Novel disassembly-free reversing stepless center distance-adjustable vibration device

Abstract

The invention relates to a novel disassembly-free reversing stepless center distance-adjustable vibration device which comprises a bottom plate, a center distance-adjustable stud, a rear support lug base, a rear support lug seat, a rear support lug seat nut, a reversing fixing stud, a front support lug base, a rocker arm and a fixing pressing strip. A concave groove is formed in the bottom plate, the center distance adjustable stud is fixed in the concave groove through the fixing pressing strip, the rear supporting lug base is in threaded connection with the center distance adjustable stud and matched with the concave groove, and the center distance adjustable stud is rotated to enable the rear supporting lug base to move along the concave groove. One end of the rear support lug seat is connected to the rear support lug base, and the other end is connected with a product; a product is connected to the front support lug base through a rocker arm; a cross hole is designed in the rear support lug seat, and when a product is reversed by 90 degrees, the rear support lug seat is rotated, and a reversing fixing stud penetrates through the cross hole in the rear support lug seat to perform circumferential rotation limiting on the rear support lug seat, so that 90-degree reversing of the product is realized; and the rear support lug seat nut is used for tightening the rear support lug seat, so that disassembly and assembly are avoided.

Description

Technical Field

[0001] The present invention relates to a vibration device, in particular to a vibration device which needs to adjust the center distance steplessly and change direction flexibly, and belongs to the field of aerospace equipment. Background Art

[0002] Random vibration test simulates a mechanical vibration environment with certain statistical laws to determine the adaptability of products to random vibration environment stress and the integrity of product structural performance. It is an indispensable process in the production of aerospace electromechanical servo products. Traditional vibration tooling generally uses a frame-type structure to carry servo products for vibration, but it is usually more prone to low natural frequency and cause product resonance. In addition, the frame-type structure has problems such as metal fatigue and poor replaceability.

[0003] For example, Chinese patent CN114427946A is named Universal Vibration Fixture and Vibration Test Method, which consists of a universal base and multiple special panels. The special panels are provided with multiple fixed mounting holes. The special panels are replaced for different products to meet the needs of vibration testing. The overall fixture structure is a frame box structure. This similar structure has been applied to a variety of servo products. The center distance cannot be adjusted, and the product cannot achieve the function of flexible reversing. The purpose of universalization cannot be achieved for center distance servo products. Summary of the invention

[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art and to provide a new type of disassembly-free, reversible, steplessly adjustable center distance vibration device, which can flexibly revers and steplessly adjust the center distance, thereby achieving the purposes of convenient operation, strong versatility and high reliability.

[0005] The technical solution of the present invention is:

[0006] In the first aspect, the present invention provides a novel non-disassembly and assembly-free reversible stepless adjustable center distance vibration device, comprising: a bottom plate, a center distance adjustable stud, a rear support ear base, a rear support ear seat, a rear support ear seat nut, a reversing fixed stud, a front support ear base, a rocker arm and a stud fixing pressure strip;

[0007] A concave groove is opened on the bottom plate in the length direction, the center distance adjustable stud is fixed in the concave groove in the bottom plate through a stud fixing strip, the rear support ear base is screwed with the center distance adjustable stud, and the rear support ear base is matched with the concave groove, and the rear support ear base is moved along the concave groove by rotating the center distance adjustable stud;

[0008] One end of the rear support ear seat is connected to the rear support ear base, and the other end is connected to one end of the product; the other end of the product is connected to the front support ear base through a rocker arm, and then fixed to the bottom plate through the front support ear base;

[0009] There are cross holes designed on the rear support ear seat. When the product is reversed 90°, the rear support ear seat is rotated, and the reversing fixing stud is passed through the cross holes in the rear support ear seat to limit its circumferential rotation, thereby realizing the 90° reversal of the product; the rear support ear seat is tightened with the rear support ear seat nut to avoid disassembly and assembly.

[0010] Furthermore, it also includes a stud fixing block, which is screwed on the bottom plate to support the studs with adjustable center distance and limit the movement of the rear support ear base.

