Connecting structure of crushing and screening hopper and excavator mechanical arm

Abstract

The utility model discloses a connecting structure of a crushing and screening bucket and an excavator mechanical arm, which comprises a screening bucket connecting plate and an arm connecting plate, and the screening bucket connecting plate is clamped with the arm connecting plate through a positioning component; the positioning assembly comprises a first positioning column and a second positioning column, and the first positioning column and the second positioning column are arranged on the surface of one side of the screening head connecting plate correspondingly and correspond to the first clamping opening and the second clamping opening correspondingly. The first clamping opening and the second clamping opening are formed in the positions, on one side of the first connecting plate and one side of the second connecting plate, of the vehicle arm connecting plate correspondingly. An auxiliary fixing assembly used for locking and fixing the first positioning column and the second positioning column is arranged in the reinforcing rib plate, the screening hopper connecting plate and the machine arm connecting plate can be positioned, clamped and fixed, the screening hopper connecting plate and the machine arm connecting plate can be fixed conveniently, the overall connecting strength is improved, a large number of bolts are not needed for fixing, and the screening hopper connecting plate and the machine arm connecting plate can be fixed conveniently. The whole connection operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering equipment components, and particularly relates to a connection structure between a crushing and screening bucket and an excavator mechanical arm. Background Art

[0002] During the soil remediation process, the excavated soil needs to be crushed and screened to form small particles to facilitate the next step of thermal phase separation or mixing of reagents. Usually, a crushing and screening bucket is used for screening. The existing ones used for material screening are mostly rotary screening buckets. When such screening buckets are in operation, they are driven by the rotation of the material bucket. While rotating, the material falls inside it, thereby achieving screening of coarse and fine materials. The crushing and screening bucket is usually connected to the excavator arm and used in conjunction with the excavator's hydraulic system.

[0003] At present, the crushing and screening bucket and the excavator arm cannot be positioned during the connection process, which is not convenient for the installation and fixation of bolts. At the same time, a large number of bolts are used for fixation, and the overall connection operation occurs. The overall strength of the connection is not high, which is easy to cause loosening. For this reason, we propose a connection structure between the crushing and screening bucket and the excavator arm. Utility Model Content

[0004] The purpose of the utility model is to provide a connection structure between a crushing and screening bucket and an excavator arm, so as to solve the problem proposed in the above background technology that the current crushing and screening bucket and the excavator arm cannot be positioned during the connection process, which is inconvenient for the installation and fixation of bolts. At the same time, a large number of bolts are used for fixation, and the overall connection operation occurs. The overall strength of the connection is not high, which is easy to cause loosening.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connection structure between a crushing and screening bucket and an excavator mechanical arm, comprising a screening bucket connecting plate and an arm connecting plate, wherein the arm connecting plate is arranged on one side of the screening bucket connecting plate, a first connecting plate and a second connecting plate are arranged on one side of the arm connecting plate, the second connecting plate and the second connecting plate are rotatably connected to the machine arm via a pin shaft, and the screening bucket connecting plate is clamped with the machine arm connecting plate via a positioning assembly;

[0006] The positioning assembly includes a first positioning post and a second positioning post, the first positioning post and the second positioning post are respectively arranged on the surface of one side of the screening head connecting plate, the first positioning post and the second positioning post respectively correspond to the first card interface and the second card interface, and the first card interface and the second card interface are respectively arranged on the machine arm connecting plate on one side of the first connecting plate and the second connecting plate;

[0007] Wherein, a reinforcing rib is provided between the first connecting plate and the second connecting plate, and an auxiliary fixing component for locking and fixing the first positioning column and the second positioning column is provided in the reinforcing rib.

[0008] Preferably, corresponding bolt mounting holes are provided at the corners of the screening bucket connecting plate and the machine arm connecting plate.

[0009] By setting the bolt mounting holes, the screening bucket connecting plate and the machine arm connecting plate can be connected and fixed by tightening the bolts.

[0010] Preferably, the auxiliary fixing assembly includes a first fixing rod and a second fixing rod, the first fixing rod and the second fixing rod are respectively arranged in the reinforcing rib plate, and the reinforcing rib plate is also provided with an adjustment mechanism for simultaneously controlling the opposite movement of the first fixing plate and the second fixing rod.

