Agricultural machinery reduction gear

Abstract

The utility model discloses a kind of reduction gear for agricultural machinery, it is related to reduction gear technical field.The utility model includes reduction gear main body, input bearing cover and DC motor, input bearing cover is screwed in reduction gear main body one surface, DC motor is fixedly connected in input bearing cover one surface, DC motor peripheral side surface is equipped with fairing, heat sink is welded on the upper surface of fairing, current collector ring is welded in the inside of fairing, current collector ring is annular plate body structure, baffle is welded in current collector ring one surface, baffle forms flow guide passage between two, the surface of fairing is equipped with several exhaust holes.The utility model passes through fairing, heat sink and flow guide passage structure, it is convenient to carry out circulation circulation between the air of fairing and DC motor, and cooperate flow guide passage to make airflow evenly pass through DC motor surface, carry away heat generated when DC motor works, improve the heat dissipation effect for DC motor, ensure that the long time use and service life of device.

Description

Technical Field

[0001] This utility model belongs to the field of speed reducer technology, and in particular relates to a speed reducer for agricultural machinery. Background Technology

[0002] A speed reducer is an independent component consisting of gear drives, worm drives, or gear-worm drives enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between a prime mover and a driven machine. It plays a role in matching speeds and transmitting torque between the prime mover and the driven machine or actuator, and its applications are extremely widespread in modern machinery.

[0003] In the existing technology, the speed reducers used in agricultural machinery generally work outdoors for a long time. When working in hot weather, the motor temperature is prone to rise. Prolonged high temperature affects its normal operation and can easily damage the machine itself. Therefore, a speed reducer for agricultural machinery is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a speed reducer for agricultural machinery to solve existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a speed reducer for agricultural machinery, comprising a speed reducer body, an input bearing cover, and a DC motor. The input bearing cover is screwed onto one surface of the speed reducer body, and the DC motor is fixedly connected to one surface of the input bearing cover. A flow guide is installed on the peripheral side of the DC motor, and a heat dissipation box is welded to the upper surface of the flow guide. A flow collecting ring is welded inside the flow guide, and the flow collecting ring has an annular plate structure. A partition is welded to one surface of the flow collecting ring, and flow channels are formed between each pair of partitions. A plurality of exhaust holes are opened on one surface of the flow guide, and the positions of the exhaust holes correspond to the positions of the flow channels. A connecting flange is welded to the other surface of the flow guide.

[0007] Furthermore, a number of fixing bolts are screwed onto one surface of the connecting flange, one end of which is screwed to the input bearing cover, and the collector ring is disposed on one side of the heat sink.

[0008] Furthermore, the interior of the heat sink is connected to the interior of the air guide shroud, and several heat dissipation grooves are provided on the upper surface of the heat sink. An installation cross plate is welded inside the heat sink.

[0009] Furthermore, a cooling motor is fixedly mounted on the upper surface of the mounting plate, and a rotating shaft is mounted on the output end of the cooling motor. One end of the rotating shaft is connected to several fan blades via a keyway.

[0010] Furthermore, an output bearing cover is screwed onto another surface of the reducer body, a connecting base is welded onto the lower surface of the output bearing cover, and a shock-absorbing plate is screwed onto one end of the connecting base. The shock-absorbing plate has a concave plate structure.

[0011] Furthermore, a damper is screwed onto the upper surface of the damping plate, and a contact plate is welded onto the upper surface of the damper. The contact plate has an arc-shaped plate structure and contacts one end of the lower surface of the DC motor.

[0012] Furthermore, a damping spring is installed between the lower surface of the contact plate and the upper surface of the damping plate, and the damping spring is wound around the periphery of the damper.

[0013] Furthermore, the upper surface of the output bearing cover is provided with an oil injection hole, an oil injection plug is installed inside the oil injection hole, an oil sealing cap is screwed to one surface of the oil injection plug, a bearing is installed inside the oil sealing cap, and an output shaft is rotatably installed inside the bearing.

[0014] This utility model has the following beneficial effects:

[0015] This invention utilizes a structure consisting of a shroud, a heat sink, and a flow channel to facilitate air circulation between the shroud and the DC motor. The flow channel, in conjunction with the shroud, ensures that the airflow passes evenly over the surface of the DC motor, carrying away the heat generated during operation and improving the heat dissipation effect on the DC motor. This guarantees the long-term use and service life of the device.

