CN215890962U - Double-shaft dynamic balance type grinding device - Google Patents
Double-shaft dynamic balance type grinding device Download PDFInfo
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- CN215890962U CN215890962U CN202122510185.9U CN202122510185U CN215890962U CN 215890962 U CN215890962 U CN 215890962U CN 202122510185 U CN202122510185 U CN 202122510185U CN 215890962 U CN215890962 U CN 215890962U
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Abstract
The utility model provides a double-shaft dynamic balance type grinding device which comprises a driving motor, a base assembly, a crankshaft assembly, a first balance shaft assembly, a second balance shaft assembly, a connecting rod assembly, a linear guide assembly and an upper reciprocating assembly, wherein the base assembly is arranged on the upper portion of the base; the crankshaft assembly comprises a first crankshaft, a second crankshaft and a crank pin, and the first balance shaft assembly and the second balance shaft assembly are symmetrically distributed on two sides of the crankshaft assembly. Both sides of the crankshaft assembly are provided with bearings, so that the support rigidity and strength of the crankshaft can be greatly improved, reciprocating inertia force generated by larger reciprocating inertia mass can be borne, and a large batch of grinding samples can be ground at one time. The balance block is added on the crankshaft to offset the centrifugal unbalanced force generated by the centrifugal inertia mass at the lower end of the connecting rod assembly and transfer the direction of the inertia force generated by part of reciprocating inertia mass, and the reciprocating inertia force generated by the reciprocating inertia mass can be completely offset through the double-shaft dynamic balance structure, so that the dynamic balance of the whole grinding machine is realized, and the grinding device is ensured to have high reliability and operate stably.
Description
Technical Field
The utility model relates to the technical field of grinding devices, in particular to a double-shaft dynamic balance type grinding device.
Background
The grinder adapter with large grinding amount has large reciprocating motion mass, has high requirements on the rigidity and the strength of the eccentric rotating shaft and the motor shaft when bearing of the connecting rod is stressed, and has high requirements on the bearing capacity of the bearing at the output end of the motor. Therefore, the grinding amount of the common grinding machine is difficult to increase due to the influences of the rigidity and the strength of the motor shaft, the bearing carrying capacity of the output end of the motor and the like. When the grinding amount is increased, the support shaft causes the connecting rod to incline due to insufficient rigidity, so that the service lives of the connecting rod bearing and the motor bearing are further shortened, and meanwhile, the vibration and the noise of the whole machine are further increased.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a double-shaft dynamic balance type grinding device.
In order to achieve the purpose, the technical scheme adopted by the utility model for solving the technical problems is as follows: a double-shaft dynamic balance type grinding device comprises a driving motor, a base assembly, a crankshaft assembly, a first balance shaft assembly, a second balance shaft assembly, a connecting rod assembly, a linear guide assembly and an upper reciprocating assembly;
the base assembly comprises a base, a first supporting seat and a second supporting seat;
the crankshaft assembly comprises a first crankshaft, a second crankshaft, a crank pin and a main driving gear, the first crankshaft is rotatably arranged on the first supporting seat, the second crankshaft is rotatably arranged on the second supporting seat, the crank pin is connected between the first crankshaft and the second crankshaft, balance blocks are arranged on the first crankshaft or/and the second crankshaft, the shaft end of the first crankshaft is connected with the driving motor, and the main driving gear is arranged on the second crankshaft;
the first balance shaft assembly and the second balance shaft assembly are symmetrically distributed on two sides of the crankshaft assembly, the first balance shaft assembly comprises a first balance shaft and a first driven gear, the first balance shaft is rotatably mounted on the first supporting seat and the second supporting seat, a balance block is arranged on the first balance shaft, the first driven gear is mounted on the first balance shaft, and the first driven gear is meshed with the main driving gear; the second balance shaft assembly comprises a second balance shaft and a second driven gear, the second balance shaft is rotatably arranged on the first supporting seat and the second supporting seat, a balance block is arranged on the second balance shaft, the second driven gear is arranged on the second balance shaft, and the second driven gear is meshed with the main driving gear;
one end of a connecting rod of the connecting rod assembly is rotatably arranged on the crank pin, and the other end of the connecting rod is hinged to the upper reciprocating assembly;
the linear guide assembly is vertically installed on the base assembly, and the upper reciprocating assembly is installed on a sliding block of the linear guide assembly.