[0011] Preferably, the adjustment mechanism includes an upper adjusting screw, which is rotatably set in an upper threaded hole, and the upper threaded hole is set on the reinforcing rib. A central wedge is set at the end of the upper adjusting screw, and the central wedge is fitted with a first wedge and a second wedge. The first wedge is set at one end of the first fixed rod, and the second wedge is set at one end of the second fixed rod.

[0012] By simultaneously pushing the first fixing rod and the second fixing rod to move, the first positioning column and the second positioning column can be locked and fixed.

[0013] Preferably, one end of the first fixing rod and the second fixing rod respectively passes through the first connecting plate and the second connecting plate and is connected to the clamping groove, and the clamping groove is respectively arranged on the side surface of the first positioning column and the second positioning column, thereby improving the stability when the first fixing plate and the second fixing plate are clamped.

[0014] Preferably, the first fixing rod and the second fixing rod are respectively arranged in a groove body, and the groove body is arranged on both sides of the reinforcing rib plate to facilitate guiding and moving the first fixing rod and the second fixing rod.

[0015] Preferably, limiting sliders are provided on both sides of the first fixed rod and the second fixed rod, one end of the limiting slider is slidably set in the limiting slide groove, and the limiting slide grooves are symmetrically arranged on both sides of the groove body, which can limit the movement of the first fixed rod and the second fixed rod.

[0016] Preferably, a lower adjusting screw is provided at the bottom of the center wedge block, and the lower adjusting screw is connected to the lower threaded hole, and the lower threaded hole is provided on the reinforcing rib plate. A locking nut is also provided on the lower adjusting screw, which can lock and fix the center wedge block, further improving the positioning of the center wedge block and ensuring the locking force.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) The utility model can position, clamp and fix the screening bucket connecting plate and the machine arm connecting plate, and then align the bolt mounting holes on the screening bucket connecting plate and the machine arm connecting plate, so as to facilitate the fixing of the screening bucket connecting plate and the machine arm connecting plate.

[0019] (2) The utility model can assist in fixing the screening bucket connecting plate and the machine arm connecting plate, thereby increasing the strength of the overall connection. It does not require a large number of bolts for fixing, and the entire connection operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 This is a half-section structural diagram of the connection between the screening bucket connecting plate and the machine arm connecting plate in the present invention;

[0022] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at B in the middle;

[0024] In the figure: 1. Positioning assembly; 2. Second connecting plate; 3. Reinforcing rib; 4. First connecting plate; 5. Machine arm connecting plate; 6. Screening bucket connecting plate; 11. First clamping interface; 12. First positioning column; 13. Second clamping interface; 14. Second positioning column; 301. First fixing rod; 302. Second fixing rod; 303. Knob; 304. Upper adjusting screw; 305. Upper threaded hole; 306. First wedge block; 307. Center wedge block; 308. Lower threaded hole; 309. Lower adjusting screw; 310. Locking nut; 311. Second wedge block; 312. Clamping groove; 313. Limit block; 314. Limit groove. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 2The utility model provides a technical solution: a connection structure between a crushing and screening bucket and an excavator mechanical arm, comprising a screening bucket connecting plate 6 and an arm connecting plate 5, wherein the arm connecting plate 5 is arranged on one side of the screening bucket connecting plate 6, and a first connecting plate 4 and a second connecting plate 2 are arranged on one side of the arm connecting plate 5, wherein the second connecting plate 2 and the second connecting plate 2 are rotatably connected to the machine arm through a pin shaft, and the screening bucket connecting plate 6 is clamped with the machine arm connecting plate 5 through a positioning assembly 1;

[0027] The positioning assembly 1 includes a first positioning column 12 and a second positioning column 14, which are respectively arranged on the surface of one side of the screening head connecting plate. The first positioning column 12 and the second positioning column 14 correspond to the first card interface 11 and the second card interface 13 respectively. The first card interface 11 and the second card interface 13 are respectively arranged on the arm connecting plate 5 on one side of the first connecting plate 4 and the second connecting plate 2.

