Main shaft mechanical seal device of food manufacturing machine

Abstract

The utility model discloses a food manufacturing machinery main shaft mechanical seal device which comprises a main shaft rod, an inner ring is installed on the outer wall of the main shaft rod, a first movable ring is fixedly installed on one side of the inner ring, a second movable ring is installed on one side of the first movable ring, and an elastic extrusion ring is installed on the outer wall of the first movable ring in an extrusion mode. And one side of the elastic extrusion ring is fixedly connected with a baffle ring, and one side of the baffle ring is fixedly connected with a fixed outer ring. According to the main shaft mechanical seal device of the food manufacturing machine, the static ring and the movable ring are subjected to extrusion sealing through the arrangement of the elastic extrusion ring, and the elastic extrusion ring is of an elastic structure, so that when the main shaft rod drives the first movable ring to rotate, the elastic extrusion ring and the first movable ring are attached and sealed all the time; and lubricating oil is dripped through the oil hole to form an oil film on the contact surface of the elastic extrusion ring and the movable ring I, so that the friction damage between the static ring and the movable ring is reduced while the sealing is improved, and the sealing use effect of the main shaft mechanical seal device of the food manufacturing machinery is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of food manufacturing machinery, in particular to a main shaft sealing device of a food manufacturing machinery. Background Art

[0002] Food machinery refers to mechanical equipment and devices used in the process of processing food raw materials into food (or semi-finished products). Food machinery can be mainly divided into two categories: food processing machinery and packaging equipment. In food manufacturing, stirring devices are often used to stir and mix food raw materials. The stirring device drives the stirring paddle through the main shaft to stir the materials. In order to avoid internal material leakage during installation and use, the main shaft needs to be used in conjunction with the main shaft machine seal structure.

[0003] The commonly used spindle mechanical sealing device usually sets the dynamic ring and the static ring on the outside of the spindle for use, and the dynamic ring is fixed to the spindle, and the static ring is fixed to the mechanical device. As a result, when the spindle drives the dynamic ring to rotate, friction will be generated between the dynamic ring and the static ring. In order to ensure the seal between the dynamic ring and the static ring, a sealing ring is usually added between the two, which makes the sealing ring prone to wear due to friction. The worn sealing ring will affect the seal and cause material leakage. Therefore, it is necessary to propose a spindle mechanical sealing device for food manufacturing machinery. Utility Model Content

[0004] The utility model aims to provide a food manufacturing machinery main shaft mechanical seal device to solve the problem that the sealing ring wear affects the sealing effect of the mechanical seal proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a food manufacturing machinery spindle sealing device, comprising a spindle rod, an inner ring is installed on the outer wall of the spindle rod, and a dynamic ring one is fixedly installed on one side of the inner ring, a dynamic ring two is installed on one side of the dynamic ring one, an elastic extrusion ring is extruded and installed on the outer wall of the dynamic ring one, and a baffle ring is fixedly connected to one side of the elastic extrusion ring, a fixed outer ring is fixedly connected to one side of the baffle ring, and a connecting block is fixedly connected to the inner wall of the fixed outer ring.

[0006] Preferably, a bearing is installed on the outer wall of the main shaft rod, and a retaining ring is welded on the outer wall of the bearing, and a fixing screw is installed on the internal thread of the inner ring, and the inner ring is fixed to the outer wall of the main shaft rod by the fixing screw.

[0007] Preferably, mounting studs are installed at equal distances inside one side of the moving ring 2, and the mounting studs are threadedly installed inside the inner ring. The moving ring 2 is fixed to the inner ring through the mounting studs, and mounting studs are also installed on one side of the moving ring 1.

[0008] Preferably, the moving ring 1 is fixedly installed with the inner ring through mounting studs, and a sealing ring is fixedly connected to one side of the moving ring 1, the sealing ring is extruded and arranged on one side of the moving ring 2, and the moving ring 1 is sealed and installed with the moving ring 2 through the sealing ring.

[0009] Preferably, the baffle rings are symmetrically arranged on both sides of the fixed outer ring, and the elastic extrusion ring is fixedly connected to the fixed outer ring through the baffle ring, the elastic extrusion ring is extruded on the outer wall of the moving ring, and the elastic extrusion ring is an elastic structure as a whole.

