Axial positioning device of dynamic balancing machine

Abstract

The utility model discloses an axial positioning device of a dynamic balancing machine, which comprises a first positioning frame and a second positioning frame, the first positioning frame and the second positioning frame are symmetrically arranged to form an axial positioning main body structure of the dynamic balancing machine, and a transverse supporting part is arranged between the first positioning frame and the second positioning frame. An axial positioning eliminating structure in positioning contact with a fan rotor is installed on the transverse supporting part, the first positioning frame and the second positioning frame are connected with a dynamic balancing machine sliding way, and the distance between the transverse supporting part between the first positioning frame and the second positioning frame can be adjusted up and down in the vertical direction of the first positioning frame and the second positioning frame. The inner walls of the first positioning frame and the second positioning frame are provided with installation grooves used for containing the transverse supporting part to slide up and down, and vertical through holes are fixedly formed in the positions, making contact with the transverse supporting part, of the inner walls of the first positioning frame and the second positioning frame.

Description

Technical Field

[0001] The utility model relates to the field of axial positioning of fans of belt-driven dynamic balancing machines, in particular to an axial positioning device for dynamic balancing machines. Background Art

[0002] At present, dynamic balancing is a basic common problem that must be solved in the production and manufacturing process of rotating products. Its quality directly determines the working performance and service life of the product, and has a huge impact on the quality of the product. In particular, as the equipment is developing towards high speed, high efficiency and high precision, the dynamic balancing problem has become increasingly prominent. The working speed of a large number of products has increased from thousands of revolutions per minute to tens of thousands or even tens of thousands of revolutions per minute, which has brought about many problems directly related to the dynamic balancing performance of the rotor, such as increased vibration intensity, increased noise in use, and shortened product life, resulting in low quality and low price. At present, the axial positioning device adapted to the dynamic balancing machine uses rolling / bearings to position the edge of the fan. Most of the fans have insufficient processing accuracy, and are severely deformed after operation. Axial impact occurs during dynamic balancing, affecting the balancing accuracy and data distortion, and generating noise pollution. With the acceleration of production rhythm and continuous production, the requirements for dynamic balancing accuracy and work efficiency are getting higher and higher. The existing dynamic balancing axial positioning device cannot meet the needs of the rotor dynamic balancing technology in terms of balancing accuracy and quality, and it is difficult to meet the needs of the product development towards high performance. Therefore, it is necessary to develop high-precision and high-quality dynamic balancing machines. Utility Model Content

[0003] The purpose of the utility model is to provide an axial positioning device for a dynamic balancing machine to solve the problems raised in the above background technology.

[0004] The purpose of the utility model is achieved through the following technical solutions: an axial positioning device for a dynamic balancing machine, comprising a first positioning frame and a second positioning frame, wherein the first positioning frame and the second positioning frame are symmetrically arranged to form an axial positioning main structure of the dynamic balancing machine, and a transverse support portion is arranged between the first positioning frame and the second positioning frame, and an axial positioning elimination structure that contacts with the fan rotor is installed on the transverse support portion;

[0005] The first positioning frame and the second positioning frame are connected to the slideway of the dynamic balancing machine;

[0006] The transverse support portion between the first positioning frame and the second positioning frame can adjust the distance up and down along the vertical direction of the first positioning frame and the second positioning frame.

[0007] Furthermore, the inner walls of the first and second positioning frames are provided with mounting grooves for accommodating the up and down sliding of the lateral support portion, and the inner walls of the first and second positioning frames are provided with vertical through holes fixedly provided at positions in contact with the lateral support portion.

[0008] Furthermore, threaded positioning holes are provided at both ends of the lateral support portion, and the threaded positioning holes are matched with the through holes through bolt connecting rods;

[0009] A positioning slot hole of an axial positioning elimination structure is provided on the transverse end surface of the transverse support portion.

