Rocker arm capable of being lubricated and protected

Abstract

The rocker arm capable of being lubricated and protected comprises a driving arm and a bucket, a hinge seat a is assembled on the upper side of the end of the driving arm, and a rotating shaft a is hinged to the interior of the hinge seat a; a connecting rod is rotationally connected to the exterior of the rotating shaft a, a rotating shaft b is hinged to the end of the connecting rod, and a rocker is rotationally connected to the rotating shaft b; two auxiliary plates are assembled on the outer wall of the bucket, and a rotating shaft c is assembled between the two auxiliary plates; a hinge cylinder is assembled at the end part of the rocker and sleeves the outer part of the rotating shaft c; lubricating cylinders are assembled at the two ends of the hinge cylinder, lubricating cavities are evenly formed in the inner wall of the hinge cylinder, and lubricating balls are installed in the lubricating cavities; according to the rocker arm capable of being lubricated and protected, the lubricating cylinder is arranged at the matching position of the rotating shaft and the hinged cylinder, lubricating protection is conducted through the lubricating cavity and the lubricating balls in the hinged cylinder during matching, the lubricating cylinders are arranged on the two sides of the hinged cylinder, after lubricating oil is consumed, hard friction between the hinged cylinder and the rotating shaft can be reduced, and then the rocker arm is prevented from being damaged.

Description

Technical Field

[0001] This patent relates to the field of rocker arms, specifically a rocker arm that can be lubricated and protected. Background Art

[0002] The materials excavated by excavators are mainly soil, coal, silt, and pre-loosened soil and rocks. From the development of engineering machinery in recent years, the development of excavators is relatively fast, and excavators have become one of the most important engineering machinery in engineering construction. With the development of society, people's technical requirements for excavators are getting higher and higher, especially requiring the excavator bucket to have greater digging force.

[0003] In the prior art, the power for driving the bucket to dig is mostly a double rocker mechanism composed of a hinged four-bar structure. The bucket is swung by directly pushing and pulling the connecting rod through a hydraulic cylinder to achieve excavation operations. However, the rotation between the rocker arm and the bucket does not have lubrication protection. Traditionally, lubricating oil is added to the rotating shaft. After the lubricating oil is consumed, hard friction is likely to occur, causing damage. Therefore, the prior art needs to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of this patent is to provide a rocker arm that can be lubricated and protected.

[0005] The technical solution adopted by this patent to solve its technical problem is: a lubricable and protected rocker arm, including a driving arm and a bucket, the upper side of the end of the driving arm is equipped with an articulated seat a, and a rotating shaft a is hinged in the articulated seat a;

[0006] The outside of the rotating shaft a is equipped with a connecting rod rotatably connected, the end of the connecting rod is hinged with a rotating shaft b, and the rotating shaft b is rotatably connected with a rocker;

[0007] The outer wall of the bucket is equipped with two auxiliary plates, and a rotating shaft c is installed between the two auxiliary plates;

[0008] The end of the rocker is equipped with a hinge cylinder, and the hinge cylinder is sleeved on the outside of the rotating shaft c;

[0009] Both ends of the hinge cylinder are equipped with lubrication cylinders, and the inner wall of the hinge cylinder is evenly provided with lubrication cavities, and lubrication beads are installed in the lubrication cavities.

[0010] Furthermore, a heat dissipation groove is provided on the outer wall of the articulated cylinder, a fixing sleeve is clamped on the outer middle section of the articulated cylinder, and the end of the rocker is connected to the fixing sleeve.

[0011] Furthermore, the hinged tube includes an alloy layer, pre-hardened steel and an external film, and the pre-hardened steel is arranged inside the alloy layer, and the external film is adhered to the outer wall around the alloy layer.

[0012] Furthermore, the lubrication cylinder includes a cylinder seat a and a cylinder seat b which are arranged opposite to each other, the inner walls of the cylinder seat a and the cylinder seat b are evenly provided with rotation cavities, balls are installed in the rotation cavities, the outer walls of the cylinder seat a and the cylinder seat b are provided with oil filling holes, and hole plugs are inserted in the oil filling holes.

