Small-sized rotary blade abrasion test device

Abstract

The utility model discloses a small-sized rotary blade wear test device, which comprises a bottom plate, a gear motor fixed at the top of the bottom plate, a plurality of mounting seats fixed at the top of the bottom plate, swing arms rotationally arranged on the mounting seats, a plurality of swing arms fixed through connecting rods, and polishing pieces mounted on the swing arms, an output shaft of the gear motor is connected with the swing arm through a swing mechanism; the polishing part comprises a first screw, a hole is formed in the top of the outer wall of the swing arm, a first threaded sleeve head is fixed to the hole, and the first screw is in threaded connection in the first threaded sleeve head. According to the rotary blade wear-resisting device, reciprocating friction is conducted on the rotary blade tightly attached to the grinding disc so that a wear-resisting experiment can be conducted, meanwhile, the arranged first screw can be adjusted and better attached to the outer wall of the rotary blade, the arranged sleeve rod and the arranged threaded rod can be connected through the first nut and the second nut so that the threaded rod can be adjusted in the sleeve rod and locked, and the rotary blade wear-resisting device is convenient to use and high in practicability. The distance between the sleeve rod and the threaded rod is adjusted so that the swing amplitude can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of wear test of rotary tillage parts, in particular to a small-sized rotary tillage blade wear test device. Background Art

[0002] As the main machine in farmland cultivation, the rotary tiller, its main component, has always been the main research object of rotary tiller. As the rotary tiller works under special conditions, it often works in wet and corrosive media, and wear is the main form of its failure and damage.

[0003] The current method of testing the wear of rotary tillers is generally to perform durability tests through reciprocating friction of the grinding disc. However, this method has great limitations. After the rotary tiller is installed and fixed, after a period of wear, there is gradually a gap between the rotary tiller and the grinding disc, and the rotary tiller needs to be disassembled and assembled again to fit the grinding disc, which is rather troublesome. In this regard, we designed a small rotary tiller wear test device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a small rotary tiller blade wear test device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A small rotary tiller blade wear test device comprises a bottom plate, a reduction motor is fixed on the top of the bottom plate, a plurality of mounting seats are fixed on the top of the bottom plate, a swing arm is rotatably arranged on the mounting seat, a plurality of the swing arms are fixed by connecting rods, a grinding piece is installed on the swing arm, and the output shaft of the reduction motor is connected to the swing arm through a swing mechanism;

[0007] The grinding piece includes a first screw rod, a hole is opened on the top of the outer wall of the swing arm, and a first threaded sleeve is fixed on the hole. The first screw rod is threadedly connected in the first threaded sleeve, and a grinding disc is fixed on the end face of the first screw rod.

[0008] As a further solution of the utility model, the swing mechanism includes an eccentric wheel fixed to the output shaft of the reduction motor, the outer wall of the eccentric wheel is rotatably connected to a first fixed head at a position away from the output shaft, the outer wall of the first fixed head is fixed with a sleeve rod, a threaded rod is inserted in the sleeve rod, a second fixed head is fixed to the end of the threaded rod away from the sleeve rod, and the second fixed head is fixed to the outer wall of the swing arm.

[0009] As a further solution of the utility model, the outer wall of the threaded rod is threadedly connected with a first nut, the outer wall of the sleeve rod is provided with an external thread near the threaded rod, and a second nut adapted thereto is provided on the external thread, the first nut is fixed to the second nut, and the sleeve rod and the threaded rod can be connected through the first nut and the second nut to achieve adjustment and locking of the threaded rod in the sleeve rod, and to adjust the distance between the sleeve rod and the threaded rod to achieve adjustment of the swing amplitude.

[0010] As a further solution of the utility model, two mounting plates are installed at positions of the outer wall of the base plate close to the grinding piece, and the mounting plates are installed with clamping pieces.

[0011] As a further solution of the present invention, the clamping member includes a second screw, a hole is opened at the top of the outer wall of the mounting plate, and a second threaded sleeve is fixed in the hole, the second screw is threadedly connected in the second threaded sleeve, and a limit head adapted to the side mounting port of the rotary blade is fixed on the side of the two second screws close to each other, and a turntable is fixed on the end of the two second screws away from each other. Through the setting of the mounting plate and the clamping member, the setting of the clamping member includes the second screw, the turntable and the limit head, etc., and the second screw can be moved by rotating the turntable, and the two limit heads are close to each other, so as to limit and fix the mounting hole positions on both sides of the rotary blade, thereby realizing the fixation of the rotary blade.

