Belt pulley fastening mechanism for excavator

Abstract

The utility model discloses a belt pulley fastening mechanism for an excavator, which belongs to the field of belt pulleys and comprises a belt pulley body, a supporting mechanism is mounted on the surface of the belt pulley body, an adjusting mechanism is mounted in the belt pulley body, and a bending mechanism is mounted on the surface of the adjusting mechanism. The adjusting mechanism comprises a rotating disc rotationally connected to the interior of the belt pulley body. Through cooperative use of the devices, a rotating rod is rotated according to the diameter of a crawler belt, so that a belt drives a threaded rod to rotate, the threaded rod drives a rotating disc to rotate, an abutting block moves, the abutting block pushes a moving rod to move, the moving rod drives fastening rings to move, and the two fastening rings are far away from each other; and then the connecting position in the crawler belt is installed on the surface of the connecting ring, the two fastening rings are attached to the two sides of the crawler belt, and therefore the crawler belt is fastened and installed through mutual cooperation of the fastening rings and the connecting ring.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a pulley fastening mechanism for an excavator. Background Art

[0002] An excavator, also known as an excavator or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and load them into transport vehicles or unload them to a stockpile. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rock. From the development of construction machinery in recent years, the development of excavators has been relatively rapid. Excavators have become one of the most important construction machinery in engineering construction. The three most important parameters of an excavator are: operating weight (mass), engine power and bucket capacity.

[0003] When some existing excavators are in use, they generally move the excavator by driving the crawler through a pulley, so that the excavator can be moved to different positions when in use. During the use of the pulley, the connection between the pulley and the crawler needs to be stabilized by a pulley fastening mechanism, so that the pulley and the crawler are more stable and safer when in use.

[0004] When most existing pulley fastening mechanisms are in use, the connection between the pulley and the crawler is generally fixed, so that the pulley can only fasten the crawler with the same diameter. Therefore, when the excavator needs to use a crawler with a different diameter, it is necessary to support the crawler by replacing the pulley, which makes it inconvenient to install the excavator pulley and crawler.

[0005] Therefore, the utility model provides a pulley fastening mechanism for an excavator to solve the above problems. Utility Model Content

[0006] (1) Technical problems solved

[0007] The utility model provides a pulley fastening mechanism for an excavator, which aims to solve the problem of the existing pulley fastening mechanism for an excavator proposed in the background technology. When the excavator needs to use crawlers with different diameters, it is necessary to support the crawler by replacing the pulley, which makes it inconvenient to install the excavator pulley and crawler.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a pulley fastening mechanism for an excavator, comprising a pulley body, a support mechanism mounted on the surface of the pulley body, an adjustment mechanism mounted inside the pulley body, and a bending mechanism mounted on the surface of the adjustment mechanism;

[0010] The adjusting mechanism includes a rotating disk rotatably connected to the inside of the pulley body, and both sides of the rotating disk are fixedly connected with a tightening block in an annular array, the surface of the tightening block is fitted with a moving rod, the surface of the moving rod is fixedly connected with an arc plate, both sides of the lower surface of the arc plate are fixedly connected with a return spring, the surface of the pulley body is fixedly connected with a connecting ring, the return spring is fixedly connected to the connecting ring, the moving rod is slidably connected to the inside of the connecting ring, one end of several of the moving rods is fixedly connected to two corresponding fastening rings, the fastening ring is slidably connected to the pulley body, and a driving mechanism is installed on one side of the two rotating disks.

[0011] As a preferred technical solution of the present application, the driving mechanism includes a threaded rod fixedly connected to the middle part of one side of the rotating disk, the threaded rod is threadedly connected to the inside of the pulley body, the threaded rod is connected to a rotating rod through a belt transmission, the rotating rod is rotatably connected to the pulley body, and one end of the rotating rod is fixedly connected to a knob.

[0012] As a preferred technical solution of the present application, the support mechanism includes two connecting plates rotatably connected to both sides of the surface of the pulley body, one side of the connecting plate is fixedly connected to a mounting block by bolts, the inside of the mounting block is fixedly connected to a pull rod by bolts, a cylinder body is installed on the surface of the pull rod, a push rod is inserted into the inside of the cylinder body, and a tension spring is jointly sleeved on the push rod and the surface of the cylinder body.

