CN211292044U - A tower crane type grain skewer - Google Patents

Abstract

The utility model provides a tower crane type grain skewer; the bottom of a vertical column casing of a lifting column is fixed, a telescopic inner tube extends into the vertical column casing from the upper end of the vertical column casing, the cylinder body of a telescopic oil cylinder is fixed with the vertical column casing, and a piston The rod is fixed with the telescopic inner tube; the rotating arm is set on the upper end of the telescopic inner tube through the rotating mechanism, the bearing seat of the rotating mechanism is fixed on the upper end of the telescopic inner tube, the rotating column is matched with the bearing of the bearing seat, and the rotating motor drives the rotating column to rotate through the bevel gear; The rack of the moving mechanism is fixed on the rotating arm, the traveling gear is mounted on the frame, the traveling gear cooperates with the rack, and the deceleration motor drives the traveling gear; the cylinder block of the skewer cylinder of the skewer mechanism is fixed with the frame and the piston rod is connected to the skewer. The sample rod is fixed, the sample rod is provided with a cavity, the sample rod is provided with a sample hole, and the upper end of the cavity is communicated with an external negative pressure source. The lifting column drives the rotating arm and the skewering mechanism to rise and fall, the rotating mechanism drives the rotating arm to be above the transport vehicle, and the moving mechanism makes the skewering mechanism reach the sampling point.

Description

A tower crane type grain skewer

technical field

The utility model relates to a grain skewer prototype machine, in particular to a tower crane type grain skewer prototype machine.

Background technique

At present, after the domestic purchase of various grains, in the process of storage, it is usually necessary to cut the grains for inspection. Incoming grain transportation is mainly packaged transportation and bulk transportation. The packaged screeds used for packing the incoming grain samples can only pick up the surrounding and the top, but cannot pick up the grain in the center of the carriage. Quality control relies on the on-site supervision and identification of the warehousing and unloading, which is time-consuming and labor-intensive. For bulk grain samples, conventional bulk grain samplers can only be manually lifted to the top of the 2m-4m high truck for sample collection, which is very dangerous and inefficient. At the same time, it is directly contacted with grains, polluted by dust, and personal damage.

There are many kinds of skewers in the prior art. The skewers can extract the grain from the grain pile, and then transport the grain to the grain collection box through the pipeline, and then use the subsequent detection means to detect the grain.

However, the existing skewering machine cannot flexibly adjust the position of the sticking rod according to the operating environment, and can only cooperate with the grain transporter, which causes inconvenience and affects the cutting efficiency. Moreover, the existing skewering machine cannot be directly applied to the vehicle due to its small size. Uncovered transport vehicle for packaged grain and bulk grain.

Utility model content

The technical problem to be solved by the utility model is to provide a tower crane type grain skewer which can flexibly change the spatial position of the skewer rod.

In order to solve the above-mentioned technical problems, the utility model provides a tower crane type grain skewer prototype;

Including rotating arm, lifting column, rotating mechanism, moving mechanism and several sampling mechanisms;

The lifting column includes a column casing, a telescopic inner tube and a telescopic oil cylinder. The bottom of the column casing is fixed on the raft structure, the telescopic inner tube extends into the column casing from the upper end opening of the column casing, and the telescopic oil cylinder is arranged in the column casing. , the cylinder body of the telescopic cylinder is fixed with the column casing, the piston rod of the telescopic cylinder is fixed with the telescopic inner tube, and the telescopic direction of the telescopic cylinder is consistent with the vertical direction;

The rotating arm is arranged on the upper end of the telescopic inner tube of the lifting column through a rotating mechanism. The rotating mechanism includes a rotating motor, a rotating column, a bearing seat, a driving helical bevel gear and a driven helical bevel gear, and the bearing seat is fixedly connected to the lifting column. The upper end of the telescopic inner tube of the column, the rotating column is on the upper side of the bearing seat, and the bearing is matched between the rotating column and the bearing seat. The transmission axis of the rotating column is in the vertical direction, and the driven spiral bevel gear is fixed to the side wall of the rotating column. The moving helical bevel gear meshes with the driving helical bevel gear, the driving helical bevel gear is driven by a rotating motor, the rotating arm is fixedly connected with the rotating column, and the distal end of the rotating arm extends horizontally out of the side of the lifting column;