By adopting the technical scheme of the utility model, the driving motor runs at a high speed to drive the crankshaft assembly to rotate at a high speed, the upper reciprocating assembly (containing the test tube) is driven to reciprocate up and down at a high speed by the crankshaft, the connecting rod and the linear guide assembly, and the sample in the test tube can be quickly and efficiently ground by adding a proper amount of grinding beads and grinding samples into the test tube. Because the connecting rod acts on the crank pin of the crankshaft assembly, and the two sides of the crankshaft assembly are provided with the bearings, the supporting rigidity and the strength of the crankshaft can be greatly improved, the reciprocating inertia force generated by larger reciprocating inertia mass can be borne, and a large batch of grinding samples can be ground at one time. The balance block is added on the crankshaft to offset the centrifugal unbalanced force generated by the centrifugal inertia mass at the lower end (including a crank pin) of the connecting rod assembly, meanwhile, the balance block mass is properly increased to transfer the direction of the inertia force generated by part of reciprocating inertia mass (the total mass of the upper end of the connecting rod assembly and the upper reciprocating assembly).
Furthermore, a first balance block opposite to the position of the crank pin is arranged on the first crankshaft, and a second balance block opposite to the position of the crank pin is arranged on the second crankshaft.
Furthermore, a third balancing weight and a fourth balancing weight are arranged on the first balancing shaft, the third balancing weight and the fourth balancing weight are respectively positioned on two sides of the first supporting seat and the second supporting seat, and the third balancing weight and the fourth balancing weight are symmetrically arranged relative to the connecting rod assembly; and the second balance shaft is provided with a fifth balance block and a sixth balance block, the fifth balance block and the sixth balance block are respectively positioned at two sides of the first supporting seat and the second supporting seat, and the fifth balance block and the sixth balance block are symmetrically arranged relative to the connecting rod assembly.
By adopting the preferable scheme, the balance blocks are distributed more uniformly and symmetrically, and the stress balance is ensured.
Further, the gear diameters, the modules and the tooth numbers of the main driving gear and the first driven gear and the second driven gear are the same; the gravity center phase angles of the first weight and the second weight relative to the respective axes are the same; the center of gravity phase angles of the third balance weight, the fourth balance weight, the fifth balance weight and the sixth balance weight relative to the respective axes are the same; when the centers of gravity of the first weight and the second weight are at the highest position points, the centers of gravity of the third weight, the fourth weight, the fifth weight and the sixth weight are also at the highest position points.
By adopting the preferable scheme, the crankshaft assembly and the balance shaft assemblies on the two sides rotate in the same speed and opposite directions.
Further, if the centrifugal force generated by the centrifugal inertial mass at the lower end (including the crank pin) of the connecting rod assembly is F1, the maximum reciprocating inertial force generated by the total mass of the upper end of the connecting rod assembly and the upper reciprocating assembly is F2, the centrifugal force generated by the total mass of the first weight and the second weight is F3, and the centrifugal force generated by the total mass of the third weight, the fourth weight, the fifth weight and the sixth weight is F4, F3 is F1+ F2 1/2, and F4 is F2 1/2.
By adopting the preferred scheme, the dynamic balance of the whole grinding machine is realized, the operation stability of the grinding device is greatly improved, the vibration noise of the device is reduced, and the operation reliability of the device is improved.
Further, the upper reciprocating assembly comprises a grinding frame assembly, an adapter assembly and an adapter fixing assembly, the grinding frame assembly is mounted on the sliding block of the linear guide assembly, the adapter assembly is used for placing a sample tube to be ground, and the adapter fixing assembly is used for fixedly mounting the adapter assembly on the grinding frame assembly.
