An eccentric block device for a built-in outer rotor servo motor

Abstract

The present invention provides an eccentric block device for a built-in outer rotor servo motor, which relates to the technical field of mechanical tools, in order to solve the problem that there is no convenient counterweight structure and buffering and adjusting balancing structure installed in the original eccentric block, which causes the eccentric block to reduce the rotation vibration strength of the built-in outer rotor servo motor, and also reduces the free adjustment function of the eccentric block to increase or decrease gravity. In addition, the eccentric block cannot use the external structure to buffer the inertia of rotation, which reduces the buffering function of the eccentric block that can rotate freely in a balanced manner or stop, and at the same time reduces the practicality of the eccentric block. The device includes a fixed structure; the outer and inner ends of the fixed structure are respectively interspersed with the adjustment structure. In the present invention, since the fixing groove is an irregular annular structure, the outer side surface of the lower end of the fixing groove is respectively fixedly installed with a protruding cylindrical outer column, and the special shape of the fixing groove makes it easy to be used when the eccentric block is rotating.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical tools, and more specifically, to an eccentric block device of a built-in outer rotor servo motor. Background Art

[0002] A set of adjustable eccentric blocks are installed at both ends of the rotor shaft, and the centrifugal force generated by the high-speed rotation of the shaft and the eccentric blocks is used to obtain the exciting force. The eccentric block device of the built-in outer rotor servo motor can increase the range of the vibration frequency of the servo motor. Only when the exciting force and power are properly matched can the mechanical noise be reduced. The eccentric block device of the built-in outer rotor servo motor can also perform appropriate buffering when stopping and balance the inertia generated by the rotation, thereby increasing the practicality of the servo motor.

[0003] For example, the patent number CN111509900A, the invention belongs to the technical field of papermaking auxiliary equipment, and specifically refers to an eccentric block device and a shaking mechanism with a built-in outer rotor servo motor, including a core frame and at least one pair of eccentric block groups symmetrically arranged on the core frame, the eccentric block group includes an eccentric block, an outer rotor servo motor and a pressure ring, each of the eccentric blocks is formed with a mounting groove for setting the outer rotor servo motor, the pressure ring fixes the outer rotor servo motor in the mounting groove of the eccentric block, and the outer shell of the outer rotor servo motor is linked to the eccentric block through a key. The new shaking device of the present invention includes four symmetrically installed eccentric blocks, and the eccentric blocks are directly driven by the outer rotor servo motor to convert electrical energy into mechanical energy, so the energy conversion efficiency is high. Under the condition of equal output power, the weight and volume are greatly reduced, and the shaking function can be realized in a free, flexible and diverse form, and the shaking function can be realized in the most economical, practical and closest to the working principle.

[0004] For example, the patent number CN106743970A relates to an eccentric block, the front of which is spiral-shaped and has a certain thickness. A hole is provided in the middle part perpendicular to the front. The center of the hole is not the center of the eccentric block, and the distance from the center of the hole to each point on the edge of the eccentric block is different. The edge of the eccentric block is provided with a hole for fixing the eccentric block to prevent it from rotating, and the side is also provided with a hole for rotating the eccentric block. Its advantages are: simple operation and high precision.

[0005] Based on the search of the above two patents and combined with the equipment in the prior art, it was found that since the original eccentric block was not equipped with a convenient counterweight structure and a buffering and adjusting balance structure, the eccentric block could not freely add a weight structure according to the actual vibration usage needs, which not only reduced the rotation vibration strength of the built-in outer rotor servo motor, but also reduced the eccentric block's free adjustment function of increasing or decreasing gravity. In addition, when the eccentric block suddenly stops, the eccentric block cannot but use the external structure to buffer the inertia of rotation, which reduces the eccentric block's buffering function of freely balancing rotation or stopping, and at the same time reduces the practicability of the eccentric block. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides an eccentric block device for an internal outer rotor servo motor to solve the problem that the original eccentric block is not equipped with a convenient counterweight structure and a buffering and adjusting balance structure, resulting in the eccentric block reducing the rotational vibration strength of the internal outer rotor servo motor, while also reducing the eccentric block's free adjustment function of increasing or decreasing gravity. In addition, the eccentric block cannot use an external structure to buffer the inertia of rotation, which reduces the eccentric block's buffering function of freely balancing rotation or stopping, and at the same time reduces the practicability of the eccentric block.

