Vibration exciter

Abstract

The utility model discloses a vibration exciter which comprises a vibration excitation shell, two symmetrically-distributed first rotating shafts are rotationally connected between the front wall and the rear wall of the vibration excitation shell through first bearings, and the vibration exciter further comprises a vibration excitation mechanism. The shock excitation mechanism comprises convex discs, sliding seats, eccentric blocks and auxiliary assemblies, the convex discs are arranged at the front ends of the first rotating shafts, the sliding seats are slidably connected into sliding grooves formed in the front sides of the convex discs, the eccentric blocks are arranged on the front sides of the sliding seats, the auxiliary assemblies are arranged between the convex discs and the shock excitation shell, and the shock excitation mechanism further comprises studs and adjusting knobs. According to the vibration exciter, the position of the eccentric rotating part can be adjusted through the transmission element, so that the centrifugal force of the device is adjusted, and then the exciting force of the device is adjusted according to requirements under the condition that the rotating speed of the eccentric rotating part is the same; and the excitation application range of the device is expanded.

Description

Technical Field

[0001] This utility model relates to the field of vibrator technology, specifically to a vibrator. Background Technology

[0002] A vibrator is a device attached to certain machinery and equipment to generate excitation force. It is an important component utilizing mechanical vibration. A vibrator enables an excited object to obtain a vibration of a certain form and magnitude, thereby conducting vibration and strength tests on the object, or calibrating vibration testing instruments and sensors. In the prior art: Authorization Publication No. CN 207362649 U's patent discloses a vibrator including a vibration shaft, a left fixed eccentric block, a movable eccentric block, a right fixed eccentric block, and a pin. The left and right fixed eccentric blocks are fixed on the vibration shaft, and the movable eccentric block is mounted on the vibration shaft between the left and right fixed eccentric blocks and can rotate around the vibration shaft. The two ends of the pin connect the left and right fixed eccentric blocks. The movable eccentric block includes a small arc and a large arc, which are connected by two straight segments tangential to the small arc. The vibrator provided by this utility model can prevent the movable eccentric block from tearing, making the vibration wheel less prone to damage, improving equipment lifespan, and reducing maintenance costs. However, during the use of this device, the rotation position of the vibration wheel is fixed, causing the excitation force generated by the device itself to remain the same when the speed of the excitation shaft remains constant. It cannot adjust the amplitude of the device according to usage requirements and scenarios, thus limiting its applicability. Therefore, we propose a vibrator. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a vibrator. This device can adjust the position of the eccentric rotating part through a transmission element, thereby adjusting the magnitude of the centrifugal force of the device. In this way, the device can adjust the magnitude of the excitation force according to the requirements when the rotation speed of the eccentric rotating part is the same, thereby improving the excitation application range of the device and effectively solving the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a vibrator, comprising a vibrating shell, wherein two symmetrically distributed rotating shafts are rotatably connected between the front and rear walls of the vibrating shell via a bearing, and further comprising a vibrating mechanism;

[0005] Vibration excitation mechanism: It includes a cam, a slide block, an eccentric block, and auxiliary components. The cam is respectively set at the front end of the rotating shaft. The slide block is slidably connected in the sliding groove opened on the front side of the cam. The eccentric block is provided on the front side of the slide block. The auxiliary components are provided between the cam and the excitation shell. The device can adjust the position of the eccentric rotating part through the transmission element, thereby adjusting the magnitude of the centrifugal force of the device. In this way, the device can adjust the magnitude of the excitation force according to the requirements when the rotation speed of the eccentric rotating part is the same, thereby improving the excitation application range of the device itself.

[0006] Furthermore, the excitation mechanism also includes studs and adjustment knobs. The studs are rotatably connected to the inside of the slide groove through bearings. The studs are threadedly connected to the adjacent slide blocks. The lower end of each stud is provided with an adjustment knob to adjust the position of the eccentric block inside the exciter.

[0007] Furthermore, the excitation mechanism also includes a scale, which is respectively set on the front side of the cam. The scale is installed in conjunction with the slide block to ensure that the adjustment positions of the two eccentric blocks inside the exciter are consistent.

