Lower shaft connecting structure in livestock manure fermentation equipment

Abstract

The utility model relates to a lower shaft connecting structure in livestock and poultry manure fermentation equipment, which comprises a middle shaft pipe and a lower shaft pipe, the middle shaft pipe is fixedly connected with an upper flange, the lower shaft pipe is fixedly connected with a lower flange, the lower flange is fixedly connected with an insertion pipe upwards extending into the middle shaft pipe, and mutually meshed racks are arranged between the upper flange and the lower flange in a circumferential array mode. The section of the rack is triangular, bolt holes which are matched and aligned with the rack are formed in the upper flange and the lower flange, and bolts are connected into the bolt holes. According to the lower shaft connecting structure in the livestock and poultry manure fermentation equipment, when the middle shaft pipe is hoisted, the insertion pipe is inserted into the middle shaft pipe to force the middle shaft pipe to be automatically coaxial with the lower shaft pipe, and meanwhile, triangular-section racks matched with the upper flange and the lower flange are automatically rotated and engaged during falling, so that bolt holes in the upper flange and the lower flange are automatically aligned; the problems that the connecting flanges are not easy to align in the hoisting process of the middle shaft tube during splicing, and the splicing efficiency is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shaft connecting structure, especially a lower shaft connecting structure in livestock and poultry manure fermentation equipment. BACKGROUND

[0002] Under modernization breeding conditions, manure treatment is a key environmental protection technology, otherwise environmental pollution will be caused. Manure is relatively fine in texture and contains more organic matter and nitrogen, phosphorus and potassium nutrients. Parasites and their eggs and some infectious bacteria in livestock and poultry manure are fully inactivated through the process of composting. After the livestock and poultry manure is harmlessly treated, it can be applied to crops.

[0003] The existing livestock and poultry manure fermentation equipment usually adopts single-shaft pipe large-blade form to stir and aerate livestock and poultry manure in the fermentation tank. The stirring shaft pipe is integrally formed or welded into shape. The larger stirring shaft is not easy to hoist. The middle and lower two-section shafts are assembled. During the hoisting process of the middle-section shaft, the connecting flanges are not easy to align, which affects the assembly efficiency. SUMMARY

[0004] The utility model discloses a lower shaft connecting structure in livestock and poultry manure fermentation equipment, which is used to solve the problem that the existing lower shaft connecting structure in livestock and poultry manure fermentation equipment adopts middle and lower two-section shaft assembly, the connecting flanges are not easy to align during the hoisting process of the middle-section shaft, and the assembly efficiency is affected.

[0005] In order to solve the above problems, the utility model provides a lower shaft connecting structure in livestock and poultry manure fermentation equipment, which comprises a middle shaft pipe and a lower shaft pipe. The middle shaft pipe is connected to the top of the lower shaft pipe. The middle shaft pipe is fixedly connected with an upper flange. The lower shaft pipe is fixedly connected with a lower flange. The lower flange is fixedly connected with a pipe that extends upward into the middle shaft pipe. A gear rack that is arranged in a circumferential array and interlocked is arranged between the upper flange and the lower flange. The cross section of the gear rack is triangular. A bolt hole that is aligned with the gear rack is arranged on the upper flange and the lower flange. A bolt is connected in the bolt hole.

[0006] The lower shaft connecting structure in livestock and poultry manure fermentation equipment provided by the utility model also has the following technical features:

[0007] Further, the bottom of the middle shaft pipe is a trumpet mouth. The upper flange is fixedly connected to the bottom of the trumpet mouth. The pipe extends into the middle shaft pipe at the top of the trumpet mouth.

[0008] Further, the bolt hole is arranged in the middle of the gear rack of the upper flange. The number of the bolt holes is consistent with the number of the gear racks of the upper flange.

[0009] Further, the lower flange is provided with a sealing groove around the pipe. A sealing strip is installed in the sealing groove. A sealing ring is fixedly connected to the corresponding position of the sealing groove of the upper flange. The sealing ring abuts against the sealing strip.

[0010] Further, the upper flange and the middle shaft pipe are connected with the add-on plate, and the lower flange and the lower shaft pipe are connected with the add-on plate.