[0007] The purpose and effect of the eccentric block device of the internal outer rotor servo motor of the present invention are achieved by the following specific technical means;

[0008] An eccentric block device for a built-in external rotor servo motor comprises a fixed structure; an adjusting structure is inserted and installed at the outer inner ends of the fixed structure; a load-bearing structure is fixedly installed at the hollow part of the lower end of the adjusting structure; a pair of L-shaped grooves are fixedly installed at the central upper ends of the left and right sides of the fixed structure and the adjusting structure; the outer end faces of the adjusting structure are respectively connected and installed with weight-increasing structures in vertical parallel relation; a rotating structure is slidably installed at the central outer side of the weight-increasing structure; the fixed structure comprises a main shaft cylinder, a center hole groove and an adjusting hole, the main shaft cylinder is a hollow cylindrical structure with an I-shaped side, and a hollow cylindrical center hole groove is provided on the central inner side of the main shaft cylinder, and a circle of hollow adjustment holes are provided in a ring on the outer end faces of the main shaft cylinder.

[0009] Furthermore, the adjustment structure includes an adjustment plate, grooves, vertical holes and outward-expanded holes. The adjustment plate is an irregular semicircular hollow structure, and a group of hollow grooves are respectively opened on the outer surface of the lower end of the adjustment plate, and a pair of threaded vertical holes are respectively opened vertically on the left and right sides of the adjustment plate, and a group of outward-expanded holes are respectively opened horizontally on the end surface of the central outer circle of the adjustment plate.

[0010] Furthermore, the load-bearing structure includes a weight block and a reinforcement rod. The weight block is a solid irregular quadrilateral structure similar to a fan, and a group of long strip-shaped reinforcement rods with threads are installed through the inner side of the weight block.

[0011] Furthermore, the weight-increasing structure includes a positioning plate, a slide groove and a sliding cross bar. A U-shaped hollow slide groove is fixedly installed on the outer surface of the positioning plate. The sliding cross bar is composed of a disc-shaped structure and a spherical structure, and the inner spherical structure of the sliding cross bar is slidably buckled and installed on the hollow inner side of the slide groove.

[0012] Furthermore, the rotating structure includes a fixed groove, an outer column, a clamping plate and a recess, and the fixed groove is an irregular annular structure, and a protruding cylindrical outer column is fixedly installed on the outer side surface of the lower end of the fixed groove, and a circle of arc-shaped clamping plates are installed around the central inner end of the fixed groove, and a group of springs are installed on the inner end surface of the clamping plate, and the clamping plates are respectively connected and installed on the central inner side of the fixed groove, and a pair of arc-shaped recesses are installed corresponding to the protruding circular ring position in the middle section of the fixed groove.

[0013] Furthermore, a group of vertical holes are respectively provided on the upper end faces of the L-shaped grooves, and fixing screws installed vertically in the center of the vertical holes respectively fix the L-shaped grooves and the adjustment plates together, and a group of adjustment holes are provided on the innermost circle end faces of the adjustment plates, and fixing screws installed horizontally in the center of the adjustment holes respectively fix the main shaft tube and the adjustment plates together, and the adjustment plates are repeatedly adjusted and installed on the hollow outer end faces of the main shaft tube through a circle of adjustment holes, and an arc-shaped groove is provided at the center of the adjustment plates, and the arc-shaped grooves are tightly installed on the outer end faces of the center hole grooves.

[0014] Furthermore, the weight blocks on the load-bearing structure are installed by a group of reinforcement rods that penetrate upward respectively, and the grooves are hollow grooves composed of irregular fan shapes and thread shapes, and the weight blocks and the adjustment plates are installed together corresponding to the grooves opened at the lower ends, and a group of weight blocks are installed correspondingly on the central inner sides of the grooves, and the sliding cross bar is connected and installed on the central inner sides of the fixed grooves, and the fixed grooves are fixed by a disc-shaped structure installed on the outer sides of the sliding cross bar.