[0010] Preferably, an oil hole is opened on the top of the fixed outer ring, and the oil hole is vertically arranged between the elastic extrusion rings, the internal movability of the connecting block is connected to the limiting column, and the bottom end of the limiting column is fixedly connected to the extrusion block, and a spring is installed on the top of the extrusion block.

[0011] Preferably, the spring is fixedly installed between the connecting block and the extrusion block, and the extrusion block is extruded on the top of one side of the elastic extrusion ring. The extrusion block is elastically installed on the bottom of the connecting block through the spring, and the connecting block and the extrusion block are equidistantly arranged on the inner wall of the fixed outer ring.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the food manufacturing machinery main shaft sealing device;

[0013] 1. Through the setting of the elastic extrusion ring, the static ring and the dynamic ring are squeezed and sealed. Since the elastic extrusion ring is an elastic structure, when the main shaft rod drives the dynamic ring to rotate, the elastic extrusion ring is always in close contact with the dynamic ring, and the lubricating oil is dripped through the oil hole to form an oil film on the contact surface of the elastic extrusion ring and the dynamic ring, which increases the sealing and reduces the friction damage between the static ring and the dynamic ring, thereby ensuring the sealing effect of the main shaft sealing device of the food manufacturing machinery;

[0014] 2. The inner ring is fixed to the outside of the main shaft by fixing screws, so that the moving rings 1 and 2 can be installed conveniently, so that the whole machine seal device can be installed on the outside of the main shaft for use. At the same time, the machine seal device can be disassembled and repaired conveniently by removing the installation studs and fixing screws, thereby increasing the practicality of the food manufacturing machinery main shaft machine seal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the position structure of the second moving ring and the fixed outer ring of the utility model;

[0017] Figure 3 It is a schematic diagram of the split structure of the inner ring and the moving ring 1 of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the elastic extrusion ring of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the extrusion block of the utility model.

[0020] In the figure: 1. main shaft rod; 2. bearing; 3. retaining ring; 4. inner ring; 5. fixing screw; 6. moving ring 1; 7. sealing ring; 8. moving ring 2; 9. mounting stud; 10. connecting block; 11. elastic extrusion ring; 12. baffle ring; 13. fixed outer ring; 14. oil hole; 15. limit column; 16. spring; 17. extrusion block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1:

[0023] See also Figure 1-5 The utility model provides a technical solution: a food manufacturing machine spindle sealing device, comprising a spindle rod 1, an inner ring 4 is installed on the outer wall of the spindle rod 1, and a moving ring 6 is fixedly installed on one side of the inner ring 4, a moving ring 2 8 is installed on one side of the moving ring 6, an elastic extrusion ring 11 is extruded and installed on the outer wall of the moving ring 6, and a baffle ring 12 is fixedly connected to one side of the elastic extrusion ring 11;

[0024] The baffle ring 12 is symmetrically arranged on both sides of the fixed outer ring 13, and the elastic extrusion ring 11 is fixedly connected to the fixed outer ring 13 through the baffle ring 12. The elastic extrusion ring 11 is extruded on the outer wall of the moving ring 16, and the elastic extrusion ring 11 is an elastic structure as a whole. One side of the baffle ring 12 is fixedly connected to the fixed outer ring 13, and the inner wall of the fixed outer ring 13 is fixedly connected to the connecting block 10. The top of the fixed outer ring 13 is provided with an oil hole 14, and the oil hole 14 is vertically arranged between the elastic extrusion rings 11;

[0025] The connection block 10 is internally movably connected to the limiting column 15, and the bottom end of the limiting column 15 is fixedly connected to the extrusion block 17, and the top of the extrusion block 17 is installed with a spring 16, and the spring 16 is fixedly installed between the connection block 10 and the extrusion block 17, and the extrusion block 17 is extruded and arranged on the top of one side of the elastic extrusion ring 11, and the extrusion block 17 is elastically installed on the bottom of the connection block 10 through the spring 16, and the connection block 10 and the extrusion block 17 are evenly arranged on the inner wall of the fixed outer ring 13;

