Automatic feeding device of concrete stirrer

Abstract

The utility model discloses an automatic feeding device of a concrete mixer, which comprises a feeding hopper hinged on a rack, the upper end of the feeding hopper is aligned with a feeding port of a mixing drum, and the lower end of the feeding hopper is positioned on the ground; and the feeding hopper can rotate relative to the rack under the driving of the driving mechanism. The feeding hopper is arranged and hinged to the rack, and the winch, the pulley and the steel wire rope drive the feeding hopper to rotate, so that automatic feeding is achieved, manual feeding to the interior of the stirrer is not needed, and labor is saved.

Description

Technical Field

[0001] The utility model relates to an automatic feeding device for a concrete mixer, belonging to the technical field of construction equipment. Background Art

[0002] Concrete is one of the most important civil engineering materials in contemporary times. It is an artificial stone made of cementitious materials, granular aggregates (also called aggregates), water, and admixtures and additives added in a certain proportion when necessary, which are evenly mixed, compacted into shapes, and cured and hardened.

[0003] A substation construction site uses a concrete mixer to mix concrete, but the raw materials of concrete (sand, aggregate, etc.) are added into the mixing drum manually one shovel at a time, resulting in a waste of manpower. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an automatic feeding device for a concrete mixer to solve the problems existing in the above-mentioned prior art.

[0005] The technical solution adopted by the utility model is: an automatic feeding device for a concrete mixer, comprising a feeding hopper hinged on a frame, the upper end of the feeding hopper is aligned with the feeding port of a mixing drum, and the lower end of the feeding hopper is located on the ground; the feeding hopper can rotate relative to the frame under the drive of a driving mechanism.

[0006] Preferably, the driving mechanism includes a pulley, a winch and a wire rope, the pulley is mounted on the frame above the mixer; the winch is fixed on the frame, one end of the wire rope is fixed to the lower part of the feeding hopper, and the other end is connected to the winch after passing around the top of the pulley.

[0007] Preferably, the number of the driving mechanisms is set to 2 groups and they are symmetrically arranged on both sides of the mixing drum, and the two strands of the steel wire ropes are respectively fixed to both sides of the lower part of the feeding hopper.

[0008] Preferably, a bracket with an upper end inclined toward the mixing drum is fixed on the frame, the number of the brackets is set to 2 and they are respectively located on both sides of the mixing drum, a horizontal connecting rod is fixed in the middle of the two brackets, and the upper part of the feeding hopper is located above the connecting rod and is hinged to the connecting rod.

[0009] Preferably, wheels are fixed on both sides of the middle of the feeding hopper, and the wheels are slidably connected to the bracket.

[0010] Preferably, the feeding hopper is L-shaped with an obtuse angle.

[0011] Preferably, a cover is fixed to the middle of the feeding hopper.

[0012] Preferably, the middle portion of the bracket is fixed to the frame via a vertical first support rod, and a horizontal second support rod is fixed between the first support rod and the bracket.

[0013] Preferably, fixing ears are fixed on both sides of the lower part of the charging hopper, and the steel wire rope is fixed to the fixing ears.

[0014] Preferably, the winch is electrically connected to a switch via a controller, and the controller and the switch are both arranged inside a control box fixed on the frame.

[0015] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model realizes automatic feeding by setting a feeding hopper and hingedly connecting the feeding hopper to a frame, and driving the feeding hopper to rotate through a winch, a pulley and a wire rope, thereby eliminating the need for manual feeding into the mixing unit and saving labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] The figure marks in the drawings of the specification include: mixing drum 10, feeding port 11, frame 20, feeding hopper 30, fixing ear 31, cover 32, wheel 33, bracket 40, connecting rod 41, first support rod 42, second support rod 43, pulley 50, wire rope 51, winch 52, control box 60.

[0019] Embodiment 1:

