Vibration exciter eccentric wheel capable of being rapidly and accurately positioned and installed and high-frequency breaking hammer

Abstract

The utility model discloses a vibration exciter eccentric wheel capable of being quickly and accurately positioned and installed and a high-frequency breaking hammer, the vibration exciter eccentric wheel comprises a rotating shaft, a gear and an eccentric block, and an installation adjusting mechanism is arranged between the eccentric block and the gear; the mounting and adjusting mechanism comprises a coupling sleeve rotationally arranged on the rotating shaft, an insertion positioning mechanism arranged between the coupling sleeve and the eccentric block, a first bolt arranged on the coupling sleeve and a second bolt arranged on the eccentric block; the two inserting grooves are formed in the coupling sleeve, the two protrusions are arranged on the eccentric block and matched with the inserting grooves, the difference between the two protrusions in the circumferential direction is 180 degrees, and when the gravity center of the eccentric block faces downwards, the connecting line of the two protrusions is in a horizontal state. The vibration exciter eccentric wheel is very convenient to install, the accuracy of the installation position of the eccentric block can be well guaranteed, and the installation precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator components, in particular to an eccentric wheel of a vibrator and a high-frequency breaker hammer which can be quickly and accurately positioned and installed. Background Art

[0002] High-frequency breaker is a new type of engineering machinery used for crushing or excavation operations. It is suitable for various mines, quarries, tunnel construction, foundation crushing, building demolition, as well as beaches, ditches, rivers, wetlands and other work sites. It has significant advantages in working conditions of sandstone, weathered rock, some limestone, and karst landform structures.

[0003] The principle of high-frequency breaker hammer is: the hydraulic motor drives the vibrator eccentric wheel in the vibrator to rotate and generate exciting force, and the vibrator box transmits the vibration to the hammer head, and the vibrating hammer head does work on the object, thereby achieving the purpose of crushing. There are usually multiple vibrator eccentric wheels, and multiple vibrator eccentric wheels rotate in opposite directions at high speed through gear meshing. The impact force of the vibrator comes from the centrifugal force generated when the vibrator eccentric wheel makes a circular motion. When the vibrator eccentric wheel is working, the direction of the centrifugal force it generates changes cyclically in the circumferential direction, among which the centrifugal force toward the front is an effective impact operation power. Multiple vibrator eccentric wheels are set so that the forces in the front and rear directions are superimposed on each other, and the forces in the up and down directions cancel each other out, and the hammer head is periodically driven to work on the object to be crushed.

[0004] The exciter eccentric wheel includes a rotating shaft, a gear and an eccentric block, and the gear and the eccentric block are fixed on the rotating shaft. In order to achieve the superposition of the forces of multiple exciter eccentric wheels in the front and rear directions and the mutual cancellation of the forces in the up and down directions, the installation positions of the eccentric blocks of the upper and lower adjacent exciter eccentric wheels need to differ by 180° in the circumferential direction. If there is a deviation, the impact force of the exciter will be weakened and the high-frequency breaker will produce excessive vibration during operation. Therefore, during the installation of the exciter eccentric wheel, ensuring the angle difference between adjacent exciter eccentric wheels is a very critical assembly link. Since adjacent exciter eccentric wheels are usually connected by gears to achieve synchronous movement, the gears and eccentric wheels are set on the same axis. Therefore, during the installation process, both the meshing between the gears and the angle difference between the eccentric wheels must be ensured, making the installation and debugging very difficult. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned problems and provide an eccentric wheel for a vibrator that can be quickly and accurately positioned and installed. The eccentric wheel for the vibrator is very convenient to install and can well ensure the accuracy of the installation position of the eccentric block with high installation accuracy.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] An eccentric wheel of an exciter that can be quickly and accurately positioned and installed comprises a rotating shaft, a gear and an eccentric block, wherein the gear is arranged at the middle position of the rotating shaft, and the eccentric blocks are symmetrically arranged on both sides of the gear; the eccentric block is slidably and rotatably connected with the rotating shaft, and an installation adjustment mechanism is arranged between the eccentric block and the gear;

