High-strength wear-resistant alloy claw bucket

Abstract

The utility model discloses a high-strength wear-resistant alloy claw bucket which comprises a claw bucket body, a plurality of claw petal bodies used for taking materials and discharging materials through opening and closing are arranged at the bottom of the claw bucket body in the circumferential direction, the claw petal bodies are made of carbon steel, and each claw petal body comprises an arc-shaped upper claw arm used for being connected with the claw bucket body and a lower claw arm used for being connected with the claw bucket body. A lower claw arm downwards arranged along with the upper claw arm is welded at the bottom of the upper claw arm, and a claw tip made of a wear-resistant alloy material is welded at the bottom of the lower claw arm; leaf plates which are folded towards the center from top to bottom, are used for being in direct contact with materials and are made of a wear-resistant alloy material are arranged on the surface of the inner side wall of the claw petal body; and a first wear-resistant welding rod is arranged on the exposed surface of the lower claw arm in a gridding surfacing manner. The garbage bin is resistant to abrasion and long in service life, maintenance cost is saved, operation time of maintenance personnel in the garbage bin is shortened, and safety risks are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of claw bucket, specifically relates to a high strength wear -resisting alloy claw bucket. BACKGROUND

[0002] The garbage crane is important equipment in the production and operation of garbage incineration power plant, has the function of grabbing garbage and weighing, and at least two garbage cranes are equipped for each company, the garbage crane grab bucket commonly used in the industry at present is a multi-petal grab bucket including a plurality of claw petals, when grabbing material, the claw petals are driven to close in the garbage pile, and the garbage is grabbed into the material space surrounded by the claw petals, when unloading, the claw petals are driven to open, and the garbage is scattered.

[0003] But the existing claw petals are mostly Q345 material steel overall riveting and welding structures, and have the problems of poor wear resistance and large repair welding maintenance, according to statistics, 2 claw petals need to be repaired and welded every 20 days, and the detailed expenses are as follows: material cost: 0.36m*0.5m*2 pieces of 16Mn steel plate, 45.22KG*12YUAN / KG=542.64YUAN; oxygen, acetylene, welding rod and the like about 50YUAN; subtotal 592.64YUAN. Labor cost: 2 people work for 8 hours each time, according to the average wage of maintenance personnel 379.55YUAN / person / day*2=759.09YUAN. The total cost of each maintenance is 592.64YUAN+759.09YUAN=1351.73YUAN. According to 8000 hours of production per year, maintenance is about 17 times per year. The maintenance cost of claw petals of one garbage crane per year is 1351.73YUAN*17=22979.41YUAN. The maintenance cost of claw petals of two garbage cranes per year is 22979.41YUAN*2=45958.82YUAN.

[0004] At the same time, the maintenance working environment is very bad, there are carbon monoxide and hydrogen sulfide gas in the garbage bin, although ventilation is carried out to reduce the concentration of harmful gas, but the safety risk is still high. INVENTION CONTENTS

[0005] The utility model needs to solve the technical problem of providing a high strength wear -resisting alloy claw bucket, which is wear -resisting and has long service life, not only saves the maintenance cost, but also shortens the working time of maintenance personnel in the garbage bin and reduces the safety risk.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is as follows.

[0007] The utility model provides a kind of high-strength wear-resistant alloy claw bucket, including claw bucket body, the bottom of claw bucket body is provided with several claw lobe bodies for taking material and discharging material by opening and closing in circumference, wherein the claw lobe body is carbon steel material, including the upper claw arm for connecting claw bucket body and arc, the bottom of upper claw arm is welded with the lower claw arm arranged in compliance with upper claw arm, the bottom of lower claw arm is welded with the claw tip of wear-resistant alloy material;The inner side wall surface of claw lobe body is provided with the vane by upper to bottom to the center, for direct contact with material and wear-resistant alloy material;The exposed surface of lower claw arm is grid surfacing with first wear-resistant electrode.

[0008] Preferably, the inner side wall surface of the lower claw arm is vertically downward, and the outer side wall surface of the lower claw arm is inclined downward from top to bottom towards the inner side wall.

