Spiral main shaft of single-shaft screw press capable of being quickly adjusted and overhauled

Abstract

The utility model discloses a screw main shaft of a single-shaft screw press capable of being rapidly adjusted and overhauled, which comprises a screw main shaft arranged on a rack, the screw main shaft comprises a rotary pushing section and a detachably connected extrusion section, the rotary pushing section comprises a shaft body and a screw blade fixedly arranged on the shaft body, and the extrusion section comprises an accessory; the spiral blade comprises a plurality of blade parts, the screw pitch between the adjacent blade parts on the feeding side is larger than the screw pitch between the adjacent blade parts on the discharging side, the screw pitches are sequentially decreased, the thickness of the blade parts on the discharging side is larger than that of the blade parts on the feeding side, and the thickness is sequentially decreased; through the optimized and improved design of the spiral main shaft, the extrusion section of the spiral main shaft can be independently detached and replaced as an accessory, and accessories with corresponding specifications can be selected for replacement according to different requirements, so that the dehydration requirements of different materials can be met, the dehydration efficiency of the squeezer is improved, and the production cost is reduced. And meanwhile, repair and maintenance after equipment abrasion are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of machine waste resource utilization, in particular to a single-shaft screw press screw main shaft which can be quickly adjusted and repaired. Background Art

[0002] Screw press is a kind of equipment which uses physical extrusion to dehydrate. It is mainly used for drying and dehydrating domestic garbage, kitchen waste, and restaurant waste, as well as dehydrating waste plastic film after cleaning, and dehydrating and compressing screen residue or filter residue in industrial wastewater treatment in papermaking, slaughtering, leather, textile and other industries.

[0003] The traditional screw press has only one spiral blade welded on the spiral main shaft. Wear-resistant alloy is welded on the spiral blade within a certain distance near the outlet side to increase the wear resistance of the spiral blade. The spiral main shaft is in a barrel-shaped screen frame. The barrel-shaped screen frame is longer than the spiral main shaft. The material is pushed forward by the spiral main shaft. When it reaches the end of the spiral main shaft, a material section will be formed under the joint action of the screen frame and the outlet baffle. This section is a high-pressure extrusion section, and the material mainly completes the dehydration process at this position.

[0004] However, if the high-pressure extrusion is too long, the motor will be overloaded and the material cannot be pushed out; if the high-pressure extrusion is too short, the dehydration effect will be poor and the dryness requirements cannot be met.

[0005] In addition, traditional screw presses have poor material adaptability and cumbersome maintenance and overhaul. When the material undergoes significant changes, the dehydration effect or passability of the screw press will have problems. For example, when the material is finely crushed, the press can work normally, but when the material becomes a high-fiber material, the material in the high-pressure extrusion section will clump, and the spiral spindle will have difficulty pushing the material out, and the press current will be overloaded. For another example, when the material contains a lot of bones, shells, porcelain bottles and other substances, the spiral blades at the end of the spiral spindle are severely ground and need to be replaced regularly. The spiral spindle needs to be disassembled as a whole, and then the spiral blades need to be repaired or cut off and welded with new blades, which is cumbersome to maintain and overhaul. Utility Model Content

[0006] In view of the above technical problems in the related art, the utility model proposes a single-shaft screw press screw main shaft that can be quickly adjusted and repaired, which can overcome the above shortcomings of the prior art.

[0007] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0008] A single-shaft screw press screw main shaft capable of rapid adjustment and maintenance;

[0009] The spiral main shaft of the single-shaft screw press comprises a spiral main shaft installed on a frame, the spiral main shaft comprises a rotary push section and a detachably connected extrusion section, the rotary push section comprises a shaft body and a spiral blade fixedly arranged on the shaft body, and the extrusion section comprises accessories; the spiral blade comprises a plurality of blade parts, the pitch between adjacent blade parts on the feed side is greater than the pitch between adjacent blade parts on the discharge side, and the pitch changes in a decreasing manner, the thickness of the blade part on the discharge side is greater than the thickness of the blade part on the feed side, and the thickness changes in a decreasing manner.

