Telescopic grabbing device

Abstract

The present invention provides a telescopic grabbing device, which is characterized by comprising a plurality of telescopic boom sleeves, a plurality of telescopic rotating shafts rotatably placed in the plurality of boom sleeves, a basket clamping mechanism arranged at the lower end of the boom sleeve and the lower end of the rotating shaft, a driving mechanism arranged at the upper end of the boom sleeve and the upper end of the rotating shaft, and the basket clamping mechanism is matched with the through hole at the top of the extraction basket. Driven by the driving mechanism, the plurality of boom sleeves can drive the plurality of rotating shafts to extend or retract synchronously, and the basket clamping mechanism can extend and clamp to the through hole at the top of the extraction basket through the synchronous rotation of the plurality of rotating shafts to complete the grabbing of the extraction basket, and retract and release the clamping of the extraction basket. The height of the factory building is greatly reduced, and the grabbing of the extraction basket group with a larger height is not affected. The grabbing stability and reliability of the extraction basket are high, the structure is simple, and it is easy to operate.

Description

Technical Field

[0001] The invention relates to a telescopic grabbing device, in particular to a device for grabbing and putting down an extraction basket in basket extraction, and belongs to the technical field of mechanical design and manufacturing in the traditional Chinese medicine extraction industry. Background Art

[0002] In the current basket extraction, the entry and exit of the extraction basket mainly rely on the hook and lifting device to take out or put in the extraction basket in turn, which is not only inefficient, but also cannot adapt to large-scale production. In response to this situation, Chinese patent CN202152221U discloses a material grabbing device, which mainly relies on the driving mechanism and the push rod to push the connecting rod, and then pushes the rotating arm to rotate along their respective rotating axes to the horizontal position. The outer end surface of the rotating arm contacts the horizontal disk surface of the chuck seat and is braked by the chuck seat. The outer end of the extended section of the rotating arm extends to the bottom surface of the cylindrical material, holding the cylindrical material, and the grabbing action can be completed, and vice versa. The putting down action is completed. Since the height of the extraction basket group is generally greater than 2 meters and the internal depth of the extraction tank is greater than 3 meters, in order to pick up and put the extraction basket group, the use of such a device requires a higher factory building and a higher lifting equipment for picking up and putting the extraction basket group, which is neither economical nor suitable for some specific working occasions. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] The present invention aims to provide a telescopic grabbing device for lifting and placing an extraction basket group, so as to adapt to the grabbing of a high extraction basket group in a low factory building.

[0004] The present invention is completed through the following technical solutions: a telescopic grabbing device, characterized in that it includes a plurality of telescopic boom sleeves, a plurality of telescopic rotating shafts rotatably placed in the plurality of boom sleeves, a basket clamping mechanism arranged at the lower end of the boom sleeve and the lower end of the rotating shaft, the basket clamping mechanism is matched with the through hole at the top of the extraction basket, and a driving mechanism is arranged at the upper end of the boom sleeve and the upper end of the rotating shaft, so that under the drive of the driving mechanism, the plurality of boom sleeves drive the plurality of rotating shafts to extend or retract synchronously, and at the same time, the plurality of rotating shafts are rotated, so that the basket clamping mechanism extends and clamps on the top opening of the extraction basket to complete the grabbing of the extraction basket, retracts and releases the clamping of the extraction basket.

[0005] The several sections of the boom sleeves, from the second section of the boom sleeve to the last section of the boom sleeve, are each provided with a guide pulley on the outer side of the upper end of the boom sleeve. At the same time, from the first section of the boom sleeve to the second to last section of the boom sleeve, each section of the boom sleeve is provided with a pressure-bearing guide block on the outer side of the lower end. The guide pulley is slidably connected with the traction rope so as to realize the retraction and extension of the several sections of the boom sleeves and the rotating shaft under the drive of the traction rope.

[0006] The driving mechanism includes a top seat fixed to the top of the uppermost boom sleeve, with an axial hole in the middle and a plurality of screw holes on the side. Bolts are arranged in the plurality of screw holes, and a wheel seat with a traction pulley is fixed by the bolts and nuts. The pulley is slidably connected to the traction rope. The top end of the uppermost rotating shaft extends upward through the axial hole in the middle of the top seat and is connected to the rotating motor so that the rotating shaft can rotate under the drive of the rotating motor.

