Carborundum spiral conveying mechanism

Abstract

The invention provides a carborundum spiral conveying mechanism, and relates to the technical field of carborundum conveying, the carborundum spiral conveying mechanism comprises no less than four groups of swing blades arranged at equal intervals along the axis, the upper end and the lower end of each swing blade are respectively provided with a center rod, and a material receiving pipe is provided with rotating holes with the same number as the center rods; the center rod is rotationally connected into the rotating hole, inner grooves with the same number as the swing blades are formed in the material collecting pipe, a gap filling frame is installed in each inner groove, a positioning rod is installed in each gap filling frame, and a positioning sleeve is installed on the side, away from the center rod, of each swing blade. Due to the flexibility, the equipment can adapt to carborundum with different densities and flowability, the conveying efficiency is improved, compared with a traditional fixed spiral blade, the adjustable swing blade can create a larger effective space in the material collecting process, more carborundum is allowed to enter a conveying system, the material amount conveyed at a time is increased, and the conveying efficiency is improved. And idle running and energy waste are obviously reduced.

Description

Technical Field

[0001] The invention relates to the technical field of diamond grit conveying, and more particularly to a diamond grit spiral conveying mechanism. Background Art

[0002] Structural characteristics and efficiency bottlenecks of existing corundum screw conveyors Traditional corundum screw conveying mechanisms generally adopt a design of closed conveying pipes and built-in spiral blades. Their working principle mainly relies on the rotational movement of the spiral blades to generate axial thrust on the material. In actual operation, since an assembly gap needs to be maintained between the spiral blades and the inner wall of the conveying pipe to prevent friction and jamming, this structural characteristic leads to obvious filling defects in the feeding stage. When the corundum material enters from the feed port, under the influence of gravity, the high-density abrasive will preferentially deposit at the bottom of the conveying pipe, while an invalid cavity will be formed in the top area of ​​the spiral blades, which not only causes a waste of conveying volume, but also causes the spiral blades to periodically idle during the rotation and propulsion process, resulting in a significant reduction in the effective conveying volume per unit time. In addition, the insufficient filling state will also aggravate the sliding friction between the material and the spiral blades, causing unnecessary energy loss.

[0003] The impact of this structural filling defect has an obvious conduction effect. First, the non-uniform filling state on the cross section of the conveying pipe will cause the material conveying trajectory to be disturbed, and the corundum particles are prone to radial rolling during the advancement process. Secondly, the low filling rate forces the equipment to compensate for the conveying volume by increasing the rotation speed, while aggravating the wear rate of the spiral blade end and the pipe wall. More importantly, under continuous operating conditions, the "gas-solid" two-phase flow state formed by insufficient filling will cause pressure fluctuations in the conveying pipe, causing the vibration amplitude of the equipment to increase, seriously affecting the stability of the transmission system. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the present invention provides a diamond abrasive spiral conveying mechanism to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a diamond abrasive spiral conveying mechanism, comprising a conveying pipe connected to an external device and a receiving pipe sealed and rotatably connected to the conveying pipe; further comprising an expansion mechanism, the expansion mechanism comprising swing leaves arranged at equal intervals along the axis and in no less than four groups, each of the swing leaves being respectively provided with a center rod at both ends, and the receiving pipe being provided with the same number of rotating holes as the center rod, the center rod being rotatably connected in the rotating hole, the receiving pipe being provided with the same number of inner grooves as the swing leaves, each of the inner grooves being respectively provided with a caulking frame, a positioning rod being provided in the caulking frame, a positioning sleeve being provided on the side of the swing leaf away from the center rod, and a plurality of adjusting holes arranged along the rotating hole being provided in the inner groove, the positioning sleeve sliding in the inner groove, and the positioning rod being inserted into the positioning sleeve through the adjusting hole; and

[0008] The adjustment mechanism includes fixing holes opened in the plurality of inner grooves, an inner sleeve is fixedly installed in each of the fixing holes, and a top sleeve coaxially arranged with the inner sleeve is installed on each of the caulking frames, and a guide sleeve is slidably connected in the top sleeve, and a locking sleeve is installed at the lower end of the guide sleeve.

[0009] Preferably, the plurality of adjustment holes are respectively opened along the rotating hole as the axis, and when the swing leaf rotates, the positioning sleeve slides in the inner groove, and when the caulking frame is inserted into the inner groove, the plurality of positioning rods are respectively inserted into the plurality of adjustment holes, and one of the positioning rods is inserted into the positioning sleeve. This design realizes the adjustment and fixation of the swing leaf angle through the arc arrangement of the adjustment holes and the sliding mechanism of the positioning sleeve, and the multi-point insertion of the positioning rods enhances the stability of the fixation.

