Multi-frequency electric seismic source device suitable for continuous compaction of roadbed
By using a multi-frequency electric vibratory source device, the servo motor drives the falling hammer to achieve consistent hammering and rapid tooth replacement, solving the problems of large human factors and low detection accuracy under the manual vibratory source method, and realizing efficient and accurate detection of the compaction density of rockfill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-07
AI Technical Summary
The existing artificial seismic source method requires a lot of manpower and is greatly affected by human factors, resulting in low accuracy in detecting the compaction density of rockfill and making it difficult to ensure repeated testing at the same height, the same hammer point, and multiple frequencies.
A multi-frequency electric vibration source device is adopted, and the hammer is driven by a servo motor to achieve zero displacement of the hammer impact point and high hammer impact consistency. Combined with auxiliary components, the clamping teeth can be quickly installed and removed, reducing labor costs and improving the accuracy of test data.
It improves the consistency of seismic waves and the accuracy of detection results, reduces labor costs, expands the applicability and convenience of the device, and avoids detection errors caused by human factors.
Smart Images
Figure CN224092445U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rockfill compaction quality testing, specifically to a multi-frequency electric vibration source device suitable for continuous compaction of roadbeds. Background Technology
[0002] The evaluation of roadbed compaction effectiveness generally employs on-site water or sand filling methods; however, these are destructive testing methods and cannot be implemented on a large scale. To achieve continuous testing on compacted road sections, the added mass method is used to detect the compaction density of the rockfill. However, this method requires a seismic source to act near the test point to generate seismic waves. A vibration system consisting of the added mass and a geophone picks up the vibration signals, and the data is processed by a vibration signal acquisition and analysis instrument to obtain the density of the rockfill at the test point. In related technologies, artificial seismic sources are commonly used, where a hammer weighing approximately 50 kg is lifted to a certain height and allowed to fall freely, generating seismic waves. Therefore, while this artificial seismic source method is simple and convenient to operate, it requires a large amount of manpower, resulting in high labor costs and significant susceptibility to human factors, making it difficult to ensure repeated testing at the same height, the same hammer impact point, and multiple frequencies. Therefore, this artificial vibration method results in inaccurate data collected by the acquisition instrument, directly affecting the accuracy of the rockfill compaction density test.
[0003] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a multi-frequency electric vibratory source device suitable for continuous compaction of roadbeds. It features no displacement at the impact point, high consistency during impact, controllable multiple frequency impacts, and low labor costs. This significantly reduces the impact of human factors during manual hammering. When using the additional mass method for testing, it allows for more accurate data acquisition and improves the accuracy of test results. This solves the problem of requiring a large amount of manpower, resulting in high labor costs and significant susceptibility to human factors, making it difficult to ensure repeated testing at the same height, impact point, and multiple frequencies. This leads to inaccurate data acquisition by the data acquisition instrument, directly affecting the accuracy of rockfill compaction density testing.
[0006] (II) Technical Solution
[0007] To achieve the aforementioned advantages such as no displacement at the hammering point, high consistency during hammering, controllable hammering at multiple frequencies, and low labor costs, and to significantly reduce the impact of human factors during manual hammering, the use of the added mass method allows for more precise data acquisition and improves the accuracy of the test results, the specific technical solution adopted by this utility model is as follows:
[0008] A multi-frequency electric vibration source device suitable for continuous compaction of roadbed includes a base, a battery at one top end of the base, a servo motor at one side of the top of the battery, a control panel at the other side of the top of the battery, a main wheel base at the center of the top of the base, a drive assembly cooperating with the servo motor at the top of the main wheel base, several fixing holes on one side of the drive assembly, auxiliary components inside each fixing hole, a retaining tooth on one side of the auxiliary component, a hollow sleeve at the other top end of the base, a drop hammer inside the hollow sleeve, a fixing rod at the top of the drop hammer, and a lifting rod at the top of the fixing rod that cooperates with the retaining tooth.
