Drawing type threshing sieve structure for watermelon and gourd machine

Abstract

The utility model relates to the technical field of cucurbit machines, in particular to a drawing type threshing sieve structure for a seeding-watermelon cucurbit machine. Comprising a rack, a threshing box is installed on the rack, a threshing sieve is arranged in the threshing box, groove-shaped guide rails are arranged on the two sides of the rack on the top of the threshing box respectively, the opening sides of the two groove-shaped guide rails are oppositely arranged, and a guide bearing set composed of a plurality of transverse bearings and longitudinal bearings is installed in the groove-shaped guide rails; groove-shaped hanging pieces are arranged on the two sides of the top of the threshing sieve respectively, the opening sides of the groove-shaped hanging pieces are arranged downwards, the groove-shaped hanging pieces are movably inserted into the groove-shaped guide rails, the inner walls of the groove-shaped hanging pieces make rolling contact with the transverse bearings and the longitudinal bearings, and fastening screws are arranged on the groove-shaped guide rails to press and fix the groove-shaped hanging pieces. The groove-shaped hanging pieces and the guide bearing sets are installed in a matched mode, a drawing type installation structure can be formed between the threshing sieve and the machine frame, the whole threshing sieve can be detached and replaced by loosening fastening screws, and the operation difficulty is reduced.

Description

Technical field:

[0001] The utility model relates to the technical field of gourd machines, in particular to a pull-out threshing screen structure for a melon-beating gourd machine. Background technology:

[0002] The gourd machine is mainly used for the grain harvesting operation of melons such as gourds, gourds, and seed melons. When working, a threshing screen structure is needed to separate the grains from the melon rind. For example, the patent application with publication number CN216873991U discloses a double-screen seeding device, which screens and separates the grains through a threshing screen. However, the current threshing screens are fixedly installed on the frame. Since the grain sizes of different melon species are different, threshing screens with different sieve holes often need to be replaced. Now the entire threshing screen can only be completely disassembled for replacement, which is difficult and time-consuming and laborious for workers to operate. Moreover, the current threshing screens are generally processed by opening several sieve holes on the overall plate. If local damage occurs, it is difficult to repair, resulting in the entire threshing screen being unable to continue to be used, increasing the maintenance and use costs.

[0003] In summary, the replacement and maintenance of the threshing screen structure in the gourd machine has become a technical problem that needs to be solved urgently in the industry. Utility model content:

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a pull-out threshing screen structure for a melon gourd beating machine, which solves the problem that the previous threshing screen is fixedly installed on a frame and is difficult to disassemble and replace.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A pull-out threshing screen structure for a melon gourd threshing machine comprises a frame, a threshing box is installed on the frame, a threshing screen is arranged in the threshing box, grooved guide rails are respectively arranged on both sides of the frame at the top of the threshing box, the opening sides of the two grooved guide rails are arranged facing each other, and a guide bearing group composed of a plurality of transverse bearings and longitudinal bearings is installed in the grooved guide rails; grooved hangers are respectively arranged on both sides of the top of the threshing screen, the opening sides of the grooved hangers are arranged downward, the grooved hangers are movably inserted in the grooved guide rails, the inner walls of the grooved hangers are in rolling contact with the transverse bearings and the longitudinal bearings, and fastening screws are provided on the grooved guide rails to press and fix the grooved hangers.

[0007] The transverse bearings and the longitudinal bearings are arranged in pairs, and the transverse bearings and the longitudinal bearings are respectively installed at the bottom of the grooved guide rail through supporting members.

[0008] The transverse bearing is in rolling contact with both sides of the inner wall of the groove-shaped hanger, and the longitudinal bearing is in rolling contact with the top of the inner wall of the groove-shaped hanger.

[0009] The threshing screen comprises a plurality of arc-shaped screen bars, screen holes are formed between adjacent arc-shaped screen bars, and the side of the groove-shaped hanging piece is provided with an arc-shaped clamping groove matched with the end of the arc-shaped screen bar.

