An incubation gear-mounted positioning device and a sample analysis device

Abstract

The utility model discloses an incubation gear installation positioning device and sample analysis device, incubation gear installation positioning device includes incubation guide support piece, needle roller bearing support piece, wedge block guide piece, guide shaft and elastic device, incubation guide support piece is equipped with through groove, and needle roller bearing support piece and wedge block guide piece are placed in the through groove, the guide shaft is placed in the through groove, and the horizontal penetration needle roller bearing support piece, and wedge block guide piece longitudinal sliding connection along the through groove, the bottom of needle roller bearing support piece is equipped with the first slope, and the top of wedge block guide piece is equipped with the second slope of adaptation sliding with the first slope, and the first slope and the second slope sliding meet, and the elastic device fixed connection is in the bottom of incubation guide support piece, and the elastic part is connected with the bottom of wedge block guide piece, the utility model discloses the elasticity - slope self - adapting mechanism, has solved the problem of high gear processing precision, the assembly difficult problem.

Description

Technical Field

[0001] This utility model relates to the field of sample analysis instrument technology, and in particular to an incubation gear mounting and positioning device and a sample analysis device. Background Technology

[0002] In existing technologies, the incubation of large gears uses a three-point positioning principle, employing three bearings to hold the inner ring of the gear for positioning and installation. Two of the bearings are rigidly installed, while the third bearing is flexibly installed using an elastic steel sheet. This method presents the following challenges: 1. Gears are large in size and difficult to process. However, excessive reduction in tolerance makes it difficult to guarantee machining accuracy and will significantly increase machining costs.

[0003] 2. Gears operate at high speeds in actual operation, requiring high assembly precision. At the same time, all parts related to gear installation also have high machining precision requirements. Improper assembly will generate significant impact and noise, affecting the reliability of gear rotation.

[0004] 3. High requirements are placed on the material properties of the spring, as its performance determines the service life of the spring and has a significant impact on the running stability of the gear. Moreover, the performance of spring materials varies, and the relationship between the size, load and fatigue life of the spring is difficult to control. The influence of the load on the spring on its deformation is difficult to analyze and simulate accurately. Utility Model Content

[0005] To solve the above problems, this utility model provides an incubation gear mounting and positioning device, the specific technical solution of which is as follows: The device includes an incubation guide support, a needle roller bearing support, a wedge block guide, a guide shaft, and an elastic device; The incubation guide support is provided with a through groove, and the needle roller bearing support and the wedge block guide are placed in the through groove; The guide shaft is placed in the through groove and extends horizontally through the needle roller bearing support. The dimension of the needle roller bearing support along the direction of the guide shaft is smaller than that of the through groove. The wedge-shaped guide is adapted to the size of the through groove, and the wedge-shaped guide is slidably connected along the longitudinal direction of the through groove; The bottom of the needle roller bearing support is provided with a first inclined surface, and the top of the wedge block guide is provided with a second inclined surface that is adapted to slide with the first inclined surface. The first inclined surface and the second inclined surface are slidably connected. The elastic device is fixedly connected to the bottom of the incubation guide support, and the elastic part is connected to the bottom of the wedge block guide.

[0006] The bottom of the needle roller bearing support and the top of the wedge block guide are slidably engaged through the first and second inclined surfaces. By utilizing the elastic device and the inclined surfaces, the force can be reversed and adaptively adjusted, automatically compensating for the dimensional error of the gear inner ring, reducing the requirements for the machining and assembly accuracy of the parts, reducing impact noise, and improving operational reliability.

[0007] Furthermore, the incubation guide support includes a connecting portion and a sliding portion; The connecting part is fixedly connected to the incubation support of the sample analyzer; The sliding part is provided with the through groove, and the sliding part is provided with a through hole on the side opposite to the connecting part. The guide shaft passes through the through hole and is connected to one end of the connecting part.

[0008] By restricting the sliding of the needle roller bearing support and wedge block guide within the through groove, the horizontal displacement of the needle roller bearing support is limited.

[0009] Furthermore, the connecting part and the sliding part are integrally connected.

[0010] The device is used in sample analysis instruments and involves many components. The connecting part and sliding part of the incubation guide support are integrally molded, which reduces the number of parts, improves the overall rigidity, and reduces the cumulative assembly error.