[0009] Furthermore, in order to ensure a high degree of consistency in the lifting and releasing operations of the drop hammer under the action of the drive component, thereby avoiding detection errors caused by human factors during manual hammering, improving the consistency of the seismic waves generated by the hammering, and thus improving the detection efficiency of the multi-frequency electric seismic source device, the drive component includes a connecting block set at the top of the main wheel base. A rotating shaft is installed through one side of the connecting block. A large rotating wheel is fitted around the outer circumference of one side of the rotating shaft. A lifting main wheel that mates with a locking tooth is fitted around the outer circumference of the other side of the rotating shaft. A fixing hole is opened on one side wall of the lifting main wheel. A small rotating wheel that mates with the large rotating wheel is fitted around the output end of the servo motor. The large rotating wheel and the small rotating wheel are connected by a belt.
[0010] Furthermore, to enable rapid installation and disassembly of the locking teeth with the aid of the auxiliary components, and to prevent wear of the locking teeth after prolonged use from affecting subsequent lifting effects, thereby improving the convenience and applicability of the multi-frequency electric vibration source device, the auxiliary components include a disc set inside the fixing hole, several insert rods set inside the side wall of the disc, a rotating shaft set on one side of the disc, several insertion holes that mate with the insert rods opened on the inner wall of the fixing hole, several sliding grooves that mate with the insert rods opened on the outer circumference of the disc, a limiting groove opened on one side of the sliding groove, a fixing shaft set in the middle of one side of the disc, a limiting rod set on the side wall of one end of the insert rod that mates with the limiting groove, a rotating hole one that mates with the fixing shaft opened in the middle of one side of the rotating shaft, and several rotating holes two that mate with the limiting rods set eccentrically on one side wall of the rotating shaft, and the rotating holes two are set with an arc-shaped structure.
[0011] (III) Beneficial Effects
[0012] Compared with the prior art, this utility model provides a multi-frequency electric vibration source device suitable for continuous compaction of roadbeds, which has the following beneficial effects:
[0013] (1) This utility model has a reasonable and reliable structure and is easy to operate. The start and stop of the drive component can be controlled through the control panel. Under the action of the drive component, the lifting rod is lifted and the drop hammer is pulled up. After being lifted to a certain height, the locking teeth disengage from the lifting rod. After the lifting rod and the drop hammer lose tension, they undergo free fall. Under the action of the hollow sleeve, the drop hammer is restricted to moving only at a fixed point perpendicular to the ground. After the drop hammer hits the ground, it generates seismic waves. The continuous rotation of the lifting main wheel causes the drop hammer to repeatedly complete the free fall motion. Moreover, the seismic waves generated by hitting the ground multiple times at this frequency remain unchanged. The motor rotation can be changed through the control panel. After repeated free fall, seismic waves of different frequencies can be obtained. Under the action of the drive component, the lifting and releasing operation of the drop hammer is highly consistent, avoiding detection errors caused by human factors during manual hammering, and improving the consistency of the seismic waves generated by the hammering. This improves the detection efficiency of the multi-frequency electric seismic source device. At the same time, with the help of the auxiliary component, the locking teeth can be quickly installed and removed, avoiding wear of the locking teeth after long-term use, which affects the subsequent lifting effect. This improves the convenience and applicability of the multi-frequency electric seismic source device.
[0014] (2) By setting up the drive components, when different frequencies of seismic waves are needed, the servo motor is started through the control panel. The servo motor drives the small rotating wheel to rotate, which in turn drives the belt to move. The belt then drives the large rotating wheel to rotate, which in turn drives the lifting main wheel to rotate through the shaft. During the rotation of the lifting main wheel, the locking teeth contact the lifting rod, which lifts the lifting rod and pulls up the drop hammer through the fixed rod. After being lifted to a certain height, the locking teeth disengage from the lifting rod. After the lifting rod and the drop hammer lose tension, they fall freely within the hollow sleeve. The hollow sleeve restricts the drop hammer to move only at a fixed point perpendicular to the ground. After the drop hammer hits the ground, it generates seismic waves. The continuous rotation of the lifting main wheel causes the drop hammer to repeat the free fall motion. The seismic waves generated by hitting the ground multiple times at this frequency remain unchanged. Finally, by changing the speed of the servo motor through the control panel, the free fall motion of the drop hammer is repeated, and seismic waves of different frequencies can be obtained.
