Device for realizing automatic sample storage of coking solid coal cake

Abstract

The utility model discloses a device for realizing automatic sample storage of a coking solid coal cake. The device comprises a sample storage device and a sampling device, the sample storage device comprises a sample storage turntable; a plurality of sample storage tanks with upward openings are arranged on the sample storage turntable in a circumferential array, and the sample storage tanks synchronously rotate along with the sample storage turntable; the sampling device comprises a rotating arm, a lifting device and a sampler; one end of the rotating arm is connected with a vertical rotating shaft, and the other end is connected with a sampler through a lifting device; when the sampler synchronously rotates to a certain position along with the vertical rotating shaft, the sampler reaches a discharging position, and on the basis that the sampler is located at the discharging position, a plurality of sample storage tanks with upward openings reach the position under the sampler one by one in the process that the sample storage turntable rotates around the axis; and the tail end of the rotating arm is in linkage connection with the sample storage turntable through a linkage structure, so that the sampled coal cake can be continuously sampled, and different samples can be accurately and completely separated and stored.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling of coking stamped coal cakes. Background Art

[0002] Coking stamped coal cakes refer to pressing pulverized coal or coal blocks into solid coal cakes under certain conditions according to different uses of the coal cakes for coke making in the coking production process. Since the required densities of coal cakes for different uses are different, it is necessary to sample the coking stamped coal cakes to detect the density of the coking stamped coal cakes.

[0003] The existing sampling device technology for coking stamped coal cakes can quickly and stably divide and sample coal blocks, which is convenient for control. In addition, it can cut the bottom of the coal cake, which is beneficial to maintaining the integrity of the coal cake and facilitating the next inspection work of the coal cake. However, there are still the following defects in the existing technical solutions; when the device is in use, it is necessary to manually sample the coal cake, and it is not convenient to continuously store the samples. Summary of the Invention

[0004] Object of the Invention: The utility model provides an automatic sample storage device for coking solid coal cakes, which solves the problem of inconvenient sampling and sample storage in the existing technology through automatic sampling and storage.

[0005] Technical Solution: To achieve the above object, an automatic sample storage device for coking solid coal cakes of the utility model includes a sample storage device and a sampling device; the sample storage device includes a sample storage turntable; a plurality of sample storage tanks with upward openings are arranged in a circumferential array on the sample storage turntable, and the sample storage tanks rotate synchronously with the sample storage turntable; the sampling device includes a rotating arm, a lifting device and a sampler; one end of the rotating arm is connected with a vertical rotating shaft, and the other end is connected with the sampler through the lifting device; when the sampler rotates synchronously with the vertical rotating shaft to a certain position, the sampler reaches the feeding position. On the basis of the feeding position, during the rotation of the sample storage turntable around the axis, a plurality of sample storage tanks with upward openings reach directly below the sampler one by one; the end of the rotating arm is connected with the sample storage turntable through a linkage structure, and when the rotating arm rotates one circle with the vertical rotating shaft, the sample storage turntable is driven to rotate a certain angle through the linkage structure every time.

[0006] Further, let the number of sample storage tanks be N, and the angle by which the sample storage turntable is driven to rotate through the linkage structure every time the rotating arm rotates one circle with the vertical rotating shaft is (360 / N)°.

[0007] Further, the linkage structure includes a gear and an arc rack; the gear is coaxially connected to the sample storage turntable through a connecting shaft; the arc rack is fixedly connected to the rotating arm through a connecting arm, and the axis of the arc rack coincides with the axis of the vertical rotating shaft; when the sampler is at the feeding position, the middle part of the arc rack meshes with the gear.

[0008] Further, the sampler includes a sampler support, a sampling cylinder, and a pushing device; the sampler support is connected to the lifting device; the sampling cylinder is vertically and fixedly connected to the sampler support, and the inside of the sampling cylinder is a sampling chamber; the pushing device is arranged above the sampling cylinder. Based on the feeding position of the sampler, the downward pushing action of the pushing device can push the coal cake sample in the sampling chamber downward.