[0008] Furthermore, the auxiliary components include a fixed ring, a rotating ring, a connecting seat, and auxiliary rods. The fixed rings are respectively located on the rear side of the cam. The front side of the excitation shell is rotatably connected to two symmetrically distributed rotating rings via bearing three. Two connecting seats are provided on the front side of the rotating rings and the outer side of the fixed rings. The interior of each connecting seat is rotatably connected to a rotating shaft two via bearing four. Two auxiliary rods are provided between two adjacent rotating shaft twos to partially share the centrifugal force generated by the eccentric block on the front end of the rotating shaft one inside the exciter during rotation, thereby improving the strength of the front end of the rotating shaft one to withstand the excitation force during rotation.

[0009] Furthermore, each of the rotating shafts is provided with a gear 1 in the middle, and the middle of the excitation shell is rotatably connected to a gear 2 via a rotating shaft 3. The gear 1 is meshed with the gear 2, so that the two rotating shafts 1 inside the exciter rotate synchronously at the same speed.

[0010] Furthermore, a circulation pipe is provided through the left wall of the excitation shell. An oil filter is connected in series at the lower end of the circulation pipe, and an oil pump is connected in series at the upper end of the circulation pipe. The input end of the oil pump is electrically connected to the output end of an external control switch to filter impurities from the lubricating oil of the exciter, ensuring the lubrication effect of the gear meshing transmission.

[0011] Furthermore, the lower end of the excitation housing is provided with evenly distributed mounting holes on both the front and rear sides, which facilitates the installation and fixation of the exciter itself.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This vibrator has the following advantages:

[0013] When using a vibrator, the position of the eccentric rotating part can be adjusted by means of a cam, slide, eccentric block, stud, adjustment knob, scale and auxiliary components, thereby adjusting the magnitude of the centrifugal force of the device. This allows the device to adjust the excitation force as needed while maintaining the same rotation speed of the eccentric rotating part, thus improving the device's excitation application range. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0016] In the diagram: 1. Vibration housing, 2. Rotary shaft one, 3. Vibration mechanism, 31. Cam, 32. Slide, 33. Eccentric block, 34. Stud, 35. Adjustment knob, 36. Scale, 37. Auxiliary components, 371. Fixing ring, 372. Rotating ring, 373. Connecting seat, 374. Auxiliary rod, 4. Gear one, 5. Gear two, 6. Oil filter, 7. Circulation pipe, 8. Oil pump, 9. Mounting hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-2This embodiment provides a technical solution: a vibrator, including a vibrating shell 1. Two symmetrically distributed rotating shafts 2 are rotatably connected between the front and rear walls of the vibrating shell 1 via a bearing. Gears 4 are provided in the middle of each rotating shaft 2. A second gear 5 is rotatably connected to the middle of the vibrating shell 1 via a rotating shaft 3. Gears 4 mesh with gears 5. A circulation pipe 7 extends through the left wall of the vibrating shell 1. An oil filter 6 is connected in series at the lower end of the circulation pipe 7, and an oil pump 8 is connected in series at the upper end of the circulation pipe 7. The input end of the oil pump 8 is electrically connected to the output end of an external control switch. Evenly distributed mounting holes 9 are provided on both the front and rear sides of the lower end of the vibrating shell 1. When using the vibrator, the device is first fixed to the vibrator using bolts through the mounting holes 9. The required position is determined by the vibration mechanism 3. The output shaft of the external motor is then fixedly connected to the rear end of the rotating shaft 3. The output shaft of the external motor drives the gear 2 5 to rotate through the rotating shaft 3. The meshing connection between the gear 2 5 and the gear 1 4 causes the two rotating shafts 1 2 to rotate simultaneously. The interior of the vibration housing 1 is filled with lubricating oil. During use, the external control switch starts the oil pump 8. The operation of the oil pump 8 causes the lubricating oil at the bottom of the vibration housing 1 to enter the circulation pipe 7. The large particles of impurities in the lubricating oil are filtered through the stainless steel mesh in the oil filter 6. Then, the oil enters the vibration housing 1 through the upper end of the circulation pipe 7. This improves the lubrication effect of the lubricating oil on the meshing transmission between the gears by filtering impurities.

