A portable field rock sample cutter

Abstract

The utility model relates to rock sampling technology field discloses a kind of field rock sample portable cutting machine, comprising: shell, driving motor is embedded and arranged in shell;With the fixed support of shell fixed connection, first rotating shaft is rotatably connected on fixed support, the output shaft of driving motor is connected with first rotating shaft transmission;With the sliding connection of shell movable support, second rotating shaft is rotatably connected on movable support, second rotating shaft is slidably connected with first rotating shaft along its axial direction and can rotate synchronously;Adjusting mechanism for adjusting the spacing between fixed support and movable support;And located at the both sides of fixed support and movable support, respectively with the flange connection of first rotating shaft and second rotating shaft two cutting wheels.The utility model sets up two cutting wheels at the both sides of fixed support and movable support, and there is no shelter in the outer end of two cutting wheels;When disassembling, just loosen flange bolt, and cutting piece can be directly replaced along axial direction, significantly reduce field downtime maintenance time.

Description

Technical Field

[0001] This utility model relates to the field of rock sampling technology, and in particular to a portable rock sample cutter for field use. Background Technology

[0002] Portable rock sample cutters are widely used in geological exploration, mineral exploration, engineering geological surveys, and scientific research and teaching. With the deepening of resource exploration and the increasing precision of geological surveys, field operations have placed higher demands on the rapid on-site acquisition of rock samples.

[0003] In the prior art, patent document CN220719859U, entitled "A Cutting Device Suitable for Cutting Irregular Rocks," discloses a rock cutting device suitable for field environments. This device employs a chain drive system, where a drive motor rotates a shaft, which in turn drives the cutting wheel to cut the rock. The chain drive structure is located on one side of the cutting wheel, transmitting power through the interaction of gears and the chain. Simultaneously, the spacing between the cutting wheels is adjustable via a slide bar and adjusting bolts to accommodate different cutting needs. However, this structure has significant drawbacks in practical applications: because the sprocket and chain are located on one side of the two cutting wheels, replacing the cutting wheel closer to the sprocket requires first disassembling the chain and sprocket assembly. Limited operating space makes the replacement process cumbersome and time-consuming, severely impacting field operation efficiency.

[0004] Therefore, in order to address the problems of inconvenient replacement and difficult maintenance of cutting wheels caused by the single-sided arrangement of sprockets in the existing technology, it is urgent to redesign the transmission structure, optimize the spatial layout of the cutting wheel and the transmission system, and improve the maintainability and replacement efficiency of the cutting wheel. Utility Model Content

[0005] The present invention aims to provide a portable rock sample cutter for field use to overcome the shortcomings mentioned above.

[0006] In order to achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A portable rock sample cutter for field use, comprising:

[0008] A housing, in which a drive motor is embedded;

[0009] A fixed bracket is fixedly connected to the housing, and a first rotating shaft is rotatably connected to the fixed bracket. The output shaft of the drive motor is drivenly connected to the first rotating shaft.

[0010] A movable bracket slidably connected to the housing, a second rotating shaft rotatably connected to the movable bracket, the second rotating shaft being slidably connected to the first rotating shaft along its axial direction and capable of rotating synchronously;

[0011] An adjusting mechanism for adjusting the distance between the fixed bracket and the movable bracket; and

[0012] Two cutting wheels located on both sides of the fixed bracket and the movable bracket and flange-connected to the first rotating shaft and the second rotating shaft respectively.

[0013] Further, the adjusting mechanism includes:

[0014] Two groups of first slide rails are fixedly connected to the opposite sides of the fixed bracket and the movable bracket. The first slide rails are arranged along the length direction of the fixed bracket. The cross-section of the first slide rails is a "C"-shaped structure, and the openings are arranged opposite to each other in pairs;

[0015] A scissor mechanism, which includes a scissor fork, a first connecting shaft and a sliding wheel. The scissor fork is a double-row structure, including two groups of connecting rods that cross each other. The two cross-set connecting rods are rotatably connected to each other at the cross point through the first connecting shaft. The ends of the two connecting rods along the length direction are rotatably connected end to end in sequence, and a sliding wheel is coaxially rotatably connected. The sliding wheel is in rolling connection with the first slide rail; and

[0016] A driving component for driving the scissor mechanism to expand and contract along its length direction.