[0009] Preferably, the inner side wall bottom of the lower claw arm is provided with a stepped groove, and the bottom of the vane is provided with a stepped protrusion matched with the stepped groove, and the bottom end of the stepped protrusion is lower than the bottom end of the lower claw arm.

[0010] Preferably, the top of the claw tip is provided with a groove for penetrating into the bottom of the vane and the bottom of the stepped protrusion.

[0011] Preferably, the wear-resistant alloy material is high manganese steel M13Cr2, and the vane, the lower claw arm and the claw tip are welded by D276 high manganese steel electrode.

[0012] Preferably, the bottom of the upper claw arm is grid surfacing with second wear-resistant electrode on both sides, and the density of the second wear-resistant electrode is smaller than that of the first wear-resistant electrode.

[0013] Preferably, the upper claw arm is provided with a protective rib at the transition part from the top surface to the two side surfaces.

[0014] Thanks to the above technical solutions, the utility model has the following technical progress.

[0015] The utility model discloses a vane and a claw tip, realize with garbage contact surface all wear-resistant alloy, can effectively improve the wear resistance of claw lobe body;At the same time, through the first wear-resistant electrode, the second wear-resistant electrode and the protective rib, the wear resistance of the claw lobe body can be further improved;The service life of the claw lobe body is greatly improved, not only the maintenance cost is saved, but also the working time of maintenance personnel in the garbage bin is shortened, which is beneficial to the health of the workers, reduces the safety risk and the equipment failure rate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a structure schematic drawing.

[0017] Wherein: 1. upper claw arm, 2. lower claw arm, 21. ladder groove, 3. claw tip, 31. groove, 4. leaf plate, 41. ladder protrusion, 5. protective rib, 6. first wear-resistant welding rod, 7. second wear-resistant welding rod. DETAILED DESCRIPTION

[0018] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0019] A high-strength wear-resistant alloy claw bucket combines Figure 1 As shown in the figure, it comprises a claw bucket body and a claw lobe body, wherein the claw lobe body is several, the several claw lobe bodies are arranged along the bottom of the claw bucket body and connected with the bottom of the claw bucket body, and the claw bucket body drives the claw lobe body to open and close to realize material taking and discharging.

[0020] The claw lobe body is made of carbon steel and comprises an upper claw arm 1 and a lower claw arm 2, wherein the upper claw arm 1 is arc-shaped, the top of the upper claw arm 1 is used for connecting the claw bucket body, and the bottom of the upper claw arm 1 is welded and connected with the top of the lower claw arm 2; the lower claw arm 2 is arranged downward in response to the upper claw arm 1, the inner side wall surface of the lower claw arm 2 is arranged vertically downward, and the outer side wall surface of the lower claw arm 2 is arranged obliquely from top to bottom to the inner side wall direction.

[0021] The bottom of the lower claw arm 2 is welded with a claw tip 3, and the claw tip 3 is made of wear-resistant alloy material. The inner side wall surface of the claw lobe body is provided with a leaf plate 4, which is gathered to the center from top to bottom, used for directly contacting with the material, and also made of wear-resistant alloy material.

[0022] Specifically, the inner side wall bottom of the lower claw arm 2 is provided with a ladder groove 21; the widest part of the leaf plate 4 is 850mm, the bottom of the leaf plate 4 is provided with a ladder protrusion 41, the ladder protrusion 41 is matched with the ladder groove 21, and the bottom end of the ladder protrusion 41 is lower than the bottom end of the lower claw arm 2. The top of the claw tip 3 is provided with a groove 31, and the groove 31 is used for penetrating into the bottom of the leaf plate 4 and the bottom of the ladder protrusion 41 thereon. The wear-resistant alloy material is high manganese steel M13Cr2, and the leaf plate 4, the lower claw arm 2 and the claw tip 3 are welded by D276 high manganese steel welding rod, which can effectively avoid the cracking of the weld.

[0023] The exposed surface of the lower claw arm 2 is grid surfacing with a first wear-resistant welding rod 6; the bottom of the upper claw arm 1 is grid surfacing with a second wear-resistant welding rod 7 on both sides, and the density of the second wear-resistant welding rod 7 is less than that of the first wear-resistant welding rod 6, the protective height of the first wear-resistant welding rod 6 and the second wear-resistant welding rod 7 is 900mm, which can effectively prevent the wear of the claw bucket body. At the same time, the top surface of the upper claw arm 1 is provided with a protective rib 5 at the transition part of the two side surfaces, which can further prevent the wear of the upper claw arm 1.

