Bucket locking mechanism for loader

Abstract

The present invention discloses a loader hopper locking mechanism, including a loader hopper locking mechanism, including a hopper body, the hopper body is a square funnel structure, the lower end of the hopper body is connected to a square discharge pipe in the center, and the lower end of the discharge pipe is closed, and the outer side of the discharge pipe is vertically airtightly slidably connected to a valve pipe, and the lower end of the valve pipe is closed. The advantage is that the hopper body in the present invention is replaced with a square funnel structure, and when it is necessary to release high-temperature asphalt, the first locking structure and the second locking structure can be unlocked, and the valve pipe can be lowered under the drive of the electric discharge structure to connect the second discharge trough on the valve pipe and the first discharge trough of the discharge pipe, so that the high-temperature asphalt flows out through the discharge pipe and the second discharge pipe that are connected to each other, and there is no need to tilt the hopper body to one side, so as to avoid the situation where the loader is unstable on the ground and the center of gravity shifts during the discharge process and rolls over, thereby improving the safety of the hopper body discharge.

Description

Technical Field

[0001] The invention relates to the technical field of loaders, and in particular to a loader hopper locking mechanism. Background Art

[0002] There is an existing utility model in China, with patent number CN212200526U disclosing a loader hopper and a loader, including a hopper body, wherein both ends of the hopper body are provided with discharge holes, and the discharge holes are connected to the inner bottom surface of the hopper body; a gate is provided at the discharge hole, and the gate is hinged to the hopper body, and the gate is used to block the material in the hopper body; a locking mechanism is also provided on the hopper body, and the locking mechanism is used to control the opening and closing of the gate.

[0003] In order to solve the technical problem that the material cannot be completely discharged from the left or right side of the hopper due to the existence of a tilted dead angle, the above-mentioned prior art has discharge holes on both sides of the hopper, and valves are installed at the discharge holes, and a locking mechanism is set at the valve. Although the high-temperature asphalt can be completely discharged, the hopper tilts as a whole during the unloading process. When the roadbed is soft (i.e. the loader is unstable on the ground), the above operation causes the center of gravity to shift, and there may be a rollover.

[0004] In order to solve the above problems, we proposed a loader hopper locking mechanism. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a loader bucket locking mechanism.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A loader hopper locking mechanism comprises a hopper body, the hopper body is a square funnel structure, the lower end of the hopper body is connected to a square discharge pipe in the center, and the lower end of the discharge pipe is closed, the outer side of the discharge pipe is vertically and airtightly slidably connected to a valve pipe, and the lower end of the valve pipe is closed, each side of the discharge pipe is provided with a first discharge trough, each side of the valve pipe is provided with a second discharge trough, and the second discharge trough is the same size as the first discharge trough, an electric discharge structure is provided between the valve pipe and the discharge pipe, the upper end of the electric discharge structure is connected to a first locking structure, and each side of the discharge pipe and the valve pipe is connected to a second locking structure.

[0008] In the above-mentioned loader hopper locking mechanism, the electric unloading structure includes a dual-axis motor fixedly installed using multiple L-shaped connecting plates, and the lower output end of the dual-axis motor is connected to a first threaded rod through an electromagnetic clutch, and the first threaded rod passes through the valve tube and is threadedly connected thereto.

[0009] In the above-mentioned loader hopper locking mechanism, the lower end of the first threaded rod is fixedly connected to a limit plate, and the upper end of the limit plate is installed with a travel switch.

[0010] In the above-mentioned loader hopper locking mechanism, the first locking structure includes a first rotating plate fixedly connected to the upper output end of the dual-axis motor through an electromagnetic clutch, a second threaded rod is rotatably connected in each of the connecting plates, one end of the second threaded rod is fixedly connected to the second rotating plate, and the second rotating plate is toothedly matched with the first rotating plate, the other end of the second threaded rod is threadedly connected to a threaded barrel, the lower end of the discharge pipe is fixedly connected to a guide rail connected to each threaded barrel, the inner wall of the valve tube is provided with a slot, and the slot is plug-fitted with the threaded barrel.

[0011] In the above-mentioned loader hopper locking mechanism, the second locking structure includes a movable plate elastically limitedly connected to the upper end of the valve tube, a movable tooth plate is fixedly connected to the side of the movable plate close to the discharge pipe, and a fixed tooth plate that can engage with the movable tooth plate is fixedly connected to the outer wall of the discharge pipe and at the corresponding position of the movable tooth plate, and a separation structure is commonly connected between the multiple movable plates and the discharge pipe.

[0012] In the above-mentioned loader hopper locking mechanism, the lower end of the movable plate is fixedly connected to the limit block, the upper end of the valve tube is provided with a limit groove slidably connected to the limit block, and the inner wall of the limit groove on the side away from the discharge pipe is fixedly connected to the limit block with a spring.

