Connecting structure for connecting milling and digging head and excavator

Abstract

The utility model relates to the technical field of engineering machinery, and discloses a connecting structure for connecting a milling and digging head and an excavator, which comprises an excavator main body, the milling and digging head is arranged at the front part of the excavator main body, a connecting arm is fixedly connected at the rear part of the milling and digging head, and a mounting block is fixedly connected at the left part of the connecting arm. A fixing frame is fixedly connected to the inner bottom of the mounting block, a sliding rod is fixedly connected to the middle side of the interior of the fixing frame, two moving plates are slidably connected to the exterior of the sliding rod, second springs are arranged on the exterior of the sliding rod, the second springs are arranged on the moving plates, and guide columns are fixedly connected to the front side and the rear side of the interior of the fixing frame. According to the utility model, the movable plate is extruded by the mounting plate, so that the movable plate slides inwards, the movable plate is buffered by extruding the spring I and the spring II, and the impact force during working is buffered, so that the aim of protecting the connection between the movable plate and the mounting block from being loosened easily is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a connection structure for connecting a milling head and an excavator. Background Art

[0002] Usually, when the engineering machinery industry is excavating and loading native soil materials and relatively hard working surfaces, the excavator excavation device used is an L-shaped bucket. Although the excavator using this excavation device has the characteristics of large traction, strong excavation ability and wide practicability, it can only excavate and load hard native soil layers with a hardness of about level three and loose gravel layers. The excavation and loading resistance of hard working surfaces such as cement columns and beams, brick walls and gravel is quite large, resulting in excessive energy consumption, low construction efficiency, early wear of machinery, and even difficulty in normal excavation operations. The service life of the machinery is reduced. Only by adding a dedicated milling and digging machinery equipment room can normal excavation and loading operations be completed, which will greatly increase the construction cost.

[0003] However, when the existing milling and digging heads are connected, the milling and digging heads are fixed on the excavator through a connecting seat to work. Due to the different working scenarios of the excavators, it is necessary to change the type of excavator, which is time-consuming and labor-intensive. Therefore, technical personnel in this field provide a connection structure for connecting a milling and digging head to an excavator to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a connection structure for connecting a milling head to an excavator, aiming to improve the problem in the prior art that different working scenarios of excavators require the replacement of excavator types, which is time-consuming and labor-intensive.

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

[0006] A connecting structure for connecting a milling head and an excavator, comprising an excavator body, a milling head is provided at the front part of the excavator body, a connecting arm is fixedly connected to the rear part of the milling head, a mounting block is fixedly connected to the left part of the connecting arm, a fixing frame is fixedly connected to the inner bottom of the mounting block, a sliding rod is fixedly connected to the inner middle side of the fixing frame, two movable plates are slidably connected to the outside of the sliding rod, a spring 2 is provided on the outside of the sliding rod, the spring 2 is arranged on the movable plate, a guide column is fixedly connected to the front and rear sides of the interior of the fixing frame, an adjusting plate is rotatably connected to the upper part of the movable plate, a movable plate is rotatably connected to the upper part of the adjusting plate, a sliding block is fixedly connected to the outer lower side of the movable plate, a sliding groove is provided in the interior of the mounting block, and a mounting assembly is provided on the upper part of the movable plate.

[0007] Furthermore, the mounting assembly includes a mounting plate, the four internal corners of the mounting plate are all threadedly connected with fixing bolts, the upper part of the mounting plate is fixedly connected to two support plates, the interior of the support plate is provided with a pin shaft, the outside of the pin shaft is fixedly connected with a sleeve, the sleeve passes through the interior of the support plate, and the interior of the sleeve is provided with a cotter pin.

[0008] Furthermore, reinforcing plates are fixedly connected to the four inner corners of the support plate.

[0009] Furthermore, the fixing bolt is threadedly connected inside the movable plate.

[0010] Furthermore, the sliding block is slidably connected inside the sliding groove.

[0011] Furthermore, a crawler is provided at the bottom of the excavator body.

[0012] Furthermore, the guide column is slidably connected inside the movable plate.

[0013] Furthermore, telescopic rods are fixedly connected to both sides of the interior of the mounting block, the upper portion of the telescopic rods is fixedly connected to the lower portion of the movable plate, and a spring 1 is arranged on the exterior of the telescopic rods.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, through the cooperation among structures such as a fixed seat, a motor 1, a threaded rod 2, a threaded plate, a lifting box, a motor 2, a rotating shaft and a mounting frame, the mounting plate and the movable plate are fixed by using fixing bolts, one end of the pin shaft is connected to the excavator, the milling head is fixed to the excavator through the pin shaft, and the slot of the sleeve is fixed by the cotter pin, thereby ensuring that the milling head is firmly connected to the excavator and providing a stable mechanical connection.