[0011] Furthermore, the sliding part has a first threaded hole on the side adjacent to the guide shaft, and a set screw passes through the first threaded hole to fix the guide shaft.

[0012] The guide shaft is secured by set screws perpendicular to it, facilitating its disassembly, assembly, and maintenance.

[0013] Furthermore, the connecting part is provided with a second threaded hole at the through groove, the second threaded hole and the through hole are located in the same axial direction, and the guide shaft is provided with a thread that is adapted to the second threaded hole at the end connected to the connecting part.

[0014] The guide shaft is connected to the connecting part by threads, which ensures the accuracy and stability of the guide, and at the same time facilitates disassembly and assembly.

[0015] Furthermore, the guide shaft extends from the end of the incubation guide support and is provided with screw holes.

[0016] The guide shaft is made of stainless steel with a smooth surface. After prolonged use, it is not easy to remove. However, the guide shaft can be removed using tools by using screws with matching screw holes.

[0017] Furthermore, the elastic device includes an elastic element and a cover plate; One end of the elastic element is connected to the bottom of the wedge-shaped guide, and the other end is connected to the cover plate, which is fixedly connected to the bottom of the incubation guide support.

[0018] The elastomer is enclosed between the wedge-shaped guide and the cover plate to form a closed elastic cavity, preventing dust from entering, extending the life of the elastomer, and providing stable and adjustable elastic support.

[0019] Furthermore, the cover plate is connected to the bottom of the incubation guide support by screws.

[0020] It achieves detachable fixing of the cover plate, while facilitating adjustment of the preload of the elastic element and quick maintenance.

[0021] Furthermore, the cover plate and the wedge-shaped guide are provided with countersunk holes, and the elastic element is connected in the countersunk holes.

[0022] To prevent lateral instability of elastic components and improve the linearity and reliability of elastic force transmission.

[0023] This utility model also provides a sample analysis device, including an incubation support, an incubation tank, a cuvette, a cuvette ring, a gear, and the incubation gear mounting and positioning device described above; The incubation tank is disposed on the incubation support, the colorimetric cup is disposed on the incubation tank, the colorimetric cup is connected to the colorimetric cup ring, and the gear is disposed between the colorimetric cup ring and the incubation support; The top of the needle roller bearing support is provided with a needle roller bearing, and the outer side of the needle roller bearing is connected to the inner side of the gear.

[0024] The beneficial effects of this utility model are as follows: 1. This utility model replaces the traditional elastic steel sheet structure with an elastic-inclined adaptive mechanism, converting the vertical displacement of the elastic element into the horizontal displacement of the needle roller bearing support, thus achieving force reversal. The elastic element continuously applies force to the wedge-shaped guide, ensuring that the needle roller bearing remains tightly against the inner ring of the gear. When the gear undergoes dimensional changes due to manufacturing errors or thermal expansion and contraction, the needle roller bearing support can automatically slide along the guide shaft to compensate, eliminating the need for manual adjustment and solving the problems of high gear machining precision and difficult assembly. At the same time, the elastic-inclined structure can absorb impacts and adjust the bearing position in real time during gear rotation, avoiding rigid impacts, significantly reducing noise and vibration, and improving the stability of equipment operation.

[0025] 2. One end of the guide shaft is connected to the connecting part by a thread, and the other end is fixed by a set screw, forming a two-end positioning to ensure guiding accuracy. At the same time, when disassembling, simply loosen the set screw and use a tool to unscrew the screw hole at the extended end of the guide shaft to quickly pull out the entire guide shaft, which is convenient for maintenance.

[0026] 3. The cover plate and the incubation guide support are connected by screws, which can quickly open the through groove to replace the elastic element or clean the inside; the two ends of the elastic element are respectively positioned in the countersunk holes of the wedge block guide and the cover plate to form axial constraint, prevent lateral bending or instability, and ensure that the elastic force is always transmitted in the predetermined direction. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the device's structure.

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the device.

[0029] Figure 3 This is a schematic diagram of gear installation and positioning.