[0020] An automatic feeding device for a concrete mixer, such as Figure 1As shown, it includes a bracket, a hopper and a driving mechanism, the mixing drum is horizontally fixed on the frame, the mixing drum and the frame are existing, the bracket is a rectangular strip, the bracket is located on the right side of the mixing drum, the upper end of the bracket is tilted and fixed on the mixing drum, the middle part of the bracket is fixed to the frame through a vertical first support rod, a horizontal second support rod is fixed between the first support rod and the bracket, the lower end of the bracket is fixed to the ground, the number of brackets is set to 2 and they are respectively located on the front and rear sides of the mixing drum, and a horizontal connecting rod is fixed in the middle of the two brackets; the hopper is L-shaped obtuse angle, and the hopper is L-shaped obtuse angle. The upper part of the hopper is located above the connecting rod and is hinged to the connecting rod. The upper end of the hopper is aligned with the feeding port of the mixing drum. The hopper can rotate relative to the rotating stem under the action of external force, so that the material inside the hopper is added to the mixing drum through the feeding port. The lower end of the hopper is located on the ground; wheels are fixed on both sides of the middle part of the hopper, and the wheels are slidably connected to the bracket, and the wheels play a supporting role; a cover is fixed in the middle part of the hopper to prevent all the materials inside the hopper from entering the mixing drum at once during the feeding process, so as to facilitate the control of the feeding rate. Fixed ears are fixed on the front and rear sides of the lower part of the hopper.

[0021] like Figure 1 As shown, this embodiment also includes a pulley, a hoist and a wire rope. A pulley, a hoist and a wire rope constitute a set of driving mechanisms. The number of driving mechanisms is set to 2 groups and is arranged symmetrically about the front and rear of the mixing drum. Take the driving mechanism on the front side of the mixing drum as an example: the pulley is installed at the upper end of the bracket; the hoist is fixed on the frame, one end of the wire rope is fixed to the fixed ear, and the other end is connected to the hoist after passing around the top of the pulley; the hoist is electrically connected to a switch through a controller, and the controller and the switch are both set inside the control box, and the control box is fixed on the frame. The two sets of driving mechanisms share a control box.

[0022] The specific implementation process is as follows:

[0023] Manually add sand, aggregates and other raw materials of concrete into the hopper, start the mixing drum, and control the winch to work through the switch inside the control cabinet. When the winch reels in the wire rope, the lower end of the hopper rotates upward, and the materials inside the hopper automatically enter the mixing drum under the action of gravity. In order to facilitate the discharge of materials, the hopper can be intermittently rotated upward by a certain angle; when all the materials in the hopper are discharged, the switch is used to make the winch work again, the winch loosens the wire rope, and the hopper resets under its own gravity, thereby realizing automatic feeding.

[0024] The above description is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present utility model, which should be included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims

1. An automatic feeding device for a concrete mixer, characterized in that: It includes a feeding hopper hinged on the frame, the upper end of the feeding hopper is aligned with the feeding port of the mixing drum, and the lower end of the feeding hopper is located on the ground; the feeding hopper can rotate relative to the frame under the drive of the driving mechanism; the driving mechanism includes a pulley, a winch and a wire rope, the pulley is installed on the part of the frame located above the mixer; the winch is fixed on the frame, one end of the wire rope is fixed to the lower part of the feeding hopper, and the other end is connected to the winch after passing around the top of the pulley.

2. The automatic feeding device for a concrete mixer according to claim 1, characterized in that: The number of the driving mechanisms is set to 2 groups and they are symmetrically arranged on both sides of the mixing drum, and the two strands of the steel wire ropes are respectively fixed to both sides of the lower part of the feeding hopper.

3. The automatic feeding device for a concrete mixer according to claim 1, characterized in that: A bracket with an upper end inclined toward the mixing drum is fixed on the frame, the number of the brackets is set to 2 and they are respectively located on both sides of the mixing drum, a horizontal connecting rod is fixed in the middle of the two brackets, and the upper part of the feeding hopper is located above the connecting rod and is hinged to the connecting rod.

4. The automatic feeding device for a concrete mixer according to claim 3, characterized in that: Wheels are fixed on both sides of the middle of the feeding hopper, and the wheels are slidably connected to the bracket.

5. The automatic feeding device for a concrete mixer according to claim 1, characterized in that: The feeding hopper is L-shaped with an obtuse angle.

6. The automatic feeding device for a concrete mixer according to claim 5, characterized in that: A cover is fixed in the middle of the feeding hopper.

7. The automatic feeding device for a concrete mixer according to claim 3, characterized in that: The middle part of the bracket is fixed to the frame through a vertical first support rod, and a horizontal second support rod is fixed between the first support rod and the bracket.

8. The automatic feeding device for a concrete mixer according to claim 2, characterized in that: Fixing ears are respectively fixed on both sides of the lower part of the charging hopper, and the steel wire rope is fixed to the fixing ears.

9. The automatic feeding device for a concrete mixer according to claim 1, characterized in that: The hoist is electrically connected to a switch via a controller, and the controller and the switch are both arranged inside a control box fixed on a frame.

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