Quick-change leakage screen bucket structure of belt wheel excavator

Abstract

The utility model relates to the technical field of sieve buckets, in particular to a quick-change sieve bucket structure of a belt wheel excavator, which comprises a bucket rod, the bucket rod is rotatably connected with a connecting rod through two rockers, quick-change connecting pieces are arranged at the right end of the connecting rod and the right end of the bucket rod, each quick-change connecting piece comprises a rectangular block, and a connecting rod is arranged on the left side of each rectangular block. And the two quick-change connecting pieces are jointly connected with a sieve bucket. According to the quick-change leakage sieve bucket structure of the belt wheel excavator, when a leakage sieve bucket is disassembled, a worker rotates hand wheels on two quick-change connecting pieces, the hand wheels drive a rotating shaft to rotate, the rotating shaft drives a worm gear to rotate, the worm gear drives a bidirectional lead screw to rotate, and the bidirectional lead screw drives two rectangular moving blocks to move relatively; the two circular connecting blocks are moved out of the two circular holes a respectively and moved out of the two circular holes b respectively, so that connection between the two quick-change connecting pieces and the leakage sieve bucket is removed, and compared with traditional pin shaft connection, the connecting structure can quickly complete disassembly and assembly of the leakage sieve bucket.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sieve leakage excavator bucket, concretely is quick change sieve leakage excavator bucket structure of skin wheel excavator. BACKGROUND

[0002] Skin wheel excavator refers to the wheel excavator, and the excavator is indispensable excavating tool in civil engineering, and the skin wheel excavator is equipped with excavator bucket, when needing to shovel some specific material, the soil powder or fine particle mixed around the material needs to be screened, and the conventional excavator bucket needs to be replaced by sieve leakage excavator bucket.

[0003] The patent with the publication number CN207211237U discloses a novel excavator sieve leakage bucket, including two side panels, the two side panels are connected by a plurality of horizontal round steels, the upper end between the two side panels is connected with a cover plate, the cover plate is provided with a bucket ear mounting plate, the bucket ear mounting plate is provided with a bucket ear fixed with the excavator, the lower end between the two side panels is connected with a tooth seat plate, the tooth seat plate and the cover plate are connected with longitudinal round steels crossing the horizontal round steels, the longitudinal round steels and the horizontal round steels cross to form a plurality of grids, the tooth seat plate is provided with a tooth seat, the tooth seat is provided with a bucket tooth fixed with the tooth seat, the two side panels are both provided with a side cutter plate, and the lower end of each side cutter plate is provided with a cutter corner plate fixed with a screw, the utility model is connected with the excavator through the bucket ear, is convenient and fast, can effectively utilize the power of the backhoe excavator, and reduces power waste, and has the characteristics of simple structure, easy processing and reliability.

[0004] The above prior art still needs to use bucket rod pin shaft and connecting rod pin shaft to be connected with the bucket rod and connecting rod when being replaced with the conventional excavator bucket, and the bucket rod pin shaft and connecting rod pin shaft are difficult to disassemble and assemble, for example, the bucket rod pin shaft is usually composed of several parts, including a main pin connecting the excavator bucket and the bucket rod, and a plurality of auxiliary safety pins and fixing pins, when disassembling the conventional excavator bucket, the pins need to be first removed, and a large force is generally needed to remove the pins, and a stripping hammer or the power of the excavator itself may be needed to open the safety pin, and then the two ends of the pin shaft are beaten or pulled to remove the main pin, when installing the sieve leakage bucket, the reverse process of disassembly needs to be performed, therefore, the above prior art is difficult to replace the excavator bucket, and the quick change sieve leakage excavator bucket structure of skin wheel excavator is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing the quick change sieve leakage excavator bucket structure of skin wheel excavator to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The quick-change screen bucket structure of the wheel excavator comprises a bucket rod, the front and rear sides of the bucket rod and the positions close to the right end are rotationally connected with rocker arms, the two rocker arms are commonly rotationally connected with a connecting rod, the right end of the connecting rod and the right end of the bucket rod are provided with quick-change connecting pieces, the quick-change connecting pieces comprise rectangular blocks, the left side of the rectangular block is provided with a connecting rod, the connecting rod on the quick-change connecting piece is used for being welded and fixed with the right end of the connecting rod, and the connecting rod on the other quick-change connecting piece is used for being welded and fixed with the right end of the bucket rod, so that the two quick-change connecting pieces are fixed on the right end of the connecting rod and the right end of the bucket rod respectively.