[0015] Furthermore, the grooves on the adjustment structure are used to adjust and install the weight blocks, the L-shaped grooves reinforce the installation of the adjustment plates and the positioning plates, and the power rod is fixedly installed on the inner side of the center hole groove and rotates the main shaft cylinder. The main shaft cylinder drives the adjustment plate and the positioning plate to rotate synchronously at the same time, and the rotating positioning plate rotates the sliding cross bar to the hollow inner side of the slide groove, and a circle of clamping plates repeatedly slides and supports the sliding cross bar until the outer column rotates to the outermost side. When the main shaft cylinder stops rotating, the sliding cross bar enters the inner side of the center of the recess, and the spherical structure at the inner end of the sliding cross bar slides at the lower end of the center of the slide groove at the same time.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Since the fixing groove is an irregular annular structure, outer columns with protruding cylindrical shapes are fixedly installed on the outer side surfaces of the lower ends of the fixing grooves. The special shape of the fixing grooves makes it easy to use when the eccentric block is rotating, so that the increase of the outer columns can increase the rotation force of the fixing grooves, and a pair of arc-shaped recesses are installed corresponding to the protruding circular ring positions in the middle section of the fixing grooves. When the eccentric block stops rotating, the force of the sudden stop will cause the rotating fixing groove in mid-air to rebound for the second time. During the rebound, the sliding cross bar will gradually slow down and repeatedly move on the inner side of the fixing groove. When it slows to a certain speed, when the sliding cross bar passes the inner side of the recess again, it will be buckled in the arc of the recess, so that the rotation of the eccentric block is stopped. Without using an external structure, the eccentric block can use inertia to pass through the special shape of the recess, slowing down the inertia of the rotation of the eccentric block, realizing the buffering function of the eccentric block that can rotate freely or stop in a balanced manner, and at the same time increasing the practicality of the eccentric block.

[0018] Since the adjustment plate is an irregular semicircular hollow structure, and a group of hollow grooves are respectively opened on the outer side surface of the lower end of the adjustment plate, the grooves are hollow grooves composed of irregular fan shapes and thread shapes, and then a group of weight blocks are installed on the central inner side of the grooves respectively, and the weight blocks can be freely added according to the actual vibration usage needs, so that the entire adjustment plate can freely increase different rotational gravity to help the eccentric block produce different vibration effects. This not only increases the rotational vibration intensity of the built-in outer rotor servo motor, improves the free adjustment function of the eccentric block to increase or decrease gravity, but also increases the practicality of the eccentric block.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention from the upper right front axis.

[0021] Figure 2 It is a schematic diagram of the structure of the present invention from the lower right front axis.

[0022] Figure 3 It is a front view schematic diagram of the present invention.

[0023] Figure 4 It is a schematic diagram of the axial structure of the fixed structure part of the present invention.

[0024] Figure 5 It is a schematic diagram of the axial structure of the fixed structure part and the adjusting structure part of the present invention.

[0025] Figure 6 It is a schematic diagram of the vertical cross-sectional structure of the regulating structure part of the present invention.

[0026] Figure 7 It is a schematic diagram of the axial structure of the load-bearing structure part of the present invention.

[0027] Figure 8 It is a schematic diagram of the axial structure of the L-shaped groove part of the present invention.

[0028] Fig. 9 It is a schematic diagram of the axial structure of the weight-increasing structure of the present invention.

[0029] Fig.10 It is a schematic diagram of the axial structure of the rotating structure part of the present invention.

[0030] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0031] 1. Fixed structure; 101. Main shaft tube; 102. Center hole slot; 103. Adjustment hole; 2. Adjustment structure; 201. Adjustment plate; 202. Groove; 203. Vertical hole; 204. Outward expansion hole; 3. Load-bearing structure; 301. Weight block; 302. Reinforcement rod; 4. L-shaped slot; 5. Weight-increasing structure; 501. Positioning plate; 502. Slide slot; 503. Sliding cross bar; 6. Rotating structure; 601. Fixed slot; 602. Outer column; 603. Clamp; 604. Notch. DETAILED DESCRIPTION

[0032] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example:

[0036] As attached Figure 1 To Attachment Fig.10 As shown:

[0037] The present invention provides an eccentric block device of a built-in outer rotor servo motor, comprising a fixed structure 1; an adjusting structure 2 is respectively inserted and installed at the outer inner end of the fixed structure 1; a load-bearing structure 3 is fixedly installed at the hollow part of the lower end of the adjusting structure 2; a pair of L-shaped grooves 4 are respectively fixedly installed at the middle upper ends of the left and right sides of the fixed structure 1 and the adjusting structure 2; a weight-increasing structure 5 is respectively connected and installed vertically and parallelly at the outer end surface of the adjusting structure 2; a rotating structure 6 is slidably installed at the middle outer side of the weight-increasing structure 5; the fixed structure 1 comprises a main shaft cylinder 101, a center hole groove 102 and an adjusting hole 103, and the main shaft cylinder 101 is similar to an I-shaped structure on the side shaped hollow cylindrical structure, and a hollow cylindrical center hole groove 102 is opened on the central inner side of the main shaft cylinder 101, and a circle of hollow adjustment holes 103 are opened in a ring on the outer end faces of the main shaft cylinder 101. The opening and special shape of the fixed structure 1 are convenient for the adjustment and fixed installation of the adjustment structure 2, and the load-bearing structure 3 and the weight-increasing structure 5 are convenient for the coordinated use of the adjustment structure 2. In addition, the rotating structure 6 is installed to neutralize the rotational inertia, which can not only increase the rotation vibration strength of the built-in outer rotor servo motor, improve the free adjustment function of the eccentric block to increase or decrease gravity, but also increase the practicality of the eccentric block.

[0038] Among them, the adjustment structure 2 includes an adjustment plate 201, a groove 202, a vertical hole 203 and an externally expanded hole 204. The adjustment plate 201 is an irregular semicircular hollow structure, and a group of hollow grooves 202 are respectively opened on the outer surface of the lower end of the adjustment plate 201, and a pair of threaded vertical holes 203 are respectively opened vertically on the left and right sides of the adjustment plate 201, and a group of externally expanded holes 204 are respectively opened horizontally on the end surface of the central outer circle of the adjustment plate 201. The opening of the groove 202 on the adjustment plate 201 is convenient for adding different rotational gravity according to actual usage requirements, helping to produce different vibration effects, and enhancing the practicality of the eccentric block.

[0039] Among them, the load-bearing structure 3 includes a weight block 301 and a reinforcement rod 302. The weight block 301 is a solid irregular quadrilateral structure similar to a fan, and a group of long strips of reinforcement rods 302 with threads are installed on the inner side of the center of the weight block 301, which improves the convenience of freely adjusting the eccentric block to add or subtract weight, and the same function is improved.

[0040] Among them, the weight-increasing structure 5 includes a positioning plate 501, a slide groove 502 and a sliding cross bar 503. A U-shaped hollow slide groove 502 is fixedly installed on the outer surface of the positioning plate 501. The sliding cross bar 503 is composed of a disc-shaped structure and a spherical structure, and the inner spherical structure of the sliding cross bar 503 is slidably buckled and installed on the hollow inner side of the slide groove 502. The sliding cross bar 503 is fixed by the positioning plate 501 and the slide groove 502, which helps the sliding cross bar 503 to slide freely on the hollow inner side of the slide groove 502 according to the rotation of the positioning plate 501. The positioning plate 501 also helps the eccentric block to be weighted again, thereby increasing the basic weight and structural stability of the eccentric block, and at the same time improving the practicality of the eccentric block.

[0041] Among them, the rotating structure 6 includes a fixed groove 601, an outer column 602, a clamping plate 603 and a recess 604. The fixed groove 601 is an irregular annular structure. The outer surface of the lower end of the fixed groove 601 is fixedly installed with a protruding cylindrical outer column 602, and the central inner end of the fixed groove 601 is respectively surrounded by a circle of arc-shaped clamping plates 603. A group of springs are installed on the inner end surface of the clamping plate 603, and the clamping plates 603 are respectively connected and installed on the central inner side of the fixed groove 601, and a pair of arc-shaped recesses 604 are installed corresponding to the protruding ring position of the middle section of the fixed groove 601. The special shape of the fixed groove 601 is suitable for use when the eccentric block is rotating. The outer column 602 is added to improve the rotation force of the fixed groove 601. The clamping plate 603 helps the sliding cross bar 503 to locate the position, and the high-speed rotation function of the eccentric block is increased, and the same function is improved.

