Light reflecting device convenient to install and used for dynamic balance correction

Abstract

The utility model discloses a convenient-to-install reflecting device for dynamic balance correction, and belongs to the field of rotor dynamic balance correction. The rotating shaft comprises an attaching part and a fixing part, a light reflecting layer is arranged on the front side face, away from the surface of the rotating shaft, of the attaching part, and multiple sets of installation clamping pieces are arranged on the periphery of the attaching part; the fixing part is provided with a plurality of fixing ropes capable of being contracted and stretched, the outer end of each fixing rope is provided with a fixing accessory connected with the corresponding installation clamping piece in a matched mode, and when the fixing ropes are stretched, the fixing ropes can extend to enable the fixing accessories to be connected with the installation clamping pieces. The fixing rope can be tensioned from the periphery of the attaching part when contracted so that the back side face of the attaching part can be tightly attached to the surface of the rotating shaft. According to the reflective sticker, a traditional sticky pasting mode of the reflective sticker is omitted, the reflective layer is arranged on the front side face of the pasting part to serve as the reflective sticker, the fixing part tightly wraps the surface of the rotating shaft in the mode that the fixing ropes on the periphery are tensioned, and the situation that pasting falls off in the using process can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor dynamic balance correction, and more specifically to a reflective device for dynamic balance correction which is convenient to install. Background Art

[0002] At present, the on-site rotor dynamic balancing correction technology is widely used. During the dynamic balancing correction process, it is necessary to measure the shaft speed and initial phase. The common practice in the industry is to measure the speed and phase by sticking reflective stickers on the shaft. However, it has been found in long-term practice that sticking reflective stickers has some inconveniences, such as: due to the presence of oil on the shaft, the reflective stickers may not be firmly pasted and fall off during the test, affecting the test; for example, due to the small size of the cursor paper, on-site operation is inconvenient. If the installation method of the reflective stickers can be further optimized, the application convenience will be greatly improved.

[0003] After searching, the patent with publication number CN204418254U discloses a reflective sticker installation structure, which includes a hood shell and a reflective sticker. The reflective sticker is installed on the outer surface of the hood shell through a connector. Since the reflective sticker is installed on the hood shell through the connector, when the reflective sticker needs to be replaced, it is only necessary to remove the connector, thereby effectively improving the stability of the connection between the reflective sticker and the hood shell and preventing the reflective sticker from falling off due to various external factors. The reflective sticker in this design is mainly for field engineering construction environments and cannot be applied to the field of dynamic balance correction.

[0004] The patent with publication number CN111609841A discloses a reflective tape posting device for engineering measurement, including an operating tube, one end of which is connected to a support wheel assembly through an arbitrary steering adjustment assembly, and a support plate is hinged on both sides of the support wheel assembly through a hinge support, and a torsion spring is installed on the hinge support for rotating the support plate away from the arbitrary steering adjustment assembly, and a slot for the end of the reflective tape is provided on the upper side of the outer end of the support plate, and an adjustable rope pulley assembly is also installed at the bottom of the operating tube, and the adjustable rope pulley assembly is used to support the two support plates and simultaneously pull the two support plates close to the arbitrary steering adjustment assembly for rotation. This design improves the efficiency and quality of reflective tape posting, and reduces the accuracy of subsequent engineering measurements. However, the structural design is relatively complex, and is applied to the use of reflective tape in the measurement process of the total station. Similarly, it is not suitable for installation on the shaft position in the field of dynamic balance correction. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] The purpose of the utility model is to overcome the problem in the prior art that reflective stickers are not easily adhered firmly and are inconvenient to operate during dynamic balance correction. It is intended to provide a reflective device for dynamic balance correction that is easy to install, directly eliminating the traditional reflective sticker pasting installation form, and has higher stability after installation and is more convenient to operate.

[0007] 2. Technical solution

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0009] The utility model discloses a reflective device for dynamic balance correction which is easy to install, comprising:

[0010] The attachment part, the back side of the attachment part is used to be closely attached to the surface of the rotating shaft, and the front side of the attachment part away from the surface of the rotating shaft is provided with a reflective layer; multiple groups of mounting clamps are provided around the attachment part;

[0011] The fixing part and the attaching part are installed at different positions on the circumference of the rotating shaft surface. The fixing part is provided with a plurality of fixing ropes that can be retracted and stretched. The outer end of each fixing rope is provided with a fixing accessory that cooperates with the mounting clamp. When the fixing rope is stretched, it can extend to connect the fixing accessory with the mounting clamp. When the fixing rope is contracted, it can be tightened from all sides of the attaching part so that the back side of the attaching part is tightly attached to the rotating shaft surface.

