High-reliability, low-noise and stable-operation driving mechanism and grinding instrument with same

Abstract

The utility model discloses a driving mechanism with high reliability, low noise and stable operation and a grinder with the driving mechanism, and relates to the technical field of grinders, the driving mechanism comprises a mounting frame assembly and a double-flywheel crankshaft connecting rod mechanism, and the double-flywheel crankshaft connecting rod mechanism comprises a double-flywheel crankshaft assembly and a connecting rod; the double-flywheel crankshaft assembly is rotationally connected to the mounting frame assembly and is in transmission connection with one end of the connecting rod to form a double-flywheel crankshaft connecting rod transmission structure; the driving rod is slidably connected to the mounting frame assembly in the axial direction, one end of the driving rod is in transmission connection with the connecting rod, and the other end of the driving rod is a driving connecting part; and the rotating power source is mounted on the mounting frame assembly and is in transmission connection with the double-flywheel crankshaft assembly so as to drive the double-flywheel crankshaft assembly to rotate, and then the driving rod is driven to do reciprocating motion through the connecting rod. According to the utility model, the stability of equipment in a low-speed or high-speed movement process can be improved, vibration is reduced, and noise is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to a driving mechanism with high reliability, low noise and stable operation and a grinder having the same. Background Art

[0002] The eccentric wheel plays a very important role in the grinding machine. It can provide a stable momentum balance for the grinding machine during operation, making the equipment run stably. Current grinding machines all use a single eccentric wheel structure. The connecting rod is connected to the eccentric wheel, and the circular motion of the rotating power source is converted into linear motion through the mechanical structure. However, in actual use, especially during high speed, high acceleration or large load, the upward and downward impulse and impact force are easily transmitted to the shaft and bearings of the rotating power source, causing damage to the rotating power source or excessive radial impact force on the bearing, resulting in shaft breakage.

[0003] A Chinese patent (authorization announcement number CN 104549616 B, authorization announcement date 2017.06.16) discloses a mineral grinding device, which specifically discloses that a servo motor is driven to rotate, and then the servo motor drives an eccentric wheel on a rotating shaft to rotate, so that the eccentric wheel strikes a grinding rod during rotation, causing the grinding rod to move up and down under the action of a return spring, and then the grinding rod drives a grinding plate to move up and down, so that the grinding plate grinds the mineral material. It can be seen that the technical solution uses a single eccentric wheel structure to drive the grinding rod, which is easy to cause damage to the servo motor, is not suitable for high-speed operation, and has the defects of poor stability and high vibration and noise.

[0004] Therefore, how to provide a high-reliability, low-noise, stable-operation drive mechanism and a grinder having the same, which can balance the impulse and impact force of the up and down movement through a double flywheel crankshaft connecting rod mechanism, increase the stability of the equipment during low-speed or high-speed movement, reduce vibration, and reduce noise is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, the utility model proposes a high-reliability, low-noise and stable-operation drive mechanism and a grinder having the same. The drive mechanism aims to solve the technical problems that the above-mentioned traditional grinder adopts a single eccentric wheel structure drive and cannot be applied to high-speed operation, has poor stability and high vibration noise.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a driving mechanism with high reliability, low noise and stable operation, including:

[0008] Mounting bracket assembly,

[0009] A dual flywheel crankshaft-connecting rod mechanism, comprising a dual flywheel crankshaft assembly and a connecting rod; the dual flywheel crankshaft assembly is rotatably connected to the mounting frame assembly and is transmission-connected to one end of the connecting rod to form a dual flywheel crankshaft-connecting rod transmission structure;

[0010] A driving rod, wherein the driving rod is slidably connected to the mounting frame assembly along its axial direction, one end of the driving rod is drivingly connected to the connecting rod, and the other end of the driving rod is a driving connection portion;

[0011] A rotary power source is mounted on the mounting frame assembly and is transmission-connected to the dual flywheel crankshaft assembly to drive the dual flywheel crankshaft assembly to rotate, thereby driving the drive rod to reciprocate through the connecting rod.