[0008] The top of the rectangular block and the position close to the right side are provided with a first U-shaped groove, the middle of the left side of the inner wall of the first U-shaped groove is provided with a second U-shaped groove, the bottom of the inner wall of the first U-shaped groove is provided with two first limiting plates which are symmetrically arranged in front and back, the top of the two first limiting plates is commonly connected with a bidirectional screw rod, the two threaded areas of the bidirectional screw rod are threadedly connected with rectangular moving blocks, the rectangular moving blocks are slidably connected in the first U-shaped groove, the opposite sides of the two rectangular moving blocks are provided with circular connecting blocks, and the circular connecting blocks are used for being connected with the screen bucket.

[0009] The middle of the outer wall of the bidirectional screw rod is provided with a worm wheel, the second U-shaped groove is rotationally connected with a worm which is in mesh transmission with the worm wheel, the worm wheel is driven to rotate through the worm, the top end of the worm is provided with a rotating shaft, the top of the rectangular block is detachably connected with a cover plate through bolts, the top of the rectangular moving block is attached to the bottom of the cover plate, the top end of the rotating shaft penetrates through the bottom of the cover plate to the outside, and the two quick-change connecting pieces are commonly connected with the screen bucket.

[0010] Preferably, the middle of the top of the first limiting plate is provided with a first arc-shaped avoiding groove, the bottom of the cover plate is provided with two second limiting plates which are symmetrically arranged in front and back, the middle of the bottom of the second limiting plate is provided with a second arc-shaped avoiding groove, and the bidirectional screw rod is located between the first arc-shaped avoiding groove and the second arc-shaped avoiding groove, so as to limit the bidirectional screw rod.

[0011] Preferably, the outer wall of the bidirectional screw rod and the positions close to the middle are provided with two limiting rings which are symmetrically arranged in front and back, the opposite sides of the two limiting rings are respectively attached to the opposite sides of the two first limiting plates, and the bidirectional screw rod is prevented from moving forward and backward.

[0012] Preferably, the bottom of the inner wall of the second U-shaped groove is provided with a first annular positioning block, the bottom of the cover plate and the position close to the left side are provided with a second annular positioning block, the bottom end of the worm is rotationally connected in the first annular positioning block, and the top end of the worm is rotationally connected in the second annular positioning block, so as to position the worm.

[0013] Preferably, the top end of the rotating shaft is provided with a rectangular connecting block, the outer side of the rectangular connecting block is detachably connected with a hand wheel through bolts, the bottom of the hand wheel is provided with a rectangular sleeve block, the rectangular connecting block is inserted into the rectangular sleeve block, the rotating shaft is driven to rotate through the hand wheel, when the quick-change connecting piece needs to be maintained or repaired, the hand wheel is first disassembled to avoid the hand wheel hindering the cover plate from moving out, and then the cover plate is disassembled.

[0014] Preferably, the top of the screen digging bucket is provided with two bucket ear mounting plates which are symmetrically arranged front and back, a circular hole a is formed in the side of the bucket ear mounting plate and close to the left end, a circular hole b is formed in the side of the bucket ear mounting plate and close to the right end, the circular hole a and the circular hole b are the same, the outer diameter of the circular connecting block is matched with the inner diameter of the circular hole a, when the screen digging bucket is disassembled, the hand wheel of the quick-change connecting piece is rotated, the rotating shaft is driven to rotate by the hand wheel, the worm gear is driven to rotate by the rotating shaft, the bidirectional screw rod is driven to rotate by the worm gear, the two rectangular moving blocks are relatively moved by the bidirectional screw rod, the two circular connecting blocks are moved out of the two circular holes a respectively, similarly, the hand wheel of the other quick-change connecting piece is rotated, the two circular connecting blocks of the quick-change connecting piece are moved out of the two circular holes b respectively, so that the connection between the two quick-change connecting pieces and the screen digging bucket is released, compared with the traditional pin shaft connection, the connection structure can quickly disassemble and assemble the screen digging bucket.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] 1、The quick-change screen digging bucket structure of the leather wheel excavator, when the screen digging bucket is disassembled, the hand wheel of the quick-change connecting piece is rotated, the rotating shaft is driven to rotate by the hand wheel, the worm gear is driven to rotate by the rotating shaft, the bidirectional screw rod is driven to rotate by the worm gear, the two rectangular moving blocks are relatively moved by the bidirectional screw rod, the two circular connecting blocks are moved out of the two circular holes a respectively, similarly, the hand wheel of the other quick-change connecting piece is rotated, the two circular connecting blocks of the quick-change connecting piece are moved out of the two circular holes b respectively, so that the connection between the two quick-change connecting pieces and the screen digging bucket is released, compared with the traditional pin shaft connection, the connection structure can quickly disassemble and assemble the screen digging bucket.