[0007] The top seat is fixed on a mobile bracket on the top of the plant and is used to grab the extraction baskets at different positions.

[0008] The traction rope is provided with a main traction rope and several auxiliary traction ropes, the inner end of the main traction rope is fixed on the upper end of the second section boom sleeve, and the outer end of the main traction rope passes around the first pulley at the upper end of the first section boom sleeve and the second pulley at the lower end to be connected with the winding power machine; the pressure-bearing guide block of the first section boom sleeve is connected with one end of at least two auxiliary traction ropes, and the other ends of the two auxiliary traction ropes pass around the guide pulley of the second section boom sleeve and extend downward, and are fixed on the upper end of the third section boom sleeve; the pressure-bearing guide block of the second section boom sleeve is connected with one end of at least two auxiliary traction ropes, and the other ends of the two auxiliary traction ropes pass around the guide pulley of the third section boom sleeve and extend downward, and are fixed on the upper end of the fourth section boom sleeve. With such connection, under the drive of the winding power machine, the main traction rope and the auxiliary traction rope can drive each section boom sleeve and the rotating shaft to move in sequence to complete the extension or retraction action.

[0009] The basket clamping mechanism includes a base fixed to the lower end of the suspension rod sleeve at the lowest end, the base having an axial hole in the middle and multiple screw holes on the edge. The multiple screw holes are connected to a load-bearing seat through corresponding bolts and nuts, and a space is provided between the base and the load-bearing seat. The lower end of the lowest rotating shaft extends downward through the axial hole and is connected to a gear placed in the space between the base and the load-bearing seat. The gear is meshed with teeth of at least two tooth handles. Each tooth handle is rotatably arranged on the corresponding bolt connecting the base and the load-bearing seat, so that when the rotating shaft rotates forward, the gear is driven to rotate clockwise, and the tooth handle meshing with the gear rotates in the opposite direction around the bolt to make the handle of the tooth handle extend outward and be clamped in the through hole at the top of the extraction basket. When the rotating shaft rotates reversely, the gear is driven to rotate counterclockwise, and the tooth handle meshing with the gear rotates forward around the bolt to make the handle of the tooth handle retract inward, thereby releasing the clamping of the extraction basket.

[0010] The present invention has the following advantages and effects: by adopting the above scheme, it is convenient to drive the driving mechanism to make several sections of the suspension rod sleeve drive several sections of the rotating shaft to extend or retract synchronously, and through the synchronous rotation of several sections of the rotating shaft, the clamping basket mechanism is extended and clamped on the through hole at the top of the extraction basket to complete the grabbing of the extraction basket, and retracted to release the clamping of the extraction basket. The telescopic grabbing device can greatly reduce the height of the factory building without affecting the grabbing of the extraction basket group with a larger height, and the grabbing stability and reliability of the extraction basket are high, the structure is simple, and it is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the present invention;

[0012] Figure 2 for Figure 1 AA view of the . DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] The telescopic grabbing device provided by the present invention comprises a telescopic boom sleeve 2 of three sections, a telescopic rotating shaft 3 of three sections rotatably placed in the boom sleeve 2, a basket mechanism 4 arranged at the lower end of the third boom sleeve and the third rotating shaft, the basket mechanism 4 is matched with the opening at the top of the extraction basket, and a driving mechanism 1 is arranged at the upper end of the first boom sleeve and the first rotating shaft; among the three boom sleeves, from the second boom sleeve to the third boom sleeve, a guide pulley 21 is arranged on the outer side of the upper end of each boom sleeve, and from the first boom sleeve to the second boom sleeve, a pressure-bearing guide block 22 is arranged on the outer side of the lower end of each boom sleeve;

[0015] The driving mechanism 1 comprises a top seat 11 fixed to the top of the first section of the boom sleeve, the top seat 11 having an axial hole in the middle and a plurality of screw holes on the side, the plurality of screw holes being provided with bolts, a wheel seat 13 having a first traction pulley 12 being fixed by bolts and nuts, the traction pulley 12 being slidably connected to the traction rope, the top end of the first section of the rotating shaft extending upward through the axial hole in the middle of the top seat 11 and connected to the rotating motor 31, so that the retractable rotating shaft 3 of the three-section set can be rotated under the drive of the rotating motor 31;