[0017] Further, one end of the connecting rod close to the housing is rotatably connected to the first slide rail through a second connecting shaft.

[0018] Further, the driving component includes:

[0019] Connecting blocks are fixedly connected to the middle parts of the two first connecting shafts close to the housing; and

[0020] A screw rod, one end of which is rotatably connected to the connecting block farther away from the housing, and the middle part of which is threadedly connected to the connecting block closer to the housing.

[0021] Further, the driving component further includes:

[0022] A gear rack, on which a first bevel gear and a second bevel gear that are axially perpendicular and meshed with each other are rotatably arranged. The other end of the screw rod penetrates through the gear rack and is coaxially fixedly connected to the first bevel gear;

[0023] A first chute is arranged along the length direction on the end face of the fixed bracket close to the housing, and a sliding block is slidably connected to the first chute; and

[0024] A driving rod that movably penetrates through the sliding block, and one end of the driving rod penetrates through the gear rack and is coaxially fixedly connected to the second bevel gear. [[ID=四十二]]

[0025] Furthermore, a second slide rail is vertically fixedly connected to the fixed bracket near the housing, and the second slide rail is fixedly connected to the housing. A second slide groove is provided at one end of the movable bracket near the housing, and the second slide groove is slidably connected to the second slide rail.

[0026] Furthermore, a first sprocket is provided between the fixed bracket and the movable bracket, and the first sprocket is coaxially and fixedly connected to the first rotating shaft;

[0027] The output shaft of the drive motor is connected to a second sprocket, and the second sprocket and the first sprocket are connected by a chain drive.

[0028] Furthermore, the fixed bracket is integrally formed with a dust cover, which covers the periphery of the chain.

[0029] Furthermore, an operating handle is provided on the housing.

[0030] Furthermore, the first rotating shaft is a tubular structure with a third sliding groove on its inner sidewall, and the outer sidewall of the second rotating shaft is provided with a strip-shaped sliding protrusion, which is slidably connected to the third sliding groove.

[0031] Compared with the prior art, this utility model has at least the following advantages:

[0032] Existing technology places the chain and sprocket on one side of the cutting wheel. The cutting wheel near the sprocket is surrounded by layers of chain, sprocket, and dust cover, requiring the chain to be removed before the wheel pieces can be taken off, resulting in limited space. This invention places the two cutting wheels on both sides of the fixed bracket and the movable bracket, with no obstruction at the outer ends of the cutting wheels. During disassembly, the cutting disc can be directly replaced axially simply by loosening the flange bolts, significantly reducing downtime for field maintenance.

[0033] The first sprocket of this invention is positioned between the two cutting wheels, and neither the chain nor the sprocket poses a movement obstacle to the cutting wheels. The wheels can be removed directly without moving the chain, thus improving the replacement time.

[0034] In this invention, the first rotating shaft is tubular, and the second rotating shaft is slidably nested within it, with the sprocket always fixed to the first rotating shaft. When the movable bracket moves outward to adjust the wheel track, the second rotating shaft slides out axially relative to the first rotating shaft, while the chain center distance remains unchanged. Therefore, adjusting the wheel track does not require disassembling the chain, eliminating the secondary labor of "adjusting the track requires disassembling the chain," and making continuous field operations possible.

[0035] This utility model arranges the scissor mechanism, screw, and bevel gear set between the fixed bracket and the movable bracket, with the center of gravity always falling on the longitudinal center plane of the shell. The operator can remotely adjust the distance between the two cutting wheels by using the rubber knob at the end of the handle, which is convenient for adjusting the distance under different conditions to better cut and sample, and improves the portability of field operations. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of the portable rock sample cutting machine of this utility model;

[0038] Figure 2 This is a cross-sectional view of the portable rock sample cutting machine of this utility model.