[0010] Furthermore, the spiral blade is integrally formed, and the spiral blade is fixedly connected to the shaft body by welding.

[0011] Furthermore, the outer diameter of the spiral main shaft is 500-800 mm, the pitch between adjacent blade portions is 200-500 mm, and the thickness of the blade portion on the spiral blade is 15-40 mm.

[0012] Furthermore, the spiral main shaft is coaxially arranged and rotationally connected with the transmission main shaft on the frame, the tail end of the transmission main shaft is opposite to the front end of the spiral main shaft, and the transmission main shaft and the spiral main shaft are fixedly connected via a connecting flange.

[0013] Furthermore, a keyway is provided at the end of the shaft body, and a bolt hole is provided at the end surface of the shaft body.

[0014] Furthermore, the shaft body and the accessory are detachably connected via the key slot or the bolt hole, and the length of the shaft body can be extended by installing the accessory.

[0015] Furthermore, the accessory comprises an accessory shaft and an accessory spiral blade, the accessory spiral blade is welded on the accessory shaft, and the accessory shaft and the accessory spiral blade are provided with a surfacing wear-resistant alloy.

[0016] Furthermore, the accessories are of different specifications with a length of 100-400 mm and can be selected according to the processing of different materials.

[0017] Furthermore, the end face of the spiral main shaft is connected to the driving shaft of the press body through bolts, and the driving shaft of the press body is used to drive the spiral main shaft to rotate.

[0018] The beneficial effects of the utility model are as follows: through the optimized and improved design of the product of the utility model, the high extrusion section of the spiral main shaft can be disassembled and replaced separately as an accessory, and accessories of corresponding specifications can be selected for adjustment and replacement according to the requirements of different materials to be dehydrated, so as to adapt to the dehydration requirements of different materials and adjust the dehydration effect, thereby improving the dehydration efficiency of the press, improving the adaptability to different materials to be dehydrated, and increasing the adjustment range of the dehydration effect; at the same time, it is more convenient to overhaul and maintain the equipment after wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a stereoscopic diagram of a screw main shaft of a single-shaft screw press capable of rapid adjustment and maintenance according to an embodiment of the utility model;

[0021] Figure 2 It is a side view of a screw main shaft of a single-shaft screw press capable of rapid adjustment and maintenance according to an embodiment of the utility model;

[0022] In the figure: 1. spiral main shaft; 2. shaft body; 3. spiral blade; 4. connecting flange; 5. keyway; 6. cladding wear-resistant alloy; 7. accessories. DETAILED DESCRIPTION

[0023] 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 belong to the scope of protection of the utility model.

[0024] It should be understood that in the description of the embodiments of the present utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of 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 cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0025] like Figure 1-2 As shown, according to an embodiment of the utility model, a screw main shaft of a single-shaft screw press that can be quickly adjusted and maintained includes a screw main shaft 1 installed on a frame, wherein the screw main shaft 1 includes a rotary push section and a detachably connected extrusion section, wherein the rotary push section includes a shaft body 2 and a spiral blade 3 fixedly arranged on the shaft body 2, and the extrusion section includes an accessory 7; the spiral blade 3 includes a plurality of blade parts, the pitch between adjacent blade parts on the feed side is greater than the pitch between adjacent blade parts on the discharge side, and the pitch changes in a decreasing manner, the thickness of the blade part on the discharge side is greater than the thickness of the blade part on the feed side, and the thickness changes in a decreasing manner.

[0026] In some specific embodiments, the spiral blade 3 is integrally formed, and the spiral blade 3 is fixedly connected to the shaft body 2 by welding.

[0027] In some specific embodiments, the outer diameter of the spiral main shaft 1 is 500-800 mm, the pitch between adjacent blade portions is 200-500 mm, and the thickness of the blade portion on the spiral blade 3 is 15-40 mm.