[0019] Vibration mechanism 3 includes a cam 31, a slide block 32, an eccentric block 33, and an auxiliary component 37. The cam 31 is located at the front end of the rotating shaft 2. The slide block 32 is slidably connected to the slide groove on the front side of the cam 31. The eccentric block 33 is located on the front side of the slide block 32. The auxiliary component 37 is located between the cam 31 and the vibration housing 1. The vibration mechanism 3 also includes studs 34 and adjusting knobs 35. The studs 34 are rotatably connected to the inside of the slide groove through bearings 2. The studs 34 are threaded to the adjacent slide block 32. The lower end of each stud 34 is provided with an adjusting knob 35. The vibration mechanism 3 also includes a scale 36, which is located on the front of the cam 31. On the side, the scale 36 is installed in conjunction with the slide block 32. The auxiliary component 37 includes a fixed ring 371, a rotating ring 372, a connecting seat 373, and an auxiliary rod 374. The fixed rings 371 are respectively located on the rear side of the cam 31. The front side of the excitation shell 1 is rotatably connected to two symmetrically distributed rotating rings 372 via bearing three. Two connecting seats 373 are provided on the front side of the rotating rings 372 and the outer side of the fixed rings 371. The interior of each connecting seat 373 is rotatably connected to a rotating shaft two via bearing four. Two auxiliary rods 374 are provided between two adjacent rotating shaft two. The rotating shaft one 2 drives the corresponding cam 31 to rotate. The cam 31 is slidably engaged with the slide block 32 and the slide groove, thereby driving the cam 31 to rotate. The corresponding eccentric block 33 rotates eccentrically around the axis of the rotating shaft 2. The vibration effect is achieved through the centrifugal force generated during the eccentric rotation of the eccentric block 33. During operation, the operator can rotate the adjustment knob 35 to rotate the corresponding stud 34. The stud 34, through a threaded connection, allows the slide block 32 to slide vertically along the slide groove, thereby adjusting the magnitude of the centrifugal force generated by one rotation of the eccentric block 33, and thus adjusting the amplitude of the vibrator. This is convenient to use. During the vertical movement of the slide block 32 along the slide groove, the position can be adjusted using the scale data of the ruler 36 to ensure the proper alignment of the two eccentric blocks 33. With consistent adjustment positions, during the operation of the vibrator, the cam 31 indirectly drives the rotating ring 372 to rotate synchronously through the fixed ring 371. During the rotation of the rotating ring 372, the auxiliary rod 374 partially shares the centrifugal force generated by the eccentric block 33 on the front end of the rotating shaft 2, thereby improving the strength of the front end of the rotating shaft 2 to withstand the excitation force. This device can adjust the position of the eccentric rotating part through the transmission element, thereby adjusting the magnitude of the centrifugal force of the device. In this way, the device can adjust the magnitude of the excitation force according to the requirements when the rotation speed of the eccentric rotating part is the same, thereby improving the excitation application range of the device itself.