Further, grind the frame subassembly including grinding the frame, grinding a pivot and grinding a pivot gland, sharp direction subassembly includes guide rail and slider, the guide rail vertical install in first bearing upper portion, grind the frame and be fixed in on the slider, grind a pivot horizontal installation in the lower part of grinding the frame, grind a pivot gland fixed mounting in grind a lower part, still be equipped with on the grinding frame pivot gland overlap in the locating hole groove of grinding a pivot tip.
Adopt above-mentioned preferred scheme, make things convenient for the butt joint installation of grinding frame subassembly and link assembly.
Further, the top of the grinding frame comprises a top plate, the adapter assembly is placed on the surface of the top plate, the adapter fixing assembly comprises a cross beam, a jacking screw rod and a locking nut, the jacking screw rod is in threaded connection with the cross beam, and the locking nut is in threaded connection with the jacking screw rod; and after the jacking screw abuts against the adapter assembly, the locking nut is screwed and pressed on the cross beam.
By adopting the preferable scheme, the placement of samples in large batches is facilitated, and the stability in operation is improved.
Further, the first crankshaft is mounted on a first supporting seat through a bearing, and the second crankshaft is mounted on a second supporting seat through a bearing; the lower end of a connecting rod of the connecting rod assembly is arranged on the crank pin through a bearing, and the upper end of the connecting rod is arranged on the rotating shaft of the grinding frame through a bearing; the first balance shaft and the second balance shaft are mounted on the first supporting seat and the second supporting seat through bearings.
By adopting the preferable scheme, the moving smoothness of each rotating mechanism is ensured.
Further, still include double-deck damper assembly, double-deck damper assembly includes first elastic element, bottom plate and second elastic element, the second elastic element install the lower surface of base, the bottom plate is installed the lower surface of second elastic element, first elastic element install the lower surface of bottom plate.
With the above preferred arrangement, vibrations due to the inconsistent mass of the adapter assembly at each time, etc., can be further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a front view of one embodiment of the present invention;
FIG. 3 is a left side view of one embodiment of the present invention;
FIG. 4 is a cross-sectional view in horizontal section of one embodiment of the present invention;
FIG. 5 is a schematic perspective view of a crankshaft assembly of the present invention;
FIG. 6 is a front view of the crankshaft assembly of the present invention;
FIG. 7 is a schematic perspective view of the balance shaft assembly of the present invention;
FIG. 8 is a front view of the balance shaft assembly of the present invention.
Names of corresponding parts represented by numerals and letters in the drawings:
1-driving a motor; 2-a base assembly; 21-a base; 22-a first bearing seat; 23-a second bearing block; 24-a bearing; 25-a bearing; 3-a crankshaft assembly; 31-a first crankshaft; 32-a second crankshaft; 33-crank pin; 34-a first weight; 35-a second weight; 36-a main drive gear; 4-a linkage assembly; 41-connecting rod; 42-a bearing; 43-a bearing; 5-an upper reciprocating component; 51-a grinding frame; 52-grinding frame rotating shaft; 53-grinding frame rotating shaft gland; 54-an adapter assembly; 55-a cross beam; 56-tightening the screw rod; 57-locking nut; 6-a linear guide assembly; 61-a guide rail; 62-a slide block; 7-a first balance shaft assembly; 71-a first balance shaft; 72-a first driven gear; 73-a third counterweight; 74-a fourth counterweight; 75-a bearing; 76-a bearing; 8-a second balance shaft assembly; 81-a second balance shaft; 82-a second driven gear; 83-fifth weight; 84-a sixth weight; 85-a bearing; 86-a bearing; 9-a double-layer shock-absorbing component; 91-a first elastic element; 92-a base plate; 93-second elastic element.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 8, a double-shaft dynamic balance type grinding device comprises a driving motor 1, a base assembly 2, a crankshaft assembly 3, a first balance shaft assembly 7, a second balance shaft assembly 8, a connecting rod assembly 4, a linear guide assembly 6 and an upper reciprocating assembly 5;
the base assembly 2 comprises a base 21, a first bearing 22 and a second bearing 23;