[0015] (3) By setting an auxiliary component, when the tooth needs to be installed, the auxiliary component is placed inside the fixing hole, and then the rotating shaft is turned clockwise, so that the rotating shaft rotates clockwise around the first rotating hole. With the cooperation of the second rotating hole and the limiting rod, the limiting rod moves away from the fixing shaft. When the limiting rod moves away from the fixing shaft, the insert rod moves outward in the slide groove. When the end of the insert rod moves into the insert hole, the rotating shaft is stopped, so that the tooth can be installed on the side wall of the lifting main wheel. When the tooth needs to be replaced, the rotating shaft is turned counterclockwise, so that the tooth rotates backward. The rotating shaft rotates in reverse around the first rotating hole, and with the cooperation of the second rotating hole and the limiting rod, the limiting rod moves closer to the fixed shaft. When the limiting rod moves closer to the fixed shaft, the insert rod moves inward in the groove. When the end of the insert rod leaves the inside of the insert hole, the rotating shaft stops turning, and the retaining tooth can be removed from the side wall of the lifting main wheel for replacement. This allows for quick installation and removal of the retaining tooth, avoiding wear on the retaining tooth after long-term use that could affect the subsequent lifting effect. This improves the convenience of the multi-frequency electric vibration source device and broadens its applicability. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a perspective view of a multi-frequency electric vibration source device suitable for continuous compaction of roadbed according to an embodiment of the present utility model;
[0018] Figure 2 This is a cross-sectional view of a multi-frequency electric vibration source device suitable for continuous compaction of roadbed according to an embodiment of the present utility model;
[0019] Figure 3 This is another perspective view of a multi-frequency electric vibration source device suitable for continuous compaction of roadbed according to an embodiment of the present utility model;
[0020] Figure 4 This is an assembly diagram of the locking teeth and auxiliary components in a multi-frequency electric vibration source device suitable for continuous compaction of roadbed according to an embodiment of the present utility model;
[0021] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;
[0022] Figure 6 This is a schematic diagram of the auxiliary components in a multi-frequency electric vibration source device suitable for continuous compaction of roadbed according to an embodiment of the present utility model;
[0023] Figure 7 This is a cross-sectional view of an auxiliary component in a multi-frequency electric vibration source device suitable for continuous compaction of roadbed, according to an embodiment of the present utility model.
[0024] Figure 8 This is a three-dimensional assembly drawing of auxiliary components in a multi-frequency electric vibration source device suitable for continuous compaction of roadbed, according to an embodiment of the present utility model.
[0025] Figure 9 This is a schematic diagram of the rotating shaft in a multi-frequency electric vibration source device suitable for continuous compaction of roadbed, according to an embodiment of the present invention.
[0026] In the picture:
[0027] 1. Base; 2. Battery; 3. Servo motor; 4. Control panel; 5. Main wheel base; 6. Drive assembly; 601. Connecting block; 602. Rotating shaft; 603. Large rotating wheel; 604. Lifting main wheel; 605. Small rotating wheel; 606. Belt; 7. Fixing hole; 8. Auxiliary assembly; 801. Disc; 8011. Slide groove; 8012. Limiting groove; 8013. Fixing shaft; 802. Insert rod; 8021. Limiting rod; 803. Rotating shaft; 8031. Rotating hole one; 8032. Rotating hole two; 804. Inserting hole; 9. Clamping tooth; 10. Hollow sleeve; 11. Drop hammer; 12. Fixing rod; 13. Lifting rod. Detailed Implementation
[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0029] According to an embodiment of the present invention, a multi-frequency electric vibration source device suitable for continuous compaction of roadbed is provided.
