Position adjustment mechanism and core sample cutting device

Abstract

The present invention discloses a position adjustment mechanism and a core sample cutting device, comprising an adjustment seat, a first drive assembly, a second drive assembly, a transmission assembly, and a moving assembly. The adjustment seat is equipped with the first drive assembly and the second drive assembly, the transmission assembly is arranged between the first drive assembly and the second drive assembly, and the transmission assembly is respectively connected to the first drive assembly and the second drive assembly, the transmission assembly is connected to the moving assembly, and the moving assembly is equipped with a clamping assembly; wherein, when the first drive assembly and the second drive assembly are working simultaneously, the clamping assembly can be driven to move in the x-axis direction by the transmission assembly, and when the first drive assembly or the second drive assembly is working alone, the clamping assembly can be driven to move in the y-axis direction by the transmission assembly. The present invention can ensure the consistency of the length of the core sample after cutting. The present invention can fix the core sample to be cut by the simultaneous operation of the first drive assembly and the second drive assembly, thereby improving the cutting efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of core sample cutting devices, and in particular relates to a position adjustment mechanism and a core sample cutting device. Background Art

[0002] After long-term use, existing asphalt pavements experience a decline in performance and gradual material degradation, a key manifestation of which is modulus degradation. Studies have shown that the modulus of asphalt mixtures can decay to 20%-50% of that of new mixtures after long-term use. However, this conclusion is primarily based on long-term aging tests conducted in indoor environments, and the extent of modulus degradation in each structural layer under actual operating conditions remains unclear. This is because existing modulus testing primarily measures the modulus of the entire pavement structure, which, limited to a thickness of 4-6 cm, prevents testing the modulus of individual structural layers. To address this issue, the inventors have proposed a small-scale core sample testing method.

[0003] During the preparation of the test piece, this method requires cutting the core sample and ensuring that the cutting surface is flat. Authorization announcement number CN216266893U discloses a core sample cutting device, including a shell, a loading platform arranged on the shell, and a fixing seat arranged on the loading platform. A screw is passed through the fixing seat, and the screw is threadedly engaged with the fixing seat. An abutment seat is also provided on the loading platform and on one side of the fixing seat. The end of the screw close to the abutment seat is rotatably connected to a clamping plate, and the clamping plate is provided with an arched clamping cavity on the side facing the abutment seat.

[0004] The drawback is that when using the core cutting device to cut specimens, the clamping plate is moved by a screw to abut the core sample to be cut against one side of the abutment seat. The position of the core sample needs to be manually adjusted to ensure the consistency of the cut core sample length, which can easily cause the prepared specimens to fail to meet the test requirements. Therefore, a core cutting fixture is urgently needed to solve the above problems. Summary of the Invention

[0005] In view of the technical problems in the prior art that manually adjusting the position of the core sample cannot well ensure the consistency of the core sample length after cutting, and easily causes the prepared specimens to fail to meet the test requirements, the present invention provides a position adjustment mechanism and a core sample cutting device. The present invention has an adjustment seat installed in the shell, and the first drive component and the second drive component work simultaneously to drive the clamping component to move in the x-axis direction. When the first drive component or the second drive component works alone, the clamping component can be driven to move in the y-axis direction, so that the x-axis direction (horizontal) position of the clamping component can be adjusted to fix and clamp the core sample, thereby ensuring the consistency of the length of the core sample after cutting. At the same time, the present invention can fix the core sample to be cut by the first drive component and the second drive component working simultaneously, and the cutting efficiency is high.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A position adjustment mechanism includes an adjustment seat, a first drive assembly, a second drive assembly, a transmission assembly, and a moving assembly. The adjustment seat is equipped with the first drive assembly and the second drive assembly. The transmission assembly is arranged between the first drive assembly and the second drive assembly, and the transmission assembly is respectively connected to the first drive assembly and the second drive assembly. The transmission assembly is in transmission connection with the moving assembly, and the moving assembly is equipped with a pressing assembly.

[0008] Among them, when the first drive component and the second drive component work simultaneously, the clamping component can be driven to move in the x-axis direction through the transmission component, and when the first drive component or the second drive component works alone, the clamping component can be driven to move in the y-axis direction through the transmission component.