[0016] The top seat 11 is fixed on a conventional mobile bracket (not shown in the figure) on the top of the factory building. The mobile bracket is a longitudinal beam fixed on the top of the factory building, and its two ends are arranged on the cross beam 18 on the longitudinal beam through pulleys or sliders. The top seat 11 is slidably placed on the cross beam 18 through the pulley 17 so as to move along the cross beam 18, and then moves along the longitudinal beam with the cross beam 18 to grab the extraction baskets at different positions; the mobile bracket can also be a mobile bracket that moves along the circular guide rail.

[0017] The traction rope is provided with a main traction rope 14 and a plurality of auxiliary traction ropes 15, the inner end of the main traction rope 14 is fixed to the upper end of the second section boom sleeve, the outer end is passed around the first traction pulley 12 at the upper end of the first section boom sleeve, and the second traction pulley 16 at the lower end is connected to a conventional winding power machine - a poplar winding machine (not shown in the figure); the pressure guide block 22 of the first section boom sleeve is connected to one end of two symmetrically arranged auxiliary traction ropes 15, and the other ends of the two auxiliary traction ropes 15 are passed around the guide pulley 21 of the second section boom sleeve and extend downward, and are fixed to the upper end of the third section boom sleeve; that is, under the drive of the winding power machine, the second section boom sleeve and the second section rotating shaft are pulled upward by the main traction rope 14, and the third section boom sleeve and the third section rotating shaft 3 are driven to move in sequence by the auxiliary traction rope 15 to complete the retraction action, otherwise the full extension action is completed;

[0018] The basket mechanism 4 includes a base 41 fixed to the lower end of the third section of the boom sleeve, with an axial hole in the middle and multiple screw holes on the side. The multiple screw holes are connected to a load-bearing seat 42 through corresponding bolts and nuts 43. A space is provided between the base 41 and the load-bearing seat 42. A gear 32 is provided in the space. After the lower end of the third section of the rotating shaft extends downward through the axial hole in the middle of the base 41, it is connected to the gear 32 in the space. The gear 32 is meshed with the teeth 441 of the three tooth handles 44. Each tooth handle 44 is rotatably arranged on The corresponding bolts 43 of the connecting base 41 and the load-bearing seat 42 are connected so that when the rotating shaft 3 rotates forward, the gear 32 is driven to rotate clockwise, so that the tooth handle 44 meshing with the gear 32 rotates reversely around the bolt 43, and the handle 442 of the tooth handle 44 extends outward and is clamped in the through hole at the top of the extraction basket. When the rotating shaft 3 rotates reversely, the gear 32 is driven to rotate counterclockwise, so that the tooth handle 44 meshing with the gear 32 rotates forward around the bolt 43, and the handle 442 of the tooth handle 44 retracts inward, releasing the clamping of the extraction basket.

[0019] During operation, after the telescopic grabbing device is moved to a position along the mobile frame on the top of the plant, the main traction rope 14 is controlled to descend by the winding power machine - the winder, so that the second and third sections of the boom sleeves 2 are successively lowered, and the second and third sections of the rotating shafts 3 are also lowered, so that the length of the entire device is lengthened until the basket clamping mechanism 4 extends into the opening at the top of the extraction basket. Driven by the rotating motor 31, the rotating shaft 3 rotates forward to drive the gear 32 to rotate clockwise, so that the tooth handle 44 meshing with the gear 32 rotates in the opposite direction around the bolt 43, so that the handle 442 of the tooth handle 44 extends outward and is clamped on the top of the extraction basket. The extraction basket is grabbed in the opening; and the main traction rope 14 is controlled to rise by the winding power machine - the winder, which drives the second section of the boom sleeve and the second section of the rotating shaft to rise, and with the rise of the second section of the boom sleeve and the rotating shaft, the third section of the boom sleeve and the third section of the rotating shaft are driven to rise synchronously through the auxiliary traction rope 15 to shorten the length of the entire device, and the extraction basket is lifted to the specified position and then put down, and the rotating shaft 3 rotates in the opposite direction to drive the gear 32 to rotate counterclockwise, so that the tooth handle 44 meshing with the gear 32 rotates forward around the bolt 43 to retract the handle 442 of the tooth handle 44 inward, releasing the clamping of the extraction basket.

