Sample mixing and shaking vibration device

Abstract

The utility model discloses a sample mixing and shaking vibration device which comprises a temperature control box, an eccentric shaft, a rotary driving mechanism and a workbench, a sample rack is arranged on the top side of the temperature control box, the temperature control box is used for heating or refrigerating the sample rack, and a shaft hole is formed in the bottom side of the temperature control box; the eccentric shaft is longitudinally arranged and rotationally matched in the shaft hole; the rotary driving mechanism is used for driving the eccentric shaft to do horizontal eccentric rotary motion, so that the temperature control box drives the sample rack to do reciprocating shaking motion in a horizontal plane; the workbench is provided with a first abutting piece and a second abutting piece, the first abutting piece abuts against the bottom side of the temperature control box to form rolling contact, the temperature control box is provided with an abutting portion, and the second abutting piece abuts against the top side of the abutting portion to form rolling contact. The first abutting piece and the second abutting piece are arranged on the workbench, the top side and the bottom side of the temperature control box are in rolling contact, longitudinal movement of the temperature control box is limited, and a sample on the sample rack shakes more evenly.

Description

Technical Field

[0001] The utility model relates to the technical field of oscillation equipment, in particular to a sample mixing and shaking vibration device. Background Art

[0002] Oscillation equipment is an important experimental equipment, which usually includes a driving mechanism and a sample rack. The driving motor of the driving mechanism drives the eccentric shaft to rotate longitudinally to connect the sample rack, so as to drive the sample rack to shake horizontally. When the load of the driving mechanism becomes larger, or the load volume becomes larger and the center of gravity increases, the sample rack will not only shake in the horizontal direction, but also easily move longitudinally, causing the samples in the sample rack to shake violently. Utility Model Content

[0003] The utility model aims to provide a sample mixing and shaking vibration device to make the samples on the sample rack shake more evenly.

[0004] To achieve the above-mentioned purpose, the solution of the utility model is: a sample mixing and shaking vibration device, including a temperature control box, an eccentric shaft, a rotary drive mechanism and a workbench;

[0005] A sample rack is arranged on the top side of the temperature control box, and the temperature control box is used to heat or cool the sample rack. An axial hole is arranged on the bottom side of the temperature control box;

[0006] The eccentric shaft is arranged longitudinally and rotatably fits in the shaft hole;

[0007] The rotary drive mechanism is used to drive the eccentric shaft to perform horizontal eccentric rotary motion, so that the temperature control box drives the sample rack to perform reciprocating shaking motion in a horizontal plane;

[0008] The workbench is provided with a first abutment and a second abutment. The first abutment abuts against the bottom side of the temperature control box to form rolling contact. The temperature control box has an abutment portion. The second abutment abuts against the top side of the abutment portion to form rolling contact.

[0009] Further, the first abutment member includes a support block, a first ball mounting member and a first ball;

[0010] The support block is fixedly arranged on the workbench and is located below the temperature control box. The first ball mounting member is arranged on the top side of the support block. The first ball mounting member is provided with a first mounting groove on the top side. The first ball is arranged in the first mounting groove in a rolling manner and turns around its ball center. The top side of the first ball protrudes out of the first mounting groove and rolls in contact with the bottom side of the temperature control box.

[0011] The abutment portion protrudes from the outer side of the temperature control box, and a second ball mounting member is provided on the top side thereof, and a second mounting groove is provided on the top side of the second ball mounting member, in which a second ball is rollingly arranged, and the second ball turns around its ball center, and the second mounting groove is protruded from the top side thereof;

[0012] The second abutment member is fixedly arranged on the workbench and extends directly above the second ball to form a stop arm, and the second ball rolls in contact with the lower bottom surface of the stop arm.

[0013] Furthermore, a ball groove for the first ball to roll is formed on the bottom surface of the temperature control box, and the first ball is restricted to roll within the range of the ball groove.

[0014] Furthermore, the temperature control box is a square structure, and the number of support blocks is four, which are respectively arranged at the four corners of the temperature control box;

[0015] The number of the abutting parts is four, which are respectively arranged on the four outer sides of the temperature control box, and the number of the second abutting parts is also four accordingly.

[0016] Furthermore, a bearing is provided between the shaft hole of the temperature control box and the eccentric shaft.

[0017] Furthermore, it also includes an eccentric wheel, wherein the eccentric shaft is arranged on the top side of the eccentric wheel, the central axis of the eccentric shaft is parallel to the central axis of the eccentric wheel, and the eccentric shaft is arranged at intervals, and a transmission shaft is arranged on the bottom side of the eccentric wheel, and the transmission shaft is arranged along the central axis direction of the eccentric wheel;

[0018] The rotary drive mechanism comprises a drive motor, and the transmission shaft is connected to the drive motor through a reduction transmission mechanism.