the crankshaft assembly 3 comprises a first crankshaft 31, a second crankshaft 32, a crank pin 33 and a main driving gear 36, wherein the first crankshaft 31 is rotatably arranged on the first bearing seat 22, the second crankshaft 32 is rotatably arranged on the second bearing seat 23, the crank pin 33 is connected between the first crankshaft 31 and the second crankshaft 32, the first crankshaft 31 or/and the second crankshaft 32 is/are provided with a balance weight, the shaft end of the first crankshaft 31 is connected with the driving motor 1, and the main driving gear 36 is arranged on the second crankshaft 32;
the first balance shaft assembly 7 and the second balance shaft assembly 8 are symmetrically distributed on two sides of the crankshaft assembly 3, the first balance shaft assembly 7 comprises a first balance shaft 71 and a first driven gear 72, the first balance shaft 71 is rotatably installed on the first supporting seat 22 and the second supporting seat 23, a balance block is arranged on the first balance shaft 71, the first driven gear 72 is installed on the first balance shaft 71, and the first driven gear 72 is meshed with the main driving gear 36; the second balance shaft assembly 8 comprises a second balance shaft 81 and a second driven gear 82, the second balance shaft 81 is rotatably arranged on the first supporting seat 22 and the second supporting seat 23, a balance block is arranged on the second balance shaft 81, the second driven gear 82 is arranged on the second balance shaft 81, and the second driven gear 82 is meshed with the main driving gear 36;
one end of a connecting rod 41 of the connecting rod assembly 4 is rotatably arranged on the crank pin 33, and the other end of the connecting rod 41 is hinged to the lower part of the upper reciprocating assembly 5;
the upper reciprocating assembly 5 is mounted on the slide block 62 of the linear guide assembly 6.
The beneficial effect of adopting above-mentioned technical scheme is: the driving motor runs at a high speed to drive the crankshaft assembly to rotate at a high speed, the upper reciprocating assembly (containing the test tube) is driven to reciprocate at a high speed up and down through the crankshaft, the connecting rod and the linear guide assembly, and the sample in the test tube can be quickly and efficiently ground by adding a proper amount of grinding beads and grinding samples into the test tube. Because the connecting rod acts on the crank pin of the crankshaft assembly, and the two sides of the crankshaft assembly are provided with the bearings, the supporting rigidity and the strength of the crankshaft can be greatly improved, the reciprocating inertia force generated by larger reciprocating inertia mass can be borne, and a large batch of grinding samples can be ground at one time. The balance weight is added on the crankshaft to offset the centrifugal unbalanced force generated by the centrifugal inertia mass at the lower end of the connecting rod assembly, meanwhile, the direction of the inertia force generated by part of reciprocating inertia mass (the total mass of the upper end of the connecting rod assembly and the upper reciprocating assembly) is transferred by properly increasing the mass of the balance weight, and the reciprocating inertia force generated by the reciprocating inertia mass can be completely offset through the double-shaft dynamic balance structure, so that the dynamic balance of the whole grinding machine is realized, and the grinding device is ensured to have high reliability and stable operation.
In other embodiments of the present invention, as shown in fig. 1 to 8, a first weight 34 is provided on the first crankshaft 31 to be opposite to the crankpin, and a second weight 35 is provided on the second crankshaft 32 to be opposite to the crankpin. The first balance shaft 71 is provided with a third balance weight 73 and a fourth balance weight 74, the third balance weight 73 and the fourth balance weight 74 are respectively positioned at two sides of the first supporting seat 22 and the second supporting seat 23 and are symmetrically arranged relative to the connecting rod assembly; the second balance shaft 81 is provided with a fifth balance weight 83 and a sixth balance weight 84, and the fifth balance weight 83 and the sixth balance weight 84 are respectively positioned on two sides of the first support seat 22 and the second support seat 23 and are symmetrically arranged relative to the connecting rod assembly. The beneficial effect of adopting above-mentioned technical scheme is: the balance blocks are distributed more uniformly and symmetrically, so that the stress balance is ensured.