[0009] Further, the lifting device includes a vertical electric telescopic device A installed on the rotating arm; the end of the telescopic rod A of the electric telescopic device A is fixedly connected to the sampler support.

[0010] Further, the vertical rotating shaft is driven by a driving device so that the vertical rotating shaft can rotate along its own axis.

[0011] Further, the pushing device includes a vertical electric telescopic device B installed above the sampling cylinder; the vertical electric telescopic device B is fixed by a bracket; the end of the telescopic rod B of the electric telescopic device B is connected to a pushing template. When the telescopic rod B retracts upward, the pushing template is located at the upper end of the sampling chamber.

[0012] Further, the arc rack includes an arc tooth body seat and several tooth bodies. There are several installation grooves at the positions of the tooth bodies of the arc tooth body seat, and each installation groove corresponds to a tooth body; the root of the tooth body is movably located in the corresponding installation groove; hinge shafts are arranged at the upper and lower ends of each tooth body, and the hinge shafts are hinged to the hinge holes in the installation groove. One side of each tooth body is elastically pressed against the inner wall of one side of the installation groove by a spring, and each tooth body abuts against the other side of the installation groove under the pressing of the spring.

[0013] Further, the sample storage turntable includes a turntable body; there are several placement grooves at the positions of the sample storage cans on the turntable body, and each placement groove corresponds to a sample storage can; a protective cover is arranged outside the turntable body, and the turntable body is placed in the protective cover; sample storage holes, connecting shaft holes, and sampling holes are opened on the protective cover; a sampling cover plate is embedded on the protective cover.

[0014] Technical effects: The sampling device can be moved in space through the rotating arm and the lifting device, and different positions of the sampled coal cake sample can be continuously sampled; through the linkage structure between the sampling device and the sample storage device, the sample storage device can replace the sample storage can with the rotation of the sampling device, realizing the classified storage of samples; through the precise meshing of the arc rack and the gear, the sample taken by the sampling device can accurately enter the sample storage device through the pushing device; because only one motor is used in this solution, in the linkage device composed of the arc rack and the gear, the angle by which the gear drives the sample storage device to rotate after each meshing is fixed. Therefore, it can be ensured that the sampling device and the sample storage can are on the same axis, and thus each sample taken can correspond to a separate sample storage can. Description of the Drawings

[0015] Figure 1 Schematic structural diagram of an automatic sample storage device for coking solid coal cakes according to the present utility model;

[0016] Figure 2 Schematic diagram of the feeding position of an automatic sample storage device for coking solid coal cakes according to the present utility model;

[0017] Figure 3 Schematic structural diagram of the sampling device of an automatic sample storage device for coking solid coal cakes according to the present utility model;

[0018] Figure 4 Schematic enlarged diagram of the circular arc rack of an automatic sample storage device for coking solid coal cakes according to the present utility model;

[0019] Figure 5 Schematic structural diagram of the sample storage device of an automatic sample storage device for coking solid coal cakes according to the present utility model. Specific embodiments

[0020] The present utility model will be further described below with reference to the drawings.

[0021] As Figures 1-5 shown, an automatic sample storage device for coking solid coal cakes includes a sample storage device 1 and a sampling device 2; both the sample storage device 1 and the sampling device 2 are arranged on the plane of the working platform, and the working platform can be a movable platform, a walking robot with a plane, or other platforms that can ensure the smooth operation of the device; the sample storage device 1 includes a sample storage turntable 11; a number of sample storage tanks 12 with openings facing upwards are arranged in a circumferential array on the sample storage turntable 11, and the sample storage tanks 12 rotate synchronously with the sample storage turntable 11; the sampling device 2 includes a rotating arm 21, a lifting device 22, and a sampler 23; one end of the rotating arm 21 is connected to a vertical rotating shaft 24, and the other end is connected to the sampler 23 through the lifting device 22; the vertical rotating shaft 24 is driven by a driving device 27 to enable the vertical rotating shaft 24 to rotate along its own axis; the driving device 27 can be a motor, a motor, etc.; when the sampler 23 rotates synchronously with the vertical rotating shaft 24 to a certain position, the sampler 23 reaches the feeding position, as Figure 2 shown, on the basis of the feeding position of the sampler 23, during the rotation of the sample storage turntable 11 around the axis, a number of sample storage tanks 12 with openings facing upwards reach directly below the sampler 23 one by one; the end of the rotating arm 21 is linked to the sample storage turntable 11 through a linkage structure 31, and when the rotating arm 21 rotates one circle along with the vertical rotating shaft 24, it drives the sample storage turntable 11 to rotate a certain angle through the linkage structure 31 every time. Suppose the number of sample storage tanks 12 is N, and the angle by which the sample storage turntable 11 is driven to rotate through the linkage structure 31 every time the rotating arm 21 rotates one circle along with the vertical rotating shaft 24 is (360 / N)°.

