Single-shaft double-layer paddle type mixing machine

Abstract

The utility model provides a single-shaft double-layer paddle type mixing machine and belongs to the technical field of mixing machines. Comprising a machine base frame, a mixing chamber is arranged in the machine base frame, a rotating shaft is rotationally arranged in the mixing chamber, one end of the rotating shaft is connected with a driving motor used for driving the rotating shaft to rotate, a plurality of shaft sleeves are arranged on the rotating shaft in the axial direction at intervals, connecting rods are arranged on the shaft sleeves in the radial direction of the shaft sleeves, and two blades are arranged on the connecting rods at intervals; a discharge opening is formed in the bottom of the mixing chamber on the machine base frame body, and a discharge door is movably connected to the discharge opening. Due to the design of the double-layer blades, the material stirring effect can be improved, and the beneficial effect of improving the stirring efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a single-shaft double-layer paddle mixer. Background Art

[0002] A mixer is a mechanical device that uses mechanical force and gravity to evenly mix two or more materials. Paddle mixers are mostly used to mix and process powdered, granular, blocky and viscous materials.

[0003] The paddle mixer includes a base frame, a mixing chamber is arranged inside the base frame, a rotating shaft is rotatably connected in the mixing chamber, and a plurality of connecting rods are fixedly arranged at intervals along the circumference of the rotating shaft on the outer wall of the rotating shaft, and a paddle is installed at one end of the connecting rod away from the rotating shaft. Rotating the rotating shaft can drive the paddle on the connecting rod to rotate around the rotating shaft to stir the materials in the mixing chamber.

[0004] However, the traditional paddle mixer stirs the material only by a paddle on the connecting rod, which requires the mixer to spend a long time to stir the material evenly, resulting in low stirring efficiency. Utility Model Content

[0005] In view of the above problems, the utility model provides a single-shaft double-layer paddle mixer.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] A single-shaft double-layer paddle mixer is provided, comprising a base frame, a mixing chamber is arranged in the base frame, a rotating shaft is rotatably arranged in the mixing chamber, one end of the rotating shaft is connected to a driving motor for driving the rotating shaft, a plurality of shaft sleeves are arranged at intervals along the axial direction of the rotating shaft, a connecting rod is arranged along the radial direction of the shaft sleeve, two paddles are arranged at intervals on the connecting rod, a discharge port is opened on the base frame at the bottom of the mixing chamber, and a discharge door is movably connected to the discharge port.

[0008] Furthermore, the shaft sleeve is movably mounted on the rotating shaft, a plurality of connecting rods are evenly distributed along the circumference of the rotating shaft, and a plurality of limiting members for limiting the sliding of the shaft sleeve relative to the rotating shaft are also arranged on the rotating shaft.

[0009] Furthermore, the limiting member includes a limiting bolt, a plurality of threaded holes with sizes matching the limiting bolts are opened on the rotating shaft, a through hole is opened on the sleeve, and the limiting bolt passes through the through hole and is threadedly connected in the corresponding threaded hole.

[0010] Furthermore, a rotating rod is rotatably arranged on the machine base frame below the discharge port, the rotating rod is fixedly connected to the discharge door, a driving piston cylinder is provided on the machine base frame, the piston rod of the driving piston cylinder is transmission-connected to one end of the rotating rod, a connecting rod is provided on the machine base frame, and the driving piston cylinder drives the rotating rod to rotate through the connecting rod to open / close the discharge door.

[0011] Furthermore, the two ends of the rotating shaft respectively pass through the two side walls of the machine base frame, one end of the rotating shaft is connected to the bearing seat, and the other end is connected to the driving motor. The two side walls of the machine base frame are provided with through holes with an aperture larger than the outer diameter of the rotating shaft, and a sealing sleeve is movably sleeved at the through hole on the rotating shaft for sealing the gap between the rotating shaft and the through hole, an annular protrusion is fixedly provided on the outer wall of the sealing sleeve, and the protrusion is detachably connected to the outer wall of the machine base frame, a groove is provided at one end of the sealing sleeve away from the machine base frame, a first sealing ring is movably sleeved on the rotating shaft in the groove, and a sealing cover for limiting the slippage of the first sealing ring is also connected to the sealing sleeve.

[0012] Furthermore, inclined guide surfaces are provided at both ends of the outer side of the first sealing ring, and an insert block for inserting into the groove is fixedly provided on the side of the sealing cover close to the first sealing ring. A side of the insert block close to the first sealing ring and the inner bottom wall of the groove are respectively provided with inclined surfaces that fit with the corresponding guide surfaces.