[0028] In some specific embodiments, the spiral main shaft 1 is coaxially rotatably connected with the transmission main shaft on the frame, the tail end of the transmission main shaft is opposite to the front end of the spiral main shaft 1, and the transmission main shaft and the spiral main shaft 1 are fixedly connected via a connecting flange 4.

[0029] In some specific embodiments, a keyway 5 is provided at the end of the shaft body 2, and a bolt hole is provided at the end surface of the shaft body 2.

[0030] In some specific embodiments, the shaft body 2 and the accessory 7 are detachably connected via the key slot 5 or the bolt hole, and the length of the shaft body 2 is extended by installing the accessory 7.

[0031] In some specific embodiments, the accessory 7 includes an accessory shaft and an accessory spiral blade, the accessory spiral blade is welded on the accessory shaft, and the accessory shaft and the accessory spiral blade are provided with a surfacing wear-resistant alloy 6.

[0032] In some specific embodiments, the length of the accessory 7 is 100-400 mm, and accessories 7 of different specifications can be selected according to the processing of different materials.

[0033] In some specific embodiments, the end surface of the spiral main shaft 1 is connected to the driving shaft of the press body through bolts, and the driving shaft of the press body is used to drive the spiral main shaft 1 to rotate.

[0034] In order to facilitate understanding of the above technical solution of the present invention, the above technical solution of the present invention is described in detail below through specific usage.

[0035] In specific use, according to the utility model, a single-axis screw press screw main shaft that can be quickly adjusted and maintained includes a screw main shaft 1 and an accessory 7. The screw main shaft 1 is installed on a frame and rotates around its center; the screw main shaft 1 includes a shaft body 2, spiral blades 3 and an accessory 7; the accessory 7 is installed at the end of the shaft body 2, and the accessory 7 includes an accessory shaft body and an accessory spiral blade, the accessory spiral blade is welded to the accessory shaft body, and the accessory shaft body and the accessory spiral blade are welded with wear-resistant alloy, so that the accessories can be quickly replaced after wear; the accessory 7 has different specifications of 100-400mm to choose from, and can be disassembled and replaced according to the dehydration requirements of different materials.

[0036] The shaft body 2 has a keyway 5 at its end, and a bolt hole is provided on its end face. The keyway 5 at the end of the shaft body 2 and the bolt hole on the end face can be used to install accessories 7 to extend the length of the spiral main shaft 1.

[0037] The spiral main shaft 1 cooperates with the screen frame of the press to apply extrusion force to the material to be dehydrated, thereby achieving the purpose of dehydrating the material; by selecting accessories 7 of different specifications, the length of the high-pressure extrusion section of the material can be adjusted, thereby adapting to the dehydration requirements of different materials and adjusting the dehydration effect.

[0038] The spiral blades 3 are integrally formed and welded to the shaft body 2. The overall outer diameter of the spiral main shaft 1 remains unchanged, and the overall outer diameter of the spiral main shaft 1 is preferably 500-800mm; the pitch of the spiral blades 3 on the feed side is greater than that on the discharge side, the thickness of the spiral blades 3 is between 15-40mm, the feed side of the spiral blades 3 is smaller than that on the discharge side, and the spacing of the spiral blades 3 on the spiral main shaft 1 gradually decreases from the feed side to the discharge side, taking into account both the passability and extrusion force of the material, thereby improving the dehydration efficiency of the press.

[0039] When in use, the spiral main shaft 1 is driven by the driving shaft to push the material to be dehydrated forward by rotating, and a high-pressure extrusion section will appear on the discharge side of the spiral main shaft 1. During the extrusion process, the material to be dehydrated and the spiral blades 3 are violently rubbed, and the spiral blades 3 in the high-pressure extrusion section are severely worn. The utility model separately arranges the high-pressure extrusion section as an accessory 7, which can be quickly replaced, facilitates equipment inspection and maintenance, and also avoids the technical problem of replacing the entire spiral main shaft 1 due to the wear of the high-pressure extrusion section, thereby avoiding the waste of production tools and saving costs.