[0012] This utility model features a high-reliability, low-noise, and stable drive mechanism. Using a dual flywheel crankshaft assembly and connecting rod, this structure converts rotational motion into reciprocating linear motion. The dual flywheel crankshaft assembly balances the impact of the connecting rod's planar oscillating centrifugal motion, enhancing the dynamic balance of the equipment during low-speed or high-speed motion, improving the grinder's stability, and reducing vibration and noise. The mounting frame assembly supports the dual flywheel crankshaft assembly, enhancing its resistance to radial impact. The dual flywheel crankshaft assembly's own rotational inertia also enhances its resistance to impact, effectively protecting the rotary power source.

[0013] As a further improvement to the above technical solution, the dual flywheel crankshaft assembly includes a flywheel disc 1, a flywheel disc 2, and an eccentric shaft; the disc surfaces of the flywheel disc 1 and the flywheel disc 2 are arranged opposite to each other and are both rotatably connected to the mounting frame assembly; the eccentric shaft is located between the flywheel disc 1 and the flywheel disc 2, one end of the eccentric shaft is vertically connected to the flywheel disc 1, and the other end is vertically connected to the flywheel disc 2 to form a crankshaft structure; the connecting rod is arranged perpendicular to the eccentric shaft, and one end of the connecting rod is rotatably sleeved on the eccentric shaft;

[0014] One end of the driving rod is hinged to the other end of the connecting rod;

[0015] The rotating shaft of the rotating power source is connected to the flywheel disc 1 or the flywheel disc 2 to drive the flywheel disc 1 or the flywheel disc 2 to rotate.

[0016] The beneficial effects of the above technical solution are: the eccentric shaft, connecting rod, and drive rod all correspond to the flywheel discs one and two, forming a symmetrical double eccentric structure. This improves the balance performance of the equipment during low-speed or high-speed motion, improves the stability of the grinder, reduces vibration, and reduces noise. The mounting frame assembly supports the flywheel discs one and two, improving the ability to resist radial impact. The rotational inertia of the flywheel discs one and two also improves impact resistance, effectively protecting the rotating power source.

[0017] As a further improvement of the above technical solution, the mounting frame assembly includes a base plate, a mounting frame and a guide frame;

[0018] The mounting frame is mounted on the top surface of the base plate, and the rotating power source is mounted on the mounting frame; the flywheel disc 1 and the flywheel disc 2 are arranged horizontally opposite to each other and are both rotatably connected to the mounting frame;

[0019] The guide frame is mounted on the upper end of the mounting frame; the driving rod is arranged perpendicular to the bottom plate and is slidably connected to the guide frame along its axial direction.

[0020] The beneficial effect of the above technical solution is that the guide frame is arranged at the upper end of the mounting frame and the driving rod is perpendicular to the bottom plate, so that the impact force of the up and down reciprocating vibration of the driving rod can be borne by the bottom plate, which can increase the stability of the grinding machine operation.

[0021] As a further improvement of the above technical solution, it also includes a counterweight plate assembly; the counterweight plate assembly includes a counterweight plate and an elastic support rod assembly;

[0022] A lower end of the elastic support rod assembly is vertically fixed to the top surface of the base plate; the counterweight plate is parallel to the base plate and is installed on an upper end of the elastic support rod assembly.

[0023] The beneficial effect of the above technical solution is that the counterweight plate is installed above the base plate through the elastic support rod assembly, which can further absorb the vibration energy of the grinder during operation, suppress vibration, improve operation stability and reduce noise.

[0024] As a further improvement of the above technical solution, the mounting frame includes a second elastic support rod assembly, a mounting plate, a driver support and a flywheel disc mounting seat;

[0025] The lower end of the second elastic support rod assembly is vertically mounted on the top surface of the base plate, and the mounting plate is parallel to the base plate and mounted on the upper end of the second elastic support rod assembly; the driver support and the flywheel disc mounting seat are arranged horizontally relative to each other and are both fixed to the bottom surface of the mounting plate; the flywheel disc 1 and the flywheel disc 2 are coaxially arranged and are both located between the driver support and the flywheel disc mounting seat; the rotating power source is mounted on the driver support, and its rotating shaft is coaxially connected to the flywheel disc 1; the flywheel disc 2 is rotatably connected to the flywheel disc mounting seat;

[0026] The guide frame is mounted on the top surface of the mounting plate; an avoidance through hole is opened on the mounting plate at a position corresponding to the driving rod.

