Upper guide wheel seat for vibration detection equipment

Abstract

The utility model discloses an upper guide wheel seat for vibration detection equipment. The upper guide wheel seat comprises a fixed base, a pendulum shaft fixing piece is arranged above the fixed base, the fixed base is connected with the pendulum shaft fixing piece through a bearing connecting rod, an adjusting part is arranged between the fixed base and the pendulum shaft fixing piece, and the adjusting part comprises a rotating threaded rod, an angle adjusting block and a bullet bolt; the rotary threaded rod is horizontally arranged in the fixed base, the rotary threaded rod is in threaded connection with the angle adjusting block, the top of the rotary threaded rod abuts against the bottom of the warhead bolt, and the warhead bolt is rotationally connected with the pendulum shaft fixing piece. And the possibility of deviation of a vibration test result is small.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vibration detection equipment, and specifically relates to an upper guide wheel seat for vibration detection equipment. BACKGROUND

[0002] In the fields of aerospace, automobile, civil engineering, etc., vibration test equipment is often used to simulate various vibration environments to test the reliability and durability of structures and materials. In the structure of the vibration test equipment, the upper guide wheel seat plays a crucial role. It is mainly used to support and adjust the guide wheel (or swing shaft), keep the moving parts of the vibration equipment always in the center position, ensure that it can move according to the preset trajectory and direction during the test process, and absorb its own resonance, playing a triple role of support, fixation and guidance. The design and material selection of the upper guide seat have an important influence on the performance of the vibration test equipment. It is usually made of high-strength, wear-resistant and corrosion-resistant materials, such as high-quality steel and alloy materials, to ensure its long-term stability and reliability.

[0003] The upper guide wheel seat is an important part of the guiding device of the vibration test equipment. It is fixed above the vibration test equipment. The outer edges of the left and right ends of the guide wheel are in contact with the side surfaces of the upper guide wheel seat and the side walls of the moving parts. A pair of support shaft parts is symmetrically extended from the middle part of the guide wheel to the two sides. The support shaft parts are fixedly connected with the moving parts and the upper guide wheel seat through cylindrical rubber elastic members. In the working process, the upper guide wheel seat uses the elastic recovery force generated by the radial torsional deformation of the rubber elastic members to keep the moving parts in the center position, absorb its own resonance, and ensure the stability of the vibration movement.

[0004] At present, most of the vibration test equipment manufacturers on the market use the adjustment mode of the upper guide wheel seat during production. However, there are some deficiencies in the use of this adjustment mode: the distance between the upper guide wheel seat and the vibration moving parts cannot be accurately adjusted, the vibration moving parts cannot be fixed in the middle position of the equipment all the time, when the vibration test equipment runs for a long time, the gear on the guide wheel will be misaligned with the rack on the contact surface of the upper guide wheel seat, resulting in that the guide wheel cannot reach the predetermined displacement and cannot move according to the preset trajectory and direction. These deficiencies will cause errors in the vibration test results, and the tested products may have irreversible consequences when used. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an upper guide wheel seat for vibration detection equipment to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an upper guide wheel seat for vibration detection equipment, including fixed base, the upper of fixed base is provided with swing axle fixing piece, and the fixed base is connected with swing axle fixing piece through bearing connecting rod, and the fixed base is provided with adjusting unit with swing axle fixing piece, the adjusting unit includes rotating screw rod, angle adjusting block and bullet bolt, rotating screw rod is horizontally arranged in the inside of fixed base, rotating screw rod is threadedly connected with angle adjusting block, the top of rotating screw rod is abutted with the bottom of bullet bolt, and bullet bolt is rotatably connected with swing axle fixing piece.

[0008] By adopting the above technical scheme: when installing, the swing axle fixing piece is inserted into the upper of the fixed base, then the fixed base and the swing axle fixing piece are connected together through the bearing connecting rod, the bullet bolt is lifted by rotating the rotating screw rod, the inclination angle of the swing axle fixing piece is adjusted, and finally the bullet bolt is locked and fixed, which is convenient to adjust, has high adjustment accuracy and can effectively prevent the gear and the rack from being misaligned.

[0009] Preferably, the swing axle fixing piece and the bullet bolt are provided with a waist hole wedge block.

[0010] By adopting the above technical scheme: the waist hole wedge block can improve the stability of the connection between the swing axle fixing piece and the bullet bolt, and further improve the adjustment accuracy.

[0011] Preferably, the bullet bolt is provided with a fixed bolt on both sides, the top of the fixed base is provided with a locking hole, and the fixed bolt is connected with the locking hole through the swing axle fixing piece.

[0012] By adopting the above technical scheme: through the cooperation between the fixed bolt and the locking hole, the stability of the connection between the swing axle fixing piece and the fixed base can be further improved.

[0013] Preferably, the fixed bolt and the swing axle fixing piece are provided with a round hole wedge block.

[0014] By adopting the above technical scheme: the round hole wedge block can further improve the stability of the connection between the swing axle fixing piece and the fixed bolt.

