Small corn threshing device
By using a combination design of bracket, threshing barrel, corn cob fixing and elastic parts in a small corn threshing device, the problem of not being able to adaptively adjust the feed amount in the prior art is solved, and the smooth operation and service life of the equipment are improved .
Patent Information
- Application Number
- CN202421103878.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-20
AI Technical Summary
During the threshing process, the existing small corn threshing machine cannot adjust the feed amount according to the difficulty of the corn cob, which can easily cause the threshing barrel to be stuck, poor operational smoothness, and there are certain defects in both electrical and human-driven devices. .
A small corn threshing device including a bracket, a threshing cylinder, a corn cob fixing member and an elastic member is designed. The movement of the corn cob fixing member is controlled through the elastic member, and the feed amount is adjusted adaptively according to the difficulty of threshing of the corn cob to reduce the The load fluctuates in the threshing cylinder to improve operational smoothness.
The feed amount is adaptively adjusted according to the threshing difficulty of each corn cob, reducing the load fluctuation of the threshing cylinder, improving the operating comfort and the service life of the equipment.
Smart Images
Figure CN222263686U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of corn threshing equipment, in particular to a small corn threshing device. Background Art
[0002] Corn threshing is one of the important work processes in the corn processing process. At present, corn threshing is mainly completed by corn threshers. Commonly used corn threshers include large threshers that use threshing rollers and threshing baffles set on the side of the threshing rollers for threshing, such as: a corn thresher disclosed in Chinese patent application number 200910263459.X; and small corn threshers that use a threshing cylinder with threshing teeth at one end for rotating threshing, such as: a hand-cranked corn thresher disclosed in Chinese patent application number 202221961300.2. Small corn threshers can generally only thresh a single corn, that is, only one corn can be threshed at a time, and the production efficiency is relatively low, but the equipment cost is low, the structure is simple, and it is more suitable for farmers.
[0003] The Chinese patent application number 201621141186.3 discloses a hand-cranked adaptive corn threshing device, including a support plate assembly, a screw drive assembly supported and installed on the support plate assembly, a hand wheel installed at one end of the screw drive assembly, a connecting plate installed on the screw drive assembly through screw drive cooperation, the connecting plate and the guide rod assembly and the support guide assembly installed between the two support plate assemblies form a sliding cooperation, a fixing fork is installed on the inner side of the connecting plate, a threshing barrel assembly is installed on the inner side of the support plate assembly opposite to the fixing fork, and a gear transmission assembly is installed on the back of the threshing barrel assembly. The corn threshing device is provided with a connecting plate and a fixing fork, etc., and the corn cob can be fixed by the fixing fork on the connecting plate during the threshing process. Compared with the traditional small corn thresher, it has the advantage of only one-hand operation. However, the fixed fork of the corn threshing device is installed on the screw rod through a connecting plate and driven by the screw rod, and the threshing barrel assembly is also synchronously driven by the screw rod through the gear assembly. Therefore, the corn threshing device cannot adaptively adjust the feeding amount of the corn cobs according to the difficulty of threshing the corn kernels of each corn cob. Therefore, when corn threshing is difficult, the threshing barrel of the corn threshing device is prone to get stuck during the threshing operation, and the operation smoothness of the thresher is poor. For a small corn thresher driven by electricity, the motor is easy to burn out, and for a small corn thresher driven by manpower, the operation comfort is poor. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a small corn threshing device which can adaptively adjust the feeding amount of corn cobs according to the difficulty of corn threshing.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a small corn threshing device, comprising a bracket, a threshing barrel and a corn cob fixing part for fixing corn cobs, the threshing barrel can be rotatably installed on the bracket, one end of the threshing barrel is provided with threshing teeth, the corn cob fixing part is arranged opposite to the threshing tooth setting end of the threshing barrel, and also includes an elastic part for feeding, one end of the elastic part is connected to the corn cob fixing part, and the other end is connected to the bracket, so that the corn cob fixing part moves toward the threshing tooth setting end of the threshing barrel for feeding.
[0006] Furthermore, the bracket is provided with a slide rail for guiding the corn cob fixing piece to move toward and away from the threshing tooth setting end of the threshing cylinder, and the corn cob fixing piece is slidably set on the slide rail so that it can move along the slide rail toward and away from the threshing tooth setting end of the threshing cylinder.
