Adjustable excavator rocker supporting device

Abstract

The utility model relates to the technical field of excavator part installation, in particular to an adjustable excavator rocker supporting device which comprises a supporting rod and an adjusting screw rod, a flange nut seat is rotatably installed on the adjusting screw rod, the flange nut seat is connected to the top of the supporting rod, the top of the adjusting screw rod is connected with a pressing flange, and a rotating hand wheel is installed at the bottom of the adjusting screw rod. The top of the pressing flange is connected with a rocker support through a rotating assembly. According to the device, rockers of different models and weights can be supported by adjusting the height of the rotating assembly, so that the assembling efficiency and the assembling precision of the excavator rocker are improved, and manual and product corrosion risks and other potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator parts installation, in particular to an adjustable excavator rocker support device. Background Art

[0002] An excavator is a type of earth-moving machinery in the field of engineering machinery and equipment, and is mainly used to dig materials above or below the bearing surface. Among them, the excavator working device directly participates in the excavator operation, mainly including the bucket, boom, dipper rod and various hydraulic cylinders, etc., and the rocker is an important part of the excavator working device. It is located at the front end of the dipper rod and cooperates with the excavator's connecting rod and hydraulic cylinder through a through shaft to control the digging action of the bucket.

[0003] However, the design of the excavator rocker varies slightly in size due to the difference in machine models. At present, when the excavator rocker is assembled through the shaft, it is necessary to adjust the axis matching according to the different rocker heights. The assembly process is completed by manual lifting, which is very inconvenient and has great safety hazards.

[0004] At present, the assembly of the rocker arm of the excavator is done manually without special equipment. The following methods are usually used for manual assembly:

[0005] After the front axle hole of the rocker arm is assembled, the rear axle hole is threaded by manually lifting the rocker arm. First, the front axle of the rocker arm and the front axle end of the bucket arm are assembled manually in advance. After the assembly is completed, the rocker arm is manually lifted to make the rear axle hole of the rocker arm coaxial with the front hinge point of the bucket cylinder and the rear axle hole of the connecting rod. At this time, keep the lifting height of the rocker arm unchanged, and use a rubber hammer at the other end to continuously hit the rear axle of the rocker arm to thread the front hinge point of the bucket cylinder, the rear axle hole of the connecting rod, and the rear axle hole of the rocker arm. This process requires at least 2 people to work together.

[0006] Therefore, when threading the shaft, the position of the rear shaft hole of the rocker cannot be accurately adjusted due to the manual lifting of the rocker, and the hole position cannot be stably aligned due to human factors, resulting in low assembly accuracy, affecting the performance of the entire machine. Secondly, the rocker cannot be completely fixed and clamped due to manual lifting, and the shaft end is easily damaged or scratched during the threading process, which not only affects the assembly efficiency, but also causes the risk of rust on the fuselage. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide an adjustable excavator rocker support device, which can support rockers of different models and weights by adjusting the height of the rotating assembly, so as to improve the assembly efficiency and assembly accuracy of the excavator rocker, and reduce the risks of labor, product corrosion and other safety hazards.

[0008] In order to solve the above problems, the utility model provides an adjustable excavator rocker support device, whose structural characteristics include a support rod and an adjusting screw, a flange nut seat is rotatably installed on the adjusting screw, the flange nut seat is connected to the top of the support rod, and a clamping flange is connected to the top of the adjusting screw, and a rotating hand wheel is installed at the bottom, and the top of the clamping flange is connected to a rocker support drag through a rotating assembly.

[0009] After adopting the above structure, the adjusting screw is driven to rotate on the flange nut seat by turning the rotating hand wheel, thereby changing the height of the rocker support drag. The rotating component can change the angle of the rocker support drag, and the coordinated use facilitates the installation of the rocker.

[0010] Preferably, the rotating assembly includes two upper and lower cross-connecting shafts and two rotatable sleeves arranged on the two connecting shafts, and the two sleeves are fixedly connected to form a cross sleeve, and the upper connecting shaft is hinged to the rocker support drag, and the lower connecting shaft is hinged to the clamping flange. Through the cooperation of the connecting shaft and the sleeve, the rocker support drag can rotate on the clamping flange.