[0028] When installing the screening bucket connecting plate 6 and the arm connecting plate 5, the first positioning column 12 and the second positioning column 14 are respectively inserted into the first card interface 11 and the second card interface 13, and then the screening bucket connecting plate 6 is pushed. The screening bucket connecting plate 6 drives the first positioning column 12 and the second positioning column 14 to move in the first card interface 11 and the second card interface 13. When the screening bucket connecting plate 6 and the arm connecting plate 5 are fitted together, the positioning and installation of the screening bucket connecting plate 6 and the arm connecting plate 5 are completed.

[0029] Furthermore, corresponding bolt mounting holes are provided at the corners of the screening bucket connecting plate 6 and the arm connecting plate 5. After the screening bucket connecting plate 6 and the arm connecting plate 5 are positioned and installed, the screening bucket connecting plate 6 and the arm connecting plate 5 can be connected and fixed by tightening the bolts through the setting of the bolt mounting holes.

[0030] As a specific embodiment of this application, please refer to Figure 2-Figure 4A reinforcing rib 3 is provided between the first connecting plate 4 and the second connecting plate 2, and an auxiliary fixing assembly is provided in the reinforcing rib 3. The auxiliary fixing assembly includes a first fixing rod 301 and a second fixing rod 302. The first fixing rod 301 and the second fixing rod 302 are respectively provided in the reinforcing rib 3. An adjusting mechanism for simultaneously controlling the opposite movement of the first fixing plate and the second fixing rod 302 is also provided in the reinforcing rib 3. The adjusting mechanism includes an upper adjusting screw 304. The upper adjusting screw 304 is rotatably provided in the upper threaded hole 305, and the upper adjusting screw A knob 303 is also provided on the rod 304. By setting the knob 303, the rotation direction of the upper adjusting screw 304 can be controlled. The upper threaded hole 305 is provided on the reinforcing rib 3. A central wedge 307 is provided at the end of the upper adjusting screw 304. The central wedge 307 is fitted with the first wedge 306 and the second wedge 311. The first wedge 306 is provided at one end of the first fixing rod 301, and the second wedge 311 is provided at one end of the second fixing rod 302, which can lock and fix the first positioning column 12 and the second positioning column 14.

[0031] When the screening bucket connecting plate 6 and the arm connecting plate 5 are assembled, turn the knob 303, and the knob 303 drives the upper adjusting screw 304 to rotate and move in the upper threaded hole 305, and the upper adjusting screw 304 drives the center wedge 307 to rotate and move downward, and the center wedge 307 moves downward and drives the first wedge 306 and the second wedge 311 to move in opposite directions, and the movement of the first wedge 306 drives the first fixing rod 301 to move, and the movement of the second wedge 311 drives the second fixing rod 302 to move, and the first fixing rod 301 and the second fixing rod 302 are respectively clamped in the first positioning column 12 and the second positioning column 14, thereby improving the overall mechanical strength.

[0032] Furthermore, one end of the first fixing rod 301 and the second fixing rod 302 respectively pass through the first connecting plate 4 and the second connecting plate 2, and are connected to the clamping groove 312. The clamping groove 312 is respectively arranged on the side surface of the first positioning column 12 and the second positioning column 14, thereby improving the stability when the first fixing plate and the second fixing plate are clamped.

[0033] Furthermore, the first fixing rod 301 and the second fixing rod 302 are respectively arranged in the groove body, and the groove body is arranged on both sides of the reinforcing rib 3. Limiting sliders 313 are arranged on both sides of the first fixing rod 301 and the second fixing rod 302. One end of the limiting slider 313 is slidably set in the limiting slide groove 314, and the limiting slide groove 314 is symmetrically arranged on both sides of the groove body. The movement of the first fixing rod 301 and the second fixing rod 302 drives the limiting slider 313 to move in the limiting slide groove 314, which can limit the movement of the first fixing rod 301 and the second fixing rod 302.