In other embodiments of the present invention, the balance weight on each crankshaft and each balance shaft may be in a structure of a balance weight part, or may be in a structure in which the balance weight and the crankshaft are designed as a whole, and the balance weight and the balance shaft are designed as a whole.
In other embodiments of the present invention, the first crankshaft 31, the second crankshaft 32, and the crank pin 33 are provided separately, or the crank pin 33 is integrally formed with the first crankshaft 31 or the second crankshaft 32.
In other embodiments of the present invention, as shown in fig. 3 and 4, the gear diameters, modules, and numbers of teeth of the main drive gear 36 and the first and second driven gears 72 and 82 are the same; the center of gravity phase angles of the first weight 34 and the second weight 35 with respect to the respective axes are the same; the center of gravity phase angles of the third weight 73, the fourth weight 74, the fifth weight 83, and the sixth weight 84 with respect to the respective axes are the same; when the centers of gravity of the first weight 34 and the second weight 35 are at the highest position points, the centers of gravity of the third weight 73, the fourth weight 74, the fifth weight 83, and the sixth weight 84 are also at the highest position points. The beneficial effect of adopting above-mentioned technical scheme is: the crankshaft assembly and the balance shaft assemblies on the two sides rotate in the same speed and opposite directions.
In another embodiment of the present invention, when the driving motor rotates at the rated rotation speed, a centrifugal force generated by a centrifugal inertial mass at a lower end (including a crank pin) of the connecting rod assembly is F1, a maximum reciprocating inertial force generated by a total mass of an upper end of the connecting rod assembly and an upper reciprocating assembly is F2, a centrifugal force generated by a total mass of the first weight and the second weight is F3, and a centrifugal force generated by a total mass of the third weight, the fourth weight, the fifth weight and the sixth weight is F4, then F3 is F1+ F2 × 1/2, and F4 is F2 × 1/2. The beneficial effect of adopting above-mentioned technical scheme is: the dynamic balance of the whole grinding machine is realized, the operation stability of the grinding device is greatly improved, the vibration noise of the device is reduced, and the operation reliability of the device is improved.
In other embodiments of the present invention, as shown in fig. 2 and 3, the upper shuttle assembly 5 includes a grinder rack assembly mounted on the slide block 62 of the linear guide assembly, an adapter assembly for placing a sample tube to be ground, and an adapter fixture assembly for fixedly mounting the adapter assembly on the grinder rack assembly. The grinding frame assembly comprises a grinding frame 51, a grinding frame rotating shaft 52 and a grinding frame rotating shaft gland 53, the linear guide assembly 6 comprises a guide rail 61 and a sliding block 62, the guide rail 61 is vertically arranged on the upper portion of the first supporting seat 22, the grinding frame 51 is fixed on the sliding block 62, the grinding frame rotating shaft 52 is horizontally arranged on the lower portion of the grinding frame 51, the grinding frame rotating shaft gland 53 is fixedly arranged on the lower portion of the grinding frame 51, and a positioning hole groove sleeved on the end portion of the grinding frame rotating shaft 52 is further formed in the grinding frame rotating shaft gland 53. The beneficial effect of adopting above-mentioned technical scheme is: the butt joint installation of the grinding frame assembly and the connecting rod assembly is facilitated.
In other embodiments of the utility model, as shown in fig. 2 and 3, the top of the grinding frame 51 comprises a top plate, an adapter assembly 54 is placed on the surface of the top plate, the adapter fixing assembly comprises a cross beam 55, a tightening screw 56 and a lock nut 57, the tightening screw 56 is connected to the cross beam 55 in a threaded manner, and the lock nut 57 is connected to the tightening screw 56 in a threaded manner; after the tightening screw 56 presses the adapter assembly 54, the lock nut 57 is screwed and pressed against the cross beam 55, so that the locking is effectively prevented. The beneficial effect of adopting above-mentioned technical scheme is: the large-batch sample is convenient to place, and the stability in operation is improved.
