Assistive device for vibration test of electric bicycle frame
By designing an auxiliary equipment for electric bicycle frame vibration testing with adjustable roof, transition plate and bottom plate, the problem that the existing technology cannot adapt to different specifications of frames is solved, and efficient and safe frame vibration testing is achieved.
Patent Information
- Application Number
- CN202421519352.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-05-13
- Filing Date
- 2024-06-28
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The existing electric bicycle frame vibration test tooling and auxiliary tools cannot adapt to different specifications of seat bucket frames, resulting in increased time and funding costs and reduced work efficiency.
An auxiliary equipment for vibration testing of electric bicycle frames including roof plate, transition plate and bottom plate is designed. By setting bar holes on these plates and adjusting the frame height and length through the fitting of these holes, it is suitable for frames of different specifications.
This auxiliary tool can quickly adapt to frames of different sizes and specifications, improves work efficiency, ensures safety and reliability of vibration testing, and reduces production costs.
Smart Images
Figure CN222671367U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vibration test of electric bicycle frames, and in particular relates to an auxiliary tool for vibration test of electric bicycle frames. Background Art
[0002] The vibration test of the electric bicycle frame is of great significance to ensure the strength, safety and reliability of the whole vehicle. Through the vibration test, the design, manufacturing and assembly quality of the electric bicycle can be comprehensively evaluated, providing manufacturers with a basis for improving products and providing consumers with safer and more reliable electric bicycle products.
[0003] When conducting vibration tests on electric bicycle frames, auxiliary tooling is required to fix a certain mass of weight on the frame. The current tooling is suitable for previous saddle-type frames. With the increase in various frame structures, the number of bucket-type frame structures has gradually increased, and the sizes and specifications have increased at any time. Only suitable tooling can be made separately for products of the same specifications, which not only increases time and financial costs, but also reduces work efficiency. The existing tooling can no longer meet the test requirements of bucket-type structure frames.
[0004] It can be seen that when conducting vibration tests on electric bicycle frames, due to the different sizes and specifications of bucket-type structure frames, existing tooling and auxiliary tools can only be used for frames of a single specification. Utility Model Content
[0005] In order to overcome the above technical defects, the utility model provides an auxiliary tool for vibration testing of an electric bicycle frame, which can solve the technical problem that the existing tooling auxiliary tools have poor versatility.
[0006] In order to achieve the above purpose, the utility model adopts the following technical contents:
[0007] An auxiliary tool for vibration testing of an electric bicycle frame, comprising a top plate, a transition plate and a bottom plate connected in sequence from top to bottom;
[0008] A plurality of first strip-shaped holes are formed on the end surface of one end of the top plate, and a plurality of second strip-shaped holes are formed on the end surface of the other end of the top plate;
[0009] A plurality of third strip holes are formed on the end surface of one end of the transition plate, and a plurality of fourth strip holes are formed on the end surface of the other end;
[0010] A sixth strip hole is opened in the middle of the end surface of the bottom plate; a fifth strip hole is opened on one side of the sixth strip hole, and a seventh strip hole is opened on the other side;
[0011] The top plate is connected to the transition plate through the cooperation of the second strip hole and the third strip hole; the second strip hole and the third strip hole are both arranged along the vertical direction parallel to the frame;
[0012] The transition plate is connected to the bottom plate through the cooperation of the fourth strip hole and the sixth strip hole; the fourth strip hole and the sixth strip hole are both arranged along an axial direction parallel to the frame.
[0013] Furthermore, the top plate is L-shaped; the first strip holes are arranged in a row on the horizontal end surface of the top plate; and the second strip holes are arranged in a row on the vertical end surface of the top plate.
[0014] Furthermore, a plurality of bolt holes for connecting the weight blocks are provided on the horizontal end surface of the top plate.
[0015] Furthermore, a first reinforcing rib is provided at the bending portion of the top plate.
[0016] Furthermore, the transition plate is L-shaped; the third strip holes are arranged in a row on the vertical end surface of the transition plate; and the fourth strip holes are arranged in a row on the horizontal end surface of the transition plate.
[0017] Furthermore, a second reinforcing rib is provided at the bending portion of the transition plate.
[0018] Furthermore, the first strip-shaped hole and the fifth strip-shaped hole are arranged on the same side of the transition plate.
[0019] Furthermore, the first strip-shaped hole and the fifth strip-shaped hole are disposed on two sides of the transition plate.
[0020] Furthermore, the sixth strip-shaped hole is perpendicular to the fifth strip-shaped hole and the seventh strip-shaped hole respectively.
[0021] Furthermore, the top plate, the transition plate and the bottom plate are all made of No. 45 steel.