[0040] To sum up, with the help of the above-mentioned technical scheme of the utility model, through the optimization and improvement design of the product of the utility model, the high extrusion section of the spiral main shaft can be disassembled and replaced separately as an accessory, and the accessories of corresponding specifications can be selected for adjustment and replacement according to the different requirements of the materials to be dehydrated, so as to adapt to the dehydration requirements of different materials and adjust the dehydration effect at the same time, thereby improving the dehydration efficiency of the press, improving the adaptability to different materials to be dehydrated, and increasing the adjustment range of the dehydration effect; at the same time, it is more convenient for the inspection and maintenance of the equipment after wear.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-shaft screw press screw main shaft that can be quickly adjusted and repaired, characterized in that: The invention comprises a spiral main shaft (1) mounted on a frame, the spiral main shaft (1) comprising a rotary push section and a detachably connected extrusion section, the rotary push section comprising a shaft body (2) and a spiral blade (3) fixedly arranged on the shaft body (2), and the extrusion section comprising an accessory (7); the spiral blade (3) comprises a plurality of blade sections, the pitch between adjacent blade sections on the feed side is greater than the pitch between adjacent blade sections on the discharge side, and the pitch changes in a decreasing manner, the thickness of the blade section on the discharge side is greater than the thickness of the blade section on the feed side, and the thickness changes in a decreasing manner.

2. The single-shaft screw press screw main shaft capable of rapid adjustment and maintenance according to claim 1, characterized in that: The spiral blade (3) is integrally formed, and the spiral blade (3) is fixedly connected to the shaft body (2) by welding.

3. The single-shaft screw press screw main shaft capable of rapid adjustment and maintenance according to claim 1, characterized in that: The outer diameter of the spiral main shaft (1) is 500-800 mm, the pitch between adjacent blade portions is 200-500 mm, and the thickness of the blade portion on the spiral blade (3) is 15-40 mm.

4. The single-shaft screw press screw main shaft capable of rapid adjustment and maintenance according to claim 1, characterized in that: The spiral main shaft (1) is coaxially arranged and rotationally connected with the transmission main shaft on the frame, the rear end of the transmission main shaft is opposite to the front end of the spiral main shaft (1), and the transmission main shaft and the spiral main shaft (1) are fixedly connected via a connecting flange (4).

5. The single-shaft screw press screw main shaft capable of rapid adjustment and maintenance according to claim 1, characterized in that: A keyway (5) is provided at the end of the shaft body (2), and a bolt hole is provided at the end surface of the shaft body (2).

6. The single-shaft screw press screw main shaft capable of rapid adjustment and maintenance according to claim 5, characterized in that: The shaft body (2) and the accessory (7) are detachably connected via the keyway (5) or the bolt hole, and the length of the shaft body (2) is extended by installing the accessory (7).

7. The single-shaft screw press screw main shaft capable of rapid adjustment and maintenance according to claim 1, characterized in that: The accessory (7) comprises an accessory shaft and an accessory spiral blade, the accessory spiral blade is welded to the accessory shaft, and the accessory shaft and the accessory spiral blade are provided with a surfacing wear-resistant alloy (6).

8. The single-shaft screw press screw main shaft capable of rapid adjustment and maintenance according to claim 1, characterized in that: The length of the accessory (7) is 100-400 mm, and accessories (7) of different specifications can be selected according to the processing of different materials.

9. A single-shaft screw press screw main shaft capable of rapid adjustment and maintenance according to any one of claims 1 to 8, characterized in that: The end surface of the spiral main shaft (1) is connected to the driving shaft of the press body via bolts, and the driving shaft of the press body is used to drive the spiral main shaft (1) to rotate.

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