Connecting structure of first-stage oil cylinder and second-stage oil cylinder of wet spraying manipulator

Abstract

The utility model relates to the technical field of wet spraying manipulator structures, in particular to a connecting structure of a first-stage oil cylinder and a second-stage oil cylinder of a wet spraying manipulator, which is provided with the first-stage oil cylinder and the second-stage oil cylinder, an output shaft of the first-stage oil cylinder is fixedly connected with the second-stage oil cylinder through a connecting seat, and an output shaft of the second-stage oil cylinder is connected with a material conveying mechanism through a connecting arm. The device is characterized in that a through hole is formed in the middle of an output shaft of the secondary oil cylinder, a connecting bolt is arranged in the through hole, the connecting bolt extends into the through hole of the output shaft through the upper end of the through hole, extends out of the lower end of the through hole, penetrates through a connecting hole of the material conveying mechanism and then is connected with a connecting nut, and a bolt head of the connecting bolt is round. An L-shaped plate is arranged at the upper end of the connecting bolt, the vertical portion of the L-shaped plate is fixedly connected with the connecting base, the transverse portion of the L-shaped plate is connected with a protective cover, the protective cover covers a bolt head of the connecting bolt, and the connecting structure has the advantages of being simple in structure, high in connecting strength, stable in connecting structure and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of wet spraying manipulator structures, in particular to a connection structure between a primary oil cylinder and a secondary oil cylinder of a wet spraying manipulator with a simple structure, high connection strength and stable connection structure. Background Art

[0002] As we all know, concrete spraying robots are widely used in construction. They use compressed air or other power sources to transport a precisely proportioned mixture through a pipe and spray it at high speed onto the surface where it solidifies, forming a concrete support layer. Shotcrete technology is simple, cost-effective, and widely applicable, making it a vital tool in various construction applications.

[0003] At present, the mechanism for controlling the rotation of the injection head provided in the existing concrete injection robot is a rotating and swinging mechanism. The rotating and swinging mechanism includes a primary oil cylinder and a secondary oil cylinder. The primary oil cylinder is fixed on the output end of the extension arm of the mobile machinery, and the output shaft of the primary oil cylinder is fixedly connected to the cylinder seat of the secondary oil cylinder. The secondary oil cylinder is connected to the primary oil cylinder in a vertical state, and the output shaft of the secondary oil cylinder faces downward and is connected to the material conveying mechanism in the horizontal direction. Since the primary oil cylinder and the secondary oil cylinder are connected in a vertical state, the output shaft of the secondary oil cylinder is connected to the material conveying mechanism in the horizontal direction. Therefore, the output shaft of the secondary oil cylinder will generate an inclined force under the heavy pressure of the material conveying mechanism, and at the same time be restricted by the output shaft of the horizontal primary oil cylinder. Therefore, the output shaft of the secondary oil cylinder is subjected to a greater inclined force. Once the output shaft of the secondary oil cylinder tilts, it will cause the rotation of the secondary oil cylinder to jam, and affect the service life of the secondary oil cylinder, and also reduce the connection strength and connection stability of the secondary oil cylinder. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art and to provide a connection structure between the first-stage oil cylinder and the second-stage oil cylinder of a wet spraying manipulator with a simple structure, high connection strength and stable connection structure.

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

[0006] A connection structure between a first-level oil cylinder and a second-level oil cylinder of a wet spraying robot is provided with a first-level oil cylinder and a second-level oil cylinder. The output shaft of the first-level oil cylinder is fixedly connected to the second-level oil cylinder via a connecting seat, and the output shaft of the second-level oil cylinder is connected to a material conveying mechanism via a connecting arm. It is characterized in that a through hole is provided in the middle portion of the output shaft of the second-level oil cylinder, and a connecting bolt is provided in the through hole. The connecting bolt extends into the upper end of the output shaft through the through hole and extends out through the lower end of the through hole, then passes through the connecting hole of the material conveying mechanism and is connected to the connecting nut. The bolt head of the connecting bolt is circular, and an L-shaped plate is provided at the upper end of the connecting bolt. The vertical portion of the L-shaped plate is fixedly connected to the connecting seat, and the transverse portion of the L-shaped plate is connected to a shield, which covers the bolt head of the connecting bolt.

[0007] The bolt head of the connecting bolt of the utility model is provided with an inner hexagonal groove, which is convenient for locking and positioning the connecting bolt and the connecting nut.

[0008] The L-shaped plate described in the utility model has a mounting hole on its transverse portion, the upper end of the shield is connected to the connecting plate, the lower end of the shield passes through the mounting hole and covers the bolt head, and the connecting plate on the upper end of the shield is detachably connected to the L-shaped plate via bolts.

[0009] The connecting seat of the utility model is configured as a first U-shaped plate, the open end of the first U-shaped plate is fixedly connected to the secondary oil cylinder, and the closed end of the first U-shaped plate is fixedly connected to the output shaft of the primary oil cylinder.