[0012] Furthermore, the back side of the attachment part has an elastic attachment layer for tightly fitting with the surface of the shaft, the reflective layer and the elastic attachment layer together constitute the main structure of the attachment part, and the mounting clip is arranged on the reflective layer.

[0013] Furthermore, the installation fixture on the attachment portion adopts a hook or column structure, and the fixing accessory at the outer end of the fixing rope adopts a fixing ring, and the connection is achieved by hooking the fixing ring on the installation fixture.

[0014] Furthermore, the fixing part includes:

[0015] A fixed attachment layer, used to abut against the surface of the rotating shaft;

[0016] A fixed installation box is located on a wall surface of the fixed attachment layer away from the rotating shaft surface, and a roller for installing a fixed rope is provided in the fixed installation box, and fixed ropes are connected to both sides of the roller respectively, and the contraction and elongation of the fixed ropes on both sides are controlled by controlling the steering of the roller;

[0017] The fixed installation box is also provided with a power component for driving the roller to rotate.

[0018] Furthermore, the power assembly includes a handle that is rotatably mounted on a fixed mounting box, a handle rotating rod in the center of the handle extends to the inside of the fixed mounting box, and a center gear is provided on the end, a transmission gear meshing with the center gear is provided on the side of the center gear, and a roller is coaxially mounted on the central fixed axis of the transmission gear, and the rotation of the center gear is driven by rotating the handle, thereby finally driving the roller to rotate synchronously.

[0019] Furthermore, a first transmission gear and a second transmission gear are respectively meshed on both sides of the central gear in the fixed installation box, a first roller is coaxially mounted on the central fixed axis of the first transmission gear, a second roller is coaxially mounted on the central fixed axis of the second transmission gear, and fixing ropes are respectively provided on both sides of the first roller and the second roller; four groups of mounting clips are correspondingly provided around the attachment portion.

[0020] Furthermore, a limiting component is also provided on the fixed installation box, and the limiting component is used to limit the loosening of the fixing rope after the fixing rope is tightened.

[0021] Furthermore, the limit assembly includes a limit gear and a limit rod, the limit gear is coaxially mounted on the handle rotating rod and rotates synchronously with the handle rotating rod; one end of the limit rod is hinged on the fixed mounting box, and the other end is provided with a hook portion for embedding in the gap between adjacent teeth of the limit gear.

[0022] Furthermore, the fixing and attaching layer is made of elastic material.

[0023] Furthermore, the fixed installation box is a shell structure with an installation inner cavity, and a channel for the fixing rope to extend out is provided on the side wall of the shell structure.

[0024] 3. Beneficial effects

[0025] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0026] (1) The reflective device for dynamic balance correction of the utility model eliminates the traditional adhesive sticking form of reflective stickers, and sets a reflective layer on the side surface of the attachment part to act as a reflective sticker for measuring the rotation speed and phase; the fixing part tightly wraps the attachment part on the surface of the shaft by tightening the surrounding fixing ropes, and adopts a mechanical installation form. The attachment part and the fixing part cooperate and tighten with each other, which can effectively avoid the sticker from falling off during use, and is convenient for on-site operation and installation.

[0027] (2) The reflective device for dynamic balance correction of the present invention is also provided with a limit assembly for limiting the loosening of the fixing rope due to reverse rotation after the fixing rope is tightened, thereby further ensuring the tightening effect of the fixing part on the surrounding of the attachment part, so that the fixing rope will not loosen during the rotation test of the shaft after being tightened, thereby improving the test accuracy and stability.

