Quick release type locking sleeve for rake nails of threshing and redrying hot air leaf moistening machine

Abstract

The utility model discloses a quick release type locking sleeve for a harrow nail of a threshing and redrying hot air leaf moistening machine, which comprises a quick release locking sleeve base and a locking screw rod which are sequentially arranged, the quick release locking sleeve base is connected with the inner wall of a leaf moistening cylinder of the hot air leaf moistening machine, the locking screw rod is in threaded connection with the harrow nail, and the quick release locking sleeve base is connected with the inner wall of the leaf moistening cylinder of the hot air leaf moistening machine. The locking screw is connected with the quick-release locking sleeve base through a lower locking clamping groove nut. According to the quick-disassembly type locking sleeve for the rake nails of the threshing and redrying hot air leaf moistening machine, the requirements for quick disassembly and quick assembly of the fixed rake nails of the leaf moistening machine can be met, so that different requirements for leaf moistening procedures due to different specifications, sizes and processing modes of different supplied tobacco leaves are met, and the tobacco leaves of different specifications are prevented from being wound and caked; the device is safe, stable and easy to maintain, and a convenient and safe dismounting device can be provided for harrow nails in a high-temperature and high-humidity environment; stress is reliable, installation is stable, the stress requirements of the rake nails in different directions can be met, and the self-rotating centrifugal force effect of the barrel is resisted.

Description

Technical Field

[0001] The utility model relates to the technical field of leaf threshing and re-drying, and more specifically to a quick-release locking sleeve for rake nails of a leaf threshing and re-drying hot air leaf moistening machine. Background Art

[0002] In the leaf redrying process, MacTavish hot air moistening machines are often used to process tobacco agricultural products. The tobacco leaves are continuously spirally advanced to the discharge port through the rotation of the moistening cylinder inside the hot air moistening machine to complete the moistening process. In the moistening cylinder, the tobacco leaves are processed with high temperature and high humidity steam to replenish water and heat the tobacco leaves. In tobacco redrying production enterprises, the tobacco leaf redrying process is the core link to regulate the intrinsic quality of tobacco leaves and remove the green impurities of the original tobacco. The moistening cylinder of the hot air moistening machine has a horizontal angle of 3-5° with the ground. The tobacco leaves move forward at a constant speed to the discharge port under the action of gravity and the centrifugal force of the cylinder body. Due to the physical properties of tobacco leaves, they are prone to entanglement and agglomeration when subjected to force. The moistening cylinder is often equipped with rake nails to separate the agglomeration of tobacco leaves, which plays the role of loosening the tobacco pile and evenly rake loosening the material. The moistening cylinder of the hot air moistening machine is mainly composed of the moistening cylinder, the outer wall of the moistening cylinder, the inner wall of the moistening cylinder, the inner rake nails and the outer rake nails.

[0003] The tobacco leaves enter the feeding end of the moistening cylinder and move on the inner wall of the moistening cylinder as the moistening cylinder rotates clockwise. The inner rakes continuously loosen the leaves until the outer rakes ensure that the tobacco leaves are discharged evenly without agglomeration at the discharging end. Due to different requirements for tobacco leaf processing and different origins of tobacco leaves, the length and width of the incoming tobacco leaves are different, and the processing time required for each batch of tobacco leaves in the moistening cylinder is also different. The same arrangement of inner and outer rakes cannot fully meet the processing requirements of different tobacco leaves, and it is often necessary to temporarily remove the inner and outer rakes. To ensure stability, the rakes are completely welded to the inner wall of the moistening cylinder using an integrated molding process. When the arrangement and number of rakes need to be changed, only cutting can be performed. The operation is difficult, and the cutting and grinding of the rakes take a long time, which is not conducive to production continuity and process requirements. It may even cause irreversible damage to the inner wall of the moistening cylinder, resulting in repeated cutting and welding of the rakes, which seriously affects the service life of the rakes and the moistening cylinder.

