inserted into the upper part of the synchronous sprocket (7) through the tooth groove (10).

Images