[0013] Furthermore, the projection is bolted to the outer wall of the base frame, and a second sealing ring is coaxially sleeved on the sealing sleeve between the projection and the base frame.

[0014] The beneficial effects of the utility model are:

[0015] 1. Put the material into the mixing chamber through the feeding port, then start the driving motor to drive the rotating shaft to rotate, and the multiple connecting rods on the rotating shaft rotate around the rotating shaft, so that the paddles can continuously stir the material. Two paddles are installed on the connecting rods, which can improve the stirring effect of the material and improve the stirring efficiency of the mixer;

[0016] 2. Inclined guide surfaces are provided at both ends of the outer side of the first sealing ring. An insert block for inserting into the groove is integrally fixed on one side of the sealing cover close to the first sealing ring. One side of the insert block close to the first sealing ring and the inner bottom wall of the groove are respectively provided with inclined surfaces that fit with the corresponding guide surfaces. When the insert block is inserted into the groove, the inclined surface abuts against the guide surface, so that the inner side wall of the first sealing ring is tightly against the outer wall of the rotating shaft, which can improve the sealing effect on the gap between the rotating shaft and the sealing sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a single-shaft double-layer paddle mixer according to an embodiment of the present application.

[0018] Figure 2This is a schematic diagram of the blade assembly of a single-shaft double-layer paddle mixer according to an embodiment of the present application.

[0019] Figure 3 for Figure 1 A partial enlarged schematic diagram of part A.

[0020] Figure 4 The figure is a schematic diagram of the driving component structure of a single-shaft double-layer paddle mixer.

[0021] Among them, 1. base frame; 11. mixing chamber; 2. rotating shaft; 21. driving motor; 3. bushing; 4. connecting rod; 5. paddle; 6. unloading door; 7. limiting bolt; 8. driving piston cylinder; 81. rotating rod; 82. first pull rod; 83. second pull rod; 84. triangular pull rod; 91. sealing sleeve; 92. bump; 93. first sealing ring; 931. guide surface; 94. sealing cover; 10. second sealing ring. DETAILED DESCRIPTION

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The present application discloses a single-shaft double-layer paddle mixer. Figure 1 and Figure 2 , including a base frame 1, a mixing chamber 11 is provided in the base frame 1, a rotating shaft 2 is rotatably provided in the mixing chamber 11, and both ends of the rotating shaft 2 pass through the base frame 1. A bearing seat is installed at one end of the rotating shaft 2 on the base frame 1, and a driving motor 21 is installed at the other end of the rotating shaft 2. The driving motor 21 and the rotating shaft 2 are connected by a reducer, so that the driving motor 21 can drive the rotating shaft 2 to rotate through the reducer. A plurality of sleeves 3 are installed at intervals along the axial direction of the rotating shaft 2, and a connecting rod 4 is welded on the sleeve 3 along its own radial direction, and two paddles 5 are welded on the connecting rod 4 at intervals. A discharge port is opened at the bottom of the mixing chamber 11 on the base frame 1, and a discharge door 6 is movably connected to the discharge port.

[0024] In the embodiment of the present application, a feeding port is provided on the base frame 1 at the top of the mixing chamber 11, and materials are fed into the mixing chamber 11 through the feeding port, and then the driving motor 21 is started to drive the rotating shaft 2 to rotate. The multiple connecting rods 4 on the rotating shaft 2 rotate around the rotating shaft 2, so that the paddles 5 can continuously stir the materials. The design of the double-layer paddles 5 can improve the stirring effect of the materials, thereby improving the stirring efficiency of the mixer. After the materials are stirred, the discharge door 6 is opened to discharge the materials.

[0025] Specifically, the sleeve 3 is movably sleeved on the rotating shaft 2, and a plurality of connecting rods 4 are evenly distributed along the circumference of the rotating shaft 2. The rotating shaft 2 is also provided with a plurality of stoppers for limiting the sleeve 3 from sliding relative to the rotating shaft 2.

[0026] In the embodiment of the present application, a plurality of connecting rods 4 are installed at intervals along the axial direction of the rotating shaft 2, and the plurality of connecting rods 4 are evenly distributed along the circumference of the rotating shaft 2. This design allows the blades 5 and the connecting rods 4 to stir the material more evenly, further improving the stirring effect of the material.