[0042] Among them, a group of vertical holes 203 are respectively provided on the upper end faces of the L-shaped grooves 4, and the fixing screws installed vertically in the center of the vertical holes 203 respectively fix the L-shaped grooves 4 and the adjusting plate 201 to be connected, and a group of adjusting holes 103 are provided on the innermost circle end faces of the adjusting plate 201, and the fixing screws installed in the center of the adjusting holes 103 and horizontally connect the main shaft tube 101 and the adjusting plate 201 to be connected, respectively, and the adjusting plate 201 is repeatedly adjusted and installed on the hollow outer end face of the main shaft tube 101 by the adjusting holes 103 provided in a circle, and a circular arc groove is provided at the center of the adjusting plate 201, and the circular arc groove is tightly installed on the outer end face of the center hole groove 102, and the L-shaped groove 4 is used as a secondary buckle to fix the adjusting plate 201 and the positioning plate 501, thereby increasing the structural installation safety of the eccentric block, and the adjusting holes 103 provided in multiple structures are convenient for multiple adjustments of each structure, so that the eccentric block can achieve a structure that can be adjusted in time, and the effect that the eccentric block can be reasonably adjusted is achieved.

[0043] Among them, the weight block 301 on the load-bearing structure 3 is installed upwardly by a group of reinforcement rods 302, and the groove 202 is a hollow groove composed of irregular fan-shaped and threaded shapes, and the weight block 301 and the adjustment plate 201 are installed together corresponding to the groove 202 opened at the lower end, and a group of weight blocks 301 are installed correspondingly on the central inner side of the groove 202, and the sliding cross bar 503 is connected and installed on the central inner side of the fixed groove 601, and the fixed groove 601 is fixed by a disc-shaped structure installed on the outer side of the sliding cross bar 503, and the weight block 301 and the reinforcement rod 302 are fixedly installed together on the inner side of the adjustment plate 201, so as to realize the rationality of the structural fixation of the eccentric block, and the sliding cross bar 503 and the fixed groove 601 are installed into a structure that rotates together, so as to improve the efficient rotation of the eccentric block, improve the working efficiency of the eccentric block, and greatly enhance the practicality of the eccentric block.

[0044] Among them, the groove 202 on the adjustment structure 2 is used to adjust and install the weight block 301, the L-shaped groove 4 reinforces the installation of the adjustment plate 201 and the positioning plate 501, and the power rod is fixedly installed on the inner side of the center hole groove 102 and rotates the main shaft cylinder 101. The main shaft cylinder 101 drives the adjustment plate 201 and the positioning plate 501 to rotate synchronously at the same time, and the rotating positioning plate 501 rotates the sliding cross bar 503 to the hollow inner side of the sliding groove 502, and a circle of clamping plates 603 repeatedly slide and support the sliding cross bar 503, until When the outer column 602 rotates to the outermost side, when the main shaft tube 101 stops rotating, the sliding cross bar 503 enters the center inner side of the notch 604, and the spherical structure at the inner end of the sliding cross bar 503 slides at the center lower end of the slide groove 502 at the same time. When the eccentric block is installed on the servo motor for rotation, the rotation angle of the adjustment plate 201 can be adjusted by rotating on the outside of the center hole slot 102, fixed through the adjustment hole 103, and then the weight block 301 can be freely added according to the actual required vibration amplitude to provide The high eccentric block has the function of free installation, and the L-shaped groove 4 is used to fix the adjustment plate 201 and the positioning plate 501. The main shaft tube 101 drives the adjustment plate 201 to rotate, and the sliding cross bar 503 and the fixed groove 601 are installed on the outside. The sliding cross bar 503 rotates the outer column 602 to the outermost side of the adjustment plate 201 due to the outward force, increasing the rotational gravity of the eccentric block and increasing the vibration amplitude of the eccentric block. When the rotation stops, the fixed groove 601 rotating in the air is rotated due to the sudden stopping force. During the secondary rebound, the sliding cross bar 503 will gradually slow down its movement on the inner side of the fixed groove 601. When it slows down to a certain speed, when the sliding cross bar 503 passes through the inner side of the recess 604 again, it will be locked in the arc of the recess 604 to stop the rotation of the eccentric block. Without using an external structure, the eccentric block can use inertia through the special shape of the recess 604 to slow down the inertia of the rotation of the eccentric block, thereby improving the free balanced rotation or stop state of the eccentric block and increasing the practicality of the eccentric block.