[0039] Figure 3 Exploded view of the portable rock sample cutting machine of this utility model;

[0040] Figure 4 An exploded view of the portable rock sample cutting machine of this utility model from another perspective;

[0041] Figure 5 This utility model Figure 3 A magnified view of a portion of region B in the middle;

[0042] Figure 6 This utility model Figure 2 A magnified view of a portion of region A in the middle.

[0043] Reference numerals: 1. Housing; 2. Drive motor; 3. Fixed bracket; 4. First rotating shaft; 5. Movable bracket; 6. Second rotating shaft; 7. Cutting wheel; 8. First slide rail; 9. Connecting rod; 10. First connecting shaft; 11. Sliding wheel; 12. Second connecting shaft; 13. Connecting block; 14. Screw; 15. Gear frame; 16. First bevel gear; 17. Second bevel gear; 18. First slide groove; 19. Sliding block; 20. Drive rod; 21. Second slide rail; 22. Second slide groove; 23. First sprocket; 24. Second sprocket; 25. Chain; 26. Dust cover; 27. Operating handle; 28. Third slide groove; 29. ​​Sliding protrusion. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] Reference Figures 1-4 This utility model provides a portable rock sample cutter for field use, mainly for rapid sampling of irregular rocks in geological exploration sites. The whole machine consists of seven parts: a shell 1, a drive motor 2, a fixed bracket 3, a movable bracket 5, an adjustment mechanism, and a cutting wheel.

[0047] The housing 1 is integrally die-cast from aluminum alloy, forming a motor cavity and heat dissipation duct (not shown in the drawings). The drive motor 2 is embedded in the motor cavity by screws, and the output shaft of the drive motor 2 extends from the side wall of the housing 1. The drive motor 2 is connected to the first rotating shaft 4 for transmission, enabling it to rotate. The fixed bracket 3 is fixedly connected to the housing 1, and the first rotating shaft 4 is mounted on the distal end of the fixed bracket 3 via a pair of bearing seats (not shown in the drawings). The first rotating shaft 4 is a hollow tubular structure with two symmetrical third sliding grooves 28 axially formed on its inner wall. The third sliding grooves 28 are rectangular and are used to slide and insert with the second rotating shaft 6 to maintain synchronous rotation. The movable bracket 5 is located on one side of the fixed bracket 3. The distal end of the movable bracket 5 is also mounted with the second rotating shaft 6 via a pair of bearing seats. The outer wall of the second rotating shaft 6 is provided with strip-shaped sliding protrusions 29, which are slidably connected to the third sliding grooves 28, thereby enabling the first rotating shaft 4 and the second rotating shaft 6 to slide relative to each other axially and rotate synchronously. The adjustment mechanism is used to drive the displacement of the movable bracket 5 relative to the fixed bracket 3. The two cutting wheels 7 are located on opposite sides of the fixed bracket 3 and the movable bracket 5, and the two cutting wheels 7 are detachably connected to the flanges of the first rotating wheel and the second rotating wheel, respectively.

[0048] The fixed bracket 3 is vertically fixedly connected to a second slide rail 21 near the housing 1. The second slide rail 21 is fixedly connected to the housing 1. The movable bracket 5 is provided with a second slide groove 22 near one end of the housing 1. The second slide groove 22 is slidably connected to the second slide rail 21. The distance between the fixed bracket 3 and the movable bracket 5 can be changed in this way.

