Quick-change leakage screen bucket device of belt wheel excavator

Abstract

The utility model relates to the technical field of excavators, in particular to a quick-change leakage screen bucket device of a belt wheel excavator, which comprises a bucket. Connecting parts are fixed to the top and the rear end face of the excavator bucket. The two ends of the double-end lead screw penetrate through the sliding blocks and are in sliding connection with the sliding blocks. Fixing holes are formed in the tops of the rotating rods, and the bottom ends of the connecting bolts are inserted into the fixing holes; the sliding blocks on the two sides can synchronously and oppositely move by rotating the double-end lead screw, the sliding blocks drive the two fixing shafts to synchronously and oppositely move, and then the fixing shafts can penetrate through lug holes in the tail end of the excavator arm. By means of the design, the installation convenience of the excavator bucket is improved, and the installation efficiency of the excavator bucket is improved; according to the excavator bucket, the rotating rod can be limited by inserting the tail end of the connecting bolt into the fixing hole, the situation that the rotating rod rotates due to the fact that the rotating rod is collided by foreign objects after the excavator bucket is installed is avoided, then the situation that the double-end lead screw is rotated by mistake is avoided, and the installation stability and the use safety of the excavator bucket are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to a quick-change screen bucket device for a leather wheel excavator. Background Art

[0002] Wheel excavators, also known as tire excavators, use tires as their running gear, giving them excellent maneuverability and transferability. They can travel freely on sites that don't require dedicated roads, making them suitable for a variety of applications, including urban construction, road construction, and mining. A screening bucket (also known as a sieve bucket or screening bucket) is an excavator attachment used to screen and separate materials during the excavation process. Currently, a screening bucket is typically fixed to the end of the excavator's arm using bolts or other structures.

[0003] The utility model patent with authorization announcement number CN215977433U discloses a bucket that is easy to replace. The bucket that is easy to replace includes a bucket body, the top of the bucket body is tightly welded with two pairs of lugs, the lugs are provided with pin holes, the pin holes are inserted in the pin holes, and an eccentric block is integrally formed at the tail position of the pin shaft, and a plug-in mechanism is provided at the outer end position of the lug, and the plug-in mechanism includes a sleeve tightly welded to the bucket body, a threaded rod located in the sleeve and passing through the eccentric block, and a rocker installed at the tail end of the threaded rod, a cover plate is fixed by bolts on the outer end surface of the sleeve, a threaded hole is provided at the outer edge of the eccentric block, the threaded rod passes through the threaded hole and is threadedly connected to the threaded hole, and an insertion rod is integrally formed at the periphery of the rocker, the insertion rod passes through the cover plate and is inserted into the tail end of the threaded rod. The bucket which is easy to replace has a pin shaft and a plug-in / pull-out mechanism arranged on the outside of the lug, so that the rocker on the plug-in / pull-out mechanism can be rotated to drive the pin shaft to be plugged or pulled out of the lug through the threaded rod, thereby achieving the purpose of facilitating the installation and removal of the bucket body on the excavator arm and making the bucket body easy to replace.

[0004] Although the bucket that is easy to replace has the advantage of being easy to replace, the device still has the following problems in actual use: Specifically, on the one hand, the device is disassembled and assembled through a rocker, but the rocker structure does not have a limiting structure. During use, if the rocker is hit by foreign objects, it is very easy to be rotated and cause connection failure, which affects the installation stability of the bucket. On the other hand, when installing the bucket, the device needs to rotate multiple threaded rods separately for fixing. This operation is relatively inconvenient and affects the installation efficiency of the bucket. In view of this, we propose a quick-change screen bucket device for a leather wheel excavator. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a quick-change screen bucket device for a leather wheel excavator.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] The quick-change screen bucket device of the wheel excavator comprises a bucket, a plurality of screen slots are provided on the inner wall of the opening of the bucket, and a plurality of tooth blocks are fixed on the front end of the bucket;

[0008] The top and rear end faces of the bucket are both fixed with connecting parts, which include a mounting seat fixed to the outer wall of the bucket, with protrusions at both ends of the top of the mounting seat, a connecting cavity at the center of the bottom of the mounting seat, and cavities at both ends of the connecting cavity; a hollow protective cover is fixed to the front end of the mounting seat; a fixing block is fixed to the front end face of the protective cover, and a connecting bolt is threadedly connected to the fixing block;

[0009] A double-ended screw is rotatably installed in the connecting cavity, and both ends of the double-ended screw penetrate the cavity; sliders are slidably installed in the cavity, and fixed shafts are fixed to two opposite ends of the two sliders, and two opposite ends of the two fixed shafts pass through the protrusions; both ends of the double-ended screw pass through the sliders and are slidably connected to the sliders;

[0010] The front end of the double-headed screw is inserted into the protective cover and is coaxially keyed to a sub-gear. A main gear is meshed with the upper part of the sub-gear. A connecting shaft is coaxially fixed to the center of the main gear. The connecting shaft passes through the outer wall of the protective cover and is fixed to a rotating rod. A fixing hole is opened on the top of the rotating rod, and the bottom end of the connecting bolt is inserted into the fixing hole.