[0008] The installation and adjustment mechanism includes a coupling sleeve rotatably arranged on the rotating shaft, a plug-in positioning mechanism arranged between the coupling sleeve and the eccentric block, a first bolt arranged on the coupling sleeve for fixing the coupling sleeve on the rotating shaft, and a second bolt arranged on the eccentric block for fixing the eccentric block on the rotating shaft. The plug-in positioning mechanism includes two slots arranged on the coupling sleeve and two protrusions arranged on the eccentric block and matching the slots, the two protrusions differ by 180° in the circumferential direction, and when the center of gravity of the eccentric block is downward, the connecting line of the two protrusions is in a horizontal state.

[0009] The working principle of the above-mentioned vibrator eccentric wheel which can be quickly and accurately positioned and installed is:

[0010] During the installation of the exciter eccentric wheel, the gears of the two adjacent exciter eccentric wheels are meshed with each other. When one of the rotating shafts is rotated, the gear on the other rotating shaft will also rotate. First, all the exciter eccentric wheels are installed on the inner box of the high-frequency breaker. During installation, the first bolt and the second bolt need to be loosened so that the eccentric block and the coupling sleeve can rotate on the rotating shaft. The eccentric block and the coupling sleeve are connected together by a plug-in positioning mechanism, that is, the protrusion is inserted into the slot, and the coupling sleeve is connected to the eccentric block, so that the coupling sleeve and the eccentric block can rotate at the same time; after the first bolt and the second bolt are loosened, the center of gravity of the eccentric block is downward, and under the action of gravity, the eccentric block and the coupling sleeve are in a certain state, and then all the coupling sleeves are fixed on the rotating shaft by tightening the first bolt, and then The eccentric block that does not need to rotate is pulled outward along the axial direction of the rotating shaft, and the plug-in positioning mechanism is separated, that is, the protrusion and the slot are separated from each other, so that the eccentric block is separated from the coupling sleeve, and the rotation of the coupling sleeve will not drive the eccentric block to move; rotate one of the rotating shafts to make the rotating shaft rotate 180°. At this time, all the gears will rotate with it, driving all the coupling sleeves to rotate, and the eccentric block connected to the coupling sleeve through the plug-in positioning mechanism will also rotate 180°, with the eccentric block facing upward; the eccentric block separated from the coupling sleeve will not rotate with the coupling sleeve, and then the eccentric block is pushed inward along the axial direction of the rotating shaft, and the eccentric block is connected to the coupling sleeve through the plug-in positioning mechanism. At this time, the eccentric blocks of the two adjacent exciter eccentric wheels are 180° apart; finally, all the eccentric blocks are fixed to the rotating shaft by the second bolt.

[0011] In the above structure, since the slot and the protrusion are connected with each other, there are two protrusions. When the angle of the eccentric block is adjusted, the eccentric block is in a natural state, the two protrusions are in a horizontal state, and the two slots are also in a horizontal state. At this time, by tightening the first bolt, the coupling sleeve is fixed on the rotating shaft. The coupling sleeve has a certain position at this time. During adjustment, the eccentric block that does not need to be rotated is pulled outward along the axial direction of the rotating shaft, and the protrusion and the slot are separated from each other. After the rotating shaft is rotated 180°, the eccentric block that has not been separated is rotated back 180°. Due to the symmetrical setting, the slot is also in a horizontal state at this time. Then the protrusion of the eccentric block that has not been rotated is inserted into the slot to complete the positioning of the eccentric block, so that the upper and lower eccentric blocks are exactly 180° apart, thereby realizing the precise installation of the eccentric block.