[0012] The beneficial effects of the utility model are:

[0013] The utility model: through the arrangement of a base plate, a reduction motor, a grinding piece, a mounting seat, a swing arm, an eccentric wheel, a first fixed head, a sleeve rod, a threaded rod, a second fixed head, a first nut and a second nut, etc., the grinding piece includes a first threaded sleeve head, a first screw and a grinding disc. When working, the reduction motor drives the eccentric wheel to rotate, and the rotating eccentric wheel drives the sleeve rod and the threaded rod to pull the swing arm to achieve reciprocating swing, thereby achieving the reciprocating swing of the first threaded sleeve head, the first screw and the grinding disc installed on the swing arm, and reciprocating friction is performed on the rotary tiller close to the grinding disc to carry out a wear resistance test. At the same time, the arranged first screw rod can be adjusted to better fit the outer wall of the rotary tiller. The arranged sleeve rod and the threaded rod can be connected through the first nut and the second nut to achieve the adjustment of the threaded rod in the sleeve rod for locking, and the distance between the sleeve rod and the threaded rod is adjusted to achieve the adjustment of the swing amplitude.

[0014] The utility model: by setting up a mounting plate and a clamping member, the clamping member includes a second screw, a turntable and a limit head, etc., the second screw can be moved by rotating the turntable, and the two limit heads are close to each other, and the mounting hole positions on both sides of the rotary blade are limited and fixed, thereby realizing the fixation of the rotary blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a small rotary tiller blade wear test device proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the first partial unfolded three-dimensional structure of a small rotary tiller blade wear test device proposed by the utility model;

[0017] Figure 3 It is a schematic diagram of the second partial unfolded three-dimensional structure of a small rotary tiller blade wear test device proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of a third partial expanded three-dimensional structure of a small rotary tiller blade wear testing device proposed by the utility model.

[0019] In the figure: 1. base plate; 2. reduction motor; 3. swing mechanism; 4. grinding piece; 5. mounting seat; 6. swing arm; 7. eccentric wheel; 8. first fixed head; 9. sleeve rod; 10. threaded rod; 11. second fixed head; 12. first nut; 13. second nut; 14. clamping piece; 15. first threaded sleeve; 16. first screw; 17. grinding disc; 18. mounting plate; 19. second threaded sleeve; 20. second screw; 21. turntable; 22. limit head. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] Reference Figure 1-Figure 4 A small rotary tiller blade wear test device comprises a bottom plate 1, a reduction motor 2 is fixed on the top of the bottom plate 1, a plurality of mounting seats 5 are fixed on the top of the bottom plate 1, a swing arm 6 is rotatably arranged on the mounting seat 5, the plurality of swing arms 6 are fixed by connecting rods, a grinding piece 4 is installed on the swing arm 6, and the output shaft of the reduction motor 2 is connected to the swing arm 6 through a swing mechanism 3;

[0023] The grinding member 4 includes a first screw rod 16 . A hole is formed on the top of the outer wall of the swing arm 6 , and a first threaded sleeve 15 is fixed on the hole. The first screw rod 16 is threadedly connected in the first threaded sleeve 15 , and a grinding disc 17 is fixed on the end face of the first screw rod 16 .

[0024] In this embodiment, the swing mechanism 3 includes an eccentric wheel 7 fixed to the output shaft of the reduction motor 2. The outer wall of the eccentric wheel 7 is rotatably connected to a first fixed head 8 away from the output shaft. A sleeve rod 9 is fixed to the outer wall of the first fixed head 8. A threaded rod 10 is inserted into the sleeve rod 9. A second fixed head 11 is fixed to the end of the threaded rod 10 away from the sleeve rod 9. The second fixed head 11 is fixed to the outer wall of the swing arm 6.

[0025] In this embodiment, the outer wall of the threaded rod 10 is threadedly connected with a first nut 12, and the outer wall of the sleeve rod 9 is provided with an external thread near the threaded rod 10, and a second nut 13 adapted thereto is provided on the external thread. The first nut 12 is fixed to the second nut 13, and the sleeve rod 9 and the threaded rod 10 can be connected through the first nut 12 and the second nut 13 to achieve adjustment and locking of the threaded rod 10 in the sleeve rod 9, and to adjust the distance between the sleeve rod 9 and the threaded rod 10 to achieve adjustment of the swing amplitude.

[0026] In this embodiment, two mounting plates 18 are installed at positions of the outer wall of the base plate 1 close to the grinding member 4 , and the clamping members 14 are installed on the mounting plates 18 .

