Sealing assembly for transmission shaft of grain pulping machine

Abstract

The utility model discloses a transmission shaft sealing assembly of a grain pulping machine, the transmission shaft sealing assembly is arranged between a pulp cavity and a driving motor, the transmission shaft sealing assembly is composed of an annular sealing cavity cover, an annular sealing piece and an annular supporting framework, and the annular sealing cavity cover is sleeved on a transmission shaft of the driving motor in a sealing mode. The annular sealing cavity cover and a platform on the upper portion of the driving motor form an annular sealing piece installation cavity, the annular sealing piece is arranged on the annular supporting framework and installed in the annular sealing piece installation cavity along with the annular supporting framework, and the annular sealing piece is provided with a plurality of forked bodies matched with the annular sealing cavity cover in a pressing and sealing mode. A sealing cavity is formed between every two adjacent forked bodies. According to the utility model, a plurality of sealing cavities are formed between the sealing element and the sealing cavity cover through the plurality of forked bodies on the sealing element, so that the path for bean dregs and serous fluid to enter the transmission shaft bearing of the driving motor is effectively prolonged, and further, the forked bodies cannot deform to cause the phenomena of slag leakage and liquid leakage.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of grain pulping machine, concretely relates to a grain pulping machine transmission shaft sealing assembly. BACKGROUND

[0002] The driving motor in the existing soybean milk machine provides the pulping power source to the pulping assembly through the transmission shaft, the pulping assembly is arranged in the slurry in the pulping cavity, in order to reduce the risk of leakage of liquid and residue on the side of the driving motor transmission shaft to prolong the service life of the driving motor, the sealing between the transmission shaft and the pulping cavity needs to be effectively guaranteed, so that the effect of preventing leakage of liquid and residue and protecting the driving motor can be achieved. The sealing assembly in the current soybean milk machine is directly arranged between the transmission shaft and the pulping cavity, and the sealing assembly directly contacts with the transmission, the transmission shaft rotates and generates heat by friction with the sealing assembly during the use of the soybean milk machine, a small amount of soybean residue enters the gap between the sealing assembly and the transmission shaft, with the continuous rotation of the transmission shaft, the soybean residue and the slurry in the pulping cavity gradually penetrate into the transmission shaft bearing through the sealing assembly, finally leading to the motor being stuck, and affecting the service life of the driving motor. SUMMARY

[0003] The utility model solves the technical problem and provides a kind of grain pulping machine transmission shaft sealing assembly with good sealing effect and long service life.

[0004] The utility model discloses a kind of grain pulping machine transmission shaft sealing assemblies, the transmission shaft sealing assembly is arranged between slurry cavity and driving motor, it is characterized by: the transmission shaft sealing assembly is made of annular sealing cavity cover, annular sealing piece and annular support framework, wherein annular sealing cavity cover is sealed and is set on the driving motor transmission shaft, and the annular sealing cavity cover and the upper platform of driving motor form annular sealing piece installation cavity, annular sealing piece is set on annular support framework and is installed in annular sealing piece installation cavity along with annular support framework, annular sealing piece is equipped with multiple bifurcations and annular sealing cavity cover is pressed and sealed cooperation, the bifurcation between adjacent forms sealing cavity.

[0005] Further limit, the annular sealing piece and annular support framework are integrally vulcanized and formed.

[0006] Further limit, the annular sealing piece is set on the upper portion of annular support framework with cross section being similar to L type, and the inner edge end of the annular sealing piece forms the structure of everted edge and is clamped to the inner edge end of annular support framework, the annular sealing piece on the inner edge end adjacent to the annular sealing piece is equipped with at least two bifurcations and annular sealing cavity cover is pressed and sealed cooperation, the outer edge end of annular sealing piece forms the structure of everted edge and is clamped to the outer edge end of annular support framework, and the outer edge end of the annular sealing piece is sealed and cooperates with the bottom sealing cover plate of slurry cavity.

[0007] Further limit, the annular sealing cavity cover is composed of a vertical sleeve and an annular transverse partition plate arranged at the top of the vertical sleeve, wherein the vertical sleeve is sealingly sleeved on the transmission shaft, the annular sealing member is provided with a bifurcated body one, a bifurcated body two and a bifurcated body three on the inner edge end adjacent to the annular sealing member, wherein the bifurcated body one is in an inverted bell mouth structure, and the free end of the bifurcated body one is tightly sealed on the bottom of the annular transverse partition plate, the bifurcated body two is in a bell mouth structure, and the free end of the bifurcated body two is tightly sealed on the outer side wall of the vertical cylinder, the bifurcated body three is in an inverted bell mouth structure, and the free end of the bifurcated body three is tightly sealed on the outer side wall of the vertical cylinder, and the bifurcated body one and the bifurcated body two form a sealing cavity one, and the bifurcated body two and the bifurcated body three form a sealing cavity two.