The moving mechanism includes a frame, a deceleration motor, at least one rack and several traveling gears, the rack is fixedly connected to the rotating arm, the direction of the rack is consistent with the length direction of the rotating arm, and the traveling gear is mounted on the frame , the traveling gear is matched with the rack, and the deceleration motor drives the traveling gear;

The skewer mechanism includes a skewer oil cylinder and a skewer rod, the cylinder body of the skewer cylinder is fixed with the frame of the moving mechanism, the piston rod of the skewer cylinder is fixedly connected with the skewer rod, and the telescopic direction of the skewer cylinder is vertical. The cutting rod is provided with a cavity, the lower part of the cutting rod is provided with a cutting hole communicating with the cavity, and the upper end of the cavity is communicated with an external negative pressure source.

After adopting such a structure, taking the structure of the tower crane as a model, the rotating arm and the sampling mechanism are driven up and down by the lifting column, the rotating arm is driven to be directly above the transport vehicle by the rotating mechanism, and finally the sampling mechanism is made to reach the sampling point through the moving mechanism.

Realize that the skewer mechanism of the novel tower crane type grain skewer can move in space in the three-dimensional coordinate plane, and can perform manual operation or automatic operation to complete the skewer operation.

Among them, the lifting column can move up and down, realize the up and down movement of the rotating arm, and carry out sampling according to grain trucks of different heights, thereby expanding the adaptability of the working environment of the new tower crane type grain skewer prototype. The meshing of the rack and the traveling gear drives the moving mechanism to move, which can achieve the purpose of precise positioning.

Preferably, a high-definition camera is installed at the end of the rotating arm of the novel tower crane type grain skewer, and the high-definition camera is aimed at the lower side area of the skewer mechanism.

After adopting such a structure, the high-definition camera can automatically identify the impurities, color and imperfection of grains on the grain truck, which is convenient for inspectors to fully understand the grain information.

Preferably, the proximal end of the rotating arm of the new tower crane type grain skewer also extends horizontally to the side of the lifting column, and the distance between the proximal end of the rotating arm and the rotating column is smaller than the distance between the distal end of the rotating arm and the rotating column. , the proximal end of the rotating arm is provided with a counterweight.

Preferably, the driving helical bevel gear of the novel tower crane type grain skewer is mounted on the transmission shaft, the transmission shaft is supported by the bearing on the side of the bearing seat, the rotating motor is fixedly connected with the bearing seat, and the output shaft of the rotating motor and the transmission shaft pass through Chain drive connection.

After adopting such a structure, the transmission mode of the rotating mechanism is more specific and can better meet the actual operation needs.

Preferably, the rotating arm of the novel tower crane type grain skewer is provided with at least one chute, and the direction of the chute is consistent with the direction of the rack of the moving mechanism, and at least one pulley is installed on the side of the frame of the moving mechanism, so The pulley is in one-to-one correspondence with the chute, and the pulley is matched with the chute.

After adopting such a structure, the pulley cooperates with the chute on the rotating arm to realize the accurate movement and positioning of the moving mechanism, and at the same time, the movement stability of the moving mechanism is ensured and the shaking is reduced.

Preferably, the frame of the mobile mechanism of the novel tower crane type grain skewer is fixedly connected with several fixing brackets, and the cylinder block of the skewering mechanism is fixed to the frame through several fixing brackets.

Preferably, a guide sleeve is fixedly connected to the side of the sample oil cylinder of the sample sample mechanism of the novel tower crane type grain sampler, and the lower end of the sample rod passes through the guide sleeve in the vertical direction.