[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-9As shown, the multi-frequency electric vibration source device for continuous compaction of roadbed according to an embodiment of the present invention includes a base 1, a battery 2 is provided at one top end of the base 1, a servo motor 3 is provided on one side of the top of the battery 2, a control panel 4 is provided on the other side of the top of the battery 2, a main wheel base 5 is provided at the middle of the top of the base 1, a drive assembly 6 cooperating with the servo motor 3 is provided at the top of the main wheel base 5, a plurality of fixing holes 7 are provided on one side of the drive assembly 6, an auxiliary assembly 8 is provided inside each fixing hole 7, a retaining tooth 9 is sleeved on one side of the auxiliary assembly 8, a hollow sleeve 10 is provided at the other top end of the base 1, a drop hammer 11 is provided inside the hollow sleeve 10, a fixing rod 12 is provided at the top of the drop hammer 11, and a lifting rod 13 cooperating with the retaining tooth 9 is provided at the top of the fixing rod 12.
[0031] Furthermore, the structure and working principle of the battery 2, servo motor 3, and belt 606 are all existing technologies, and will not be elaborated on here.
[0032] In practical applications, the control panel 4 is equipped with a start / stop switch and a speed control button for the servo motor 3. The control panel 4 can also record and display the number of times the hammer 11 hits the ground during each strike. The hollow sleeve 10 is hollow and smooth inside, and its size is slightly larger than the hammer 11. The hammer 11 is an iron block weighing about 50kg, and the diameter of the hammer base is about 200mm.
[0033] In one embodiment, the drive assembly 6 includes a connecting block 601 at the top of the main wheel base 5. A rotating shaft 602 is provided through one side of the connecting block 601. A large rotating wheel 603 is sleeved on the outer circumference of one side of the rotating shaft 602. A lifting main wheel 604 that cooperates with the locking teeth 9 is sleeved on the outer circumference of the other side of the rotating shaft 602. A fixing hole 7 is opened on one side wall of the lifting main wheel 604. A small rotating wheel 605 that cooperates with the large rotating wheel 603 is sleeved on the output end of the servo motor 3. The large rotating wheel 603 and the small rotating wheel 605 are connected by a belt 606. Under the action of the drive assembly 6, the lifting and releasing operation of the drop hammer 11 is highly consistent, thereby avoiding detection errors caused by human factors during manual hammering, improving the consistency of the seismic waves generated by the hammering, and thus improving the detection efficiency of the multi-frequency electric seismic source device.
[0034] The specific working principle of the drive component 6 is as follows: When different frequencies of seismic waves are needed, the servo motor 3 is started through the control panel 4. The servo motor 3 drives the small rotating wheel 605 to rotate. Under the action of the small rotating wheel 605, the belt 606 is driven to move. Under the action of the belt 606, the large rotating wheel 603 is driven to rotate. The rotation of the large rotating wheel 603 drives the lifting main wheel 604 to rotate through the rotating shaft 602. During the rotation of the lifting main wheel 604, the locking teeth 9 come into contact with the lifting rod 13. The contact process will lift the lifting rod 13, thereby pulling it through the fixing rod 12. After the drop hammer 11 is raised to a certain height, the locking teeth 9 disengage from the lifting rod 13. After the lifting rod 13 and the drop hammer 11 lose tension, they undergo free fall within the hollow sleeve 10. The hollow sleeve 10 restricts the drop hammer 11 to move only at a fixed point perpendicular to the ground. After the drop hammer 11 strikes the ground, it generates seismic waves. The continuous rotation of the lifting main wheel 604 causes the drop hammer 11 to repeatedly complete the free fall motion. The seismic waves generated by striking the ground multiple times at this frequency remain unchanged. Finally, by changing the speed of the servo motor 3 through the control panel 4, the free fall motion process of the drop hammer 11 is repeated, and seismic waves of different frequencies can be obtained.