[0013] In the above-mentioned loader bucket locking mechanism, the separation structure includes a fixed plate fixedly connected to the discharge pipe, a rotating shaft is rotatably connected inside the fixed plate, a cam is fixedly sleeved on the rotating shaft, a sprocket is coaxially fixedly connected to each of the rotating shafts, a plurality of sprockets are commonly tensioned with a chain, and a rotating motor for driving the rotating shaft is fixedly installed on the outer wall of the discharge pipe.

[0014] In the above-mentioned loader bucket locking mechanism, the cam has a pair of relatively distributed curved surfaces and a pair of relatively distributed straight surfaces.

[0015] Compared with the existing technology, the advantages of the loader bucket locking mechanism are:

[0016] The hopper body in the present invention is replaced with a square funnel structure. When high-temperature asphalt needs to be released, the first locking structure and the second locking structure can be unlocked, and the valve tube can be lowered under the drive of the electric unloading structure to connect the second discharge trough on the valve tube and the first discharge trough of the unloading pipe, so that the high-temperature asphalt can flow out through the unloading pipe and the second discharge pipe that are connected to each other. There is no need to tilt the hopper body to one side, which avoids the situation where the loader is unstable on the ground and the center of gravity shifts during the unloading process and rolls over, thereby improving the safety of the hopper body discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a loader bucket locking mechanism from a top view proposed by the present invention;

[0018] Figure 2 This is a structural cross-sectional view of a loader bucket locking mechanism proposed by the present invention from the front view;

[0019] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0021] Figure 5 This is a schematic structural diagram of a cam of a loader hopper locking mechanism proposed by the present invention, viewed from above.

[0022] In the figure: 1 hopper body, 2 discharge pipe, 3 valve pipe, 4 first discharge trough, 5 second discharge trough, 6 electromagnetic clutch, 7 dual-axis motor, 8 first threaded rod, 9 limit plate, 10 first rotating plate, 11 second rotating plate, 12 connecting plate, 13 second threaded rod, 14 threaded cylinder, 15 limit groove, 16 limit block, 17 spring, 18 movable plate, 19 movable tooth plate, 20 fixed tooth plate, 21 cam, 211 curved surface, 212 straight surface, 213 rotating shaft, 22 fixed plate, 23 sprocket, 24 chain, 25 rotating motor. DETAILED DESCRIPTION

[0023] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Example

[0024] Reference Figure 1-5 A loader bucket locking mechanism comprises a hopper body 1. The hopper body 1 is a square funnel structure. The center of the lower end of the hopper body 1 is connected to a square discharge pipe 2, and the lower end of the discharge pipe 2 is closed. The original bucket shape is changed to make the interior of the asphalt flow out in a square funnel structure that is convenient for asphalt to flow out, which is more conducive to complete outflow. There is no need to tilt the hopper body 1 to one side, which avoids the situation where the loader is unstable on the ground and the center of gravity shifts during the discharge process, resulting in overturning, thereby improving the safety of the hopper body 1 discharging materials.

[0025] A valve tube 3 is vertically and airtightly connected to the outside of the discharge pipe 2 in a sliding manner, and the lower end of the valve tube 3 is closed. A first discharge trough 4 is provided on each side of the discharge pipe 2, and a second discharge trough 5 is provided on each side of the valve tube 3. The second discharge trough 5 is the same size as the first discharge trough 4. An electric discharge structure is provided between the valve tube 3 and the discharge pipe 2. The upper end of the electric discharge structure is connected to a first locking structure, and each side of the discharge pipe 2 and the valve tube 3 is connected to a second locking structure.

[0026] When using the present invention, when the hopper body 1 is filled with high-temperature asphalt, the first discharge trough 4 and the second discharge trough 5 are in a misaligned state, and the second discharge trough 5 is located above the first discharge trough 4, thereby blocking the high-temperature asphalt in the discharge pipe 2 and the hopper body 1. At this time, the first locking structure, the second locking structure and the electric discharge structure are all in a locked state. When the high-temperature asphalt needs to be released later, the first locking structure and the second locking structure can be unlocked, and the valve tube 3 can be lowered under the drive of the electric discharge structure to connect the second discharge trough 5 on the valve tube 3 with the first discharge trough 4 of the discharge pipe 2, so that the high-temperature asphalt can flow out through the discharge pipe 2 and the second discharge trough 5 that are connected to each other.

