Chain box with overrun clutch for seeding machine

Abstract

The chain box comprises a chain box main body, a connecting cover is arranged above the chain box main body, a lubricating mechanism is arranged on the connecting cover, two chain wheels are arranged in the chain box main body, the two chain wheels are connected through a chain, the middle positions of the chain wheels are connected with an output shaft, and the output shaft is connected with the chain box main body. The lower portion of one output shaft is connected with the chain box main body through the overrun clutch, the other output shaft is connected with the chain box main body through the bearing, the overrun clutch is arranged, so that the seeding machine can rapidly respond when stopping or decelerating, and reverse movement caused by inertia is effectively prevented. By means of the design, the stability and controllability of the device are greatly improved, an operator can control the advancing direction and speed of the seeder more accurately, the out-of-control risk of the device under the unexpected condition is remarkably reduced, and higher safety guarantee is provided for the operator.

Description

Technical Field

[0001] The utility model relates to the technical field of chain boxes, in particular to a chain box with an overrunning clutch for a seed drill. Background Art

[0002] As an important agricultural machine, the core function of a seeder is to evenly distribute seeds across the field, ensuring healthy crop growth and high yields. To achieve this, the seeder must move smoothly and precisely across the field, requiring a reliable and efficient transmission structure to drive its movement. As a crucial component of this transmission structure, the chain box plays a crucial role in efficiently and stably transmitting power from the power source (typically a tractor) to the seeder.

[0003] However, in actual use, traditional chain boxes have some shortcomings. First, the chain box lacks an overrunning clutch and may experience uncontrolled reverse movement in some cases. This not only brings operational difficulties to the operator, but may also cause the seeder to deviate from the planned route, affecting the accuracy and uniformity of sowing. Second, due to the lack of a lubrication system, the chain and sprockets inside the chain box are severely worn after long-term operation. This not only reduces the service life of the chain box, but also increases the cost of maintenance and replacement, causing inconvenience to the operator. Currently, no effective solution has been proposed to address these problems in the relevant technology. Utility Model Content

[0004] In view of the problems in the related art, the utility model proposes a chain box with an overrunning clutch for a seed drill to overcome the above technical problems existing in the existing related art.

[0005] To this end, the specific technical solutions adopted in this utility model are as follows:

[0006] A chain box with an overrunning clutch for a seed drill comprises a chain box body, a connecting cover is provided above the chain box body, a lubrication mechanism is provided on the connecting cover, two sprockets are provided inside the chain box body, the two sprockets are connected by a chain, an output shaft is connected to the middle position of the sprockets, one output shaft is connected to the chain box body through an overrunning clutch at the bottom, and the other output shaft is connected to the chain box body through a bearing.

[0007] Furthermore, in order to be able to add grease to the sprocket chain connection, the lubrication mechanism includes an oil storage tank arranged on the connecting cover, the oil storage tank is connected to the gear pump input end through an oil suction pipe, the gear pump output end is connected to the three-way valve, the three-way valve is connected to the oil drain pipe, and one end of the oil drain pipe is connected to the connecting cover.

[0008] Furthermore, in order to add grease regularly and ensure lubrication at predetermined time intervals, the gear pump is connected to the rotating motor, and the gear pump and the rotating motor are electrically connected to the controller. The controller is located on the connection cover and has a built-in timing module.

[0009] Furthermore, the gear pump is connected to the connecting cover.

[0010] Furthermore, in order to facilitate the addition of grease into the oil tank, a sealing cover is detachably connected to the oil tank.

[0011] Furthermore, the connecting cover and the chain box body are connected by bolts.

[0012] Furthermore, the chain box body is arranged on the seed drill bracket, and there are two chain box bodies. The two chain box bodies are connected by a transmission shaft, and one chain box body is connected to the roller through a rotating shaft.

[0013] The beneficial effects of the utility model are:

[0014] (1) By setting up an overrunning clutch, the planter can respond quickly when stopping or slowing down, effectively preventing reverse movement caused by inertia. This design not only greatly improves the stability and controllability of the equipment, allowing operators to more accurately control the direction and speed of the planter, but also significantly reduces the risk of the equipment losing control in unexpected situations, providing higher safety for operators.