[0010] Preferably, the adjustment mechanism also includes a one-way ring installed on the outer wall of the locking sleeve, and a plurality of shrinkage blocks are fitted and connected to the one-way ring. The inner sleeve is provided with shrinkage grooves with the same number as the shrinkage blocks, and each of the shrinkage grooves is slidably connected to a shrinkage block. This structural design forms a self-locking mechanism through the cooperation of the one-way ring and the shrinkage block.

[0011] Preferably, a plurality of tension springs are connected to the locking sleeve, and the plurality of tension springs are respectively connected to the top sleeve, and a plurality of ejector rods are installed at the lower end of each locking sleeve.

[0012] Preferably, the lower end of the inner sleeve is sealingly and slidably connected to a piston disc, the piston disc and the inner sleeve are sealingly and slidably connected, and a damping hole is opened on the piston disc, and the damping hole is connected to the upper and lower ends of the piston disc. This design creates a sealed sliding of the piston disc through the cooperation of the piston disc and the damping hole to ensure the smoothness of the movement, and the damping hole controls the air flow speed, thereby achieving the cooperation of unlocking and locking.

[0013] Preferably, a push spring is installed at the lower end of the piston disc, and the push spring abuts against the inner sleeve. A synchronization spring is installed on each of the contraction blocks, and multiple synchronization springs are respectively connected to the piston disc. This design realizes the control of the movement of the piston disc and the contraction block through the synergistic effect of the push spring and the synchronization spring. The push spring provides the return force of the piston disc, and the synchronization spring ensures the synchronization of the movement of the contraction block.

[0014] Preferably, a through hole is provided on the caulking frame, the through hole and the guide sleeve are coaxially arranged, the through holes at both ends are slidably connected to the synchronous frame, and the synchronous frame passes through the through hole and the guide sleeve and abuts against the locking sleeve.

[0015] Preferably, a material receiving motor is fixedly mounted on the conveying pipe, a driven wheel is fixedly mounted on the material receiving pipe, a driving wheel is mounted on the protruding end of the material receiving motor, and the driving wheel is meshed with the driven wheel.

[0016] Preferably, a conveying blade is rotatably connected in the conveying pipe, and a conveying motor is installed on the conveying pipe, and the protruding end of the conveying motor is connected to the conveying blade, and the other end of the conveying blade is rotatably connected in the receiving pipe.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a diamond abrasive spiral conveying mechanism, which has the following beneficial effects:

[0019] First of all, the mechanism has an adjustable swing blade design. These swing blades can adjust their angles according to actual needs, thereby changing the filling rate of the collected material. This flexibility enables the equipment to adapt to corundum with different densities and fluidities, thereby improving the conveying efficiency. Compared with traditional fixed spiral blades, the adjustable swing blades can create a larger effective space during the collection process, allowing more corundum to enter the conveying system, which not only increases the amount of material conveyed in a single time, but also significantly reduces idling and energy waste.

[0020] Secondly, the mechanism adopts a unique design of separating the receiving pipe and the conveying pipe. The receiving pipe can rotate independently and achieves precise control of the feeding speed through cooperation with the external drive system. This design not only improves the uniformity of the feeding, but also can flexibly adjust the feeding rate according to different working conditions, thereby optimizing the entire conveying process.

[0021] The mechanism adopts an innovative locking mechanism, including a one-way ring, a retracting block and a damping system. This locking mechanism ensures the stability of the swing blade after the angle is adjusted, and also provides a safe and reliable unlocking mechanism. This design not only enhances the stability of the equipment in high-intensity working environments, but also improves the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a diamond abrasive spiral conveying mechanism in the present invention;

[0023] Figure 2 It is a schematic diagram of the exploded structure of the swing blade, the caulking frame and the material receiving pipe in the present invention;

[0024] Figure 3 It is a structural schematic diagram of the material receiving tube in the present invention;

[0025] Figure 4 It is a schematic diagram of the exploded structure of the swing leaf and the caulking frame in the present invention;

[0026] Figure 5 It is a cross-sectional structural schematic diagram of the caulking frame and the inner sleeve in the present invention;

[0027] Figure 6 It is a schematic cross-sectional structural diagram of the inner sleeve in the present invention;

[0028] Figure 7 It is a cross-sectional structural schematic diagram of the synchronization frame and the caulking frame in the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the conveying pipe and the conveying blade in the present invention.

