Rotating mechanism of concrete stone chip loosening mechanical arm

Abstract

The utility model discloses a rotating mechanism of a concrete stone chip loosening mechanical arm, which comprises a main body assembly comprising a main cylinder and a lower transmission shaft arranged between the inner sides of the main cylinder, the fixing assembly comprises a mounting plate fixedly mounted at the top end of the cylinder and a mounting box fixed at the top end of the mounting plate; the rotating assembly comprises a mechanical arm penetrating through the top end of the mounting box, an upper transmission shaft fixed to the bottom end of the mechanical arm and a large gear fixed below the surface of the upper transmission shaft. The problems that due to the fact that existing stone chips are exposed in air for a long time and absorb moisture in the air easily, false cakes are formed, raw materials cannot smoothly enter a conveying belt through a hopper, according to a traditional method, an excavator is used for scattering the cakes regularly and then pushing the cakes to the hopper, and the scattering and pushing method wastes time and labor and cannot achieve a good effect are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a concrete stone chip loosening mechanical arm rotating mechanism. Background Art

[0002] Stone chips are one of the important components of concrete and cement-stabilized gravel, and are widely used in construction projects and road construction. Abandoned stone chips, as a by-product produced in the process of processing gravel in quarries, can be used in concrete to replace river sand. It is the most suitable substitute for natural materials; it can improve the adhesion and workability of concrete mixtures, increase the compressive strength of concrete, and improve the frost resistance and impermeability of concrete.

[0003] However, it still has the following disadvantages in actual use:

[0004] The existing stone chips are easily exposed to the air for a long time and absorb moisture in the air, thus forming pseudo-agglomerates, which is not conducive to the smooth entry of raw materials into the conveyor belt through the hopper. The traditional method is to use an excavator to regularly break up the agglomerates and then push them into the hopper. This breaking up and pushing method is time-consuming and laborious and cannot achieve good results. Utility Model Content

[0005] The utility model aims to provide a concrete stone chip loosening mechanical arm rotating mechanism, which solves the problem that the existing stone chips proposed in the above background technology are easy to absorb moisture in the air due to long-term exposure to the air, thereby forming false lumps, which is not conducive to the smooth entry of raw materials into the conveyor belt through the hopper. The traditional method is to use an excavator to regularly break up the lumps and then push them into the hopper. This breaking up and pushing method is time-consuming, labor-intensive and cannot achieve good results.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a concrete stone chip loosening mechanical arm rotating mechanism, comprising:

[0008] The main assembly includes a master cylinder, a lower transmission shaft mounted between the inner sides of the master cylinder;

[0009] The fixing assembly comprises a mounting plate fixedly mounted on the top of the cylinder and a mounting box fixed on the top of the mounting plate.

[0010] The rotating assembly comprises a mechanical arm penetrating the top of the installation box, an upper transmission shaft fixed at the bottom of the mechanical arm, and a large gear fixed below the surface of the upper transmission shaft.

[0011] Furthermore, a servo motor is fixedly connected to the bottom end of one side of the installation box, and a rotating shaft at the output end of the servo motor extends to the top of the installation box, and a long gear is fixedly connected to the surface of the rotating shaft.

[0012] Furthermore, the long gear is meshed with the large gear, and an oil-containing bearing is placed at the connection between the mechanical arm and the installation box.

[0013] Furthermore, the main body component also includes a base fixed between the bottom ends of the cylinders, two groups of columns fixed to the bottom surface of the base, a six-spline shaft fixed to the top end of the lower transmission shaft, and a sub-cylinder body placed inside the cylinder.

[0014] Furthermore, the bottom end of the upper transmission shaft is connected to the top end of the six-spline shaft, and the upper part of the six-spline shaft passes through the mounting box and is connected to the mechanical arm.

[0015] A card slot is provided in the center of the top of the connecting plate.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The utility model is provided with a mounting plate fixedly connected with the cylinder, and a gear mounting box is fixedly connected with the mounting plate, a large gear and a long gear are arranged in the box, the two are meshed, the large gear is fixed on the upper transmission shaft of the mechanical arm, and the mechanical arm is lifted or lowered under the push of the cylinder piston, and the long gear is connected with the servo motor, and the motor drives the long gear to rotate, so that the large gear moving up and down is meshed with the rotating long gear, so that the large gear can be lifted and lowered and the rotational motion can be realized at the same time, and the generated compound motion can make the mechanical arm lift and lower along the effective length of the long gear, so that the mechanical arm can be rotated clockwise or counterclockwise, so that the stone chip agglomerates are fully loosened, so that the raw materials can smoothly enter the conveyor belt through the hopper, and manpower and time are saved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the device of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the rotating assembly of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 11. Column; 12. Base; 13. Main cylinder; 14. Auxiliary cylinder; 15. Lower transmission shaft; 16. Six-spline shaft; 21. Mounting plate; 22. Mounting box; 23. Large gear; 24. Upper transmission shaft; 25. Robotic arm; 251. Oil-containing bearing; 26. Servo motor; 27. Long gear. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1-Figure 2 As shown, this embodiment is a concrete stone chip loosening mechanical arm rotation mechanism, comprising:

[0027] The main assembly includes a master cylinder 13 and a lower transmission shaft 15 installed between the inner sides of the master cylinder 13;

[0028] The main cylinder 13 is used to fix the upper mounting plate 21, the lower transmission shaft 15 is connected to the six-spline shaft 16, the six-spline shaft 16 and the transmission shaft are integrated and connected to the large gear 23, and the lifting and rotating movements of the mechanical arm 25 are realized under the meshing transmission of the auxiliary cylinder and the long gear 27.