[0027] The beneficial effects of the above technical solution are as follows: the mounting plate, mounted above the base plate via the second elastic support rod assembly, further cushions vibrations of the dual flywheel crankshaft-connecting rod mechanism and the rotary power source, suppressing jitter. The second elastic support rod assembly also cushions the grinding impact force transmitted by the drive rod, imparting a certain degree of flexibility to the grinding process, improving operational stability, and reducing noise. The avoidance through-hole is used to avoid the up and down movement of the drive rod and connecting rod.

[0028] As a further improvement of the above technical solution, the elastic support rod assembly 2 includes a fixed support rod and an elastic member; the lower end of the fixed support rod is vertically fixed to the top surface of the base plate, the lower end of the elastic member is connected to the upper end of the fixed support rod, and the upper end of the elastic member is installed on the bottom surface of the mounting plate.

[0029] The beneficial effect of the above technical solution is that the elastic member is arranged at the upper end of the fixed support rod, close to the mounting plate, which can reduce the swing amplitude of the mounting plate and the guide frame and improve the operation stability.

[0030] As a further improvement of the above technical solution, the guide frame includes a guide plate, a support rod assembly and a guide sleeve assembly; the lower end of the support rod assembly is vertically fixed to the top surface of the mounting plate; the guide plate is parallel to the mounting plate and is fixed to the upper end of the support rod assembly; a mounting through hole is provided on the top surface of the guide plate, and the upper part of the guide sleeve assembly is fixedly installed in the mounting through hole, and the upper end of the drive rod slides through the guide hole of the guide sleeve assembly and extends to the upper end of the guide plate.

[0031] The beneficial effect of the above technical solution is that the guide hole of the guide sleeve assembly slides and guides the up and down reciprocating motion of the driving rod, thereby improving the operating stability of the driving rod.

[0032] As a further improvement of the above technical solution, the outer peripheral wall of the guide sleeve assembly is provided with a lubrication through hole connected to the guide hole, and an oiling nozzle for injecting lubricating oil into the guide hole is installed in the lubrication through hole.

[0033] The beneficial effect of the above technical solution is that lubricating oil can be injected into the guide hole through the oiling nozzle, thereby further improving the operating stability of the driving rod and reducing noise.

[0034] As a further improvement of the above technical solution, it also includes a driver and a driver mounting box; a support leg is installed at the bottom end of the base plate; a driver avoidance through-hole is opened on the top surface of the base plate corresponding to the side of the mounting frame; the driver mounting box is installed at the bottom end of the base plate and corresponds to the driver avoidance through-hole; the lower part of the driver passes through the driver avoidance through-hole and is installed in the driver mounting box.

[0035] The beneficial effect of the above technical solution is that the driver is installed in a sunken manner, which lowers the center of gravity of the grinder, thereby suppressing vibration and improving the stability of equipment operation.

[0036] The utility model also provides a grinding machine, comprising a grinding part and a driving mechanism with high reliability, low noise and stable operation, wherein the driving connection part is transmission-connected to the grinding part.

[0037] It can be seen from the above technical solutions that, compared with the prior art, the present invention provides a driving mechanism with high reliability, low noise and stable operation and a grinding machine having the same, which has the following advantages and beneficial effects:

[0038] 1. The drive mechanism of the utility model is composed of a combined crankshaft-connecting rod mechanism through horizontally arranged flywheel discs 1 and 2, and an eccentric shaft and a connecting rod arranged therebetween. The flywheel discs 1 and 2 and the eccentric shaft constitute a double eccentric wheel structure. The double eccentric wheels and the combined crankshaft-connecting rod mechanism balance the impulse and impact force of the up and down movement during the grinding process to avoid impacting the rotating power source. At the same time, the left-right symmetrical double eccentric wheel structure in the drive mechanism can also increase the dynamic balance of the equipment during high-speed movement, improve the operating stability of the grinder, reduce vibration, and reduce noise.

