Belt sampling machine for power plant

Abstract

The utility model relates to the field of belt sampling, and discloses a belt sampling machine for a power plant, which comprises a support table, an upper cover is inserted on the upper side of the support table, a reduction gearbox is arranged on the upper part of the support table, an output shaft on the rear side of the reduction gearbox is fixedly connected with a motor, and the motor is fixedly connected on the upper part of the support table. A discharging hopper is arranged on the lower side of the supporting table, a sampling hopper is arranged on the outer side of an output shaft on the left side of the reduction gearbox, a sliding mechanism is arranged on the outer side of the sampling hopper and comprises a sliding assembly and an auxiliary assembly, the sliding assembly comprises a mounting sleeve, and the upper portion of the mounting sleeve is attached to the lower side of the sampling hopper. According to the coal sampling device, the sliding mechanism and the sampling hopper are used in cooperation, when coal on a belt is conveyed, the rollers make direct contact with the belt, abnormal abrasion to the belt in the sampling process is effectively reduced, and the situation that the service life of the belt is shortened due to excessive friction is avoided.

Description

Technical Field

[0001] This utility model relates to the field of belt sampling, and in particular to a belt sampling machine for power plants. Background Technology

[0002] In the production and operation of power plants, it is crucial to obtain accurate quality information of fuels such as coal. As a key piece of equipment, belt samplers can collect representative samples from the conveyor belt, providing a basis for subsequent analysis and testing, thereby ensuring the stable and efficient operation of the power plant.

[0003] The sampling heads of belt samplers used in power plants are usually designed for heavy-duty applications to meet the needs of large-scale material transportation in power plants. They are generally made of high-strength wear-resistant steel, which can withstand the impact and wear of materials such as coal for a long time.

[0004] When conveyor belts transport coal and other fuels, the weight of the large amount of coal puts tremendous pressure on the belt. During operation, this pressure can cause the belt to vibrate. In this situation, the sampling head of the belt sampler inevitably rubs against the vibrating belt when collecting samples, which can damage the belt and affect its service life. Therefore, a belt sampler for power plants is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a belt sampling machine for power plants, which aims to improve the problem in the prior art that "when the sampling head of the belt sampling machine collects samples, friction between it and the vibrating belt will damage the belt and affect its service life".

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a belt sampling machine for power plants, including a support platform, a top cover inserted into the upper side of the support platform, a reduction gearbox provided on the upper part of the support platform, a motor fixedly connected to the rear output shaft of the reduction gearbox, the motor fixedly connected to the upper part of the support platform, a discharge hopper provided on the lower side of the support platform, a sampling hopper provided on the outer side of the left output shaft of the reduction gearbox, a sliding mechanism provided on the outer side of the sampling hopper, the sliding mechanism including a sliding component and an auxiliary component, the sliding component including a mounting sleeve, the upper part of the mounting sleeve fitting against the lower side of the sampling hopper, the mounting sleeve and the sampling hopper being fixedly installed by bolts, a roller rotatably connected to the lower inner wall of the bolts, the lower side of the roller being provided on the outer side of the mounting sleeve, and multiple sets of rollers being provided.

[0007] As a further description of the above technical solution:

[0008] The auxiliary component includes a fixing column, which is fixedly connected to the upper surface of the mounting sleeve. Multiple sets of mounting sleeves are provided. The sampling hopper has a mounting hole on its lower side, and the fixing column is inserted into the inner wall of the mounting hole.

[0009] As a further description of the above technical solution:

[0010] The mounting sleeve is provided in two sets, and the two sets of mounting sleeves are symmetrically arranged with the center line of the sampling bucket as the axis of symmetry.

[0011] As a further description of the above technical solution:

[0012] The mounting sleeve is designed to be arc-shaped.

[0013] As a further description of the above technical solution:

[0014] A limiting component is provided on the upper part of the support platform. The limiting component includes two bolts, which are threadedly connected to the inner wall of the support platform and the upper cover. A limiting block is slidably connected to the inner wall of the support platform, and a pull rod is fixedly connected to the front side of the limiting block.

[0015] As a further description of the above technical solution:

[0016] The front side of the limiting block is elastically connected to the support platform via a compression spring. One end of the compression spring is fixedly connected to the inner wall of the support platform, and the other end of the compression spring is fixedly connected to the front side of the limiting block.

[0017] As a further description of the above technical solution:

[0018] A limiting groove is provided on the outer side of the second bolt, and the limiting block is inserted into the inner wall of the limiting groove.

[0019] As a further description of the above technical solution:

[0020] The limiting components are provided in two sets, and the two sets of limiting components are respectively located on the left and right sides of the support platform near the upper cover.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by using the sliding mechanism and the sampling bucket in combination, when transporting coal on the belt, the rollers directly contact the belt, which effectively reduces abnormal wear on the belt during the sampling process and avoids the shortening of the belt's service life due to excessive friction.