[0030] Explanation of reference numerals in the attached drawings: 1-Needle roller bearing support, 2-Incubation guide support, 3-Wedge block guide, 4-Cover plate, 5-Screw, 6-Spring, 7-Set screw, 8-Guide shaft, 9-Needle roller bearing, 10-Through groove, 11-Gear, 12-Bearing, 13-Rigid fixed positioning bearing, 14-Spring flexible fixed bearing. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] In the description of the embodiments of this utility model, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly used when the utility model product is in use. These are only for the convenience of describing the utility model and simplifying the description, and are 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. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Example 1 Embodiment 1 of this utility model discloses an incubation gear mounting and positioning device, such as Figure 1 and Figure 2 As shown, the specific structure is as follows: The device includes an incubation guide support 2, a needle roller bearing support 1, a wedge block guide 3, a guide shaft 8, and an elastic device; The incubation guide support 2 is provided with a through groove 10, and the needle roller bearing support 1 and the wedge block guide 3 are placed in the through groove 10; The guide shaft 8 is placed in the through groove 10 and horizontally passes through the needle roller bearing support 1. The dimension of the needle roller bearing support 1 along the direction of the guide shaft 8 is smaller than that of the through groove 10, that is, the needle roller bearing support 1 can move horizontally along the guide shaft 8 in the through groove 10. The wedge-shaped guide 3 is adapted to the size of the through groove 10, and the wedge-shaped guide 3 is slidably connected along the longitudinal direction of the through groove 10; The bottom of the needle roller bearing support 1 is provided with a first inclined surface, and the top of the wedge block guide 3 is provided with a second inclined surface that is adapted to slide with the first inclined surface. The first inclined surface and the second inclined surface are slidably connected. The top of the needle roller bearing support 1 is equipped with a needle roller bearing 9 for supporting the gear 11.

[0035] The elastic device is fixedly connected to the bottom of the incubation guide support 2, and the elastic part is connected to the bottom of the wedge block guide 3.

[0036] Specifically, the incubation guide support 2 includes a connecting part and a sliding part; In a preferred embodiment, the connecting part and the sliding part are integrally connected.

[0037] The connecting part is fixedly connected to the incubation support of the sample analyzer; The sliding part is provided with the through groove 10, and the sliding part is provided with a through hole on the side opposite to the connecting part. The guide shaft 8 passes through the through hole and is connected to one end of the connecting part. Specifically, the guide shaft 8 is made of stainless steel, and its surface roughness is very low to ensure smooth sliding.

[0038] In a preferred embodiment, the sliding part has a first threaded hole on the side adjacent to the guide shaft 8, and a set screw 75 passes through the first threaded hole to fix the guide shaft 8.

[0039] In a preferred embodiment, the connecting part is provided with a second threaded hole at the through groove 10, the second threaded hole and the through hole are located in the same axial direction, and the guide shaft 8 is provided with a thread that matches the second threaded hole at one end connected to the connecting part.

[0040] The guide shaft 8 extends from the end of the incubation guide support 2 and has screw holes 5.

[0041] As a preferred embodiment, combined with Figure 1 As shown, the elastic device includes an elastic element and a cover plate 4; One end of the elastic element is connected to the bottom of the wedge-shaped guide 3, and the other end is connected to the cover plate 4. The cover plate 4 is fixedly connected to the bottom of the incubation guide support 2, thus closing one end of the through groove 10.

[0042] In a preferred embodiment, the cover plate 4 is connected to the bottom of the incubation guide support 2 by screws 5.

[0043] Specifically, the elastic element is spring 6.

[0044] The cover plate 4 and the wedge block guide 3 are provided with countersunk holes, and the spring 6 is connected in the countersunk holes.

[0045] Based on the device structure described in this embodiment, the needle roller bearing support 1 and the wedge-shaped guide 3 are mutually supported by inclined planes and have a sliding fit. The needle roller bearing support 1 can slide horizontally through two guide shafts 8, and the wedge-shaped guide 3 has a sliding fit with a rectangular through hole, allowing it to slide up and down within the hole. The bottom of the wedge-shaped guide 3 is supported by a spring 6. In the entire mechanism, the supporting force of the spring 6 on the wedge-shaped guide 3 is in the vertical direction, such as... Figure 3 As shown, gear 11 has two rigid fixed positioning bearings 13 and one spring flexible fixed bearing 14 on its inner side. After the needle roller bearing 9 support and the wedge block guide 3 transmit force through the inclined plane, the vertical force is changed into the horizontal sliding force of the needle roller bearing 9 support, which is then transmitted to the needle roller bearing 9, i.e., to the spring flexible fixed bearing 14, to provide support force for gear 11. When gear 11 rotates, the device uses spring 6 to move the needle roller bearing 9 inward or outward according to the actual size of the inner ring of the mating gear 11, adjusting the position of bearing 12 in real time, and continuously providing a stable constraint force to ensure the smooth operation of gear 11.