[0010] Furthermore, the axial positioning elimination structure includes a front fixing body and a positioning rod connected to the front fixing body, and the rear end of the positioning rod passes through the positioning slot hole of the axial positioning elimination structure and is fixed by a nut.

[0011] Furthermore, the front fixing body is a pin structure, and bearings are arranged at the front and rear of the front fixing body and the positioning rod to drive the pin at the front end of the front fixing body to rotate.

[0012] Furthermore, the first positioning frame and the second positioning frame are detachably connected to the slideway of the dynamic balancing machine, and the first positioning frame and the second positioning frame can be adjusted forward and backward.

[0013] Furthermore, the first positioning frame and the second positioning frame are detachably connected to the slideway of the dynamic balancing machine by bolts.

[0014] Furthermore, the first positioning frame and the second positioning frame are upright steel frames composed of I-beams or H-beams, and the bottoms of the first positioning frame and the second positioning frame are connected to the positioning connection ends by welding, and the positioning connection ends are steel structures.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses an axial positioning device for a dynamic balancing machine, which eliminates axial force by axially positioning the rotor axis position, provides stable rotation, eliminates noise pollution, improves balancing accuracy and increases operating efficiency.

[0017] The direct economic benefits of this utility model include providing effective technical data, saving operation time, reducing labor costs and material consumption, reducing 2 hours per dynamic balancing operation, and saving about 95,000 yuan in labor costs throughout the year. The indirect economic benefits include ensuring dynamic balancing accuracy, improving maintenance quality, extending operating time, and reducing spare parts consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of the utility model having a positioning slot;

[0020] Figure 3 It is a plan view schematic diagram of the utility model having a through hole;

[0021] Figure 4 It is a schematic diagram of the axial positioning elimination structure of the utility model. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figure 1-4 As shown, an axial positioning device for a dynamic balancing machine comprises a first positioning frame 1 and a second positioning frame 2, wherein the first positioning frame 1 and the second positioning frame 2 are symmetrically arranged to form an axial positioning main structure of the dynamic balancing machine, and a transverse support portion 3 is arranged between the first positioning frame 1 and the second positioning frame 2, and an axial positioning elimination structure 5 that contacts with a fan rotor for positioning is installed on the transverse support portion 3;

[0026] The first positioning frame 1 and the second positioning frame 2 are connected to the slideway of the dynamic balancing machine;

[0027] The transverse support portion 3 between the first positioning frame 1 and the second positioning frame 2 can adjust the distance up and down along the vertical direction of the first positioning frame 1 and the second positioning frame 2 .

[0028] In order to facilitate the adjustment of the vertical position of the lateral support part 3 according to the installation position when in use, the inner walls of the first positioning frame 1 and the second positioning frame 2 are provided with installation grooves for accommodating the up and down sliding of the lateral support part 3, and the inner walls of the first positioning frame 1 and the second positioning frame 2 are fixed with vertical through holes 8 at the contact position with the lateral support part 3.

[0029] In order to facilitate the axial positioning of the rotor axis to eliminate the axial force and provide stable rotation in the use state, threaded positioning holes are provided at both ends of the lateral support portion 3, and the threaded positioning holes are matched with the through holes 8 through bolt connecting rods;

[0030] A positioning slot hole of the axial positioning elimination structure 5 is opened on the lateral end surface of the lateral support portion 3 .

[0031] The axial positioning elimination structure 5 includes a front fixing body 6 and a positioning rod 7 connected to the front fixing body 6. The rear end of the positioning rod 7 passes through the positioning slot hole of the axial positioning elimination structure 5 and is fixed by a nut.

[0032] In order to facilitate contact positioning of the fan rotor by the front fixing body 6 when in use, the front fixing body 6 is a pin structure, and bearings 9 are provided before and after the front fixing body 6 and the positioning rod 7 to drive the top of the front end of the front fixing body 6 to rotate.

[0033] In order to facilitate the determination of the axial force direction according to the fan structural characteristics and determine the installation position of the device when in use, the first positioning frame 1 and the second positioning frame 2 are detachably connected to the dynamic balancing machine slideway and can be adjusted forward and backward.