[0012] A preferred solution of the utility model is that a spring is provided on the outer side of the eccentric block, and the spring sleeve is arranged on the rotating shaft. In the above structure, after the eccentric wheel of the vibrator is installed on the inner box of the high-frequency breaker, one end of the spring acts on the eccentric block, and the other end of the spring acts on the inner box; under the elastic force of the spring, it can be ensured that the eccentric block is always pressed against the coupling sleeve, so that the slot and the protrusion will not be separated, so that the two are matched with each other, and the stability of the structure is ensured. When the second bolt is not tightened, the eccentric block can also rotate with the coupling sleeve under the tightness of the spring; when adjusting, the eccentric block needs to overcome the elastic force of the spring to be pulled outward along the axial direction of the rotating shaft. After adjustment, the protrusion of the eccentric block can be directly pushed into the slot by the elastic force of the spring, and the installation is also relatively convenient.

[0013] Preferably, a connecting ring is provided on the inner side of the eccentric block, and the protrusion and the second bolt are provided on the connecting ring. The connecting ring is provided to facilitate the installation of the second bolt.

[0014] Preferably, the coupling sleeve and the connecting ring are both provided with threaded holes, the first bolt is installed on the threaded hole of the coupling sleeve, and the second bolt is installed on the threaded hole of the connecting ring. The threaded holes can cooperate with the first bolt and the second bolt to fix the coupling sleeve and the connecting ring.

[0015] Preferably, the first bolt and the second bolt are provided in plurality, and the plurality of first bolts and the second bolts are distributed along the circumferential direction. By providing a plurality of first bolts and the second bolts, the stability of the coupling sleeve and the connecting ring is improved, and it is ensured that the coupling sleeve and the eccentric block will not loosen when the eccentric wheel of the exciter is working.

[0016] A high-frequency breaker hammer comprises an outer box, a hammer head, an exciter arranged inside the outer box and used to drive the hammer head to vibrate, and a connecting rod mechanism arranged between the outer box and the exciter; wherein:

[0017] The exciter comprises an inner box and a vibration source arranged on the inner box; one end of the connecting rod mechanism is connected to the inner box, and the other end of the connecting rod mechanism is connected to the outer box; the hammer head is fixed to the front end of the inner box;

[0018] The vibration source includes two rows of vibrator eccentric wheels arranged in parallel in the up-down direction inside the inner box body and a hydraulic motor for driving the vibrator eccentric wheels to move; wherein, there are multiple vibrator eccentric wheels in each row, and the multiple vibrator eccentric wheels are arranged in the front-to-back direction, and the gears in two adjacent vibrator eccentric wheels are meshed with each other. In the above structure, the hydraulic motor provides power to the vibrator eccentric wheels, so that the vibrator eccentric wheels rotate, and under the inertia of the vibrator eccentric wheels, the inner box body vibrates, thereby driving the hammer head to vibrate.

[0019] Preferably, the eccentric blocks in two adjacent exciter eccentric wheels are arranged symmetrically. The above structure enables the eccentric blocks of the adjacent exciter eccentric wheels in the vertical direction and the adjacent front and back direction to face opposite directions, so that the forces of the multiple exciter eccentric wheels in the front and back directions are superimposed on each other, and the forces in the vertical direction are offset against each other.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The eccentric wheel of the vibrator in the utility model can realize the connection and separation between the coupling sleeve and the eccentric block through the plug-in positioning mechanism. By loosening the first screw and the second screw, the eccentric block and the coupling sleeve can be rotated on the rotating shaft. In a natural state, the initial positioning of the eccentric block and the coupling sleeve can be realized. By tightening the first screw and fixing the coupling sleeve, the rotating shaft can be rotated to realize the precise adjustment of the eccentric block by 180°, thereby realizing that the eccentric blocks of two adjacent vibrator eccentric wheels differ by 180°. The installation is very convenient, and the accuracy of the installation position of the eccentric block can be well guaranteed, and the installation accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of one specific implementation mode of an exciter eccentric wheel that can be quickly and accurately positioned and installed in the utility model.

[0023] Figure 2 It is the front view of the eccentric wheel of the vibration exciter in the utility model.

[0024] Figure 3 This is an exploded view of the eccentric wheel of the vibration exciter in the utility model after the first bolt and the second bolt are omitted.