[0019] Furthermore, the reduction transmission mechanism includes a driving small wheel, a driven large wheel and a transmission belt;

[0020] The output end of the driving motor is connected to the driving small wheel, the transmission belt connects the driving small wheel and the driven large wheel and transmits the power in the same horizontal plane, and the driven large wheel is connected to the bottom end of the transmission shaft, so that when the driving motor drives the driving small wheel to rotate, the transmission shaft drives the eccentric wheel to rotate around the axis.

[0021] Furthermore, it also includes a tensioning wheel, which is against the outside of the transmission belt and can move closer to or away from the transmission belt.

[0022] Furthermore, the tensioning wheel is fixed on a slider, and also includes a fixing plate and an adjusting bolt. The slider is linearly slidably arranged on the fixing plate, and the adjusting bolt is rotatably arranged on the fixing plate and is screwed on the slider. The adjusting bolt is rotated to make the slider slide relative to the fixing plate, thereby driving the tensioning wheel closer to or away from the transmission belt.

[0023] Furthermore, a temperature conducting block is arranged on the top side of the temperature control box, a mounting groove is formed on the top side of the temperature conducting block, the sample rack is embedded in the mounting groove, a Peltier is arranged in the temperature control box, and the Peltier is fitted with the bottom surface of the temperature conducting block.

[0024] After adopting the above scheme, the beneficial effects of the utility model are:

[0025] The utility model provides a first abutment and a second abutment on a workbench, wherein the first abutment abuts against the bottom side of a temperature control box to form a rolling contact, the temperature control box is provided with an abutment portion, and the second abutment abuts against the top side of the abutment portion to form a rolling contact, forming a rolling contact with the temperature control box in a horizontal direction and restricting its movement longitudinally, so that when the temperature control box drives the sample rack to shake, the samples on the sample rack shake more evenly.

[0026] In addition, the sample rack is arranged on the top side of the temperature control box, and the temperature control box can heat or cool the sample rack to achieve temperature control, so that the samples in the sample rack can be mixed and shaken at different temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0028] Figure 2 It is a left view of the utility model.

[0029] Figure 3 It is a three-dimensional decomposition of the utility model Figure 1 .

[0030] Figure 4 This is another perspective three-dimensional decomposition of the utility model Figure 2 .

[0031] Figure 5 It is a structural schematic diagram of the rotary drive mechanism of the utility model.

[0032] Figure 6 It is a structural schematic diagram of the eccentric wheel of the utility model.

[0033] Description of labels:

[0034] 1-temperature control box, 2-eccentric shaft, 3-rotation drive mechanism, 4-workbench, 5-sample rack, 6-axis hole, 7-first abutment member, 8-second abutment member, 9-contact part, 10-second ball mounting member, 11-second mounting groove, 12-second ball, 13-ball groove, 14-bearing, 15-eccentric wheel, 16-transmission shaft, 17-drive motor, 18-reduction transmission mechanism, 19-tensioning wheel, 20-slider, 21-adjusting bolt, 22-fixing plate, 23-temperature conduction block, 24-mounting groove, 25-Peltier, 26-intermediate support device, 71-support block, 72-first ball mounting member, 73-first ball, 74-first mounting groove, 82-blocking arm, 181-driving small wheel, 182-driven large wheel, 183-transmission belt, 261-support seat, 262-first bearing, 263-second bearing. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the use of terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, so they cannot be understood as limiting the specific protection scope of the utility model.

[0037] The utility model provides a sample mixing and shaking vibration device, such as Figures 1 to 6 As shown, it includes a temperature control box 1, an eccentric shaft 2, a rotary drive mechanism 3 and a workbench 4;

[0038] A sample rack 5 is provided on the top side of the temperature control box 1. The temperature control box 1 is used to heat or cool the sample rack 5. Specifically, Figure 3 As shown, a temperature control box 1 is provided with a temperature conducting block 23 on the top side, a mounting groove 24 is formed on the top side of the temperature conducting block 23, and the sample rack 5 is embedded in the mounting groove 24. A Peltier 25 is provided in the temperature control box 1, and the Peltier 25 is bonded to the bottom surface of the temperature conducting block 23. The temperature conducting block 23 is a metal with heat conduction performance, which can be an aluminum block or a copper block. The Peltier 25 is an existing semiconductor device that can perform temperature control. The heat is transferred to the sample rack 5 or the sample rack 5 is cooled by bonding the temperature conducting block 23 and the Peltier 25.

