Driving structure for driving sampling trolley to walk

Abstract

The utility model belongs to the field of sampling machines, and particularly provides a driving structure for driving a sampling trolley to walk, which comprises a mounting seat, a speed reducing motor, a gear and a rack, the mounting seat is arranged on one side of the sampling trolley, the speed reducing motor is arranged on the mounting seat, an output shaft of the speed reducing motor penetrates through the mounting seat to be connected with the gear, and the rack is connected with the gear. The gear is meshed with a rack, and the rack is arranged on the rotating arm in the length direction of the rotating arm. Original chain transmission is changed into gear transmission, due to the fact that the meshing tightness of the gear and the rack is better, the transmission precision is higher, the sampling trolley is driven to walk front and back more stably and smoothly, the baking varnish coatings are arranged outside the gear and the rack, the gear transmission can be prevented from rusting, and the service life of the sampling trolley is prolonged. And the gear transmission does not need to be lubricated, so that the sampling trolley cannot be blocked when moving back and forth, and the service life of the gear transmission is also prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of sampling machines, and particularly relates to a driving structure for driving a sampling trolley to move. Background Art

[0002] A sampling machine is a device used to sample products produced in industries such as grain depots for raw grain, feed, flour, etc. As Figure 1 shown, it includes a column 1, a rotating arm 2, a driving structure 3, a sampling trolley 4 and a sampling tube 5. The top of the column 1 is rotatably connected to the rotating arm 2. The rotating arm 2 is provided with a driving structure 3 and a sampling trolley 4. The driving structure 3 can drive the sampling trolley 4 to move back and forth along the length direction of the rotating arm 2. The sampling trolley 4 is provided with a sampling tube 5. The sampling tube 5 can move up and down relative to the sampling trolley 4 to insert into the carriage for sampling and detecting the product.

[0003] The existing driving structure 3 for driving the sampling trolley to move is as Figure 2 shown, including a reduction motor 31, a front sprocket 32, a chain 33 and a rear sprocket 34. The reduction motor 31 is arranged at the top of the rotating arm 2. The output shaft of the reduction motor 31 is connected to the front sprocket 32. The front sprocket 32 is engaged with the chain 33. One end of the chain 33 is connected to the sampling trolley 4 through a hook. The other end of the chain 33 passes through the top shell of the rotating arm 2 and is engaged with the rear sprocket 34 at the rear end of the rotating arm 2 and then connected to the sampling trolley 4. When the reduction motor 31 works, it drives the front sprocket 32 to rotate. The front sprocket 32 drives the rear sprocket 34 to rotate through the chain 33. Since both ends of the chain 33 are connected to the sampling trolley 4, the chain 33 can drive the sampling trolley 4 to move back and forth along the length of the rotating arm 2 during rotation. However, the existing driving structure 3 has the following problems:

[0004] 1. The long-term operation of the chain 33 will cause wear, resulting in the chain becoming loose, reducing the pulling force on the sampling trolley 4, and making the sampling trolley 4 unstable and wobbling when moving back and forth along the rotating arm 2.

[0005] 2. The front sprocket 32, the chain 33 and the rear sprocket 34 will rust over time, causing the chain 33 to get stuck when driving the sampling trolley 4 to move back and forth.

[0006] 3. When the chain and the sprocket are used in combination, the transmission accuracy is relatively low, and the height of the sampling machine is relatively high, so it is not possible to lubricate the chain drive frequently, thus reducing the service life of the chain drive. Summary of the Utility Model

[0007] The purpose of the present utility model is to solve the above problems, and to provide a driving structure for driving a sampling trolley to move. This driving structure changes the original chain drive to a gear drive. Since the meshing between the gear and the rack is tighter and the transmission accuracy is higher, when driving the sampling trolley to move back and forth, it is more stable and smooth. Moreover, in this application, a paint coating is provided outside the gear and the rack, which can prevent the gear drive from rusting and does not require lubrication of the gear drive. Therefore, the sampling trolley will not get stuck when moving back and forth, and the service life of the gear drive is also extended.

[0008] To achieve the above purpose, the present utility model provides a driving structure for driving a sampling trolley to move, including a mounting seat, a reduction motor, a gear and a rack. The mounting seat is arranged on one side of the sampling trolley. A reduction motor is provided on the mounting seat. The output shaft of the reduction motor passes through the mounting seat and is connected to the gear. The gear meshes with the rack, and the rack is arranged on the rotating arm along the length direction of the rotating arm.

[0009] As a further optimization, the mounting seat includes a connecting side wall, a mounting wall and supporting side walls on both sides. The bottom of the connecting side wall is vertically connected to the end of the mounting wall. The mounting seat is connected to one side of the sampling trolley by bolts through the connecting side wall. The top end of the mounting wall is connected to the housing of the reduction motor by bolts. The output shaft of the reduction motor passes through the mounting wall and is connected to the gear below the mounting wall. Supporting side walls are connected to the opposite sides of the connecting side wall and the mounting wall, and oblong mounting holes are provided on the supporting side walls.

[0010] As a further optimization, paint coatings are provided on both the gear and the rack.

[0011] Advantages and beneficial effects of the present utility model

[0012] 1. The present utility model changes the driving structure for driving the sampling trolley to move along the length direction of the rotating arm to a gear drive. Since the meshing between the gear and the rack is tighter and the transmission accuracy is higher, when driving the sampling trolley to move back and forth, it is more stable and smooth.