As shown in fig. 2 and 4, in other embodiments of the present invention, the first crankshaft 31 is mounted to the first bearing support 22 via a bearing 24, and the second crankshaft 32 is mounted to the second bearing support 23 via a bearing 25; the lower end of a connecting rod 41 of the connecting rod assembly is arranged on the crank pin 33 through a bearing 42, and the upper end of the connecting rod 41 is arranged on a grinding frame rotating shaft 52 through a bearing 43; the right end of the first balance shaft 71 is mounted on the first support 22 through a bearing 75, the left end of the first balance shaft 71 is mounted on the second support 23 through a bearing 76, the right end of the second balance shaft 81 is mounted on the first support 22 through a bearing 85, and the left end of the second balance shaft 81 is mounted on the second support 23 through a bearing 86. The beneficial effect of adopting above-mentioned technical scheme is: ensuring the smooth movement of each rotating mechanism.
In further embodiments of the present invention, the drive motor is coupled to the first crankshaft via an elastomeric coupling. The beneficial effect of adopting above-mentioned technical scheme is: can absorb part of vibration energy and prolong the service life of the driving motor.
In other embodiments of the present invention, further comprising a double-layer damper assembly 9, the double-layer damper assembly 9 comprises a first elastic member 91, a base plate 92, and a second elastic member 93, the second elastic member 93 is mounted on a lower surface of the base 21, the base plate 92 is mounted on a lower surface of the second elastic member 93, and the first elastic member 91 is mounted on a lower surface of the base plate 92. The beneficial effect of adopting above-mentioned technical scheme is: vibrations due to the inconsistent mass of the adapter assembly at a time, etc., can be further reduced.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (10)
1. A double-shaft dynamic balance type grinding device is characterized by comprising a driving motor, a base assembly, a crankshaft assembly, a first balance shaft assembly, a second balance shaft assembly, a connecting rod assembly, a linear guide assembly and an upper reciprocating assembly;
the base assembly comprises a base, a first supporting seat and a second supporting seat;
the crankshaft assembly comprises a first crankshaft, a second crankshaft, a crank pin and a main driving gear, the first crankshaft is rotatably arranged on the first supporting seat, the second crankshaft is rotatably arranged on the second supporting seat, the crank pin is connected between the first crankshaft and the second crankshaft, balance blocks are arranged on the first crankshaft or/and the second crankshaft, the shaft end of the first crankshaft is connected with the driving motor, and the main driving gear is arranged on the second crankshaft;
the first balance shaft assembly and the second balance shaft assembly are symmetrically distributed on two sides of the crankshaft assembly, the first balance shaft assembly comprises a first balance shaft and a first driven gear, the first balance shaft is rotatably mounted on the first supporting seat and the second supporting seat, a balance block is arranged on the first balance shaft, the first driven gear is mounted on the first balance shaft, and the first driven gear is meshed with the main driving gear; the second balance shaft assembly comprises a second balance shaft and a second driven gear, the second balance shaft is rotatably arranged on the first supporting seat and the second supporting seat, a balance block is arranged on the second balance shaft, the second driven gear is arranged on the second balance shaft, and the second driven gear is meshed with the main driving gear;
one end of a connecting rod of the connecting rod assembly is rotatably arranged on the crank pin, and the other end of the connecting rod is hinged to the upper reciprocating assembly;
the linear guide assembly is vertically installed on the base assembly, and the upper reciprocating assembly is installed on a sliding block of the linear guide assembly.
2. The double-shaft dynamic balance type grinding apparatus according to claim 1, wherein a first weight is provided on the first crankshaft to be opposed to the crank pin, and a second weight is provided on the second crankshaft to be opposed to the crank pin.
3. The biaxial dynamic balance type grinding device according to claim 2, wherein a third weight and a fourth weight are provided on the first balance shaft, the third weight and the fourth weight are respectively located on both sides of the first bearing block and the second bearing block, and the third weight and the fourth weight are symmetrically arranged with respect to the connecting rod assembly; and the second balance shaft is provided with a fifth balance block and a sixth balance block, the fifth balance block and the sixth balance block are respectively positioned at two sides of the first supporting seat and the second supporting seat, and the fifth balance block and the sixth balance block are symmetrically arranged relative to the connecting rod assembly.