[0007] Furthermore, it also includes a swing arm, one end of which is hinged to the bracket through a hinge shaft, and the other end of which is connected to the corn cob fixing part, so as to push the corn cob fixing part to slide along the slide rail toward the threshing tooth setting end close to the threshing cylinder;
[0008] One end of the elastic member is connected to the corn cob fixing member through the swing arm, and the distance from the connection point between the elastic member and the swing arm to the hinge axis is smaller than the distance from the connection point between the swing arm and the corn cob fixing member to the hinge axis.
[0009] Furthermore, the swing arm is provided with a slide groove extending along the length direction of the swing arm, and a connecting piece that slidably cooperates with the slide groove is provided in the slide groove, and the swing arm is connected to the corn cob fixing piece through the connecting piece.
[0010] Furthermore, the corn cob fixing part comprises a corn fixing cylinder with a cylindrical structure, the corn fixing cylinder is coaxially arranged with the threshing cylinder, and a serrated structure for fixing the corn cob is provided at one end of the corn fixing cylinder opposite to the threshing tooth setting end of the threshing cylinder.
[0011] Furthermore, the threshing drum is provided with a handle for rotating the threshing drum.
[0012] Furthermore, a clamping mechanism is provided on the bracket.
[0013] Furthermore, the elastic member is a spring.
[0014] The beneficial effects of the utility model are as follows: the small corn threshing device of the utility model adopts an elastic member connected to the corn cob fixing member at one end and connected to the bracket at the other end to control the corn cob fixing member to move toward the threshing tooth setting end close to the threshing barrel to feed, and the feeding force is provided by the elastic member. In this way, the feeding amount of the corn cob fixing member can be adaptively adjusted according to the difficulty of threshing each corn cob. The load fluctuation of the threshing barrel during operation will be relatively small, and the problem of jamming will not easily occur. The operation smoothness of the device is better. For a small corn threshing device driven by electricity, the motor life can be increased, and for a small corn threshing device driven by manpower, the operating comfort can be increased. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figures 1 to 3 It is a structural schematic diagram of the utility model;
[0016] Figure 4 It is another structural schematic diagram of the utility model;
[0017] Figure 5 It is a schematic diagram of the structure of the threshing cylinder;
[0018] Figure 6 is a schematic diagram of the structure of a corn cob fixing member;
[0019] As shown in the figure: bracket 1, threshing cylinder 2, corn cob fixing part 3, elastic part 4, slide rail 5, swing arm 6, connecting part 7, clamping mechanism 8, corn cob 9, cover 10, hinge shaft 11, threshing teeth 21, handle 22, corn fixing cylinder 31, and slide 61. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0021] like Figures 1 to 5 As shown, the small corn threshing device of the utility model comprises a bracket 1, a threshing cylinder 2 and a corn cob fixing member 3 for fixing corn cobs, the threshing cylinder 2 can be rotatably mounted on the bracket 1, one end of the threshing cylinder 2 is provided with a threshing tooth 21, the corn cob fixing member 3 is arranged opposite to the threshing tooth setting end of the threshing cylinder 2, and also comprises an elastic member 4 for feeding, one end of the elastic member 4 is connected to the corn cob fixing member 3, and the other end is connected to the bracket 1, so that the corn cob fixing member 3 moves toward the threshing tooth setting end of the threshing cylinder 2 for feeding. The elastic member 4 can be made of rubber, spring, etc. In the embodiment of the utility model, the elastic member 4 is a spring.
[0022] The threshing drum 2 can be rotatably mounted on the bracket 1 by cooperating with a bearing mounted on the bracket 1. The threshing drum 2 can be driven by a driving device such as a motor, or can be driven by manpower. In the present utility model, in order to facilitate the use of manpower to drive the threshing drum 2, a handle 22 for rotating the threshing drum 2 is provided on the threshing drum 2.