[0011] Furthermore, a through hole is provided on the top of the rear support ear base. When the product is reversed by 90 degrees, the reversing fixing stud passes through the top through hole and then enters the cross hole to limit the circumferential rotation of the rear support ear seat.

[0012] Furthermore, when installing the product, first rotate the center distance adjustable stud according to the size of the product's center distance so that the distance between the rear support ear seat and the rocker arm matches the product; the pin shaft that comes with the product passes through the rear support ear seat, the rocker arm, and the front and rear inner holes of the product respectively, and the product is installed by tightening the nut.

[0013] Furthermore, a joint bearing is provided on one end of the rear support ear seat connected to the product, which, combined with the rocker arm of the front support ear part, enables the product to swing back and forth while vibrating.

[0014] Furthermore, the rear support ear base is moved by rotating the center distance adjustable stud to adjust the distance between the rear support ear base and the front support ear base, and various center distance installation products are adapted through stepless adjustment of the thread on the center distance adjustable stud.

[0015] In a second aspect, the present invention further provides a novel assembly method of a non-disassembly-free, reversible, steplessly adjustable center distance vibration device, comprising the following steps:

[0016] 1. The center distance adjustable stud is first fixed in the concave groove in the bottom plate through the stud fixing strip;

[0017] 2. The center distance adjustable stud is screwed to the rear support ear base, and the center distance adjustable stud is rotated to move the rear support ear base until the rear support ear base penetrates into the concave groove in the bottom plate;

[0018] 3. Screw the stud fixing block onto the bottom plate to support the adjustable center distance stud and limit the movement of the rear support ear seat;

[0019] 4. When installing the product, first rotate the center distance adjustable stud according to the size of the product center distance, so that the distance between the rear support ear seat and the rocker arm matches the product;

[0020] 5. Pass the pin shaft of the product through the rear support ear seat, rocker arm and the front and rear inner holes of the product respectively, and tighten the nuts;

[0021] 6. When the product is reversed by 90°, directly rotate the rear support ear seat, and then use the reversing fixing stud to pass through the cross hole in the rear support ear seat to limit its circumferential rotation, and then use the rear support ear seat nut to tighten the rear support ear seat to avoid disassembly.

[0022] Furthermore, a joint bearing is provided on one end of the rear support ear seat connected to the product, which, combined with the rocker arm of the front support ear part, enables the product to swing back and forth while vibrating.

[0023] Furthermore, the rear support ear base is moved by rotating the center distance adjustable stud to adjust the distance between the rear support ear base and the front support ear base, and various center distance installation products are adapted through stepless adjustment of the thread on the center distance adjustable stud.

[0024] Furthermore, a through hole is provided on the top of the rear support ear base. When the product is reversed by 90 degrees, the reversing fixing stud passes through the top through hole and then enters the cross hole to limit the circumferential rotation of the rear support ear seat.

[0025] The beneficial effects of the present invention compared with the prior art are:

[0026] (1) The center distance between the front and rear support ears of the present invention can be adjusted steplessly, and can be adapted to products with a variety of center distances.

[0027] (2) The present invention can avoid disassembly and reversing during the vibration process, which is convenient to operate and improves production efficiency.

[0028] (3) The components of the present invention are highly replaceable. According to the degree of wear and tear of the device, only the rear support ear seat 4 and the rocker arm 8 need to be replaced for continued use, thereby reducing the production cost of similar vibration devices.

[0029] (4) The present invention adopts a bottom plate structure, so that the center of gravity of the product is closer to the vibration table. Compared with the traditional frame box structure, it can more truly reflect the vibration state of the product, improve the natural frequency of the entire device, and ensure the reliability of vibration.

[0030] (5) The present invention replaces the traditional frame-box structure, designs a rear support ear base and a center distance adjustable stud to be screwed together, fixes the center distance adjustable stud to the bottom plate, and rotates the stud to move the rear support ear base to adjust the distance between the rear support ear base and the front support ear base. Through the stepless adjustment of the thread, it is suitable for a variety of center distance installation products. At the same time, this bottom plate type vibration fixture makes the center of gravity of the product closer to the vibration table surface compared with the frame-box structure, which can avoid resonance between the product and the fixture, improve the resonance frequency, and achieve the reliability of the vibration test.

