Bevel paddle structure

Abstract

The utility model discloses a bevel paddle structure which comprises a bevel paddle, a plurality of non-bevel blades are arranged on the bevel paddle, front-end bevels are arranged at the front ends of the non-bevel blades, tail-end bevels are arranged at the rear ends of the non-bevel blades, the bending direction of the front-end bevels is opposite to that of the tail-end bevels, and the bending direction of the tail-end bevels is opposite to that of the front-end bevels. And the front-end folded angle and the tail-end folded angle are bent by a bending machine, so that the folded angle sizes of the front-end folded angle and the tail-end folded angle are kept consistent. The blanking sizes of the front end bevel and the tail end bevel are controlled to be consistent, the bending directions are opposite, and the front end bevel and the tail end bevel can be bent through a bending machine, so that the size accuracy of the front end bevel and the tail end bevel, the bending inner side fillet, the bevel position and the like is guaranteed; and the front-end break angle and the tail-end break angle are connected with the break-angle-free blade in a welding manner, so that the consistency of the break-angle-free blade, the front-end break angle and the tail-end break angle is ensured, and the actual use requirement can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of thin film evaporators, in particular to a folded angle blade structure. Background Art

[0002] Thin film evaporators are mainly used in albumin preparation, peptide and other industries to evaporate organic solvents in the feed liquid, and use the material concentration ratio and solvent residue to meet the dosage standard requirements. We can provide customers with fully customized systems, such as manual and automatic modes, number of evaporators, processors, temperature control range, etc.

[0003] High-efficiency rotary thin film evaporator is a new type of high-efficiency evaporator that can perform falling film evaporation under certain vacuum conditions by forming an "air knife" through the high-speed rotation of a fixed rotating scraper. It has a large heat transfer coefficient, high evaporation intensity, short and adjustable flow time, and is especially suitable for evaporation and concentration of heat-sensitive materials and materials with higher viscosity, and removal of solvents.

[0004] Because of this, the high-speed rotating blades inside the cylinder have more stringent requirements. In order to ensure smooth operation without abnormal vibration and noise, the high-speed operation will control the influence of residual imbalance or eccentricity on it, and perform strict overall dynamic balancing in accordance with ISO1840 (after all rotating parts are assembled as a whole, the overall dynamic balancing test is performed) to eliminate the residual imbalance or eccentricity from the source. However, we found that the blades made each time were difficult to manufacture at the corners, and were prone to problems such as inconsistency at the corners. Some problems even directly affected the test of the actual material of the thin film evaporator.

[0005] In view of this, it is necessary to design a folded blade structure to solve the above problems. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0007] To this end, the utility model provides a folded-angle blade structure, which can ensure the consistency of the dimensions at each folded angle.

[0008] According to the first aspect of the utility model, a folded blade structure is provided, including a folded blade, on which a plurality of non-folded blades are provided, and the front and rear ends of the non-folded blades are respectively provided with a front end fold angle and a rear end fold angle, the front end fold angle and the rear end fold angle are opposite in bending direction, and the front end fold angle and the rear end fold angle have the same fold angle size.

[0009] Preferably, the corner dimensions at least include the corner angle dimension and the corner inner rounding dimension.

[0010] Preferably, the angles of the front corner and the rear corner are consistent, and the inner rounded corners of the front corner and the rear corner are consistent in size.

[0011] Further preferably, the front end angle is welded to the blade without angle, and the end angle is welded to the blade without angle.

[0012] Further preferably, a weld is formed at the welding points between the front end angle and the terminal angle and the non-angled blade, and the front end angle and the terminal angle are suitable for correction so that the angle sizes of the front end angle and the terminal angle are consistent.

[0013] Preferably, the weld between the front end angle and the terminal angle is suitable for grinding, so that the front end angle, the terminal angle and the blade without angle are visually integrated.

[0014] Further preferably, the front end angle and the end angle are both single-sidedly welded to the non-angled blade to form double-sided shapes.

[0015] Preferably, a plurality of the blades without folded corners are provided, and the plurality of the blades without folded corners are arranged on the folded corner blade at equal intervals.

[0016] Further preferably, the front end angle and the terminal angle are symmetrically provided on the non-angled blades provided on adjacent two sides of the angled blade.

[0017] Further preferably, the angled blade is a sheet metal bent part.

[0018] The beneficial effect of the utility model is that by controlling the cutting size of the front end corner and the terminal corner to be consistent and the bending directions to be opposite, and the front end corner and the terminal corner to be bent by a bending machine, the dimensional accuracy of the front end corner and the terminal corner, the inner radius of the bend, the corner position and other dimensions can be guaranteed; and the front end corner and the terminal corner are connected to the blade without an angle by welding, so as to ensure the consistency of the blade without an angle with the front end corner and the terminal angle, so as to better meet the actual use requirements.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a blade development diagram of the angled blade structure of the utility model;

[0023] Figure 2 It is a side view of the angled blade structure of the utility model.