[0023] like Figure 5 As shown, the small corn threshing device of the utility model has the same working principle as the existing small corn thresher: when threshing, the corn cob 9 is fixed on the corn cob fixing part 3, and the corn cob fixing part 3 is moved toward the threshing tooth setting end close to the threshing cylinder 2 to realize feeding, and the threshing teeth 21 of the threshing cylinder 2 are inserted into the corn kernels of the corn cob by relying on the feeding force of the corn cob fixing part 3. The threshing cylinder 2 can be rotated to peel off the corn kernels on the corn cob by relying on the threshing teeth 21 thereon, and the corn cob enters the inner cavity of the threshing cylinder 2. As it is more difficult to thresh the corn kernels on the corn cob, it is more difficult for the threshing teeth 21 to be inserted into the corn kernels on the corn cob. The small corn threshing device of the utility model adopts an elastic member 4 which is connected to the corn cob fixing member 3 at one end and to the bracket 1 at the other end to control the corn cob fixing member 3 to move toward the threshing tooth setting end close to the threshing barrel 2 for feeding. The feeding force is provided by the elastic member 4. In this way, the feeding amount of the corn cob fixing member 3 can be adaptively adjusted according to the difficulty of threshing each corn cob. The load fluctuation of the threshing barrel 2 during operation will be relatively small, and it is not easy to get stuck, and the operation of the device is smoother. Specifically, when the corn kernels on the corn cob are difficult to thresh, the depth of the threshing teeth 21 inserted into the corn kernels on the corn cob 9 will be correspondingly shallow, the feed amount of the corn cob fixing piece 3 will also be reduced accordingly, and the adaptability of the threshing amount per rotation of the threshing drum 2 will be reduced. When the corn kernels on the corn cob are easy to thresh, the depth of the threshing teeth 21 inserted into the corn kernels on the corn cob 9 will be correspondingly deepened, the feed amount of the corn cob fixing piece 3 will also be increased accordingly, and the adaptability of the threshing amount per rotation of the threshing drum 2 will be increased. In this way, there will be no large load fluctuation during the operation of the threshing drum 2.
[0024] In order to better guide the corn cob fixing member 3 to move toward the threshing tooth setting end of the threshing cylinder 2, as shown in FIG. Figures 1 to 3 As shown, the bracket 1 is provided with a slide rail 5 for guiding the corn cob fixing part 3 to move toward and away from the threshing tooth setting end of the threshing cylinder 2, and the corn cob fixing part 3 is slidably set on the slide rail 5, so that it can move along the slide rail 5 toward and away from the threshing tooth setting end of the threshing cylinder 2.
[0025] The elastic member 4 may be specifically made of Figure 5The elastic member 4 is directly connected to the corn cob fixing member 3, and the setting direction of the elastic member 4 is along the extension direction of the slide rail 5. In this way, the deformation amount of the elastic member 4 is the same as the feeding amount of the corn cob fixing member 3. In one embodiment, as Figures 1 to 3 As shown, the device also includes a swing arm 6, one end of which is hinged to the bracket 1 through a hinge shaft 11, and the other end is connected to the corn cob fixing part 3, so as to push the corn cob fixing part 3 to slide along the slide rail 5 toward the threshing tooth setting end close to the threshing cylinder 2. One end of the elastic member 4 is connected to the swing arm 6, so as to be connected to the corn cob fixing part 3 through the swing arm 6, and the distance from the connection point of the elastic member 4 and the swing arm 6 to the hinge shaft 11 is smaller than the distance from the connection point of the swing arm 6 and the corn cob fixing part 3 to the hinge shaft 11. In the above structure, the elastic member 4 pulls the swing arm 6 to rotate around the hinge shaft 11, so that during the rotation of the swing arm 6, one end of the swing arm 6 pushes the corn cob fixing part 3 to slide along the slide rail 5 toward the threshing tooth setting end close to the threshing cylinder 2 to feed. In the above structure, since the distance from the connection point of the elastic member 4 and the swing arm 6 to the hinge shaft 11 is smaller than the distance from the connection point of the swing arm 6 and the corn cob fixing member 3 to the hinge shaft 11, the deformation amount of the elastic member 4 during the feeding process will be smaller than the feeding amount of the corn cob fixing member 3. Thus, as the corn cob fixing member 3 gradually approaches the threshing cylinder 2, the deformation amount of the elastic member 4 will also increase, but the total deformation amount is smaller than the feeding amount of the corn cob fixing member 3. Thus, the change amount of the feeding force of the corn cob fixing member 3 during the entire feeding process is smaller than that of the corn cob fixing member 3. Figure 5 The feed force changes less and the device operates more smoothly.
[0026] The swing arm 6 can be connected to the corn cob fixing member 3 in a butting manner, but this method is inconvenient for feeding. Figures 1 to 3 As shown, the swing arm 6 is provided with a slide groove 61 extending along the length direction of the swing arm 6, and a connecting piece 7 is provided in the slide groove 61 to slide with the swing arm 6, and the swing arm 6 is connected to the corn cob fixing piece 3 through the connecting piece 7. In this way, when feeding is required, the swing arm can be rotated to move the corn cob fixing piece 3 away from the threshing tooth setting end of the threshing cylinder 2 by relying on the swing arm, so as to form a spacing between the threshing cylinder 2 and the corn cob fixing piece 3 to facilitate the installation of the corn cob on the corn cob fixing piece 3. The connecting piece 7 can be connected to the corn cob fixing piece 3 by plugging, bolting, threading or welding.