[0030] In the figure: 11, conveying pipe; 12, receiving pipe; 21, swing leaf; 22, center rod; 23, rotating hole; 24, inner groove; 25, caulking frame; 26, positioning rod; 27, positioning sleeve; 28, adjusting hole; 31, fixing hole; 32, inner sleeve; 33, top sleeve; 34, guide sleeve; 35, locking sleeve; 36, one-way ring; 37, contraction block; 38, contraction groove; 39, tension spring; 41, receiving motor; 42, driven wheel; 43, driving wheel; 44, conveying leaf; 45, conveying motor; 310, push rod; 311, piston plate; 312, damping hole; 313, push spring; 314, synchronization spring; 315, through hole; 316, synchronization frame. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0034] See also Figures 1 to 8 A diamond abrasive spiral conveying mechanism comprises a conveying pipe 11 connected to an external device and a receiving pipe 12 sealed and rotatably connected to the conveying pipe 11, an expansion mechanism comprises swing leaves 21 arranged at equal intervals along the axis and in groups of no less than four, each swing leaf 21 is respectively provided with a center rod 22 at both ends, and the receiving pipe 12 is provided with a rotating hole 23 having the same number as the center rod 22, the center rod 22 is rotatably connected in the rotating hole 23, the receiving pipe 12 is provided with an inner groove 24 having the same number as the swing leaf 21, each inner groove 24 is respectively provided with a caulking frame 25, a positioning rod 26 is installed in the caulking frame 25, a positioning sleeve 27 is installed on the side of the swing leaf 21 away from the center rod 22, and a plurality of adjusting holes 28 arranged along the rotating hole 23 are provided in the inner groove 24, the positioning sleeve 27 slides in the inner groove 24, and the positioning sleeve 27 is fixed. The positioning rod 26 passes through the adjustment hole 28 and is inserted into the positioning sleeve 27. A plurality of adjustment holes 28 are respectively opened along the rotating hole 23 as the axis. When the swing leaf 21 rotates, the positioning sleeve 27 slides in the inner groove 24. When the caulking frame 25 is inserted into the inner groove 24, a plurality of positioning rods 26 are respectively inserted into the plurality of adjustment holes 28, and one of the positioning rods 26 is inserted into the positioning sleeve 27. A material receiving motor 41 is fixedly installed on the conveying pipe 11, a driven wheel 42 is fixedly installed on the material receiving pipe 12, a driving wheel 43 is installed on the protruding end of the material receiving motor 41, and the driving wheel 43 is engaged with the driven wheel 42. A conveying leaf 44 is rotatably connected in the conveying pipe 11, and a conveying motor 45 is installed on the conveying pipe 11, and the protruding end of the conveying motor 45 is connected to the conveying leaf 44, and the other end of the conveying leaf 44 is rotatably connected in the material receiving pipe 12.

[0035] When the corundum is conveyed by screw, the angles of the plurality of swing blades 21 are first changed according to the required filling rate of the collected material. Figure 1 and Figure 2When the swinging blade 21 rotates along the center rod 22, the angles of multiple swinging blades 21 can be changed. When the receiving tube 12 is in the corundum, the receiving motor 41 is started, and then the driving wheel 43 is driven to rotate. Since the driving wheel 43 is engaged with the driven wheel 42, the receiving tube 12 is driven to rotate along the axis of the conveying tube 11. Due to the different openings of the swinging blades 21, different receiving speeds will be generated, and then the collected materials will flow into the receiving tube 12. In addition, the diameter between the multiple swinging blades 21 is larger than the diameter of the spiral blades, so more corundum will be collected faster, and then a larger filling rate will be provided between the spiral blades. The corundum is spirally conveyed and discharged by driving the spiral blades to rotate through the conveying motor 45, thereby improving the conveying efficiency.

[0036] See also Figure 3 and Figure 4 When the angle of the swing leaf 21 needs to be changed, it needs to be fixed. After adjusting the swing leaf 21, the corresponding caulking frame 25 is inserted into the inner groove 24. At this time, multiple adjustment holes 28 are inserted by the positioning rods 26. Since the positioning sleeve 27 is slidably connected in the inner groove 24, one of the positioning rods 26 will be inserted into the positioning sleeve 27, thereby fixing the angle of the swing leaf 21, and filling the inner groove 24 and all the adjustment holes 28 through the caulking frame 25, thereby avoiding the accumulation of diamond sand in the adjustment hole 28 and ensuring the convenience of use.