[0011] A fixing seat is fixed at the top center of the mounting seat. A connecting hole is opened on the fixing seat, and the ends of the fixing shafts are plugged into and matched with the connecting holes.

[0012] Furthermore, two strip grooves are provided on one side wall of the fixing seat, a limit frame is inserted between the two strip grooves, a fixing bolt is passed through the center of the limit frame, and the fixing bolt is threadedly connected to the fixing seat; a card slot is provided on the outer wall of the fixed shaft, and the end of the limit frame is engaged with the card slot.

[0013] Furthermore, the cross-section of the limiting frame is U-shaped, and the limiting frame is made of stainless steel.

[0014] Furthermore, guide rails are fixed to both side walls of the cavity, and guide grooves slidably connected to the guide rails are formed on both side walls of the slider.

[0015] Furthermore, the mounting seat and the protrusion are an integrally formed structure, and both the mounting seat and the protrusion are tightly welded to the outer wall of the bucket.

[0016] Furthermore, the auxiliary gear and the main gear are both rotatably mounted in the protective cover, and the transmission ratio between the auxiliary gear and the main gear is 2:1.

[0017] Furthermore, the cross-section of the rotating rod is rectangular, and the rotating rod is fixedly connected to the connecting shaft by bolts.

[0018] Furthermore, the size of the slider is adapted to the size of the cavity, and the slider is fixedly connected to the fixed shaft by bolts.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Through the provided connection part: When installing the bucket, rotating the double-ended screw can make the sliders on both sides move synchronously relative to each other. The sliders drive the two fixed shafts to move synchronously relative to each other, so that the fixed shafts can pass through the ear holes at the end of the excavator arm. This design improves the convenience and efficiency of bucket installation.

[0021] 2. By inserting the end of the connecting bolt into the fixing hole, the rotating rod can be limited, preventing the rotating rod from rotating due to being hit by foreign objects after the bucket is installed. This also prevents the double-headed screw from being rotated by mistake, ensuring the installation stability and safety of the bucket.

[0022] 3. By setting the secondary gear and main gear at the end of the double-ended screw, when the main gear rotates one circle, the secondary gear can drive the double-ended screw to rotate two circles. This design improves the convenience of rotating the double-ended screw, thereby improving the efficiency of bucket installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the connecting portion of the present invention;

[0025] Figure 3 This is a structural cross-sectional view of the connecting portion of the present invention;

[0026] Figure 4 This is a structural cross-sectional view of the mounting seat in the present utility model;

[0027] Figure 5 It is a partial structural diagram of the utility model;

[0028] Figure 6 It is a schematic diagram of a partial explosion structure in the utility model.

[0029] In the picture:

[0030] 1. Bucket; 10. Gutter; 11. Tooth block; 12. Mounting seat; 120. Protrusion; 121. Connecting cavity; 122. Cavity; 123. Guide rail; 124. Double-ended screw; 13. Protective cover; 130. Fixed block; 131. Connecting bolt; 14. Slider; 140. Guide groove; 15. Fixed shaft; 150. Slot; 16. Secondary gear; 17. Main gear; 170. Connecting shaft; 18. Rotating rod; 180. Fixing hole; 19. Fixing seat; 190. Connecting hole; 191. Strip groove; 192. Limiting frame; 193. Fixing bolt. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] This embodiment provides a technical solution:

[0033] See also Figures 1-6 As shown, the quick-change filter bucket device of the leather wheel excavator includes a bucket 1, the inner wall of the opening of the bucket 1 is provided with a plurality of leakage grooves 10, and a plurality of tooth blocks 11 are fixed to the front end of the bucket 1; the top and rear end faces of the bucket 1 are fixed with connecting parts, and the connecting part includes a mounting seat 12 fixed to the outer wall of the bucket 1, and protrusions 120 are provided at both ends of the top of the mounting seat 12, and a connecting cavity 121 is provided at the center of the bottom of the mounting seat 12, and a cavity 122 is provided at both ends of the connecting cavity 121; a hollow protective cover 13 is fixed to the front end of the mounting seat 12; a fixing block 130 is fixed to the front end face of the protective cover 13, and a connecting bolt 131 is threadedly connected to the fixing block 130; a double-headed screw rod 124 is rotatably installed in the connecting cavity 121, and both ends of the double-headed screw rod 124 penetrate into the cavity 122; a slider 14 is slidably installed in the cavity 122 , two opposite ends of the two sliders 14 are fixed with fixed shafts 15, and two opposite ends of the two fixed shafts 15 pass through the protrusions 120; both ends of the double-headed screw rod 124 pass through the slider 14 and are slidably connected to the slider 14; the front end of the double-headed screw rod 124 penetrates into the protective cover 13 and is coaxially keyed to the pinion gear 16, and the main gear 17 is meshed with the main gear 17 above the pinion gear 16. A connecting shaft 170 is coaxially fixed at the center of the main gear 17, and the connecting shaft 170 passes through the outer wall of the protective cover 13 and is fixed with a rotating rod 18. A fixing hole 180 is opened at the top of the rotating rod 18, and the bottom end of the connecting bolt 131 is inserted into the fixing hole 180; a fixing seat 19 is fixed at the top center of the mounting seat 12, and a connecting hole 190 is opened on the fixing seat 19, and the ends of the fixed shafts 15 are both plugged into the connecting holes 190.

[0034] Furthermore, a side wall of the fixing seat 19 defines two strip-shaped grooves 191, with a retaining bracket 192 inserted between the two strip-shaped grooves 191. A fixing bolt 193 is threaded through the center of the retaining bracket 192 and is threadedly connected to the fixing seat 19. A retaining groove 150 is defined on the outer wall of the fixing shaft 15, and the distal end of the retaining bracket 192 engages with the retaining groove 150. The retaining bracket 192 engages with the retaining groove 150, effectively securing the fixing shaft 15 within the fixing seat 19 and ensuring secure installation of the fixing shaft 15.

[0035] In this embodiment, the cross-section of the retaining frame 192 is U-shaped and is made of stainless steel. The U-shaped design facilitates simultaneous engagement of the retaining frame 192 with both retaining slots 150, thereby securing both fixed shafts 15. Stainless steel offers advantages of high structural strength and corrosion resistance, ensuring the safety of the retaining frame 192.

[0036] In this embodiment, guide rails 123 are fixed to both side walls of the cavity 122, and guide grooves 140 are formed on both side walls of the slider 14 to be slidably connected to the guide rails 123. The provision of the guide rails 123 and the guide grooves 140 improves the smoothness of the horizontal movement of the slider 14 and ensures the stability of the fixed shaft 15.

[0037] In this embodiment, the mounting base 12 and the protrusion 120 are integrally formed and are tightly welded to the outer wall of the bucket 1. The integrally formed mounting base 12 and protrusion 120 provide greater connection strength, ensuring the structural stability of the mounting base 12 and protrusion 120, while the tight welding ensures the secure installation of the mounting base 12.

[0038] In this embodiment, both the pinion gear 16 and the main gear 17 are rotatably mounted within the protective cover 13, and the transmission ratio between the pinion gear 16 and the main gear 17 is 2:1. The protective cover protects the pinion gear 16 and the main gear 17. When the transmission ratio between the pinion gear 16 and the main gear 17 is 2:1, the pinion gear 16 rotates twice for every one rotation of the main gear 17. This design improves the transmission efficiency of the double-ended lead screw 124.

[0039] In this embodiment, the cross-section of the rotating rod 18 is rectangular, and the rotating rod 18 is fixedly connected to the connecting shaft 170 by bolts. This design improves the convenience of rotating the rotating rod 18 and ensures the stability of the connection.

[0040] In this embodiment, the size of the slider 14 is adapted to the size of the cavity 122, and the slider 14 is fixedly connected to the fixed shaft 15 by bolts. This design facilitates the smooth sliding of the slider 14 in the cavity 122, while the bolt fixing method ensures the installation reliability of the slider 14.

[0041] It should be added that the threads at both ends of the double-ended screw 124 in this embodiment are wound in opposite directions. When the double-ended screw 124 rotates, the sliders 14 on both sides can move synchronously relative to each other horizontally, thereby facilitating the synchronous relative movement of the fixed shafts 15 on both sides, thereby facilitating the simultaneous insertion and cooperation of the fixed shafts 15 on both sides with the ear holes at the end of the excavator arm, thereby improving the installation efficiency of the bucket 1.

