Lifting mechanism and pure water nonvolatile matter testing system

Abstract

The utility model provides a lifting mechanism and a pure water non-volatile matter testing system. A first driving mechanism is connected with a bottom plate or a first supporting frame, and a second driving mechanism is connected with the bottom plate or a second supporting frame; the output end of the first driving mechanism penetrates through a through hole in the first supporting frame and then is connected with the first end of the bearing frame. The output end of the second driving mechanism penetrates through a through hole in the second supporting frame and then is connected with the second end of the bearing frame. The first supporting frame is connected with at least one first guide shaft, the first guide shaft sequentially penetrates through a first linear bearing fixed to the bearing frame and a through hole formed in the first end of the bearing frame, and the second supporting frame is connected with at least one second guide shaft. The second guide shaft sequentially penetrates through a second linear bearing fixed to the bearing frame and a through hole formed in the second end of the bearing frame. According to the utility model, the output rod of the driving mechanism is ensured to be in the optimal working state of only bearing the axial force.

Description

Technical Field

[0001] The utility model relates to the technical field of pure water non-volatile matter testing, in particular to a lifting mechanism and a pure water non-volatile matter testing system. Background Art

[0002] The statements in this section merely provide background technology related to the present invention and do not necessarily constitute prior art.

[0003] The principle of the non-volatile matter test of pure water is to evaporate a certain volume of pure water on a water bath, dry it in an oven and cool it at room temperature, and then measure the quality of the non-volatile solid obtained. The traditional test method has the disadvantages of low efficiency and the need for manual supervision.

[0004] In order to realize automated testing, currently, an integrated approach is often used to realize integrated testing of automatic feeding, water bath evaporation, air drying, cooling balance and constant temperature weighing; for example, CN219935577U discloses a total migration tester, which realizes automated testing by adopting a design form of a test chamber, a water bath, a lifting and rotating mechanism, a turntable, a ventilation and heating mechanism and a weighing mechanism;

[0005] However, the inventors found that the current lifting and rotating mechanisms are mostly used to achieve the lifting and lowering of the water bath and the rotation of the turntable in the water bath, and do not achieve the lifting and lowering control of the support frame for the top sealing cover assembly of the water bath and the evaporating dish clamp. The water bath in a confined space is difficult to clean and maintain, and cannot meet the daily maintenance needs during use. Moreover, the drive mechanism without a guide shaft is also prone to lateral force, which may damage the internal components of the drive mechanism and shorten its service life. Utility Model Content

[0006] In order to solve the deficiencies of the prior art, the utility model provides a lifting mechanism and a pure water non-volatile matter testing system, which realize stable lifting control of a carrier frame for carrying a top sealing cover assembly and an evaporating dish clamp, ensure that the output rod of the driving mechanism is in an optimal working state of only bearing axial force, improve the working stability and working life of the driving mechanism, and avoid damage to internal components of the driving mechanism.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] In a first aspect, the utility model provides a lifting mechanism.

[0009] A lifting mechanism, comprising: a bottom plate and a first support frame and a second support frame respectively connected to the bottom plate, a first driving mechanism connected to the bottom plate or the first support frame, a second driving mechanism connected to the bottom plate or the second support frame, and driving directions of the first driving mechanism and the second driving mechanism are both perpendicular to the upper surface of the bottom plate;

[0010] The output end of the first driving mechanism passes through a through hole on the first supporting frame and is connected to the first end of the supporting frame, and the output end of the second driving mechanism passes through a through hole on the second supporting frame and is connected to the second end of the supporting frame;

[0011] At least one first guide shaft is connected to the first support frame, and the first guide shaft passes through the first linear bearing fixed on the support frame and the through hole opened at the first end of the support frame in sequence. At least one second guide shaft is connected to the second support frame, and the second guide shaft passes through the second linear bearing fixed on the support frame and the through hole opened at the second end of the support frame in sequence.

[0012] As a further limitation of the first aspect of the utility model, the through hole on the first support frame is located in the middle position of the first support frame.

[0013] As a further limitation of the first aspect of the utility model, the first guide shafts include two, and the two first guide shafts are symmetrically arranged on the first support frame along the center line of the through hole of the first support frame.

[0014] As a further limitation of the first aspect of the utility model, a middle portion of the first support frame protrudes upward to form a first protrusion, and the through hole on the first support frame is located on the first protrusion.

[0015] As a further limitation of the first aspect of the utility model, the first driving mechanism is a pneumatic cylinder, an electric cylinder, an oil cylinder or a gear rack linear motion mechanism.

[0016] As a further limitation of the first aspect of the utility model, the through hole on the second support frame is located in the middle position of the second support frame.

[0017] As a further limitation of the first aspect of the utility model, the second guide shafts include two, and the two second guide shafts are symmetrically arranged on the second support frame along the center line of the through hole of the second support frame.

