Discharging device of stirrer

By adopting two sets of double-link structures with pivots in the mixer unloading device, the structural instability and connection instability caused by the single-connection structure of the bend arm assembly in the prior art is solved, and the stable connection of the bend arm and the smoothness of the unloading door movement are achieved.

CN222933064UActive Publication Date: 2025-06-03QINGDAO CO NELE MACHINERY
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Patent Information

Application Number
CN202421868593.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-02
Publication Date
2025-06-03
Estimated Expiration
2034-08-02

AI Technical Summary

Technical Problem

The crimping arm assembly of the existing mixer discharge device is arranged as a single-connected structure, resulting in unstable structure and unstable connections that lead to loosening of the crimping arm.

Method used

Two sets of double-linked rod structures with pivots are adopted to ensure a stable connection between the pin seat and the fixed shaft.

Benefits of technology

The reel arm assembly is stable and difficult to loosen, and the reel cylinder drives the reel arm assembly to make the reel door open and close movement more stable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a discharging device of a stirrer, which belongs to the technical field of stirrer machinery and comprises a frame. A discharge hole is formed in the bottom of the mixing drum, and an openable discharge door is arranged on the discharge hole; the discharging mechanism is responsible for driving a discharging door to be opened and closed and comprises a supporting shaft fixedly connected with the bottom of the discharging door, the bottom of the supporting shaft is connected with a pin seat, a lifting sleeve is rotationally connected outside the supporting shaft, a guide sleeve is slidably connected outside the lifting sleeve, a supporting box is fixedly connected with the bottom of the guide sleeve, a fixed shaft is arranged in the supporting box, and a swing box is fixedly connected with the supporting box. The crank arm assembly is located in the supporting box and comprises two sets of double-connecting-rod structures with pivots, the two sets of double-connecting-rod structures are installed between the pin seat and the fixing shaft, one set of pivots are connected with one end of the pull rod, the discharging oil cylinder drives the lifting sleeve to slide along the guide sleeve through the crank arm assembly, and the crank arm assembly is arranged to be of the double-connecting-rod structure, so that the crank arm can be stably connected and is not prone to loosening and falling; therefore, the discharging door can operate more stably in the opening and closing movement process of the discharging door.
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Description

Technical Field

[0001] The utility model relates to the technical field of mixing machinery, in particular to a discharging device for a mixer. Background Art

[0002] The existing mixer includes a frame and a drum fixedly connected to the frame. An outlet is provided at the bottom of the drum, and a discharging cover that can be turned downwards to open is equipped on the outlet. In the discharging device of the mixer with the above structure, the crank arm assembly for driving the opening and closing of the discharging door is usually a single-link structure, which is likely to cause unstable structure. The single-link connection of the bearing at the connection of the crank arm assembly is unstable, resulting in the loosening of the crank arm.

[0003] Therefore, how to solve the problem of unstable structure caused by the single-link structure of the crank arm assembly in the discharging device of the existing mixer and the loosening of the crank arm caused by unstable connection is a technical problem that needs to be solved urgently at present. Summary of the Utility Model

[0004] Aiming at the deficiencies in the related art, the purpose of the utility model is to provide a discharging device for a mixer to solve the technical problems of unstable structure caused by the single-link structure of the crank arm assembly in the discharging device of the existing technology and the loosening of the crank arm caused by unstable connection.

[0005] The utility model provides a discharging device for a mixer, including:

[0006] A frame;

[0007] A mixing drum, an outlet is provided at the bottom of the mixing drum, and an openable discharging door is equipped on the outlet;

[0008] A discharging mechanism, which is responsible for driving the opening and closing of the discharging door. It includes a support shaft fixedly connected to the bottom of the discharging door, the bottom of the support shaft is connected to a pin seat, a lifting sleeve is rotatably connected outside the support shaft, a guide sleeve is slidably connected outside the lifting sleeve, a support box is fixedly connected to the bottom of the guide sleeve, a fixed shaft is arranged inside the support box, and a swinging box is fixedly connected to the support box;

[0009] A discharging oil cylinder, which is connected to the frame;

[0010] A crank arm assembly, which is located inside the support box and includes two groups of double-link structures with pivot shafts installed between the pin seat and the fixed shaft. One end of a pull rod is connected to the pivot shaft of one group of double-link structures, and the discharging oil cylinder drives the lifting sleeve to slide along the guide sleeve through the crank arm assembly.