[0011] Preferably, the top of the clamping flange is fixedly connected to a lower support drag, the bottom of the rocker support drag is fixedly connected to an upper support drag, two upper ear plates are arranged on both sides of the bottom of the upper support drag, two lower ear plates are arranged on both sides of the top of the lower support drag, a cross shaft sleeve is placed between the ear plates of the upper support drag and the lower support drag, the connecting shaft passes through the ear plates and the shaft sleeve and is rotatably installed between the upper support drag and the lower support drag, and the upper connecting shaft is hinged to the two upper ear plates, and the lower connecting shaft is hinged to the two lower ear plates. The rocker support drag and the clamping flange are connected through the upper support drag and the lower support drag, and the ear plates can limit the rotation of the rotating assembly.

[0012] Preferably, the connecting shaft is a pin shaft, which has a ring-shaped protrusion at one end and a ring-shaped groove at the other end, and a shaft retaining ring is installed at each of the ring-shaped grooves to prevent the connecting shaft from axially falling out.

[0013] Preferably, the top of the support rod is fixedly connected to a screw rotating platform, a boss is arranged on the upper surface of the flange nut seat, a first through hole matching the boss is opened on the screw rotating platform, the boss portion of the flange nut seat is inserted into the first through hole of the screw rotating platform, and the flange nut seat is connected to the screw rotating platform. The flange nut seat and the support rod are connected through the screw rotating platform to strengthen the connection structure.

[0014] Preferably, the threaded hole of the flange nut seat passes through the boss, and the adjusting screw is rotatably installed on the flange nut seat through the threaded hole of the flange nut seat.

[0015] Preferably, the clamping flange is provided with a first threaded hole adapted to the adjusting screw, and the adjusting screw is threadedly connected to the clamping flange. The adjusting screw shaft head can rotate in the first threaded hole to achieve a radial direction limiting function, thereby constraining the shaft head rotation position and improving the stability of the device.

[0016] Preferably, the support rod comprises a vertical portion at the lower end and an inclined portion at the upper end, and a reinforcing rib plate is provided at the connection between the vertical portion and the inclined portion to strengthen the strength and rigidity of the support rod.

[0017] Preferably, the rocker support is L-shaped, which is convenient for supporting the rocker.

[0018] Preferably, a channel steel support clamp is fixedly connected to the bottom of the support rod, the channel steel support clamp is in an inverted U shape, and two pairs of second through holes penetrating the two side walls of the channel steel support clamp are provided on both sides of the support rod, and a safety pin is provided on the second through hole. The channel steel support clamp is inserted into the channel steel and fixed to the channel steel with the safety pin to provide support for the support device.

[0019] To sum up, the rotating assembly of the utility model can adjust the support angle, and the adjusting screw can adjust the lifting height of the device to adapt to the rocker arms of excavators of different models; it is fixed on the channel steel frame through the channel steel support clamp to support the device; and the adjustable excavator rocker arm support device is exquisitely designed, simple in materials, and has a low manufacturing cost, which is beneficial to supporting the rocker arm assembly operation and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 for Figure 1 Structural schematic diagram of the middle flange nut seat;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the middle connecting shaft;

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the middle clamping flange;

[0024] Figure 5 for Figure 1 Schematic diagram of the structure of the middle cross sleeve;

[0025] In the figure: 1. adjusting screw, 2. supporting rod, 3. flange nut seat, 4. clamping flange, 5. rotating hand wheel, 6. rotating assembly, 61. connecting shaft, 62. bushing, 7. rocker support drag, 8. lower support drag, 9. upper support drag, 10. threaded hole, 11. screw rotating platform, 12. first threaded hole, 13. reinforcing rib plate, 14. annular groove, 15. shaft retaining ring, 16. channel steel support clamp, 17. safety pin. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 this application can be understood according to specific circumstances.

[0030] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0031] See attached Figure 1The utility model discloses an adjustable excavator rocker support device, which comprises a support rod 2 and an adjusting screw 1. A flange nut seat 3 is rotatably installed on the adjusting screw 1. The flange nut seat 3 is connected to the top of the support rod 2. A clamping flange 4 is connected to the top of the adjusting screw 1, and a rotating hand wheel 5 is installed at the bottom. An internal threaded hole is provided at the bottom of the adjusting screw 1. A bolt matching the internal threaded hole of the adjusting screw 1 is provided on the rotating hand wheel 5. The top of the clamping flange 4 is connected to a rocker support drag 7 through a rotating assembly 6. The rocker support drag 7 can rotate on the clamping flange 4.