[0018] As a further limitation of the first aspect of the utility model, the middle position of the second support frame protrudes upward to form a second protrusion, and the through hole on the second support frame is located on the second protrusion.

[0019] As a further limitation of the first aspect of the utility model, the second driving mechanism is a pneumatic cylinder, an electric cylinder, an oil cylinder or a gear rack linear motion mechanism.

[0020] In a second aspect, the utility model provides a pure water non-volatile matter testing system.

[0021] A pure water non-volatile matter testing system, comprising: a box, a weighing device, a water bath module, a water bath sealing module and the lifting mechanism described in the first aspect of the utility model, wherein the weighing device, the water bath module, the water bath sealing module and the lifting mechanism are all located in a closed cavity formed by the box and a bottom plate, and an exhaust device and a filter connected to the inner space of the closed cavity are arranged on the box;

[0022] The water bath sealing module is connected to the supporting frame.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] 1. The utility model innovatively develops a lifting mechanism for pure water non-volatile test, which realizes the stable lifting control of the carrier frame for carrying the top sealing cover assembly and the evaporating dish clamp. The guide shaft is used for the driving mechanism to bear the radial force of the carrier frame during the rising and falling process, ensuring that the output rod of the driving mechanism is in the best working state of only bearing the axial force, improving the working stability and service life of the driving mechanism, and avoiding damage to the internal components of the driving mechanism.

[0025] 2. The utility model innovatively develops a lifting mechanism for pure water non-volatile testing, the through hole on the first support frame is located in the middle position of the first support frame, and multiple first guide shafts are symmetrically arranged on the first support frame along the center line of the through hole of the first support frame, the through hole on the second support frame is located in the middle position of the second support frame, and multiple second guide shafts are symmetrically arranged on the second support frame along the center line of the through hole of the second support frame, thereby achieving more stable lifting control.

[0026] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0028] Figure 1 A schematic diagram of a lifting mechanism provided in Example 1 of the utility model;

[0029] Figure 2 A schematic diagram of a pure water non-volatile matter testing system provided in Example 2 of the utility model;

[0030] Among them, 1. bottom plate; 2. first support frame; 3. first driving mechanism; 4. first guide shaft; 5. first linear bearing; 6. support frame; 7. second support frame; 8. second driving mechanism; 9. second guide shaft; 10. second linear bearing; 201. lifting mechanism; 202. box; 203. weighing device; 204. water bath module; 205. water bath sealing module. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0032] It should be noted that the following detailed descriptions are exemplary and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] In the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0034] Embodiment 1:

[0035] like Figure 1 As shown, Embodiment 1 of the utility model provides a lifting mechanism, including: a bottom plate 1 and a first support frame 2 and a second support frame 7 respectively connected to the bottom plate 1, a first driving mechanism 3 connected to the bottom plate 1 or to the first support frame 2, a second driving mechanism 8 connected to the bottom plate 1 or to the second support frame 7, and the driving directions of the first driving mechanism 3 and the second driving mechanism 8 are both perpendicular to the upper surface of the bottom plate 1;

[0036] The output end of the first driving mechanism 3 passes through the through hole on the first support frame 2 and is connected to the first end of the support frame 6, and the output end of the second driving mechanism 8 passes through the through hole on the second support frame 7 and is connected to the second end of the support frame 6, so that the support frame can slide up and down relative to the first support member and the second support member;

[0037] At least one first guide shaft 4 is connected to the first support frame, and the first guide shaft 4 passes through the first linear bearing 5 fixed on the support frame 6 and the through hole opened at the first end of the support frame 6 in sequence; at least one second guide shaft 9 is connected to the second support frame, and the second guide shaft 9 passes through the second linear bearing 10 fixed on the support frame 6 and the through hole opened at the second end of the support frame 6 in sequence.

[0038] In this embodiment, preferably, the through hole on the first support frame 2 is located in the middle of the first support frame 2 .

[0039] In this embodiment, preferably, the first guide shafts 4 include two, and the two first guide shafts 4 are symmetrically arranged on the first support frame 2 along the center line of the through hole of the first support frame 2 .

[0040] In this embodiment, preferably, the middle position of the first support frame 2 protrudes upward to form a first protrusion, and the through hole on the first support frame 2 is located on the first protrusion.

[0041] It is understandable that in some other implementations, the number of the first guide shafts 4 may be more, such as three or four, etc., and those skilled in the art may make settings based on stability considerations.

[0042] In this embodiment, preferably, the first driving mechanism 3 is a pneumatic cylinder, an electric cylinder, an oil cylinder or a gear rack linear motion mechanism.

[0043] In this embodiment, preferably, the through hole on the second support frame 7 is located in the middle position of the second support frame 7 .