4. The biaxial dynamic balance type grinding device according to claim 3, wherein the gear diameter, the module, the number of teeth of the main drive gear and the first and second driven gears are all the same; the gravity center phase angles of the first weight and the second weight relative to the respective axes are the same; the center of gravity phase angles of the third balance weight, the fourth balance weight, the fifth balance weight and the sixth balance weight relative to the respective axes are the same; when the centers of gravity of the first weight and the second weight are at the highest position points, the centers of gravity of the third weight, the fourth weight, the fifth weight and the sixth weight are also at the highest position points.
5. The double-shaft dynamic balance type grinding device according to claim 4, wherein a centrifugal force generated by centrifugal inertial masses of a lower end of the connecting rod assembly and the crank pin is F1, a maximum reciprocating inertial force generated by a total mass of an upper end of the connecting rod assembly and the upper reciprocating assembly is F2, a centrifugal force generated by a total mass of the first weight and the second weight is F3, and a centrifugal force generated by a total mass of the third weight, the fourth weight, the fifth weight and the sixth weight is F4, so that F3 is F1+ F2 × 1/2, and F4 is F2 is 1/2.
6. The dual-axis dynamic balance type grinding apparatus according to claim 1, wherein the upper reciprocating assembly comprises a grinding frame assembly, an adapter assembly and an adapter fixing assembly, the grinding frame assembly is mounted on the slide block of the linear guide assembly, the adapter assembly is used for placing a sample tube to be ground, and the adapter fixing assembly is used for fixedly mounting the adapter assembly on the grinding frame assembly.
7. The double-shaft dynamic balance type grinding device according to claim 6, wherein the grinding frame assembly comprises a grinding frame, a grinding frame rotating shaft and a grinding frame rotating shaft gland, the linear guide assembly comprises a guide rail and a slide block, the guide rail is vertically installed on the upper portion of the first supporting seat, the grinding frame is fixed on the slide block, the grinding frame rotating shaft is horizontally installed on the lower portion of the grinding frame, the grinding frame rotating shaft gland is fixedly installed on the lower portion of the grinding frame, and a positioning hole groove sleeved on the end portion of the grinding frame rotating shaft is further arranged on the grinding frame rotating shaft gland.
8. The biaxial dynamic balance type grinding device according to claim 7, wherein the top of the grinding frame comprises a top plate, the adapter assembly is placed on the surface of the top plate, the adapter fixing assembly comprises a cross beam, a tightening screw and a lock nut, the tightening screw is in threaded connection with the cross beam, and the lock nut is in threaded connection with the tightening screw; and after the jacking screw abuts against the adapter assembly, the locking nut is screwed and pressed on the cross beam.
9. The double-shaft dynamic balance type grinding apparatus according to claim 8, wherein the first crankshaft is mounted to a first support base via a bearing, and the second crankshaft is mounted to a second support base via a bearing; the lower end of a connecting rod of the connecting rod assembly is arranged on the crank pin through a bearing, and the upper end of the connecting rod is arranged on the rotating shaft of the grinding frame through a bearing; the first balance shaft and the second balance shaft are mounted on the first supporting seat and the second supporting seat through bearings.
10. The biaxial dynamic balance type grinding apparatus according to claim 1, further comprising a double-layer damper assembly including a first elastic member, a base plate, and a second elastic member, the second elastic member being mounted on a lower surface of the base, the base plate being mounted on a lower surface of the second elastic member, the first elastic member being mounted on a lower surface of the base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122510185.9U CN215890962U (en) | 2021-10-19 | 2021-10-19 | Double-shaft dynamic balance type grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122510185.9U CN215890962U (en) | 2021-10-19 | 2021-10-19 | Double-shaft dynamic balance type grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215890962U true CN215890962U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122510185.9U Active CN215890962U (en) | 2021-10-19 | 2021-10-19 | Double-shaft dynamic balance type grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215890962U (en) |
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2021
- 2021-10-19 CN CN202122510185.9U patent/CN215890962U/en active Active
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