[0032] See attached Figure 1 and 5 The rotating assembly 6 includes two upper and lower cross-connecting shafts 61 and two rotatable sleeves 62 that are arranged on the two connecting shafts 61, and the two sleeves 62 are fixedly connected to form a cross sleeve, and the upper connecting shaft 61 is hinged to the rocker support drag 7, and the lower connecting shaft 61 is hinged to the clamping flange 4. The rocker support drag 7 can rotate on the clamping flange 4 through the cooperation between the connecting shaft 61 and the cross sleeve.

[0033] See attached Figure 1 and 5 A lower support drag 8 is fixedly connected to the top of the clamping flange 4, and an upper support drag 9 is fixedly connected to the bottom of the rocker support drag 7. Two upper ear plates are arranged on both sides of the bottom of the upper support drag 9, and two lower ear plates are arranged on both sides of the top of the lower support drag 8. A cross shaft sleeve is placed between the ear plates of the upper support drag 9 and the lower support drag 8. The connecting shaft 61 passes through the ear plate and the shaft sleeve 62 and is rotatably installed between the upper support drag 9 and the lower support drag 8. The upper connecting shaft 61 is hinged to the two upper ear plates, and the lower connecting shaft 61 is hinged to the two lower ear plates. The rocker support drag 7 is rotated on the clamping flange 4 through the connection shaft 61, the cross shaft sleeve and the ear plate of the upper support drag 9 and the ear plate of the lower support drag 8. The four second threaded holes are opened on the clamping flange 4, and the second threaded hole corresponding to the second threaded hole is opened at the bottom of the lower support drag 8. The clamping flange 4 and the lower support drag 8 are connected by bolts.

[0034] See attached Figure 1 and 3 The connecting shaft 61 is a pin shaft, and the connecting shaft passes through the ear plate, the shaft sleeve 62 and the ear plate in sequence, so as to hinge the rotating component 1 with the ear plate. The connecting shaft 61 has a structure with an annular protrusion at one end and an annular groove 14 at the other end, and a shaft retaining ring 15 is installed at the annular groove 14. When the rotating component 6 rotates, the shaft retaining ring 15 prevents the connecting shaft 61 from falling off.

[0035] See attached Figure 1 and 2A screw rotating platform 11 is fixedly connected to the top of the support rod 2, a boss is arranged on the upper surface of the flange nut seat 3, a first through hole matched with the boss is opened on the screw rotating platform 11, the boss part of the flange nut seat 3 is inserted into the first through hole of the screw rotating platform 11, and the flange nut seat 3 is connected to the screw rotating platform 11, two third threaded holes are opened on the flange nut seat 3, and two fourth threaded holes corresponding to the third threaded holes are opened on the screw rotating platform 11. The flange nut seat 4 is fixed to the screw rotating platform 11 by the cooperation of bolts and threaded holes. When the flange nut seat 4 needs to be repaired, the flange nut seat 4 is removed by removing the bolts.

[0036] See attached Figure 1 The threaded hole 10 of the flange nut seat 3 passes through the boss, and the adjusting screw 1 is rotatably installed on the flange nut seat 3 through the threaded hole 10 of the flange nut seat 3. The adjusting screw 1 is driven to rotate on the threaded hole 10 of the flange nut seat 3 by rotating the rotating hand wheel 5.

[0037] See attached Figure 1 and 4 A first threaded hole 12 adapted to the adjusting screw 1 is provided on the clamping flange 4 , and the adjusting screw 1 is threadedly connected to the clamping flange 4 .

[0038] See attached Figure 1 The support rod 2 includes a vertical portion at the lower end and an inclined portion at the upper end, and a reinforcing rib plate 13 is provided at the connection between the vertical portion and the inclined portion to improve the supporting capacity of the support plate 2.

[0039] See attached Figure 1 The rocker support 7 is L-shaped, which is convenient for supporting the rocker and preventing it from sliding out sideways.

[0040] See attached Figure 1 A channel steel support clamp 16 is fixedly connected to the bottom of the support rod 2. The channel steel support clamp 16 is an inverted U-shape, and two pairs of second through holes penetrating the two side walls of the channel steel support clamp 16 are opened on both sides of the support rod 2, and a safety pin 17 is arranged on the second through hole. The channel steel support clamp 16 is inserted into the channel steel, and then fixed to the channel steel by the cooperation of the safety pin 17 and the second through hole, thereby fixing the rocker support device.