[0015] Preferably, the both ends of the bearing connecting rod are provided with a hexagon nut.

[0016] By adopting the above technical scheme: the hexagon nut can lock and fix the bearing connecting rod, and further improve the stability of the connection.

[0017] Preferably, one side of the swing axle fixing piece is provided with a gasket.

[0018] The gasket facilitates installation of the swing shaft in the swing shaft.

[0019] Preferably, the fixing base is provided with mounting holes on both sides.

[0020] The mounting holes facilitate installation of the fixing base on the vibration test equipment table.

[0021] The technical effects and advantages of the present application are as follows:

[0022] 1. The swing shaft fixing member is adjusted by adjusting the pushing angle adjustment block of the threaded rod, which greatly increases the accuracy of adjustment and greatly reduces the possibility of deviation of the vibration test result.

[0023] 2. The adjustment mode of the threaded rod can timely find and adjust the vibration movement component, ensure that it always remains at the center of gravity of the equipment, and greatly enhance the accuracy of the vibration test equipment.

[0024] 3. The swing shaft fixing member has an arc that can effectively control the swing direction of the guide wheel (or swing shaft), reduce the misalignment phenomenon of the gear and rack during the movement of the guide wheel (or swing shaft), thereby ensuring effective displacement and movement along the predetermined trajectory and direction. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the present application; Figure 1

[0027] Figure 3 It is a schematic diagram of the structure of the fixing base in the present application;

[0028] Figure 4 It is a schematic diagram of the structure of the load-bearing connecting rod in the present application;

[0029] Figure 5 It is a schematic diagram of the structure of the hexagonal nut in the present application;

[0030] Figure 6 It is a schematic diagram of the structure of the round hole wedge block in the present application;

[0031] Figure 7 It is a schematic diagram of the structure of the waist hole wedge block in the present application;

[0032] Figure 8 It is a schematic diagram of the structure of the swing shaft fixing member in the present application;

[0033] Figure 9 ​This is a schematic diagram of the fixing bolt in this utility model;

[0034] Figure 10 This is a schematic diagram of the rotating threaded rod in this utility model;

[0035] Figure 11 This is a schematic diagram of the angle adjustment block in this utility model;

[0036] Figure 12 This is a schematic diagram of the structure of the bullet bolt in this utility model;

[0037] Figure 13 This is a schematic diagram of the gasket structure in this utility model.

[0038] In the diagram: 1. Fixed base; 2. Load-bearing connecting rod; 3. Hexagonal nut; 4. Round hole wedge block; 5. Waist hole wedge block; 6. Swing shaft fixing component; 7. Fixing bolt; 8. Rotating threaded rod; 9. Angle adjustment block; 10. Spring bolt; 11. Washer; 12. Mounting hole; 13. Locking hole. Detailed Implementation

[0039] The following will refer to the appendix in the embodiments of this utility model. Figures 1-13 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The specific embodiments described herein are merely used to explain this utility model and are not intended to limit this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] Example:

[0041] like Figures 1-13The utility model provides a kind of upper guide pulley seat for vibration detection equipment, including fixed base 1, the upper of fixed base 1 is provided with swing axle fixing piece 6, fixed base 1 is connected with swing axle fixing piece 6 by load bearing connecting rod 2, adjusting part is provided between fixed base 1 and swing axle fixing piece 6, adjusting part includes rotating screw rod 8, angle adjusting block 9 and bullet bolt 10, rotating screw rod 8 is horizontally arranged in the inside of fixed base 1, rotating screw rod 8 is threadedly connected with angle adjusting block 9, the top of rotating screw rod 8 is abutted with the bottom of bullet bolt 10, bullet bolt 10 is rotatably connected with swing axle fixing piece 6, when installing, swing axle fixing piece 6 is inserted into the upper of fixed base 1, then fixed base 1 and swing axle fixing piece 6 are connected together by load bearing connecting rod 2, and bullet bolt 10 is driven to lift by rotating rotating screw rod 8, to further drive the inclination of swing axle fixing piece 6 to adjust, finally locking and fixing by bullet bolt 10, not only convenient to adjust, but also higher adjustment accuracy, can effectively compare the misregistration phenomenon that occurs when gear and rack engage.

[0042] Waist hole wedge block is provided between swing axle fixing piece 6 and bullet bolt 10, waist hole wedge block can improve the stability of connection between swing axle fixing piece 6 and bullet bolt 10, further improve adjustment accuracy.

[0043] Bullet bolt 10 is provided with fixed bolt 7 on both sides, the top of fixed base 1 is provided with locking hole 13, fixed bolt 7 is connected with locking hole 13 by passing through swing axle fixing piece 6, by the cooperation between fixed bolt 7 and locking hole 13, the stability of connection between swing axle fixing piece 6 and fixed base 1 can be further improved.

[0044] Round hole wedge block is provided between fixed bolt 7 and swing axle fixing piece 6, and the stability of connection between swing axle fixing piece 6 and fixed bolt 7 can be further improved.