[0020] The working principle of the vibrator provided by this utility model is as follows: When using the vibrator, firstly, the device is fixed to the required vibration position by bolts through the mounting hole 9. Then, the output shaft of the external motor is fixedly connected to the rear end of the rotating shaft 3. The output shaft of the external motor drives the gear 2 5 to rotate through the rotating shaft 3. Through the meshing connection between the gear 2 5 and the gear 1 4, the two rotating shafts 1 2 rotate simultaneously. The rotating shaft 1 2 drives the corresponding cam 31 to rotate. The cam 31 drives the corresponding eccentric block 33 to rotate eccentrically around the axis of the rotating shaft 1 2 through the sliding engagement of the slide seat 32 and the slide groove. The centrifugal force during the eccentric rotation of the eccentric block 33 achieves the vibration effect. The inside of the vibrating shell 1 is filled with lubricating oil. During use, the external control switch starts the oil pump 8. The operation of the oil pump 8 causes the lubricating oil at the bottom of the vibrating shell 1 to enter the circulation pipe 7. Large particles of impurities in the lubricating oil are filtered through the stainless steel mesh in the oil filter 6. Then, the oil enters the vibrating shell 1 through the upper end of the circulation pipe 7. The internal structure filters impurities, thereby improving the lubrication effect of the lubricating oil on the meshing transmission between gears. During the use of the vibrator, the operator can rotate the adjustment knob 35 according to the actual situation to drive the corresponding stud 34 to rotate. The stud 34 is connected by threads, which causes the slide block 32 to slide vertically along the slide groove, thereby adjusting the magnitude of the centrifugal force generated by the rotation of the eccentric block 33, and thus adjusting the amplitude of the vibrator. It is easy to use. During this process, as the slide block 32 moves vertically along the slide groove, the position can be adjusted with the help of the scale data of the scale 36 to ensure that the adjustment positions of the two eccentric blocks 33 are consistent. During the operation of the vibrator, the cam 31 indirectly drives the rotating ring 372 to rotate synchronously through the fixed ring 371. During the rotation of the rotating ring 372, the auxiliary rod 374 partially shares the centrifugal force generated by the eccentric block 33 on the front end of the rotating shaft 2 during rotation, thereby improving the strength of the front end of the rotating shaft 2 to withstand the excitation force during rotation.

[0021] It is worth noting that the oil pump 8 disclosed in the above embodiments can be a YD-3.0-220V micro oil pump, and the external control switch is equipped with a control button corresponding to the oil pump 8 for controlling its switch.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A vibrator, comprising a vibrating shell (1), wherein two symmetrically distributed rotating shafts (2) are rotatably connected between the front and rear walls of the vibrating shell (1) via bearings, characterized in that: It also includes a vibration excitation mechanism (3); Vibration mechanism (3): It includes a cam (31), a slide (32), an eccentric block (33) and an auxiliary component (37). The cam (31) is respectively located at the front end of the rotating shaft (2). The slide (32) is slidably connected in the sliding groove opened on the front side of the cam (31). The eccentric block (33) is provided on the front side of the slide (32). The auxiliary component (37) is provided between the cam (31) and the vibration shell (1).

2. The exciter according to claim 1, characterized in that: The excitation mechanism (3) also includes studs (34) and adjustment knobs (35). The studs (34) are rotatably connected to the inside of the slide groove through bearings. The studs (34) are threadedly connected to the adjacent slides (32). The lower end of each stud (34) is provided with an adjustment knob (35).

3. The exciter according to claim 1, characterized in that: The excitation mechanism (3) also includes a scale (36), which is respectively set on the front side of the cam (31) and is installed in conjunction with the slide (32).

4. The exciter according to claim 1, characterized in that: The auxiliary component (37) includes a fixed ring (371), a rotating ring (372), a connecting seat (373), and an auxiliary rod (374). The fixed ring (371) is respectively located on the rear side of the cam (31). The front side of the excitation shell (1) is rotatably connected to two symmetrically distributed rotating rings (372) through bearing three. The front side of the rotating ring (372) and the outer side of the fixed ring (371) are provided with two connecting seats (373). The interior of the connecting seat (373) is rotatably connected to a rotating shaft two through bearing four. Two auxiliary rods (374) are provided between two adjacent rotating shaft two.

5. The exciter according to claim 1, characterized in that: The middle part of the rotating shaft (2) is provided with gear 1 (4), and the middle part of the excitation shell (1) is rotatably connected to gear 2 (5) through rotating shaft 3. Gear 1 (4) is meshed with gear 2 (5).

6. The exciter according to claim 1, characterized in that: The left wall of the excitation shell (1) is provided with a circulation pipe (7), the lower end of the circulation pipe (7) is connected in series with an oil filter (6), the upper end of the circulation pipe (7) is connected in series with an oil pump (8), and the input end of the oil pump (8) is electrically connected to the output end of an external control switch.

7. The exciter according to claim 1, characterized in that: The excitation shell (1) has uniformly distributed mounting holes (9) on both the front and rear sides of its lower end.

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