[0015] (2) By setting up a lubrication mechanism and a controller, the seed drill can realize the automatic lubrication function, thereby effectively reducing the wear of the sprocket and chain and extending the service life of the chain box body. The built-in timing module of the controller can automatically start the gear pump and the rotary motor according to the preset time interval. The start of the gear pump and the rotary motor will drive the oil extraction pipe to extract the grease inside the oil storage tank and accurately discharge it to the connection between the sprocket and chain through the oil discharge pipe. The design of this automatic lubrication system not only takes into account the uniform distribution of grease, but also avoids the pollution and waste caused by excessive lubrication by accurately controlling the discharge amount of grease. In addition, the setting of the timing module can flexibly adjust the lubrication frequency according to the actual working conditions to ensure that the sprocket and chain can be fully lubricated and protected in various working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 The present invention is a structural diagram of a chain box seeder bracket with an overrunning clutch for a seeder according to an embodiment of the present invention.

[0018] Figure 2 The utility model is a chain box with an overrunning clutch for a seed drill according to an embodiment of the present invention.

[0019] Figure 3 This is a connection diagram of a chain box main body with an overrunning clutch for a seed drill according to an embodiment of the present utility model.

[0020] Figure 4 The utility model is a chain box with an overrunning clutch for a seed drill according to an embodiment of the present invention.

[0021] In the picture:

[0022] 1. Chain box body; 2. Connecting cover; 3. Lubrication mechanism; 301. Oil storage tank; 302. Oil extraction pipe; 303. Gear pump; 304. Three-way valve; 305. Oil drain pipe; 4. Sprocket; 5. Chain; 6. Output shaft; 7. Overrunning clutch; 8. Bearing; 9. Rotating motor; 10. Controller; 11. Sealing cover; 12. Bolt; 13. Seeder bracket; 14. Drive shaft; 15. Roller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] According to an embodiment of the present utility model, a chain box with an overrunning clutch for a seed drill is provided.

[0025] Example 1

[0026] like Figure 1-Figure 4As shown, a chain box with an overrunning clutch for a seed drill according to an embodiment of the present invention includes a chain box body 1, a connecting cover 2 is provided above the chain box body 1, a lubricating mechanism 3 is provided on the connecting cover 2, two sprockets 4 are provided inside the chain box body 1, the two sprockets 4 are connected by a chain 5, an output shaft 6 is connected to the middle position of the sprocket 4, one output shaft 6 is connected to the chain box body 1 through an overrunning clutch 7 below, and the other output shaft 6 is connected to the chain box body 1 through a bearing 8, the lubricating mechanism 3 includes an oil storage tank 301 provided on the connecting cover 2, the oil storage tank 301 is connected to the input end of the gear pump 303 through an oil extraction pipe 302, the output end of the gear pump 303 is connected to the three-way valve 304, and the three-way valve 304 is connected to the oil discharge pipe 305 is connected, one end of the oil drain pipe 305 is connected to the connecting cover 2, the gear pump 303 is connected to the rotating motor 9, the gear pump 303 and the rotating motor 9 are electrically connected to the controller 10, the controller 10 is arranged on the connecting cover 2, the controller 10 has a built-in timing module, the gear pump 303 is connected to the connecting cover 2, the oil storage tank 301 is detachably connected to the sealing cover 11, and the sealing cover 11 is provided to facilitate the addition of grease to the inside of the oil storage tank 301, the connecting cover 2 and the chain box body 1 are connected by bolts 12, the chain box body 1 is provided on the seeder bracket 13, the number of the chain box body 1 is two, the two chain box bodies 1 are connected by a transmission shaft 14, and one chain box body 1 is connected to the roller 15 through a rotating shaft.