[0039] like Figure 4 As shown, the temperature control box 1 is provided with an axial hole 6 at the bottom; the eccentric shaft 2 is arranged longitudinally and rotatably fits in the axial hole 6; the rotary drive mechanism 3 is used to drive the eccentric shaft 2 to perform horizontal eccentric rotational motion, so that the temperature control box 1 drives the sample rack 5 to perform reciprocating shaking motion in a horizontal plane, and the sample rack 5 realizes oscillation; specifically, it also includes an eccentric wheel 15, and the eccentric shaft 2 is arranged on the top side of the eccentric wheel 15, as shown in FIG. Figure 6 As shown, the central axis of the eccentric shaft 2 is parallel to the central axis of the eccentric wheel 15, the distance between the two is D, D is not equal to zero, and they are arranged at intervals, a transmission shaft 16 is arranged on the bottom side of the eccentric wheel 15, and the transmission shaft 16 is arranged along the central axis direction of the eccentric wheel 15, the output end of the rotary drive mechanism 3 is connected to the transmission shaft 16, driving the transmission shaft 16 to rotate, so that the eccentric shaft 2 performs eccentric rotation around the central axis of the eccentric wheel 15.

[0040] like Figure 1As shown, the workbench 4 is provided with a first abutment 7 and a second abutment 8, the first abutment 7 abuts against the bottom side of the temperature control box 1 to form a rolling contact, the temperature control box 1 has an abutment portion 9, and the second abutment 8 abuts against the top side of the abutment portion 9 to form a rolling contact. The first abutment 7 and the second abutment 8 form a restriction in the longitudinal direction of the temperature control box 1, ensuring that the temperature control box 1 shakes in a horizontal plane, avoiding longitudinal movement, and making the sample in the sample rack shake more evenly.

[0041] In this specific embodiment, the first abutment member 7 includes a support block 71, a first ball mounting member 72 and a first ball 73; the support block 71 is fixedly set on the workbench 4 and is located below the temperature control box 1. The first ball mounting member 72 is provided with a first mounting groove 74 on the top side. The first ball 73 is rolled in the first mounting groove 74 and flipped around its ball center. Its top side protrudes from the first mounting groove 74. The first ball mounting member 72 is set on the top side of the support block 71, and the first ball 73 rolls and contacts the bottom side of the temperature control box 1; in other embodiments, it can also be a roller, which can achieve rolling contact between the support block 71 and the temperature control box 1.

[0042] In this specific embodiment, the temperature control box 1 is a square structure, and there are four support blocks 71, which are respectively arranged at the four corners of the temperature control box 1, so as to provide more balanced support for the temperature control box 1, and ensure a stable rolling contact between the temperature control box 1 and the support blocks 71, so that the temperature control box 1 can shake more smoothly. Of course, in other embodiments, the temperature control box 1 can also be other shapes, and accordingly, the number of support blocks 71 is adjusted accordingly according to the shape of the temperature control box 1, but is not limited thereto.

[0043] In this specific embodiment, a ball groove 13 for the first ball 73 to roll is formed on the lower bottom surface of the temperature control box 1. The first ball 73 is limited to rolling within the ball groove 13. When the eccentric shaft 2 rotates eccentrically, the temperature control box 1 rotates with the eccentric shaft 2, and the four corners are limited to rolling within the trajectory range of the corresponding ball groove 13. They will not rotate around the axis with the eccentric shaft 2, but will produce reciprocating shaking, so that the sample rack 5 can produce mixed oscillations.

[0044] In this specific embodiment, Figure 3As shown, the abutment portion 9 protrudes from the outer side surface of the temperature control box 1, and a second ball mounting member 10 is provided on the top side thereof, and a second mounting groove 11 is provided on the top side of the second ball mounting member 10, in which a second ball 12 is rollingly arranged, and the second ball 12 flips around its center of the ball, and its top side protrudes from the second mounting groove 11; the second abutment member 8 extends to the top of the second ball 12 to form a stop arm 81, and the second ball 12 rolls and contacts the lower bottom surface of the stop arm 81. When the temperature control box 1 shakes with the eccentric shaft 2, the stop arm 81 only restricts the abutment portion 9 in the longitudinal direction, and forms a rolling contact in the horizontal direction, to ensure that when the temperature control box 1 shakes horizontally, the temperature control box 1 is prevented from moving upward.