[0037] See also Figures 5 to 8The adjusting mechanism includes a plurality of fixing holes 31 provided in the inner grooves 24, an inner sleeve 32 is fixedly installed in each fixing hole 31, and a top sleeve 33 coaxially arranged with the inner sleeve 32 is installed on each caulking frame 25, and a guide sleeve 34 is slidably connected in the top sleeve 33, and a locking sleeve 35 is installed at the lower end of the guide sleeve 34. The adjusting mechanism also includes a one-way ring 36 installed on the outer wall of the locking sleeve 35, and a plurality of shrinkage blocks 37 are fittedly connected to the one-way ring 36. The inner sleeve 32 is provided with the same number of shrinkage grooves 38 as the shrinkage blocks 37, and a shrinkage block 37 is slidably connected in each shrinkage groove 38. A plurality of tension springs 39 are connected to the locking sleeve 35, and a plurality of tension springs 39 are respectively connected to the top sleeve 33, and the lower end of each locking sleeve 35 A plurality of push rods 310 are installed, and a piston disk 311 is sealingly and slidably connected at the lower end of the inner sleeve 32. The piston disk 311 and the inner sleeve 32 are sealed and slidably connected, and a damping hole 312 is provided on the piston disk 311, and the damping hole 312 is connected to the upper and lower ends of the piston disk 311. A push spring 313 is installed at the lower end of the piston disk 311, and the push spring 313 abuts against the inner sleeve 32. A synchronization spring 314 is respectively installed on each contraction block 37, and a plurality of synchronization springs 314 are respectively connected to the piston disk 311. A through hole 315 is provided on the caulking frame 25, and the through hole 315 and the guide sleeve 34 are coaxially arranged. The synchronization frame 316 is slidably connected in the through holes 315 at both ends, and the synchronization frame 316 passes through the through hole 315 and the guide sleeve 34 and abuts against the locking sleeve 35.

[0038] When fixing the caulking frame 25, refer to Figure 5 and Figure 6 As the top sleeve 33 is fixedly installed in the caulking frame 25, as the top sleeve 33 slides downward, the locking sleeve 35 is driven to be inserted downward, and the synchronous frame 316 is pushed into the locking sleeve 35 through the through hole 315, and then the contraction block 37 is pushed on the one-way ring 36. As the one-way ring 36 slides downward, it is in an expansion state, so it will expand while sliding downward, and reduce the contact area with the one-way ring 36, until the one-way ring 36 passes over the contraction block 37. At this time, under the action of the synchronous spring 314, multiple contraction blocks 37 will be pushed to slide upward along the contraction groove 38, and When the locking cam 35 is in a state of being contracted while sliding upward, the synchronous frame 316 is pressed downward so that the locking sleeve 35 drives the piston disc 311 to move downward, and the push rod 310 is pressed against the piston disc 311 and continues to move downward. At this time, the air at the lower end of the piston disc 311 will be discharged through the damping hole 312. At this time, the synchronous spring 314 is not subjected to force and in the unforced position, which will cause the contraction block 37 to be at the upper end of the one-way ring 36, and then slowly release upward so that the speed of air intake through the damping hole 312 will not affect the speed of the upward return stroke, and the one-way ring 36 will be stuck on the contraction block 37, thereby completing the fixing process.

[0039] When it is necessary to unlock, the synchronous frame 316 is still passed through the through hole 315 to press the locking sleeve 35 downward. Since the locking sleeve 35 is pressed on the piston plate 311, the piston plate 311 will be driven to move downward synchronously, and under the action of the synchronous spring 314, multiple contraction blocks 37 will be driven to move downward and expand synchronously until the card connection with the one-way ring 36 is unlocked, and then continue to press downward to make a certain distance between the contraction block 37 and the one-way ring 36, and wait for the damping hole 312 to discharge the air at the lower end of the piston plate 311, and then quickly release the synchronous frame 316. Since the damping hole 312 is very small, it can only inhale air very slowly, so a slow return stroke will be generated. Since the synchronous spring 314 is connected to the contraction block 37 and the piston plate 311, the contraction block 37 will also move upward slowly. At this time, the caulking frame 25 is quickly pulled out, and then the locking sleeve 35 is synchronously pulled out, thereby completing the unlocking process.