[0022] The linkage structure 31 includes a gear 13 and an arc rack 25; the gear 13 is coaxially connected to the sample storage turntable 11 through a connecting shaft 14; the arc rack 25 is fixedly connected to the rotating arm 21 through a connecting arm 26, and the teeth 252 on the arc rack 25 face the direction of the gear 13, and the axis of the arc rack 25 coincides with the axis of the vertical rotating shaft 24; the arc rack 25 meshes with the gear 13; at the beginning of meshing, the arc rack 25 rotates the gear 13, and the gear 13 drives the sample storage turntable 11 to rotate through the transmission rod 14; when the gear 13 meshes with the middle of the arc rack 25, the rotating arm 21 drives the sampler 23 to rotate to the blanking position, as Figure 2 shown. At this time, the sampling cylinder 232 and the sample storage tank 12 are just on the same axis. At the same time, the control drive device 27 is stopped and the pushing device 233 on the sampler 23 is started. The pushing device 233 pushes out the taken coal cake sample from the sampling cylinder 232, and the taken coal cake sample falls into the sample storage tank 12; after the taken coal cake sample enters the sample storage tank 12, as Figure 3 shown. After the pushing device 233 is reset, the drive device 27 is restarted to perform the next sampling and sample storage.

[0023] The sampler 23 includes a sampler support 231, a sampling cylinder 232, and a pushing device 233; the sampler support 231 is connected to the lifting device 22; the sampling cylinder 232 is vertically and fixedly connected to the sampler support 231, and the inside of the sampling cylinder 232 is a sampling cavity 2321, as Figure 1 shown. When the sampler 23 rotates to the upper part of the coal cake sample to be sampled through the rotating arm 21 along with the vertical rotating shaft 24, the lifting device 22 presses the sampling cylinder 232 onto the coal cake sample to be sampled through the sampler support 231. After the sampling cylinder 232 presses and shears the coal cake sample to be sampled, a sample with the same diameter as the sampling cylinder 232 can be retained in the sampling cavity 2321.

[0024] The pushing device 233 is arranged above the sampling cylinder 232. The pushing device 233 includes a B vertical electric telescopic device 2331 installed above the sampling cylinder 232; the B vertical electric telescopic device 2331 is fixed through a bracket 2333; the end of the B telescopic rod 2334 of the B electric telescopic device 2331 is connected to a push plate 2335. When the B telescopic rod 2334 retracts upward, the push plate 2335 is located at the upper end of the sampling cavity 2321, as Figure 2 shown. Based on the blanking position of the sampler 23, the downward pushing action of the B telescopic rod 2334 of the B electric telescopic device 2331 can drive the push plate 2335 to push the coal cake sample in the sampling cavity 2321 downward.

