Static balance testing device for flywheel of mechanical press
By designing a flywheel static balance test device including a base, support seat, V-shaped bracket and transmission mechanism, the rotation imbalance caused by uneven quality of the flywheel of the mechanical press is solved, and a static balance with ease of operation and low cost is achieved Test, wide application range and good shock absorption effect.
Patent Information
- Application Number
- CN202420705332.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-08
AI Technical Summary
During the production process of mechanical press flywheels, there are often problems of uneven mass and asymmetric quality, resulting in unbalanced rotation of the flywheel, causing bearing wear, affecting mechanical performance and service life. The existing static balance test devices are not easy to replace and are not universal.
A flywheel static balance test device including a base, support seat, V-bracket and transmission mechanism is designed. The V-bracket is cast in one piece, low cost and easy to replace. The transmission mechanism is passed through transmission shaft, bearing, disc and liner. The sleeve realizes the static balance test of the flywheel, and the supporting seat and V-shaped bracket split design, with a wide range of applications.
The flywheel static balance test is easy to operate, and the test can be completed with only a small force. The split design and integrated casting of the V-shaped bracket reduce the replacement cost and improve the scope of application, and has shock absorption effect.
Smart Images
Figure CN222280034U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of static balance testing of mechanical parts, in particular to a static balance testing device for a mechanical press flywheel. Background Art
[0002] The flywheel is an important component of the mechanical press. It is made of cast steel. During production, it is inevitable that the mass will be unevenly and asymmetrically distributed around the circle. If the above problems occur, the flywheel will be unbalanced when rotating. The imbalance will cause the mechanical press flywheel bearing to be unbalanced and cause bearing wear, thereby affecting the geometric accuracy of the mechanical press, reducing the mechanical performance of the mechanical press, and shortening the service life of the press. Therefore, the mechanical press flywheel must be subjected to a static balance test after processing.
[0003] For example, the utility model patent with Chinese patent publication number CN203949757U discloses a static balance test device for a press flywheel, in which parts of the support discs on the two balance shafts overlap each other, and the tops of the overlapping parts of the two support discs form a V-shaped support groove, which is located outside the top of the support plate. The V-shaped support groove in the above patent is formed by the overlap of two discs. This V-shaped support groove can only be used for the static balance test device for a press flywheel, and is not universal on other related mechanical equipment, and is not convenient to replace after damage. Utility Model Content
[0004] In order to solve the problems existing in the prior art, the utility model aims to provide a mechanical press flywheel static balance test device, the flywheel static balance test device provides a V-shaped bracket with low cost, easy replacement and wide application range.
[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:
[0006] A mechanical press flywheel static balance test device comprises a base, a support seat, a V-shaped bracket and a transmission mechanism, wherein two support seats are mounted on the base; an integrally cast V-shaped bracket is mounted on each support seat, and two ends of the transmission mechanism are respectively mounted on the two V-shaped brackets;
[0007] The transmission mechanism includes a transmission shaft, bearings, a disc and a bushing, wherein one bearing is installed at each end of the transmission shaft, and two bearings are placed on two V-shaped brackets respectively; two discs are fixed on the transmission shaft, and the two discs are located on both sides of the center hole of the flywheel to be tested; the two bushings are respectively tightened in the gap between the inner wall of the center hole of the flywheel to be tested and the two discs, so that the disc and the flywheel to be tested rotate in coordination; an external force is applied to the flywheel to be tested, and when the flywheel to be tested rotates under the force, the disc and the transmission shaft are driven to rotate, and the transmission shaft drives the bearings to rotate, thereby completing the static balance test of the flywheel to be tested.
[0008] Furthermore, a plurality of T-shaped slots are provided on the upper surface of the support seat, and T-shaped bolts and nuts are installed in the T-shaped slots to prevent the V-shaped bracket from deviating.
[0009] Furthermore, the two V-shaped brackets are symmetrically arranged, and the inner side of each V-shaped bracket is flush with the inner side of the corresponding support seat.
[0010] Furthermore, the bushing is a half-section L-shaped annular structure, and the outer side of each bushing radial ring body is connected to the outer side of the corresponding disc by bolts.