[0028] (3) The reflective device for dynamic balance correction of the utility model has an elastic attaching layer on the back side of the attaching portion that fits tightly with the surface of the rotating shaft, and a fixed attaching layer is also provided on one side of the fixed portion. Both the elastic attaching layer and the fixed attaching layer can be made of rubber material layers, which is beneficial to increase friction, improve the stability of the fit with the surface of the rotating shaft, and avoid falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the main structure of the attachment part of the utility model;

[0030] Figure 2 It is a side view structural diagram of the attachment part in the utility model;

[0031] Figure 3 It is a schematic diagram of the front view of part of the structure of the fixing part of the utility model, mainly showing the structure of the roller and the double-sided fixing ropes;

[0032] Figure 4 It is a side view schematic diagram of the internal structure of the fixing part in the utility model;

[0033] Figure 5 It is a schematic diagram of the main structure of the limiting component at the front end of the fixing part in the utility model.

[0034] Explanation of the symbols in the schematic diagram:

[0035] 100, attachment portion; 110, reflective layer; 120, elastic attachment layer; 111, mounting fixture;

[0036] 200, fixing part; 210, fixing attachment layer; 220, fixing installation box; 230, handle; 231, handle rotating rod; 240, center gear; 241, first transmission gear; 242, second transmission gear; 251, first roller; 252, second roller; 253, fixing rope; 254, fixing accessories; 261, limit gear; 262, limit rod. DETAILED DESCRIPTION

[0037] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0038] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0039] In addition, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components; the terms "first", "second", "third", and "fourth" should be understood in a broad sense, and are only used to distinguish feature names, and do not indicate a specific order relationship. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] The utility model is further described below in conjunction with embodiments.

[0041] Example

[0042] Combination Figure 1-Figure 5 , a reflective device for dynamic balance correction that is easy to install in this embodiment includes:

[0043] The attachment part 100, the back side of the attachment part 100 is used to be closely attached to the surface of the rotating shaft, and the front side of the attachment part 100 away from the surface of the rotating shaft is provided with a reflective layer 110; multiple groups of mounting clamps 111 are provided around the attachment part 100;

[0044] The fixing part 200 and the attaching part 100 are installed at different positions on the circumference of the rotating shaft surface. The fixing part 200 is provided with a plurality of fixing ropes 253 that can be retracted and stretched. The outer end of each fixing rope 253 is provided with a fixing accessory 254 that cooperates with the mounting clamp 111. When the fixing rope 253 is stretched, it can extend to connect the fixing accessory 254 with the mounting clamp 111. When the fixing rope 253 is contracted, it can be tightened from all sides of the attaching part 100 so that the back side of the attaching part 100 is tightly attached to the rotating shaft surface.

[0045] The present embodiment eliminates the conventional adhesive pasting form of reflective stickers, wherein a reflective layer 110 is provided on the front side of the attaching portion 100, such as by applying reflective paint, so that the attaching portion 100 acts as a reflective sticker for measuring the rotation speed and phase; the fixing portion 200 acts as an installation connector, and the attaching portion 100 and the fixing portion 200 are designed as a split type, respectively surrounding the opposite sides of the circumference of the rotating shaft, and the fixing portion 200 is tightly wrapped around the surface of the rotating shaft by tightening the surrounding fixing ropes 253, and a mechanical installation form is adopted, in which the attaching portion 100 and the fixing portion 200 cooperate and tighten with each other, which can effectively avoid the situation where the sticker falls off during use, and the above structure, compared with the conventional reflective sticker, has a relatively larger size, is more convenient for on-site operation, and is easy to install.

[0046] In practice, in order to improve the firmness of the position installation, the back side of the attachment part 100 is further provided with an elastic attachment layer 120 for tightly fitting with the surface of the shaft, which can be made of a rubber material layer, and is also conducive to increasing friction; the reflective layer 110 and the elastic attachment layer 120 together constitute the main structure of the attachment part 100, and the installation clamp 111 can be arranged on the reflective layer 110. Correspondingly, the side of the fixed part 200 that abuts against the surface of the shaft is also provided with a fixed attachment layer 210, which can also be made of a rubber material layer, which can ensure that it is tightly wrapped on the outer wall of the shaft.

[0047] In order to facilitate quick connection, in practice, preferably, the mounting fixture 111 on the attachment portion 100 adopts a hook or column structure, and the fixing accessory 254 at the outer end of the fixing rope 253 adopts a fixing ring, and the connection is achieved by hooking the fixing ring on the mounting fixture 111. Figure 1 As shown, the mounting fixture 111 is in the form of a hook. The annular fixing accessory 254 is directly hung on the mounting fixture 111, and then the fixing rope 253 is tightened.