[0039] 2. The mounting frame and guide frame of the driving mechanism of the utility model are connected to the base plate through the elastic support rod assembly 2, realizing elastic buffering; by setting the counterweight plate, the overall deadweight of the structure is increased and the operation stability is improved, and the counterweight plate is connected to the base plate through the elastic support rod assembly 1, and the counterweight plate can buffer and suppress vibration, playing the role of a stabilizing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0041] Figure 1 A three-dimensional schematic diagram of the overall structure of the driving mechanism of the utility model with high reliability, low noise and stable operation;

[0042] Figure 2 A three-dimensional schematic diagram of the driving mechanism of the utility model showing high reliability, low noise and stable operation from another perspective;

[0043] Figure 3 A schematic cross-sectional view of a double flywheel crankshaft connecting rod mechanism and a guide sleeve assembly in a high-reliability, low-noise, and stable-operation drive mechanism of the utility model;

[0044] Figure 4 A schematic diagram of the three-dimensional structure of the double flywheel crankshaft connecting rod mechanism in the high-reliability, low-noise and stable-operation drive mechanism of the utility model;

[0045] Figure 5 A schematic diagram of the eccentric shaft and connecting rod structure in the driving mechanism of the utility model with high reliability, low noise and stable operation.

[0046] In the figure: 1. Mounting frame assembly; 11. Bottom plate; 111. Support leg; 112. Driver avoidance hole; 12. Mounting frame; 121. Elastic support rod assembly II; 1211. Fixed support rod; 1212. Elastic member; 122. Mounting plate; 1221. Avoidance hole; 123. Driver support; 124. Flywheel mounting seat; 13. Guide frame; 131. Guide plate; 1311. Mounting hole; 132. Support rod assembly; 133. Guide sleeve assembly; 1331. Guide sleeve; 1331A. Guide hole; 1332. Mounting sleeve; 134. Oiling nozzle; 2. Double flywheel crankshaft connecting rod mechanism; 21. Flywheel disc one; 22. Flywheel disc two; 221. Rotating shaft; 23. Eccentric shaft; 24. Connecting rod; 3. Drive rod; 4. Rotating power source; 5. Counterweight plate assembly; 51. Counterweight plate; 52. Elastic support rod assembly one; 6. Driver; 7. Driver mounting box. DETAILED DESCRIPTION

[0047] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0048] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0050] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0051] According to the embodiment of the present invention, a driving mechanism with high reliability, low noise and stable operation is provided. Figures 1 to 5 As shown, it includes: a mounting frame assembly 1, a double flywheel crankshaft connecting rod mechanism 2, a drive rod 3 and a rotation power source 4,

[0052] The dual flywheel crankshaft connecting rod mechanism 2 includes a dual flywheel crankshaft assembly and a connecting rod 24; the dual flywheel crankshaft assembly is rotatably connected to the mounting frame assembly 1 and is transmission-connected to one end of the connecting rod 24 to form a dual flywheel crankshaft connecting rod transmission structure;

[0053] A driving rod 3 is slidably connected to the mounting frame assembly 1 along its axial direction, with one end of the driving rod 3 being connected to the connecting rod 24 and the other end being a driving connection portion;

[0054] The rotary power source 4 is mounted on the mounting frame assembly 1 and is in transmission connection with the double flywheel crankshaft assembly to drive the double flywheel crankshaft assembly to rotate, thereby driving the drive rod 3 to reciprocate through the connecting rod 24.

[0055] Specifically, the dual flywheel crankshaft assembly includes a flywheel disc 1 21, a flywheel disc 22, and an eccentric shaft 23. The flywheel disc 1 21 and the flywheel disc 2 22 are arranged relative to each other and are both rotatably connected to the mounting frame assembly 1. The eccentric shaft 23 is located between the flywheel disc 1 21 and the flywheel disc 2 22. One end of the eccentric shaft 23 is perpendicularly connected to the flywheel disc 1 21, and the other end is perpendicularly connected to the flywheel disc 2 22 to form a crankshaft structure. The connecting rod 24 is arranged perpendicular to the eccentric shaft 23, and one end of the connecting rod 24 is rotatably sleeved on the eccentric shaft 23.

