A grinder with double damping structure
By designing a dual damping structure and utilizing a combination of springs and dampers, the problems of poor damping and insufficient stability in existing grinding machines have been solved, resulting in better vibration buffering and operational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING XUXINSHENGKE INSTR EQUIP CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-08-04
AI Technical Summary
Existing grinding machines have weak vibration damping and insufficient operational stability, especially during acceleration and deceleration, which causes severe vibrations and poses a safety hazard.
It adopts a dual damping structure, which includes a combination of multiple springs and dampers. The opposing impact force of the springs and the vibration absorption of the dampers, combined with the use of high-strength materials, enhance the damping effect and stability.
It effectively buffers and absorbs vibration, improves the operational stability of the device, and reduces the safety hazards of vibration to the device and operators.
Smart Images
Figure CN224586031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sample grinding and crushing technology, specifically a grinder with a dual shock absorption structure. Background Technology
[0002] Before conducting experiments such as nucleic acid extraction, protein extraction, and component analysis, samples need to be ground and crushed. However, there are many instruments on the market for grinding and crushing samples, but current grinders use a single shock absorption system. When the machine moves at high speed, especially during acceleration and deceleration, it will generate severe vibrations, which will damage the instrument itself and pose a safety hazard to the operator. Therefore, a grinder with a dual shock absorption structure is needed.
[0003] The prior art patent document CN212775345U provides: a dual-vibration-damping grinding instrument, including a vibration-damping platform, which includes a chassis, a support, and vibration-damping springs. The support is fixed to the chassis by the vibration-damping springs. A power unit includes a motor and an eccentric cylinder. The motor is fixed inside the support, and its output shaft is vertically arranged. The eccentric cylinder is fixed to the output shaft of the motor and located above the support. A control circuit board is electrically connected to the motor and fixed to one side of the motor housing. Two or more vibration-damping springs are symmetrically arranged on the support. Bearings are fixed to the eccentric cylinders and are covered with bearing sleeves, which are connected to the vibration-damping springs on the support. This invention is compact and lightweight, has good vibration damping effect, high stability, and is convenient for staff to carry and test samples, resulting in high efficiency.
[0004] Although the device has many beneficial effects, it still has the following problems: the device only uses springs to dampen the support during use, which results in a weak damping effect. Secondly, the shaking of the placement surface will increase during the operation of the device, and the stability of the device during operation is weak. Utility Model Content
[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.
[0006] 1. Technical problems to be solved: To address the aforementioned issues of weak shock absorption and poor stability during device operation, this utility model is proposed.
[0007] Therefore, the purpose of this invention is to provide a grinding instrument with a dual shock absorption structure, which aims to solve the problem of weak shock absorption effect as much as possible and to enhance the stability of the device during operation.
[0008] 2. Technical Solution: To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A grinding instrument with a dual shock absorption structure includes a fixed base. A stop block is bolted to the top of the fixed base. A slide rod is bolted to one side of the stop block. A slider is fitted onto the outer circumference of the slide rod. A third spring is welded to one side of the slider, and a second spring is welded to one side of the stop block. A groove is formed at the top of the slider. A support bar is connected to the inner wall of the groove via a damping bearing. A fixed block is connected to the top of the support bar via a damping bearing. The top of the fixed block is bolted to the fixed base. A circular plate is bolted to the top of the fixed base. A first spring is welded to the top of the circular plate, and a damper is fitted onto the inner wall of the spring. The circular plate's design facilitates better fixation of the first spring and the first damper; the slide rod's design facilitates better balance during slider movement; and the stop block's design facilitates better fixation of the slide rod.
[0009] As a preferred embodiment of the grinding instrument with a dual shock absorption structure of this utility model, the bottom of the fixed base is connected to the base plate by bolts, the bottom of the base plate is welded with a spring four, the inner circumference of the spring four is sleeved with a damper four, and one end of the base plate is connected to the base by bolts.
[0010] As a preferred embodiment of the grinding instrument with a dual shock absorption structure of this utility model, the bottom of the fixed base is connected to a motor by bolts, the output shaft of the motor is inserted into an eccentric cylinder, a circuit board is fixedly mounted on the bottom of the fixed base, the circuit board is electrically connected to the motor, a bearing sleeve is provided on the top of the eccentric cylinder, a sample plate is provided on the top of the bearing sleeve, a groove is opened on the surface of the sample plate, a threaded rod is provided on the top of the sample plate, and a grinding tube cap is threadedly connected to the threaded rod.
[0011] As a preferred embodiment of the grinding instrument with a dual shock absorption structure of this utility model, there are multiple slide rods, sliders and support bars, and the slide rods, sliders and support bars are all symmetrically distributed.
[0012] As a preferred embodiment of the grinding instrument with a dual shock absorption structure of this utility model, there are multiple springs, dampers, and circular plates, and the springs, dampers, and circular plates are arranged in a ring shape.
[0013] As a preferred embodiment of the grinding instrument with a dual damping structure of this utility model, there are multiple springs and dampers, and the springs and dampers are distributed linearly and equidistantly.