[0024] 1. Angle blade; 2. Non-angle blade; 3. End angle; 4. Front angle. DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] In the description of the present invention, it should be understood that the terms "top", "bottom", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] See also Figure 1 to Figure 2 The utility model is a folded blade 1 structure in a specific embodiment, including a folded blade 1, and a plurality of blades 2 without folded angles are arranged on the folded blade 1, the front end of the blade without folded angle 2 is provided with a front folded angle 4, and the rear end is provided with a terminal folded angle 3, and the bending directions of the front folded angle 4 and the terminal folded angle 3 are opposite, and the front folded angle 4 and the terminal folded angle 3 are bent by a bending machine, and when bending, the bending line A and the bending line B are first marked, and the front folded angle 4 and the terminal folded angle 3 are bent along the corresponding marked bending lines A / B. After bending, the folded angle sizes of the front folded angle 4 and the terminal folded angle 3 are consistent.

[0028] In addition, the non-angled blades 2 are symmetrically opened on the adjacent two sides of the angled blade 1, and the front end angle 4 and the end angle 3 are symmetrically opened along the angled blade 1 on the non-angled blades 2 opened on the adjacent two sides of the angled blade 1, and only the front end and the end angles are set as sheet metal bending parts.

[0029] Specifically, the angle dimensions of the front corner 4 and the terminal corner 3 at least include the size of the angle, the size of the inner rounded corner of the angle, and the confirmation of the angle position, etc. Therefore, by controlling the size of the front corner 4 and the terminal corner 3, the angle sizes of the front corner 4 and the terminal corner 3 are kept consistent, the sizes of the inner rounded corners of the bends of the front corner 4 and the terminal corner 3 are kept consistent, and the installation positions of the front corner 4 and the terminal corner 3 are controlled so as not to produce deviations, so as to effectively ensure the consistency of the front corner 4 and the terminal corner 3 after being installed on the non-angled blade 2. Compared with the traditional manual bending method, it can effectively avoid the deviation of the angle position size, the angle deviation and the inner rounded corner deviation, so that the finally formed angled blade 1 can meet the operation requirements.

[0030] More specifically, the front end corner 4 is welded to the non-angled blade 2, and the terminal corner 3 is welded to the non-angled blade 2, and a weld is formed at the welding points between the front end corner 4 and the terminal corner 3 and the non-angled blade 2. After welding, the front end corner 4 and the terminal corner 3 need to be corrected to fine-tune the positions of the front end corner 4 and the terminal corner 3 to further ensure that the angle sizes of the front end corner 4 and the terminal corner 3 are consistent.

[0031] In addition, the front end angle 4 and the end angle 3 are welded by single-sided welding and double-sided forming. This welding method mainly includes continuous arc welding, broken arc welding and other welding methods. It uses ordinary welding rods and special operation methods to weld on the front side of the groove to ensure that both sides of the groove can be obtained. After completing the welding of the front end angle 4 and the end angle 3, it is necessary to grind the welds of the front end angle 4, the end angle 3 and the non-angled blade 2, and after grinding, the front end angle 4, the end angle 3 and the non-angled blade 2 can be visually integrated, that is, no seams can be seen at all.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above description is based on the ideal embodiment of the utility model. Through the above description, relevant staff can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of the utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A folded blade structure, characterized in that: The invention comprises a folded angle blade (1), wherein a plurality of blades (2) without folded angles are arranged on the folded angle blade (1), a front end folded angle (4) is arranged at the front end of the blade without folded angle (2), and a terminal folded angle (3) is arranged at the rear end of the blade without folded angle (2), the front end folded angle (4) and the terminal folded angle (3) are bent in opposite directions, and the front end folded angle (4) and the terminal folded angle (3) are bent by a bending machine so that the folded angle sizes of the two are kept consistent.

2. The angled blade structure according to claim 1, characterized in that: The corner dimensions at least include the corner angle dimension and the corner inner rounded dimension.

3. The angled blade structure according to claim 2, characterized in that: The angle of the front end folded corner (4) is consistent with that of the end folded corner (3), and the inner rounded corner size of the front end folded corner (4) is consistent with that of the end folded corner (3).

4. The angled blade structure according to claim 3, characterized in that: The front end folded corner (4) is welded to the non-folded corner blade (2), and the end folded corner (3) is welded to the non-folded corner blade (2).

5. The angled blade structure according to claim 4, characterized in that: A weld is formed at the welding point between the front end angle (4) and the end angle (3) and the non-angled blade (2), and the front end angle (4) and the end angle (3) are suitable for correction so that the angle dimensions of the front end angle (4) and the end angle (3) are consistent.

6. The angled blade structure according to claim 5, characterized in that: The weld between the front end angle (4) and the end angle (3) is suitable for grinding, so that the front end angle (4), the end angle (3) and the non-angled blade (2) are visually integrated.

7. The angled blade structure according to claim 5, characterized in that: The front end folded angle (4) and the end folded angle (3) are both welded to the non-folded angle blade (2) on one side and formed on both sides.

8. The angled blade structure according to any one of claims 1 to 7, characterized in that: A plurality of the blades (2) without folded corners are provided, and the plurality of blades (2) without folded corners are arranged at equal intervals on the folded corner blade (1).

9. The angled blade structure according to claim 8, characterized in that: The front end fold angle (4) and the end end fold angle (3) are symmetrically provided on the non-fold angle blades (2) provided on the adjacent two sides of the fold angle blade (1) along the fold angle blade (1).

10. The angled blade structure according to claim 8, characterized in that: The angled blade (1) is a sheet metal bent part.

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