[0045] The specific usage and function of this embodiment are as follows:

[0046] When in use, the opening and special shape of the fixing structure 1 facilitate the adjustment and fixing installation of the adjustment structure 2, and the load-bearing structure 3 and the weight-increasing structure 5 facilitate the coordinated use of the adjustment structure 2. In addition, the rotating structure 6 is installed to neutralize the rotational inertia. A group of vertical holes 203 are respectively opened on the upper end surface of the L-shaped groove 4. The fixing screws vertically installed in the center of the vertical hole 203 respectively fix the L-shaped groove 4 and the adjustment plate 201. The L-shaped groove 4 is used as a secondary buckle to fix the adjustment plate 201 and the positioning plate 501, and the adjustment plate 201 is centered on the innermost circle end surface. A group of adjustment holes 103 are provided on each of the adjusting holes 103. The fixing screws installed in the middle of the adjusting holes 103 and laterally connected respectively fix the main shaft cylinder 101 and the adjustment plate 201. The adjustment plate 201 is repeatedly adjusted and installed on the hollow outer end surface of the main shaft cylinder 101 by the adjustment holes 103 provided in a circle. A circular arc groove is provided at the center of the circle of the adjustment plate 201, and the circular arc groove is closely installed on the outer end surface of the center hole groove 102. The adjustment holes 103 provided in multiple structures are convenient for multiple adjustments of each structure, so that the eccentric block can achieve a structure that can be adjusted in time.

[0047] In addition, when the eccentric block is installed on the servo motor for rotation, the rotation angle of the adjustment plate 201 can be adjusted by rotating on the outside of the central hole slot 102 and fixed through the adjustment hole 103. Then, the weight block 301 can be freely added according to the actual required vibration amplitude to improve the free installation function of the eccentric block, and the L-shaped slot 4 is used to fix the adjustment plate 201 and the positioning plate 501. The main shaft tube 101 drives the adjustment plate 201 to rotate, and the sliding cross bar 503 and the fixing slot 601 are installed on the outside. The sliding cross bar 503 rotates the outer column 602 to the outermost side of the adjustment plate 201 due to the outward force of the sliding cross bar 503. , increasing the rotational gravity of the eccentric block and increasing the vibration amplitude of the eccentric block. When the rotation stops, the fixed groove 601 rotating in mid-air will rebound for the second time due to the force of the sudden stop. During the rebound, the sliding cross bar 503 will gradually slow down its movement on the inner side of the fixed groove 601. When it slows down to a certain speed, when the sliding cross bar 503 passes the inner side of the notch 604 again, it will be locked in the arc of the notch 604 to stop the rotation of the eccentric block. Without using an external structure, the eccentric block can use inertia to pass through the special shape of the notch 604 to slow down the inertia of the eccentric block's rotation and improve the free balance rotation or stop state of the eccentric block.