[0014] As a preferred embodiment of the grinding instrument with a dual shock absorption structure of this utility model, the sample disk, the bearing sleeve and the eccentric cylinder are all made of high-strength aluminum alloy.
[0015] 3. Beneficial effects: Compared with the prior art, the beneficial effects of this utility model are: This type of grinding machine with a dual shock absorption structure will generate a certain degree of vibration during the operation of the device, which will change the angle of the support bar. At the same time, the opposing impact elastic force between spring two and spring three can effectively buffer and reduce the vibration during the operation of the device. Meanwhile, the structural design of spring one and damper one can effectively maintain the shock absorption effect of the device during operation. This grinding instrument with a dual shock absorption structure effectively absorbs vibrations generated during operation through the design of spring one and damper one. At the same time, the design of spring four and damper four reduces the possibility of vibration affecting the placement surface, thereby better maintaining the stability of the device during operation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of a grinding instrument with a dual shock absorption structure according to the present invention; Figure 2 This is a schematic diagram of the block structure of a grinding instrument with a dual shock absorption structure according to the present invention. Figure 3 This is a schematic diagram of the spring structure of a grinding instrument with a dual shock absorption structure according to the present invention. Figure 4 This is an exploded view of the base structure of a grinding instrument with a dual shock absorption structure according to this utility model; Figure 5 This is an isometric schematic diagram of the fixed base structure of a grinding instrument with a dual shock absorption structure according to the present invention.
[0017] The following are the labels in the diagram: 1. Base; 2. Fixing seat; 3. Motor; 4. Circuit board; 5. Eccentric cylinder; 6. Bearing sleeve; 7. Sample tray; 8. Groove; 9. Threaded rod; 10. Grinding tube cap; 11. Circular plate; 12. Spring 1; 13. Damper 1; 14. Spring 2; 15. Sliding block; 16. Slide groove; 17. Support bar; 18. Slide rod; 19. Spring 3; 20. Fixing block; 21. Block; 22. Spring 4; 23. Damper 4; 24. Base plate. Detailed Implementation
[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0019] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0020] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0021] The term "connection method" should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.
[0023] This utility model provides an overall structural diagram of an embodiment of a grinding instrument with a dual shock absorption structure, including: Please see Figures 1-5 This utility model provides a technical solution: A grinding instrument with a dual shock absorption structure includes a fixed base 2. A stop block 21 is bolted to the top of the fixed base 2. A slide rod 18 is bolted to one side of the stop block 21. A slider 15 is fitted onto the outer circumference of the slide rod 18. A spring 19 is welded to one side of the slider 15, and a spring 14 is welded to one side of the stop block 21. A groove 16 is formed at the top of the slider 15. A support bar 17 is connected to the inner wall of the groove 16 via a damping bearing. A fixed block 20 is connected to the top of the support bar 17 via a damping bearing. The top of the fixed block 20 is bolted to the fixed base 2. The device is connected to a circular plate 11 by bolts. A spring 12 is welded to the top of the circular plate 11. A damper 13 is sleeved on the inner wall of the spring. During the operation of the device, a certain degree of vibration will be generated, which will change the angle of the support bar 17. At the same time, the opposing impact elastic force between the spring 14 and the spring 19 is used to better buffer and reduce the vibration during the operation of the device. The structural design of the spring 12 and the damper 13 is also used to better maintain the vibration reduction effect of the device during operation. In addition, the damper 13 is a hydraulic damper.
[0024] It is worth noting that, in order to better maintain the stability of the device during operation, the bottom of the fixed base 2 is connected to the base plate 24 by bolts. A spring 22 is welded to the bottom of the base plate 24, and a damper 23 is sleeved on the inner circumference of the spring 22. One end of the base plate 24 is connected to the base 1 by bolts. The structural design of the spring 22 and the damper 23 reduces the possibility of the placement surface being affected by vibration waves, thereby making it easier to maintain the stability of the device during operation. In addition, the damper 23 is a rubber damper.
[0025] Next, to facilitate better grinding of the material, specifically, a motor 3 is bolted to the bottom of the fixed base 2, and an eccentric cylinder 5 is inserted into the output shaft of the motor 3. A circuit board 4 is fixed to the bottom of the fixed base 2, and the circuit board 4 is electrically connected to the motor 3. A bearing sleeve 6 is provided on the top of the eccentric cylinder 5, and a sample plate 7 is provided on the top of the bearing sleeve 6. A groove 8 is opened on the surface of the sample plate 7, and a threaded rod 9 is provided on the top of the sample plate 7. The threaded rod 9 is threadedly connected to the grinding tube cap 10. The circuit board 4 drives the motor 3 to rotate the eccentric cylinder 5, so that the bearing sleeve 6 can drive the sample on the inner wall of the groove 8 of the sample plate 7 to grind, thereby facilitating better grinding of the material.