[0025] The lifting device 22 includes a vertical electric telescopic device 221A installed on the rotating arm 21; the end of the telescopic rod 2211 of the electric telescopic device 221A is fixedly connected to the sampler support 231. As Figure 1 shown, when the sampler 23 rotates to the upper part of the sample to be sampled with the rotating arm 21 along the vertical rotating shaft 24, the telescopic rod 2211 of the electric telescopic device 221A extends downward, and drives the sampling cylinder 232 to move downward at a constant speed through the sampler support 231. When the lower end of the sampling cylinder 232 contacts the sampled coal cake sample, the telescopic rod 2211 of the electric telescopic device 221A continues to drive the sampling cylinder 232 to move downward at a constant speed, so that the sampling cylinder 232 presses and shears the sampled coal cake sample. By moving downward at a constant speed, it is ensured that the pressing and shearing force distribution of the sampling cylinder 232 on the collected sample is uniform, so that the sample collected by pressing and shearing by the sampling cylinder 232 is a circular sample with the same diameter as the sampling cylinder 232. Finally, the collected sample is retained in the sampling cavity 2321. Subsequently, the telescopic rod 2211 of the electric telescopic device 221A drives the sampling cylinder 232 to move upward at a constant speed through the sampler support 231, preventing the inertia caused by uneven speed from causing the collected sample to fall off from the sampling cylinder 232.

[0026] The sample storage turntable 11 includes a turntable body 111; a number of placement slots 112 are provided at the positions of each sample storage tank 12 on the turntable body 111, and each placement slot 112 corresponds to a sample storage tank 12; for the convenience of taking, a handle can be provided at the opening of the sample storage tank 12, and at the same time, a fixing slot corresponding to the handle is provided at the upper opening of the placement slot; the turntable body 111 passes through the shaft hole on the working platform through the rotating shaft 15 at its bottom, so that the turntable body 111 is rotationally connected to the working platform; at the same time, the surface of the working platform is in sliding friction fit with the bottom surface of the turntable body 111, so that the frictional force generated between the working platform and the turntable body 111 can ensure that the sample storage turntable 11 will not rotate independently by itself when it is not subjected to the driving force from the gear 13. Thus, it is ensured that the sample storage turntable 11 can only rotate through the meshing of the arc tooth body 25 and the gear 13. Therefore, after the rotating arm 21 rotates one circle along the vertical rotating shaft 24 and drives the sample storage turntable 11 to rotate a certain angle through the linkage structure 31, any one of the several sample storage tanks 12 with openings facing upward can accurately reach directly below the sampler 23 one by one. When the gear 13 meshes with the middle part of the arc rack 25, the sampling cylinder 232 and the sample storage tank 12 are just on the same axis, and the pushing device 233 on the sampler 23 synchronously pushes the taken coal cake sample out of the sampling cylinder 232, and the taken coal cake sample accurately falls into the sample storage tank 12.

[0027] The working principle of a sampling device for an automatic sample storage device for coking solid coal cakes of the present utility model is as follows:

[0028] When sampling and testing the coking stamp coal cake is required, as Figure 1 shown, first control the driving device 27 to drive the vertical rotating shaft 24 to rotate. The vertical rotating shaft 24 drives the sampler 23 to directly above the sample to be collected through the rotating arm 21, and then control the driving device 27 to stop. Then start the lifting device 22 to drive the sampler 23 to move downward at a constant speed, so that the sampling cylinder 232 on the sampler 23 contacts the sample to be collected; when the sampling cylinder 232 contacts the sample to be collected, the lifting device 22 still drives the sampler 23 to move downward at a constant speed, so that the sampling cylinder 232 generates a uniformly distributed pressing and shearing force on the sample to be collected. This pressing and shearing finally shears the collected sample into a circle with the same diameter as the sampling cylinder 232 and keeps the collected sample in the sampling cavity 2321 of the sampler 23. Subsequently, let the lifting device 22 drive the sampler 23 to move upward at a constant speed to prevent the inertia caused by uneven speed from causing the collected sample to fall off from the sampling cavity 2321; then start the driving device 27, and the vertical rotating shaft 24 drives the sampler 23 to the position where the arc rack 25 just contacts the gear 13 through the rotating arm 21, and the arc rack 25 and the gear 13 start to mesh; at the beginning of the meshing, the arc rack 25 and the gear 13 rotate, and the gear 13 drives the sample storage turntable 11 to rotate through the transmission rod 14; when the gear 13 meshes with the middle of the arc rack 25, the rotating arm 21 drives the sampler 23 to rotate to the blanking position, as Figure 2 shown. At this time, the sampling cylinder 232 and the sample storage tank 12 are just on the same axis. At this moment, stop the driving device 27 and open the pushing device 233 on the sampler 23. The pushing device 233 can push out the taken coal cake sample from the sampling cylinder 232, and the taken coal cake sample falls into the sample storage tank 12; when the taken coal cake sample enters the sample storage tank 12, as Figure 3 shown, when the B telescopic rod 2334 of the pushing device 233 returns to the retracted position, restart the switch of the driving device 27 to perform the next sampling and sample storage.