[0056] One end of the driving rod 3 is hinged to the other end of the connecting rod 24; the rotating shaft of the rotating power source 4 is connected to the flywheel disc 1 21 or the flywheel disc 2 22 to drive it to rotate.

[0057] This embodiment provides a high-reliability, low-noise, and stable drive mechanism. A dual-flywheel crankshaft connecting rod mechanism is constructed using flywheel disc 1 21, flywheel disc 2 22, eccentric shaft 23, and connecting rod 24. The eccentric shaft 23, connecting rod 24, and drive rod 3 all correspond to flywheel disc 1 21 and flywheel disc 2 22, forming a symmetrical dual-eccentric wheel structure. This can increase the dynamic balance of the equipment during high-speed motion, improve the stability of the grinder, reduce vibration, and lower noise. The mounting frame assembly 1 supports flywheel disc 1 21 and flywheel disc 2 22, improving resistance to radial impact. The rotational inertia of flywheel disc 1 21 and flywheel disc 2 22 also improves resistance to impact, effectively protecting the rotating power source.

[0058] Specifically, the rotational power source 4 is a device capable of outputting a rotational driving force, such as a drive motor, a hydraulic motor, etc. The flywheel disc 1 21 and the flywheel disc 2 22 are any of a circular, elliptical, heart-shaped, and fan-shaped shapes.

[0059] In some embodiments, the mounting frame assembly 1 may include a base plate 11 , a mounting frame 12 , and a guide frame 13 ;

[0060] The mounting frame 12 is mounted on the top surface of the base plate 11, and the rotary power source 4 is mounted on the mounting frame 12; the flywheel disc 1 21 and the flywheel disc 2 22 are arranged horizontally relative to each other and are both rotatably connected to the mounting frame 12;

[0061] The guide frame 13 is fixedly mounted on the upper end of the mounting frame 12 ; the driving rod 3 is arranged perpendicular to the base plate 11 and is slidably connected to the guide frame 13 along its axial direction.

[0062] The guide frame 13 is arranged at the upper end of the mounting frame 12 and the driving rod 3 is perpendicular to the bottom plate 11, so that the impact force of the up and down reciprocating vibration of the driving rod 3 can be borne by the bottom plate 11, which can increase the stability of the grinding machine operation.

[0063] In some embodiments, a counterweight plate assembly 5 may also be included; the counterweight plate assembly 5 includes a counterweight plate 51 and an elastic support rod assembly 52;

[0064] The lower end of the elastic support rod assembly 52 is vertically fixed to the top surface of the base plate 11; the counterweight plate 51 is parallel to the base plate 11 and fixedly mounted on the upper end of the elastic support rod assembly 52.

[0065] The counterweight plate 51 is installed above the base plate 11 through an elastic support rod assembly 52, which can further absorb the vibration energy of the grinder during operation, suppress vibration, improve operation stability and reduce noise.

[0066] In some embodiments, the mounting frame 12 may include a second elastic support rod assembly 121 , a mounting plate 122 , a driver support 123 , and a flywheel disc mounting seat 124 ;

[0067] The lower end of the second elastic support rod assembly 121 is vertically mounted on the top surface of the base plate 11, and the mounting plate 122 is parallel to the base plate 11 and mounted on the upper end of the second elastic support rod assembly 121; the driver support 123 and the flywheel disc mounting seat 124 are arranged horizontally relative to each other and are both fixed to the bottom surface of the mounting plate 122; the flywheel disc 1 21 and the flywheel disc 2 22 are coaxially arranged and are both located between the driver support 123 and the flywheel disc mounting seat 124; the rotary power source 4 is mounted on the driver support 123, and the center of the flywheel disc 1 21 has an axial hole, and the rotating shaft of the rotary power source 4 is adapted to be vertically inserted into the axial hole of the flywheel disc 1 21 to connect the flywheel disc 1 21 with a coaxial transmission; the flywheel disc 2 22 is rotatably connected to the flywheel disc mounting seat 124 through a rotating shaft 221 perpendicular to its disc surface;