[0027] Specifically, the electric unloading structure includes a dual-axis motor 7 fixedly installed using a plurality of L-shaped connecting plates 12. The lower output end of the dual-axis motor 7 is connected to a first threaded rod 8 through an electromagnetic clutch 6. The electromagnetic clutch 6 is a prior art. Whether to transmit torque to the first threaded rod 8 is determined by the engagement or separation inside the electromagnetic clutch 6. The first threaded rod 8 penetrates the valve tube 3 and is threadedly connected thereto. The lower end of the first threaded rod 8 is fixedly connected to a limit plate 9. A travel switch is installed on the upper end of the limit plate 9. The travel switch is a prior art. The travel switch is electrically connected to the dual-axis motor 7.

[0028] When using the present invention, under the premise that the first locking structure and the second locking structure have been unlocked, the electromagnetic clutch 6 is in an engaged state, the dual-axis motor 7 drives the first threaded rod 8 through the electromagnetic clutch 6, and the valve tube 3 gradually descends under the condition of limited sliding with the discharge tube 2 until the travel switch senses the dual-axis motor 7 to automatically shut down. During the descending process of the valve tube 3, the second discharge trough 5 is gradually and completely connected with the first discharge trough 4, so that the high-temperature asphalt flows out.

[0029] Specifically, the first locking structure includes a first rotating plate 10 fixedly connected to the upper output end of the dual-axis motor 7 through an electromagnetic clutch 6, and a second threaded rod 13 is rotatably connected in each connecting plate 12, and one end of the second threaded rod 13 is fixedly connected to a second rotating plate 11, and the second rotating plate 11 is toothed with the first rotating plate 10, that is, the gear teeth are meshed, and the other end of the second threaded rod 13 is threadedly connected to a threaded barrel 14, and the lower end of the discharge pipe 2 is fixedly connected to a guide rail connected to each threaded barrel 14, and the guide rail limits the movement direction of the threaded barrel 14, and a slot is opened on the inner wall of the valve tube 3, and the slot is plugged in and matched with the threaded barrel 14, and the valve tube 3 is locked by plugging the threaded barrel 14 into the slot.

[0030] When using the present invention, before using the electric unloading structure to lower the valve tube 3, the valve tube 3 is first unlocked. Specifically, the electromagnetic clutch 6 is in an engaged state, and the electromagnetic clutch 6 connected to the first threaded rod 8 is in a disengaged state. The dual-axis motor 7 drives the first rotating plate 10 through the electromagnetic clutch 6. The first rotating plate 10 transmits the torque to the second threaded rod 13 by engaging multiple second rotating plates 11. The threaded barrel 14 moves in a direction away from the valve tube 3 under the condition of limited sliding with the guide rail, so that it is pulled out of the slot and the locking of the valve tube 3 is stopped.

[0031] Specifically, the second locking structure includes a movable plate 18 elastically limitedly connected to the upper end of the valve tube 3. Specifically, the lower end of the movable plate 18 is fixedly connected to the limit block 16, and the upper end of the valve tube 3 is provided with a limit groove 15 slidably connected to the limit block 16. The inner wall of the limit groove 15 away from the feeding tube 2 is fixedly connected to the limit block 16 together with a spring 17. The movable tooth plate 19 on the side of the movable plate 18 is meshed with the fixed tooth plate 20 by the spring 17, so as to lock the valve tube 3. During the movement of the movable plate 18, the limit block 16 also slides synchronously in the limit groove 15.

[0032] A movable tooth plate 19 is fixedly connected to one side of the movable plate 18 close to the discharge pipe 2, and a fixed tooth plate 20 that can mesh with the movable tooth plate 19 is fixedly connected to the outer wall of the discharge pipe 2 and at the corresponding position of the movable tooth plate 19. A separation structure is commonly connected between the multiple movable plates 18 and the discharge pipe 2. More specifically, the separation structure includes a fixed plate 22 fixedly connected to the discharge pipe 2, and a rotating shaft 213 is rotatably connected inside the fixed plate 22. A cam 21 is fixedly sleeved on the rotating shaft 213. The cam 21 squeezes the movable plate 18 to move it in a direction away from the valve pipe 3, so that the movable tooth plate 19 is separated from the fixed tooth plate 20. A sprocket 23 is coaxially fixedly connected to each rotating shaft 213, and a chain 24 is commonly tensioned and sleeved on multiple sprockets 23. The torque is transmitted to the rotating shaft 213 through the engagement of the sprocket 23 and the chain 24. A rotating motor 25 for driving the rotating shaft 213 is fixedly installed on the outer wall of the discharge pipe 2.

[0033] The cam 21 has a pair of relatively distributed curved surfaces 211 and a pair of relatively distributed straight surfaces 212. The straight surfaces 212 are arranged so as to be in surface contact with the movable plate 18 and the valve tube 3 without the action of external force.