[0008] Further limit, the vertical sleeve is sealingly sleeved on the transmission shaft of the driving motor through interference fit.

[0009] Further limit, the annular support framework is an annular metal framework, and the inner edge end of the annular metal framework is upturned to form a clamping end for fixing the annular sealing member.

[0010] Further limit, at least one sealing rib is arranged on the outer side of the annular sealing member and abuts against the upper platform of the driving motor.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects: the utility model moves the sealing surface of the sealing member to the outer side of the transmission shaft, a plurality of bifurcated bodies on the sealing member form a plurality of sealing cavities between the sealing member and the sealing cavity cover, thereby effectively prolonging the path of the bean dregs and the slurry into the bearing of the transmission shaft of the driving motor, and the sealing cavities formed between the adjacent bifurcated bodies on the sealing member and the sealing cavity cover prevent the bifurcated bodies from being compressed under the pressure of the leakage side, thereby preventing the bifurcated bodies from deforming and causing the leakage of the dregs and the slurry. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the use state diagram of the utility model.

[0013] Figure 2 is Figure 1 the local structure schematic diagram.

[0014] Figure 3 is Figure 2 the local enlarged view of A in

[0015] Figure 4 is the structure schematic diagram of the transmission shaft with the sealing assembly.

[0016] Figure 5 is the structure schematic diagram of the sealing assembly.

[0017] Figure 6 is the structure schematic diagram of the annular sealing cavity cover.

[0018] In the figure: 1-slurry cavity, 2-driving motor, 3-annular sealing cavity cover, 4-annular sealing element, 5-annular support framework, 6-transmission shaft, 7-annular sealing element installation cavity, 8-bifurcated body one, 9-sealing cover plate, 10-vertical sleeve, 11-annular transverse partition plate, 12-bifurcated body two, 13-bifurcated body three. DETAILED DESCRIPTION

[0019] The specific technical scheme of the utility model is described in detail in combination with the drawings.

[0020] As Figures 1-6 shown, the utility model discloses a kind of grain grinders transmission shaft sealing assemblies, which is arranged between slurry cavity 1 and driving motor 2, transmission shaft sealing assembly is by annular sealing cavity cover 3, annular sealing element 4 and annular support framework 5 is formed, wherein annular sealing cavity cover 3 sealing sleeve is arranged on driving motor 2 transmission shaft 6, and the annular sealing cavity cover 3 and the upper platform of driving motor 2 form annular sealing element installation cavity 7, annular sealing element 4 is arranged on annular support framework 5 and is installed in annular sealing element installation cavity 7 with annular support framework 5, annular sealing element 4 is equipped with multiple bifurcated bodies and annular sealing cavity cover 3 is pressed tightly and sealed, and sealing cavity is formed between adjacent bifurcated bodies.

[0021] Annular sealing element 4 and annular support framework 5 of the utility model are integrally vulcanized and formed.

[0022] Annular sealing element 4 of the utility model is arranged on the upper portion of annular support framework 5 with cross section being L-shaped, and the inner edge end of the annular sealing element 4 forms an outward flange structure and is clamped in the inner edge end of the annular support framework 5, at least two bifurcated bodies 8 are arranged on the annular sealing element 4 adjacent to the inner edge end of the annular sealing element 4 and are pressed tightly and sealed with the annular sealing cavity cover 3, the outer edge end of the annular sealing element 4 forms an outward flange structure and is clamped in the outer edge end of the annular support framework 3, and the outer edge end of the annular sealing element 4 is sealed with the sealing cover plate 9 at the bottom of the slurry cavity 1.

[0023] Annular sealing cavity cover 3 of the utility model is composed of vertical sleeve 10 and annular transverse partition plate 11 arranged at the top of vertical sleeve 10, wherein vertical sleeve 10 is sealingly sleeved on transmission shaft 6, bifurcated body one 8, bifurcated body two 12 and bifurcated body three 13 are arranged on annular sealing element 4 adjacent to the inner edge end of annular sealing element 4, wherein bifurcated body one 8 is in inverted horn mouth structure, and the free end of bifurcated body one 8 is pressed tightly and sealed at the bottom of annular transverse partition plate 11, bifurcated body two 12 is in horn mouth structure, and the free end of bifurcated body two 12 is pressed tightly and sealed on the outer side wall of vertical sleeve 10, bifurcated body three 13 is in inverted horn mouth structure, and the free end of bifurcated body three 13 is pressed tightly and sealed on the outer side wall of vertical sleeve 10, sealing cavity one is formed between bifurcated body one 8 and bifurcated body two 12, and sealing cavity two is formed between bifurcated body two 12 and bifurcated body three 13.