[0004] Therefore, there is an urgent need for a quick-release locking sleeve for the rake nails of a leaf threshing and re-drying hot air leaf moistening machine. Utility Model Content

[0005] The purpose of the utility model is to provide a quick-release locking sleeve for the rake nails of a leaf threshing and re-drying hot air leaf moistening machine to solve the problems in the above-mentioned prior art, to meet the different rake nail usage modes of different incoming material specifications, and to greatly reduce the replacement and installation time of the rake nails.

[0006] The utility model provides a quick-release locking sleeve for the rake nails of a hot-air leaf-conditioning machine in tobacco threshing and redrying, which includes: a quick-release locking sleeve base and a locking screw arranged in sequence, wherein the quick-release locking sleeve base is connected to the inner wall of the leaf-conditioning cylinder of the hot-air leaf-conditioning machine, the locking screw is threadedly connected to the rake nail, and the locking screw is connected to the quick-release locking sleeve base through a lower locking groove nut.

[0007] For the quick-release locking sleeve for the rake nails of the hot-air leaf-conditioning machine in tobacco threshing and redrying as described above, preferably, at least one of the quick-release locking sleeve base, the lower locking groove nut, and the locking screw is made of anti-corrosion alloy material.

[0008] For the quick-release locking sleeve for the rake nails of the hot-air leaf-conditioning machine in tobacco threshing and redrying as described above, preferably, the quick-release locking sleeve base is welded to the inner wall of the leaf-conditioning cylinder of the hot-air leaf-conditioning machine.

[0009] For the quick-release locking sleeve for the rake nails of the hot-air leaf-conditioning machine in tobacco threshing and redrying as described above, preferably, the lower locking groove nut is sleeved outside the locking screw and is threadedly connected to the locking screw.

[0010] For the quick-release locking sleeve for the rake nails of the hot-air leaf-conditioning machine in tobacco threshing and redrying as described above, preferably, the lower locking groove nut is matched with the diameter of the locking screw.

[0011] For the quick-release locking sleeve for the rake nails of the hot-air leaf-conditioning machine in tobacco threshing and redrying as described above, preferably, a rake nail threaded hole is longitudinally opened at the connection between the rake nail and the locking screw, and the locking screw is threadedly connected to the rake nail through the rake nail threaded hole.

[0012] For the quick-release locking sleeve for the rake nails of the hot-air leaf-conditioning machine in tobacco threshing and redrying as described above, preferably, the diameter of the locking screw is slightly smaller than the diameter of the rake nail threaded hole so that the locking screw can be screwed into the rake nail threaded hole.

[0013] For the quick-release locking sleeve for the rake nails of the hot-air leaf-conditioning machine in tobacco threshing and redrying as described above, preferably, a plurality of upper locking grooves are circumferentially opened at the connection between the rake nail and the locking screw.

[0014] For the quick-release locking sleeve for the rake nails of the hot-air leaf-conditioning machine in tobacco threshing and redrying as described above, preferably, the number of the upper locking grooves is four and they are uniformly distributed circumferentially on the rake nail.

[0015] For the quick-release locking sleeve for the rake nails of the hot-air leaf-conditioning machine in tobacco threshing and redrying as described above, preferably, a twelve-card stop washer is sleeved on the locking screw, and the twelve-card stop washer is used for slot-type fixing of the lower locking groove nut and the upper locking groove respectively.