[0009] Furthermore, the first drive assembly and the second drive assembly each include a drive motor, a mounting plate installed on the adjustment seat, and a screw rod. The screw rods of the first drive assembly and the second drive assembly are arranged parallel to each other, and the two drive motors are respectively arranged at the diagonals of the adjustment seat. The mounting plates are rotatably installed at both ends of the screw rod, and one end of the screw rod is connected to the output end of the drive motor.

[0010] Furthermore, the transmission assembly includes a first gear and a second gear fixed on the upper part of the first gear, the first gear is respectively engaged with the screw rods of the first drive assembly and the second drive assembly, and the second gear is in transmission cooperation with the moving assembly.

[0011] Furthermore, the moving component includes two slide rails, a first sliding frame slidably connected to the two slide rails, and a second sliding frame slidably connected to the first sliding frame. The two slide rails are respectively arranged along the screw rod direction of the first drive assembly and the second drive assembly, and the sliding ends are respectively fixed on the mounting plates of the first drive assembly and the second drive assembly. The second sliding frame is cooperated with the second gear, and the second sliding frame can slide perpendicular to the length direction of the slide rails.

[0012] Furthermore, two sliding bars corresponding to the sliding rails are fixedly provided at the lower portion of the first sliding frame, and the sliding bars are slidably connected to the sliding rails.

[0013] Furthermore, the inner wall of the second sliding frame has bar teeth, the bar teeth are distributed in a direction perpendicular to the slide rail, and the bar teeth are engaged with the second gear.

[0014] Furthermore, the clamping assembly includes a connecting plate, a screw and a clamping plate. Fixed plates are fixed on both sides of the connecting plate. The fixed plates are fixed to both sides of the second sliding frame. The clamping plate is threadedly connected to the screw through a threaded hole opened in the middle. One end of the screw is rotatably connected to the clamping plate.

[0015] On the other hand, the present invention also requests protection for a core sample cutting device, comprising an outer shell and any of the above-mentioned position adjustment mechanisms, wherein the adjustment seat is provided in the outer shell, and a baffle corresponding to the pressing plate is installed on one side of the adjustment seat, and the core sample to be cut is placed between the pressing plate and the baffle, and a cutting disk is also installed in the outer shell, and the cutting disk is located above the adjustment seat, and the cutting disk is used to cut the core sample to be cut.

[0016] Furthermore, a clamping cavity with an arched structure is provided on the side of the pressing plate facing the baffle.

[0017] Compared with the prior art, the beneficial effects of this solution are:

[0018] 1. The core sample cutting device of the present invention is equipped with a position adjustment device in a housing, including an adjustment seat, a first drive assembly, a second drive assembly, a transmission assembly, and a moving assembly. When the first drive assembly and the second drive assembly of the present invention are working simultaneously, the transmission assembly will move, and at this time, the pressing assembly can be driven to move in the x-axis direction by the transmission assembly. When the first drive assembly or the second drive assembly is working alone, the transmission assembly will rotate, and at this time, the pressing assembly can be driven to move in the y-axis direction by the transmission assembly.

[0019] 2. The present invention replaces the existing core sample cutting device which needs to manually rotate the screw so that the clamping plate connected to the end of the screw close to the abutment seat is rotated and moved close to the abutment seat. The technical solution of the present invention can still clamp core samples of different lengths well, the fixed position is adjustable, the clamping is reliable, and the rotation or movement of the core sample is avoided. The cutting plane is regular, and the prepared specimen meets the test requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an existing core sample cutting device;

[0021] Figure 2 Schematic diagram of the position adjustment mechanism structure of the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 It is a schematic structural diagram of the compression assembly of the present invention.

[0024] The reference numerals are:

[0025] Housing 1, cutting disc 11, position adjustment mechanism 2, adjustment seat 21, baffle 211, first drive assembly 22, drive motor 221, mounting plate 222, screw 223, first gear 23, second gear 24, moving assembly 25, slide rail 251, first sliding frame 252, second sliding frame 253, bar teeth 254, clamping assembly 26, connecting plate 261, screw 262, clamping plate 263, fixing plate 264. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, the existing core sample cutting device has a loading platform installed on the inner bottom of the shell 1, and a fixing seat is installed on the loading platform. A screw 262 is passed through the fixing seat, and the screw 262 is threadedly matched with the fixing seat. An abutment seat is also provided on the loading platform and on one side of the fixing seat. When in use, the screw 262 is manually rotated so that the clamping plate connected to the end of the screw 262 close to the abutment seat is rotated and moved close to the abutment seat, thereby clamping and fixing the core sample to be cut. The screw 262 and the fixing seat cannot move along the length direction of the core sample (the core sample is placed horizontally in the clamping cavity of the clamping plate), so core samples of different lengths cannot be clamped well. Specifically, when a shorter core sample needs to be cut, it can only be fixed at the tail end of the core sample. The core sample is easy to rotate or move, resulting in an irregular cutting plane, which easily causes the prepared specimen to fail to meet the test requirements.