[0029] After the sampling device 2 completes the second sampling according to the above process, the vertical rotating shaft 24 drives the sampler 23 to the position where the arc rack 25 just contacts the gear 13 through the rotating arm 21, and the arc rack 25 and the gear 13 start to mesh again; at the beginning of the second meshing, the arc rack 25 and the gear 13 rotate again, and the gear 13 drives the sample storage turntable 11 to rotate again through the transmission rod 14; when the gear 13 meshes with the middle of the arc rack 25 again, the rotating arm 21 drives the sampler 23 that has completed the second sampling to rotate to the blanking position for the second time. At the same time, driven by the arc rack 25, the sample storage turntable 11 rotates 360 / N° around the axis relative to the initial state, so that another sample storage tank 12 just reaches directly below the sampling cylinder 232. At this time, the sampling cylinder 232 and another sample storage tank 12 are just on the same axis. At this moment, control the driving device 27 to stop and start the pushing device 233 on the sampler 23, and the pushing device 233 can push the taken coal cake sample out of the sampling cylinder 232, and the taken coal cake sample falls into the sample storage tank 12; after the taken coal cake sample enters the sample storage tank 12, when the B telescopic rod 2334 of the pushing device 233 returns to the retracted position, restart the switch of the driving device 27 to perform the next sampling and sample storage.

[0030] Repeating the above process can realize continuous sampling of the coal cake to be sampled, and can accurately separate and store different taken samples to ensure the accuracy of the detection results.

[0031] However, since the sampler 23 needs to be rotated around the vertical rotating shaft 24 by the rotating arm 21 for one week every time when storing samples after each sampling in the above scheme, the efficiency is very low when sampling the same sampling point multiple times, and it increases the waste of energy consumption. If you want to solve these problems, the arc rack 25 and the gear 13 need to be meshed reversely. However, after the arc rack 25 and the gear 13 are meshed reversely, the sample storage turntable 11 will drive the sample storage tank 12 storing the previous sample to directly below the sampler 23 through the drive of the gear 13, thus causing the samples to be mixed and resulting in inaccurate detection results.

[0032] In the second embodiment, an optimized design is carried out on the arc rack 25: the arc rack 25 includes an arc tooth body seat 251 and a plurality of tooth bodies 252. A plurality of installation grooves 2511 are arranged at the positions of the tooth bodies 252 of the arc tooth body seat 251, and each installation groove 2511 corresponds to a tooth body 252, as Figure 4As shown, the roots of the respective tooth bodies 252 are movably arranged in the corresponding installation grooves 2511. Hinge shafts 2521 are arranged at the upper and lower ends of each tooth body 252. The hinge shafts 2521 are hinged to the hinge holes in the installation grooves 2511. One side of each tooth body 252 is elastically pressed against the inner wall of one side of the installation groove 2511 by a spring 2522. Each tooth body 252 abuts against the other side of the installation groove 2511 under the pressing of the spring 2522; in Figure 4 The enlarged Figure 1 side view of the tooth body 252 shows the spring for the convenience of demonstrating its structure. It should be noted that when the tooth body 252 is installed in the installation groove 2511, the side of the tooth body 252 with the spring 2522 is opposite to the side shown in Figure 4.