[0010] The connecting arm described in the present invention is configured as a second U-shaped plate, and the two arm ends of the open end of the second U-shaped plate are respectively fixedly connected to the upper and lower ends of the output shaft of the secondary oil cylinder, and the lower end of the second U-shaped plate fixedly connected to the lower end of the output shaft of the secondary oil cylinder is fixedly connected to the material conveying mechanism.

[0011] The material conveying mechanism described in the utility model includes a fixed frame, a conveying pipe and a conveying swing motor. The fixed frame is provided with a connecting hole. The fixed frame is fixedly connected to the output shaft of the secondary oil cylinder through a connecting bolt and a connecting nut passing through the connecting hole. The fixed frame is fixedly connected to the conveying swing motor, and the output shaft of the conveying swing motor is fixedly connected to the conveying pipe.

[0012] The inner wall of the protective cover of the utility model is connected to the bolt head of the connecting bolt in a sealing and rotatable manner.

[0013] Due to the adoption of the above structure, the utility model has the advantages of simple structure, high connection strength, stable connection structure, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 yes Figure 1 sectional view of .

[0016] Figure 3 yes Figure 2 Schematic diagram of the structure of the connecting bolts. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] As shown in the accompanying drawings, a connection structure between the first-level oil cylinder and the second-level oil cylinder of a wet spraying manipulator is provided with a first-level oil cylinder 1 and a second-level oil cylinder 2. The output shaft of the first-level oil cylinder 1 is fixedly connected to the second-level oil cylinder 2 via a connecting seat 3, and the output shaft of the second-level oil cylinder 2 is connected to the material conveying mechanism via a connecting arm 4. It is characterized in that a through hole 5 is provided in the middle of the output shaft of the second-level oil cylinder 2, and a connecting bolt 6 is provided in the through hole 5. The connecting bolt 6 extends into the upper end of the output shaft through the through hole 5 and extends out through the lower end of the through hole 5, then passes through the connecting hole of the material conveying mechanism and is connected to the connecting nut 7. The bolt head of the connecting bolt 6 is circular, and an L-shaped plate 8 is provided at the upper end of the connecting bolt 6. The vertical part of the L-shaped plate 8 is fixedly connected to the connecting seat 3, and the horizontal part of the L-shaped plate 8 is connected to the shield 9, which covers the bolt head of the connecting bolt 6.

[0019] Furthermore, a hexagonal socket 10 is provided on the bolt head of the connecting bolt 6 to facilitate the locking and positioning of the connecting bolt 6 and the connecting nut 7.

[0020] Furthermore, the transverse part of the L-shaped plate 8 is provided with a mounting hole, the upper end of the shield 9 is connected to the connecting plate 11, the lower end of the shield 9 passes through the mounting hole and covers the bolt head, and the connecting plate 11 at the upper end of the shield 9 is detachably connected to the transverse part of the L-shaped plate 8 by bolts.

[0021] Furthermore, the connecting seat 3 is configured as a first U-shaped plate, the open end of the first U-shaped plate is fixedly connected to the secondary oil cylinder 2 , and the closed end of the first U-shaped plate is fixedly connected to the output shaft of the primary oil cylinder 1 .

[0022] Furthermore, the connecting arm 4 is configured as a second U-shaped plate, and the two arm ends of the open end of the second U-shaped plate are respectively fixedly connected to the upper and lower ends of the output shaft of the secondary oil cylinder 2, and the lower end of the second U-shaped plate fixedly connected to the lower end of the output shaft of the secondary oil cylinder 2 is fixedly connected to the material conveying mechanism.

[0023] Furthermore, the material conveying mechanism includes a fixed frame 12, a conveying pipe 13 and a conveying swing motor 14. The fixed frame 12 is provided with a connecting hole. The fixed frame 12 is fixedly connected to the output shaft of the secondary oil cylinder 2 through the connecting bolt 6 and the connecting nut 7 passing through the connecting hole. The conveying swing motor 14 is fixedly connected to the fixed frame 12, and the output shaft of the conveying swing motor 14 is fixedly connected to the conveying pipe 13.

[0024] Furthermore, the inner wall of the shield 9 is connected to the bolt head of the connecting bolt 6 in a sealed and rotatable manner.

[0025] Furthermore, the through hole 5 of the output shaft of the secondary oil cylinder 2 is set as a conical through hole 5, and the bolt rod of the connecting bolt 6 is set as a conical screw. The conical through hole 5 and the conical screw are fixedly locked and connected, thereby tightly fixing the output shaft of the secondary oil cylinder 2 on the connecting screw to avoid shaking.