[0028] Based on the above requirements, the present invention makes improvements on the existing core sample cutting device. The present invention provides a position adjustment mechanism 2, such as Figure 2-Figure 4 As shown, it includes an adjustment seat 21, a first drive assembly 22, a second drive assembly, a transmission assembly and a moving assembly 25. The adjustment seat 21 is installed with the first drive assembly 22 and the second drive assembly. The transmission assembly is arranged between the first drive assembly 22 and the second drive assembly, and the transmission assembly is respectively connected to the first drive assembly 22 and the second drive assembly. The transmission assembly is transmission-connected to the moving assembly 25, and the moving assembly 25 is installed with a pressing assembly 26;

[0029] Among them, when the first drive component 22 and the second drive component work simultaneously, the clamping component 26 can be driven to move in the x-axis direction through the transmission component, and when the first drive component 22 or the second drive component works alone, the clamping component 26 can be driven to move in the y-axis direction through the transmission component.

[0030] According to a specific embodiment provided by the present invention, the function of the adjustment seat 21 is installation, so this embodiment does not limit the specific structure of the adjustment seat 21. The adjustment seat 21 can be a rectangular structure. The first drive assembly 22 and the second drive assembly are installed on the upper part of the adjustment seat 21. The first drive assembly 22 and the second drive assembly are arranged along the length direction of the adjustment seat 21, so that it is convenient for the core sample to be cut to be placed in and taken out vertically from the shell 1. The transmission assembly is arranged between the first drive assembly 22 and the second drive assembly. The transmission assembly is connected to the moving assembly 25. When the first drive assembly 22 and the second drive assembly work simultaneously, the transmission assembly will move. At this time, the pressing assembly 26 can be driven by the transmission assembly to move in the x-axis direction. The x-axis direction is parallel to the inner wall of the shell 1, that is, the direction of clamping and fixing the core sample to be cut. When the first drive assembly 22 or the second drive assembly works alone, the transmission assembly will rotate. At this time, the pressing assembly 26 can be driven by the transmission assembly to move in the y-axis direction. The y-axis direction is perpendicular to the x-axis.

[0031] Furthermore, each of the first drive assembly 22 and the second drive assembly includes a drive motor 221, a mounting plate 222 mounted on the adjustment seat 21, and a screw rod 223. The screw rods 223 of the first drive assembly 22 and the second drive assembly are arranged parallel to each other, and the two drive motors 221 are respectively located at diagonals of the adjustment seat 21. The mounting plates 222 are rotatably mounted on both ends of the screw rod 223, and one end of the screw rod 223 is connected to the output end of the drive motor 221. The transmission assembly includes a first gear 23 and a second gear 24 fixed on the upper portion of the first gear 23. The first gear 23 is meshed with the screw rods 223 of the first drive assembly 22 and the second drive assembly, respectively, and the second gear 24 is in transmission cooperation with the moving assembly 25.

[0032] According to a specific embodiment provided by the present invention, this embodiment provides a specific structure of a first drive component 22 and a second drive component, that is, the screw rods 223 of the first drive component 22 and the second drive component are arranged parallel to each other and are respectively located on both sides of the adjustment seat 21, and the two drive motors 221 are respectively opposite to the diagonals of the adjustment seat 21, and the mounting plate 222 is welded and fixed perpendicular to the surface of the adjustment seat 21. Bearings are rotatably installed at both ends of the screw rod 223, and the bearings are installed in the through holes of the corresponding mounting plate 222. One end of the screw rod 223 is connected to the output end of the drive motor 221, and the drive motor 221 is installed on the adjustment seat 21.