[0033] When the arc rack 25 meshes with the gear in the transmission direction of the above working process, since one side of each tooth body 252 is stably pressed against the inner wall of one side of the installation groove 2511 under the action of the spring 2522, in the above working process, during the forward rotation of the arc rack 25 around the vertical rotating shaft 24, when the rack 25 meshes with the gear 13, the arc rack 25 rotates normally with the rotation of the gear 13;

[0034] When the arc rack 25 meshes with the gear 13 in the direction opposite to the transmission direction of the above working process, since the elastic force of the spring 2522 is very small, the sample storage turntable 11 is restricted from rotating by the friction force between the bottom surface of the turntable body 111 and the working platform. At this time, the gear 13 cannot rotate. Under the relative pushing of the gear 13 in the static state, the tooth body 252 rotates around the hinge shaft 2521 in the installation groove 2511, and the tooth body 252 disengages from the gear 13, thereby realizing the one-way transmission between the arc rack 25 and the gear 13.

[0035] Therefore, because the arc rack 25 can only have one-way transmission with the gear 13, when sampling the same sampling point multiple times, the rotating arm 21 can be made to drive the sampler 23 to reciprocate only on the arc trajectory between the blanking position and the sampling position, without the rotating arm 21 rotating a full circle in each working process, thereby improving the sampling efficiency and reducing the working energy consumption.

[0036] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An automatic sampling device for coking solid coal cakes, characterized in that: It includes a sample storage device (1) and a sampling device (2); the sample storage device (1) includes a sample storage turntable (11); a number of sample storage cans (12) with openings facing upwards are arranged in a circumferential array on the sample storage turntable (11), and the sample storage cans (12) rotate synchronously with the sample storage turntable (11); the sampling device (2) includes a rotating arm (21), a lifting device (22) and a sampler (23); one end of the rotating arm (21) is connected to a vertical rotating shaft (24), and the other end is connected to the sampler (23) through the lifting device (22); when the sampler (23) rotates synchronously with the vertical rotating shaft (24) to a certain position, the sampler (23) reaches the material discharging position. On the basis of the material discharging position, during the rotation of the sample storage turntable (11) around its axis, a number of sample storage cans (12) with openings facing upwards reach directly below the sampler (23) one by one; the end of the rotating arm (21) is linked and connected to the sample storage turntable (11) through a linkage structure (31), and when the rotating arm (21) rotates one circle with the vertical rotating shaft (24), the sample storage turntable (11) is driven to rotate a certain angle through the linkage structure (31).

2. The automatic sampling device for coking solid coal cakes according to claim 1, wherein: Suppose the number of the sample storage cans (12) is N, and the angle by which the sample storage turntable (11) is driven to rotate through the linkage structure (31) when the rotating arm (21) rotates one circle with the vertical rotating shaft (24) is (360 / N)°.

3. The automatic sample storage device for coking solid coal cakes according to claim 1, characterized in that: The linkage structure (31) includes a gear (13) and an arc rack (25); the gear (13) is coaxially connected to the sample storage turntable (11) through a connecting shaft (14); the arc rack (25) is fixedly connected to the rotating arm (21) through a connecting arm (26), and the axis of the arc rack (25) coincides with the axis of the vertical rotating shaft (24); when the sampler (23) is in the material discharging position, the middle part of the arc rack (25) meshes with the gear (13).

4. The automatic sample storage device for coking solid coal cakes according to claim 1, characterized in that: The sampler (23) includes a sampler support (231), a sampling cylinder (232), and a pushing device (233); the sampler support (231) is connected to the lifting device (22); the sampling cylinder (232) is vertically and fixedly connected to the sampler support (231), and a sampling cavity (2321) is inside the sampling cylinder (232); the pushing device (233) is arranged above the sampling cylinder (232). On the basis of the material discharging position of the sampler (23), the downward pushing action of the pushing device (233) can push the coal cake sample in the sampling cavity (2321) downwards.

5. The automatic sampling device for coking solid coal cakes according to claim 1, characterized in that: The lifting device (22) includes a vertical electric telescopic device A (221) installed on the rotating arm (21); the end of the A telescopic rod (2211) of the electric telescopic device A (221) is fixedly connected to the sampler support (231).

6. The automatic sampling device for coking solid coal cakes according to claim 1, wherein: The vertical rotating shaft (24) is driven by a driving device (27) so that the vertical rotating shaft (24) can rotate along its own axis.

Images