[0016] This invention uses a shock-absorbing plate, damper, and shock-absorbing spring structure to buffer the vibration generated by the DC motor during operation, reduce the vibration generated by the DC motor during operation, and improve the stability of the device during use.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a speed reducer for agricultural machinery according to this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the air guide and heat sink in this utility model;

[0021] Figure 3This is a top view schematic diagram of a speed reducer for agricultural machinery according to this utility model;

[0022] Figure 4 This is a rear view structural diagram of a speed reducer for agricultural machinery according to this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Gearbox body; 2. Input bearing cover; 3. DC motor; 4. Flow guide; 401. Connecting flange; 402. Fixing bolt; 403. Flow collector ring; 404. Flow guide channel; 405. Exhaust port; 5. Radiator box; 501. Radiator slot; 502. Mounting plate; 503. Radiator motor; 504. Rotating shaft; 505. Fan blade; 6. Output bearing cover; 7. Connecting base; 8. Vibration damping plate; 801. Damper; 802. Vibration damping spring; 803. Contact plate; 9. Oil filler plug; 10. Oil seal cap; 11. Output shaft. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please see Figures 1-4As shown, this utility model is a speed reducer for agricultural machinery, including a speed reducer body 1, an input bearing cover 2, and a DC motor 3. The input bearing cover 2 is screwed onto one surface of the speed reducer body 1, and the DC motor 3 is fixedly connected to one surface of the input bearing cover 2. A flow guide shroud 4 is installed on the periphery of the DC motor 3, and a heat dissipation box 5 is welded to the upper surface of the flow guide shroud 4. A current collecting ring 403 is welded inside the flow guide shroud 4. The current collecting ring 403 has an annular plate structure, and a partition is welded to one surface of the current collecting ring 403, forming a flow guiding channel 404 between the partitions. The flow guide shroud 4 has several exhaust holes 405 on one surface, and the positions of the exhaust holes 405 correspond to the positions of the flow guide channel 404. The other surface of the flow guide shroud 4 is welded with a connecting flange 401. The flow guide shroud 4 is made of heat-conducting material, which facilitates the circulation of air between the flow guide shroud 4 and the DC motor 3. In conjunction with the flow guide channel 404, the airflow passes evenly over the surface of the DC motor 3, carrying away the heat generated by the DC motor 3 during operation, improving the heat dissipation effect of the DC motor 3, and ensuring the long-term use and service life of the device.

[0028] Several fixing bolts 402 are screwed onto one surface of the connecting flange 401. One end of the fixing bolts 402 is screwed and fixed to the input bearing cover 2. The collector ring 403 is set on one side of the heat sink 5. The interior of the heat sink 5 is connected to the interior of the guide shroud 4. Several heat dissipation grooves 501 are opened on the upper surface of the heat sink 5. A mounting plate 502 is welded inside the heat sink 5. A heat dissipation motor 503 is fixedly installed on the upper surface of the mounting plate 502. A rotating shaft 504 is installed at the output end of the heat dissipation motor 503. Several fan blades 505 are connected to one end of the rotating shaft 504 via a keyway.

[0029] The other surface of the reducer body 1 is screwed with an output bearing cover 6. The lower surface of the output bearing cover 6 is welded with a connecting base 7. One end of the connecting base 7 is screwed with a damping plate 8. The damping plate 8 has a concave plate structure. The upper surface of the damping plate 8 is screwed with a damper 801. The upper surface of the damper 801 is welded with a contact plate 803. The contact plate 803 has an arc plate structure and contacts one end of the lower surface of the DC motor 3.

[0030] A damping spring 802 is installed between the lower surface of the contact plate 803 and the upper surface of the damping plate 8. The damping spring 802 is wrapped around the damper 801 to buffer the vibration generated when the DC motor 3 is working, reduce the vibration generated when the DC motor 3 is working, and improve the stability of the device during use.