[0027] In this embodiment, the clamping member 14 includes a second screw rod 20, a hole is opened at the top of the outer wall of the mounting plate 18, and a second threaded sleeve 19 is fixed in the hole, the second screw rod 20 is threadedly connected in the second threaded sleeve 19, and a limit head 22 adapted to the side mounting port of the rotary blade is fixed on the side of the two second screw rods 20 that are close to each other, and a turntable 21 is fixed on the end of the two second screw rods 20 that are away from each other. Through the set mounting plate 18 and the clamping member 14, the set clamping member 14 includes the second screw rod 20, the turntable 21 and the limit head 22, etc., and the second screw rod 20 can be moved by rotating the turntable 21, and the two limit heads 22 are close to each other, and the mounting hole positions on both sides of the rotary blade are limited and fixed, thereby realizing the fixation of the rotary blade.

[0028] Working principle: When in use, through the arranged bottom plate 1, reduction motor 2, grinding piece 4, mounting seat 5, swing arm 6, eccentric wheel 7, first fixed head 8, sleeve rod 9, threaded rod 10, second fixed head 11, first nut 12 and second nut 13, etc., wherein the arranged grinding piece 4 comprises a first threaded sleeve head 15, a first screw rod 16 and a grinding disc 17, when working, the reduction motor 2 drives the eccentric wheel 7 to rotate, and the rotating eccentric wheel 7 drives the sleeve rod 9 and the threaded rod 10 to pull the swing arm 6 to realize reciprocating swing, thereby realizing the reciprocating swing of the first threaded sleeve head 15, the first screw rod 16 and the grinding disc 17 installed on the swing arm 6, and reciprocatingly rubbing the rotary tiller close to the grinding disc 17 to realize wear-resistant practical operation. The first screw rod 16 is capable of adjustment and better fits the outer wall of the rotary tiller. The sleeve rod 9 and the threaded rod 10 are connected through the first nut 12 and the second nut 13 to adjust the threaded rod 10 in the sleeve rod 9 and lock it. The distance between the sleeve rod 9 and the threaded rod 10 is adjusted to adjust the swing amplitude. Furthermore, the mounting plate 18 and the clamping member 14 are provided. The clamping member 14 includes a second screw rod 20, a turntable 21 and a limit head 22, etc. The turntable 21 can be rotated to move the second screw rod 20, and the two limit heads 22 are close to each other, so that the mounting hole positions on both sides of the rotary tiller are limited and fixed, thereby fixing the rotary tiller.

[0029] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A small rotary tiller blade wear test device, comprising a base plate (1), characterized in that: A reduction motor (2) is fixed on the top of the base plate (1), a plurality of mounting seats (5) are fixed on the top of the base plate (1), a swing arm (6) is rotatably arranged on the mounting seat (5), the plurality of swing arms (6) are fixed by connecting rods, a grinding piece (4) is installed on the swing arm (6), and the output shaft of the reduction motor (2) is connected to the swing arm (6) via a swing mechanism (3); The grinding member (4) comprises a first screw rod (16); a hole is formed at the top of the outer wall of the swing arm (6); a first threaded sleeve (15) is fixed on the hole; the first screw rod (16) is threadedly connected in the first threaded sleeve (15); and a grinding disc (17) is fixed on the end surface of the first screw rod (16).

2. A small rotary tiller blade wear test device according to claim 1, characterized in that: The swing mechanism (3) comprises an eccentric wheel (7) fixed to the output shaft of the reduction motor (2); the outer wall of the eccentric wheel (7) is rotatably connected to a first fixed head (8) at a position away from the output shaft; a sleeve rod (9) is fixed to the outer wall of the first fixed head (8); a threaded rod (10) is inserted into the sleeve rod (9); a second fixed head (11) is fixed to the end of the threaded rod (10) away from the sleeve rod (9); and the second fixed head (11) is fixed to the outer wall of the swing arm (6).

3. A small rotary tiller blade wear test device according to claim 2, characterized in that: The outer wall of the threaded rod (10) is threadedly connected with a first nut (12); the outer wall of the sleeve rod (9) is provided with an external thread near the threaded rod (10); a second nut (13) adapted thereto is provided on the external thread; the first nut (12) is fixed to the second nut (13).

4. A small rotary tiller blade wear test device according to claim 3, characterized in that: Two mounting plates (18) are installed on the outer wall of the base plate (1) at a position close to the grinding piece (4), and a clamping piece (14) is installed on the mounting plates (18).

5. A small rotary tiller blade wear test device according to claim 4, characterized in that: The clamping member (14) comprises a second screw rod (20); a hole is formed at the top of the outer wall of the mounting plate (18), and a second threaded sleeve (19) is fixed in the hole; the second screw rod (20) is threadedly connected in the second threaded sleeve (19); and a limit head (22) adapted to the side mounting opening of the rotary blade is fixed on the mutually adjacent sides of the two second screw rods (20).

6. A small rotary tiller blade wear test device according to claim 5, characterized in that: A rotating disk (21) is fixed to the ends of the two second screw rods (20) that are away from each other.

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