[0011] By setting the crank arm assembly into two groups of double-link structures with pivot shafts, the crank arm can be stably connected and not easily loosened, so that the discharging oil cylinder can operate more smoothly during the movement of driving the crank arm assembly to open and close the discharging door.

[0012] In some embodiments of the present utility model, each double - link structure of the crank - arm assembly includes a straight crank - arm and an arc - shaped crank - arm.

[0013] In some embodiments of the present utility model, a spring for shock absorption is arranged between the pin seat and the support shaft.

[0014] In some embodiments of the present utility model, the pull rod moves within the swing, and the shape of the swing box is set to be sloped at the top to prevent material accumulation.

[0015] In some embodiments of the present utility model, a positioning arm is connected to the support box, and a mechanical limit seat matched with the positioning arm is connected to the frame.

[0016] In some embodiments of the present utility model, a guide wheel is connected below the positioning arm, and the guide wheel slides on the mechanical limit seat.

[0017] In some embodiments of the present utility model, a guide friction sleeve with a wedge - shaped inner surface is fixedly connected to the bottom of the mixing drum. When the discharge door swings past below the guide friction sleeve, the guide friction sleeve will scrape off the accumulated material on the discharge door.

[0018] In some embodiments of the present utility model, the swing box is provided with a pull - rod arc - shaped push rod. The left side of the arc - shaped push rod is hinged to the other end of the pull rod, the right side of the arc - shaped push rod is hinged to the discharge oil cylinder, and a stop block is further arranged on the arc - shaped push rod. The stop block is placed between two limit blocks arranged in the swing box.

[0019] In some embodiments of the present utility model, a lubricating bearing is arranged in the guide sleeve and is in clearance fit with the lifting sleeve.

[0020] The beneficial effects of the present utility model are as follows:

[0021] 1. The crank - arm assembly is set as two groups of double - link structures with pivot shafts, which can make the crank - arms stably connected and not easily fall off. Thus, during the movement process of the discharge oil cylinder driving the crank - arm assembly to open and close the discharge door, it can operate more smoothly.

[0022] 2. The shape of the swing box is set to be sloped at the top to prevent material accumulation.

[0023] 3. A guide wheel is also connected below the positioning arm, which can make the discharge door operate more smoothly during the opening and closing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will describe the specific embodiments of the present utility model in detail with reference to the drawings. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A three-dimensional structure diagram of a discharging mechanism provided by an embodiment of the present utility model;

[0026] Figure 2 is Figure 1 a bottom view of the discharging mechanism shown in

[0027] Figure 3 is Figure 1 a top view of the discharging mechanism shown in

[0028] Figure 4 is Figure 1 a structural schematic diagram of the discharging mechanism shown in when the discharging door is closed and opened;

[0029] Figure 5 A structural schematic diagram of a mixer provided by an embodiment of the present utility model;

[0030] Figure 6 A positional relationship diagram of a stop block and a limit block provided by an embodiment of the present utility model;

[0031] In the figure:

[0032] 1, frame; 2, mixing drum; 3, discharging mechanism; 4, guide wheel; 5, discharging door; 6, swing box; 7, support box; 8, guide sleeve; 9, lifting sleeve; 10, support shaft; 11, discharging oil cylinder; 12, guide friction sleeve; 13, friction block; 14, crank arm; 15, arc-shaped push rod; 16, pull rod; 17, stop block; 18, limit block; 19, positioning arm; 20, mechanical limit seat; 21, bearing shaft; 22, ear plate; 23, pin seat; 24, dust-proof sleeve; 25, spring; 26, universal shaft; 27, discharge port; 28, fixed shaft. Specific embodiments