[0040] When installing and unlocking the caulking frame 25, the synchronous frame 316 needs to be operated, and can only be operated through the through hole 315, thereby ensuring the safety of operation without external interference, and when subjected to external force, only the caulking frame 25 will be pressed downward, thereby ensuring the stability of the fixation.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A corundum spiral conveying mechanism, comprising a conveying pipe (11) connected to an external device and a receiving pipe (12) sealed and rotatably connected to the conveying pipe (11); wherein: The expansion mechanism also includes an expansion mechanism, the expansion mechanism includes swing leaves (21) arranged at equal intervals along the axis and not less than four groups, each of the swing leaves (21) is respectively provided with a center rod (22) at the upper and lower ends, and the receiving tube (12) is provided with a rotation hole (23) of the same number as the center rod (22), the center rod (22) is rotatably connected in the rotation hole (23), the receiving tube (12) is provided with an inner groove (24) of the same number as the swing leaves (21), each inner groove A caulking frame (25) is respectively installed in the groove (24), a positioning rod (26) is installed in the caulking frame (25), a positioning sleeve (27) is installed on the side of the swing leaf (21) away from the center rod (22), and a plurality of adjustment holes (28) arranged along the rotating hole (23) are opened in the inner groove (24), the positioning sleeve (27) slides in the inner groove (24), and the positioning rod (26) passes through the adjustment hole (28) and is inserted into the positioning sleeve (27); and The adjustment mechanism comprises a plurality of fixing holes (31) formed in the inner grooves (24), an inner sleeve (32) being fixedly mounted in each of the fixing holes (31), and a top sleeve (33) coaxially arranged with the inner sleeve (32) being mounted on each of the caulking frames (25), a guide sleeve (34) being slidably connected in the top sleeve (33), and a locking sleeve (35) being mounted at the lower end of the guide sleeve (34).

2. The diamond grinding screw conveying mechanism according to claim 1 is characterized in that: The plurality of adjustment holes (28) are respectively opened along the axis of the rotating hole (23); when the swing leaf (21) rotates, the positioning sleeve (27) slides in the inner groove (24); when the caulking frame (25) is inserted into the inner groove (24), the plurality of positioning rods (26) are respectively inserted into the plurality of adjustment holes (28), and one of the positioning rods (26) is inserted into the positioning sleeve (27).

3. The diamond grinding spiral conveying mechanism according to claim 1 is characterized in that: The adjustment mechanism also includes a one-way ring (36) mounted on the outer wall of the locking sleeve (35), and a plurality of shrinkage blocks (37) are fitted and connected to the one-way ring (36). The inner sleeve (32) is provided with shrinkage grooves (38) the same number as the shrinkage blocks (37), and each of the shrinkage grooves (38) is slidably connected to a shrinkage block (37).

4. The diamond grinding screw conveying mechanism according to claim 3 is characterized in that: The locking sleeve (35) is connected to a plurality of tension springs (39), and the plurality of tension springs (39) are respectively connected to the top sleeve (33), and a plurality of top rods (310) are installed at the lower end of each locking sleeve (35).

5. The diamond grinding screw conveying mechanism according to claim 4 is characterized in that: The lower end of the inner sleeve (32) is sealed and slidably connected to a piston disc (311), the piston disc (311) and the inner sleeve (32) are sealed and slidably connected, and a damping hole (312) is opened on the piston disc (311), and the damping hole (312) is connected to the upper and lower ends of the piston disc (311).

6. The diamond grit screw conveying mechanism according to claim 5, characterized in that: A push spring (313) is installed at the lower end of the piston disc (311), and the push spring (313) abuts against the inner sleeve (32). A synchronization spring (314) is installed on each of the contraction blocks (37), and a plurality of synchronization springs (314) are connected to the piston disc (311) respectively.

7. The diamond grit screw conveying mechanism according to claim 6, characterized in that: The caulking frame (25) is provided with a through hole (315), the through hole (315) and the guide sleeve (34) are coaxially arranged, and the through holes (315) at both ends are slidably connected to the synchronization frame (316), and the synchronization frame (316) passes through the through hole (315) and the guide sleeve (34) and contacts the locking sleeve (35).

8. The diamond grit screw conveying mechanism according to claim 1, characterized in that: A material receiving motor (41) is fixedly mounted on the conveying pipe (11), a driven wheel (42) is fixedly mounted on the material receiving pipe (12), a driving wheel (43) is mounted on the protruding end of the material receiving motor (41), and the driving wheel (43) is meshed with the driven wheel (42).

9. The diamond grit spiral conveying mechanism according to claim 8, characterized in that: A conveying blade (44) is rotatably connected in the conveying pipe (11), and a conveying motor (45) is installed on the conveying pipe (11), and the protruding end of the conveying motor (45) is connected to the conveying blade (44), and the other end of the conveying blade (44) is rotatably connected in the receiving pipe (12).

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