[0023] 2. In this utility model, by using the limiting component and the upper cover together, when it is necessary to maintain the sampling hopper, the limiting block is pulled to release the limiting of the second bolt, and then the second bolt is rotated to release the limiting of the upper cover, which improves the disassembly efficiency of the device and facilitates the maintenance of the sampling hopper, thus improving the maintenance efficiency of the device. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0025] Figure 2 This is a bottom-view three-dimensional structural diagram of the overall device in this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram showing the disassembled sampling bucket and mounting sleeve in this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the support platform and the upper cover separated in this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the limiting component in this utility model.

[0029] Legend:

[0030] 1. Support platform; 2. Motor; 3. Gearbox; 4. Sampling hopper; 51. Mounting sleeve; 52. Roller; 53. Bolt 1; 54. Mounting hole; 55. Fixing column; 6. Top cover; 61. Bolt 2; 62. Limiting groove; 63. Limiting block; 64. Pull rod; 65. Compression spring; 7. Discharge hopper. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 3This utility model provides an embodiment of a belt sampling machine for power plants, including a support platform 1 for installation on a coal conveying device to sample the coal conveyed by the belt. A cover 6 is inserted into the upper side of the support platform 1 to close the upper left side of the support platform 1. A reduction gearbox 3 is installed on the upper part of the support platform 1 to reduce the speed and increase the torque. This technology is prior art and will not be described in detail. A motor 2 is fixedly connected to the output shaft of the rear side of the reduction gearbox 3, which is the power source of the sampling machine. The motor 2 provides power to the reduction gearbox 3 through its output shaft to drive the entire sampling system. This technology is prior art and will not be described in detail. The motor 2 is fixedly connected to the upper part of the support platform 1.

[0033] Furthermore, a discharge hopper 7 is provided on the lower side of the support platform 1 for discharging the collected coal samples. A sampling hopper 4 is provided on the outer side of the output shaft on the left side of the gearbox 3 for directly collecting coal on the belt as a sample. This technology is existing technology, so it will not be described in detail. A sliding mechanism is provided on the outer side of the sampling hopper 4. The sliding mechanism includes a sliding component and an auxiliary component. The sliding component includes a mounting sleeve 51, which is fixedly installed to the sampling hopper 4 by bolts 53, providing a mounting base for the roller 52 and the fixed column 55. The mounting sleeve 51 is set in an arc shape to better adapt to the shape of the sampling hopper 4, ensuring the stability of the installation and the coordination with the movement of the sampling hopper 4. The upper part of the mounting sleeve 51 fits against the lower side of the sampling hopper 4.

[0034] Furthermore, the mounting sleeve 51 and the sampling bucket 4 are fixedly installed by bolts 53. Multiple sets of bolts 53 are provided. When it is necessary to replace or maintain the mounting sleeve 51, the mounting sleeve 51 can be quickly replaced or maintained by rotating multiple sets of bolts 53. The lower inner wall of the bolts 53 is rotatably connected to rollers 52. Through direct contact with the belt, the sampling bucket 4 can move smoothly above the belt as the belt runs. The lower side of the rollers 52 is located on the outside of the mounting sleeve 51. Multiple sets of rollers 52 are provided. The setting of multiple sets of rollers 52 increases the contact points with the belt, further improving the stability of the movement of the sampling bucket 4, reducing shaking and deviation, and reducing the friction between the sampling bucket 4 and the belt, protecting the belt and the sampling bucket 4, while also helping to ensure the accuracy of sampling.

[0035] Reference Figure 2 and Figure 3The auxiliary components include a fixing post 55, which is fixedly connected to the upper surface of the mounting sleeve 51. The fixing post 55 serves to further fix the mounting sleeve 51 and the sampling bucket 4, and enhance the connection strength between the two. Multiple sets of mounting sleeves 51 are provided. The sampling bucket 4 has a mounting hole 54 on its lower side, which works in conjunction with the fixing post 55 to increase the stability of the mounting sleeve 51. At the same time, the mounting sleeve 51 can be quickly aligned during installation, which facilitates installation. The fixing post 55 is inserted into the inner wall of the mounting hole 54. There are two sets of mounting sleeves 51, and the two sets of mounting sleeves 51 are symmetrically arranged with the center line of the sampling bucket 4 as the axis of symmetry.

[0036] Reference Figure 1 , Figure 4 and Figure 5 A limiting component is provided on the upper part of the support platform 1. The limiting component includes a second bolt 61, which is threadedly connected to the inner wall of the support platform 1 and the upper cover 6, serving to connect the support platform 1 and the upper cover 6 and make the two tightly connected. A limiting block 63 is slidably connected to the inner wall of the support platform 1. By inserting into the inner wall of the limiting groove 62 of the second bolt 61, the second bolt 61 is prevented from loosening, thereby improving the stability of the second bolt 61. A pull rod 64 is fixedly connected to the front side of the limiting block 63. The operator can control the insertion relationship between the limiting block 63 and the limiting groove 62 by pulling the pull rod 64, which facilitates the installation or removal of the upper cover 6, thereby enabling maintenance operations of the device.