[0013] As a preferred technical solution of the present application, the support mechanism also includes a connecting block fixedly connected to the surface of the push rod, the push rod is connected to the cylinder body, the lower surface of the connecting block is threadedly connected to an oil inlet pipe, the oil inlet pipe is connected to the push rod through the connecting block, and the two ends of the tension spring are respectively fixedly connected to the mounting block and the connecting block.

[0014] As a preferred technical solution of the present application, the bending mechanism includes a connecting block fixedly connected to one end of the top rod, the internal rotation of the connecting block is connected to a connecting rod, the connecting rod is fixedly connected to the existing excavator, the lower surface of the mounting block is fitted with a support plate, and the lower surface of the support plate is installed with a pushing mechanism.

[0015] As a preferred technical solution of the present application, the pushing mechanism includes two electric push rods rotatably connected to both sides of the lower surface of the support plate through pin shafts, and one end of the two electric push rods is fixedly connected to a support plate, and the support plate is fixedly connected to the existing excavator.

[0016] (3) Beneficial effects

[0017] The cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is then adjusted so that the belt can be moved along the track, and the cam is

[0018] By setting up the adjustment mechanism and the support mechanism and other structures, and by starting the electric push rod, the support plate pushes the mounting block to move, and the supporting mechanism drives the pulley body to rotate through the setting of the connecting rod, and the angle of the supporting mechanism is adjusted, so that the pulley body can support different positions of the crawler, making the pulley body more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a pulley fastening mechanism for an excavator;

[0020] Figure 2 This is a structural diagram of an adjustment mechanism in a pulley fastening mechanism for an excavator;

[0021] Figure 3 This is a schematic diagram of the structure of a rotating disc in a pulley fastening mechanism for an excavator;

[0022] Figure 4 This is a schematic diagram of the structure of a curved plate in a pulley fastening mechanism for an excavator;

[0023] Figure 5 The figure is a structural diagram of a support mechanism in a pulley fastening mechanism for an excavator.

[0024] In the picture:

[0025] 1. Pulley body; 2. Rotating disk; 3. Clamping block; 4. Moving rod; 5. Arc plate; 6. Return spring; 7. Connecting ring; 8. Fastening ring; 9. Threaded rod; 10. Rotating rod; 11. Connecting plate; 12. Mounting block; 13. Pull rod; 14. Cylinder body; 15. Push rod; 16. Connecting block; 17. Oil inlet pipe; 18. Connecting block; 19. Connecting rod; 20. Support plate; 21. Electric push rod; 22. Support plate; 23. Tension spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The utility model provides a pulley fastening mechanism for an excavator, such as Figure 1-Figure 5 The belt pulley 2 of the embodiment of the present invention is a belt pulley for a vehicle, wherein the belt pulley 2 is provided with an adjusting mechanism installed inside the belt pulley 1. The adjusting mechanism comprises a rotating disk 2 rotatably connected to the interior of the belt pulley 1. Both sides of the rotating disk 2 are fixedly connected with a tightening block 3 in an annular array. The surface of the tightening block 3 is affixed with a moving rod 4. The surface of the moving rod 4 is fixedly connected with an arc plate 5. According to the diameter of the crawler track, the rotating rod 10 is rotated to drive the threaded rod 9 to rotate through the belt, thereby causing the threaded rod 9 to drive the rotating disk 2 to rotate, so that the tightening block 3 rotates inside the belt pulley 1, thereby causing the tightening block 3 to drive the moving rod 4 to move, so that the moving rod 4 drives several arc plates 5 to move in the opposite direction. Both sides of the lower surface of the arc plate 5 are fixedly connected with a return spring 6. By setting the return spring 6, the arc plate 5 and the tightening ring 8 are more stable when resetting.