[0034] In order to facilitate detachable replacement in use, the first positioning frame 1 and the second positioning frame 2 are detachably connected to the slideway of the dynamic balancing machine by bolts.

[0035] The first positioning frame 1 and the second positioning frame 2 are vertical steel frames composed of I-beams or H-beams, and the bottoms of the first positioning frame 1 and the second positioning frame 2 are connected to the positioning connection end 4 by welding, and the positioning connection end 4 is a steel structure.

[0036] The utility model determines the direction of the axial force according to the structural characteristics of the fan, determines the installation position of the device, installs a first positioning frame 1 and a second positioning frame 2 on one side of the dynamic balancing machine, installs a transverse support portion 3 and an axial positioning elimination structure 5 on the first positioning frame 1 and the second positioning frame 2, and adjusts the upright steel frame, the upper and lower transverse support portions 3, and the axial positioning elimination structure 5 front and back.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An axial positioning device for a dynamic balancing machine, characterized in that: The invention comprises a first positioning frame (1) and a second positioning frame (2), wherein the first positioning frame (1) and the second positioning frame (2) are symmetrically arranged to form an axial positioning main structure of a dynamic balancing machine, and a transverse support portion (3) is arranged between the first positioning frame (1) and the second positioning frame (2), and an axial positioning elimination structure (5) which is in positioning contact with a fan rotor is installed on the transverse support portion (3); The first positioning frame (1) and the second positioning frame (2) are connected to the slideway of the dynamic balancing machine; The transverse support portion (3) between the first positioning frame (1) and the second positioning frame (2) can adjust the distance up and down along the vertical direction of the first positioning frame (1) and the second positioning frame (2).

2. The axial positioning device for a dynamic balancing machine according to claim 1, characterized in that: The inner walls of the first positioning frame (1) and the second positioning frame (2) are provided with mounting grooves for accommodating the up and down sliding of the transverse support portion (3), and the inner walls of the first positioning frame (1) and the second positioning frame (2) are fixedly provided with vertical through holes (8) at the contact positions with the transverse support portion (3).

3. The axial positioning device for a dynamic balancing machine according to claim 2, characterized in that: Both ends of the transverse support portion (3) are provided with threaded positioning holes, and the threaded positioning holes are matched with the through holes (8) through bolt connecting rods; A positioning slot hole of an axial positioning elimination structure (5) is provided on the transverse end surface of the transverse support portion (3).

4. The axial positioning device for a dynamic balancing machine according to claim 3, characterized in that: The axial positioning elimination structure (5) comprises a front fixing body (6) and a positioning rod (7) connected to the front fixing body (6); the rear end of the positioning rod (7) passes through the positioning slot hole of the axial positioning elimination structure (5) and is fixed by a nut.

5. The axial positioning device for a dynamic balancing machine according to claim 4, characterized in that: The front fixing body (6) is a pin structure, and bearings (9) are provided at the front and rear of the front fixing body (6) and the positioning rod (7) to drive the pin at the front end of the front fixing body (6) to rotate.

6. The axial positioning device for a dynamic balancing machine according to claim 5, characterized in that: The first positioning frame (1) and the second positioning frame (2) are detachably connected to the slideway of the dynamic balancing machine, and the first positioning frame (1) and the second positioning frame (2) can be adjusted forward and backward.

7. The axial positioning device for a dynamic balancing machine according to claim 6, characterized in that: The first positioning frame (1) and the second positioning frame (2) are detachably connected to the slideway of the dynamic balancing machine by bolts.

8. The axial positioning device for a dynamic balancing machine according to claim 7, characterized in that: The first positioning frame (1) and the second positioning frame (2) are upright steel frames formed by I-beams or H-beams, and the bottoms of the first positioning frame (1) and the second positioning frame (2) are connected to the positioning connection end (4) by welding, and the positioning connection end (4) is a steel structure.

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