Description of drawings

Fig. 1 is the use state diagram of the tower crane type grain skewer prototype machine embodiment provided by the utility model;

Fig. 2 is the structural representation of the lifting column of the embodiment of the tower crane type grain skewer provided by the utility model;

Fig. 3 is the structural schematic diagram of the rotating mechanism of the embodiment of the tower crane type grain skewer provided by the present utility model;

Fig. 4 is the bottom view of the moving mechanism of the embodiment of the tower crane type grain skewer provided by the utility model;

5 is a view of the cooperation between the moving mechanism and the rotating arm of the tower crane type grain skewer example provided by the present utility model;

FIG. 6 is a schematic diagram of a moving mechanism and a skewer mechanism according to an embodiment of the tower crane type grain skewer provided by the present invention.

Detailed ways

As shown in Figures 1 to 6

The tower crane type grain skewer provided by the utility model includes a rotating arm 2, a lifting column 1, a rotating mechanism 3, a moving mechanism 4 and two sets of skewering mechanisms.

The lifting column 1 includes a column casing 11, a telescopic inner tube 12 and a telescopic oil cylinder 13. The bottom of the column casing 11 is fixed to the ground by embedded bolts, and the telescopic inner tube 12 extends from the upper end opening of the column casing 11 into the column casing 11. The telescopic oil cylinder 13 is arranged in the column casing 11, the cylinder body of the telescopic oil cylinder 13 and the lower part of the column casing 11 are hingedly fixed by a pin shaft, and the piston rod of the telescopic oil cylinder 13 extends into the telescopic inner tube 12 and the telescopic inner tube 12. The space is hinged and fixed by a pin shaft, and the telescopic direction of the telescopic oil cylinder 13 is consistent with the vertical direction.

The telescopic oil cylinder 13 is driven by the hydraulic system 14, and the motor of the hydraulic system 14 drives the oil pump to rotate, the low-pressure hydraulic oil is replaced with high-pressure hydraulic oil, and the mechanical energy is converted into the pressure energy of the hydraulic oil; the direction, pressure and flow are realized through the valve combination and the hydraulic hose. Adjustment; hydraulic oil is transmitted to the telescopic oil cylinder 13 through the external pipeline, and the pressure energy is converted into the mechanical energy of the telescopic oil cylinder 13; the force and speed of the telescopic oil cylinder 13 are controlled by the flow regulating valve to complete the rise and fall of the sampling mechanism.

The rotating arm 2 is arranged on the upper end of the telescopic inner tube 12 of the lifting column 1 through a rotating mechanism 3. The rotating mechanism 3 includes a rotating motor 37, a rotating column 32, a bearing seat 31, a driving helical bevel gear 35 and a driven helical bevel gear 34. The bearing seat 31 is fixed on the upper end of the telescopic inner tube 12 of the lifting column 1 by bolts, the rotating column 32 is located on the upper side of the bearing seat 31, and the rotating column 32 and the bearing seat 31 are matched by the pressure bearing 33, and the driven helical bevel gear 34 is connected to the bearing seat 31. The side wall of the rotating column 32 is fixed, the driven helical bevel gear 34 meshes with the driving helical bevel gear 35, the driving helical bevel gear 35 is mounted on the transmission shaft 36, the transmission shaft 36 is supported by the bearing on the side of the bearing seat 31, and rotates The motor 37 and the bearing seat 31 are fixed by bolts, the output shaft of the rotary motor 37 is connected with the transmission shaft 36 through a chain transmission mechanism 38, and the rotary motor 37 drives the helical bevel gear 35 to run.

The rotating arm 2 and the rotating column 32 are welded and fixed. The distal end of the rotating arm 2 extends horizontally to the side of the lifting column 1, and the proximal end of the rotating arm 2 also extends horizontally to the side of the lifting column 1. The proximal end of the rotating arm 2 extends to the rotating column 32. The distance between them is smaller than the distance between the distal end of the rotating arm 2 and the rotating column 32, the proximal end of the rotating arm 2 is provided with a counterweight 21, and the rotating arm 2 is provided with two sliding grooves (not shown in the figure), The course of the chute corresponds to the course of the rack 41 of the moving mechanism 4 .