[0013] 2. In order to prevent the gear drive from rusting, the present utility model provides a paint coating on the outer surfaces of the gear and the rack. Therefore, lubrication of the gear drive is not required, and the sampling trolley will not get stuck when moving back and forth along the rotating arm. At the same time, the service life of the gear drive is extended. Description of the drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the attached drawings required in the description of the embodiments. Obviously, the attached drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on the provided attached drawings.

[0015] Figure 1 is the overall structural schematic diagram of the existing seed sampling machine.

[0016] Figure 2 is Figure 1 the enlarged schematic diagram of the driving structure in

[0017] Figure 3 the schematic diagram of the driving structure provided by the embodiment of the present utility model installed on the rotating arm.

[0018] Figure 4 is Figure 3 the enlarged view of the part of the driving structure in

[0019] Figure 5 is the structural schematic diagram of the mounting seat provided by the embodiment of the present utility model.

[0020] Existing reference signs: Column 1, rotating arm 2, driving structure 3, reduction motor 31, front sprocket 32, chain 33, rear sprocket 34, seed sampling cart 4 and seed sampling tube 5.

[0021] Reference signs of the present application: Mounting seat 1, connecting side wall 11, mounting wall 12, supporting side wall 13, mounting hole 131, reduction motor 2, gear 3, rack 4, seed sampling cart 5, rotating arm 6. Detailed implementation manners

[0022] Since there are problems described in the background art with chain drive, the applicant wondered whether the chain drive could be changed to gear drive. However, how to install the gear drive on the seed sampling machine and enable the seed sampling cart to move smoothly and smoothly back and forth along the length of the rotating arm has not been solved. To solve this problem, the present application has made many attempts and finally determined the technical solution of the present application, that is, changing the installation of the reduction motor from the original on the rotating arm to on the seed sampling cart, so that the reduction motor can move back and forth along the length of the rotating arm with the seed sampling cart. At the same time, in order to make the gear on the output shaft of the reduction motor correspond to the rotating arm, the reduction motor is changed from the original horizontal arrangement to a vertical arrangement, and the rack is arranged along the length direction of the rotating arm, rather than being arranged inside the housing of the rotating arm as in the prior art. This can make the gear and the rack better meshed and also solve the problem of the seed sampling cart not moving smoothly and smoothly along the length direction of the rotating arm.

[0023] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "inside", "outside", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figure 3 and Figure 4 As shown, a driving structure for driving a sampling trolley to move includes a mounting seat 1, a reduction motor 2, a gear 3 and a rack 4. The mounting seat 1 is arranged on one side of the sampling trolley 5 and can move forward and backward along the length of the rotating arm 6 with the sampling trolley 5. The structure of the mounting seat 1 is as shown in FIG. Figure 5 As shown, it includes a connecting side wall 11, a mounting wall 12 and supporting side walls 13 on both sides. The bottom of the connecting side wall 11 is vertically connected to the end of the mounting wall 12. The mounting seat 1 connects the connecting side wall 11 to one side of the sampling trolley 5 by bolts, and the top of the mounting wall 12 is connected to the housing of the reduction motor 2 by bolts, so that the reduction motor 2 will not be affected when it moves with the sampling trolley and can work normally to provide rotational power for the gear 3. The output shaft of the reduction motor 2 passes through the mounting wall 12 and is connected to the gear 3 below the mounting wall 12. In order to strengthen the connection strength between the connecting side wall 11 and the mounting arm 12, the present embodiment has supporting side walls 13 integrally connected on the opposite sides between the connecting side wall 11 and the mounting wall 12. In order to facilitate the hand force point when installing or disassembling the mounting seat 1, an oblong mounting hole 131 is provided on the supporting side wall 13. The gear 3 is meshed with the rack 4, and the rack 4 is fixedly connected to the rotating arm 6 along the length direction of the rotating arm 6.

[0025] As a further optimization, the gear 3 and the rack 4 are provided with a paint coating, so the gear transmission does not need to be lubricated, and the sampling trolley 5 will not get stuck when moving back and forth along the rotating arm 6, while extending the life of the gear transmission.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model, rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the embodiments of the utility model.

Claims

1. A driving structure for driving a sampling trolley, characterized in that: The invention comprises a mounting seat (1), a reduction motor (2), a gear (3) and a rack (4); the mounting seat (1) is arranged on one side of a sampling trolley (5); the reduction motor (2) is arranged on the mounting seat (1); the output shaft of the reduction motor (2) passes through the mounting seat (1) and is connected to the gear (3); the gear (3) is meshed with the rack (4); and the rack (4) is arranged on the rotating arm (6) along the length direction of the rotating arm (6).

2. The driving structure for driving the sampling trolley according to claim 1 is characterized in that: The mounting seat (1) comprises a connecting side wall (11), a mounting wall (12) and supporting side walls (13) on both sides. The bottom of the connecting side wall (11) is vertically connected to the end of the mounting wall (12). The mounting seat (1) connects the connecting side wall (11) to one side of the sampling trolley (5) by bolts. The top of the mounting wall (12) is connected to the housing of the reduction motor (2) by bolts. The output shaft of the reduction motor (2) passes through the mounting wall (12) and is connected to the gear (3) below the mounting wall (12). The connecting side wall (11) and the mounting wall (12) are connected to supporting side walls (13) on opposite sides. The supporting side walls (13) are provided with oblong mounting holes (131).

3. The driving structure for driving the sampling trolley according to claim 1 is characterized in that: The gear (3) and the rack (4) are both provided with a baking varnish coating.

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