[0027] Reference Figure 3 The limiting member includes a limiting bolt 7. The rotating shaft 2 is provided with a plurality of threaded holes of a size matching the limiting bolt 7, and the shaft sleeve 3 is provided with a through hole. The limiting bolt 7 passes through the through hole and is threadedly connected in the corresponding threaded hole. The shaft sleeve 3 can be fixed by tightening the limiting bolt 7. When the blade 5 is damaged during long-term operation of the mixer, the bearing seats and the reducer at both ends of the rotating shaft 2 can be untied, and the limiting bolt 7 can be loosened to replace the damaged blade 5 and the corresponding shaft sleeve 3 and the connecting rod 4.

[0028] Reference Figure 4 A rotating rod 81 is rotatably provided on the base frame 1 below the discharge port, and the rotating rod 81 is welded to the discharge door 6. A driving piston cylinder 8 is hinged on the base frame 1, and a piston rod of the driving piston cylinder 8 is transmission-connected to one end of the rotating rod 81. A connecting rod is installed on the base frame 1, and the driving piston cylinder 8 drives the rotating rod 81 to rotate through the connecting rod to open / close the discharge door 6.

[0029] Specifically, the connecting rod member includes a first tie rod 82. One end of the first tie rod 82 is welded to one end of the rotating shaft 2, and the other end is rotatably connected to a second tie rod 83. One end of the second tie rod 83 away from the first tie rod 82 is rotatably connected to a triangular tie rod 84, and one end of the triangular tie rod 84 away from the first tie rod 82 is rotatably connected to the base frame 1. The piston rod of the driving piston cylinder 8 is rotatably connected to one end of the triangular tie rod 84 close to the second tie rod 83.

[0030] In the embodiment of the present application, the driving piston cylinder 8 can be a hydraulic cylinder. When the mixing of the materials in the mixing chamber 11 is completed, the driving piston cylinder 8 drives the piston rod to retract into the cylinder body, and the piston rod pulls the triangular pull rod 84 to rotate on the base frame 1, thereby driving the second pull rod 83 to pull the first pull rod 82, so that the rotating rod 81 rotates to open the discharge door 6. After the materials are discharged, the driving piston cylinder 8 drives the piston rod to extend out of the cylinder body, and the rotating rod 81 can be driven to rotate back to close the discharge door 6.

[0031] Since the two ends of the rotating shaft 2 pass through the two side walls of the base frame 1 respectively, through holes with a diameter larger than the outer diameter of the rotating shaft 2 are provided on the two side walls. A sealing sleeve 91 for sealing the gap between the rotating shaft 2 and the through hole is movably sleeved on the rotating shaft 2 at the through hole, and an annular protrusion 92 is integrally fixed on the outer wall of the sealing sleeve 91, and the protrusion 92 is connected to the outer wall of the base frame 1 through a group of bolts. A groove is provided at one end of the sealing sleeve 91 away from the base frame 1, and a first sealing ring 93 is movably sleeved on the rotating shaft 2 in the groove, and a sealing cover 94 for limiting the sliding of the first sealing ring 93 is also installed on the sealing sleeve 91. The material in the mixing chamber 11 is prevented from leaking to the outside along the gap between the rotating shaft 2 and the through hole.

[0032] Furthermore, inclined guide surfaces 931 are provided at both ends of the outer side of the first sealing ring 93, and an insert block for inserting into the groove is integrally fixed on one side of the sealing cover 94 close to the first sealing ring 93, and a side of the insert block close to the first sealing ring 93 and the inner bottom wall of the groove are respectively provided with inclined surfaces that fit with the corresponding guide surfaces 931.

[0033] In the embodiment of the present application, the sealing cover 94 is connected to the sealing sleeve 91 by another set of bolts. In the process of tightening the set of bolts, the plug is gradually inserted into the groove, and the guide surfaces 931 at both ends of the first sealing ring 93 are respectively squeezed by the inclined surfaces of the plug and the inner bottom wall of the groove, so that the inner side wall of the first sealing ring 93 is closely attached to the outer wall of the rotating shaft 2, thereby improving the sealing effect on the gap between the rotating shaft 2 and the sealing sleeve 91.

[0034] Furthermore, a second sealing ring 10 is provided on the sealing sleeve 91 between the protrusion 92 and the base frame 1 and the coaxial sleeve 3 to improve the sealing effect on the gap between the sealing sleeve 91 and the through hole.