[0034] When the hopper body 1 of the present invention is filled with high-temperature asphalt, the movable tooth plate 19 on the side of the movable plate 18 is engaged with the fixed tooth plate 20 on the outer wall of the valve tube 3 under the elastic force of the spring 17, and the cam 21 is located between the movable plate 18 and the valve tube 3.

[0035] Before using the electric unloading structure to lower the valve tube 3, the valve tube 3 is first unlocked in the second step. Specifically, the rotating motor 25 drives the rotating shaft 213 to drive one of the sprockets 23 to rotate. The sprocket 23 uses the chain 24 to transmit the torque to each sprocket 23 and the rotating shaft 213 and cam 21 connected thereto. The curved surface 211 of the cam 21 first contacts the movable plate 18 and the valve tube 3, and then the straight surface 212 of the cam 21 contacts the movable plate 18 and the valve tube 3, thereby maintaining the relative position of the movable plate 18 and unlocking the valve tube 3.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A loader hopper locking mechanism, comprising a hopper body (1), characterized in that: The hopper body (1) is in a square funnel structure, the lower end of the hopper body (1) is connected to a square discharge pipe (2) at the center, and the lower end of the discharge pipe (2) is closed, the outer side of the discharge pipe (2) is vertically and airtightly slidably connected to a valve pipe (3), and the lower end of the valve pipe (3) is closed, each side of the discharge pipe (2) is provided with a first discharge trough (4), each side of the valve pipe (3) is provided with a second discharge trough (5), and the second discharge trough (5) is the same size as the first discharge trough (4), an electric discharge structure is provided between the valve pipe (3) and the discharge pipe (2), the upper end of the electric discharge structure is connected to a first locking structure, and each side of the discharge pipe (2) and the valve pipe (3) is connected to a second locking structure; The electric material discharge structure comprises a double-axis motor (7) fixedly mounted using a plurality of L-shaped connecting plates (12); the lower output end of the double-axis motor (7) is connected to a first threaded rod (8) via an electromagnetic clutch (6); the first threaded rod (8) penetrates the valve tube (3) and is threadedly connected thereto.

2. A loader hopper locking mechanism according to claim 1, characterized in that: The lower end of the first threaded rod (8) is fixedly connected to a limit plate (9), and the upper end of the limit plate (9) is mounted with a travel switch.

3. A loader hopper locking mechanism according to claim 2, characterized in that: The first locking structure comprises a first rotating plate (10) fixedly connected to the upper output end of the dual-axis motor (7) via an electromagnetic clutch (6); a second threaded rod (13) is rotatably connected inside each of the connecting plates (12); one end of the second threaded rod (13) is fixedly connected to the second rotating plate (11), and the second rotating plate (11) is gear-engaged with the first rotating plate (10); the other end of the second threaded rod (13) is threadedly connected to a threaded barrel (14); the lower end of the discharge pipe (2) is fixedly connected to a guide rail connected to each threaded barrel (14); a slot is provided on the inner wall of the valve pipe (3), and the slot is plug-engaged with the threaded barrel (14).

4. A loader hopper locking mechanism according to claim 3, characterized in that: The second locking structure comprises a movable plate (18) elastically limitedly connected to the upper end of the valve tube (3); a movable tooth plate (19) is fixedly connected to a side of the movable plate (18) close to the discharge tube (2); a fixed tooth plate (20) that can mesh with the movable tooth plate (19) is fixedly connected to the outer wall of the discharge tube (2) at a corresponding position of the movable tooth plate (19); and a separation structure is commonly connected between the plurality of movable plates (18) and the discharge tube (2).

5. A loader hopper locking mechanism according to claim 4, characterized in that: The lower end of the movable plate (18) is fixedly connected to a limit block (16); the upper end of the valve tube (3) is provided with a limit groove (15) slidably connected to the limit block (16); and the inner wall of the limit groove (15) on a side away from the discharge tube (2) is fixedly connected to the limit block (16) and a spring (17) is provided.

6. A loader hopper locking mechanism according to claim 5, characterized in that: The separation structure comprises a fixed plate (22) fixedly connected to the discharge tube (2), a rotating shaft (213) being rotatably connected inside the fixed plate (22), a cam (21) being fixedly sleeved on the rotating shaft (213), a sprocket (23) being coaxially fixedly connected to each of the rotating shafts (213), a chain (24) being tensionedly sleeved on a plurality of the sprockets (23), and a rotating motor (25) for driving the rotating shaft (213) being fixedly mounted on the outer wall of the discharge tube (2).

7. A loader hopper locking mechanism according to claim 6, characterized in that: The cam (21) has a pair of oppositely distributed curved surfaces (211) and a pair of oppositely distributed straight surfaces (212).

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