[0033] In this embodiment, the transmission assembly includes a first gear 23, which is horizontally placed between the two screw rods 223 and meshed with the screw rods 223 respectively. The gear rod extending from the upper part of the first gear 23 is fixed to the second gear 24, and the second gear 24 is in transmission cooperation with the moving assembly 25. In this way, when the two drive motors 221 are working, the rotation of the screw rod 223 can drive the first gear 23 to rotate, so that the power is transmitted to the moving assembly 25 through the second gear 24, and the pressing assembly 26 is driven by the moving assembly 25 to move closer to or away from the core sample to be cut; when only a single drive motor 221 is working, the non-working drive motor 221 and the screw rod 223 at its output end are stationary, so that the first gear 23 can rotate clockwise or counterclockwise instead of moving.

[0034] Furthermore, the moving assembly 25 includes two slide rails 251, a first slide frame 252 slidably connected to the two slide rails 251, and a second slide frame 253 slidably connected to the first slide frame 252. The two slide rails 251 are respectively arranged along the direction of the screw rods 223 of the first drive assembly 22 and the second drive assembly, with their sliding ends respectively fixed to the mounting plates 222 of the first drive assembly 22 and the second drive assembly. The second slide frame 253 is cooperatively connected to the second gear 24 and can slide perpendicular to the length of the slide rails 251. The inner wall of the second slide frame 253 has bar teeth 254, which are distributed in a direction perpendicular to the slide rails 251 and mesh with the second gear 24.

[0035] According to a specific embodiment provided by the present invention, when the first sliding frame 252 slides relative to the two sliding rails 251, it can drive the clamping plate 263 to clamp and fix the core sample to be cut. When the second sliding frame 253 slides relative to the first sliding frame 252, the clamping plate 263 can be moved closer to the cutting disk 11 or away from the cutting disk 11 (parallel to the length direction of the core sample). In this way, the position of the clamping plate 263 can be adjusted according to core samples of different lengths, so that the position of the fixed core sample can be adjusted.

[0036] In practice, the two slide rails 251 can be arranged parallel to each other, with V-shaped grooves defined on opposing sides of the two slide rails 251. Two sliding bars are fixed to the lower portion of the first slide frame 252, corresponding to the V-shaped grooves of the slide rails 251. The sliding bars are slidably connected to the slide rails 251. The inner wall of the second slide frame 253 has bar-shaped teeth 254, which are arranged perpendicular to the slide rails 251 and mesh with the second gear 24. This allows the first gear 23 to rotate clockwise or counterclockwise instead of moving, thereby driving the second slide frame 253 to move along the length of the cut.

[0037] The first sliding frame 252 has two parallel sliding bars fixed at the bottom, and two parallel mounting bars fixed at the top of the sliding bars. The mounting bars and the sliding bars are arranged perpendicular to each other. The second sliding frame 253 is a frame-shaped structure, and the second sliding frame 253 can be located between the two mounting bars.

[0038] Furthermore, the clamping assembly 26 includes a connecting plate 261, a screw 262 and a clamping plate 263. Fixed plates 264 are fixed on both sides of the connecting plate 261. The fixed plates 264 are fixed to both sides of the second sliding frame 253. The clamping plate 263 is threadedly connected to the screw 262 through a threaded hole opened in the middle. One end of the screw 262 is rotatably connected to the clamping plate 263.

[0039] According to a specific embodiment of a clamping assembly 26 provided by the present invention, it includes a connecting plate 261, a screw 262 and a clamping plate 263. The connecting plate 261 is arranged perpendicular to the adjustment seat 21. This embodiment does not limit the shape of the connecting plate 261 and the fixed plate 264. The connecting plate 261 can be a square plate structure. The fixed plate 264 is fixed on the two sides of the connecting plate 261. The fixed plate 264 has a plane with a threaded hole. The fixed plate 264 is welded and fixed to the connecting plate 261. The fixed plate 264 is connected and fixed to the upper part of both sides of the second sliding frame 253 by bolts.

[0040] On the other hand, the present invention also requests protection for a core sample cutting device, including a shell 1. The shell 1 of the present invention is a hollow structure with one side open, and also includes any of the above-mentioned position adjustment mechanisms 2. The adjustment seat 21 is provided in the shell 1, and a baffle 211 corresponding to the clamping plate 263 is installed on one side of the adjustment seat 21. The core sample to be cut is placed between the clamping plate 263 and the baffle 211. A cutting disk 11 is also installed on the inner wall of the shell 1. The cutting disk 11 is located above the adjustment seat 21, and the cutting disk 11 is used to cut the core sample to be cut.