[0011] The livestock and poultry manure fermentation equipment middle and lower shaft connecting structure has the advantages that the middle shaft pipe is inserted into the middle shaft pipe when hoisting, so that the middle shaft pipe is automatically coaxial with the lower shaft pipe, and the triangular cross-section rack matched with the upper flange and the lower flange is automatically rotated and engaged when falling, so that the bolt holes on the upper and lower flanges are automatically aligned, and the problem that the connecting flanges are not easy to align in the hoisting process during assembly, affecting the assembly efficiency, is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The livestock and poultry manure fermentation equipment middle and lower shaft connecting structure is a front view of a sectional shaft measurement schematic diagram of the livestock and poultry manure fermentation equipment middle and lower shaft connecting structure.

[0013] Figure 2 The livestock and poultry manure fermentation equipment middle and lower shaft connecting structure is a front view of a sectional shaft measurement schematic diagram of the livestock and poultry manure fermentation equipment middle and lower shaft connecting structure. Figure 1 The livestock and poultry manure fermentation equipment middle and lower shaft connecting structure is a front view of a sectional shaft measurement schematic diagram of the livestock and poultry manure fermentation equipment middle and lower shaft connecting structure.

[0014] Figure 3 The livestock and poultry manure fermentation equipment middle and lower shaft connecting structure is a front view of a sectional shaft measurement schematic diagram of the livestock and poultry manure fermentation equipment middle and lower shaft connecting structure.

[0015] Figure 4 The livestock and poultry manure fermentation equipment middle and lower shaft connecting structure is a front view of a sectional shaft measurement schematic diagram of the livestock and poultry manure fermentation equipment middle and lower shaft connecting structure.

[0016] (1-middle shaft pipe, 2-lower shaft pipe, 3-upper flange, 4-lower flange, 5-insert pipe, 6-rack, 7-bolt hole, 8-bolt, 9-flared mouth, 10-sealing groove, 11-sealing strip, 12-sealing ring, 13-add-on plate) DETAILED DESCRIPTION

[0017] The livestock and poultry manure fermentation equipment middle and lower shaft connecting structure will be described in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0018] As Figures 1 to 4The embodiment of the livestock and poultry manure fermentation equipment middle lower shaft connecting structure shown in the utility model, the livestock and poultry manure fermentation equipment middle lower shaft connecting structure includes middle shaft pipe 1 and lower shaft pipe 2, the middle shaft pipe 1 is connected at the top of the lower shaft pipe 2, the middle shaft pipe 1 is fixedly connected with upper flange 3, the lower shaft pipe 2 is fixedly connected with lower flange 4, the lower flange 4 is fixedly connected with the pipe 5 that goes up into the middle shaft pipe 1, the upper flange 3 and the lower flange 4 are equipped with the gear rack 6 that is arranged in a circumferential array and is mutually engaged between them, the cross section of the gear rack 6 is triangular, the upper flange 3 and the lower flange 4 are equipped with bolt hole 7 that is aligned with the gear rack 6, the bolt hole 7 is connected with bolt 8 in it.

[0019] Specifically, when the middle shaft pipe 1 is hoisted and installed, the hoisting point is usually not concentric with the middle shaft pipe 1, which causes hoisting inclination, so that the pipe 5 on the lower flange 4 is inserted into the middle shaft pipe 1, the middle shaft pipe 1 is forced to be coaxial with the lower shaft pipe 2, after being coaxial, the middle shaft pipe 1 continues to fall, when the gear rack 6 of the upper flange 3 contacts with the gear rack 6 on the lower flange 4, the gear rack 6 with triangular cross section rotates and adjusts in the process of falling engagement, so that the bolt hole 7 on the flange is automatically aligned, the bolt 8 is screwed into the bolt hole 7, and the connection of the middle shaft pipe 1 and the lower shaft pipe 2 is completed.

[0020] In an embodiment of the present application, preferably, the bottom of the middle shaft pipe 1 is a horn mouth 9, the upper flange 3 is fixedly connected at the bottom of the horn mouth 9, the pipe 5 extends into the middle shaft pipe 1 at the top of the horn mouth 9, and the enlarged bottom of the middle shaft pipe 1 forms the horn mouth 9 to facilitate the alignment of the pipe 5 with the middle shaft pipe 1.