[0037] Furthermore, the front side of the limiting block 63 is elastically connected to the support platform 1 via a compression spring 65. One end of the compression spring 65 is fixedly connected to the inner wall of the support platform 1, and the other end of the compression spring 65 is fixedly connected to the front side of the limiting block 63, ensuring that the limiting block 63 can automatically insert into the limiting groove 62 under normal circumstances, maintaining the limiting function of the limiting component. A limiting groove 62 is opened on the outer side of the bolt 2 61, and the limiting block 63 is inserted into the inner wall of the limiting groove 62. It cooperates with the limiting block 63 to limit the bolt 2 61. Two sets of limiting components are provided, and the two sets of limiting components are respectively set on the left and right sides of the support platform 1 near the upper cover 6, which can improve the installation stability of the upper cover 6.

[0038] Working principle: When coal sampling is required at the power plant, motor 2 is started first. The output shaft of motor 2 is connected to gearbox 3. Gearbox 3 adjusts the speed, reduces the speed and increases the torque, and then transmits the power to sampling bucket 4, which drives sampling bucket 4 to sample the coal conveyed by the belt.

[0039] When the sampling bucket 4 is sampling, it drives the roller 52 to roll on the belt. The rolling contact reduces the friction between the sampling bucket 4 and the belt, reduces the wear on the belt and the sampling bucket 4, and avoids the shortening of the belt's service life due to excessive friction. When it is necessary to replace or maintain the mounting sleeve 51, the operation can be quickly completed by rotating multiple sets of bolts 53.

[0040] When it is necessary to install or remove the top cover 6 for equipment maintenance, the operator pulls the lever 64, causing the limit block 63 to overcome the elastic force of the compression spring 65 and disengage from the limit groove 62, thereby making it easy to operate the bolt 61 to complete the installation or removal of the top cover 6.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A belt sampling machine for power plants, comprising a support platform (1), characterized in that: A cover (6) is inserted into the upper side of the support platform (1). A gearbox (3) is provided on the upper part of the support platform (1). A motor (2) is fixedly connected to the output shaft of the gearbox (3). The motor (2) is fixedly connected to the upper part of the support platform (1). A discharge hopper (7) is provided on the lower side of the support platform (1). A sampling hopper (4) is provided on the outer side of the output shaft on the left side of the gearbox (3). A sliding mechanism is provided on the outer side of the sampling hopper (4). The sliding mechanism includes a sliding component and an auxiliary component. The sliding component includes an installation sleeve (51). The upper part of the installation sleeve (51) is attached to the lower side of the sampling hopper (4). The installation sleeve (51) and the sampling hopper (4) are fixedly installed by bolt one (53). A roller (52) is rotatably connected to the lower inner wall of bolt one (53). The lower side of the roller (52) is provided on the outer side of the installation sleeve (51). Multiple sets of rollers (52) are provided.

2. The belt sampling machine for power plants according to claim 1, characterized in that: The auxiliary component includes a fixing column (55), which is fixedly connected to the upper surface of the mounting sleeve (51). The mounting sleeve (51) is provided with multiple sets. The sampling hopper (4) has a mounting hole (54) on its lower side, and the fixing column (55) is inserted into the inner wall of the mounting hole (54).

3. A belt sampling machine for power plants according to claim 1, characterized in that: The mounting sleeve (51) is provided in two sets, and the two sets of mounting sleeves (51) are symmetrically arranged with the center line of the sampling bucket (4) as the axis of symmetry.

4. A belt sampling machine for power plants according to claim 1, characterized in that: The mounting sleeve (51) is configured to be arc-shaped.

5. A belt sampling machine for power plants according to claim 1, characterized in that: The upper part of the support platform (1) is provided with a limiting component, which includes a bolt (61). The bolt (61) is threadedly connected to the inner wall of the support platform (1) and the upper cover (6). The inner wall of the support platform (1) is slidably connected to a limiting block (63), and a pull rod (64) is fixedly connected to the front side of the limiting block (63).

6. A belt sampling machine for power plants according to claim 5, characterized in that: The front side of the limiting block (63) is elastically connected to the support platform (1) by a compression spring (65). One end of the compression spring (65) is fixedly connected to the inner wall of the support platform (1), and the other end of the compression spring (65) is fixedly connected to the front side of the limiting block (63).

7. A belt sampling machine for power plants according to claim 5, characterized in that: A limiting groove (62) is provided on the outer side of the bolt two (61), and the limiting block (63) is inserted into the inner wall of the limiting groove (62).

8. A belt sampling machine for power plants according to claim 5, characterized in that: The limiting components are provided in two sets, and the two sets of limiting components are respectively located on the left and right sides of the support platform (1) near the upper cover (6).

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