[0035] In one embodiment, the auxiliary component 8 includes a disc 801 disposed inside the fixing hole 7. A plurality of insert rods 802 are disposed within the side wall of the disc 801. A rotating shaft 803 is disposed on one side of the disc 801. A plurality of insertion holes 804 that mate with the insert rods 802 are formed on the inner wall of the fixing hole 7. A plurality of sliding grooves 8011 that mate with the insert rods 802 are formed on the outer circumferential wall of the disc 801. A limiting groove 8012 is formed on one side of each sliding groove 8011. A fixing shaft 8013 is disposed in the middle of one side of the disc 801. A rotating shaft 803 is disposed on one end of the side wall of the insert rod 802. A limiting rod 8021 is provided to cooperate with the limiting groove 8012. A rotating hole 8031 is provided in the middle of one side of the rotating shaft 803 to cooperate with the fixed shaft 8013. Several rotating holes 8032 are provided eccentrically on one side wall of the rotating shaft 803 to cooperate with the limiting rod 8021. The rotating holes 8032 are designed with an arc structure, so that the locking teeth 9 can be quickly installed and removed under the action of the auxiliary component 8. This avoids the wearing of the locking teeth 9 after long-term use, which affects the subsequent lifting effect. This improves the convenience of the multi-frequency electric vibration source device and makes it more widely applicable.
[0036] The specific working principle of auxiliary component 8 is as follows: When it is necessary to install the retaining tooth 9, place auxiliary component 8 inside the fixing hole 7, and then rotate the rotating shaft 803 clockwise, so that the rotating shaft 803 rotates clockwise around the rotating hole 8031. With the cooperation of the rotating hole 8032 and the limiting rod 8021, the limiting rod 8021 moves away from the fixing shaft 8013. When the limiting rod 8021 moves away from the fixing shaft 8013, the insert rod 802 moves outward in the sliding groove 8011. When the end of the insert rod 802 moves into the insert hole 804, stop rotating the rotating shaft 803, so that the retaining tooth 9 can be installed on the side wall of the lifting main wheel 604. When it is necessary to replace the retaining tooth 9, rotate the rotating shaft 803. Reversing the rotation causes the rotating shaft 803 to rotate around the rotating hole 8031. With the cooperation of the rotating hole 8032 and the limiting rod 8021, the limiting rod 8021 moves closer to the fixed shaft 8013. When the limiting rod 8021 moves closer to the fixed shaft 8013, the insert rod 802 moves inward in the sliding groove 8011. When the end of the insert rod 802 leaves the inside of the insert hole 804, the rotation of the rotating shaft 803 stops, and the retaining tooth 9 can be removed from the side wall of the lifting main wheel 604 for replacement. This allows for quick installation and removal of the retaining tooth 9, avoiding wear on the retaining tooth 9 after long-term use and preventing it from affecting the subsequent lifting effect. This improves the convenience of the multi-frequency electric vibration source device and broadens its applicability.
[0037] It should be explained that by adopting the above technical solution, the frequency of the drop hammer 11 being lifted and falling is only related to the rotation of the lifting main wheel 604, and the hammering position of the drop hammer 11 is related to the position of the hollow sleeve 10. Without increasing the rotation speed of the lifting main wheel 604 and the position of the hollow sleeve 10, the frequency, height, and hammering position of the drop hammer 11 of this multi-frequency electric seismic source device will not change. The seismic waves generated by the seismic source at the same location have high consistency, which can better provide a seismic source for the added mass method detection.