[0016] The utility model provides a rake nail for a hot air conditioning and leaf separating machine in tobacco leaf redrying, which can meet the requirements of quick disassembly and quick installation of the fixed rake nails of the conditioning machine, so as to meet the different requirements of different tobacco leaf feeding specifications, sizes and processing methods for the conditioning process, and prevent different specifications of tobacco leaves from winding and agglomerating; it is safe and stable, and simple to maintain, and can provide a convenient and safe disassembly and installation device for the use of rake nails in high-temperature and high-humid environments; the force is reliable, the installation is firm, and it can meet the force requirements of the rake nails in different directions and has a strong resistance to the centrifugal force of the cylinder spin; it adopts a double locking mode of thread locking and key pin locking to firmly fix the original integrally formed rake nails on the locking sleeve. The double locking mode can fully meet the required force intensity for the work of the rake nails. When it is necessary to adjust and replace the arrangement of the rake nails, they can be quickly disassembled and replaced to meet the process instructions and the requirements of production continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described below in conjunction with the drawings, where:

[0018] Figure 1 It is a schematic structural diagram of an embodiment of a quick-disassembly locking sleeve for a rake nail of a hot air conditioning and leaf separating machine in tobacco leaf redrying provided by the present utility model;

[0019] Figure 2 It is a schematic structural diagram of a quick-disassembly locking sleeve base, a lower locking groove nut, a locking screw and a twelve-card stop washer of an embodiment of a quick-disassembly locking sleeve for a rake nail of a hot air conditioning and leaf separating machine in tobacco leaf redrying provided by the present utility model;

[0020] Figure 3 It is an assembly schematic diagram of an embodiment of a quick-disassembly locking sleeve for a rake nail of a hot air conditioning and leaf separating machine in tobacco leaf redrying provided by the present utility model.

[0021] Description of the reference numerals: 1-inner wall of the conditioning cylinder of the hot air conditioning and leaf separating machine, 2-quick-disassembly locking sleeve base, 3-lower locking groove nut, 4-locking screw, 5-twelve-card stop washer, 6-upper locking groove, 7-rake nail threaded hole, 8-rake nail. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the drawings. The description of the exemplary embodiments is merely illustrative and in no way limits the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the compositions of materials, numerical expressions and numerical values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0023] As used in this disclosure, terms such as "first", "second", and the like do not denote any order, quantity, or importance, but are merely used to distinguish different components. Words such as "comprising" or "including" mean that the elements before such words cover the elements listed after such words, and do not exclude the possibility of also covering other elements. Terms such as "upper" and "lower" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] In this disclosure, when it is described that a specific component is located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components and have an intermediate component.

[0025] All terms used in this disclosure (including technical terms or scientific terms) have the same meaning as understood by those of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, for example, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0026] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be regarded as part of the specification.

[0027] Currently, for the situation where the inner and outer rake nails of the leaf conditioning cylinder of the hot air leaf conditioner often need to be adjusted according to the origin, specifications, and dimensions of the tobacco leaves, most enterprises solve the problem by temporarily cutting and welding the rake nails according to the requirements of the process instructions. Considering the requirements of the long-term continuous production mode, although temporarily cutting and welding the rake nails can meet the processing requirements of multi-specification tobacco leaves, the cutting and welding operations inside the leaf conditioning cylinder are difficult, and the operation can only be carried out after completely emptying the materials, with a long waiting period, which is not conducive to production continuity. Moreover, there are a large amount of soot and tobacco dust inside the leaf conditioning cylinder, and improper operation is extremely likely to cause a fire. And frequently cutting and welding the inner and outer rake nails greatly shortens the service life of the rake nails.

[0028] As Figures 1 - 3 shown, the quick-release locking sleeve for the rake nails of the hot air leaf conditioner for threshing and redrying provided in this embodiment includes: a quick-release locking sleeve base 2 and a locking screw 4 arranged in sequence. Among them, the quick-release locking sleeve base 2 is connected to the inner wall 1 of the leaf conditioning cylinder of the hot air leaf conditioner, the locking screw 4 is threadedly connected to the rake nail 8, and the locking screw 4 is connected to the quick-release locking sleeve base 2 through a lower locking groove nut 3.

[0029] Among them, the quick-release locking sleeve base 2 is welded to the inner wall 1 of the leaf moistening cylinder of the hot air leaf moistening machine, which facilitates the timely dispersion of the impact force of the leaves to the inner wall during operation. In a specific implementation, the original welding position of the rake nails can be replaced with the welding of the quick-release locking sleeve base 2, which facilitates the rapid disassembly and replacement of rake nails 8 of multiple specifications.