[0013] Furthermore, both side walls of the cartridge seat a and cartridge seat b are provided with fixing plates, the side walls of the fixing plates are provided with screw holes, and bolts are screwed into the screw holes.

[0014] Furthermore, a rotating shaft d is installed at the lower side between the two auxiliary plates, and the auxiliary plate is rotatably connected to the end of the driving arm through the rotating shaft d.

[0015] The beneficial effects of this patent are:

[0016] A rocker arm with lubrication protection has a simple structure and is easy to operate. It is connected to the rocker on the driving arm through the cooperation of the rotating shaft and the articulated cylinder between the driving arm and the bucket, and a lubrication cylinder is arranged at the cooperation of the rotating shaft and the articulated cylinder. Lubrication protection is performed through the lubrication cavity and lubrication beads in the articulated cylinder during cooperation. Lubrication cylinders are arranged on both sides of the articulated cylinder. After the lubricating oil is consumed, the hard friction between the articulated cylinder and the rotating shaft can be reduced, thereby avoiding damage to the rocker arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of this patent.

[0018] Figure 2 It is a schematic diagram of the articulated cylinder of this patent.

[0019] Figure 3 It is a schematic diagram of the lubrication cylinder of this patent.

[0020] Figure 4 This is a schematic diagram of the structure of Part A of this patent.

[0021] Explanation of the reference numerals: 1 driving arm, 2 bucket, 3 auxiliary plate, 31 lubricating cylinder, 311 cylinder seat a, 312 cylinder seat b, 32 articulated cylinder, 33 fixing sleeve, 4 rocker, 5 rotating shaft b, 6 connecting rod, 7 articulated seat a, 8 rotating shaft d, 9 rotating shaft c, 10 lubricating ball, 11 lubricating cavity, 12 oil filling hole, 13 bolt, 14 fixing plate, 15 screw hole, 16 ball, 17 rotating cavity, 18 connecting rod, 19 heat dissipation groove. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0023] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 This is a schematic diagram of the structure of the patent, a lubricable and protected rocker arm, including a driving arm 1 and a bucket 2, the upper side of the end of the driving arm 1 is equipped with an articulated seat a 7, a rotating shaft a 6 is hinged in the articulated seat a 7, a driving chamber is provided in the driving arm 1, and a hydraulic rod is provided in the driving chamber;

[0024] The outside of the rotating shaft a 6 is equipped with a connecting rod 18 which is rotatably connected, the end of the connecting rod 18 is hinged with the rotating shaft b 5, the rotating shaft b 5 is rotatably connected with the rocker 4, the lower end of the connecting rod 18 is hinged with the hydraulic rod, and the transmission mode and other structures between the driving arm 1 and the bucket 2 are the same as those in the patent number CN211200510U;

[0025] The outer wall of the bucket 2 is equipped with two auxiliary plates 3, and a rotating shaft c 9 is installed between the two auxiliary plates 3;

[0026] The end of the rocker 4 is equipped with an articulated cylinder 32, which is sleeved on the outside of the rotating shaft c 9. The articulated cylinder 32 can rotate on the outside of the rotating shaft c 9, thereby driving the bucket 2 to swing;

[0027] Both ends of the hinge cylinder 32 are equipped with lubrication cylinders 31. The inner wall of the hinge cylinder 32 is evenly provided with lubrication cavities 11. Lubrication beads 10 are installed in the lubrication cavities 11. The lubrication cylinder 31 is also sleeved on the outside of the rotating shaft c 9. The lubrication beads 10 can rotate in the lubrication cavity 11, and the outside of the lubrication beads 10 is coated with lubricating oil to lubricate the hinge cylinder 32 and the rotating shaft c 9.

[0028] The outer wall of the articulated cylinder 32 is provided with a heat dissipation groove 19, and a fixing sleeve 33 is clamped in the outer middle section of the articulated cylinder 32. The end of the rocker 4 is connected to the fixing sleeve 33. The setting of the heat dissipation groove 19 can reduce the contact area between the articulated cylinder 32 and the rotating shaft c9, thereby improving heat dissipation. The setting of the fixing sleeve 33 can improve the strength of the articulated cylinder 32 after the clamping groove, and facilitate the connection of the rocker 4.