[0011] Furthermore, a plurality of threaded holes 1 are provided on the radial ring body of each bushing, and a plurality of threaded holes 2 are provided on the outer side of each disc, and bolts pass through the threaded holes 1 and 2 in sequence to connect and fix the bushing and the disc.
[0012] Furthermore, the outer side surface of the axial ring body of the bushing is provided with a taper, so that the outer peripheral surface is a conical surface.
[0013] Furthermore, the center holes of the two disks are welded to the transmission shaft.
[0014] Furthermore, shaft shoulders are provided at both ends of the transmission shaft, and the shaft shoulders are interference fit with the bearings.
[0015] Furthermore, a plurality of T-slots are provided on the base, and T-bolts and nuts are installed in the T-slots to prevent the support seat from deviating.
[0016] Furthermore, the base is a hollow structure.
[0017] Compared with the prior art, the mechanical press flywheel static balance test device described in the utility model has the following advantages:
[0018] (1) The mechanical press flywheel static balance test device described in the utility model only needs to apply a small force to the flywheel during the static balance test to observe the static balance performance of the flywheel. When the flywheel to be tested is rotated under force, the bushing is driven to rotate together. The bushing drives the disc and the transmission shaft to rotate through the bolts. The transmission shaft drives the bearing to rotate, thereby completing the static balance test of the flywheel to be tested. The operation is simple.
[0019] (2) Compared with the prior art, the mechanical press flywheel static balance test device described in the utility model has a separate design of the support seat and the V-shaped bracket. The V-shaped bracket has a low manufacturing cost, is easy to replace, and has a wide range of applications. In addition, the V-shaped bracket is cast in one piece and has a shock-absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:
[0021] Figure 1 A side view of the overall structure provided by an embodiment of the utility model;
[0022] Figure 2 A front view of the overall structure provided for an embodiment of the utility model;
[0023] Figure 3 A schematic diagram of a transmission mechanism provided in an embodiment of the utility model;
[0024] Figure 4 A schematic diagram of a disc structure provided in an embodiment of the utility model;
[0025] Figure 5 A schematic diagram of a bushing structure provided in an embodiment of the utility model.
[0026] Description of reference numerals:
[0027] 1. Base; 2. Support seat; 3. V-shaped bracket; 4. Transmission mechanism; 41. Bearing; 42. Bushing; 43. Transmission shaft; 44. Bolt; 45. Disc; A. Flywheel to be tested. DETAILED DESCRIPTION
[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like 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 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 present utility model. In addition, the terms "first", "second", etc. 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, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0032] like Figures 1 to 5 As shown, a static balance test device for a mechanical press flywheel comprises a base 1, a support seat 2, a V-shaped bracket 3 and a transmission mechanism 4, wherein two parallel support seats 2 are mounted on the base 1; an integrally cast V-shaped bracket 3 is mounted on each support seat 2, and two ends of the transmission mechanism 4 are respectively mounted on the two V-shaped brackets 3;
[0033] The transmission mechanism 4 includes a transmission shaft 43, a bearing 41, a disc 45, a bushing 42 and a bolt 44. A bearing 41 is installed at each end of the transmission shaft 43, and the two bearings 41 are placed on two V-shaped brackets 3 respectively; two discs 45 are fixed on the transmission shaft 43, and the two discs 45 are located on both sides of the center hole of the flywheel to be tested; the two bushings 42 are respectively tightened in the gap between the inner wall of the center hole of the flywheel to be tested and the two discs 45, so that the discs and the flywheel to be tested rotate in coordination; an external force is applied to the flywheel A to be tested, and when the flywheel A to be tested rotates under the force, it drives the disc 45 and the transmission shaft 43 to rotate, and the transmission shaft 43 drives the bearing 41 to rotate, thereby completing the static balance test of the flywheel A to be tested.