[0033] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0035] The terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] As Figures 4 - 5 shown, in an embodiment of the discharging device of the mixer of the present utility model, it includes:

[0038] a frame 1;

[0039] a mixing drum 2, a discharge port 27 is provided at the bottom of the mixing drum 2, and a discharge door 5 that can be opened is equipped on the discharge port 27;

[0040] a discharging mechanism 3, the discharging mechanism 3 is responsible for driving the opening and closing of the discharge door 5, which includes a support shaft 10 fixedly connected to the bottom of the discharge door 5, the bottom of the support shaft 10 is connected to a pin seat 23, a lifting sleeve 9 is rotatably connected outside the support shaft 10, a guide sleeve 8 is slidably connected outside the lifting sleeve 9, a support box 7 is fixedly connected to the bottom of the guide sleeve 8, a fixed shaft 28 is provided inside the support box 7, and a swing box 6 is fixedly connected to the support box 7;

[0041] a discharging oil cylinder 11, the discharging oil cylinder 11 is connected to the frame 1;

[0042] a toggle arm assembly 14, the toggle arm assembly 14 is located inside the support box 7, which includes two sets of double-link structures with pivot shafts installed between the pin seat 23 and the fixed shaft 28. One end of a pull rod 16 is connected to the pivot shaft of one set of the double-link structures, and the discharging oil cylinder 11 drives the lifting sleeve 9 to slide along the guide sleeve 8 through the toggle arm assembly 14.

[0043] In the above-mentioned schematic embodiment, by setting the toggle arm assembly into two groups of double-link structures with pivots, the toggle arm can be stably connected and not easily fall off, so that the discharge oil cylinder can operate more smoothly during the movement of driving the toggle arm assembly to open and close the discharge door.

[0044] In some embodiments of the present invention, each double-link structure of the toggle arm assembly 14 includes a straight toggle arm and an arc toggle arm.

[0045] It should be noted that in this embodiment, by setting the toggle arm assembly into two groups of double-link structures with pivots and setting each double-link structure of the toggle arm assembly into a straight toggle arm and an arc toggle arm, the telescopic distance of the toggle arm assembly during the opening and closing of the discharge door is halved.

[0046] In some embodiments of the present invention, a spring 25 for shock absorption is provided between the pin seat 23 and the support shaft 10.

[0047] In some embodiments of the present invention, as Figures 1 - 2 shown, the pull rod 16 moves in the swing box 6, and the shape of the swing box 6 is set to be sloped at the top to prevent material accumulation.

[0048] In some embodiments of the present invention, a positioning arm 19 is connected to the support box 7, and a mechanical limit seat 20 matching with the positioning arm 19 is connected to the frame 1.

[0049] In some embodiments of the present invention, a guide wheel 4 is connected below the positioning arm 19, and the guide wheel 4 slides on the mechanical limit seat 20.

[0050] In some embodiments of the present invention, a guide friction sleeve 12 with a wedge-shaped inner surface is fixedly connected to the bottom of the mixing drum 2. When the discharge door 5 swings past below the guide friction sleeve 12, the guide friction sleeve 12 will scrape off the accumulated material on the discharge door 5.

[0051] In some embodiments of the present invention, as Figure 3 and Figure 6 shown, the swing box 6 is provided with a pull rod arc push rod 15. The left side of the arc push rod 15 is hinged to the other end of the pull rod 16, the right side of the arc push rod 15 is hinged to the discharge oil cylinder 11, and a stop block 17 is further provided on the arc push rod 15. The stop block 17 is placed between two limit blocks 18 provided in the swing box 6.