[0029] The fixing assembly includes a mounting plate 21 fixedly mounted on the top of the master cylinder 13 and a mounting box 22 fixed on the top of the mounting plate 21 .

[0030] Rotating assembly, a mechanical arm 25 passing through the top of the mounting box 22, an upper transmission shaft 24 fixed to the bottom of the mechanical arm 25, and a large gear 23 fixed to the upper transmission shaft 24;

[0031] The bottom end of the upper transmission shaft 24 is connected to the top end of the six-spline shaft 16, and the upper part of the six-spline shaft 16 passes through the installation box 22 and is connected to the mechanical arm 25;

[0032] The mounting plate 21 is used for mounting the mounting box 22, the long gear 27 and the servo motor 26. It is also an important component for mounting and positioning the upper transmission shaft 24 and the long gear shaft, and is also a sealing device for the gear transmission system. The mechanical arm 25 is used to loosen the agglomerated stones. The upper transmission shaft 24 is used for mounting and positioning the large gear 23, which is meshed with the long gear 27.

[0033] A servo motor 26 is fixedly connected to the bottom end of one side of the installation box 22, and the output end shaft of the servo motor 26 extends to the top of the installation box 22, and a long gear 27 is fixedly connected to the surface of the shaft;

[0034] The servo motor 26 drives the long gear 27 to rotate, and the signal obtained by the pressure sensor is centrally controlled by the PLC to realize the forward or reverse rotation of the servo motor 26;

[0035] The long gear 27 meshes with the large gear 23, and an oil-containing bearing 251 is installed at the connection between the mechanical arm 25 and the installation box 22;

[0036] The up and down movement of the large gear 23 is achieved by the auxiliary cylinder to mesh with the long gear 27 rotating forward or reversely. The resulting compound motion enables the mechanical arm 25 to rise and fall along the effective length of the long gear 27, and at the same time, it can also rotate around the long gear 27;

[0037] 251 is a powder metallurgy oil-containing bearing, and the connection between the servo motor 26 and the mounting plate 21 and the connection between the rotating shaft and the mounting box 22 are both provided with oil-containing bearings 251;

[0038] The main assembly also includes a base 12 fixed between the bottom ends of the cylinders 13, two sets of columns 11 fixed to the bottom surface of the base 12, a six-spline shaft 16 fixed to the top end of the lower transmission shaft 15, and a secondary cylinder body 14 placed inside the main cylinder 13;

[0039] The base 12 is the mounting plate of the entire body, the column 11 is used for the mounting support of the whole body and the ground, the upper transmission shaft 24 is an integrated structure, and the auxiliary cylinder body 14 is pneumatically controlled by the piston of the main cylinder 13 to realize the lifting of the auxiliary cylinder, that is, the up and down movement of the large gear 23 can be realized, and at the same time, it meshes with the long gear 27 on the side to realize the 360° rotation of the robot arm.

[0040] Working principle:

[0041] The main cylinder 13 starts to start, and the piston of the main cylinder 13 pushes the auxiliary cylinder to move up and down, thereby realizing the lifting and lowering of the mechanical arm 25, and starting the servo motor 26 at the same time. Then, through the signal obtained by the pressure sensor, after centralized control by the PLC, the servo motor 26 is realized to rotate forward or reverse, thereby making the long gear 27 rotate forward or reverse. Through the meshing of the two gears, the mechanical arm is driven to realize 360° forward or reverse rotation;

[0042] At this time, the large gear 23 moving up and down meshes with the long gear 27 rotating forward or reversely, so that the large gear 23 and the long gear 27 mesh and rotate in a circle around the axis of the upper transmission shaft 24, and rise or fall along the effective length (effective working stroke) of the long gear 27, thereby causing the mechanical arm 25 to rotate clockwise or counterclockwise, so that the stone chips agglomerates are fully loosened;

[0043] In the above steps, the mechanical arm 25 loosens the agglomerated stone chips through the interaction between the gears.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. 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 concrete stone chip loosening mechanical arm rotation mechanism, characterized in that: include: The main body assembly includes a main cylinder (13) and a lower transmission shaft (15) installed between the inner sides of the main cylinder (13); A fixing assembly comprises a mounting plate (21) fixedly mounted on the top of the main cylinder (13) and a mounting box (22) fixed on the top of the mounting plate (21); The rotating assembly comprises a mechanical arm (25) penetrating the top of the installation box (22), an upper transmission shaft (24) fixed to the bottom of the mechanical arm (25), and a large gear (23) fixed below the surface of the upper transmission shaft (24); The bottom end of the upper transmission shaft (24) is connected to the top end of the six-spline shaft (16), and the upper part of the six-spline shaft (16) passes through the installation box (22) and is connected to the mechanical arm (25).

2. A concrete stone chip loosening mechanical arm rotating mechanism according to claim 1, characterized in that: A servo motor (26) is fixedly connected to the bottom end of one side of the installation box (22), and a rotating shaft at the output end of the servo motor (26) extends to the top end of the installation box (22), and a long gear (27) is fixedly connected to the surface of the rotating shaft.

3. A concrete stone chip loosening mechanical arm rotating mechanism according to claim 2, characterized in that: The long gear (27) is meshed with the large gear (23), and an oil-containing bearing (251) is placed at the connection between the mechanical arm (25) and the installation box (22).

4. The concrete stone chip loosening mechanical arm rotating mechanism according to claim 1, characterized in that: The main body assembly also includes a base (12) fixed between the bottom ends of the cylinder (13), two groups of columns (11) fixed to the bottom surface of the base (12), a six-spline shaft (16) fixed to the top end of the lower transmission shaft (15), and a sub-cylinder body (14) placed inside the cylinder (13).

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