Full-automatic feeding device of mixer truck

Abstract

The invention relates to the technical field of excavating equipment, in particular to a full-automatic feeding device of a mixer truck, which is arranged right in front of a mixing tank and on one side of a cab, and comprises a lifting mechanism hinged with the mixer truck and comprising a lifting arm, a pull rod and a lifting cylinder which are sequentially hinged with the mixer truck from top to bottom, the two ends of the adjusting arm extend and are hinged to a pull rod and an adjusting cylinder respectively, and the lifting cylinder is hinged to the middle of the lifting arm. A loading mechanism is hinged to the front end of the lifting arm and the adjusting cylinder and comprises a bucket with an opening in the front end, a discharging hopper is arranged at the rear end of the bucket in a communicated mode, a discharging groove with an upward opening is formed in the rear end of the discharging hopper, a sealing plate covers the discharging groove, the sealing plate is hinged to the discharging hopper, and a hopper sealing cylinder is hinged between the sealing plate and the discharging hopper. According to the full-automatic feeding device of the mixer truck, feeding work is automatically carried out; and materials in the feeding hopper can be completely discharged.

Description

Technical Field

[0001] The present invention relates to the technical field of excavation equipment, and specifically to a fully automatic feeding device for a mixer truck. Background Art

[0002] A mixing tank is a device used for mixing and transporting concrete, usually installed on a concrete mixer truck, also known as a concrete mixing and transporting truck. The main function of the mixing tank is to mix construction materials such as cement, sand, stones, and water into uniform concrete and maintain the uniformity and fluidity of the concrete during transportation.

[0003] Currently, the feeding method of the mixing tank is usually to transport the materials to the feeding hopper by a loader and then place the feeding hopper into the mixing tank by a lift. With the development of construction vehicles, a fully automatic feeding mixer truck has been designed by combining the lift and the mixer truck, which has the function of automatic feeding on the basis of ensuring the functions of concrete mixing and transportation. However, the conventional feeding method of concrete mixing and transporting trucks still has the following deficiencies:

[0004] 1. The transmission feeding method requires additional assistance from other equipment for the feeding work.

[0005] 2. In the feeding method of the fully automatic feeding mixer truck, the situation where the materials in the feeding hopper cannot be completely discharged may occur. Summary of the Invention

[0006] To solve the technical problems in the background art, the present invention provides a fully automatic feeding device for a mixer truck, which can perform the feeding work independently and can completely discharge the materials in the feeding hopper.

[0007] The technical solution adopted by the present invention is as follows:

[0008] A fully automatic feeding device for a mixer truck is provided in front of the mixing tank and on one side of the cab, and includes:

[0009] A lifting mechanism hinged to the mixer truck, including: a lifting arm, a pull rod, and a lifting cylinder hinged to the mixer truck in sequence from top to bottom. The middle part of the lifting arm is hinged with an adjusting arm, and the two ends of the adjusting arm extend and are respectively hinged with a pull rod and an adjusting cylinder. The lifting cylinder is hinged to the middle part of the lifting arm.

[0010] A loading mechanism is hinged to the front end of the lifting arm and the adjusting cylinder, including: a bucket with an open front end. The rear end of the bucket is communicated with a discharging hopper. The rear end of the discharging hopper is provided with a discharging slot with an upward opening. The discharging slot is movably covered with a sealing plate. The sealing plate is hinged to the discharging hopper, and a sealing bucket cylinder is hinged between the two.

[0011] Further, on the lifting arm, the hinge shaft of the lifting cylinder is arranged below the hinge shaft of the adjusting arm.

[0012] Further, two groups of lifting arms are symmetrically arranged in the left - right direction, and a connecting plate is arranged between the two groups of lifting arms; a limiting ear is protruding on the outer arm of the lifting arm, and the limiting ear is arranged in a "Π" shape, and the adjusting arm is accommodated in the limiting ear to prevent the adjusting arm from rotating excessively.