[0045] In this specific embodiment, the number of the resistance parts 9 is four, which are respectively arranged on the four outer sides of the temperature control box 1, and the number of the second resistance parts 8 is also four, so as to achieve balanced downward restriction of the outer peripheral side of the temperature control box 1, and can be stably shaken in a horizontal plane; specifically, the number of the second ball mounting parts 10 is also four, and the number of the second balls 12 is also four, that is, one resistance part 9 corresponds to a ball mounting part, a second ball 12 and a second resistance part 8.

[0046] In this specific embodiment, Figure 4 As shown, a bearing 14 is provided between the shaft hole 6 of the temperature control box 1 and the eccentric shaft 2. The bearing 14 is embedded in the shaft hole 6, and the eccentric shaft 2 is fixed to the inner ring of the bearing 14, so that the eccentric shaft 2 rotates more smoothly.

[0047] In this specific embodiment, the rotation drive mechanism 3 includes a drive motor 17. Since the temperature control box 1 is large in size and heavy in weight, the drive motor 17 adopts a large-torque brushless motor to ensure that it can drive the temperature control box 1 to shake. At the same time, the brushless motor operates reliably, has low noise and low energy consumption.

[0048] In order to ensure that the temperature control box 1 shakes steadily, a reduction transmission mechanism 18 is provided between the drive motor 17 and the transmission shaft 16. Figure 5 As shown, the reduction transmission mechanism 18 includes a driving small wheel 181, a driven large wheel 182 and a transmission belt 183; the output end of the driving motor 17 is connected to the driving small wheel 181, the transmission belt 183 connects the driving small wheel 181 and the driven large wheel 182 and transmits them on the same horizontal plane, and the driven large wheel 182 is connected to the bottom end of the transmission shaft 16, so that when the driving motor 17 drives the driving small wheel 181 to rotate, the transmission shaft 16 drives the eccentric wheel 15 to rotate around the axis.

[0049] In order to ensure that the transmission shaft 16 can provide a stable transmission effect in the vertical direction and avoid resonance and axial deviation, an intermediate support device 26 is also provided, including a support seat 261, a first bearing 262 and a second bearing 263. The support seat 261 is fixed under the workbench 4, facing the axial hole 6 of the temperature control box 1, the first bearing 262 is installed on the top side of the support seat 261, and the second bearing 263 is installed on the bottom side of the support seat 261. The transmission shaft 16 passes through the second bearing 263 and the first bearing 262 from bottom to top at one time, and rotates to fit on the axial hole 6.

[0050] In this specific embodiment, a tensioning wheel 19 is also included. The tensioning wheel 19 is against the outside of the transmission belt 183 and can move closer to or away from the transmission belt 183. It can press the transmission belt 183 to keep the transmission belt 183 in a taut state, thereby ensuring the coordination between the transmission belt 183, the driving small wheel 181 and the driven large wheel 182, so that the transmission of the reduction transmission mechanism 18 is stable and the service life is extended.

[0051] In this specific embodiment, Figure 5 As shown, the tensioning wheel 19 is fixed on a slider 20, and also includes a fixing plate 22 and an adjusting bolt 21. The slider 20 is linearly slidably arranged on the fixing plate 22. Specifically, the fixing plate 22 is fixed below the workbench 4 and is located above the reduction transmission mechanism 18. A through hole is provided on the fixing plate 22, and the adjusting bolt 21 passes through the through hole and is rotatably arranged on the fixing plate 22. A bolt hole matching the adjusting bolt 21 is provided on the slider 20. The adjusting bolt 21 passes through the through hole of the fixing plate 22 and is screwed on the slider 20. The adjusting bolt 21 is rotated to make the slider 20 slide relative to the fixing plate 22, thereby driving the tensioning wheel 19 to approach or move away from the transmission belt 183, thereby adjusting the slackness of the transmission belt 183.

[0052] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.

Claims

1. A sample mixing and vibration device, characterized in that: It comprises a temperature control box (1), an eccentric shaft (2), a rotary drive mechanism (3) and a workbench (4); A sample rack (5) is arranged on the top side of the temperature control box (1), and the temperature control box (1) is used to heat or cool the sample rack (5). An axial hole (6) is arranged on the bottom side of the temperature control box (1); The eccentric shaft (2) is arranged longitudinally and rotatably fits in the shaft hole (6); The rotary drive mechanism (3) is used to drive the eccentric shaft (2) to perform horizontal eccentric rotary motion, so that the temperature control box (1) drives the sample holder (5) to perform reciprocating shaking motion in a horizontal plane; A first abutment member (7) and a second abutment member (8) are provided on the workbench (4); the first abutment member (7) abuts against the bottom side of the temperature control box (1) to form rolling contact; the temperature control box (1) has an abutment portion (9); the second abutment member (8) abuts against the top side of the abutment portion (9) to form rolling contact.