[0034] In a preferred embodiment of the utility model, the bushing is a half-section L-shaped annular structure, and the outer side of the radial ring body of each bushing 42 is connected to the outer side of the corresponding disc 45 by the bolt 44. In actual use, the outer side of the bushing 42 is connected to the outer side of a disc 45 by the bolt 44, so that the bushing 42 and the disc 45 are more firmly connected, so that when the flywheel A to be tested is rotated under force, the bushing 42 and the disc 45 are driven to rotate.
[0035] In a preferred embodiment of the utility model, the V-shaped bracket 3 is an integrally cast shock-absorbing casting; the two V-shaped brackets 3 are symmetrically arranged, and the inner side of each V-shaped bracket 3 is flush with the inner side of the corresponding support seat 2; a plurality of T-shaped slots are provided on the upper surface of the support seat 2, and T-shaped bolts and nuts are installed in the T-shaped slots to prevent the V-shaped bracket from deviating.
[0036] In actual use, the V-shaped bracket 3 is likely to deviate only when the flywheel to be tested is first suspended on the V-shaped bracket 3. T-shaped nuts can be installed in advance to prevent deviation. Under normal circumstances, the V-shaped bracket 3 will not deviate. In this embodiment, the V-shaped bracket 3 is cast in one piece through ductile iron material and has a good shock-absorbing effect. The V-shaped bracket 3 has a low manufacturing cost and a wide range of applications. During the machining process, general workpieces can be placed on the V-shaped bracket for machining.
[0037] In a preferred embodiment of the present invention, the center holes of the two disks 45 are welded to the transmission shaft 43 .
[0038] In a preferred embodiment of the utility model, the transmission shaft 43 is provided with shaft shoulders at both ends, and the shaft shoulders are interference fit with the bearing 41. In actual use, the shaft shoulders and the bearing 41 are assembled by interference fit, the friction force is small, so that the inner ring of the bearing 41 and the shaft shoulders do not rotate relative to each other, and the flexibility of rotation is increased.
[0039] In a preferred embodiment of the utility model, the axial ring body of each bushing 42 is provided with a taper, so that the outer peripheral surface is a tapered surface, and the radial ring body of each bushing 42 is provided with a plurality of threaded holes 1, corresponding to each of the outer sides of the disc 45, a plurality of threaded holes 2 are opened, and the bolts 44 pass through the threaded holes 1 and 2 in sequence to connect and fix the bushing 42 and the disc 45. In actual use, the pitch circle diameter and thread size of the threaded holes 1 and 2 are the same; Figure 5 As shown, the radial ring body of the bushing 42 is provided with a taper (the taper is determined according to the actual situation) so that the outer peripheral surface is a conical surface, and the bushing 42 can easily penetrate into the gap between the inner hole of the flywheel A to be tested and the disc 45 and form a line contact; when the flywheel A to be tested is rotated under force, the bushing 42 is driven to rotate together, and the bushing 42 transmits the external force to the disc 45 and the transmission shaft 43 through the bolts, and the transmission shaft 43 finally drives the bearing 41 to rotate.
[0040] In a preferred embodiment of the utility model, the base 1 is provided with a plurality of T-slots, and T-nuts are installed in the T-slots to prevent the support base 2 from deviating. In actual use, the support base 2 will not deviate under normal circumstances, and T-nuts can be installed in advance to prevent the support base 2 from deviating under sudden circumstances; the base 1 is a hollow structure to reduce the weight of the device.
[0041] Working principle of the mechanical press flywheel static balance test device:
[0042] Before the flywheel static balance test, first install two bearings 41 at both ends of the transmission shaft 43 respectively, so that the inner ring of the bearing 41 is tightly matched with the outer circle of the transmission shaft 43; place the two discs 45 on the transmission shaft 43 in the center hole of the flywheel A to be tested that has been machined; install the radial ring part of a bushing 42 into the gap between the inner hole of the flywheel A to be tested and the disc 45, and when the bushing 42 is installed into the inner hole of the flywheel A to be tested, use a copper rod to tap the bushing 42 evenly and slowly, and after the bushing 42 and the inner hole of the flywheel A to be tested are tightened, use bolts 44 to connect the bushing 42 and the disc 45 together; install a bushing 42 on the other side of the inner hole, and after completion, hoist the flywheel A to be tested as a whole onto the arranged base 1.