[0052] Through the description of multiple embodiments of the discharge device of the mixer of the present invention, it can be seen that the embodiments of the discharge device of the mixer of the present invention have at least one or more of the following advantages:

[0053] 1. The toggle arm assembly is set as a double-connected structure with two groups of pivots, which can stably connect the toggle arms and prevent them from loosening easily. Therefore, during the movement process of the discharge oil cylinder driving the toggle arm assembly to open and close the discharge door, it can operate more smoothly.

[0054] 2. The shape of the swing box is set with a sloping top to prevent material accumulation.

[0055] 3. A guide wheel is also connected below the positioning arm, which can make the discharge door operate more smoothly during the opening and closing process.

[0056] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and the key points of each embodiment are the differences from other embodiments. For the same or similar parts between the various embodiments, reference can be made to each other.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: still modifications can be made to the specific implementation manners of the present invention or equivalent replacements can be made to some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A mixer discharging device, characterized in that: include: Rack (1); A mixing drum (2), wherein a discharge port (27) is provided at the bottom of the mixing drum (2), and an openable discharge door (5) is provided on the discharge port (27); A discharge mechanism (3), the discharge mechanism (3) is responsible for driving the discharge door (5) to open and close, and comprises a support shaft (10) fixedly connected to the bottom of the discharge door (5), the bottom of the support shaft (10) is connected to a pin seat (23), a lifting sleeve (9) is rotatably connected to the outside of the support shaft (10), a guide sleeve (8) is slidably connected to the outside of the lifting sleeve (9), a support box (7) is fixedly connected to the bottom of the guide sleeve (8), a fixed shaft (28) is inside the support box (7), and a swing box (6) is fixedly connected to the support box (7); A discharge cylinder (11), wherein the discharge cylinder (11) is connected to the frame (1); A crank arm assembly (14), wherein the crank arm assembly (14) is located in a support box (7), and comprises two sets of double-link structures with pivots installed between a pin seat (23) and a fixed shaft (28), wherein the pivot of one set of the double-link structures is connected to one end of a pull rod (16), and the unloading cylinder (11) drives the lifting sleeve (9) to slide along the guide sleeve (8) through the crank arm assembly (14).

2. The mixer discharging device according to claim 1, characterized in that: Each set of double-connected structures of the crank arm assembly (14) comprises a straight crank arm and an arc-shaped crank arm.

3. The mixer discharging device according to claim 1, characterized in that: A spring (25) for shock absorption is arranged between the pin seat (23) and the support shaft (10).

4. The mixer discharging device according to claim 1, characterized in that: The pull rod (16) moves in the swing box (6), and the swing box (6) is shaped so that the top is sloped to prevent material accumulation.

5. The mixer discharging device according to claim 1, characterized in that: The support box (7) is connected to a positioning arm (19), and the frame (1) is connected to a mechanical limit seat (20) that matches the positioning arm (19).

6. The mixer discharging device according to claim 5, characterized in that: A guide wheel (4) is connected below the positioning arm (19), and the guide wheel (4) slides on a mechanical limit seat (20).

7. The mixer discharging device according to claim 1, characterized in that: A guide friction sleeve (12) whose inner surface is wedge-shaped is fixedly connected to the bottom of the mixing drum (2); when the discharge door (5) swings and passes under the guide friction sleeve (12), the guide friction sleeve (12) will scrape off the accumulated material on the discharge door (5).

8. The mixer discharging device according to claim 1, characterized in that: The swing box (6) is provided with a pull rod arc push rod (15), the left side of the arc push rod (15) is hinged to the other end of the pull rod (16), and the right side of the arc push rod (15) is hinged to the discharge cylinder (11). The arc push rod (15) is also provided with a stopper (17), and the stopper (17) is placed between two limit blocks (18) provided in the swing box (6).

9. The mixer discharging device according to claim 1, characterized in that: The guide sleeve (8) is provided with a lubricating bearing which is clearance-matched with the lifting sleeve (9).