[0025] Figure 4 It is an exploded view of the coupling sleeve and the connecting ring in the utility model.

[0026] Figure 5 It is a three-dimensional structural schematic diagram of a high-frequency breaker in the utility model.

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the high-frequency breaker in the utility model after the outer box body is omitted.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the inner box body of the utility model after partial cutting.

[0029] Figure 8 It is a schematic structural diagram of the connection of multiple exciter eccentric wheels in the utility model. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0031] Example 1

[0032] See also Figure 1-Figure 3 The present embodiment discloses an eccentric wheel of an exciter which can be quickly and accurately positioned and installed, comprising a rotating shaft 1, a gear 2 and an eccentric mass 3, wherein the gear 2 is arranged at the middle position of the rotating shaft 1, and the eccentric mass 3 is symmetrically arranged on both sides of the gear 2; the eccentric mass 3 is slidably and rotatably connected with the rotating shaft 1, that is, the eccentric mass 3 can rotate on the rotating shaft 1 and can also move along the axis of the rotating shaft 1; an installation and adjustment mechanism is arranged between the eccentric mass 3 and the gear 2; the installation and adjustment mechanism comprises a coupling sleeve 4 rotatably arranged on the rotating shaft 1, a plug-in positioning mechanism 5 arranged between the coupling sleeve 4 and the eccentric mass 3, a first bolt 6 arranged on the coupling sleeve 4 for fixing the coupling sleeve 4 on the rotating shaft 1, and a second bolt 7 arranged on the eccentric mass 3 for fixing the eccentric mass 3 on the rotating shaft 1.

[0033] See also Figure 1-Figure 4The plug-in positioning mechanism 5 includes two slots 5-1 arranged on the coupling sleeve 4 and two protrusions 5-2 arranged on the eccentric block 3 and matching the slots 5-1. The two protrusions 5-2 differ by 180° in the circumferential direction, and when the center of gravity of the eccentric block 3 is downward, the connecting line of the two protrusions 5-2 is in a horizontal state. In the above structure, since the slot 5-1 and the protrusion 5-2 are connected with each other, and two protrusions 5-2 are provided, when the angle of the eccentric block 3 is adjusted, the eccentric block 3 is in a natural state, and the two protrusions 5-2 are in a horizontal state, and the two slots 5-1 are also in a horizontal state at this time. At this time, by tightening the first bolt 6, the coupling sleeve 4 is fixed on the rotating shaft 1, and the coupling sleeve 4 has a certain position at this time. When adjusting, the eccentric block 3 that does not need to be rotated is pulled outward along the axial direction of the rotating shaft 1, and the protrusion 5-2 and the slot 5-1 are separated from each other. After the rotating shaft 1 is rotated 180°, the eccentric block 3 that has not been separated is rotated back 180°. Due to the symmetrical setting, the slot 5-1 is also in a horizontal state at this time, and then the protrusion 5-2 of the eccentric block 3 that has not been rotated is inserted into the slot 5-1 to complete the positioning of the eccentric block 3, so that the upper and lower eccentric blocks 3 are exactly 180° apart, thereby realizing the precise installation of the eccentric block 3.

[0034] See also Figure 1-Figure 4 The two protrusions 5-2 differ by 180° in the circumferential direction, and correspondingly, the two slots 5-1 also differ by 180° in the circumferential direction. When the coupling sleeve 4 is fixed on the rotating shaft 1, the coupling sleeve 4 and the rotating shaft 1 rotate by 180°, and the two slots 5-1 also rotate by 180°, and the eccentric block 3 remains stationary. The two slots 5-1 rotated by 180° can cooperate with the two protrusions 5-2 on the unrotated eccentric block 3, that is, the two slots 5-1 differ by 180° in the circumferential direction from the two protrusions 5-2, which can ensure that after the coupling sleeve 4 is rotated, the two protrusions 5-2 can still cooperate with the two slots 5-1, ensuring that the two protrusions 5-2 can be accurately positioned, and finally the eccentric blocks 3 of the two adjacent exciter eccentric wheels are 180° apart.