[0034] Furthermore, a lower adjusting screw 309 is provided at the bottom of the center wedge block 307, and the lower adjusting screw 309 is connected to the lower threaded hole 308. The lower threaded hole 308 is provided on the reinforcing rib 3, and a locking nut 310 is also provided on the lower adjusting screw 309. When the center wedge block 307 rotates and moves downward, it drives the lower adjusting screw 309 to rotate and move downward, so that the lower adjusting screw 309 is connected to the lower threaded hole 308, and then the lower adjusting screw 309 is locked and fixed by the locking nut 310, which can lock and fix the center wedge block 307, further improve the positioning of the center wedge block 307, and ensure the locking force.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The connection structure between the crushing and screening bucket and the excavator mechanical arm is characterized by: The invention comprises a screening bucket connecting plate (6) and a machine arm connecting plate (5), wherein the machine arm connecting plate (5) is arranged on one side of the screening bucket connecting plate (6), a first connecting plate (4) and a second connecting plate (2) are arranged on one side of the machine arm connecting plate (5), the second connecting plate (2) and the second connecting plate (2) are rotatably connected to the machine arm via a pin shaft, and the screening bucket connecting plate (6) is clamped with the machine arm connecting plate (5) via a positioning assembly (1); The positioning assembly (1) comprises a first positioning column (12) and a second positioning column (14), the first positioning column (12) and the second positioning column (14) are respectively arranged on a surface of one side of the screening head connecting plate, the first positioning column (12) and the second positioning column (14) correspond to the first card interface (11) and the second card interface (13), respectively, and the first card interface (11) and the second card interface (13) are respectively arranged on the machine arm connecting plate (5) on one side of the first connecting plate (4) and the second connecting plate (2); A reinforcing rib (3) is provided between the first connecting plate (4) and the second connecting plate (2), and an auxiliary fixing component for locking and fixing the first positioning column (12) and the second positioning column (14) is provided in the reinforcing rib (3).

2. The connecting structure between the crushing and screening bucket and the excavator mechanical arm according to claim 1, characterized in that: Corresponding bolt mounting holes are provided at the corners of the screening bucket connecting plate (6) and the machine arm connecting plate (5).

3. The connection structure between the crushing and screening bucket and the excavator mechanical arm according to claim 1, characterized in that: The auxiliary fixing assembly comprises a first fixing rod (301) and a second fixing rod (302), wherein the first fixing rod (301) and the second fixing rod (302) are respectively arranged in the reinforcing rib plate (3), and an adjustment mechanism for simultaneously controlling the opposite movement of the first fixing plate and the second fixing rod (302) is also arranged in the reinforcing rib plate (3).

4. The connection structure between the crushing and screening bucket and the excavator mechanical arm according to claim 3, characterized in that: The adjustment mechanism includes an upper adjustment screw (304), the upper adjustment screw (304) is rotatably arranged in an upper threaded hole (305), the upper threaded hole (305) is arranged on the reinforcing rib (3), a central wedge (307) is arranged at the end of the upper adjustment screw (304), the central wedge (307) is fitted with a first wedge (306) and a second wedge (311), the first wedge (306) is arranged at one end of the first fixing rod (301), and the second wedge (311) is arranged at one end of the second fixing rod (302).

5. The connection structure between the crushing and screening bucket and the excavator mechanical arm according to claim 4, characterized in that: One end of the first fixing rod (301) and the second fixing rod (302) respectively passes through the first connecting plate (4) and the second connecting plate (2), and is connected to the clamping groove (312). The clamping groove (312) is respectively provided on the side surface of the first positioning column (12) and the second positioning column (14).

6. The connection structure between the crushing and screening bucket and the excavator mechanical arm according to claim 5, characterized in that: The first fixing rod (301) and the second fixing rod (302) are respectively arranged in a slot body, and the slot body is arranged on both sides of the reinforcing rib plate (3).

7. The connection structure between the crushing and screening bucket and the excavator mechanical arm according to claim 6, characterized in that: Limiting sliders (313) are provided on both sides of the first fixing rod (301) and the second fixing rod (302), one end of the limiting slider (313) is slidably arranged in a limiting sliding groove (314), and the limiting sliding grooves (314) are symmetrically arranged on both sides of the groove body.

8. The connection structure between the crushing and screening bucket and the excavator arm according to claim 4, characterized in that: A lower adjusting screw (309) is provided at the bottom of the central wedge (307), and the lower adjusting screw (309) is connected to a lower threaded hole (308). The lower threaded hole (308) is provided on the reinforcing rib (3), and a locking nut (310) is also provided on the lower adjusting screw (309).

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