[0026] Meanwhile, in order to cooperate with the damper 13 to achieve a better shock absorption and buffering effect on the device, there are multiple slide rods 18, sliders 15 and support bars 17. The slide rods 18, sliders 15 and support bars 17 are all symmetrically distributed. The multiple slide rods 18, sliders 15 and support bars 17 designed in a symmetrical manner are convenient to cooperate with the damper 13 to achieve a better shock absorption and buffering effect on the device.
[0027] Furthermore, in order to facilitate a more uniform vibration reduction effect on the device, there are multiple springs 12, dampers 13, and circular plates 11, which are arranged in a ring shape. This ring-shaped structural design facilitates a more uniform vibration reduction effect on the device.
[0028] It is worth noting that, in order to maintain the stability of the device more evenly, there are multiple springs 22 and dampers 23. The springs 22 and dampers 23 are arranged in a linear equidistant pattern. This structural design of the springs 22 and dampers 23 in a linear equidistant pattern facilitates the more even maintenance of the device's stability during operation.
[0029] Finally, in order to better maintain the stability of the device during operation, specifically, the sample tray 7, bearing sleeve and eccentric cylinder 5 are all made of high-strength aluminum alloy. Through the structural design of aluminum alloy, the rigidity of the device is increased, which facilitates better maintenance of the stability of the device during operation.
[0030] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.
[0031] Combination Figures 1-5 The grinding instrument with a dual shock absorption structure described in this embodiment is used as follows: 1: When using this type of grinder with a dual shock absorption structure, the operator moves the base 1 to a suitable position, puts the material tube to be ground into the groove 8 opened on the surface of the sample tray 7, and uses the threaded rod 9 to connect the grinding tube cap 10 to seal the material tube. After the circuit board 4 fixed at the bottom of the fixed base 2 is powered on, the motor 3 is driven, so that the eccentric cylinder 5 drives the bearing sleeve 6 to rotate, thereby allowing the material to be ground. 2: When the device needs to maintain a good buffering and shock absorption effect, a certain degree of vibration will be generated during the operation of the device, which will change the angle of the support bar 17. At the same time, the opposing impact elastic force between spring 14 and spring 19 on the surface of the slider 15 is used to better buffer and reduce the vibration during the operation of the device. The structural design of spring 12 and damper 13 is used to better absorb the vibration generated during the operation of the device. The structural design of spring 22 and damper 23 reduces the possibility of the placement surface being affected by vibration waves. This helps to better maintain the stability of the device during operation and thus helps to better maintain the shock absorption effect of the device during operation.
[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A grinder with a double damping structure, characterized by, The device includes a fixed base (2), a stop block (21) is bolted to the top of the fixed base (2), a slide rod (18) is bolted to one side of the stop block (21), a slider (15) is sleeved on the outer circumference of the slide rod (18), a spring three (19) is welded to one side of the slider (15), a spring two (14) is welded to one side of the stop block (21), a slide groove (16) is provided on the top of the slider (15), a support bar (17) is connected to the inner wall of the slide groove (16) through a damping bearing, a fixed block (20) is connected to the top of the support bar (17) through a damping bearing, the fixed base (2) is bolted to the top of the fixed block (20), a circular plate (11) is bolted to the top of the fixed base (2), a spring one (12) is welded to the top of the circular plate (11), and a damper one (13) is sleeved on the inner wall of the spring.
2. The polisher with a double damping structure according to claim 1, wherein, The bottom of the fixed base (2) is connected to the base plate (24) by bolts. A spring four (22) is welded to the bottom of the base plate (24). A damper four (23) is sleeved on the inner circumference of the spring four (22). A base (1) is connected to one end of the base plate (24) by bolts.
3. The polisher with a double damping structure according to claim 1, wherein, The bottom of the fixed base (2) is connected to a motor (3) by bolts. The output shaft of the motor (3) is inserted into an eccentric cylinder (5). A circuit board (4) is fixed to the bottom of the fixed base (2). The circuit board (4) is electrically connected to the motor (3). A bearing sleeve (6) is provided on the top of the eccentric cylinder (5). A sample plate (7) is provided on the top of the bearing sleeve (6). A groove (8) is opened on the surface of the sample plate (7). A threaded rod (9) is provided on the top of the sample plate (7). A grinding tube cap (10) is threadedly connected to the threaded rod (9).
4. The polisher with a double damping structure according to claim 1, wherein, There are multiple slide bars (18), sliders (15) and support bars (17), and the slide bars (18), sliders (15) and support bars (17) are all symmetrically distributed.
5. The polisher with a double damping structure according to claim 1, wherein There are multiple springs (12), dampers (13) and circular plates (11), and the springs (12), dampers (13) and circular plates (11) are arranged in a ring shape.
6. The polisher with a double damping structure according to claim 2, wherein There are multiple springs (22) and dampers (23), and the springs (22) and dampers (23) are arranged in a linear equidistant distribution.
7. The polisher with a double damping structure according to claim 3, wherein The sample disk (7), the bearing sleeve and the eccentric cylinder (5) are all made of high-strength aluminum alloy.