[0041] In this embodiment, the two slide rails 251 are respectively along the length direction of the screw rod 223 of the first drive component 22 and the second drive component, which is the length direction of the shell 1. The screw rod 262 of the present invention is threadedly connected to the connecting plate 261. The screw rod 262 can be rotated according to the size of the core sample to be cut to adjust the distance between the clamping plate 263 and the baffle 211.

[0042] Furthermore, a clamping cavity with an arched structure is provided on one side of the pressing plate 263 facing the baffle 211 , and the curvature of the clamping cavity can be set according to the size of the core sample.

[0043] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0044] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A position adjustment mechanism, characterized in that: The invention comprises an adjustment seat, a first drive assembly, a second drive assembly, a transmission assembly and a moving assembly. The adjustment seat is equipped with the first drive assembly and the second drive assembly. The transmission assembly is arranged between the first drive assembly and the second drive assembly, and the transmission assembly is respectively connected with the first drive assembly and the second drive assembly. The transmission assembly is connected with the moving assembly in a transmission manner, and the moving assembly is equipped with a pressing assembly. Wherein, when the first drive assembly and the second drive assembly work simultaneously, the pressing assembly can be driven to move in the x-axis direction through the transmission assembly, and when the first drive assembly or the second drive assembly works alone, the pressing assembly can be driven to move in the y-axis direction through the transmission assembly; The first drive assembly and the second drive assembly each include a drive motor, a mounting plate mounted on the adjustment seat, and a screw rod. The screw rods of the first drive assembly and the second drive assembly are arranged parallel to each other, and the two drive motors are respectively opposite to each other at the diagonals of the adjustment seat. The mounting plates are rotatably mounted on both ends of the screw rod, and one end of the screw rod is connected to the output end of the drive motor. The transmission assembly includes a first gear and a second gear fixed on the upper part of the first gear, the first gear is respectively engaged with the screw rods of the first driving assembly and the second driving assembly, and the second gear is in transmission cooperation with the moving assembly; The moving assembly includes two slide rails, a first sliding frame slidably connected to the two slide rails, and a second sliding frame slidably connected to the first sliding frame, the two slide rails are respectively arranged along the screw rod direction of the first drive assembly and the second drive assembly, and the sliding ends are respectively fixed to the mounting plates of the first drive assembly and the second drive assembly, the second sliding frame is matched with the second gear, and the second sliding frame can slide perpendicular to the length direction of the slide rails; The inner wall of the second sliding frame has bar teeth, the bar teeth are distributed in a direction perpendicular to the sliding rail, and the bar teeth are engaged with the second gear.

2. A position adjustment mechanism according to claim 1, characterized in that: Two sliding bars corresponding to the sliding rails are fixed at the lower part of the first sliding frame, and the sliding bars are slidably connected to the sliding rails. The first sliding frame has two sliding bars parallel to each other fixed at the lower part, and two mounting bars parallel to each other fixed at the upper part of the sliding bars. The mounting bars and the sliding bars are arranged perpendicular to each other, and the second sliding frame is located between the two mounting bars.

3. A position adjustment mechanism according to any one of claims 1 to 2, characterized in that: The clamping assembly includes a connecting plate, a screw and a clamping plate. Fixed plates are fixed on both sides of the connecting plate. The fixed plates are fixed to both sides of the second sliding frame. The clamping plate is threadedly connected to the screw through a threaded hole opened in the middle. One end of the screw is rotatably connected to the clamping plate.

4. A core cutting device, including a housing, characterized in that: It also includes a position adjustment mechanism according to any one of claims 1 to 3, wherein the adjustment seat is provided in the outer shell, a baffle corresponding to the clamping plate is installed on one side of the adjustment seat, and the core sample to be cut is placed between the clamping plate and the baffle, and a cutting disk is also installed in the outer shell, and the cutting disk is located above the adjustment seat, and the cutting disk is used to cut the core sample to be cut.

5. The core sample cutting device according to claim 4, characterized in that: A clamping cavity with an arched structure is provided on one side of the pressing plate facing the baffle.

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