[0068] Flywheel disc 1 21, flywheel disc 22, and the rotating shaft of the rotating power source 4 are arranged coaxially; one end of the eccentric shaft 23 is vertically fixedly connected to flywheel disc 1 21, and the other end is vertically fixedly connected to flywheel disc 2 22; the eccentric shaft 23 corresponds to one side of the rotating shaft of the rotating power source 4 in the radial direction to form a crankshaft structure; one end of the connecting rod 24 is rotatably sleeved on the eccentric shaft 23 through a bearing;

[0069] The guide frame 13 is fixedly mounted on the top surface of the mounting plate 122 ; an avoidance through hole 1221 is opened on the mounting plate 122 at a position corresponding to the driving rod 3 .

[0070] Mounting plate 122, mounted above base plate 11 via elastic support rod assembly 2 121, further cushions vibrations of dual flywheel crankshaft-connecting rod mechanism 2 and rotary power source 4, suppressing jitter. Elastic support rod assembly 121 121 also cushions grinding impacts transmitted by drive rod 3, imparting a degree of flexibility to the grinding process, improving operational stability, and reducing noise. Avoidance holes 1221 are used to prevent vertical movement of drive rod 3 and connecting rod 24.

[0071] In some embodiments, the elastic support rod assembly 2 121 may include a fixed support rod 1211 and an elastic member 1212; the lower end of the fixed support rod 1211 is vertically fixed to the top surface of the base plate 11, the lower end of the elastic member 1212 is fixedly connected to the upper end of the fixed support rod 1211, and the upper end of the elastic member 1212 is fixedly installed on the bottom surface of the mounting plate 122 by bolts.

[0072] The elastic member 1212 is arranged at the upper end of the fixed support rod 1211 and is arranged close to the mounting plate 122, which can reduce the swing amplitude of the mounting plate 122 and the guide frame 13 and improve the operation stability.

[0073] Specifically, the counterweight plate 51 is located above the mounting plate 122; a notch is provided on the counterweight plate 51 to allow for the guide frame 13 to pass through. The elastic support rod assembly 1 52 has the same structure as the elastic support rod assembly 2 121; the elastic member 1212 is a spring.

[0074] Specifically, there are four elastic support rod components 1 52 and four elastic support rod components 2 121 .

[0075] In some embodiments, the guide frame 13 may include a guide plate 131, a support rod assembly 132 and a guide sleeve assembly 133; the lower end of the support rod assembly 132 is vertically fixed to the top surface of the mounting plate 122; the guide plate 131 is parallel to the mounting plate 122 and is fixed to the upper end of the support rod assembly 132; a mounting through hole 1311 is opened on the top surface of the guide plate 131, and the upper part of the guide sleeve assembly 133 is fixedly installed in the mounting through hole 1311, and the upper end of the drive rod 3 slides through the guide hole 1331A of the guide sleeve assembly 133 and extends to the upper end of the guide plate 131.

[0076] The guide hole 1331A of the guide sleeve assembly 133 provides sliding guidance for the up and down reciprocating motion of the driving rod 3 , thereby improving the operational stability of the driving rod 3 .

[0077] Specifically, there are three support rod assemblies 132 .

[0078] In some embodiments, a lubrication through hole connected to the guide hole 1331A is provided on the outer peripheral wall of the guide sleeve assembly 133, and an oiling nozzle 134 is installed in the lubrication through hole to inject lubricating oil into the guide hole 1331A.

[0079] Lubricating oil can be injected into the guide hole 1331A through the oiling nozzle 134, thereby further improving the operating stability of the driving rod 3 and reducing noise.

[0080] Specifically, the guide sleeve assembly 133 may include a guide sleeve 1331 and an installation sleeve 1332; the installation sleeve 1332 is fixedly installed in the installation through hole 1311; the guide sleeve 1331 is installed in the sleeve hole of the installation sleeve 1332; the drive rod 3 slides through the guide hole 1331A of the guide sleeve 1331; the setting of the installation sleeve 1332 can improve the installation accuracy of the guide sleeve 1331.