[0010] A support rod is provided at the bottom of the arc-shaped screen bar, and an arc-shaped clamping groove matched with the arc-shaped screen bar is provided on the support rod.

[0011] A threshing shaft is installed on the upper side of the threshing screen, and a plurality of shifting rods are installed on the threshing shaft.

[0012] A grain conveying auger is installed on the lower side of the threshing screen.

[0013] The utility model adopts the above scheme and has the following advantages:

[0014] By installing grooved guide rails on both sides of a frame at the top of a threshing box, a guide bearing group consisting of a plurality of transverse bearings and a longitudinal bearing is installed in the grooved guide rails, and by respectively arranging grooved hangers on both sides of the top of the threshing screen, the grooved hangers and the guide bearing group are installed in coordination, so that a pull-out installation structure can be formed between the threshing screen and the frame, and the entire threshing screen can be disassembled and replaced by loosening the fastening screws, thereby reducing the difficulty of operation; in addition, the threshing screen is formed by clamping a plurality of arc-shaped screen bars with the grooved hangers and the support rods, and the screen bars can be damaged individually when local damage occurs, thereby reducing the cost of maintenance and use. Description of the drawings:

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A in FIG.

[0017] Figure 3 It is a structural schematic diagram of the threshing screen of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the utility model threshing screen in a pulled-out state.

[0019] In the figure, 1, frame, 2, threshing box, 3, threshing screen, 4, grooved guide rail, 5, transverse bearing, 6, longitudinal bearing, 7, grooved hanger, 8, fastening screw, 9, support, 10, arc-shaped screen bar, 11, arc-shaped slot, 12, support rod, 13, threshing shaft, 14, lever, 15, grain conveying auger. Specific implementation method:

[0020] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0021] like Figure 1-4As shown, a pull-out threshing screen structure for a melon gourd threshing machine includes a frame 1, a threshing box 2 is installed on the frame 1, a threshing screen 3 is arranged in the threshing box 2, grooved guide rails 4 are respectively arranged on both sides of the frame 1 at the top of the threshing box 2, the opening sides of the two grooved guide rails 4 are arranged facing each other, and a guide bearing group composed of a plurality of transverse bearings 5 ​​and a longitudinal bearing 6 is installed in the grooved guide rail 4; grooved hangers 7 are respectively arranged on both sides of the top of the threshing screen 3, the opening sides of the grooved hangers 7 are arranged downward, the grooved hangers 7 are movably inserted in the grooved guide rails 4, the inner wall of the grooved hangers 7 is in rolling contact with the transverse bearings 5 ​​and the longitudinal bearings 6, and the grooved guide rails 4 are provided with fastening screws 8 to press and fix the grooved hangers 7.

[0022] The transverse bearings 5 ​​and the longitudinal bearings 6 are arranged in pairs, and the transverse bearings 5 ​​and the longitudinal bearings 6 are respectively installed at the bottom of the grooved guide rail 4 through support members 9 .

[0023] The transverse bearing 5 is in rolling contact with both sides of the inner wall of the trough-shaped hanger 7, which can prevent the trough-shaped hanger 7 from shaking left and right, thereby preventing the threshing screen 3 from shaking left and right after installation. The longitudinal bearing 6 is in rolling contact with the top of the inner wall of the trough-shaped hanger 7 to support the trough-shaped hanger 7.

[0024] The threshing screen 3 comprises a plurality of arc-shaped screen bars 10 , and screen holes are formed between adjacent arc-shaped screen bars 10 . The side of the groove-shaped hanging part 7 is provided with an arc-shaped slot 11 matched with the end of the arc-shaped screen bar 10 .

[0025] A support rod 12 is provided at the bottom of the arc-shaped screen bar 10 , and an arc-shaped slot matching with the arc-shaped screen bar 10 is provided on the support rod 12 , so that the support rod 12 plays a supporting and reinforcing role.

