Lifting appliance for middle shaft seat of movable arm of excavator

Abstract

The utility model provides a lifting appliance for a middle shaft seat of a movable arm of an excavator, which belongs to the technical field of excavator production and comprises a lifting scaffold, a plurality of lifting rods are rotatably connected to the outer side wall of the lifting scaffold, clamping blocks are rotatably connected to one ends, far away from the lifting scaffold, of the lifting rods, and clamping grooves are formed in one ends, far away from the lifting rods, of the clamping blocks. According to the utility model, safe and stable hoisting of the middle shaft seat of the movable arm of the excavator can be realized, and the hoisting requirements of middle shaft seats with different apertures are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavator production, in particular to a central axis seat hanger for an excavator boom. Background Art

[0002] During the side-lying assembly and welding process of the middle section of the excavator boom, the center axis seat needs to be vertically hoisted for assembly. The existing center axis seat hoisting usually uses a magnetic hoist, which is magnetically sucked onto the center axis seat for hoisting. Since the center axis seat has an axial hole, when the magnetic hoist is magnetically sucked onto the center axis seat, the hoisting contact area is small and it is easy to fall, posing a safety hazard.

[0003] In addition, due to the different apertures of the center axis seat, in order to meet the lifting requirements, the factory needs to be equipped with magnetic devices of different sizes to lift the center axis seat, which increases production costs, and at the same time, the constant replacement of tooling reduces production efficiency. Utility Model Content

[0004] In view of the defects or shortcomings in the prior art, the utility model provides an excavator boom center axis seat hoist, which can realize the safe and stable hoisting of the excavator boom center axis seat and meet the hoisting requirements of center axis seats with different apertures.

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

[0006] An embodiment of the utility model provides a central axis seat hoist of an excavator boom, including a hanging plate, a plurality of hanging rods are rotatably connected to the outer wall of the hanging plate, a clamping block is rotatably connected to one end of the hanging rod away from the hanging plate, and a clamping groove is formed at one end of the clamping block away from the hanging rod.

[0007] Furthermore, a lifting ring is fixedly provided on the top of the lifting platform, and the lifting ring is used to connect to a crane hook.

[0008] Furthermore, the suspension rod is an arc-shaped rod, and a plurality of suspension rods are combined to form a truncated cone-shaped structure that is narrow at the top and wide at the bottom.

[0009] Furthermore, a plurality of upper connecting forks are fixed on the side walls of the hanging plate, the upper connecting forks are U-shaped structures, and first through holes are opened on the side walls on both sides of the upper connecting forks.

[0010] Furthermore, a lower connecting fork is provided at one end of the clamping block away from the clamping groove, and the lower connecting fork is a U-shaped structure. Second through holes are provided on the side walls on both sides of the lower connecting fork.

[0011] Furthermore, a first axial hole is formed at the top end of the suspension rod, and a second axial hole is formed at the bottom end of the suspension rod.

[0012] Furthermore, the top end of the suspension rod is placed between the two side walls of the upper connecting fork, and the bottom end of the suspension rod is placed between the two side walls of the lower connecting fork.

[0013] Furthermore, the upper connecting fork is rotatably connected to the top end of the suspension rod through bolts and nuts, and the lower connecting fork is rotatably connected to the bottom end of the suspension rod through bolts and nuts.

[0014] Furthermore, both ends of the clamping groove are arranged through the side wall of the clamping block.

[0015] Furthermore, a rubber pad is provided on the inner wall above the clamping groove.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a hanging plate, a hanging rod and a clamping block, and rotatably connects the two ends of the hanging rod to the hanging plate and the clamping block respectively, so that the clamping block can be used to clamp central axis seats of different specifications, and the stability of the hanging is guaranteed relative to the magnetic hanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the central axle seat hanger in the embodiment of the utility model;

[0019] Among them, 1. lifting plate; 2. lifting ring; 3. lifting rod; 4. clamping block; 5. upper connecting fork; 6. lower connecting fork; 7. clamping groove; 8. middle axis seat. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] A typical implementation of the present utility model is as follows Figure 1 As shown, a central axis seat hoist of an excavator boom includes a lifting plate 1, a lifting ring 2 is fixedly arranged on the top of the lifting plate 1, and the lifting ring 2 is used to connect the crane hook to realize lifting operations, a plurality of lifting rods 3 are rotatably connected to the outer wall of the lifting plate 1, and the lifting rods 3 are arc-shaped rods, and the plurality of lifting rods 3 are combined into a truncated cone structure that is narrow at the top and wide at the bottom, and the end of the lifting rod 3 away from the lifting plate 1 is rotatably connected with a clamping block 4, and the plurality of clamping blocks 4 are used to clamp the central axis seat 8, and the plurality of lifting rods 3 are combined into a truncated cone structure that is narrow at the top and wide at the bottom to accommodate central axis seats 8 of different specifications.