A high-definition camera 22 is installed on the bottom of the far end of the rotating arm 2, and the high-definition camera 22 is aimed at the lower side area of the skewer mechanism.

The moving mechanism 4 includes a frame 43 , a reduction motor 44 , two racks 41 and four traveling gears 42 . The two racks 41 are welded to the rotating arm 2 respectively, and the direction of the racks 41 is consistent with the length of the rotating arm 2 . , the four traveling gears 42 are respectively installed on the bottom of the frame 43 in two groups, the four traveling gears 42 are respectively matched with the rack 41, the reduction motor 44 drives two of the traveling gears 42 to run, and the traveling gears 42 drive the frame 43. Moving along the direction of the rack 41, two pulleys 45 are respectively installed on both sides of the frame 43 of the moving mechanism 4, and the four pulleys 45 are set in two groups. slot fit.

When the front part of the frame 43 hits the limit switch, the travel mechanism 4 decelerates and stops moving forward, which protects the travel mechanism 4 .

Each group of skewering mechanisms includes a skewer cylinder 51 and a skewer rod 52. The telescopic direction of the skewer cylinder 51 is the vertical direction, and the piston rod of the skewer cylinder 51 is welded and fixed to the upper part of the skewer rod 52, so that the skewer rod is vertical Downward and parallel to the piston rod and staggered by a distance, the sampling rod 52 is provided with a cavity, the lower part of the sampling rod 52 is provided with a sampling hole communicated with the cavity, the upper end of the cavity is communicated with an external negative pressure source, and the sampling mechanism A guide sleeve 53 is fixedly connected to the side of the cylinder body of the sample oil cylinder, and the lower end of the sample rod 52 passes through the guide sleeve 53 in the vertical direction.

A bottoming and rebound mechanism (pressure sensor) is installed on the sample rod 52 to protect the sample rod 52. The rod cylinder 51 is a small telescopic hydraulic cylinder, and a laser ranging sensor is installed on the rod cylinder 51. The cutting depth of the cutting rod 52 can be automatically controlled, and the depth of the cutting rod 52 inserted into the grain can be adjusted according to the height of the bottom plate of the vehicle box, so as to prevent the cutting rod 52 from falling too far to touch the bottom of the car box and damaging the cutting rod 52.

Two fixing brackets 46 are respectively welded on both sides of the frame 43 of the moving mechanism 4 .

Before use, adjust the initial height of the rotating arm 2 and the sampling mechanism by adjusting the telescopic oil cylinder 13 of the lifting column 1, and the bottom end of the sampling rod 52 is higher than the height of the transport vehicle;

Start the rotating motor 37 of the rotating mechanism 3, drive the helical bevel gear 35 to mesh with the driven helical bevel gear 34, and the rotating column 32 drives the rotating arm 2 to rotate until the rotating arm 2 is directly above the transport vehicle;

Then start the deceleration motor 44 of the moving mechanism 4, and the frame 43 travels along the direction of the rack 41 until the two sets of skewering mechanisms are on the upper side of the transport vehicle, and the new tower crane type grain skewer is at the cutting point.

During the sampling operation, start the external grain suction device, and then start the rod cylinder 51. When the sampling rod 52 is inserted into the grain, the grain suction device makes the grain suction pipe and the sampling rod 52 form a certain negative pressure. The skewer hole enters into the grain suction device through the grain suction pipe, and the skewer operation is completed.

The above is only an embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present invention, several modifications and improvements can be made, which should also be It is regarded as belonging to the protection scope of the present invention.