[0026] During installation, the present invention fixes the output shaft of the first-stage oil cylinder 1 to the closed end of the first U-shaped plate, fixes the two arms of the open end of the first U-shaped plate to the cylinder wall of the second-stage oil cylinder 2, and fixes the two arms of the open end of the second U-shaped plate to the upper and lower ends of the output shaft of the second-stage oil cylinder 2. At the same time, the fixing frame 12 of the material conveying mechanism is fixed to the arms at the lower end of the second U-shaped plate through bolts. Then, the connecting bolt 6 is passed through the upper end of the through hole 5 of the output shaft of the second-stage oil cylinder 2, and then passed through the lower end of the through hole 5 of the output shaft of the second-stage oil cylinder 2 through the connecting hole on the fixing frame 12 of the material conveying mechanism and locked with the connecting nut 7. Since the bolt head of the connecting bolt 6 is round and has an inner hexagonal groove 10, the locking of the connecting bolt 6 and the connecting nut 7 is achieved by inserting a wrench into the inner hexagonal groove 10 during installation. Then, the shield 9 is inserted into the transverse part of the L-shaped plate 8, and the shield 9 is put on the bolt head of the connecting bolt 6 and is sealed and rotatably connected with the bolt head. The connecting plate 11 at the upper end of the shield 9 is locked with the transverse part of the L-shaped plate 8 by bolts, and finally the fixation of the secondary oil cylinder 2 is achieved. Since the output shaft of the secondary oil cylinder 2 is provided with a through hole 5 for the connecting bolt 6 to pass through, the connecting bolt and the through hole are tightly matched and connected. Therefore, the connecting bolt 6 can be tightly inserted into the through hole 5 to avoid shaking between the output shaft of the secondary oil cylinder 2 and the connecting bolt 6, which can further ensure the vertical connection strength of the secondary oil cylinder 2, and finally achieve the overall high connection strength and stable connection structure of the secondary oil cylinder 2. Due to the adoption of the above structure, the utility model has the advantages of simple structure, high connection strength, and stable connection structure.

Claims

1. A connection structure between the first and second oil cylinders of a wet spraying manipulator, comprising a first oil cylinder and a second oil cylinder, wherein the output shaft of the first oil cylinder is fixedly connected to the second oil cylinder via a connecting seat, and the output shaft of the second oil cylinder is connected to the material conveying mechanism via a connecting arm, characterized in that A through hole is provided in the middle of the output shaft of the secondary oil cylinder, and a connecting bolt is provided in the through hole. The connecting bolt extends into the upper end of the output shaft through the through hole and extends out through the lower end of the through hole, then passes through the connecting hole of the material conveying mechanism and is connected to the connecting nut. The bolt head of the connecting bolt is circular, and an L-shaped plate is provided at the upper end of the connecting bolt. The vertical part of the L-shaped plate is fixedly connected to the connecting seat, and the horizontal part of the L-shaped plate is connected to the guard cover, which covers the bolt head of the connecting bolt.

2. The connection structure between the first and second oil cylinders of a wet spraying robot according to claim 1 is characterized in that The bolt head of the connecting bolt is provided with a hexagonal groove to facilitate the locking and positioning of the connecting bolt and the connecting nut.

3. The connection structure between the first and second oil cylinders of a wet spraying robot according to claim 1 is characterized in that The transverse part of the L-shaped plate is provided with a mounting hole, the upper end of the shield is connected to the connecting plate, the lower end of the shield passes through the mounting hole and covers the bolt head, and the connecting plate at the upper end of the shield is detachably connected to the transverse part of the L-shaped plate via bolts.

4. The connection structure between the first and second oil cylinders of a wet spraying robot according to claim 1 is characterized in that The connecting seat is configured as a first U-shaped plate, the open end of the first U-shaped plate is fixedly connected to the secondary oil cylinder, and the closed end of the first U-shaped plate is fixedly connected to the output shaft of the primary oil cylinder.

5. The connection structure between the first and second oil cylinders of a wet spraying robot according to claim 1 is characterized in that The connecting arm is set as a second U-shaped plate, and the two arm ends of the open end of the second U-shaped plate are respectively fixedly connected to the upper and lower ends of the output shaft of the secondary oil cylinder, and the lower end of the second U-shaped plate fixedly connected to the lower end of the output shaft of the secondary oil cylinder is fixedly connected to the material conveying mechanism.

6. The connection structure between the first and second oil cylinders of a wet spraying robot according to claim 1 is characterized in that The material conveying mechanism includes a fixed frame, a conveying pipe and a conveying swing motor. The fixed frame is provided with a connecting hole. The fixed frame is fixedly connected to the output shaft of the secondary oil cylinder through a connecting bolt and a connecting nut passing through the connecting hole. The conveying swing motor is fixedly connected to the fixed frame, and the output shaft of the conveying swing motor is fixedly connected to the conveying pipe.

7. The connection structure between the first and second oil cylinders of a wet spraying robot according to claim 1 is characterized in that The inner wall of the shield is connected to the bolt head of the connecting bolt in a sealed and rotatable manner.

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