[0035] See also Figure 1-Figure 4 and Figure 6, a spring 8 is provided on the outer side of the eccentric block 3, and the spring 8 is sleeved on the rotating shaft 1. In the above structure, after the eccentric wheel of the vibration exciter is installed on the inner box 14 of the high-frequency breaker, one end of the spring 8 acts on the eccentric block 3, and the other end of the spring 8 acts on the inner box 14; under the elastic force of the spring 8, it can be ensured that the eccentric block 3 is always pressed against the coupling sleeve 4, so that the slot 5-1 and the protrusion 5-2 will not be separated, so that the two are matched with each other, ensuring the stability of the structure. When the second bolt 7 is not tightened, the eccentric block 3 can also rotate with the coupling sleeve 4 under the tightness of the spring 8; when adjusting, the eccentric block 3 needs to overcome the elastic force of the spring 8 to be pulled outward along the axial direction of the rotating shaft 1. After adjustment, the protrusion 5-2 of the eccentric block 3 can be directly pushed into the slot 5-1 by the elastic force of the spring 8, and the installation is also relatively convenient.

[0036] See also Figure 1-Figure 4 A connecting ring 9 is provided on the inner side of the eccentric block 3, and the protrusion 5-2 and the second bolt 7 are provided on the connecting ring 9; the connecting ring 9 is connected to the eccentric block 3 by screws. The connecting ring 9 is provided to facilitate the installation of the second bolt 7.

[0037] See also Figure 1-Figure 4 The coupling sleeve 4 and the connecting ring 9 are both provided with threaded holes 10, the first bolt 6 is installed on the threaded hole 10 of the coupling sleeve 4, and the second bolt 7 is installed on the threaded hole 10 of the connecting ring 9. The threaded holes 10 can cooperate with the first bolt 6 and the second bolt 7 to fix the coupling sleeve 4 and the connecting ring 9.

[0038] See also Figure 1-Figure 3 The first bolt 6 and the second bolt 7 are provided in plurality, and the plurality of first bolts 6 and the second bolts 7 are distributed along the circumferential direction. By providing a plurality of first bolts 6 and second bolts 7, the stability of the coupling sleeve 4 and the connecting ring 9 is improved, ensuring that the coupling sleeve 4 and the eccentric block 3 will not loosen when the eccentric wheel of the exciter is working.

[0039] See also Figure 1-Figure 3 The first bolt 6 and the second bolt 7 can be hexagon socket bolts to ensure a compact structure.

[0040] See also Figure 1-Figure 3 and Figure 6 The working principle of the above-mentioned vibrator eccentric wheel which can be quickly and accurately positioned and installed is:

[0041] During the installation of the exciter eccentric wheel, the gears 2 of the two adjacent exciter eccentric wheels are meshed with each other. When one of the rotating shafts 1 is rotated, the gear 2 on the other rotating shaft 1 will also rotate. First, all the exciter eccentric wheels are installed on the inner box 14 of the high-frequency breaker. During installation, the first bolt 6 and the second bolt 7 need to be loosened so that the eccentric block 3 and the coupling sleeve 4 can rotate on the rotating shaft 1. The eccentric block 3 and the coupling sleeve 4 are connected together by the plug-in positioning mechanism 5, that is, the protrusion 5-2 is inserted into the slot 5-1 at this time, and the eccentric block 3 and the coupling sleeve 4 can rotate at the same time; after the first bolt and the second bolt are loosened, the center of gravity of the eccentric block 3 is downward, and under the action of gravity, the eccentric block 3 and the coupling sleeve 4 are in a certain state, and then all the coupling sleeves 4 are fixed on the rotating shaft 1 by tightening the first bolt 6, and then the eccentric block 3 that does not need to rotate is pulled out along the axial direction of the rotating shaft 1. , the protrusion 5-2 and the slot 5-1 are separated from each other, so that the eccentric block 3 is separated from the coupling sleeve 4, and the rotation of the coupling sleeve 4 will not drive the eccentric block 3 to move; rotate one of the rotating shafts 1 to make the rotating shaft 1 rotate 180°. At this time, all the gears 2 will rotate with it, driving all the coupling sleeves 4 to rotate, and the unseparated coupling sleeves 4 will rotate 180° together with the eccentric block 3. At this time, the eccentric block 3 changes from a naturally downward state to an upward state; the eccentric block 3 separated from the coupling sleeve 4 will not rotate with the coupling sleeve 4, and then the eccentric block 3 is pushed inward along the axial direction of the rotating shaft 1, and the protrusion 5-2 of the unrotated eccentric block 3 is inserted into the slot 5-1 to complete the positioning of the eccentric block 3. The eccentric block 3 is connected to the coupling sleeve 4, and the eccentric block 3 is in a downward state. At this time, the eccentric blocks 3 of the two adjacent exciter eccentric wheels differ by 180°; finally, all the eccentric blocks 3 are fixed to the rotating shaft 1 by the second bolt 7 to complete the installation.