[0022] Specifically, the suspension rod 3 is provided with three, and three upper connecting forks 5 are fixed on the side walls of the suspension plate 1. A first through hole is opened on the side walls on both sides of the upper connecting fork 5, and a lower connecting fork 6 is set at one end of the clamping block 4. The upper connecting fork 5 and the lower connecting fork 6 are both U-shaped structures, and second through holes are opened on the side walls on both sides of the lower connecting fork 6. The top of the suspension rod 3 is provided with a first axial hole, and the bottom of the suspension rod 3 is provided with a second axial hole. The upper connecting fork 5 is rotatably connected to the top of the suspension rod 3 through bolts and nuts, and the top of the suspension rod 3 is placed between the two side walls of the upper connecting fork 5, one end of the bolt passes through the two second through holes and the first axial hole at one time, and is tightened by the nut, thereby realizing the rotational connection between the top of the suspension rod 3 and the suspension plate 1, and the lower connecting fork 6 is rotatably connected to the bottom end of the suspension rod 3 through bolts and nuts, and the bottom end of the suspension rod 3 is placed between the two side walls of the lower connecting fork 6, one end of the bolt passes through the two second through holes and the first axial hole at one time, and is tightened by the nut, thereby realizing the rotational connection between the bottom end of the suspension rod 3 and the clamping block 4.

[0023] The clamping block 4 is provided with a clamping groove 7 at one end away from the lower connecting fork 6, and both ends of the clamping groove 7 are arranged through the side wall of the clamping block 4. When in use, the round pancake-shaped protrusion on the top of the excavator boom center axis seat 8 is embedded in the clamping groove 7, and the excavator boom center axis seat 8 is clamped together by three clamping blocks 4. Since a lever is formed between the bottom end of the suspension rod 3, the clamping block 4 and the center axis seat 8, according to the lever principle, the heavier the center axis seat 8, the tighter the clamping, thereby ensuring the stability of the clamping. At the same time, when the hoisting is in place, the clamping block is no longer subjected to force, so that the sling can be easily removed.

[0024] A rubber pad is arranged on the inner wall above the clamping groove 7 to ensure that the clamping block does not damage the workpiece while clamping the workpiece.

[0025] How it works

[0026] When in use, hang the whole sling on the crane hook through the lifting ring. Adjust the angle and direction of the clamping block so that the round pancake-shaped protrusion on the upper part of the middle shaft seat is evenly embedded in the three clamping seat grooves.

[0027] The hook is lifted, the outside of the clamping block rises, and the inside presses the central axis seat to carry out the lifting operation. Since a lever is formed between the bottom end of the boom, the clamping block and the central axis seat, according to the lever principle, the heavier the central axis seat, the tighter the clamping, thus ensuring the stability of the clamping.

[0028] After hoisting into place, the hook falls, and the inner and outer sides of the clamping block are not subjected to force, and the sling can be removed to complete the hoisting operation.

[0029] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A central axis seat sling for an excavator boom, comprising a sling plate, a plurality of slings are rotatably connected to the outer wall of the sling plate, a clamping block is rotatably connected to one end of the sling away from the sling plate, and a clamping groove is provided at one end of the clamping block away from the sling.

2. The excavator boom center shaft seat hanger according to claim 1, characterized in that: A lifting ring is fixedly arranged on the top of the lifting platform, and the lifting ring is used to connect the crane hook.

3. The excavator boom center shaft seat hanger according to claim 1, characterized in that: The suspension rod is an arc-shaped rod, and a plurality of suspension rods are combined to form a truncated cone-shaped structure which is narrow at the top and wide at the bottom.

4. The excavator boom center shaft seat hanger according to claim 1, characterized in that: A plurality of upper connecting forks are fixed on the side wall of the hanging plate, the upper connecting forks are of U-shaped structure, and first through holes are opened on the side walls on both sides of the upper connecting forks.

5. The excavator boom center axle seat hanger as claimed in claim 4, characterized in that: A lower connecting fork is arranged at one end of the clamping block away from the clamping groove. The lower connecting fork is a U-shaped structure. Second through holes are opened on the side walls on both sides of the lower connecting fork.

6. The excavator boom center axle seat hanger according to claim 5, characterized in that: The top end of the suspension rod is provided with a first axial hole, and the bottom end of the suspension rod is provided with a second axial hole.

7. The excavator boom center axle seat hanger according to claim 6, characterized in that: The top end of the suspension rod is placed between the two side walls of the upper connecting fork, and the bottom end of the suspension rod is placed between the two side walls of the lower connecting fork.

8. The excavator boom center axle seat hanger according to claim 7, characterized in that: The upper connecting fork is rotatably connected to the top end of the suspension rod through bolts and nuts, and the lower connecting fork is rotatably connected to the bottom end of the suspension rod through bolts and nuts.

9. The excavator boom center axle seat hanger according to claim 1, characterized in that: Both ends of the clamping groove are arranged through the side wall of the clamping block.

10. The excavator boom center axle seat hanger according to claim 1, characterized in that: A rubber pad is arranged on the inner wall above the clamping groove.

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