[0013] Further, the discharging hopper is arranged in a hollow pyramid shape, and its apex extends backward and upward;

[0014] A rubber strip is fixedly arranged at the edge of the sealing plate, and the rubber strip is hermetically connected with the inner walls of the two side plates and the lower bottom plate of the discharging hopper.

[0015] Further, two parallel extension plates extend backward on both sides of the discharging hopper, upper and lower hinge ears are respectively arranged at the upper and lower ends of the extension plates and extend backward, the upper hinge ear is hinged with the adjusting cylinder, and the lower hinge ear is hinged with the front end of the lifting arm.

[0016] Further, a push rod is slidably inserted into the front part of the lower bottom plate of the discharging hopper, a push plate is hinged at the connection between the inner bottom plate of the discharging hopper and the inner bottom plate of the bucket, a return spring is sleeved outside the push rod, a hinge rod is hinged at the rear part of the lower bottom plate of the discharging hopper, the front end of the hinge rod is hinged with the push rod, and both ends of the return spring are abutted against the lower bottom plate of the discharging hopper and the hinge rod respectively.

[0017] Further, a top head in contact with the push plate is arranged at the end of the push rod.

[0018] Further, curved extension arms are arranged on the sealing plate, a plurality of extension arms are arranged in parallel, and a cone head is arranged at the end of the extension arm.

[0019] When the sealing plate is in the open state, the extension arm and the cone head arranged at its end are in contact with the lower bottom plate of the discharging hopper; when the sealing plate is in the closed state, the cone head arranged at the end of the extension arm is in contact with the upper top plate of the bucket.

[0020] A plurality of through - grooves for accommodating the extension arms are arranged at intervals on the push plate.

[0021] Further, a sliding rod is arranged at the rear end of the hinge rod.

[0022] Further, a slideway is protruding at the edge of the opening of the mixing tank, the outer wall of the slideway is inclined and is slidably connected with the sliding rod.

[0023] The beneficial effects of the full - automatic feeding device of the mixer truck of the present invention:

[0024] 1. Shovel materials through the bucket and achieve feeding through the lifting mechanism, thus realizing autonomous feeding work;

[0025] 2. Assist in discharging materials through the extension arm and the impact vibration of the top head, and better empty the bucket and the discharge hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the front view schematic diagram of the shoveling state of the embodiment of the present invention;

[0027] Figure 2 is the front view schematic diagram of the loading state of the embodiment of the present invention;

[0028] Figure 3 is the front view schematic diagram of the discharging state of the embodiment of the present invention;

[0029] Figure 4 is the three-dimensional schematic diagram of the lifting mechanism and the loading mechanism of the embodiment of the present invention Figure 1 ;

[0030] Figure 5 is the three-dimensional schematic diagram of the lifting mechanism and the loading mechanism of the embodiment of the present invention Figure 2 ;

[0031] Figure 6 is the front view sectional schematic diagram of the loading mechanism of the embodiment of the present invention;

[0032] Figure 7 is the partial enlarged three-dimensional schematic diagram of the mixing tank of the embodiment of the present invention.

[0033] In the figure:

[0034] 10. Cab, 11. Mixing tank, 110. Slideway,

[0035] 2. Lifting mechanism,

[0036] 21. Lifting arm, 22. Connecting plate, 23. Lifting cylinder, 24. Adjusting arm, 25. Limit ear, 26. Pull rod,

[0037] 27. Adjusting cylinder,

[0038] 3. Loading mechanism,

[0039] 30. Bucket, 31. Discharge hopper, 311. Push rod, 312. Push plate, 313. Return spring, 32. Extension plate,

[0040] 33. Upper hinge ear, 34. Lower hinge ear, 35. Sealing plate, 351. Extension arm, 36. Sealing bucket cylinder, 37. Hinge rod,