[0022] Compared with the prior art, the utility model has the following beneficial effects:
[0023] The utility model provides an auxiliary tool for vibration testing of an electric bicycle frame. The auxiliary tool is provided with a top plate, a transition plate and a bottom plate which are connected in sequence, and a first strip hole and a second strip hole are respectively opened on both end surfaces of the top plate, a third strip hole and a fourth strip hole are respectively opened on both end surfaces of the transition plate, and a fifth strip hole, a sixth strip hole and a seventh strip hole are opened on the bottom plate; when performing a vibration test, the first strip hole of the top plate, the fifth strip hole and the seventh strip hole of the bottom plate are respectively pre-tightened and connected with the frame, the height of the frame is matched by adjusting the vertical position of the second strip hole and the third strip hole, the length of the frame is matched by adjusting the horizontal position of the fourth strip hole and the sixth strip hole, a weight block is installed on the top plate, and the top plate, the transition plate and the bottom plate are fastened to perform a vibration test of the frame; due to the arrangement of the strip holes on the top plate, the transition plate and the bottom plate, it is convenient to adapt to the sizes and specifications of different frames to be tested, the work efficiency is improved and a safe and reliable vibration test is guaranteed; the auxiliary tool has a simple structure and principle, is easy to operate, and has a good value for popularization and application.
[0024] Preferably, in the utility model, a plurality of bolt holes are provided on the horizontal end surface of the top plate to facilitate installation of load-bearing blocks of different specifications.
[0025] Preferably, in the utility model, reinforcing ribs are provided at the bending parts of the top plate and the transition plate, so as to improve the structural strength and the anti-twisting and anti-deformation performance, and ensure the stability and reliability of the vibration test.
[0026] Preferably, in the present invention, the top plate, the transition plate and the bottom plate are all made of No. 45 steel, which has high yield strength and tensile strength and good toughness, thereby ensuring the stable performance of the auxiliary tool. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 A schematic diagram of the structure of an auxiliary tool for vibration testing of an electric bicycle frame provided by an embodiment of the utility model;
[0028] Figure 2 A schematic diagram of the top plate structure of an auxiliary tool for vibration testing of an electric bicycle frame provided in an embodiment of the utility model;
[0029] Figure 3 A schematic diagram of the transition plate structure of an auxiliary tool for vibration testing of an electric bicycle frame provided in an embodiment of the utility model;
[0030] Figure 4 A schematic diagram of the bottom plate structure of an auxiliary tool for vibration testing of an electric bicycle frame provided in an embodiment of the utility model;
[0031] Figure 5A connection structure diagram of an auxiliary tool for vibration testing of an electric bicycle frame provided by an embodiment of the utility model, (a) is a first form; (b) is a second form;
[0032] Figure 6 A working state diagram of an auxiliary tool for vibration testing of an electric bicycle frame provided in an embodiment of the utility model.
[0033] Reference numerals:
[0034] Top plate-1; transition plate-2; bottom plate-3; frame-4; load-bearing block-5;
[0035] First strip hole-1-1; bolt hole-1-2; second strip hole-1-3; first reinforcing rib-1-4;
[0036] The third strip hole-2-1; the fourth strip hole-2-2; the second reinforcing rib-2-3;
[0037] The fifth strip-shaped hole is 3-1; the sixth strip-shaped hole is 3-2; the seventh strip-shaped hole is 3-3. DETAILED DESCRIPTION
[0038] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the following specific embodiments further describe the utility model in detail. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme 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 part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0042] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does 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 utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0043] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0044] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 indirectly connected 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 utility model can be understood according to specific circumstances.
[0045] The utility model is further described in detail below with reference to the accompanying drawings:
[0046] Example
[0047] As mentioned in the background technology, when conducting a vibration test on an electric bicycle frame, it is necessary to use auxiliary tooling to fix a certain mass of weight (within 800N) on the frame; the current tooling aids are suitable for the previous saddle-type frames. With the increase in various frame structures, the number of bucket-type frame structures has gradually increased, and the sizes and specifications have increased at any time. Only suitable tooling aids can be made separately for products of the same specifications, which not only increases time and financial costs, but also reduces work efficiency; the existing tooling aids can no longer meet the test requirements of bucket-type structure frames.
[0048] In order to solve the above problems, the present embodiment provides an auxiliary device for vibration testing of an electric bicycle frame, which solves the problem of fixing the weight block of electric bicycle frames of different types or structures during vibration tests. By adopting this auxiliary device, it is possible to match bucket-type frames of different specifications, and the frame adaptation can be completed through simple adjustment, thereby improving work efficiency and meeting the test requirements of the frame vibration test.
[0049] like Figure 1 As shown, this embodiment provides an auxiliary tool for vibration testing of an electric bicycle frame, comprising a top plate 1, a transition plate 2 and a bottom plate 3, wherein the top plate 1, the transition plate 2 and the bottom plate 3 are connected in pairs from top to bottom.