[0042] Example 2

[0043] The other structures in this embodiment are the same as those in embodiment 1, except that the plug-in positioning mechanism includes a slot provided on the eccentric block and a protrusion provided on the coupling sleeve, and the slot and the protrusion are connected to each other in a cooperative manner. The above structure can also realize the connection, positioning and separation of the eccentric block and the coupling sleeve.

[0044] The slot is arranged on the connecting ring.

[0045] Example 3

[0046] The other structures in this embodiment are the same as those in Embodiment 1, except that the connecting ring, the protrusion and the eccentric block are integrally arranged.

[0047] Example 4

[0048] See also Figure 5-Figure 7This embodiment discloses a high-frequency breaker, including an outer box body 11, a hammer head 12, an exciter arranged inside the outer box body 11 and used to drive the hammer head 12 to vibrate, and a connecting rod mechanism 13 arranged between the outer box body 11 and the exciter.

[0049] See also Figure 5-Figure 7 The exciter includes an inner box 14 and a vibration source arranged on the inner box 14; one end of the connecting rod mechanism 13 is connected to the inner box 14, and the other end of the connecting rod mechanism 13 is connected to the outer box 11; the hammer head 12 is fixed at the front end of the inner box 14.

[0050] See also Figure 5-Figure 8 , the vibration source includes two rows of vibrator eccentrics 15 as described in Example 1 or Example 2 or Example 3, which are arranged inside the inner box 14 and arranged in parallel along the up-down direction, and a hydraulic motor 16 for driving the vibrator eccentrics 15 to move; wherein, there are multiple vibrator eccentrics 15 in each row, and the multiple vibrator eccentrics 15 are arranged along the front-to-back direction, and the gears 2 in two adjacent vibrator eccentrics are meshed with each other. In the above structure, the hydraulic motor 16 provides power to the vibrator eccentric 15, so that the vibrator eccentric 15 rotates, and under the inertia of the vibrator eccentric 15, the inner box 14 vibrates, thereby driving the hammer head 12 to vibrate.

[0051] See also Figure 5-Figure 8 The eccentric masses 3 in two adjacent vibrator eccentric wheels are arranged symmetrically. The above structure enables the eccentric masses 3 of the vibrator eccentric wheels adjacent to each other in the vertical direction and the front and back direction to face opposite directions, so that the forces of the multiple vibrator eccentric wheels in the front and back directions are superimposed on each other, and the forces in the vertical direction are offset against each other.

[0052] See also Figure 5-Figure 8 , the rotating shaft 1 is connected to the inner box 14 through a bearing, and the hydraulic motor 16 is connected to the rotating shaft 1. The vibration source is an eight-vibration source, that is, there are eight exciter eccentric wheels 15, and each row of exciter eccentric wheels 15 has four. The above structure uses eight vibration sources to effectively improve the impact force of crushing. The number of the hydraulic motors 16 can be multiple, and multiple hydraulic motors 16 are correspondingly connected to multiple rotating shafts 1 to increase the crushing power.