[0027] The corn cob fixing member 3 can be a clamp, a cross-shaped top or a star-shaped top. Figure 6As shown, in the embodiment of the utility model, the corn cob fixing member 3 includes a corn fixing cylinder 31 of cylindrical structure, the corn fixing cylinder 31 is coaxially arranged with the threshing cylinder 2, and the end of the corn fixing cylinder 31 opposite to the threshing tooth setting end of the threshing cylinder 2 is provided with a sawtooth structure for fixing the corn cob. Figure 4 As shown, when fixing the corn, the tip of the corn cob is inserted into the inner cavity of the corn fixing cylinder 31, and then the sawtooth structure on the threshing cylinder 2 is inserted into the corn cob. The corn cob fixing member can position the corn cob by relying on the inner cavity of the corn fixing cylinder 31 and the conical tip of the corn cob, which can better ensure that the corn cob is coaxial with the threshing cylinder 2, thereby making it more convenient for the threshing of the threshing cylinder 2, and the structure is simple.
[0028] In order to facilitate the fixing of the threshing device, a clamping mechanism 8 is provided on the bracket 1. In this way, the threshing device can be fixed on a bench or an operating table through the clamping mechanism 8. The clamping mechanism 8 can adopt a spring clamping mechanism, a bolt-tightening clamping mechanism, etc.
[0029] In order to prevent the corn from splashing around during threshing, a cover 10 can be provided on the outside of the threshing cylinder 2.
Claims
1. A small corn threshing device, comprising a support (1), a threshing cylinder (2) and a corn cob fixing member (3) for fixing corn cobs, wherein the threshing cylinder (2) is rotatably mounted on the support (1), a threshing tooth (21) is provided at one end of the threshing cylinder (2), and the corn cob fixing member (3) is arranged opposite to the threshing tooth setting end of the threshing cylinder (2), characterized in that: It also comprises an elastic member (4) for feeding, one end of the elastic member (4) being connected to the corn cob fixing member (3), and the other end being connected to the bracket (1), so that the corn cob fixing member (3) can be moved toward the end of the threshing tooth arrangement close to the threshing cylinder (2) to feed.
2. The small corn threshing device according to claim 1, characterized in that: The bracket (1) is provided with a slide rail (5) for guiding the corn cob fixing part (3) to move toward and away from the threshing tooth setting end of the threshing cylinder (2); the corn cob fixing part (3) is slidably arranged on the slide rail (5) so as to be able to move along the slide rail (5) toward and away from the threshing tooth setting end of the threshing cylinder (2).
3. The small corn threshing device according to claim 2, characterized in that: It also includes a swing arm (6) having one end hinged to the bracket (1) via a hinge shaft (11) and the other end connected to the corn cob fixing member (3) so as to push the corn cob fixing member (3) to slide along the slide rail (5) toward the threshing tooth setting end close to the threshing cylinder (2); One end of the elastic member (4) is connected to the corn cob fixing member (3) through the swing arm (6), and the distance from the connection point between the elastic member (4) and the swing arm (6) to the hinge shaft (11) is smaller than the distance from the connection point between the swing arm (6) and the corn cob fixing member (3) to the hinge shaft (11).
4. The small corn threshing device according to claim 3, characterized in that: The swing arm (6) is provided with a slide groove (61) extending along the length direction of the swing arm (6), and a connecting piece (7) slidably matched therewith is provided in the slide groove (61), and the swing arm (6) is connected to the corn cob fixing piece (3) via the connecting piece (7).
5. The small corn threshing device according to claim 1, characterized in that: The corn cob fixing member (3) comprises a corn fixing cylinder (31) of cylindrical structure, wherein the corn fixing cylinder (31) is coaxially arranged with the threshing cylinder (2), and a sawtooth structure for fixing the corn cob is provided at the end of the corn fixing cylinder (31) opposite to the threshing tooth arrangement end of the threshing cylinder (2).
6. The small corn threshing device according to claim 1, characterized in that: The threshing drum (2) is provided with a handle (22) for rotating the threshing drum (2).
7. The small corn threshing device according to claim 1, characterized in that: The bracket (1) is provided with a clamping mechanism (8).
8. The small corn threshing device according to claim 1, characterized in that: The elastic member (4) is a spring.