[0017] 2、The quick-change screen digging bucket structure of the leather wheel excavator, the bidirectional screw rod is located between the first arc avoiding groove and the second arc avoiding groove, the bidirectional screw rod is limited, the outer wall of the bidirectional screw rod is provided with two limiting rings, the opposite sides of the two limiting rings are respectively attached to the opposite sides of the two first limiting plates, the bidirectional screw rod can be prevented from moving back and forth.

[0018] 3、The quick-change screen digging bucket structure of the leather wheel excavator, the bottom end of the worm is rotatably connected into the first annular positioning block, the top end of the worm is rotatably connected into the second annular positioning block, the worm is positioned, and the stable connection of the worm and the worm gear is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole first visual angle structure schematic diagram of the utility model;

[0020] Figure 2 It is the whole second visual angle structure schematic diagram of the utility model;

[0021] Figure 3 It is the partial structure schematic diagram of the utility model;

[0022] Figure 4 It is the structure schematic diagram of the sieve bucket of the utility model;

[0023] Figure 5 It is the structure schematic diagram of the quick-change connecting piece of the utility model;

[0024] Figure 6 It is the structure schematic diagram of the rectangular block of the utility model;

[0025] Figure 7 It is the partial structure schematic diagram of the quick-change connecting piece of the utility model;

[0026] Figure 8 It is the structure schematic diagram of the cover plate of the utility model;

[0027] Figure 9 It is the structure schematic diagram of the hand wheel of the utility model.

[0028] In the drawing: 1, bucket rod; 2, rocker; 3, connecting rod; 4, quick-change connecting piece; 40, rectangular block; 400, first U-shaped groove; 401, second U-shaped groove; 41, connecting rod; 42, first limiting plate; 420, first arc-shaped avoiding groove; 43, bidirectional screw rod; 430, worm wheel; 431, limiting ring; 44, first annular positioning block; 45, worm; 450, rotating shaft; 451, rectangular connecting block; 46, rectangular moving block; 47, circular connecting block; 48, cover plate; 480, second limiting plate; 4800, second arc-shaped avoiding groove; 481, second annular positioning block; 49, hand wheel; 490, rectangular sleeve block; 5, sieve bucket; 50, bucket ear mounting plate; 500, round hole a; 501, round hole b. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] Please refer to Figures 1-9 The utility model provides a technical scheme:

[0032] The quick-change screen leakage excavator structure of the wheel excavator, including the bucket rod 1, the two sides of the bucket rod 1 and close to the right end position are rotatably connected with the rocker 2, two rockers 2 are rotatably connected with the connecting rod 3, the right end of the connecting rod 3 and the right end of the bucket rod 1 are equipped with quick-change connecting pieces 4, the quick-change connecting piece 4 includes rectangular block 40, the left side of rectangular block 40 is equipped with connecting rod 41, the connecting rod 41 on the quick-change connecting piece 4 is used for welding fixed with the right end of the connecting rod 3, and the connecting rod 41 on the other quick-change connecting piece 4 is used for welding fixed with the right end of the bucket rod 1, so that two quick-change connecting pieces 4 are fixed on the right end of the connecting rod 3 and the right end of the bucket rod 1 respectively;

[0033] The top of rectangular block 40 and close to the right side position are equipped with first U-shaped recess 400, the middle part of the left side of the inner wall of first U-shaped recess 400 is equipped with second U-shaped recess 401, the bottom of the inner wall of first U-shaped recess 400 is equipped with two first limit plates 42 that are symmetrically arranged in front and back, the top of two first limit plates 42 is commonly connected with bidirectional screw rod 43, the two screw threads of bidirectional screw rod 43 are all threadedly connected with rectangular moving block 46, rectangular moving block 46 is slidably connected in first U-shaped recess 400, the opposite sides of two rectangular moving blocks 46 are all equipped with circular connecting block 47, and circular connecting block 47 is used for being connected with screen leakage excavator 5;