[0031] The upper surface of the output bearing cover 6 is provided with an oil injection hole, and an oil injection plug 9 is installed inside the oil injection hole. An oil sealing cap 10 is screwed to one side of the oil injection plug 9. A bearing is installed inside the oil sealing cap 10, and an output shaft 11 is rotatably installed inside the bearing.

[0032] Please see Figures 1-4As shown, this utility model is a speed reducer for agricultural machinery. Its usage method is as follows: When the speed reducer is working, the cooling motor 503 inside the heat dissipation box 5 is started. The cooling motor 503 drives the rotating shaft 504 to rotate at a constant speed. When the rotating shaft 504 rotates, it drives the fan blades 505 to rotate. When the fan blades 505 rotate, they draw the external airflow into the guide shroud 4 through the heat dissipation groove 501. The airflow first passes through one side of the collecting ring 403. As the fan blades 505 continuously draw in the airflow, the gas passes through the guide channel 404 set on one side of the collecting ring 403 in sequence, and finally is discharged through the exhaust hole 405. This allows the airflow to pass evenly through the surface of the DC motor 3, carrying away the heat generated when the DC motor 3 is working. Then, when the DC motor 3 vibrates during operation, the damper 801 buffers it to reduce the vibration generated when the DC motor 3 is working.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A speed reducer for agricultural machinery, comprising a speed reducer body (1), an input bearing cover (2), and a DC motor (3), characterized in that: The input bearing cover (2) is screwed onto one surface of the reducer body (1). The DC motor (3) is fixedly connected to one surface of the input bearing cover (2). A flow guide cover (4) is installed on the periphery of the DC motor (3). A heat sink (5) is welded to the upper surface of the flow guide cover (4). A flow collecting ring (403) is welded inside the flow guide cover (4). The flow collecting ring (403) is an annular plate structure. A partition is welded to one surface of the flow collecting ring (403). A flow guiding channel (404) is formed between the two partitions. A plurality of exhaust holes (405) are opened on one surface of the flow guide cover (4). The position of the exhaust holes (405) corresponds to the position of the flow guiding channel (404). A connecting flange (401) is welded to the other surface of the flow guide cover (4).

2. The reducer for agricultural machinery according to claim 1, characterized in that, The connecting flange (401) has several fixing bolts (402) screwed onto one surface. One end of the fixing bolts (402) is screwed and fixed to the input bearing cover (2). The collector ring (403) is located on one side of the heat sink (5).

3. The reducer for agricultural machinery according to claim 2, characterized in that, The interior of the heat sink (5) is connected to the interior of the flow guide (4). Several heat dissipation grooves (501) are provided on the upper surface of the heat sink (5). An installation cross plate (502) is welded inside the heat sink (5).

4. A speed reducer for agricultural machinery according to claim 3, characterized in that, A cooling motor (503) is fixedly installed on the upper surface of the mounting plate (502). A rotating shaft (504) is installed at the output end of the cooling motor (503). A number of fan blades (505) are connected to one end of the rotating shaft (504) via a keyway.

5. A speed reducer for agricultural machinery according to claim 1, characterized in that, The other surface of the reducer body (1) is screwed with an output bearing cover (6), and a connecting base (7) is welded to the lower surface of the output bearing cover (6). A damping plate (8) is screwed to one end of the connecting base (7), and the damping plate (8) is a concave plate structure.

6. A speed reducer for agricultural machinery according to claim 5, characterized in that, A damper (801) is screwed onto the upper surface of the damping plate (8), and a contact plate (803) is welded onto the upper surface of the damper (801). The contact plate (803) has an arc-shaped plate structure and is in contact with one end of the lower surface of the DC motor (3).

7. A speed reducer for agricultural machinery according to claim 6, characterized in that, A damping spring (802) is installed between the lower surface of the contact plate (803) and the upper surface of the damping plate (8), and the damping spring (802) is wound around the damper (801).

8. A speed reducer for agricultural machinery according to claim 5, characterized in that, The upper surface of the output bearing cover (6) is provided with an oil injection hole, and an oil injection plug (9) is installed inside the oil injection hole. An oil sealing cap (10) is screwed onto one surface of the oil injection plug (9). A bearing is installed inside the oil sealing cap (10), and an output shaft (11) is rotatably installed inside the bearing.

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