[0044] In this embodiment, preferably, the second guide shafts 9 include two, and the two second guide shafts 9 are symmetrically arranged on the second support frame 7 along the center line of the through hole of the second support frame 7 .

[0045] In this embodiment, preferably, the middle position of the second support frame 7 protrudes upward to form a second protrusion, and the through hole on the second support frame 7 is located on the second protrusion.

[0046] It is understandable that in some other implementations, the number of the second guide shafts 9 may be more, such as three or four, etc., and those skilled in the art may make settings based on stability considerations.

[0047] In this embodiment, preferably, the second driving mechanism 8 is a pneumatic cylinder, an electric cylinder, an oil cylinder or a gear rack linear motion mechanism.

[0048] In this embodiment, preferably, the first linear bearing 5 and the second linear bearing 10 can be ball linear bearings, copper sleeves, oil-free bushings or linear ball bearings, etc.

[0049] In this embodiment, the first driving mechanism 3 is fixed on the base plate 1 or the first support frame 2, and the second driving mechanism 8 is fixed on the base plate 1 or the second support frame 7. The first driving mechanism 3 and the second driving mechanism 8 telescope and drive the first linear bearing 5 and the second linear bearing 10 on the supporting frame 6 to move up and down along the first guide shaft 4 and the second guide shaft 9 respectively, thereby realizing the rising and falling of the supporting frame 6.

[0050] Embodiment 2:

[0051] Embodiment 2 of the present invention provides a pure water non-volatile matter testing system, comprising: a box body 202, a weighing device 203, a water bath module 204, a water bath sealing module 205 and the lifting mechanism 201 described in Embodiment 1 of the present invention, the weighing device 203, the water bath module 204, the water bath sealing module 205 and the lifting mechanism 201 are all located in a closed cavity formed by the box body 202 and the bottom plate 1, and an exhaust device and a filter connected to the internal space of the closed cavity are arranged on the box body 202; the water bath sealing module 205 is connected to the supporting frame 6.

[0052] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lifting mechanism, characterized in that: include: A bottom plate and a first support frame and a second support frame connected to the bottom plate respectively, a first driving mechanism connected to the bottom plate or the first support frame, a second driving mechanism connected to the bottom plate or the second support frame, and driving directions of the first driving mechanism and the second driving mechanism are both perpendicular to the upper surface of the bottom plate; The output end of the first driving mechanism passes through a through hole on the first supporting frame and is connected to the first end of the supporting frame, and the output end of the second driving mechanism passes through a through hole on the second supporting frame and is connected to the second end of the supporting frame; At least one first guide shaft is connected to the first support frame, and the first guide shaft passes through the first linear bearing fixed on the support frame and the through hole opened at the first end of the support frame in sequence. At least one second guide shaft is connected to the second support frame, and the second guide shaft passes through the second linear bearing fixed on the support frame and the through hole opened at the second end of the support frame in sequence.

2. The lifting mechanism according to claim 1, characterized in that: The through hole on the first supporting frame is located in the middle of the first supporting frame.

3. The lifting mechanism according to claim 2, characterized in that: The first guide shafts include two, and the two first guide shafts are symmetrically arranged on the first support frame along the center line of the through hole of the first support frame.

4. The lifting mechanism according to claim 2 or 3, characterized in that: The middle part of the first support frame protrudes upward to form a first protrusion, and the through hole on the first support frame is located on the first protrusion.

5. The lifting mechanism according to claim 1, characterized in that: The first driving mechanism is a pneumatic cylinder, an electric cylinder, an oil cylinder or a gear rack linear motion mechanism.

6. The lifting mechanism according to claim 1, characterized in that: The through hole on the second supporting frame is located in the middle of the second supporting frame.

7. The lifting mechanism according to claim 6, characterized in that: The second guide shafts include two, and the two second guide shafts are symmetrically arranged on the second support frame along the center line of the through hole of the second support frame.

8. The lifting mechanism according to claim 6 or 7, characterized in that: The middle part of the second support frame protrudes upward to form a second protrusion, and the through hole on the second support frame is located on the second protrusion.

9. The lifting mechanism according to claim 1, characterized in that: The second driving mechanism is a pneumatic cylinder, an electric cylinder, an oil cylinder or a gear rack linear motion mechanism.

10. A pure water non-volatile matter testing system, characterized in that: include: A box, a weighing device, a water bath module, a water bath sealing module, and a lifting mechanism according to any one of claims 1 to 9, wherein the weighing device, the water bath module, the water bath sealing module, and the lifting mechanism are all located in a closed cavity formed by the box and the bottom plate, and an exhaust device and a filter connected to the internal space of the closed cavity are arranged on the box; The water bath sealing module is connected to the supporting frame.

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