[0034] The middle part of the outer wall of bidirectional screw rod 43 is equipped with worm wheel 430, the inner side of second U-shaped recess 401 is rotatably connected with worm gear 45 that is engaged with transmission with worm wheel 430, worm gear 45 is driven to rotate worm wheel 430, the top of worm gear 45 is equipped with rotating shaft 450, the top of rectangular block 40 is detachably connected with cover plate 48 through bolt, the top of rectangular moving block 46 and the bottom of cover plate 48 are fitted, the top of rotating shaft 450 penetrates through the bottom of cover plate 48 to the outside, and two quick-change connecting pieces 4 are commonly connected with screen leakage excavator 5.

[0035] In the embodiment, the middle part of the top of the first limiting plate 42 is provided with a first arc-shaped avoiding slot 420, the bottom of the cover plate 48 is provided with two second limiting plates 480 which are symmetrically arranged front and back, the middle part of the bottom of the second limiting plate 480 is provided with a second arc-shaped avoiding slot 4800, and the bidirectional screw rod 43 is located between the first arc-shaped avoiding slot 420 and the second arc-shaped avoiding slot 4800, thereby limiting the bidirectional screw rod 43.

[0036] Specifically, the outer wall of the bidirectional screw rod 43 and close to the middle part is provided with two limiting rings 431 which are symmetrically arranged front and back, and the opposite sides of the two limiting rings 431 are respectively attached to the opposite sides of the two first limiting plates 42, thereby avoiding the bidirectional screw rod 43 from moving front and back.

[0037] Further, the bottom of the inner wall of the second U-shaped groove 401 is provided with a first annular positioning block 44, the bottom of the cover plate 48 and close to the left side is provided with a second annular positioning block 481, the bottom end of the worm 45 is rotationally connected in the first annular positioning block 44, and the top end of the worm 45 is rotationally connected in the second annular positioning block 481, thereby positioning the worm 45.

[0038] Further, the top end of the rotating shaft 450 is provided with a rectangular connecting block 451, the outer side of the rectangular connecting block 451 is detachably connected with a hand wheel 49 through bolts, the bottom of the hand wheel 49 is provided with a rectangular sleeve block 490, the rectangular connecting block 451 is inserted into the rectangular sleeve block 490, the rotating shaft 450 is driven to rotate through the hand wheel 49, when the quick-change connecting piece 4 needs to be maintained or repaired, the hand wheel 49 is first disassembled to avoid the hand wheel 49 from hindering the cover plate 48 from moving out, and then the cover plate 48 is disassembled.

[0039] Further, the top of the screen bucket 5 is provided with two bucket ear mounting plates 50 which are symmetrically arranged front and back, the side of the bucket ear mounting plate 50 and close to the left end is provided with a circular hole a500, the side of the bucket ear mounting plate 50 and close to the right end is provided with a circular hole b501, the circular hole a500 and the circular hole b501 are the same, the outer diameter of the circular connecting block 47 is matched with the inner diameter of the circular hole a500, when the screen bucket 5 is disassembled, the staff rotates the hand wheel 49 on the quick-change connecting piece 4, the hand wheel 49 drives the rotating shaft 450 to rotate, the rotating shaft 450 drives the worm wheel 430 to rotate, the worm wheel 430 drives the bidirectional screw rod 43 to rotate, and the bidirectional screw rod 43 drives the two rectangular moving blocks 46 to relatively move, so that the two circular connecting blocks 47 are respectively moved out of the two circular holes a500, and in the same way, the staff rotates the hand wheel 49 on the other quick-change connecting piece 4, so that the two circular connecting blocks 47 on the quick-change connecting piece 4 are respectively moved out of the two circular holes b501, thereby disconnecting the two quick-change connecting pieces 4 and the screen bucket 5, and compared with the traditional pin shaft connection, the connection structure can quickly disassemble and assemble the screen bucket 5.