Claims

1. A telescopic grabbing device, characterized in that It comprises a plurality of sections of telescopic boom sleeves, a plurality of sections of telescopic rotating shafts rotatably arranged in the plurality of sections of boom sleeves, a basket clamping mechanism arranged at the lower end of the boom sleeve and the lower end of the rotating shaft, a driving mechanism arranged at the upper end of the boom sleeve and the upper end of the rotating shaft, and the basket clamping mechanism is matched with a through hole at the top of the extraction basket; The plurality of boom sleeves, starting from the second boom sleeve to the last boom sleeve, are provided with a guide pulley on the outer side of the upper end of each boom sleeve, and starting from the first boom sleeve to the penultimate boom sleeve, a pressure-bearing guide block is provided on the outer side of the lower end of each boom sleeve, and the guide pulley is slidably connected with the traction rope; The traction rope is provided with a main traction rope and a plurality of auxiliary traction ropes, the inner end of the main traction rope is fixed to the upper end of the second section boom sleeve, and the outer end of the main traction rope passes over the first pulley at the upper end of the first section boom sleeve and the second pulley at the lower end to be connected to the winding power machine; the pressure-bearing guide block of the first section boom sleeve is connected to one end of at least two auxiliary traction ropes, and the other ends of the two auxiliary traction ropes pass over the guide pulley of the second section boom sleeve and extend downward, and are fixed to the upper end of the third section boom sleeve; the pressure-bearing guide block of the second section boom sleeve is connected to one end of at least two auxiliary traction ropes, and the other ends of the two auxiliary traction ropes pass over the guide pulley of the third section boom sleeve and extend downward, and are fixed to the upper end of the fourth section boom sleeve; The basket mechanism includes a base fixed to the lower end of the lowest hanging rod sleeve, the base having an axial hole in the middle and multiple screw holes on the edge, the multiple screw holes are connected to a load-bearing seat through corresponding bolts and nuts, and a space is provided between the base and the load-bearing seat, the lower end of the lowest rotating shaft extends downward through the axial hole, and is connected to a gear disposed in the space between the base and the load-bearing seat, the gear is meshed with teeth of at least two tooth handles, and each tooth handle is rotatably arranged on a bolt corresponding to the base and the load-bearing seat; The driving mechanism comprises a top seat fixed to the top of the uppermost boom sleeve, which has an axial hole in the middle and a plurality of screw holes on the side. Bolts are arranged in the plurality of screw holes, and a wheel seat with a traction pulley is fixed by bolts and nuts. The pulley is slidably connected with the traction rope. The top end of the rotating shaft at the uppermost end passes through the axial hole in the middle of the top seat and extends upward to be connected to the rotating motor. The top seat is fixed on a movable bracket on the top of the factory building; During operation, after the telescopic grabbing device is moved into position along the mobile frame on the top of the plant, the main traction rope is controlled to descend by the winding power machine, so that the second and third sections of the boom sleeves are successively lowered, and the second and third sections of the rotating shafts are also lowered, so that the length of the entire device is lengthened until the basket clamping mechanism extends into the opening on the top of the extraction basket. Driven by the rotating motor, the rotating shaft rotates forward to drive the gear to rotate clockwise, so that the tooth handle meshing with the gear rotates in the opposite direction around the bolt, so that the handle of the tooth handle extends outward and is clamped in the opening on the top of the extraction basket. The extraction basket is grabbed in the process; when the main traction rope is controlled to rise by the winding power machine, the second section of the boom sleeve and the second section of the rotating shaft are driven to rise, and as the second section of the boom sleeve and the rotating shaft rise, the third section of the boom sleeve and the third section of the rotating shaft are driven to rise synchronously through the auxiliary traction rope to shorten the length of the entire device, and the extraction basket is lifted to the specified position and then lowered. The rotating shaft rotates in the opposite direction, driving the gear to rotate counterclockwise, so that the tooth handle meshing with the gear rotates forward around the bolt to retract the handle of the tooth handle inward, releasing the clamping of the extraction basket.

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