[0050] Here, in order to ensure the strength and toughness of the structure, the top plate 1, the transition plate 2 and the bottom plate 3 are preferably made of 45 steel.
[0051] In order to solve the above-mentioned problem of adapting frames of different specifications, a number of strip holes are opened on the top plate 1, the transition plate 2 and the bottom plate 3. The specific structure is as follows:
[0052] like Figure 2 As shown, Figure 2 The specific structure of the top plate 1 is that the top plate 1 is an L-shaped structure as a whole (composed of a horizontal fixing plate and a vertical fixing plate). Three bolt holes 1-2 are opened on the end face of the horizontal end of the top plate 1 for installing the weight block 5 during testing; similarly, two rows of first strip holes 1-1 are opened on the end face of the horizontal end, i.e. next to the bolt holes 1-2, with 4 first strip holes 1-1 in each row for connection with the frame 4; second strip holes 1-3 are opened on the end face of the vertical end of the top plate 1, and the second strip holes 1-3 are arranged in the vertical direction.
[0053] In this embodiment, in order to improve the strength of the structure, a first reinforcing rib 1 - 4 is provided at the bending portion of the top plate 1 .
[0054] like Figure 3 As shown, Figure 3 The specific structure of the transition plate 2 is that the transition plate 2 as a whole is also an L-shaped structure. A third strip hole 2-1 is opened on the end face of the vertical end of the transition plate 2. The third strip hole 2-1 cooperates with the second strip hole 1-3 to achieve the fixation of the top plate 1 and the transition plate 2 under the tightening of bolts; a fourth strip hole 2-2 is opened on the end face of the horizontal end of the transition plate 2 for connecting with the bottom plate 3.
[0055] In this embodiment, in order to improve the strength of the structure, a second reinforcing rib 2 - 3 is provided at the bending portion of the transition plate 2 .
[0056] like Figure 4 As shown, Figure 4 The specific structure of the bottom plate 3 is that the bottom plate 3 adopts a convex shape, and a plurality of fifth strip holes 3-1, sixth strip holes 3-2 and seventh strip holes 3-3 arranged in a row are sequentially opened on the end surface; the sixth strip hole 3-2 is perpendicular to the fifth strip hole 3-1 and the seventh strip hole 3-3 respectively; the fifth strip hole 3-1 and the seventh strip hole 3-3 are used to connect with the frame 4; the sixth strip hole 3-2 cooperates with the fourth strip hole 2-2 of the transition plate 2, and the transition plate 2 and the bottom plate 3 are fixed under the tightening of bolts.
[0057] It can be seen that due to the cooperation of the strip holes in the vertical direction of the top plate 1 and the transition plate 2, the vertical height can be adjusted to match the height of the frame to be tested; similarly, due to the cooperation of the strip holes in the horizontal direction of the transition plate 2, the horizontal length can be adjusted to match the length of the frame to be tested, thereby meeting the test requirements of frames 4 of different sizes and specifications.
[0058] like Figure 5 As shown, Figure (a) is the first form of the auxiliary tool for vibration testing of an electric bicycle frame, that is, the first strip hole 1-1 and the fifth strip hole 3-1 are located on the same side of the transition plate 2; Figure (b) is the second form of the auxiliary tool for vibration testing of an electric bicycle frame, that is, the first strip hole 1-1 and the fifth strip hole 3-1 are separated on both sides of the transition plate 2 to meet different assembly requirements.
[0059] This auxiliary device can be installed on electric vehicle frames of various sizes through the strip holes on the top plate 1 and the bottom plate 3 through different installation matching methods, and can be used for load-bearing bench vibration tests within 800N. After multiple installation tests, this auxiliary device is easy to operate, safe, reliable and stable.
[0060] like Figure 6 As shown, this embodiment provides an auxiliary tool for vibration testing of an electric bicycle frame, and the specific installation steps are as follows:
[0061] First, use bolts to fix the first strip hole 1-1 on the top plate 1 to the corresponding position of the frame 4 (pre-tighten), then use bolts to fix the top plate 1 and the transition plate 2 together, and finally use bolts to install the bottom plate 3 on the transition plate 2 and the frame 4 according to the structure of the frame 4. Then use M30×175 bolts to install the load block 5 to the corresponding bolt hole 1-2 position of the top plate 1. All bolts are pre-tightened before the parts are installed in place, and all are fixed after adjusting the corresponding positions.
[0062] The tooling was installed on different frames for multiple tests. Figure 5 The structures in Figure a and Figure b were installed correspondingly, and 100,000 vibrations were completed each time according to the test requirements. The experiment was safe and reliable during the experiment. After the experiment was completed, there was no deformation, bending or cracking of the tooling and auxiliary tools. The results proved that this design was safe, convenient and reliable and met the test requirements.