[0048] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An eccentric block device for a built-in outer rotor servo motor, characterized in that: The invention comprises a fixed structure (1); an adjustment structure (2) is respectively inserted and installed at the outer inner end of the fixed structure (1); a load-bearing structure (3) is fixedly installed at the hollow part of the lower end of the adjustment structure (2); a pair of L-shaped grooves (4) are respectively fixedly installed at the central upper ends of the left and right sides of the fixed structure (1) and the adjustment structure (2); a weight-increasing structure (5) is respectively connected and installed vertically and parallelly at the outer end surfaces of the adjustment structure (2); a rotating structure (6) is slidably installed at the central outer side of the weight-increasing structure (5); the fixed structure (1) comprises a main shaft cylinder (101), a center hole groove (102) and an adjustment hole (103); the main shaft cylinder (101) is a hollow cylindrical structure with a side similar to an I-shaped structure, and the main shaft cylinder A hollow cylindrical center hole groove (102) is provided on the central inner side of the (101), and a circle of hollow adjustment holes (103) are provided on the outer end surface of the main shaft cylinder (101); the adjustment structure (2) comprises an adjustment plate (201), a groove (202), a vertical hole (203) and an outer expansion hole (204); the adjustment plate (201) is an irregular semicircular hollow structure, and a group of hollow grooves (202) are provided on the outer surface of the lower end of the adjustment plate (201), and a pair of threaded vertical holes (203) are provided vertically on the left and right sides of the adjustment plate (201), and a group of outer expansion holes (204) are provided horizontally on the central outer circle end surface of the adjustment plate (201); The weight-increasing structure (5) comprises a positioning plate (501), a slide groove (502) and a sliding cross bar (503); a U-shaped hollow slide groove (502) is fixedly mounted on the outer surface of the positioning plate (501); the sliding cross bar (503) is composed of a disc-shaped structure and a spherical structure; and a spherical structure on the inner side of the sliding cross bar (503) is slidably buckled and mounted on the hollow inner side of the slide groove (502); The rotating structure (6) comprises a fixed groove (601), an outer column (602), a clamping plate (603) and a notch (604); the fixed groove (601) is an irregular annular structure; the outer column (602) protruding from a cylindrical shape is fixedly installed on the outer side surface of the lower end of the fixed groove (601); a circle of arc-shaped clamping plates (603) are installed around the central inner end of the fixed groove (601); a group of springs are installed on the inner end surface of the clamping plates (603); the clamping plates (603) are connected and installed on the central inner side of the fixed groove (601); and a pair of arc-shaped notches (604) are installed at the protruding ring position of the middle section of the fixed groove (601); The groove (202) on the adjustment structure (2) is used to adjust and install the weight block (301), and the L-shaped groove (4) reinforces the installation of the adjustment plate (201) and the positioning plate (501), and the power rod is fixedly installed on the inner side of the center hole groove (102) and rotates the main shaft cylinder (101). The main shaft cylinder (101) drives the adjustment plate (201) and the positioning plate (501) to rotate synchronously at the same time, and the rotating positioning plate (501) rotates the sliding cross bar (503) to the hollow inner side of the slide groove (502), and a circle of clamping plates (603) repeatedly slides and supports the sliding cross bar (503) until the outer column (602) rotates to the outermost side. When the main shaft cylinder (101) stops rotating, the sliding cross bar (503) enters the inner side of the center of the notch (604), and the spherical structure at the inner end of the sliding cross bar (503) slides at the lower end of the center of the slide groove (502) at the same time.

2. An eccentric block device for a built-in outer rotor servo motor as claimed in claim 1, characterized in that: The load-bearing structure (3) comprises a weight block (301) and a reinforcement rod (302); the weight block (301) is a solid irregular quadrilateral structure similar to a fan shape, and a group of long strip-shaped reinforcement rods (302) with threads are respectively installed through the inner side of the weight block (301).

3. The eccentric block device of the built-in outer rotor servo motor according to claim 1, characterized in that: A group of vertical holes (203) are respectively provided on the upper end surface of the L-shaped groove (4), and fixing screws installed vertically in the center of the vertical holes (203) respectively fix the L-shaped groove (4) and the adjustment plate (201) together, and a group of adjustment holes (103) are provided on the innermost circle end surface of the adjustment plate (201), and fixing screws installed horizontally in the center of the adjustment holes (103) respectively fix the main shaft cylinder (101) and the adjustment plate (201) together, and the adjustment plate (201) is repeatedly adjusted and installed on the hollow outer end surface of the main shaft cylinder (101) by opening a circle of adjustment holes (103), and a circular arc groove is provided at the center of the circle of the adjustment plate (201), and the circular arc groove is tightly installed on the outer end surface of the center hole groove (102).

4. The eccentric block device of the built-in outer rotor servo motor as claimed in claim 1, characterized in that: The weight blocks (301) on the load-bearing structure (3) are respectively installed by a group of reinforcing rods (302) penetrating upwards, and the grooves (202) are hollow grooves composed of irregular fan-shaped and spiral shapes, and the weight blocks (301) and the adjustment plate (201) are correspondingly installed together through the grooves (202) opened at the lower ends, and a group of weight blocks (301) are respectively installed on the central inner sides of the grooves (202), and the sliding cross bar (503) is installed through the central inner sides of the fixing grooves (601), and the fixing grooves (601) are fixed by a disc-shaped structure installed on the outer sides of the sliding cross bar (503).

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