Claims (7)

1. a tower crane type grain skewer prototype is characterized by: Including rotating arm, lifting column, rotating mechanism, moving mechanism and several sampling mechanisms; The lifting column includes a column casing, a telescopic inner tube and a telescopic oil cylinder. The bottom of the column casing is fixed on the raft structure, the telescopic inner tube extends into the column casing from the upper end opening of the column casing, and the telescopic oil cylinder is arranged in the column casing. , the cylinder body of the telescopic cylinder is fixed with the column casing, the piston rod of the telescopic cylinder is fixed with the telescopic inner tube, and the telescopic direction of the telescopic cylinder is consistent with the vertical direction; The rotating arm is arranged on the upper end of the telescopic inner tube of the lifting column through a rotating mechanism. The rotating mechanism includes a rotating motor, a rotating column, a bearing seat, a driving helical bevel gear and a driven helical bevel gear, and the bearing seat is fixedly connected to the lifting column. The upper end of the telescopic inner tube of the column, the rotating column is on the upper side of the bearing seat, and the bearing is matched between the rotating column and the bearing seat. The transmission axis of the rotating column is in the vertical direction, and the driven spiral bevel gear is fixed to the side wall of the rotating column. The moving helical bevel gear meshes with the driving helical bevel gear, the driving helical bevel gear is driven by a rotating motor, the rotating arm is fixedly connected with the rotating column, and the distal end of the rotating arm extends horizontally out of the side of the lifting column; The moving mechanism includes a frame, a deceleration motor, at least one rack and several traveling gears, the rack is fixedly connected to the rotating arm, the direction of the rack is consistent with the length direction of the rotating arm, and the traveling gear is mounted on the frame , the traveling gear is matched with the rack, and the deceleration motor drives the traveling gear; The skewer mechanism includes a skewer oil cylinder and a skewer rod, the cylinder body of the skewer cylinder is fixed with the frame of the moving mechanism, the piston rod of the skewer cylinder is fixedly connected with the skewer rod, and the telescopic direction of the skewer cylinder is vertical. The cutting rod is provided with a cavity, the lower part of the cutting rod is provided with a cutting hole communicating with the cavity, and the upper end of the cavity is communicated with an external negative pressure source. 2. a kind of tower crane type grain skewer prototype machine according to claim 1 is characterized in that: A high-definition camera is installed at the end of the rotating arm, and the high-definition camera is aimed at the lower side area of the skewer mechanism. 3. a kind of tower crane type grain skewer prototype machine according to claim 1 is characterized in that: The proximal end of the rotating arm also extends horizontally to the side of the lifting column. The distance between the proximal end of the rotating arm and the rotating column is smaller than the distance between the distal end of the rotating arm and the rotating column. The proximal end of the rotating arm is provided with a counterweight block. . 4. a kind of tower crane type grain skewer prototype machine according to claim 1 is characterized in that: The drive helical bevel gear is mounted on the drive shaft, the drive shaft is supported on the side of the bearing seat through a bearing, the rotating motor is fixedly connected with the bearing seat, and the output shaft of the rotating motor and the drive shaft are connected by a chain transmission mechanism. 5. a kind of tower crane type grain skewer prototype machine according to claim 1 is characterized in that: The rotating arm is provided with at least one chute, and the direction of the chute is consistent with the direction of the rack of the moving mechanism. At least one pulley is installed on the side of the frame of the moving mechanism, and the pulley is in one-to-one correspondence with the chute, The pulley is matched with the chute. 6. a kind of tower crane type grain skewer prototype machine according to claim 1 is characterized in that: The frame of the moving mechanism is fixedly connected with a plurality of fixing brackets, and the sampling oil cylinder of the sampling mechanism is fixed to the frame through a plurality of fixing brackets. 7. a kind of tower crane type grain skewer prototype machine according to claim 1 is characterized in that: A guide sleeve is fixedly connected to the side of the sample oil cylinder of the sample sample mechanism, and the lower end of the sample rod passes through the guide sleeve along the vertical direction.

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