[0045] Hexagonal nut 3 is provided at both ends of load bearing connecting rod 2, and the load bearing connecting rod can be locked and fixed by hexagonal nut 3, to further improve the stability of connection.

[0046] One side of swing axle fixing piece 6 is provided with gasket 11, and the swing axle is conveniently installed in the swing axle.

[0047] Fixed base 1 is provided with mounting hole 12 on both sides, and the fixed base 1 is conveniently installed on the vibration test equipment table surface by mounting hole 12.

[0048] In the device, the hexagonal nut 3 and the fixing bolt 7 are standard parts, and the rest of the parts are milled from ZL102 aluminum alloy which has the advantages of high strength, high hardness, wear resistance, corrosion resistance, etc. The protruding threaded cylinder on the upper surface of the fixed base 1 can not only hold the swing shaft fixing part 6 when it is stationary, but also prevent damage to its internal structure. The mounting holes 12 on the left and right sides can make the upper guide wheel seat fixed as a whole on the vibration test equipment. The rear of the swing shaft fixing part 6 is made into a slope, which can not only reduce the weight and make the center of gravity of the part downward, but also reserve a position for the placement of the round hole wedge block 4 and the waist hole wedge block 5. The function of the load-bearing connecting rod 2 and the hexagonal nut 3 is to lock when the swing shaft fixing part 6 is adjusted.

[0049] When installing the device, the fixed base 1 can be fixed on the vibration test equipment table by using a bolt. When installing the device, first place the swing shaft fixing part 6 in the reserved hole of the fixed base 1, rotate the load-bearing connecting rod 2 into the side hole and fix it with the hexagonal nut 3, make the swing shaft fixing part 6 and the fixed base 1 into a whole, and fix the swing shaft fixing part 6 and the load-bearing connecting rod 2 by welding. Place the angle adjustment block 9 into the unthreaded hole of the fixed base 1, rotate the threaded rod 8 through the threaded hole of the angle adjustment block 9, make the swing shaft fixing part 6 and the slope of the round hole wedge block 4 and the waist hole wedge block 5 coincide, finally, rotate the two fixing bolts 7 through the swing shaft fixing part 6 into the locking hole 13 of the fixed base 1 to play a fixing role, rotate the bullet bolt 10 into the swing shaft fixing part 6 and through the fixed base 1 and contact with the angle adjustment block 6, finally, use special industrial glue to stick the gasket 11 hole to hole to the swing shaft fixing part for initial fixation, and then fasten it with a screw.

[0050] When using, first loosen the fixing bolt 7 to cancel the fixed state, move the angle adjustment block 9 forward or backward by rotating the threaded rod 8, so as to lift or lower the bullet bolt 10 fixed with the swing shaft fixing part 6, realize the rotation adjustment of the swing shaft fixing part 6, finally, tighten the fixing bolt 7 downward to make it have a fixing effect.

[0051] In summary, the device has the characteristics of high adjustment accuracy, not easy to produce deviation, convenient to use, etc.

[0052] Finally, it should be pointed out that the above is only the preferred embodiment of the present utility model and is not used to limit the present utility model, although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An upper sheave seat for a vibration detection device, comprising a fixed base (1); characterized in that: The upper portion of the fixing base (1) is provided with a swing shaft fixing part (6), the fixing base (1) and the swing shaft fixing part (6) are connected through a load bearing connecting rod (2), an adjusting part is arranged between the fixing base (1) and the swing shaft fixing part (6), the adjusting part comprises a rotating threaded rod (8), an angle adjusting block (9) and a bullet bolt (10), the rotating threaded rod (8) is horizontally arranged in the interior of the fixing base (1), the rotating threaded rod (8) is threadedly connected with the angle adjusting block (9), the top of the rotating threaded rod (8) abuts against the bottom of the bullet bolt (10), and the bullet bolt (10) is rotationally connected with the swing shaft fixing part (6).

2. An upper sheave carrier for a vibration detection apparatus according to claim 1, wherein: Waist hole wedge blocks are arranged between the swing shaft fixing part (6) and the bullet bolt (10).

3. An upper sheave carrier for a vibration detection apparatus as defined in claim 1, wherein: Fixed bolts (7) are arranged on the two sides of the bullet bolt (10), the top of the fixing base (1) is provided with a locking hole (13), and the fixed bolts (7) are connected with the locking hole (13) through the swing shaft fixing part (6).

4. An upper sheave carrier for a vibration detection apparatus according to claim 3, wherein: Round hole wedge blocks are arranged between the fixed bolts (7) and the swing shaft fixing part (6).

5. A top sheave seat for a vibration detection apparatus according to claim 1, wherein: Hexagonal nuts (3) are arranged at the two ends of the load bearing connecting rod (2).

6. An upper sheave carrier for a vibration detection apparatus according to claim 1, wherein: A gasket (11) is arranged on one side of the swing shaft fixing part (6).

7. An upper sheave carrier for a vibration detection apparatus according to claim 1, wherein: Mounting holes (12) are arranged on the two sides of the fixing base (1).

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