[0049] Preferably, the adjusting mechanism includes a first slide rail 8, a scissor mechanism, and a driving component. Among them, two groups of first slide rails 8 are fixedly connected to the opposite sides of the fixed bracket 3 and the movable bracket 5 respectively. The four first slide rails 8 are arranged in a rectangular array and all extend along the length direction of the fixed bracket 3. The cross-section of the first slide rail 8 along the length direction of the fixed bracket 3 is a "C" - shaped structure. The openings of the first slide rails 8 located on the fixed bracket 3 and the movable bracket 5 are arranged opposite to each other in pairs. The scissor mechanism includes a scissor, a first connecting shaft 10, and a sliding wheel 11. The scissor includes two connecting rods 9. The two intersecting connecting rods 9 are rotatably connected to each other at the intersection point through the first connecting shaft 10, and the ends of the two connecting rods 9 along the length direction are rotatably connected end to end in sequence, and a sliding wheel 11 is rotatably connected coaxially. The sliding wheel 11 is in rolling connection with the first slide rail 8, and the sliding wheel 11 is embedded in the opening groove of the first slide rail 8 to achieve rolling guidance. The driving component is used to drive the scissor mechanism to expand and contract along its length direction, so as to change the distance between the fixed bracket 3 and the movable bracket 5, and further realize the adjustment process of the distance between the two cutting wheels 7.

[0050] Preferably, the end of the connecting rod 9 close to the housing 1 is also hinged to the fixed bracket 3 through a second connecting shaft 12 to form a telescopic fixed point of the scissor mechanism.

[0051] The expansion and contraction of the scissor mechanism is controlled by the driving component. Specifically, the driving component includes a connecting block 13 and a screw 14. Among them, the middle parts of the two first connecting shafts 10 close to the housing 1 are fixedly connected with the connecting block 13 respectively; one end of the screw 14 is rotatably connected to the connecting block 13 far from the housing 1 through a bearing, and the other end is in threaded cooperation with the connecting block 13 close to the housing 1. When the screw 14 rotates, the distance between the two connecting blocks 13 changes,带动 the overall expansion and contraction of the scissor structure, and further推动 the movable bracket 5 to linearly move along the second slide rail 21.

[0052] Since the screw 14 is located between the fixed bracket 3 and the movable bracket 5, in order to facilitate the screwing operation of the screw 14, the power input end of the screw 14 of the present invention realizes a right - angle turn through a bevel gear set. Specifically, the driving component further includes a gear rack 15, a first bevel gear 16, a second bevel gear 17, a first chute 18, a movable block, and a driving rod 20. Among them, the gear rack 15 internally contains a mutually meshing first bevel gear 16 and a second bevel gear 17, and the axial directions of the first bevel gear 16 and the second bevel gear 17 are perpendicular; the other end of the screw 14 is coaxially fixedly connected with the first bevel gear 16, one end of the driving rod 20 is coaxially fixedly connected with the second bevel gear 17, and the other end passes through the sliding block 19 and is fixed with a rubber knob. The sliding block 19 can move along the first chute 18 on the end face of the fixed bracket 3 to adapt to the position change of the driving rod 20 during the expansion and contraction of the scissor. The user can smoothly adjust the distance between the two cutting wheels 7 by rotating the rubber knob without using tools.

[0053] A chain drive assembly is also provided between the two cutting wheels 7 in this utility model. Specifically, the first sprocket 23 is keyed to the first rotating shaft 4; the second sprocket 24 is fixed on the motor output shaft; the chain 25 is a roller chain, and a dust cover 26 is installed on the outside. The dust cover 26 is integrally formed with the fixed bracket 3, completely covering the chain 25 and sprocket to prevent rock chips and dust from entering. The cutting wheels 7 are diamond saw blades, which are fixed to the outer ends of the first rotating shaft 4 and the second rotating shaft 6 respectively by flanges, and rotate synchronously with the shafts. A rubber-coated operating handle 27 is bolted to the top of the housing 1. The handle contains a motor switch and a speed control knob, which allows the operator to control the start / stop and speed in different postures.

[0054] The second rotating shaft 6 is a solid shaft with strip-shaped sliding protrusions 29 machined on its outer wall. These protrusions engage with rectangular grooves in the inner hole of the first rotating shaft 4, allowing the second rotating shaft 6 to slide freely along the axial direction and rotate synchronously with the first rotating shaft 4. When the adjusting mechanism drives the movable support 5 to move, the second rotating shaft 6 maintains power transmission while achieving stepless adjustment of the distance between the two cutting wheels 7.