[0021] In an embodiment of the present application, preferably, the bolt hole 7 is arranged in the middle of the gear rack 6 of the upper flange 3, the number of the bolt hole 7 is consistent with the number of the gear rack 6 of the upper flange 3, which facilitates the automatic alignment of the bolt hole 7 after the engagement of the gear rack 6.

[0022] In an embodiment of the present application, preferably, the lower flange 4 is provided with a sealing groove 10 around the pipe 5, a sealing strip 11 is installed in the sealing groove 10, the upper flange 3 is fixedly connected with a sealing ring 12 at the corresponding position of the sealing groove 10, the sealing ring 12 abuts against the sealing strip 11, and is used for sealing when the middle shaft pipe 1 and the lower shaft pipe 2 are connected, so as to avoid air leakage of the aeration channel and prevent the fermentation liquid from entering the aeration channel.

[0023] In an embodiment of the present application, preferably, the upper flange 3 and the middle shaft pipe 1 and the lower flange 4 and the lower shaft pipe 2 are both connected with a web plate 13, which is used for strengthening the connection between the flange and the shaft pipe.

[0024] In summary, the lower shaft connection structure in the livestock and poultry manure fermentation equipment of the above embodiments of this utility model specifically addresses the following: During the hoisting and installation of the central shaft tube 1, the hoisting tilt occurs because the hoisting point is usually not concentric with the central shaft tube 1. This causes the insertion tube 5 on the lower flange 2 to be inserted into the central shaft tube 1 through the flared end 9, forcing the central shaft tube 1 and the lower shaft tube 2 to be coaxial. After coaxiality, the central shaft tube 1 continues to fall. When the rack 6 on the upper flange 3 contacts the rack 6 on the lower flange 4, the triangular cross-section rack 6 will automatically rotate and adjust during the engagement process, thereby automatically aligning the bolt holes 7 on the flange. Simultaneously, the sealing ring 12 on the upper flange 3 engages with the sealing groove 10 on the lower flange 4 and presses the sealing strip 11 to complete the sealing of the aeration channel. The bolt 8 is then inserted into the bolt hole 7 and tightened to complete the connection between the central shaft tube 1 and the lower shaft tube 2. This device uses the flared mouth 9 in conjunction with the insertion tube 5 to force the central shaft tube 1 and the lower shaft tube 2 to be coaxial. The interlocking triangular rack 6 automatically aligns the bolt holes 7 of the upper flange 3 and the lower flange 4, allowing the central shaft tube 1 and the lower shaft tube 2 to be quickly spliced. At the same time, due to the action of the insertion tube 5 in the central shaft tube 1 during disassembly, the central shaft tube 1 will not tip over, making it safer and more convenient.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lower shaft connection structure in a livestock and poultry manure fermentation device, characterized in that, The device includes a central tube and a lower tube. The central tube is connected to the top of the lower tube. The central tube is fixedly connected to an upper flange, and the lower tube is fixedly connected to a lower flange. An insert tube extending upward into the central tube is fixedly connected to the lower flange. Between the upper and lower flanges, there are interlocking racks arranged in a circumferential array. The racks have a triangular cross-section. The upper and lower flanges have bolt holes that align with the racks, and bolts are connected to the bolt holes.

2. The lower shaft connection structure in the livestock and poultry manure fermentation equipment according to claim 1, characterized in that: The bottom of the central tube is a flared opening, the upper flange is fixedly connected to the bottom of the flared opening, and the insertion tube extends into the central tube at the top of the flared opening.

3. The lower shaft connection structure in the livestock and poultry manure fermentation equipment according to claim 2, characterized in that: The bolt holes are located in the middle of the rack of the upper flange, and the number of bolt holes is the same as the number of racks of the upper flange.

4. The lower shaft connection structure in the livestock and poultry manure fermentation equipment according to claim 3, characterized in that: The lower flange has a sealing groove around the insertion tube, and a sealing strip is installed in the sealing groove. The upper flange has a sealing ring fixedly connected to the corresponding position of the sealing groove, and the sealing ring abuts against the sealing strip.

5. The lower shaft connection structure in the livestock and poultry manure fermentation equipment according to claim 4, characterized in that: A gusset plate is connected between the upper flange and the central shaft tube, and between the lower flange and the lower shaft tube.

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