[0081] Specifically, lubrication holes are opened at corresponding positions on the outer walls of the guide sleeve 1331 and the mounting sleeve 1332, and one end of the oiling nozzle 134 is inserted into and passes through the lubrication holes of the mounting sleeve 1332 and the guide sleeve 1331 and the corresponding inner cavity of the guide hole 1331A in turn to add lubricating oil to the driving rod 3 passing through the guide hole 1331A.

[0082] Specifically, the other end of the oiling nozzle 134 can be connected to the oiling pot through an oil pipe, and the oiling pot can add lubricating oil to the driving rod 3 through the oiling nozzle 134 .

[0083] In some embodiments, a driver 6 and a driver mounting box 7 may also be included; a support leg 111 is fixedly installed at the bottom end of the base plate 11; a driver avoidance through-hole 112 is opened on the top surface of the base plate 11 corresponding to the side of the mounting frame 12; the driver mounting box 7 is detachably mounted on the bottom end of the base plate 11 by screws and corresponds to the driver avoidance through-hole 112; the lower part of the driver 6 passes through the driver avoidance through-hole 112 and is installed in the driver mounting box.

[0084] The rotary power source 4 is a driving motor, and the driver 6 is a motor driver; the driver 6 is electrically connected to the rotary power source 4 to control the working state of the rotary power source 4; the driver 6 is installed in a sunken manner, and its center of gravity is lowered, thereby also lowering the center of gravity of the grinder, thereby suppressing vibration and improving the stability of the equipment operation.

[0085] Another embodiment of the present invention provides a grinding machine, comprising a grinding unit and a driving mechanism with high reliability, low noise and stable operation, wherein a driving connection portion of a driving rod 3 is connected to the grinding unit to transmit grinding power. The grinding unit can be a grinding head or a grinding rod, etc.

[0086] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0087] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. High reliability, low noise and stable operation driving mechanism, characterized by: include: Mounting bracket assembly (1), A double flywheel crankshaft connecting rod mechanism (2), the double flywheel crankshaft connecting rod mechanism (2) comprising a double flywheel crankshaft assembly and a connecting rod (24); the double flywheel crankshaft assembly is rotatably connected to the mounting frame assembly (1) and is transmission-connected to one end of the connecting rod (24) to form a double flywheel crankshaft connecting rod transmission structure; A driving rod (3), the driving rod (3) being slidably connected to the mounting frame assembly (1) along its axial direction, with one end thereof being transmission-connected to the connecting rod (24), and the other end thereof being a driving connection portion; A rotary power source (4) is mounted on the mounting frame assembly (1) and is transmission-connected to the dual flywheel crankshaft assembly to drive the dual flywheel crankshaft assembly to rotate, thereby driving the drive rod (3) to reciprocate through the connecting rod (24).

2. The driving mechanism with high reliability, low noise and stable operation according to claim 1, characterized in that: The double flywheel crankshaft assembly includes a flywheel disc 1 (21), a flywheel disc 2 (22) and an eccentric shaft (23); the disc surfaces of the flywheel disc 1 (21) and the flywheel disc 2 (22) are arranged relative to each other and are both rotatably connected to the mounting frame assembly (1); the eccentric shaft (23) is located between the flywheel disc 1 (21) and the flywheel disc 2 (22), one end of the eccentric shaft (23) is vertically connected to the flywheel disc 1 (21), and the other end is vertically connected to the flywheel disc 2 (22) to form a crankshaft structure; the connecting rod (24) is arranged vertically to the eccentric shaft (23), and one end thereof is rotatably sleeved on the eccentric shaft (23); One end of the driving rod (3) is hinged to the other end of the connecting rod (24); The rotating shaft of the rotating power source (4) is connected to the flywheel disc 1 (21) or the flywheel disc 2 (22) to drive the same to rotate.

3. The driving mechanism with high reliability, low noise and stable operation according to claim 2, characterized in that: The mounting frame assembly (1) comprises a base plate (11), a mounting frame (12) and a guide frame (13); The mounting frame (12) is mounted on the top surface of the base plate (11), and the rotating power source (4) is mounted on the mounting frame (12); the flywheel disc 1 (21) and the flywheel disc 2 (22) are arranged horizontally relative to each other and are both rotatably connected to the mounting frame (12); The guide frame (13) is mounted on the upper end of the mounting frame (12); the driving rod (3) is arranged perpendicular to the base plate (11) and is slidably connected to the guide frame (13) along its axial direction.