[0041] 371. Slide bar. DETAILED DESCRIPTION OF THE INVENTION

[0042] In order to more clearly and explicitly illustrate the specific implementation objectives and implementation manners of the present invention, the technical solution of the present invention will be described in full below. The described embodiments are part of the embodiments of the present invention, rather than all embodiments. All other embodiments based on the described embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

[0043] An automatic feeding device for a mixer truck of the present invention, as Figure 1 , Figure 2 , Figure 3 shown, is arranged directly in front of the mixing tank 11 and on one side of the cab 10, and includes:

[0044] A lifting mechanism 2 hinged to the mixer truck, as Figure 4 , Figure 5 , Figure 6 shown, includes: a lifting arm 21, a pull rod 26, and a lifting cylinder 23 hinged to the mixer truck in sequence from top to bottom. An adjusting arm 24 is hinged in the middle of the lifting arm 21; on the lifting arm 21: the hinge shaft of the lifting cylinder 23 is arranged below the hinge shaft of the adjusting arm 24. Two groups of lifting arms 21 are symmetrically arranged in the left-right direction, and a connecting plate 22 is arranged between the two groups of lifting arms 21; a limiting ear 25 protrudes from the outer arm of the lifting arm 21, and the limiting ear 25 is arranged in a "Π" shape, and the adjusting arm 24 is accommodated in the limiting ear 25 to prevent the adjusting arm 24 from rotating excessively. The two ends of the adjusting arm 24 extend, and a pull rod 26 and an adjusting cylinder 27 are respectively hinged, and the lifting cylinder 23 is hinged to the middle of the lifting arm 21.

[0045] A loading mechanism 3 is hinged to the front end of the lifting arm 21 and on the adjusting cylinder 27, as Figure 4 , Figure 5 , Figure 6 shown, includes: a bucket 30 with an open front end, a discharge hopper 31 is communicated with the rear end of the bucket 30, the discharge hopper 31 is arranged in a hollow pyramid shape, and its apex extends backward and upward; a push rod 311 is slidably inserted into the front part of the lower bottom plate of the discharge hopper 31, a push plate 312 is hinged at the connection between the inner bottom plate of the discharge hopper 31 and the inner bottom plate of the bucket 30, a plurality of through grooves are arranged at intervals on the push plate 312, the end of the push rod 311 is provided with a top head in contact with the push plate 312, a return spring 313 is sleeved outside the push rod 311, and a hinge rod 37 is hinged to the rear part of the lower bottom plate of the discharge hopper 31, and a sliding rod 371 is arranged at the rear end of the hinge rod 37, as Figure 7As shown in the figure, a slideway 110 is protrudingly arranged at the edge of the opening of the mixing tank 11. The outer wall of the slideway 110 is inclined and provided with multiple groups, and is slidably connected with the slide rod 371. The front end of the hinge rod 37 is hinged with the ejector rod 311. The two ends of the return spring 313 are respectively abutted against the lower bottom plate of the discharge hopper 31 and the hinge rod 37. Parallel extension plates 32 are arranged at the two sides of the discharge hopper 31 and extend backward. Upper hinge ears 33 and lower hinge ears 34 are respectively arranged at the upper and lower ends of the extension plate 32 and extend backward. The upper hinge ear 33 is hinged with the adjustment cylinder 27, and the lower hinge ear 34 is hinged with the front end of the lifting arm 21. A discharge chute with an upward opening is arranged at the rear end of the discharge hopper 31. A sealing plate 35 is movably covered on the discharge chute. A rubber strip is fixedly arranged at the edge of the sealing plate 35. The rubber strip is hermetically connected with the inner walls of the two side plates and the lower bottom plate of the discharge hopper 31. The sealing plate 35 is hinged with the discharge hopper 31, and a sealing hopper cylinder 36 is hinged between the two. A bent extension arm 351 is arranged on the sealing plate 35. A plurality of extension arms 351 are arranged in parallel. A conical head is arranged at the end of the extension arm 351. The extension arm 351 is movably accommodated in a through groove arranged at intervals on the push plate 312. When the sealing plate 35 is in the open state, the extension arm 351 and the conical head arranged at its end are in contact with the lower bottom plate of the discharge hopper 31. When the sealing plate 35 is in the closed state, the conical head arranged at the end of the extension arm 351 is in contact with the upper top plate of the bucket 30.