[0048] like Figure 3 and Figure 4As shown, the fixing portion 200 also includes a fixing installation box 220, which is located on a side wall of the fixing attachment layer 210 away from the surface of the rotating shaft, and a roller for installing a fixing rope 253 is provided in the fixing installation box 220, and the two sides of the roller are respectively connected with the fixing rope 253, and the contraction and elongation of the fixing ropes 253 on both sides are controlled by controlling the steering of the roller; the fixing installation box 220 is also provided with a power component for driving the roller to rotate. Specifically, optionally, the power component includes a handle 230 rotatably mounted on the fixed installation box 220. The fixed installation box 220 can adopt a box-type structure. The handle 230 is grasped by a hand to achieve rotation. The center of the handle 230 has a handle rotating rod 231 extending toward the inner side of the fixed installation box 220, and both ends of the handle rotating rod 231 extending into the fixed installation box 220 are rotatably mounted through bearings, so that the handle rotating rod 231 can flexibly rotate around the circumference. A coaxially distributed central gear 240 is provided on the inner end of the handle rotating rod 231 away from the handle 230, and a transmission gear meshing with the central gear 240 is provided on the side of the central gear 240. The central fixed axis of the transmission gear is distributed parallel to the handle rotating rod 231, and the two ends of the central fixed axis of the transmission gear are also rotatably mounted with the two ends of the fixed installation box 220 through bearings. A roller is coaxially mounted on the central fixed axis of the transmission gear. Rotating the handle 230 drives the handle rotating rod 23 to rotate, synchronously drives the rotation of the central gear 240 and the rotation of the transmission gear, and finally drives the roller to rotate synchronously. Furthermore, the first transmission gear 241 and the second transmission gear 242 are respectively meshed on both sides of the central gear 240 in the fixed installation box 220, the first roller 251 is coaxially mounted on the central fixed axis of the first transmission gear 241, the second roller 252 is coaxially mounted on the central fixed axis of the second transmission gear 242, and the first roller 251 and the second roller 252 are respectively provided with fixing ropes 253 on both sides; four groups of mounting clamps 111 are correspondingly provided around the attachment portion 100. Channels for the four groups of fixing ropes 253 to extend out are provided on the side wall of the fixed installation box 220. The connection stability is achieved by tightening the four corners.

[0049] In this embodiment, the lengths of the four groups of fixing ropes 253 can be set to be consistent. When the handle 230 is rotated to tighten the fixing ropes 253, it can ensure that the attachment part 100 and the fixing part 200 are always distributed opposite to each other on the surface of the shaft, and the weight of the attachment part 100 and the fixing part 200 is controlled to be consistent without increasing the imbalance of the system.

[0050] When this embodiment is used, the shaft test needs to be rotated, and it is necessary to ensure the stability of the attachment part 100 and the fixing part 200. Furthermore, a limit assembly is also provided on the fixing installation box 220, and the limit assembly is used to limit the loosening of the fixing rope 253 after the fixing rope 253 is tightened. Figure 5As shown, optionally, the limit assembly includes a limit gear 261 and a limit rod 262. The limit gear 261 is installed outside the fixed installation box 220, and is coaxially installed on the handle rotating rod 231 and rotates synchronously with the handle rotating rod 231; one end of the limit rod 262 is hinged on the fixed installation box 220, and the other end is provided with a hook portion for embedding in the gap between adjacent teeth of the limit gear 261. In practice, other various methods can also be used to achieve the limit of rotation, to ensure that the fixed rope 253 will not loosen with the rotation test process of the rotating shaft after being tightened. It will not be described in detail here.

[0051] The protection scope of the present invention is defined by the claims. Thanks to the teachings of the present invention, those skilled in the art will easily recognize that alternative structures to the structures disclosed in the present invention can be used as feasible alternative embodiments, and that the embodiments disclosed in the present invention can be combined to generate new embodiments, which also fall within the scope of the appended claims.