[0030] Furthermore, at least one of the quick-release locking sleeve base 2, the lower locking groove nut 3, and the locking screw 4 is made of anti-corrosion alloy material. In an embodiment of the present invention, the quick-release locking sleeve base 2, the lower locking groove nut 3, and the locking screw 4 are all made of anti-corrosion alloy material (for example, it can be carbon steel), which can avoid corrosion in the high-temperature and high-humidity working environment of the hot air leaf moistening machine.

[0031] Even further, the lower locking groove nut 3 is sleeved outside the locking screw 4 and is threadedly connected to the locking screw 4, which ensures convenient disassembly and avoids force deviation. The diameter of the lower locking groove nut 3 matches that of the locking screw 4. In an embodiment of the present invention, the lower locking groove nut 3 adopts a multi-specification replaceable design and can be replaced according to different diameter sizes of the locking screw 4.

[0032] Furthermore, a rake nail threaded hole 7 is longitudinally opened at the connection between the rake nail 8 and the locking screw 4, and the locking screw 4 is threadedly connected to the rake nail 8 through the rake nail threaded hole 7. Specifically, the diameter of the locking screw 4 is slightly smaller than the diameter of the rake nail threaded hole 7, so that the locking screw 4 can be screwed into the rake nail threaded hole 7.

[0033] Furthermore, a plurality of upper locking grooves 6 are circumferentially opened at the connection between the rake nail 8 and the locking screw 4. Among them, the number of the upper locking grooves 6 is four and they are evenly distributed circumferentially on the rake nail 8. It should be noted that the present invention does not specifically limit the number and distribution method of the upper locking grooves 6.

[0034] Even further, a twelve-notch anti-loosening washer 5 is sleeved on the locking screw 4, and the twelve-notch anti-loosening washer 5 is used to respectively perform notch-type fixation on the lower locking groove nut 3 and the upper locking groove 6. The rake nail 8 is connected to the locking screw 4 through the rake nail threaded hole 7, and the twelve-notch anti-loosening washer 5 is used to reinforce the upper and lower notches. The four notches are evenly stressed, which is easy to conduct and disperse the force in a timely manner. While ensuring convenient disassembly of the rake nail 8, it prevents the rake nail 8 from being stressed and skewed or falling off. In an embodiment of the present invention, after selecting an appropriate position, the notch of the twelve-notch anti-loosening washer 5 is pried off to perform notch-type fixation on the installed lower locking groove nut 3 and the upper locking groove 6 to reinforce the stress intensity, thereby completing the quick-release and replaceable locking of the rake nail 8.

[0035] During work, as Figure 3 shown, during use, according to different requirements of the processing specifications of the incoming tobacco leaves, two modes of quick installation and quick disassembly can be adopted for the conditioning cylinder of the hot air conditioner and the rake nails 8. Specifically, during quick disassembly, a flat-head screwdriver is needed to pry open the bayonet of the twelve-card check washer 5, and then a quick wrench can be used to loosen the thread of the rake nail 8, so as to remove the locking sleeve assembly to complete the quick disassembly; in the quick installation mode, first select an appropriate lower locking groove nut 3 according to the diameter size of the locking screw 4 and tighten it to the limit position, then put on the twelve-card check washer 5, screw in the rake nail 8 of the required specification, and use a flat-head screwdriver to snap the bayonets of the twelve-card check washer 5 into the four slots of the lower locking groove nut 3 and the four slots of the upper locking groove 6 respectively to complete the quick installation requirements. Locking the rake nails 8 up and down can reinforce the connection between the rake nails 8 and the quick-disassembly locking sleeve base 2 for the second time, preventing the rake nails from being skewed or falling off due to force. The utility model can realize the installation and use of special specification rake nails by modifying the rake nails.