[0063] In summary, the utility model provides an auxiliary device for vibration testing of an electric bicycle frame. The auxiliary device can be used to safely and conveniently fix the weight block on the frame to ensure the safe implementation of the frame vibration test. Through the flexible assembly of the top plate, the transition plate and the bottom plate, it can match different forms of frames, thus solving the problem of different auxiliary devices for different frames, resulting in too many and messy auxiliary devices.
[0064] Compared with existing auxiliary tools and fixtures, it has the following advantages:
[0065] First, it ensures that the weight block can be quickly and easily installed on the frame;
[0066] Second, the use of this auxiliary device makes the mechanism firm and reliable to ensure the safe implementation of the test;
[0067] Third, it has a variety of installation forms and can be applied to different vehicle structures.
[0068] The above embodiment is only one of the implementation methods that can realize the technical solution of the utility model. The scope of protection required by the utility model is not limited only to this embodiment, but also includes within the technical scope disclosed by the utility model, any changes, replacements and other implementation methods that can be easily thought of by any technician familiar with the technical field.
Claims
1. An auxiliary tool for vibration testing of an electric bicycle frame, characterized in that: It comprises a top plate (1), a transition plate (2) and a bottom plate (3) which are connected in sequence from top to bottom; A plurality of first strip-shaped holes (1-1) are provided on the end surface of one end of the top plate (1), and a plurality of second strip-shaped holes (1-3) are provided on the end surface of the other end; A plurality of third strip-shaped holes (2-1) are provided on the end surface of one end of the transition plate (2), and a plurality of fourth strip-shaped holes (2-2) are provided on the end surface of the other end; A sixth strip-shaped hole (3-2) is provided in the middle of the end surface of the bottom plate (3); a fifth strip-shaped hole (3-1) is provided on one side of the sixth strip-shaped hole (3-2), and a seventh strip-shaped hole (3-3) is provided on the other side; The top plate (1) is connected to the transition plate (2) through the cooperation of the second strip-shaped hole (1-3) and the third strip-shaped hole (2-1); the second strip-shaped hole (1-3) and the third strip-shaped hole (2-1) are both arranged along a vertical direction parallel to the vehicle frame (4); The transition plate (2) is connected to the bottom plate (3) through the cooperation of the fourth strip hole (2-2) and the sixth strip hole (3-2); the fourth strip hole (2-2) and the sixth strip hole (3-2) are both arranged along an axial direction parallel to the vehicle frame (4).
2. The auxiliary tool for vibration testing of an electric bicycle frame according to claim 1, characterized in that: The top plate (1) is L-shaped; the first strip-shaped holes (1-1) are arranged in a row on the horizontal end surface of the top plate (1); and the second strip-shaped holes (1-3) are arranged in a row on the vertical end surface of the top plate (1).
3. The auxiliary tool for vibration testing of an electric bicycle frame according to claim 2, characterized in that: A plurality of bolt holes (1-2) for connecting a load-bearing block (5) are provided on the horizontal end surface of the top plate (1).
4. The auxiliary tool for vibration testing of an electric bicycle frame according to claim 2, characterized in that: A first reinforcing rib (1-4) is provided at the bending portion of the top plate (1).
5. The auxiliary tool for vibration testing of an electric bicycle frame according to claim 1, characterized in that: The transition plate (2) is L-shaped; the third strip holes (2-1) are arranged in a row on the vertical end surface of the transition plate (2); and the fourth strip holes (2-2) are arranged in a row on the horizontal end surface of the transition plate (2).
6. The auxiliary tool for testing vibration of an electric bicycle frame according to claim 5, characterized in that: A second reinforcing rib (2-3) is provided at the bending portion of the transition plate (2).
7. The auxiliary tool for vibration testing of an electric bicycle frame according to claim 1, characterized in that: The first strip-shaped hole (1-1) and the fifth strip-shaped hole (3-1) are arranged on the same side of the transition plate (2).
8. The auxiliary tool for vibration testing of an electric bicycle frame according to claim 1, characterized in that: The first strip-shaped hole (1-1) and the fifth strip-shaped hole (3-1) are arranged separately on two sides of the transition plate (2).
9. The auxiliary tool for testing vibration of an electric bicycle frame according to claim 1, characterized in that: The sixth strip-shaped hole (3-2) is respectively perpendicular to the fifth strip-shaped hole (3-1) and the seventh strip-shaped hole (3-3).
10. The auxiliary tool for testing vibration of an electric bicycle frame according to claim 1, characterized in that: The top plate (1), the transition plate (2) and the bottom plate (3) are all made of No. 45 steel.