[0046] According to the specific structure of a fully automatic feeding device for a mixer truck in the above embodiment, the working method of a fully automatic feeding device for a mixer truck will be further described below:

[0047] A. Shoveling materials:

[0048] As Figure 1 shown, when the stroke end of the lifting cylinder 23 retracts and the stroke end of the adjustment cylinder 27 extends, at this time, the bucket 30 is in a state with the opening facing forward. By moving the mixer truck forward, the materials are shoveled into the bucket 30;

[0049] As Figure 2 shown, when the stroke end of the lifting cylinder 23 retracts and the stroke end of the adjustment cylinder 27 retracts, at this time, the bucket 30 is in a state with the opening facing upward, so that the materials in the bucket 30 enter the discharge hopper 31;

[0050] Repeat the above steps to fill the bucket 30 and the discharge hopper 31 with materials.

[0051] As Figure 3 shown, when the stroke end of the lifting arm 21 extends and the stroke end of the adjustment cylinder 27 retracts, at this time, the lifting arm 21 rises and drives the bucket 30 and the discharge hopper 31 to rise. The adjustment arm 24 rotates to make the opening of the bucket 30 face upward and the discharge port of the discharge hopper 31 extend into the opening of the mixing tank 11.

[0052] B. Discharging materials:

[0053] As Figure 6 shown, the stroke end of the sealing hopper cylinder 36 retracts. At this time, the sealing plate 35 opens, and the materials in the bucket 30 and the discharging hopper 31 are discharged into the mixing tank 11 through the discharging chute;

[0054] Adjust the stroke end of the sealing hopper cylinder 36 multiple times to open and close the sealing plate 35 multiple times, driving the extension arm 351 to rotate, so as to discharge the materials in the conical head auxiliary discharging hopper 31.

[0055] The mixing tank 11 rotates to make the slideway 110 intermittently slide-connected with the slide bar 371: when the slideway 110 is in sliding contact with the slide bar 371, the end of the hinge rod 37 approaches the lower bottom plate of the discharging hopper 31, and the ejector rod 311 is pushed to make the ejector head push up the push plate 312 to assist in discharging the materials in the discharging hopper 31; when the slideway 110 is not in contact with the slide bar 371, under the action of the return spring 313, the end of the hinge rod 37 moves away from the lower bottom plate of the discharging hopper 31, and the ejector rod 311 is pulled back to its original state. At the moment when the slide bar 371 moves away from the slideway 110, under the action of the return spring 313, the end of the hinge rod 37 quickly moves away from the lower bottom plate of the discharging hopper 31, and the ejector rod 311 is quickly pulled back to its original state. The ejector head hits the lower bottom plate of the discharging hopper 31, and the vibration makes the materials in the bucket 30 and the discharging hopper 31 further discharged.

[0056] In summary, it is only the preferred embodiment of the present invention and is not used to limit the scope of the present invention. Through the above description, relevant staff can make various changes and modifications completely within the scope not deviating from the technical idea of this invention. The technical scope of the present invention is not limited to the content in the specification. All equivalent changes and modifications in terms of the shape, structure, features and spirit described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A fully automatic loading device for a mixer truck, arranged in front of a mixing tank (11) and on one side of a cab (10), characterized in that: include: The lifting mechanism (2) articulated with the mixer truck comprises: A lifting arm (21), a pull rod (26), and a lifting cylinder (23) are hingedly connected to the mixer truck in sequence from top to bottom. An adjusting arm (24) is hingedly provided at the middle of the lifting arm (21). Both ends of the adjusting arm (24) are extended and hingedly provided with a pull rod (26) and an adjusting cylinder (27), respectively. The lifting cylinder (23) is hingedly connected to the middle of the lifting arm (21); A loading mechanism (3) is hingedly provided on the front end of the lifting arm (21) and the adjusting cylinder (27), and comprises: A shovel (30) with an opening at the front end is provided with a discharge hopper (31) at the rear end of the shovel (30), a discharge trough (31) with an upward opening is provided at the rear end of the discharge hopper (31), a sealing plate (35) is provided on a movable cover of the discharge trough, the sealing plate (35) is hingedly connected to the discharge hopper (31), and a bucket sealing cylinder (36) is hingedly provided between the two.