[0016] 2. In the utility model, through the cooperation among the structures such as the mounting block, the connecting shaft, the turntable, the gear 2, the gear 1, the bidirectional threaded rod, the sliding plate and the mounting groove, the mounting plate is used to squeeze the movable plate so that the movable plate slides inward, so that the squeezing spring 1 and the spring 2 buffer the movable plate and buffer the impact force during work, thereby achieving the purpose of protecting the connection between the movable plate and the mounting block from being easily loosened. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a connection structure for connecting a milling head and an excavator proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the installation assembly of a connection structure for connecting a milling head and an excavator proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of a mounting block of a connection structure for connecting a milling head and an excavator proposed by the utility model;

[0020] Figure 4 The utility model discloses a fixed frame structure schematic diagram of a connection structure for connecting a milling head and an excavator.

[0021] Legend:

[0022] 1. Excavator body; 2. Mounting block; 3. Connecting arm; 4. Milling head; 5. Track; 6. Pin; 7. Split pin; 8. Sleeve; 9. Reinforcement plate; 10. Mounting plate; 11. Fixing bolt; 12. Support plate; 13. Movable plate; 14. Spring 1; 15. Fixed frame; 16. Adjustment plate; 17. Telescopic rod; 18. Slide; 19. Slider; 20. Slide rod; 21. Spring 2; 22. Movable plate; 23. Guide column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the utility model:

[0025] A connection structure for connecting a milling head and an excavator, comprising an excavator body 1, a milling head 4 is arranged at the front of the excavator body 1, a connecting arm 3 is fixedly connected to the rear of the milling head 4, a mounting block 2 is fixedly connected to the left of the connecting arm 3, a fixed frame 15 is fixedly connected to the inner bottom of the mounting block 2, a sliding rod 20 is fixedly connected to the inner middle side of the fixed frame 15, two moving plates 22 are slidably connected to the outside of the sliding rod 20, a spring 21 is arranged on the outside of the sliding rod 20, the spring 21 is arranged on the moving plate 22, a guide column 23 is fixedly connected to the front and rear sides of the interior of the fixed frame 15, an adjusting plate 16 is rotatably connected to the upper part of the moving plate 22, and a movable plate 1 is rotatably connected to the upper part of the adjusting plate 16 3. A slider 19 is fixedly connected to the lower side of the outer portion of the movable plate 13, a slide groove 18 is provided inside the mounting block 2, telescopic rods 17 are fixedly connected to both sides of the inner portion of the mounting block 2, the upper portion of the telescopic rod 17 is fixedly connected to the lower portion of the movable plate 13, a spring 14 is provided outside the telescopic rod 17, a mounting assembly is provided on the upper portion of the movable plate 13, the mounting assembly includes a mounting plate 10, the four inner corners of the mounting plate 10 are all threadedly connected with fixing bolts 11, the upper portion of the mounting plate 10 is fixedly connected to two support plates 12, a pin shaft 6 is provided inside the support plate 12, a sleeve 8 is fixedly connected to the outer portion of the pin shaft 6, the sleeve 8 passes through the inner portion of the support plate 12, and a cotter pin 7 is provided inside the sleeve 8;

[0026] The mounting plate 10 and the movable plate 13 are fixed by using the fixing bolts 11 through the mounting holes of the mounting plate 10, one end of the pin shaft 6 is connected to the excavator, the milling head 4 is fixed to the excavator through the pin shaft 6, and then the slot of the sleeve 8 outside the pin shaft 6 is fixed by the cotter pin 7, ensuring that the milling head 4 is firmly connected to the excavator, providing a stable mechanical connection. During use, the mounting plate 10 will squeeze the movable plate 13, so that the movable plate 13 slides into the inside of the mounting block 2, and the slider 19 slides and limits in the slide groove 18, and the movable plate 13 drives the adjustment The section plate 16 rotates, and the rotation of the adjustment plate 16 drives the movable plate 22 to slide outside the slide rod 20 inside the fixed frame 15. The guide column 23 slides and limits the movable plate 22, so that the movable plate 22 squeezes the spring 21. At the same time, when the movable plate 13 moves downward, the telescopic rod 17 is extended and retracted, squeezing the external spring 14. The movable plate 13 is buffered by the spring 14 and the spring 21, so that the impact force during work is buffered, thereby achieving the purpose of protecting the connection between the movable plate 13 and the mounting block 2 from being easily loosened, thereby improving the stability and durability of the device.