2. A sample mixing and vibration device according to claim 1, characterized in that: The first abutment member (7) comprises a support block (71), a first ball mounting member (72) and a first ball (73); The support block (71) is fixedly arranged on the workbench (4) and is located below the temperature control box (1); the first ball mounting member (72) is arranged on the top side of the support block (71); the top side of the first ball mounting member (72) is provided with a first mounting groove (74); the first ball (73) is rollingly arranged in the first mounting groove (74) and turns around its ball center, with its top side protruding out of the first mounting groove (74) and rollingly contacting the bottom side of the temperature control box (1); The abutment portion (9) protrudes from the outer side of the temperature control box (1), and a second ball mounting member (10) is provided on the top side thereof, a second mounting groove (11) is provided on the top side of the second ball mounting member (10), a second ball (12) is rotatably arranged in the second mounting groove (11), and the second ball (12) turns around its ball center, and its top side protrudes from the second mounting groove (11); The second abutment member (8) is fixedly arranged on the workbench (4), and extends directly above the second ball (12) to form a stop arm (81), and the second ball (12) rolls in contact with the bottom surface of the stop arm (81).

3. A sample mixing and vibration device according to claim 2, characterized in that: The lower bottom surface of the temperature control box (1) is formed with a ball groove (13) for the first ball (73) to roll, and the first ball (73) is restricted to roll within the range of the ball groove (13).

4. A sample mixing and vibration device according to claim 2, characterized in that: The temperature control box (1) is a square structure, and the number of support blocks (71) is four, which are respectively arranged at the four corners of the temperature control box (1); The number of the abutting portions (9) is four, which are respectively arranged on the four outer sides of the temperature control box (1), and the number of the second abutting members (8) is also four accordingly.

5. A sample mixing and vibration device according to claim 1, characterized in that: A bearing (14) is provided between the axial hole (6) of the temperature control box (1) and the eccentric shaft (2).

6. A sample mixing and vibration device according to claim 1, characterized in that: It also includes an eccentric wheel (15), wherein the eccentric shaft (2) is arranged on the top side of the eccentric wheel (15), the central axis of the eccentric shaft (2) is parallel to the central axis of the eccentric wheel (15), and the eccentric shaft (2) is arranged at intervals, and a transmission shaft (16) is arranged on the bottom side of the eccentric wheel (15), and the transmission shaft (16) is arranged along the central axis direction of the eccentric wheel (15); The rotary drive mechanism (3) comprises a drive motor (17), and the transmission shaft (16) is transmission-connected to the drive motor (17) via a reduction transmission mechanism (18).

7. A sample mixing and vibration device according to claim 6, characterized in that: The reduction transmission mechanism (18) comprises a driving small wheel (181), a driven large wheel (182) and a transmission belt (183); The output end of the driving motor (17) is connected to the driving small wheel (181), the driving belt (183) is connected to the driving small wheel (181) and the driven large wheel (182) and transmits the power on the same horizontal plane, and the driven large wheel (182) is connected to the bottom end of the transmission shaft (16), so that when the driving motor (17) drives the driving small wheel (181) to rotate, the transmission shaft (16) drives the eccentric wheel (15) to rotate around the axis.

8. A sample mixing and vibration device according to claim 7, characterized in that: It also includes a tension wheel (19), which is against the outside of the transmission belt (183) and can move closer to or away from the transmission belt (183).

9. A sample mixing and vibration device according to claim 8, characterized in that: The tension wheel (19) is fixed on a slider (20), and also includes a fixing plate (22) and an adjusting bolt (21). The slider (20) is linearly slidably arranged on the fixing plate (22), and the adjusting bolt (21) is rotatably arranged on the fixing plate (22) and is screwed on the slider (20). Rotating the adjusting bolt (21) causes the slider (20) to slide relative to the fixing plate (22), thereby driving the tension wheel (19) to approach or move away from the transmission belt (183).

10. The sample mixing and vibration device according to claim 1, characterized in that: The temperature control box (1) is provided with a temperature conducting block (23) on the top side, a mounting groove (24) is formed on the top side of the temperature conducting block (23), the sample holder (5) is embedded in the mounting groove (24), a Peltier (25) is provided in the temperature control box (1), and the Peltier (25) is in contact with the bottom surface of the temperature conducting block (23).

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