[0031] (6) The rear support ear seat mounting seat of the present invention is designed with a cross hole structure. According to the vibration requirements of the product in different directions, the product together with the rear support ear mounting seat can be directly rotated 90° on the tooling, and then the reversing fixing stud is inserted into the rear support ear base and passes through the cross hole on the rear support ear mounting seat to limit the circumferential rotation of the rear support ear mounting seat, thereby achieving the purpose of flexible reversing without disassembly and assembly.

[0032] (7) The rear support ear seat mounting seat of the present invention is designed with a joint bearing structure, and the front support ear portion is designed with a rocker arm structure, which can realize the product vibrating and swinging back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A main body diagram of the non-disassembly-free, reversible, steplessly adjustable center distance vibration device provided by the present invention;

[0034] Figure 2 This is a schematic diagram of the mechanism after reversing 90 degrees;

[0035] Figure 3 This is the connection relationship diagram between the rear support ear seat and the spherical bearing;

[0036] Figure 4 This is the structural diagram of the center distance adjustable stud;

[0037] Figure 5 This is a cross-sectional view of the connection between the center distance adjustable stud and the base plate.

[0038] Among them, 1 is the base plate, 2 is the center distance adjustable stud, 3 is the rear support ear base, 4 is the rear support ear seat, 5 is the rear support ear seat nut, 6 is the reversing fixing stud, 7 is the front support ear base, 8 is the rocker arm, 10 is the stud fixing block, 11 is the stud fixing strip, and 12 is the joint bearing. DETAILED DESCRIPTION

[0039] like Figure 1 and Figure 5 As shown, the present invention proposes a novel non-disassembly and reversible stepless adjustable center distance vibration device, comprising: a bottom plate 1, a center distance adjustable stud 2, a rear support ear base 3, a rear support ear seat 4, a rear support ear seat nut 5, a reversing fixed stud 6, a front support ear base 7, a rocker arm 8 and a stud fixing pressure strip 11; the structure of the center distance adjustable stud 2 is as shown Figure 4 shown.

[0040] A concave groove is opened on the bottom plate 1 along the length direction, and the center distance adjustable stud 2 is fixed in the concave groove in the bottom plate 1 through the stud fixing strip 11, and the rear support ear base 3 is screwed with the center distance adjustable stud 2, and the rear support ear base 3 cooperates with the concave groove, and the rear support ear base 3 moves along the concave groove by rotating the center distance adjustable stud 2;

[0041] One end of the rear support ear seat 4 is connected to the rear support ear base 3, and the other end is connected to one end of the product 9; the other end of the product 9 is connected to the front support ear base 7 through the rocker arm 8, and then fixed to the bottom plate 1 through the front support ear base 7;

[0042] The rear support ear seat 4 is designed with a cross hole. When the product 9 is reversed by 90°, the rear support ear seat 4 is rotated, and the reversing fixing stud 6 is passed through the cross hole in the rear support ear seat 4 to limit the circumferential rotation thereof, so as to realize the 90° reversal of the product 9; the rear support ear seat nut 5 is used to tighten the rear support ear seat 4 to avoid disassembly and assembly. Figure 2 shown.

[0043] The present invention replaces the traditional frame-box structure, designs the rear support ear base to be screwed with the center distance adjustable stud, fixes the center distance adjustable stud to the bottom plate, and rotates the stud to move the rear support ear base to adjust the distance between the rear support ear base and the front support ear base. Through the stepless adjustment of the thread, it is suitable for a variety of center distance installation products. At the same time, this bottom plate type vibration fixture makes the center of gravity of the product closer to the vibration table surface compared with the frame-box structure, which can avoid resonance between the product and the fixture, improve the resonance frequency, and achieve the reliability of the vibration test.

[0044] Furthermore, the vibration device of the present invention further comprises a stud fixing block 10 , which is screwed onto the base plate 1 to support the studs 2 with adjustable center distance and to limit the movement of the rear support ear base 3 .