[0038] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0039] In practical applications, firstly, the battery 2 provides power to the servo motor 3 and control panel 4. The control panel 4 can control the start and stop of the drive assembly 6. After the drive assembly 6 is started, the output shaft of the servo motor 3 drives the small rotating wheel 605 to rotate. The small rotating wheel 605 drives the large rotating wheel 603 to rotate through the meshing belt 606. The rotation of the large rotating wheel 603, in turn, drives the lifting main wheel 604 to rotate through the rotating shaft 602. During the rotation of the lifting main wheel 604, the locking teeth 9 come into contact with the lifting rod 13. The contact process will lift the lifting rod 13, thereby pulling up the drop hammer 11. After the drop hammer 11 is lifted to a certain height, the locking teeth 9 disengage from the lifting rod 13. After the lifting rod 13 and the drop hammer 11 lose tension, they will undergo free fall. The hollow sleeve 10 restricts the drop hammer 11 to move only at a fixed point perpendicular to the ground. After the hammer strikes the ground, it generates seismic waves. The lifting main wheel 604 rotates continuously, causing the falling hammer 11 to repeatedly complete the free fall motion. The seismic waves generated by repeatedly striking the ground at this frequency remain unchanged. By changing the speed of the servo motor 3 through the control panel 4, the free fall motion process of the falling hammer 11 can be repeated to obtain seismic waves of different frequencies. After long-term use, wear will occur between the locking teeth 9 and the lifting rod 13. Therefore, with the help of the auxiliary component 8, the locking teeth 9 can be quickly installed and removed, avoiding the wear of the locking teeth 9 after long-term use from affecting the subsequent lifting effect. This improves the convenience of the multi-frequency electric seismic source device and makes it more widely applicable.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-frequency electric vibration source device suitable for continuous compaction of roadbed, comprising a base (1), characterized in that, A battery (2) is provided at one top end of the base (1), a servo motor (3) is provided on one side of the top of the battery (2), a control panel (4) is provided on the other side of the top of the battery (2), a main wheel base (5) is provided at the middle of the top of the base (1), a drive assembly (6) that cooperates with the servo motor (3) is provided on the top of the main wheel base (5), and a number of fixing holes (7) are provided on one side of the drive assembly (6), and an auxiliary assembly (8) is provided inside each fixing hole (7). The auxiliary component (8) has a locking tooth (9) on one side of its exterior. The other end of the top of the base (1) is provided with a hollow sleeve (10). A drop hammer (11) is provided inside the hollow sleeve (10). A fixing rod (12) is provided at the top of the drop hammer (11). A lifting rod (13) that cooperates with the locking tooth (9) is provided at the top of the fixing rod (12).
2. The multi-frequency electric vibration source device suitable for continuous compaction of roadbed according to claim 1, characterized in that, The drive assembly (6) includes a connecting block (601) at the top of the main wheel base (5). A rotating shaft (602) is provided through one side of the connecting block (601). A large rotating wheel (603) is sleeved on the outer circumference of one side of the rotating shaft (602). A lifting main wheel (604) that cooperates with the locking tooth (9) is sleeved on the outer circumference of the other side of the rotating shaft (602). The fixing hole (7) is opened on one side wall of the lifting main wheel (604).
3. A multi-frequency electric vibration source device suitable for continuous compaction of roadbeds according to claim 2, characterized in that, The output end of the servo motor (3) is fitted with a small rotating wheel (605) that cooperates with the large rotating wheel (603), and the large rotating wheel (603) and the small rotating wheel (605) are connected by a belt (606).
4. A multi-frequency electric vibration source device suitable for continuous compaction of roadbeds according to claim 3, characterized in that, The auxiliary component (8) includes a disc (801) disposed inside the fixing hole (7), a plurality of insert rods (802) disposed in the side wall of the disc (801), a rotating shaft (803) disposed on one side of the disc (801), and a plurality of insertion holes (804) that cooperate with the insert rods (802) are opened in the inner wall of the fixing hole (7).
5. A multi-frequency electric vibration source device suitable for continuous compaction of roadbeds according to claim 4, characterized in that, The outer circumferential wall of the disc (801) is provided with a plurality of sliding grooves (8011) that cooperate with the insert rod (802). A limiting groove (8012) is provided on one side of the sliding groove (8011), and a fixed shaft (8013) is provided in the middle of one side of the disc (801).
6. A multi-frequency electric vibration source device suitable for continuous compaction of roadbeds according to claim 5, characterized in that, One end of the insertion rod (802) is provided with a limiting rod (8021) that cooperates with the limiting groove (8012).
7. A multi-frequency electric vibration source device suitable for continuous compaction of roadbeds according to claim 6, characterized in that, The rotating shaft (803) has a rotating hole (8031) in the middle of one side, which cooperates with the fixed shaft (8013). The rotating shaft (803) has a plurality of rotating holes (8032) eccentrically arranged on one side wall, which cooperate with the limiting rod (8021), and the rotating holes (8032) are set in an arc shape.