[0053] See also Figure 5-Figure 7The connecting rod mechanism 13 includes a first connecting rod 13-1 and a second connecting rod 13-2, one end of the first connecting rod 13-1 is hinged to the rear end of the inner box 14, and the other end of the first connecting rod 13-1 is hinged to the rear end of the outer box 11; one end of the second connecting rod 13-2 is hinged to the front end of the inner box 14 or the rear end of the hammer 12; the other end of the second connecting rod 13-2 is hinged to the front end of the outer box 11. In the above structure, under the action of the first connecting rod 13-1 and the second connecting rod 13-2, the vibration source drives the inner box 14 to swing back and forth, and the hammer 12 impacts and crushes the object.

[0054] The above is a preferred implementation mode of the present invention, but the implementation mode of the present invention is not limited by the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An eccentric wheel for an exciter that can be quickly and accurately positioned and installed, characterized in that: It includes a rotating shaft, a gear and an eccentric block, wherein the gear is arranged in the middle of the rotating shaft, and the eccentric blocks are symmetrically arranged on both sides of the gear; the eccentric block is slidably and rotatably connected with the rotating shaft, and a mounting adjustment mechanism is arranged between the eccentric block and the gear; wherein, The installation and adjustment mechanism includes a coupling sleeve rotatably arranged on the rotating shaft, a plug-in positioning mechanism arranged between the coupling sleeve and the eccentric block, a first bolt arranged on the coupling sleeve for fixing the coupling sleeve on the rotating shaft, and a second bolt arranged on the eccentric block for fixing the eccentric block on the rotating shaft. The plug-in positioning mechanism includes two slots arranged on the coupling sleeve and two protrusions arranged on the eccentric block and matching the slots, the two protrusions differ by 180° in the circumferential direction, and when the center of gravity of the eccentric block is downward, the connecting line of the two protrusions is in a horizontal state.

2. The eccentric wheel of the vibration exciter that can be quickly and accurately positioned and installed according to claim 1 is characterized in that: A spring is arranged on the outer side of the eccentric block, and the spring is sleeved on the rotating shaft.

3. The eccentric wheel of the vibration exciter that can be quickly and accurately positioned and installed according to claim 1 is characterized in that: A connecting ring is provided on the inner side of the eccentric block, and the protrusion and the second bolt are arranged on the connecting ring.

4. The eccentric wheel of the vibration exciter that can be quickly and accurately positioned and installed according to claim 3 is characterized in that: The coupling sleeve and the connecting ring are both provided with threaded holes, the first bolt is installed on the threaded hole of the coupling sleeve, and the second bolt is installed on the threaded hole of the connecting ring.

5. The eccentric wheel of the vibration exciter that can be quickly and accurately positioned and installed according to claim 4 is characterized in that: There are a plurality of the first bolts and the second bolts, and the plurality of the first bolts and the second bolts are distributed along the circumferential direction.

6. A high frequency breaker, characterized in that: It includes an outer box, a hammer head, an exciter arranged inside the outer box and used to drive the hammer head to vibrate, and a connecting rod mechanism arranged between the outer box and the exciter; wherein, The exciter comprises an inner box and a vibration source arranged on the inner box; one end of the connecting rod mechanism is connected to the inner box, and the other end of the connecting rod mechanism is connected to the outer box; the hammer head is fixed to the front end of the inner box; The vibration source includes two rows of vibrator eccentric wheels as described in any one of claims 1 to 5, which are arranged inside the inner box and in parallel along the up and down direction, and a hydraulic motor for driving the vibrator eccentric wheels to move; wherein, there are multiple vibrator eccentric wheels in each row, and the multiple vibrator eccentric wheels are arranged along the front-to-back direction, and the gears in two adjacent vibrator eccentric wheels are meshed with each other.

7. A high frequency breaker according to claim 6, characterized in that: The eccentric blocks in the eccentric wheels of two adjacent vibrators are arranged in a centrally symmetrical manner.

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