[0041] In the utility model, the working steps of the device are as follows: when working, the device is inserted into the channel steel frame through the channel steel support clamp 10, and is fixed by using the fixing pin 21 to pass through the second through hole. At this time, the rocker support device is fixed, and then the rotating hand wheel 7 is turned to drive the adjusting screw 1 to rotate on the flange nut seat 3, and the height of the rocker support drag 7 is adjusted to a suitable position. The rotating component 6 is rotated to a determined angle and placed at the lower plane position of the excavator rocker arm. After continuing to rotate the rotating hand wheel 7 to make the rear shaft hole of the rocker arm concentric with the cylinder hinge point and the connecting rod shaft hole, the operator installs the shaft in the rocker arm and the connecting rod to complete the shaft threading process.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable excavator rocker support device, characterized in that The invention comprises a support rod (2) and an adjusting screw rod (1), wherein a flange nut seat (3) is rotatably mounted on the adjusting screw rod (1), the flange nut seat (3) is connected to the top of the support rod (2), and the top of the adjusting screw rod (1) is connected to a clamping flange (4), and the bottom is installed with a rotating hand wheel (5), and the top of the clamping flange (4) is connected to a rocker support drag (7) via a rotating assembly (6).

2. The adjustable excavator rocker support device according to claim 1 is characterized in that The rotating assembly (6) comprises two upper and lower cross-connecting shafts (61) and two rotatable shaft sleeves (62) sleeved on the two connecting shafts (61), wherein the two shaft sleeves (62) are fixedly connected to form a cross shaft sleeve, and the upper connecting shaft (61) is hinged to the rocker support (7), and the lower connecting shaft (61) is hinged to the clamping flange (4).

3. The adjustable excavator rocker support device according to claim 2 is characterized in that The top of the clamping flange (4) is connected to a lower support drag (8), and the bottom of the rocker support drag (7) is fixedly connected to an upper support drag (9). Two upper ear plates are arranged on both sides of the bottom of the upper support drag (9), and two lower ear plates are arranged on both sides of the top of the lower support drag (8). A cross shaft sleeve is placed between the ear plates of the upper support drag (9) and the lower support drag (8). The connecting shaft (61) passes through the ear plates and the shaft sleeve (62) and is rotatably installed between the upper support drag (9) and the lower support drag (8), and the upper connecting shaft (61) is hinged to the two upper ear plates, and the lower connecting shaft (61) is hinged to the two lower ear plates.

4. The adjustable excavator rocker support device according to claim 3 is characterized in that The connecting shaft (61) is a pin shaft.

5. The adjustable excavator rocker support device according to claim 1 is characterized in that The top of the support rod (2) is fixedly connected to a screw rotating platform (11); a boss is arranged on the upper surface of the flange nut seat (3); a first through hole matching the boss is provided on the screw rotating platform (11); the boss portion of the flange nut seat (3) is inserted into the first through hole of the screw rotating platform (11), and the flange nut seat (3) is connected to the screw rotating platform (11).

6. The adjustable excavator rocker support device according to claim 5, characterized in that The threaded hole (10) of the flange nut seat (3) passes through the boss, and the adjusting screw (1) is rotatably mounted on the flange nut seat (3) through the threaded hole (10) of the flange nut seat (3).

7. The adjustable excavator rocker support device according to claim 1 is characterized in that The clamping flange (4) is provided with a first threaded hole (12) adapted to the adjusting screw (1), and the adjusting screw (1) is threadedly connected to the clamping flange (4).

8. The adjustable excavator rocker support device according to claim 1 is characterized in that The support rod (2) comprises a vertical portion at a lower portion and an inclined portion at an upper portion, and a reinforcing rib plate (13) is provided at the connection between the vertical portion and the inclined portion.

9. The adjustable excavator rocker support device according to claim 1, characterized in that The rocker support (7) is L-shaped.

10. The adjustable excavator rocker support device according to claim 1, characterized in that A channel steel support clamp (16) is fixedly connected to the bottom of the support rod (2), the channel steel support clamp (16) is in an inverted U shape, and two pairs of second through holes penetrating the two side walls of the channel steel support clamp (16) are provided on both sides of the support rod (2), and a safety pin (17) is provided on the second through hole.

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