[0046] Example 2 Embodiment 2 of this utility model discloses a sample analysis device, which includes an incubation support, an incubation tank, a colorimetric cup, a colorimetric cup ring, a gear 11, and the incubation gear mounting and positioning device described in Embodiment 1 above. The incubation tank is disposed on the incubation support, the colorimetric cup is disposed on the incubation tank, the colorimetric cup is connected to the colorimetric cup ring, and the gear 11 is disposed between the colorimetric cup ring and the incubation support; The top of the needle roller bearing support 1 is provided with a needle roller bearing 9, and the outer side of the needle roller bearing 9 is connected to the inner side of the gear 11.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for mounting and positioning incubation gears, characterized in that, This includes incubation guide support components, needle roller bearing support components, wedge block guide components, guide shafts, and elastic devices; The incubation guide support is provided with a through groove, and the needle roller bearing support and the wedge block guide are placed in the through groove; The guide shaft is placed in the through groove and extends horizontally through the needle roller bearing support. The dimension of the needle roller bearing support along the direction of the guide shaft is smaller than that of the through groove. The wedge-shaped guide is adapted to the size of the through groove, and the wedge-shaped guide is slidably connected along the longitudinal direction of the through groove; The bottom of the needle roller bearing support is provided with a first inclined surface, and the top of the wedge block guide is provided with a second inclined surface that is adapted to slide with the first inclined surface. The first inclined surface and the second inclined surface are slidably connected. The elastic device is fixedly connected to the bottom of the incubation guide support, and the elastic part is connected to the bottom of the wedge block guide.

2. The incubation gear mounting and positioning device according to claim 1, characterized in that, The incubation guide support includes a connecting part and a sliding part; The connecting part is fixedly connected to the incubation support of the sample analyzer; The sliding part is provided with the through groove, and the sliding part is provided with a through hole on the side opposite to the connecting part. The guide shaft passes through the through hole and is connected to one end of the connecting part.

3. The incubation gear mounting and positioning device according to claim 2, characterized in that, The connecting part and the sliding part are integrally connected.

4. The incubation gear mounting and positioning device according to claim 3, characterized in that, The sliding part has a first threaded hole on the side adjacent to the guide shaft, and a set screw passes through the first threaded hole to fix the guide shaft.

5. The incubation gear mounting and positioning device according to claim 3, characterized in that, The connecting part is provided with a second threaded hole at the through groove. The second threaded hole and the through hole are located in the same axial direction. The guide shaft is provided with a thread that is adapted to the second threaded hole at one end connected to the connecting part.

6. The incubation gear mounting and positioning device according to claim 5, characterized in that, The guide shaft extends from the end of the incubation guide support and has screw holes.

7. The incubation gear mounting and positioning device according to claim 1, characterized in that, The elastic device includes an elastic element and a cover plate; One end of the elastic element is connected to the bottom of the wedge-shaped guide element, and the other end is connected to the cover plate, which is fixedly connected to the bottom of the incubation guide support element.

8. The incubation gear mounting and positioning device according to claim 7, characterized in that, The cover plate is attached to the bottom of the incubation guide support by screws.

9. The incubation gear mounting and positioning device according to claim 7, characterized in that, The cover plate and the wedge-shaped guide are provided with countersunk holes, and the elastic element is connected in the countersunk holes.

10. A sample analysis device, characterized in that, Includes an incubation support, an incubation tank, a colorimeter, a colorimeter ring, a gear, and an incubation gear mounting and positioning device as described in any one of claims 1-9; The incubation tank is disposed on the incubation support, the colorimetric cup is disposed on the incubation tank, the colorimetric cup is connected to the colorimetric cup ring, and the gear is disposed between the colorimetric cup ring and the incubation support; The top of the needle roller bearing support is provided with a needle roller bearing, and the outer side of the needle roller bearing is connected to the inner side of the gear.

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