[0042] When in use, the user first places the ear hole at the end of the excavator arm in the gap between the protrusion 120 and the fixed seat 19, and then the user rotates the rotating rod 18 on one side, and the rotating rod 18 drives the connecting shaft 170 and the main gear 17 to rotate. Because the main gear 17 is engaged with the sub-gear 16, the sub-gear 16 rotates and drives the double-headed screw 124 to rotate. At this time, the sliders 14 on both sides move synchronously inwardly, and the sliders 14 simultaneously drive the fixed shafts 15 on both sides to move synchronously inwardly. At this time, the fixed shaft 15 passes through the excavator. The ear holes and connecting holes at the end of the machine arm, when the ends of the two fixed shafts 15 abut against each other, the user stops rotating the rod 18, and then the user passes the limit frame 192 through the strip groove 191 and tightens the fixing bolt 193 on the fixing seat 19. The end of the limit frame 192 is inserted into the card slot 150, and the fixed shaft 15 is fixed in the connecting hole 190. Finally, the user tightens the connecting bolt 131, and the end of the connecting bolt 131 is inserted into the fixing hole 180. The rotating rod 18 is fixed, and the installation of the bucket 1 is completed.

[0043] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. The quick-change screen bucket device of the wheel excavator is characterized by: It comprises a bucket (1), wherein the inner wall of the opening of the bucket (1) is provided with a plurality of drain grooves (10), and a front end of the bucket (1) is fixed with a plurality of tooth blocks (11); The top and rear end faces of the bucket (1) are both fixed with connecting parts, and the connecting parts include a mounting seat (12) fixed to the outer wall of the bucket (1), protrusions (120) are provided at both ends of the top of the mounting seat (12), a connecting cavity (121) is provided at the center of the bottom of the mounting seat (12), and cavities (122) are provided at both ends of the connecting cavity (121); a hollow protective cover (13) is fixed to the front end of the mounting seat (12); a fixing block (130) is fixed to the front end face of the protective cover (13), and a connecting bolt (131) is threadedly connected to the fixing block (130); A double-ended screw rod (124) is rotatably installed in the connecting cavity (121), and both ends of the double-ended screw rod (124) penetrate into the cavity (122); a slider (14) is slidably installed in the cavity (122), and two opposite ends of the two sliders (14) are fixed with fixed shafts (15), and two opposite ends of the two fixed shafts (15) pass through the protrusion (120); both ends of the double-ended screw rod (124) pass through the slider (14) and are slidably connected to the slider (14); The front end of the double-ended screw (124) penetrates into the protective cover (13) and is coaxially keyed to a sub-gear (16). A main gear (17) is meshed with the upper portion of the sub-gear (16). A connecting shaft (170) is coaxially fixed to the center of the main gear (17). The connecting shaft (170) passes through the outer wall of the protective cover (13) and is fixed to a rotating rod (18). A fixing hole (180) is provided at the top of the rotating rod (18), and the bottom end of the connecting bolt (131) is inserted into the fixing hole (180). A fixing seat (19) is fixed at the top center of the mounting seat (12), a connecting hole (190) is provided on the fixing seat (19), and the ends of the fixing shafts (15) are plugged into and matched with the connecting holes (190).

2. The quick-change screen bucket device for a wheel excavator according to claim 1, characterized in that: Two strip grooves (191) are formed on one side wall of the fixing seat (19), a limiting frame (192) is inserted between the two strip grooves (191), a fixing bolt (193) is passed through the center of the limiting frame (192), and the fixing bolt (193) is threadedly connected to the fixing seat (19); a clamping groove (150) is formed on the outer wall of the fixing shaft (15), and the end of the limiting frame (192) is clamped and matched with the clamping groove (150).

3. The quick-change screen bucket device for a wheel excavator according to claim 2, characterized in that: The cross-section of the limiting frame (192) is U-shaped, and the limiting frame (192) is made of stainless steel.

4. The quick-change screen bucket device for a wheel excavator according to claim 1, characterized in that: Guide rails (123) are fixed to both side walls of the cavity (122), and guide grooves (140) slidably connected to the guide rails (123) are formed on both side walls of the slider (14).

5. The quick-change screen bucket device for a wheel excavator according to claim 1, characterized in that: The mounting seat (12) and the protrusion (120) are an integrally formed structure, and both the mounting seat (12) and the protrusion (120) are tightly welded to the outer wall of the bucket (1).

6. The quick-change screen bucket device for a wheel excavator according to claim 1, characterized in that: The sub-gear (16) and the main gear (17) are both rotatably mounted in the protective cover (13), and the transmission ratio between the sub-gear (16) and the main gear (17) is 2:

1.

7. The quick-change screen bucket device for a wheel excavator according to claim 1, characterized in that: The cross-section of the rotating rod (18) is rectangular, and the rotating rod (18) is fixedly connected to the connecting shaft (170) via bolts.

8. The quick-change screen bucket device for a wheel excavator according to claim 1, characterized in that: The size of the slider (14) is adapted to the size of the cavity (122), and the slider (14) is fixedly connected to the fixed shaft (15) via bolts.

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