[0024] The vertical sleeve 10 is sealed and set on the transmission shaft 6 by interference fit. The annular support framework 5 is an annular metal framework, and the inner edge end of the annular metal framework is upturned to form a clamping end of the annular sealing element 4.

[0025] The annular sealing element 4 is provided with at least one sealing rib on the outer side, which abuts against the upper platform of the driving motor 2 to form a sealing rib.

[0026] The sealing surface of the sealing element is moved outward to the outside of the transmission shaft, and multiple sealing cavities are formed between the sealing element and the sealing cavity cover by multiple forked bodies on the sealing element, so as to effectively prolong the path of the bean dregs and the slurry into the bearing of the driving motor transmission shaft. At the same time, the sealing cavity is formed between the adjacent forked bodies on the sealing element and the sealing cavity cover, so that the forked bodies cannot be compressed under the pressure of the leakage side, and the forked bodies cannot be deformed to cause the leakage of the dregs and the liquid. During use, the transmission shaft rotates to drive the friction between the sealing cavity cover and the forked bodies of the sealing element to generate heat, the air in the multiple sealing cavities formed between the adjacent forked bodies and the sealing cavity cover expands under the heat, which can further block the deformation of the forked bodies under the pressure of the leakage side, effectively block the leakage of the bean dregs and the slurry, and effectively prolong the service life of the driving motor. The grain grinding machine adopting the sealing structure form of the utility model can still maintain good sealing effect in the continuous cycle heating test with the highest life of 30000 cycles.

[0027] The above shows and describes the basic principles, main features and advantages of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the present application.

Claims

1. A sealing assembly for the drive shaft of a grain mill, wherein the drive shaft sealing assembly is disposed between the slurry chamber and the drive motor, characterized in that: The transmission shaft sealing assembly is composed of an annular sealing cavity cover, an annular sealing member and an annular support framework, wherein the annular sealing cavity cover is sleeved on the drive motor transmission shaft, and the annular sealing cavity cover and the upper platform of the drive motor form an annular sealing member mounting cavity, the annular sealing member is arranged on the annular support framework and is mounted in the annular sealing member mounting cavity together with the annular support framework, a plurality of bifurcated bodies in pressure sealing cooperation with the annular sealing cavity cover are arranged on the annular sealing member, and a sealing cavity is formed between adjacent bifurcated bodies.

2. The grain mill transmission shaft seal assembly of claim 1, wherein: The annular sealing member and the annular support framework are integrally vulcanized and formed.

3. The grain mill transmission shaft seal assembly of claim 1, wherein: The annular sealing member is arranged on the upper part of the annular support framework with a cross-section in the shape of L, the inner edge end of the annular sealing member forms an outward flange structure and is clamped to the inner edge end of the annular support framework, at least two bifurcated bodies in pressure sealing cooperation with the annular sealing cavity cover are arranged on the annular sealing member adjacent to the inner edge end of the annular sealing member, the outer edge end of the annular sealing member forms an outward flange structure and is clamped to the outer edge end of the annular support framework, and the outer edge end of the annular sealing member is in sealing cooperation with the sealing cover plate at the bottom of the slurry cavity.

4. The grain mill transmission shaft seal assembly of claim 3, wherein: The annular sealing cavity cover is composed of a vertical sleeve and an annular transverse partition plate arranged at the top of the vertical sleeve, wherein the vertical sleeve is sleeved on the transmission shaft, the bifurcated body one, the bifurcated body two and the bifurcated body three are arranged on the annular sealing member adjacent to the inner edge end of the annular sealing member, the bifurcated body one is in the shape of an inverted bell mouth structure, the free end of the bifurcated body one is in pressure sealing cooperation with the bottom of the annular transverse partition plate, the bifurcated body two is in the shape of a bell mouth structure, the free end of the bifurcated body two is in pressure sealing cooperation with the outer side wall of the vertical sleeve, the bifurcated body three is in the shape of an inverted bell mouth structure, the free end of the bifurcated body three is in pressure sealing cooperation with the outer side wall of the vertical sleeve, a sealing cavity one is formed between the bifurcated body one and the bifurcated body two, and a sealing cavity two is formed between the bifurcated body two and the bifurcated body three.

5. The grain mill transmission shaft seal assembly of claim 4, wherein: The vertical sleeve is sleeved on the drive motor transmission shaft through interference fit.

6. The grain mill transmission shaft seal assembly of claim 3, wherein: The annular support framework is an annular metal framework, and the inner edge end of the annular metal framework is upturned to form a clamping end for fixing the annular sealing member.

7. The grain mill transmission shaft seal assembly of claim 1, wherein: At least one sealing rib is arranged on the outer side of the annular sealing member and abuts against the upper platform of the drive motor.

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