Claims

1. A reflective device for dynamic balance correction that is easy to install. It is characterized in that include: The attachment part (100) has a back side surface used for being tightly attached to the surface of the rotating shaft, and a reflective layer (110) is provided on the front side surface of the attachment part (100) away from the surface of the rotating shaft; and a plurality of groups of mounting clamps (111) are provided around the attachment part (100); The fixing part (200) and the attaching part (100) are installed at different positions on the circumference of the rotating shaft surface. The fixing part (200) is provided with a plurality of fixing ropes (253) that can be retracted and stretched. The outer end of each fixing rope (253) is provided with a fixing accessory (254) that cooperates with the mounting clamp (111). When the fixing rope (253) is stretched, it can extend to connect the fixing accessory (254) with the mounting clamp (111). When the fixing rope (253) is retracted, it can be tightened from all sides of the attaching part (100) so that the back side of the attaching part (100) is tightly attached to the rotating shaft surface.

2. A reflective device for dynamic balance correction that is easy to install according to claim 1, It is characterized in that The back side of the attachment part (100) has an elastic attachment layer (120) for tightly fitting with the surface of the rotating shaft; the reflective layer (110) and the elastic attachment layer (120) together form the main structure of the attachment part (100); and the mounting clamp (111) is arranged on the reflective layer (110).

3. A reflective device for dynamic balance correction that is easy to install according to claim 1, It is characterized in that The mounting clamp (111) on the attachment portion (100) adopts a hook or column structure, and the fixing accessory (254) at the outer end of the fixing rope (253) adopts a fixing ring, and the connection is achieved by hooking the fixing ring on the mounting clamp (111).

4. A reflective device for dynamic balance correction that is easy to install according to claim 1, It is characterized in that The fixing part (200) comprises: A fixed attachment layer (210) is used to abut against the surface of the rotating shaft; A fixed installation box (220), the fixed installation box (220) is located on a side wall of the fixed attachment layer (210) away from the surface of the rotating shaft, and a roller for installing a fixed rope (253) is provided in the fixed installation box (220), and the two sides of the roller are respectively connected to the fixed rope (253), and the contraction and extension of the fixed ropes (253) on both sides are controlled by controlling the rotation direction of the roller; The fixed installation box (220) is also provided with a power assembly for driving the roller to rotate.

5. A reflective device for dynamic balance correction that is easy to install according to claim 4, It is characterized in that The power assembly comprises a handle (230) which is rotatably mounted on a fixed installation box (220); a handle rotating rod (231) at the center of the handle (230) extends to the inside of the fixed installation box (220), and a central gear (240) is provided at the end thereof; a transmission gear meshing with the central gear (240) is provided at the side thereof; a roller is coaxially mounted on the central fixed axis of the transmission gear; the central gear (240) is driven to rotate by rotating the handle (230), and finally the roller is driven to rotate synchronously.

6. A reflective device for dynamic balance correction that is easy to install according to claim 5, It is characterized in that A first transmission gear (241) and a second transmission gear (242) are respectively meshed on both sides of a central gear (240) in the fixed installation box (220); a first roller (251) is coaxially mounted on the central fixed axis of the first transmission gear (241); a second roller (252) is coaxially mounted on the central fixed axis of the second transmission gear (242); and fixing ropes (253) are respectively arranged on both sides of the first roller (251) and the second roller (252); and four groups of mounting clamps (111) are correspondingly arranged around the attachment portion (100).

7. A reflective device for dynamic balance correction that is easy to install according to claim 5, It is characterized in that The fixed installation box (220) is also provided with a limiting component, which is used to limit the loosening of the fixing rope (253) after the fixing rope (253) is tightened.

8. A reflective device for dynamic balance correction that is easy to install according to claim 7, It is characterized in that The limiting assembly comprises a limiting gear (261) and a limiting rod (262); the limiting gear (261) is coaxially mounted on the handle rotating rod (231) and rotates synchronously with the handle rotating rod (231); one end of the limiting rod (262) is hinged on the fixed installation box (220), and the other end is provided with a hook portion for embedding in the gap between adjacent teeth of the limiting gear (261).

9. A reflective device for dynamic balance correction that is easy to install according to claim 4, It is characterized in that The fixed attachment layer (210) is made of elastic material.

10. A reflective device for dynamic balance correction that is easy to install according to any one of claims 4 to 9, It is characterized in that The fixed installation box (220) is a shell structure having an installation inner cavity, and a channel for the fixed rope (253) to extend is provided on the side wall of the shell structure.

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