[0027] Reference Figure 1 , Figure 2 and Figure 4 The four inner corners of the support plate 12 are fixedly connected with a reinforcing plate 9, the fixing bolts 11 are threadedly connected to the inside of the movable plate 13, the slider 19 is slidably connected to the inside of the slide groove 18, and the bottom of the excavator body 1 is provided with a crawler 5;

[0028] The support plate 12 is reinforced by setting a reinforcing plate 9, and the mounting plate 10 and the movable plate 13 can be fixed by connecting the fixing bolts 11 to the internal threads of the movable plate 13. The movable plate 13 can be slidably limited by sliding the slider 19 in the slide groove 18, and the movement of the device is facilitated by setting the crawler 5.

[0029] Working principle: When using this device, use the fixing bolt 11 to fix the mounting plate 10 and the movable plate 13 through the mounting hole of the mounting plate 10, one end of the pin shaft 6 is connected to the excavator, the milling head 4 is fixed to the excavator through the pin shaft 6, and then the slot of the sleeve 8 outside the pin shaft 6 is fixed by the cotter pin 7. During use, the mounting plate 10 will squeeze the movable plate 13, so that the movable plate 13 slides into the inside of the mounting block 2, and the slider 19 slides and limits in the slide groove 18, and the movable plate 13 drives the adjustment plate 16 rotates, and the rotation of the adjusting plate 16 drives the movable plate 22 to slide outside the sliding rod 20 inside the fixed frame 15, and the guide column 23 slides and limits the movable plate 22, so that the movable plate 22 squeezes the spring 21, and at the same time, when the movable plate 13 moves downward, the telescopic rod 17 is extended and retracted, squeezing the external spring 14, and the movable plate 13 is buffered by the spring 14 and the spring 21, so that the impact force during work is buffered, thereby achieving the purpose of protecting the connection between the movable plate 13 and the mounting block 2 from being easily loosened.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection structure for connecting a milling head to an excavator, comprising an excavator body (1), characterized in that: The front part of the excavator body (1) is provided with a milling head (4), the rear part of the milling head (4) is fixedly connected with a connecting arm (3), the left part of the connecting arm (3) is fixedly connected with a mounting block (2), the inner bottom of the mounting block (2) is fixedly connected with a fixing frame (15), the inner middle side of the fixing frame (15) is fixedly connected with a sliding rod (20), the outside of the sliding rod (20) is slidably connected with two moving plates (22), and the outside of the sliding rod (20) is provided with a spring 2 (21 ), the spring 2 (21) is arranged on the movable plate (22), the front and rear sides of the interior of the fixed frame (15) are fixedly connected with guide columns (23), the upper part of the movable plate (22) is rotatably connected with an adjustment plate (16), the upper part of the adjustment plate (16) is rotatably connected with a movable plate (13), the outer lower side of the movable plate (13) is fixedly connected with a slider (19), a slide groove (18) is provided inside the mounting block (2), and a mounting assembly is provided on the upper part of the movable plate (13).

2. A connection structure for connecting a milling head and an excavator according to claim 1, characterized in that: The mounting assembly comprises a mounting plate (10), the four internal corners of the mounting plate (10) are all threadedly connected with fixing bolts (11), the upper part of the mounting plate (10) is fixedly connected with two supporting plates (12), the interior of the supporting plate (12) is provided with a pin shaft (6), the exterior of the pin shaft (6) is fixedly connected with a sleeve (8), the sleeve (8) passes through the interior of the supporting plate (12), and the interior of the sleeve (8) is provided with a cotter pin (7).

3. The connection structure for connecting a milling head and an excavator according to claim 2, characterized in that: The four inner corners of the support plate (12) are all fixedly connected with reinforcement plates (9).

4. The connection structure for connecting a milling head and an excavator according to claim 2, characterized in that: The fixing bolt (11) is threadedly connected inside the movable plate (13).

5. The connection structure for connecting a milling head and an excavator according to claim 1, characterized in that: The sliding block (19) is slidably connected inside the sliding groove (18).

6. The connection structure for connecting a milling head and an excavator according to claim 1, characterized in that: A crawler (5) is provided at the bottom of the excavator body (1).

7. The connection structure for connecting a milling head and an excavator according to claim 1, characterized in that: The guide column (23) is slidably connected inside the moving plate (22).

8. The connection structure for connecting a milling head and an excavator according to claim 1, characterized in that: Telescopic rods (17) are fixedly connected to both sides of the interior of the mounting block (2); the upper portion of the telescopic rod (17) is fixedly connected to the lower portion of the movable plate (13); and a spring (14) is arranged outside the telescopic rod (17).

Images