[0036] The quick-disassembly locking sleeve for the rake nails of the hot air conditioner for threshing and redrying provided by the embodiment of the utility model can realize the quick disassembly and quick installation requirements of the fixed rake nails of the conditioner, so as to meet the different requirements of the conditioning process for different incoming tobacco leaf specifications, sizes and processing methods, and prevent different specifications of tobacco leaves from winding and agglomerating; safe and stable, simple to maintain, and can provide a convenient and safe disassembly and installation device for the use of rake nails in high-temperature and high-humidity environments; reliable in force, stable in installation, can meet the force requirements of rake nails in different directions, and has strong resistance to the centrifugal force of the cylinder spin; adopts a double-locking mode of thread locking and key pin locking, firmly fixes the original integrally formed rake nails on the locking sleeve, and the double-locking mode can fully meet the force strength required for the work of the rake nails. When it is necessary to adjust and replace the rake nail arrangement, it can be quickly disassembled and replaced to meet the process instructions and production continuity requirements.

[0037] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details well known in the art have not been described. Those skilled in the art can clearly understand how to implement the technical solutions disclosed here based on the above description.

[0038] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for the purpose of illustration and not for the purpose of limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A quick-release locking sleeve for the rake nails of a hot air leaf conditioning machine in tobacco leaf threshing and redrying, characterized in that, Comprising: A quick-release locking sleeve base and a locking screw arranged in sequence, wherein the quick-release locking sleeve base is connected to the inner wall of the leaf moistening cylinder of the hot air leaf moistening machine, the locking screw is threadedly connected to the rake nail, and the locking screw is connected to the quick-release locking sleeve base through a lower locking groove nut.

2. The quick-release locking sleeve for the rake nails of the hot air leaf conditioning machine in tobacco threshing and redrying according to claim 1, wherein, At least one of the quick-release locking sleeve base, the lower locking groove nut and the locking screw is made of anti-corrosion alloy material.

3. The quick-release locking sleeve for the rake nails of the hot air leaf conditioning machine in tobacco threshing and redrying according to claim 1, characterized in that, The quick-release locking sleeve base is welded to the inner wall of the leaf moistening cylinder of the hot air leaf moistening machine.

4. The quick-release locking sleeve for the rake nails of the hot air leaf conditioning machine in tobacco threshing and redrying according to claim 1, characterized in that, The lower locking groove nut is sleeved outside the locking screw and is threadedly connected to the locking screw.

5. The quick-release locking sleeve for the rake nails of the hot air conditioning and leaf separating machine according to claim 4, characterized in that, The lower locking groove nut is matched with the locking screw in diameter.

6. The quick-release locking sleeve for the rake nails of the hot air leaf conditioning machine in tobacco threshing and redrying according to claim 1, wherein, A rake nail threaded hole is longitudinally formed at the connection between the rake nail and the locking screw, and the locking screw is threadedly connected to the rake nail through the rake nail threaded hole.

7. The quick-release locking sleeve for the rake nails of the hot air conditioning and leaf-reconditioning machine according to claim 6, characterized in that, The diameter of the locking screw is slightly smaller than the diameter of the rake nail threaded hole so that the locking screw can be screwed into the rake nail threaded hole.

8. The quick-release locking sleeve for the rake nails of the hot air conditioning and leaf re-drying machine according to claim 7, characterized in that A plurality of upper locking grooves are circumferentially formed at the connection between the rake nail and the locking screw.

9. The quick-release locking sleeve for the rake nails of the hot air leaf conditioning machine in tobacco threshing and redrying according to claim 8, characterized in that, The number of the upper locking grooves is four and they are evenly distributed circumferentially on the rake nail.

10. The quick-release locking sleeve for the rake nails of the hot air conditioning and leaf separating machine according to claim 8, characterized in that, A twelve-tooth retaining washer is sleeved on the locking screw, and the twelve-tooth retaining washer is used for respectively performing card slot type fixation on the lower locking groove nut and the upper locking groove.

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