[0026] Since the elastic extrusion ring 11 is an elastic structure, when the main shaft rod 1 drives the dynamic ring 6 to rotate, the elastic extrusion ring 11 is always in close contact with the dynamic ring 6 for sealing, and lubricating oil is dripped through the oil hole 14 to form an oil film on the contact surface of the elastic extrusion ring 11 and the dynamic ring 6, thereby increasing the sealing and reducing the friction damage between the static ring and the dynamic ring, thereby ensuring the sealing effect of the main shaft sealing device of the food manufacturing machinery;

[0027] The extrusion block 17 is elastically installed with the connection block 10 through the spring 16, so that the extrusion block 17 is conveniently squeezed on the top of the elastic extrusion ring 11 by the elasticity of the spring 16, thereby facilitating the extrusion sealing effect between the elastic extrusion ring 11 and the dynamic ring 16. At the same time, the setting of the limiting column 15 facilitates the limiting of the extrusion block 17, so as to facilitate the vertical movement of the extrusion block 17 for use;

[0028] Example 2:

[0029] Based on Example 1, in order to facilitate the installation and disassembly of the spindle seal device, please refer to Figure 3 and Figure 4 A bearing 2 is installed on the outer wall of the main shaft rod 1, and a retaining ring 3 is welded on the outer wall of the bearing 2. A fixing screw 5 is installed on the internal thread of the inner ring 4, and the inner ring 4 is fixed to the outer wall of the main shaft rod 1 by the fixing screw 5.

[0030] Mounting studs 9 are installed at equal distances inside one side of the moving ring 2 8, and the mounting studs 9 are threadedly installed inside the inner ring 4, the moving ring 2 8 is fixedly installed with the inner ring 4 through the mounting studs 9, and the moving ring 1 6 is also installed with a mounting stud 9 on one side, the moving ring 1 6 is fixedly installed with the inner ring 4 through the mounting studs 9, and a sealing ring 7 is fixedly connected to one side of the moving ring 1 6, the sealing ring 7 is extruded and arranged on one side of the moving ring 2 8, and the moving ring 1 6 is sealed and installed with the moving ring 2 8 through the sealing ring 7;

[0031] The fixing screw 5 fixes the inner ring 4 to the outside of the main shaft 1, which makes it convenient to install the moving ring 1 6 and the moving ring 2 8, so that the machine seal device can be installed as a whole on the outside of the main shaft 1 for use. At the same time, the machine seal device can be disassembled and repaired by disassembling the installation stud 9 and the fixing screw 5, thereby increasing the practicality of the food manufacturing machinery main shaft machine seal device;

[0032] The clamping ring 3 is fixed to the stirring device, and the inner wall of the bearing 2 is fixed to the main shaft 1, so that the main shaft 1 can be rotated inside the stirring device through the bearing 2. The outer wall of the fixed outer ring 13 is flush with the outer wall of the clamping ring 3, so that when the mechanical sealing device is installed, it is convenient to install the mechanical sealing device in the hole of the stirring device. At the same time, the outer ring 13 is fixed by clamping, so that the elastic extrusion ring 11 and other structures are fixed to the stirring device to form a static ring.

[0033] Working principle: When using the food manufacturing machine spindle sealing device, the inner ring 4 is installed on the outside of the spindle rod 1 through the fixing screws 5, and then the moving ring 1 6 and the moving ring 2 8 are aligned and squeezed on the outside of the inner ring 4, and the moving ring 1 6 and the moving ring 2 8 are installed on both sides of the inner ring 4 through the installation studs 9, and then the fixed outer ring 13 and other structures are sleeved on the outside of the moving ring 1 6, and the elastic extrusion ring 11 is squeezed and sleeved on the outside of the moving ring 1 6;

[0034] Lubricating oil is dripped through the oil hole 14 to form an oil film at the connection between the elastic extrusion ring 11 and the moving ring 16, and then the bearing 2 is squeezed and clamped on the outside of the main shaft 1, and finally the fixed outer ring 13 and the clamping ring 3 are aligned with the mounting hole of the food stirring device for clamping and installation, so that the fixed outer ring 13 and the clamping ring 3 are squeezed and fixed inside the food stirring device. When the main shaft 1 is rotated for use, the main shaft 1 drives the inner ring 4 and the moving ring 16 to rotate;