[0040] The quick-change screenless bucket structure of the skin wheel excavator of the embodiment is used in the process of disassembling the screenless bucket 5, a worker rotates the hand wheel 49 on the quick-change connecting piece 4, the hand wheel 49 drives the rotating shaft 450 to rotate, the rotating shaft 450 drives the worm wheel 430 to rotate, the worm wheel 430 drives the bidirectional screw rod 43 to rotate, the bidirectional screw rod 43 drives the two rectangular moving blocks 46 to move relatively, and the two circular connecting blocks 47 are respectively moved out of the two round holes a 500, and similarly, the worker rotates the hand wheel 49 on the other quick-change connecting piece 4, and the two circular connecting blocks 47 on the quick-change connecting piece 4 are respectively moved out of the two round holes b 501, so that the connection between the two quick-change connecting pieces 4 and the screenless bucket 5 is released, and compared with the traditional pin shaft connection, the quick-change connecting piece 4 can quickly complete the disassembly and assembly of the screenless bucket 5.

[0041] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A quick-change screen excavator structure of a skin wheel excavator, comprising a bucket rod (1), a rocker (2) is rotatably connected to the front and rear sides of the bucket rod (1) and close to the right end, two rocker (2) are rotatably connected with a connecting rod (3), characterized in that: The right end of the connecting rod (3) and the right end of the arm (1) are provided with quick-change connectors (4), the quick-change connector (4) comprises a rectangular block (40), the left side of the rectangular block (40) is provided with a connecting rod (41), the top of the rectangular block (40) and the position close to the right side are provided with a first U-shaped groove (400), the middle part of the left side of the inner wall of the first U-shaped groove (400) is provided with a second U-shaped groove (401), the bottom of the inner wall of the first U-shaped groove (400) is provided with two first limiting plates (42) which are arranged in front and back symmetry, the top of the two first limiting plates (42) is commonly connected with a bidirectional screw rod (43), the two threaded areas of the bidirectional screw rod (43) are threadedly connected with a rectangular moving block (46), the opposite sides of the two rectangular moving blocks (46) are provided with a circular connecting block (47), the middle part of the outer wall of the bidirectional screw rod (43) is provided with a worm wheel (430), the second U-shaped groove (401) is rotationally connected with a worm (45) which is in meshing transmission with the worm wheel (430), the top end of the worm (45) is provided with a rotating shaft (450), the top of the rotating shaft (450) penetrates through the bottom of the cover plate (48) to the outside, and the two quick-change connectors (4) are commonly connected with a sieve bucket (5).

2. The quick-change missing-sieve bucket structure of a spoked excavator according to claim 1, characterized in that: The middle part of the top of the first limiting plate (42) is provided with a first arc-shaped avoiding groove (420), the bottom of the cover plate (48) is provided with two second limiting plates (480) which are arranged in front and back symmetry, the middle part of the bottom of the second limiting plate (480) is provided with a second arc-shaped avoiding groove (4800), and the bidirectional screw rod (43) is located between the first arc-shaped avoiding groove (420) and the second arc-shaped avoiding groove (4800).

3. The quick-change missing-sieve bucket structure of a paddle wheel excavator according to claim 1, characterized in that: The outer wall of the bidirectional screw rod (43) and the positions close to the middle parts are provided with two limiting rings (431) which are arranged in front and back symmetry, and the opposite sides of the two limiting rings (431) are respectively matched with the opposite sides of the two first limiting plates (42).

4. The quick-change missing-sieve bucket structure of a paddle wheel excavator according to claim 1, characterized in that: The bottom of the inner wall of the second U-shaped groove (401) is provided with a first annular positioning block (44), the bottom of the cover plate (48) and the position close to the left side are provided with a second annular positioning block (481), the bottom end of the worm (45) is rotationally connected in the first annular positioning block (44), and the top end of the worm (45) is rotationally connected in the second annular positioning block (481).

5. The quick-change missing-sieve bucket structure of a paddle wheel excavator according to claim 1, characterized in that: The top end of the rotating shaft (450) is provided with a rectangular connecting block (451), the outer side of the rectangular connecting block (451) is detachably connected with a hand wheel (49) through bolts, the bottom of the hand wheel (49) is provided with a rectangular sleeve block (490), and the rectangular connecting block (451) is inserted into the rectangular sleeve block (490).

6. The quick-change missing-sieve bucket structure of a paddle wheel excavator according to claim 1, characterized in that: The top of the screen leakage excavator (5) is provided with two front and rear symmetrical bucket ear mounting plates (50), the side of the bucket ear mounting plate (50) and the position close to the left end are provided with a round hole a (500), the side of the bucket ear mounting plate (50) and the position close to the right end are provided with a round hole b (501), the round hole a (500) and the round hole b (501) are same, the outer diameter of the round connecting block (47) is matched with the inner diameter of the round hole a (500).

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