[0043] Start the flywheel static balance test, make a mark at an appropriate position on the side of the flywheel A to be tested, apply external force to the flywheel A to be tested to make it rotate. When the mass of the flywheel A to be tested is evenly and symmetrically distributed around the circumference, the mark on the flywheel A to be tested will not stop at the same position after multiple rotations and stopping the force. If the mass of the flywheel A to be tested is unevenly and asymmetrically distributed around the circumference, stop applying force to the flywheel A, and the mark on the flywheel A to be tested will stop at the same position, thereby measuring the static balance of the press flywheel.
[0044] The mechanical press flywheel static balance test device has reasonable structure and is easy to operate. When performing the static balance test, only a small force needs to be applied to the flywheel to observe the static balance performance of the flywheel.
[0045] 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 mechanical press flywheel static balance test device, comprising a base (1) and a support base (2), wherein two support bases (2) are mounted on the base (1); characterized in that: It also comprises a V-shaped bracket (3) and a transmission mechanism (4), wherein each of the support seats (2) is mounted with an integrally cast V-shaped bracket (3), and the two ends of the transmission mechanism (4) are respectively mounted on two of the V-shaped brackets (3); The transmission mechanism (4) comprises a transmission shaft (43), a bearing (41), a disc (45) and a bushing (42). One bearing (41) is respectively installed at both ends of the transmission shaft (43), and two bearings (41) are respectively placed on two V-shaped brackets (3); two discs (45) are fixed on the transmission shaft (43), and the two discs (45) are located on both sides of the center hole of the flywheel to be tested; the two bushings (42) are respectively tightened in the gap between the inner wall of the center hole of the flywheel to be tested and the two discs (45), so that the discs (45) and the flywheel to be tested rotate in coordination; an external force is applied to the flywheel to be tested (A), and when the flywheel to be tested (A) rotates under the force, the disc (45) and the transmission shaft (43) are driven to rotate, and the transmission shaft (43) drives the bearings (41) to rotate, thereby completing the static balance test of the flywheel to be tested (A).
2. The static balance test device for a mechanical press flywheel according to claim 1, characterized in that: The upper surface of the support seat (2) is provided with a plurality of T-shaped slots, in which T-shaped bolts and nuts are installed to prevent the V-shaped bracket (3) from deviating.
3. The mechanical press flywheel static balance test device according to claim 1, characterized in that: The two V-shaped brackets (3) are symmetrically arranged, and the inner side of each V-shaped bracket (3) is flush with the inner side of the corresponding support seat (2).
4. The mechanical press flywheel static balance test device according to claim 1, characterized in that: The bushing (42) is a half-section L-shaped annular structure, and the outer side of the radial ring body of each bushing (42) is connected to the outer side of the corresponding disc (45) through a bolt (44).
5. The static balance test device for a mechanical press flywheel according to claim 4, characterized in that: A plurality of threaded holes 1 are formed on the radial ring body of each bushing (42), and a plurality of threaded holes 2 are formed on the outer side of each disk (45). Bolts (44) pass through the threaded holes 1 and 2 in sequence to connect and fix the bushing (42) and the disk (45).
6. The mechanical press flywheel static balance test device according to claim 4, characterized in that: The outer side surface of the axial ring body of each bushing (42) is provided with a taper, so that the outer peripheral surface is a conical surface.
7. The static balance test device for a mechanical press flywheel according to claim 1, characterized in that: The center holes of the two disks (45) are welded to the transmission shaft (43).
8. The mechanical press flywheel static balance test device according to claim 1, characterized in that: Shaft shoulders are provided at both ends of the transmission shaft (43), and the shaft shoulders are interference fit with the bearing (41).
9. The mechanical press flywheel static balance test device according to claim 1, characterized in that: The base (1) is provided with a plurality of T-shaped slots, in which T-shaped bolts and nuts are installed to prevent the support seat (2) from deviating.
10. The mechanical press flywheel static balance test device according to claim 1, characterized in that: The base (1) is a hollow structure.