[0045] Furthermore, a through hole is provided on the top of the rear support ear base 3. When the product 9 is reversed by 90°, the reversing fixing stud 6 passes through the top through hole and then penetrates into the cross hole to limit the circumferential rotation of the rear support ear seat 4.

[0046] Furthermore, when installing product 9, first rotate the center distance adjustable stud 2 according to the size of the center distance of product 9, so that the distance between the rear support ear seat 4 and the rocker arm 8 matches the product 9; the pin shaft matching the product 9 passes through the rear support ear seat 4, the rocker arm 8 and the front and rear inner holes of the product respectively, and the installation of product 9 is completed by tightening the nut.

[0047] Further, such as Figure 3 As shown, a joint bearing 12 is provided on one end of the rear support ear seat 4 connected to the product 9, which, combined with the rocker arm 8 of the front support ear part, enables the product to vibrate and swing back and forth simultaneously.

[0048] Furthermore, the rear support ear base 3 is moved by rotating the center distance adjustable stud 2 to adjust the distance between the rear support ear base 3 and the front support ear base 7. Through the stepless adjustment of the thread on the center distance adjustable stud 2, various center distance installation products can be adapted.

[0049] In a second aspect, the present invention further provides a novel assembly method of a non-disassembly-free, reversible, steplessly adjustable center distance vibration device, comprising the following steps:

[0050] 1. The center distance adjustable stud 2 is first fixed in the concave groove of the bottom plate 1 through the stud fixing strip 11;

[0051] 2. The center distance adjustable stud 2 is screwed to the rear support ear base 3, and the center distance adjustable stud 2 is rotated to move the rear support ear base 3 until the rear support ear base 3 penetrates into the concave groove in the bottom plate 1;

[0052] 3. Screw the stud fixing block 10 onto the bottom plate 1 to support the center distance adjustable stud 2 and limit the movement of the rear support ear seat 3;

[0053] 4. When installing the product 9, first rotate the center distance adjustable stud 2 according to the size of the center distance of the product 9, so that the distance between the rear support ear seat 4 and the rocker arm 8 matches the product;

[0054] 5. Pass the pins of product 9 through the rear support ear seat 4, rocker arm 8 and the front and rear inner holes of the product, and tighten the nuts;

[0055] 6. When the product 9 performs a 90° reversal, the rear support ear seat 4 is directly rotated, and then the reversing fixing stud 6 is passed through the cross hole in the rear support ear seat 4 to limit its circumferential rotation, and then the rear support ear seat nut 5 is used to tighten the rear support ear seat 4 to avoid disassembly.

[0056] The present invention adopts a bottom plate structure, so that the center of gravity of the product is closer to the vibration table surface. Compared with the traditional frame box structure, it can more truly reflect the vibration state of the product, improve the natural frequency of the entire device, and ensure the reliability of vibration.

[0057] Parts of the present invention that are not described in detail belong to common knowledge among those skilled in the art.

Claims

1. A new type of non-disassembly-free, reversible, steplessly adjustable center distance vibration device, characterized in that include: Bottom plate (1), center distance adjustable stud (2), rear support ear base (3), rear support ear seat (4), rear support ear seat nut (5), reversing fixing stud (6), front support ear base (7), rocker arm (8) and stud fixing pressure strip (11); A concave groove is formed on the bottom plate (1) along the length direction, the center distance adjustable stud (2) is fixed in the concave groove in the bottom plate (1) through a stud fixing strip (11), the rear support ear base (3) is screwed to the center distance adjustable stud (2), and the rear support ear base (3) cooperates with the concave groove, and the rear support ear base (3) moves along the concave groove by rotating the center distance adjustable stud (2); One end of the rear support ear seat (4) is connected to the rear support ear base (3), and the other end is connected to one end of the product (9); the other end of the product (9) is connected to the front support ear base (7) through a rocker arm (8), and is further fixed to the bottom plate (1) through the front support ear base (7); A cross hole is designed on the rear support ear seat (4). When the product (9) performs a 90° reversal, the rear support ear seat (4) is rotated, and a reversing fixing stud (6) is passed through the cross hole in the rear support ear seat (4) to limit its circumferential rotation, thereby achieving a 90° reversal of the product (9); the rear support ear seat nut (5) is used to tighten the rear support ear seat (4) to avoid disassembly and assembly.