[0035] At the same time, the main shaft 1 is rotated inside the stirring device through the bearing 2, and because the fixed outer ring 13 and the inner wall of the stirring device are clamped and fixed, when the dynamic ring 6 rotates, the dynamic ring 6 and the elastic extrusion ring 11 move relative to each other, and because the elastic extrusion ring 11 is an elastic structure, it is convenient to fit and seal the elastic extrusion ring 11 and the dynamic ring 6, and the sealing effect of the dynamic ring 6 and the elastic extrusion ring 11 is increased through the extrusion of the extrusion block 17, and the friction damage between the dynamic ring 6 and the elastic extrusion ring 11 is reduced due to the formation of the oil film.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A food manufacturing machine spindle sealing device, comprising a spindle rod (1), characterized in that: An inner ring (4) is installed on the outer wall of the main shaft rod (1), and a movable ring 1 (6) is fixedly installed on one side of the inner ring (4), a movable ring 2 (8) is installed on one side of the movable ring 1 (6), an elastic extrusion ring (11) is extruded and installed on the outer wall of the movable ring 1 (6), and a baffle ring (12) is fixedly connected to one side of the elastic extrusion ring (11), a fixed outer ring (13) is fixedly connected to one side of the baffle ring (12), and a connecting block (10) is fixedly connected to the inner wall of the fixed outer ring (13).

2. A food manufacturing machinery main shaft sealing device according to claim 1, characterized in that: A bearing (2) is installed on the outer wall of the main shaft (1), and a retaining ring (3) is welded to the outer wall of the bearing (2); a fixing screw (5) is installed on the internal thread of the inner ring (4), and the inner ring (4) is fixedly installed on the outer wall of the main shaft (1) by the fixing screw (5).

3. A food manufacturing machinery main shaft sealing device according to claim 1, characterized in that: Mounting studs (9) are installed at equal distances inside one side of the moving ring 2 (8), and the mounting studs (9) are threadedly installed inside the inner ring (4). The moving ring 2 (8) is fixedly installed with the inner ring (4) through the mounting studs (9), and a mounting stud (9) is also installed on one side of the moving ring 1 (6).

4. A food manufacturing machinery main shaft sealing device according to claim 1, characterized in that: The movable ring 1 (6) is fixedly mounted on the inner ring (4) via a mounting stud (9), and a sealing ring (7) is fixedly connected to one side of the movable ring 1 (6), the sealing ring (7) is extruded and arranged on one side of the movable ring 2 (8), and the movable ring 1 (6) is sealedly mounted on the movable ring 2 (8) via the sealing ring (7).

5. The food manufacturing machinery main shaft sealing device according to claim 1, characterized in that: The baffle ring (12) is symmetrically arranged on both sides of the fixed outer ring (13), and the elastic extrusion ring (11) is fixedly connected to the fixed outer ring (13) through the baffle ring (12). The elastic extrusion ring (11) is extruded on the outer wall of the moving ring (6), and the elastic extrusion ring (11) is an elastic structure as a whole.

6. A food manufacturing machinery main shaft sealing device according to claim 1, characterized in that: An oil hole (14) is provided at the top of the fixed outer ring (13), and the oil hole (14) is vertically arranged between the elastic extrusion rings (11); the interior of the connection block (10) is movably connected to a limiting column (15), and the bottom end of the limiting column (15) is fixedly connected to an extrusion block (17); a spring (16) is installed at the top of the extrusion block (17).

7. A food manufacturing machinery main shaft sealing device according to claim 6, characterized in that: The spring (16) is fixedly installed between the connecting block (10) and the extrusion block (17), and the extrusion block (17) is extruded and arranged on the top of one side of the elastic extrusion ring (11). The extrusion block (17) is elastically installed on the bottom of the connecting block (10) through the spring (16), and the connecting block (10) and the extrusion block (17) are evenly arranged on the inner wall of the fixed outer ring (13) at an equal distance.

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