4. The driving mechanism with high reliability, low noise and stable operation according to claim 3, characterized in that: It also includes a counterweight plate assembly (5); the counterweight plate assembly (5) includes a counterweight plate (51) and an elastic support rod assembly (52); The lower end of the elastic support rod assembly (52) is vertically fixed to the top surface of the base plate (11); the counterweight plate (51) is parallel to the base plate (11) and is installed on the upper end of the elastic support rod assembly (52).

5. The driving mechanism with high reliability, low noise and stable operation according to claim 3, characterized in that: The mounting frame (12) includes a second elastic support rod assembly (121), a mounting plate (122), a driver support (123) and a flywheel disc mounting seat (124); The lower end of the second elastic support rod assembly (121) is vertically mounted on the top surface of the base plate (11), and the mounting plate (122) is parallel to the base plate (11) and mounted on the upper end of the second elastic support rod assembly (121); the driver support (123) and the flywheel disc mounting seat (124) are arranged horizontally relative to each other and are both fixed to the bottom surface of the mounting plate (122); the flywheel disc 1 (21) and the flywheel disc 2 (22) are coaxially arranged and are both located between the driver support (123) and the flywheel disc mounting seat (124); the rotating power source (4) is mounted on the driver support (123), and its rotating shaft is coaxially connected to the flywheel disc 1 (21); the flywheel disc 2 (22) is rotatably connected to the flywheel disc mounting seat (124); The guide frame (13) is mounted on the top surface of the mounting plate (122); an avoidance through hole (1221) is provided on the mounting plate (122) at a position corresponding to the driving rod (3).

6. The driving mechanism with high reliability, low noise and stable operation according to claim 5, characterized in that: The second elastic support rod assembly (121) comprises a fixed support rod (1211) and an elastic member (1212); the lower end of the fixed support rod (1211) is vertically fixed to the top surface of the base plate (11), the lower end of the elastic member (1212) is connected to the upper end of the fixed support rod (1211), and the upper end of the elastic member (1212) is mounted on the bottom surface of the mounting plate (122).

7. The driving mechanism with high reliability, low noise and stable operation according to claim 5, characterized in that: The guide frame (13) comprises a guide plate (131), a support rod assembly (132) and a guide sleeve assembly (133); the lower end of the support rod assembly (132) is vertically fixed to the top surface of the mounting plate (122); the guide plate (131) is parallel to the mounting plate (122) and is fixed to the upper end of the support rod assembly (132); a mounting through hole (1311) is provided on the top surface of the guide plate (131), the upper part of the guide sleeve assembly (133) is fixedly installed in the mounting through hole (1311), and the upper end of the drive rod (3) slides through the guide hole (1331A) of the guide sleeve assembly (133) and extends to the upper end of the guide plate (131).

8. The driving mechanism with high reliability, low noise and stable operation according to claim 7, characterized in that: The outer peripheral wall of the guide sleeve assembly (133) is provided with a lubricating through hole connected to the guide hole (1331A), and an oiling nozzle (134) for injecting lubricating oil into the guide hole (1331A) is installed in the lubricating through hole.

9. The driving mechanism with high reliability, low noise and stable operation according to claim 3, characterized in that: The invention also includes a driver (6) and a driver installation box (7); a support leg (111) is installed at the bottom end of the base plate (11); a driver avoidance through hole (112) is opened on the top surface of the base plate (11) corresponding to the side of the installation frame (12); the driver installation box (7) is installed at the bottom end of the base plate (11) and corresponds to the driver avoidance through hole (112); the lower part of the driver (6) passes through the driver avoidance through hole (112) and is installed in the driver installation box (7).

10. A grinding machine, characterized in that: It comprises a grinding part and a driving mechanism with high reliability, low noise and stable operation as claimed in any one of claims 1 to 9, wherein the driving connection part is transmission-connected to the grinding part.

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