[0029] The hinge tube 32 includes an alloy layer, pre-hardened steel and an external film, wherein the interior of the alloy layer is provided with the pre-hardened steel, and the outer wall around the alloy layer is adhered with the external film.

[0030] The lubricating cylinder 31 comprises a cylinder seat a 311 and a cylinder seat b 312 which are arranged opposite to each other. The inner walls of the cylinder seats a 311 and the cylinder seats b 312 are evenly provided with rotating cavities 17, and balls 16 are installed in the rotating cavities 17. The cylinder seats a 311 and the cylinder seats b 312 are semicircular structures. The balls 16 are in contact with the rotating shaft c 9, thereby avoiding contact between the rotating shaft c 9 and the inner wall of the lubricating cylinder 31 and avoiding hard friction. The outer walls of the cylinder seats a 311 and the cylinder seats b 312 are provided with oil filling holes 12, and hole plugs are inserted in the oil filling holes 12. Lubricating oil can be added to the rotating cavity 17 through the oil filling holes 12.

[0031] The two side walls of the cartridge seat a 311 and the cartridge seat b 312 are both installed with fixing plates 14, the side walls of the fixing plates 14 are provided with screw holes 15, and bolts 13 are screwed into the screw holes 15, so that the two cartridge seats are fixedly assembled by means of threaded connection.

[0032] A rotating shaft d 8 is installed at the lower side between the two auxiliary plates 3 , and the auxiliary plate 3 is rotatably connected to the end of the driving arm 1 via the rotating shaft d 8 .

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lubricable and protected rocker arm, comprising a drive arm (1) and a bucket (2), characterized in that: An articulated seat a (7) is mounted on the upper side of the end of the driving arm (1), and a rotating shaft a (6) is hingedly connected inside the articulated seat a (7); The rotating shaft a (6) is externally provided with a connecting rod (18) which is rotatably connected thereto, the end of the connecting rod (18) is hingedly connected to the rotating shaft b (5), and the rotating shaft b (5) is rotatably connected to a rocker (4); The outer wall of the bucket (2) is equipped with two auxiliary plates (3), and a rotating shaft c (9) is installed between the two auxiliary plates (3); The end of the rocker (4) is equipped with a hinge cylinder (32), and the hinge cylinder (32) is sleeved on the outside of the rotating shaft c (9); Both ends of the hinge cylinder (32) are equipped with lubrication cylinders (31), and the inner wall of the hinge cylinder (32) is evenly provided with lubrication cavities (11), and lubrication beads (10) are installed in the lubrication cavities (11).

2. A lubricable and protected rocker arm according to claim 1, characterized in that: The outer wall of the hinge cylinder (32) is provided with a heat dissipation groove (19), a fixing sleeve (33) is clamped on the outer middle section of the hinge cylinder (32), and the end of the rocker (4) is connected to the fixing sleeve (33).

3. A lubricable and protected rocker arm according to claim 2, characterized in that: The hinged tube (32) comprises an alloy layer, pre-hardened steel and an external film, wherein the interior of the alloy layer is provided with the pre-hardened steel, and the outer wall around the alloy layer is adhered with the external film.

4. The lubricable and protected rocker arm according to claim 1, characterized in that: The lubricating cylinder (31) comprises a cylinder seat a (311) and a cylinder seat b (312) which are arranged opposite to each other, the inner walls of the cylinder seat a (311) and the cylinder seat b (312) are evenly provided with rotation cavities (17), a ball (16) is installed in the rotation cavity (17), and the outer walls of the cylinder seat a (311) and the cylinder seat b (312) are provided with oil injection holes (12), and hole plugs are inserted into the oil injection holes (12).

5. A lubricable and protected rocker arm according to claim 4, characterized in that: Both side walls of the cartridge seat a (311) and the cartridge seat b (312) are provided with fixing plates (14), and the side walls of the fixing plates (14) are provided with screw holes (15), and bolts (13) are screwed into the screw holes (15).

6. The lubricable and protected rocker arm according to claim 1, characterized in that: A rotating shaft d (8) is installed on the lower side between the two auxiliary plates (3), and the auxiliary plate (3) is rotatably connected to the end of the driving arm (1) via the rotating shaft d (8).

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