[0026] A threshing shaft 13 is installed on the upper side of the threshing screen 3, and a plurality of levers 14 are installed on the threshing shaft 13. The threshing shaft 13 drives the levers 14 to rotate to stir the melon rind and the grains, so that the grains fall downward from the sieve holes of the threshing screen 3 into the threshing box 2, and other materials remain on the upper side of the threshing screen 3 and are transported backward.

[0027] A grain conveying auger 15 is installed at the lower side of the threshing screen 3, and the grain conveying auger 15 can convey the grains falling into the threshing box 2 to the outside.

[0028] Working principle:

[0029] The grooved hangers 7 on both sides of the top of the threshing screen 3 can be installed in cooperation with the guide bearing group in the grooved guide rail 4. Specifically, the threshing screen 3 is inserted from one end of the grooved guide rail 4, and the transverse bearings 5 ​​roll in contact with both sides of the inner wall of the grooved hanger 7, and the longitudinal bearings 6 roll in contact with the top of the inner wall of the grooved hanger 7, so that a pull-out installation structure is formed between the threshing screen 3 and the grooved guide rail 4. When the threshing screen 3 with different sieve holes needs to be replaced, the entire threshing screen 3 can be disassembled and replaced by loosening the fastening screws 8, which reduces the difficulty of operation; in addition, the threshing screen 3 is composed of a plurality of arc-shaped screen bars 10 fixed with the grooved hangers 7 and the support rods 12. When local damage occurs, the screen bars can be damaged separately, which reduces the maintenance and use costs. The grains separated by the threshing screen 3 fall downward into the threshing box 2, and the grains falling into the threshing box 2 can be transported outward under the action of the grain conveying auger 15.

[0030] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.

[0031] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A pull-out threshing screen structure for a melon gourd threshing machine, comprising a frame, a threshing box is mounted on the frame, and a threshing screen is arranged in the threshing box, characterized in that: Groove-shaped guide rails are respectively arranged on both sides of the frame at the top of the threshing box, the opening sides of the two groove-shaped guide rails are arranged facing each other, and a guide bearing group consisting of a plurality of transverse bearings and longitudinal bearings is installed in the groove-shaped guide rails; groove-shaped hangers are respectively arranged on both sides of the top of the threshing screen, the opening sides of the groove-shaped hangers are arranged downward, the groove-shaped hangers are movably inserted in the groove-shaped guide rails, the inner walls of the groove-shaped hangers are in rolling contact with the transverse bearings and the longitudinal bearings, and fastening screws are provided on the groove-shaped guide rails to press and fix the groove-shaped hangers.

2. The pull-out threshing screen structure for a melon-beating gourd machine according to claim 1, characterized in that: The transverse bearings and the longitudinal bearings are arranged in pairs, and the transverse bearings and the longitudinal bearings are respectively installed at the bottom of the grooved guide rail through supporting members.

3. The pull-out threshing screen structure for a melon-beating gourd machine according to claim 1, characterized in that: The transverse bearing is in rolling contact with both sides of the inner wall of the groove-shaped hanger, and the longitudinal bearing is in rolling contact with the top of the inner wall of the groove-shaped hanger.

4. The pull-out threshing screen structure for a melon-beating gourd machine according to claim 1, characterized in that: The threshing screen comprises a plurality of arc-shaped screen bars, screen holes are formed between adjacent arc-shaped screen bars, and the side of the groove-shaped hanging piece is provided with an arc-shaped clamping groove matched with the end of the arc-shaped screen bar.

5. The pull-out threshing screen structure for a melon-beating gourd machine according to claim 4, characterized in that: A support rod is provided at the bottom of the arc-shaped screen bar, and an arc-shaped clamping groove matched with the arc-shaped screen bar is provided on the support rod.

6. The pull-out threshing screen structure for a melon-beating gourd machine according to claim 1, characterized in that: A threshing shaft is installed on the upper side of the threshing screen, and a plurality of shifting rods are installed on the threshing shaft.

7. The pull-out threshing screen structure for a melon-beating gourd machine according to claim 1, characterized in that: A grain conveying auger is installed on the lower side of the threshing screen.

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