[0055] Preferably, the drive motor 2 of this utility model can be powered by an external power source or by a high-energy-density lithium battery.

[0056] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not 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 this utility model.

[0057] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A portable rock sample cutting machine for field use, characterized in that, Comprising: A housing (1), in which a driving motor (2) is embedded and installed; A fixed bracket (3) fixedly connected to the housing (1), on which a first rotating shaft (4) is rotatably connected, and the output shaft of the driving motor (2) is in transmission connection with the first rotating shaft (4); A movable bracket (5) slidably connected to the housing (1), on which a second rotating shaft (6) is rotatably connected, and the second rotating shaft (6) is in axial sliding connection with the first rotating shaft (4) and can rotate synchronously; 2. The portable rock sample cutting machine according to claim 1, characterized in that, An adjusting mechanism for adjusting the distance between the fixed bracket (3) and the movable bracket (5); And 3. The portable rock sample cutting machine according to claim 2, characterized in that, Two cutting wheels (7) located on both sides of the fixed bracket (3) and the movable bracket (5), and respectively flange-connected to the first rotating shaft (4) and the second rotating shaft (6).

4. The portable rock sample cutting machine according to claim 3, characterized in that, The adjusting mechanism includes:

5. The portable rock sample cutter according to claim 4, characterized in that, Two groups of first slide rails (8) are fixedly connected to the opposite sides of the fixed bracket (3) and the movable bracket (5), the first slide rails (8) are arranged along the length direction of the fixed bracket (3), the cross-section of the first slide rails (8) is a "C" - shaped structure, and the openings are arranged opposite to each other in pairs; A scissor mechanism, which includes a scissor fork, a first connecting shaft (10) and a sliding wheel (11), the scissor fork is a double-row structure, including two groups of connecting rods (9) that cross each other, the two cross-set connecting rods (9) are rotatably connected to each other at the cross point through the first connecting shaft (10), the ends of the two connecting rods (9) along the length direction are rotatably connected end to end in sequence, and a sliding wheel (11) is rotatably connected coaxially, and the sliding wheel (11) is in rolling connection with the first slide rail (8); and A driving component for driving the scissor mechanism to expand and contract along its length direction. One end of the connecting rod (9) close to the housing (1) is rotatably connected to the first slide rail (8) through a second connecting shaft (12). The driving component includes: Connection blocks (13) are fixedly connected to the middle parts of the two first connecting shafts (10) close to the housing (1); and A screw rod (14), one end of which is rotatably connected to the connection block (13) farther away from the housing (1), and the middle part of which is in threaded connection with the connection block (13) closer to the housing (1). The driving component further includes: A gear rack (15), on which a first bevel gear (16) and a second bevel gear (1 6. The portable rock sample cutter according to claim 1, characterized in that, The fixed bracket (3) is also vertically fixedly connected to the second slide rail (21) near the housing (1). The second slide rail (21) is fixedly connected to the housing (1). The movable bracket (5) is provided with a second slide groove (22) near the housing (1). The second slide groove (22) is slidably connected to the second slide rail (21).

7. The portable rock sample cutting machine according to claim 1, characterized in that, A first sprocket (23) is provided between the fixed bracket (3) and the movable bracket (5), and the first sprocket (23) is coaxially and fixedly connected to the first rotating shaft (4); The output shaft of the drive motor (2) is connected to a second sprocket (24), and the second sprocket (24) and the first sprocket (23) are connected by a chain (25).

8. The portable rock sample cutter according to claim 7, characterized in that, The fixed bracket (3) is integrally formed with a dust cover (26), which covers the periphery of the chain (25).

9. The portable rock sample cutter according to claim 1, characterized in that, An operating handle (27) is provided on the housing (1).

10. The portable rock sample cutter according to any one of claims 1 to 9, characterized in that, The first rotating shaft (4) is a tubular structure with a third sliding groove (28) on its inner sidewall. The second rotating shaft (6) has a strip-shaped sliding protrusion (29) on its outer sidewall. The sliding protrusion (29) is slidably connected to the third sliding groove (28).

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