[0028] A connecting ring 7 is fixedly connected to the surface of the pulley body 1, a return spring 6 is fixedly connected to the connecting ring 7, a moving rod 4 is slidably connected to the inside of the connecting ring 7, one end of several moving rods 4 is fixedly connected to two corresponding fastening rings 8, the fastening rings 8 are slidably connected to the pulley body 1, and the arc plate 5 pushes the two fastening rings 8 away from each other, and the distance between the fastening rings 8 and the connecting ring 7 is adjusted, so that the connecting ring 7 and the fastening ring 8 can be installed on crawlers of different diameters;

[0029] A driving mechanism is installed on one side of the two rotating disks 2. The driving mechanism includes a threaded rod 9 fixedly connected to the middle part of one side of the rotating disk 2. The threaded rod 9 is threadedly connected to the inside of the pulley body 1. The threaded rod 9 is connected to a rotating rod 10 through a belt drive. The rotating rod 10 is rotatably connected to the pulley body 1. One end of the rotating rod 10 is fixedly connected to a knob. The setting of the knob makes it more convenient to rotate the rotating rod 10.

[0030] The surface of the pulley body 1 is equipped with a support mechanism, which includes two connecting plates 11 that are respectively rotatably connected to the two sides of the surface of the pulley body 1. One side of the connecting plate 11 is fixedly connected to a mounting block 12 by bolts. The inside of the mounting block 12 is fixedly connected to a pull rod 13 by bolts. A cylinder 14 is installed on the surface of the pull rod 13. A push rod 15 is inserted into the inside of the cylinder 14. A tension spring 23 is jointly sleeved on the surface of the push rod 15 and the surface of the cylinder 14. The support mechanism also includes a connecting block 16 fixedly connected to the surface of the push rod 15. The rod 15 is connected to the cylinder body 14, and the lower surface of the connecting block 16 is threadedly connected with an oil inlet pipe 17. The oil inlet pipe 17 is connected to the push rod 15 through the connecting block 16. The setting of the threaded connection between the oil inlet pipe 17 and the connecting block 16 facilitates the installation and disassembly of the oil inlet pipe 17. Moreover, through the setting of the oil inlet pipe 17, grease can enter the interior of the push rod 15 and the cylinder body 14 through the oil inlet pipe 17, and the position of the cylinder body can be adjusted, thereby adjusting the position of the pulley body 1, which makes the pulley body 1 more convenient to use.

[0031] The two ends of the tension spring 23 are fixedly connected to the mounting block 12 and the connecting block 16 respectively. A bending mechanism is installed on the surface of the adjustment mechanism. The bending mechanism includes a connecting block 18 fixedly connected to one end of the top rod 15. The internal rotation of the connecting block 18 is connected to a connecting rod 19. The connecting rod 19 is fixedly connected to the existing excavator. The lower surface of the mounting block 12 is fitted with a support plate 20. According to the requirements of the crawler installation and tightening, the electric push rod 21 is started, so that the output end drives the support plate 20 to move, so that the support plate 20 pushes the mounting block 12 to move. The lower surface of the support plate 20 is installed with a pushing mechanism. The pushing mechanism includes two electric push rods 21 rotatably connected to both sides of the lower surface of the support plate 20 through a pin shaft. Through the setting of the connecting rod 19, the connecting block 18 drives the mounting block 12 to adjust the angle, so that the supporting mechanism and the pulley body 1 rotate, and the angle of the pulley body 1 is adjusted so that the pulley body 1 can support different positions of the excavator crawler, so that the pulley fastening mechanism can be more convenient for the installation of the excavator crawler. One end of the two electric push rods 21 is fixedly connected to a support plate 22, and the support plate 22 is fixedly connected to the existing excavator.

[0032] Specifically, when the pulley fastening mechanism for the excavator is in use: according to the diameter of the crawler track, the rotating rod 10 is rotated to drive the threaded rod 9 to rotate through the belt, so that the threaded rod 9 drives the rotating disc 2 to rotate, so that the tightening block 3 rotates inside the pulley body 1, so that the tightening block 3 drives the moving rod 4 to move, so that the moving rod 4 drives several curved plates 5 to move in the opposite direction, so that the curved plates 5 push the two fastening rings 8 away from each other, and the distance between the fastening ring 8 and the connecting ring 7 is adjusted, so that the connecting ring 7 and the fastening ring 8 can be installed for crawlers of different diameters, which not only makes the installation of the excavator crawler track and the pulley body 1 more stable, but also makes the pulley body 1 able to install crawlers of different diameters, making it more convenient for the excavator to use different crawlers;