[0035] The implementation principle of a single-shaft double-layer paddle mixer in the embodiment of the present application is as follows: during the use of a single-shaft double-layer paddle mixer, materials are fed into the mixing chamber 11 through the feeding port, and then the driving motor 21 is started to drive the rotating shaft 2 to rotate. The multiple connecting rods 4 on the rotating shaft 2 rotate around the rotating shaft 2, so that the paddles 5 can continuously stir the materials. Two paddles 5 are welded on the connecting rod 4, which can improve the stirring effect on the materials. Compared with the traditional paddle 5 mixer, the paddle 5 mixer of the present application has the function of improving the stirring efficiency of the mixer.

[0036] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A single-shaft double-layer paddle mixer, characterized in that: The invention comprises a base frame (1), wherein a mixing chamber (11) is arranged in the base frame (1), a rotating shaft (2) is rotatably arranged in the mixing chamber (11), one end of the rotating shaft (2) is connected to a driving motor (21) for driving the rotating shaft (2), a plurality of shaft sleeves (3) are arranged at intervals along the axial direction on the rotating shaft (2), a connecting rod (4) is arranged along the radial direction of the shaft sleeve (3), two paddle blades (5) are arranged at intervals on the connecting rod (4), and a discharge port is opened at the bottom of the mixing chamber (11) on the base frame (1), and a discharge door (6) is movably connected to the discharge port.

2. A single-shaft double-layer paddle mixer according to claim 1, characterized in that: The shaft sleeve (3) is movably sleeved on the rotating shaft (2), a plurality of connecting rods (4) are evenly distributed along the circumference of the rotating shaft (2), and a plurality of limiting members for limiting the sliding of the shaft sleeve (3) relative to the rotating shaft (2) are also provided on the rotating shaft (2).

3. A single-shaft double-layer paddle mixer according to claim 2, characterized in that: The limiting member comprises a limiting bolt (7), the rotating shaft (2) is provided with a plurality of threaded holes of a size matching the limiting bolt (7), the shaft sleeve (3) is provided with a through hole, and the limiting bolt (7) passes through the through hole and is threadedly connected in the corresponding threaded hole.

4. A single-shaft double-layer paddle mixer according to claim 1, characterized in that: A rotating rod (81) is rotatably provided on the base frame (1) below the discharge port, the rotating rod (81) is fixedly connected to the discharge door (6), a driving piston cylinder (8) is provided on the base frame (1), a piston rod of the driving piston cylinder (8) is drivingly connected to one end of the rotating rod (81), a connecting rod is provided on the base frame (1), and the driving piston cylinder (8) drives the rotating rod (81) to rotate through the connecting rod to open / close the discharge door (6).

5. The single-shaft double-layer paddle mixer according to claim 1, characterized in that: The two ends of the rotating shaft (2) respectively pass through the two side walls of the base frame (1); one end of the rotating shaft (2) is connected to a bearing seat, and the other end is connected to a driving motor (21) in a transmission manner; through holes with a hole diameter larger than the outer diameter of the rotating shaft (2) are provided on the two side walls of the base frame (1); a sealing sleeve (91) for sealing the gap between the rotating shaft (2) and the through hole is movably sleeved on the rotating shaft (2); an annular protrusion (92) is fixedly provided on the outer wall of the sealing sleeve (91); the protrusion (92) is detachably connected to the outer wall of the base frame (1); a groove is provided on one end of the sealing sleeve (91) away from the base frame (1); a first sealing ring (93) is movably sleeved on the rotating shaft (2) in the groove; and a sealing cover (94) for limiting the sliding of the first sealing ring (93) is also connected to the sealing sleeve (91).

6. A single-shaft double-layer paddle mixer according to claim 5, characterized in that: The first sealing ring (93) is provided with inclined guide surfaces (931) at both ends of the outer side, and a plug-in block for inserting into the groove is fixedly provided on the side of the sealing cover (94) close to the first sealing ring (93), and a side of the plug-in block close to the first sealing ring (93) and the inner bottom wall of the groove are respectively provided as inclined surfaces that fit with the corresponding guide surfaces (931).

7. A single-shaft double-layer paddle mixer according to claim 5, characterized in that: The protrusion (92) is bolted to the outer wall of the base frame (1), and a second sealing ring (10) is provided on the sealing sleeve (91) between the protrusion (92) and the base frame (1) and the coaxial sleeve (3).

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