[0027] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0028] In actual application, the two chain box bodies 1 are assembled to form a transmission mechanism of the seed drill. When the chain box is in use, an overrunning clutch 7 is set. The working principle of the overrunning clutch 7 is to use the friction plate or wedge block inside it to automatically engage or disengage under specific conditions, thereby realizing the function of one-way power transmission. When the seed drill needs to move forward, the overrunning clutch 7 allows power to be transmitted from the power source to the transmission system; and when the seed drill needs to stop or slow down, the overrunning clutch 7 will automatically disengage to prevent the transmission of reverse power. In this way, even in a complex and changeable field environment, the seed drill can maintain good stability and controllability, avoiding accidents caused by unexpected situations. The device 300 is provided with a lubricating mechanism 3 and a controller 10, so that the seeder can realize the automatic lubrication function. The timing module built into the controller 10 can automatically start the gear pump 303 and the rotating motor 9 according to the preset time interval, and extract the liquid inside the oil storage tank 301 through the oil extraction pipe 302, and enter the oil discharge pipe 305 through the three-way valve 304. The oil discharge pipe 305 can enter the connecting cover 2, and grease can be added to the connection between the sprocket 4 and the chain 5. The sealing cover 11 can be disassembled to facilitate the addition of lubricating oil to the inside of the oil storage tank 301, thereby ensuring that there is sufficient grease inside the oil storage tank 301.

[0029] In summary, with the aid of the above technical solution of the present invention, by providing the overrunning clutch 7, the seed drill can respond quickly when stopped or decelerated, and effectively prevent reverse movement due to inertia. This design not only greatly improves the stability and controllability of the equipment, allowing operators to more accurately control the direction and speed of the seeder, but also significantly reduces the risk of equipment loss of control in unexpected situations, providing higher safety protection for operators. By setting the lubrication mechanism 3 and the controller 10, the seeder can realize the automatic lubrication function, thereby effectively reducing the wear of the sprocket 4 and the chain 5, and extending the service life of the chain box body 1. The timing module built into the controller 10 can automatically start the gear pump 303 and the rotating motor 9 according to the preset time interval. The start of the gear pump 303 and the rotating motor 9 will drive the oil extraction pipe 302 to extract the grease inside the oil storage tank 301 and discharge it accurately to the connection between the sprocket 4 and the chain 5 through the oil discharge pipe 305. The design of this automatic lubrication system not only takes into account the uniform distribution of grease, but also avoids the pollution and waste caused by excessive lubrication by precisely controlling the discharge amount of grease. The setting of the timing module can flexibly adjust the lubrication frequency according to the actual working conditions to ensure that the sprocket 4 and the chain 5 can be fully lubricated and protected in various working environments.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A chain box with an overrunning clutch for a seed drill, characterized in that: The invention comprises a chain box body (1), a connection cover (2) is provided above the chain box body (1), a lubrication mechanism (3) is provided on the connection cover (2), two sprockets (4) are provided inside the chain box body (1), the two sprockets (4) are connected by a chain (5), an output shaft (6) is connected to the middle position of the sprocket (4), one of the output shafts (6) is connected to the chain box body (1) through an overrunning clutch (7) at the bottom, and the other output shaft (6) is connected to the chain box body (1) through an overrunning clutch (7) at the bottom. The lubricating mechanism (3) is connected to the chain box body (1) via a bearing (8). The lubricating mechanism (3) includes an oil storage tank (301) provided on the connecting cover (2). The oil storage tank (301) is connected to the input end of a gear pump (303) via an oil extraction pipe (302). The output end of the gear pump (303) is connected to a three-way valve (304). The three-way valve (304) is connected to an oil drain pipe (305). One end of the oil drain pipe (305) is connected to the connecting cover (2).

2. A chain box with an overrunning clutch for a seed drill according to claim 1, characterized in that: The gear pump (303) is connected to the rotary motor (9), and the gear pump (303) and the rotary motor (9) are electrically connected to a controller (10). The controller (10) is arranged on the connection cover (2), and the controller (10) has a built-in timing module.

3. A chain box with an overrunning clutch for a seed drill according to claim 1, characterized in that: The gear pump (303) is connected to the connection cover (2).

4. A chain box with an overrunning clutch for a seed drill according to claim 1, characterized in that: The oil storage tank (301) is detachably connected to a sealing cover (11).

5. The chain box with overrunning clutch for a seed drill according to claim 1, characterized in that: The connection cover (2) is connected to the chain box main body (1) via bolts (12).

6. A chain box with an overrunning clutch for a seed drill according to claim 1, characterized in that: The chain box main body (1) is arranged on a seed drill support (13). There are two chain box main bodies (1). The two chain box main bodies (1) are connected via a transmission shaft (14). One chain box main body (1) is connected to a roller (15) via a rotating shaft.

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