2. The fully automatic loading device for a mixer truck according to claim 1, characterized in that: On the lifting arm (21): The hinge axis of the lifting cylinder (23) is arranged below the hinge axis of the adjusting arm (24).

3. The fully automatic loading device for a mixer truck according to claim 2, characterized in that: The lifting arms (21) are symmetrically arranged in two groups along the left-right direction, and a connecting plate (22) is arranged between the two groups of lifting arms (21); A limiting ear (25) is protruding from the outer arm of the lifting arm (21), wherein the limiting ear (25) is arranged in a "Π" shape, and the adjusting arm (24) is accommodated in the limiting ear (25) to prevent the adjusting arm (24) from excessive rotation.

4. The fully automatic loading device for a mixer truck according to claim 1, characterized in that: The discharge hopper (31) is configured to be in the shape of a hollow pyramid, and the top of the pyramid extends backward and upward; A rubber strip is fixedly provided at the edge of the sealing plate (35), and the rubber strip is sealingly connected to the inner walls of the two side plates and the lower bottom plate of the discharge hopper (31).

5. A fully automatic loading device for a mixer truck according to claim 1 or 4, characterized in that: Parallel extension plates (32) are provided on both sides of the discharge hopper (31) extending backwards, and upper and lower ends of the extension plates (32) are provided with upper hinged ears (33) and lower hinged ears (34) extending backwards, respectively. The upper hinged ears (33) are hingedly connected to the adjustment cylinder (27), and the lower hinged ears (34) are hingedly connected to the front end of the lifting arm (21).

6. The fully automatic loading device for a mixer truck according to claim 5, characterized in that: A push rod (311) is slidably inserted at the front of the lower bottom plate of the discharge hopper (31), a push plate (312) is hingedly provided at the connection between the inner bottom plate of the discharge hopper (31) and the inner bottom plate of the bucket (30), a return spring (313) is provided on the outer sleeve of the push rod (311), a hinged rod (37) is hingedly provided at the rear of the lower bottom plate of the discharge hopper (31), the front end of the hinged rod (37) is hingedly connected to the push rod (311), and two ends of the return spring (313) are respectively in contact with the lower bottom plate of the discharge hopper (31) and the hinged rod (37).

7. The fully automatic loading device for a mixer truck according to claim 6, characterized in that: The end of the push rod (311) is provided with a push head that contacts the push plate (312).

8. The fully automatic loading device for a mixer truck according to claim 6, characterized in that: The sealing plate (35) is provided with a bent extension arm (351), a plurality of the extension arms (351) are arranged in parallel, and a cone head is provided at the end of the extension arm (351); When the sealing plate (35) is in an open state, the extension arm (351) and the cone head provided at the end thereof are in contact with the lower bottom plate of the discharge hopper (31); when the sealing plate (35) is in a closed state, the cone head provided at the end of the extension arm (351) is in contact with the upper top plate of the bucket (30); The push plate (312) is provided with a plurality of through slots for accommodating the extension arms (351) at intervals.

9. The fully automatic loading device for a mixer truck according to claim 8, characterized in that: A sliding rod (371) is provided at the rear end of the hinged rod (37).

10. The fully automatic loading device for a mixer truck according to claim 9, characterized in that: A slideway (110) is protruding from the edge of the opening of the stirring tank (11), and the outer wall of the slideway (110) is inclined and is slidably connected to the slide rod (371).

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