[0033] According to the requirements of track installation and tightening, the electric push rod 21 is started, so that the output end drives the support plate 20 to move, thereby causing the support plate 20 to push the mounting block 12 to move. Through the setting of the connecting rod 19, the connecting block 18 drives the mounting block 12 to adjust the angle, so that the supporting mechanism and the pulley body 1 rotate, and the angle of the pulley body 1 is adjusted, so that the pulley body 1 can support different positions of the excavator track, thereby making the pulley tightening mechanism more convenient for the installation of the excavator track.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pulley fastening mechanism for an excavator, comprising a pulley body (1), characterized in that: A supporting mechanism is installed on the surface of the pulley body (1), an adjusting mechanism is installed inside the pulley body (1), and a bending mechanism is installed on the surface of the adjusting mechanism; The adjusting mechanism comprises a rotating disk (2) rotatably connected to the inside of the pulley body (1), both sides of the rotating disk (2) are fixedly connected with abutting blocks (3) in an annular array, the surface of the abutting blocks (3) is fitted with a moving rod (4), the surface of the moving rod (4) is fixedly connected with an arc plate (5), both sides of the lower surface of the arc plate (5) are fixedly connected with a return spring (6), the surface of the pulley body (1) is fixedly connected with a connecting ring (7), the return spring (6) is fixedly connected to the connecting ring (7), the moving rod (4) is slidably connected to the inside of the connecting ring (7), one end of a plurality of the moving rods (4) is fixedly connected to two corresponding fastening rings (8), the fastening ring (8) is slidably connected to the pulley body (1), and a driving mechanism is installed on one side of the two rotating disks (2).

2. The pulley fastening mechanism for an excavator according to claim 1, characterized in that: The driving mechanism comprises a threaded rod (9) fixedly connected to the middle part of one side of the rotating disk (2), the threaded rod (9) being threadedly connected to the inside of the pulley body (1), the threaded rod (9) being connected to a rotating rod (10) via a belt transmission, the rotating rod (10) being rotationally connected to the pulley body (1), and one end of the rotating rod (10) being fixedly connected to a knob.

3. The pulley fastening mechanism for an excavator according to claim 1, characterized in that: The support mechanism comprises two connecting plates (11) which are rotatably connected to both sides of the surface of the pulley body (1), one side of the connecting plate (11) is fixedly connected to a mounting block (12) by bolts, the interior of the mounting block (12) is fixedly connected to a pull rod (13) by bolts, a cylinder (14) is installed on the surface of the pull rod (13), a push rod (15) is inserted into the interior of the cylinder (14), and a tension spring (23) is jointly sleeved on the surface of the push rod (15) and the surface of the cylinder (14).

4. The pulley fastening mechanism for an excavator according to claim 3, characterized in that: The support mechanism further comprises a connecting block (16) fixedly connected to the surface of the push rod (15); the push rod (15) is connected to the cylinder body (14); the lower surface of the connecting block (16) is threadedly connected to an oil inlet pipe (17); the oil inlet pipe (17) is connected to the push rod (15) through the connecting block (16); and the two ends of the tension spring (23) are fixedly connected to the mounting block (12) and the connecting block (16), respectively.

5. The pulley fastening mechanism for an excavator according to claim 4, characterized in that: The bending mechanism comprises a connecting block (18) fixedly connected to one end of a top rod (15); a connecting rod (19) is rotatably connected to the interior of the connecting block (18); the connecting rod (19) is fixedly connected to an existing excavator; a supporting plate (20) is attached to the lower surface of the mounting block (12); and a pushing mechanism is installed on the lower surface of the supporting plate (20).

6. The pulley fastening mechanism for an excavator according to claim 5, characterized in that: The pushing mechanism comprises two electric push rods (21) rotatably connected to both sides of the lower surface of the support plate (20) via pin shafts, one end of the two electric push rods (21) is fixedly connected to a support plate (22), and the support plate (22) is fixedly connected to an existing excavator.

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