2. According to claim 1, a novel non-disassembly-free reversible and steplessly adjustable center distance vibration device is characterized in that: It also includes a stud fixing block (10) which is screwed onto the bottom plate (1) to support the studs (2) with adjustable center distance and to limit the movement of the rear support ear base (3).

3. According to claim 1, a novel non-disassembly-free reversible and steplessly adjustable center distance vibration device is characterized in that: A through hole is provided at the top of the rear support ear base (3). When the product (9) is reversed by 90 degrees, the reversing fixing stud (6) passes through the top through hole and then enters the cross hole to limit the circumferential rotation of the rear support ear seat (4).

4. According to claim 1, a novel non-disassembly-free, reversible, steplessly adjustable center distance vibration device is characterized in that: When installing the product (9), first rotate the center distance adjustable stud (2) according to the size of the center distance of the product (9) so that the distance between the rear support ear seat (4) and the rocker arm (8) matches the product (9); the pin shaft matching the product (9) passes through the rear support ear seat (4), the rocker arm (8) and the front and rear inner holes of the product respectively, and the installation of the product (9) is completed by tightening the nut.

5. According to claim 4, a novel non-disassembly-free reversible and steplessly adjustable center distance vibration device is characterized in that: A joint bearing (12) is arranged on one end of the rear support ear seat (4) connected to the product (9), and is combined with the rocker arm (8) of the front support ear portion to achieve the product vibrating and swinging back and forth simultaneously.

6. According to claim 1, the novel non-disassembly-free reversible and steplessly adjustable center distance vibration device is characterized in that: The rear support ear base (3) is moved by rotating the center distance adjustable stud (2) to adjust the distance between the rear support ear base (3) and the front support ear base (7). The thread on the center distance adjustable stud (2) is steplessly adjusted to adapt to various center distance installation products.

7. An assembly method for the novel non-disassembly-free reversible and steplessly adjustable center distance vibration device according to claim 1, characterized in that include: (1) The center distance adjustable stud (2) is first fixed in the concave groove in the bottom plate (1) through the stud fixing strip (11); (2) The center distance adjustable stud (2) is screwed to the rear support ear base (3), and the center distance adjustable stud (2) is rotated to move the rear support ear base (3) until the rear support ear base (3) penetrates into the concave groove in the bottom plate (1); (3) Screw the stud fixing block (10) onto the bottom plate (1) to support the center distance adjustable stud (2) and limit the movement of the rear support ear seat (3); (4) When installing the product (9), the center distance adjustable stud (2) can be rotated according to the size of the center distance of the product (9) so that the distance between the rear support ear seat (4) and the rocker arm (8) matches the product; (5) Pass the pin shaft of the product (9) through the rear support ear seat (4), the rocker arm (8) and the front and rear inner holes of the product respectively, and tighten the nuts; (6) When the product (9) is to be reversed by 90°, the rear support ear seat (4) is directly rotated, and then the reversing fixing stud (6) is passed through the cross hole in the rear support ear seat (4) to limit its circumferential rotation, and then the rear support ear seat nut (5) is used to tighten the rear support ear seat (4) to avoid disassembly.

8. The assembly method according to claim 7, characterized in that: A joint bearing (12) is arranged on one end of the rear support ear seat (4) connected to the product (9), and is combined with the rocker arm (8) of the front support ear portion to achieve the product vibrating and swinging back and forth simultaneously.

9. The assembly method according to claim 7, characterized in that: The rear support ear base (3) is moved by rotating the center distance adjustable stud (2) to adjust the distance between the rear support ear base (3) and the front support ear base (7). The thread on the center distance adjustable stud (2) is steplessly adjusted to adapt to various center distance installation products.

10. The assembly method according to claim 7, characterized in that: A through hole is provided at the top of the rear support ear base (3). When the product (9) is reversed by 90 degrees, the reversing fixing stud (6) passes through the top through hole and then enters the cross hole to limit the circumferential rotation of the rear support ear seat (4).

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