[0024] The utility model discloses a claw arm 1, claw tip 3, leaf plate 4 and the first wear -resisting welding rod 6, second wear -resisting welding rod 7 and the protection rib 5 are set up, realize with the garbage contact surface all is wear -resisting alloy, can effectively improve the wear resistance of claw petal body, and the claw petal body's wear resistance can be further improved through the first wear -resisting welding rod 6, second wear -resisting welding rod 7 and the protection rib 5 of setting up. Compared with the claw petal of frequent repair welding, the utility model does not need to repair and weld within five years, and the tracking measurement result shows that: the average monthly wear and tear is 0.1mm, and the present thickness of the upper claw arm 1 is 20mm, and the wear and tear is 9.6mm after eight years, and there is 10.4mm; The average monthly wear and tear of claw tip 3 is 0.2mm, and the present thickness is 25mm, and the wear and tear is 12mm after four years, and there is 13mm, and it is no problem to replace again. Meanwhile, claw tip 3 is replaced once every five years (15600 yuan every set, 2 sets 31200 yuan), according to five years amortization, 6240 yuan per year, 136638 yuan of a maintenance welder's salary can be saved per year after the transformation, 136638-6240-45958.82=84439.18 yuan, and the total cost saving is 84439.18 yuan per year. Avoid the danger of electric welding operation time in the harsh environment, is favorable to the health of the operating personnel, reduces the security risk, improves the equipment operation rate, simultaneously, claw tip 3 part is more smooth, sharp than the original design, leaf plate 4 is wide, and the garbage crane working efficiency increases, and the garbage truck waiting time is shortened.

Claims

1. A high-strength wear-resistant alloy claw bucket, comprising a claw bucket body, a plurality of claw lobe bodies for taking and discharging materials by opening and closing are arranged on the bottom of the claw bucket body in a circumferential direction, characterized in that: The claw body is made of carbon steel, comprising an upper claw arm (1) connected to the claw body and in an arc shape, a lower claw arm (2) welded to the bottom of the upper claw arm (1) and arranged downward, and a claw tip (3) made of wear-resistant alloy welded to the bottom of the lower claw arm (2); the inner wall surface of the claw body is provided with a leaf plate (4) made of wear-resistant alloy and arranged from top to bottom towards the center for directly contacting with materials; the exposed surface of the lower claw arm (2) is grid surfacing with a first wear-resistant electrode (6).

2. A high strength abrasion resistant alloy bucket according to claim 1 characterised in that: The inner wall surface of the lower claw arm (2) is arranged vertically downward, and the outer wall surface of the lower claw arm (2) is arranged obliquely from top to bottom towards the inner wall surface.

3. A high strength abrasion resistant alloy bucket according to claim 1, characterized in that: The bottom of the inner wall of the lower claw arm (2) is provided with a stepped groove (21), the bottom of the leaf plate (4) is provided with a stepped protrusion (41) matched with the stepped groove (21), and the bottom end of the stepped protrusion (41) is lower than the bottom end of the lower claw arm (2).

4. A high strength abrasion resistant alloy bucket according to claim 3, characterized in that: The top of the claw tip (3) is provided with a groove (31) for penetrating into the bottom of the leaf plate (4) and the bottom of the stepped protrusion (41) thereon.

5. A high strength abrasion resistant alloy bucket according to claim 4, characterized in that: The wear-resistant alloy is high manganese steel M13Cr2, and the leaf plate (4), the lower claw arm (2) and the claw tip (3) are welded by a D276 high manganese steel electrode.

6. A high strength abrasion resistant alloy bucket according to claim 1 wherein: The bottom of the upper claw arm (1) is grid surfacing with a second wear-resistant electrode (7) on both sides, and the density of the second wear-resistant electrode (7) is smaller than that of the first wear-resistant electrode (6).

7. A high strength abrasion resistant alloy bucket according to claim 1 wherein: The top surface of the upper claw arm (1) is provided with a protective rib (5) at the transition part to the two side surfaces.

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