Frame structure of dry sand mill

Abstract

The utility model relates to dry sand mill, concretely is the frame structure of dry sand mill, it includes the chassis of installing the grinding cylinder of dry sand mill, the chassis includes setting two bottom rails at the front end, the rail groove is set up on each bottom rail along the length direction, the rail groove is equipped with the guide rail that extends to the front, the roller wheel on grinding cylinder moves along two guide rails to install the grinding cylinder at the rear end of chassis, each guide rail is equipped with the mounting trolley, and two mounting trolleys move the end cap to the grinding cylinder through along two guide rails and drive to install the end cap on the front end face of the grinding cylinder. Wherein grinding cylinder utilizes the roller wheel along two guide rails and moves to realize the installation, and through the mounting trolley along two guide rails and moves the end cap to the grinding cylinder and drive to directly set it in the main shaft after moving, thereby accurately fixed the end cap on the front end face of grinding cylinder, thereby guaranteed the coaxial degree of grinding cylinder and end cap.

Description

Technical Field

[0001] This utility model relates to a dry sand mill, specifically a frame structure for a dry sand mill. Background Technology

[0002] Currently, dry grinding technology uses sand mills and air jet mills as the grinding body, classifiers as the classification body, and necessary dust removal equipment to form a closed-loop dry grinding process. Its advantages of high grinding efficiency and high grinding fineness have led to its increasingly widespread application. However, because dry sand mills require coordination with a classifier system, their installation and maintenance are relatively complex. In existing sand mill assembly, the main shaft is typically installed at the rear end of the frame first. Due to the limitations of the frame structure, the grinding cylinder is then manually installed onto the frame, allowing the main shaft to pass through it. Finally, the end cap is manually fitted onto the main shaft and secured to the front end face of the grinding cylinder. This process is not only time-consuming and labor-intensive, but also makes it difficult to ensure the coaxiality of the end cap and grinding cylinder, resulting in low installation accuracy and affecting the service life of the sand mill main shaft. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a frame structure for a dry sand mill that saves time and effort while ensuring installation accuracy.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a frame structure for a dry sand mill, which includes a base frame for mounting the grinding cylinder of the dry sand mill. The base frame includes two bottom rails at the front end. Each bottom rail has a rail groove along its length. A guide rail extending forward is provided in the rail groove. Rollers mounted on the grinding cylinder move along the two guide rails to mount the grinding cylinder at the rear end of the base frame. Each guide rail is provided with an installation trolley. The two installation trolleys move along the two guide rails to move the end cap to the grinding cylinder to mount the end cap on the front end face of the grinding cylinder.

[0005] Preferably, each mounting trolley includes a wheel mounted on the guide rail, a base for mounting the wheel, and a vertical rod connected at one end to the base, the other end of which is connected to the end cap.

[0006] Preferably, the front end face of the grinding cylinder extends outward with a flange, a positioning plate is provided on the flange, a fixing plate is connected to the end cover, one end of the guide rod passes through the positioning plate and is connected to the fixing plate, and the other end of the vertical rod is connected to the guide rod.

[0007] Preferably, the other end of the vertical rod is provided with two semi-circular groove plates, and a section of the guide rod located between the positioning plate and the fixing plate is set in the circular groove formed by the two semi-circular groove plates. The two semi-circular groove plates are fixed by bolt connection.

[0008] Preferably, the positioning plate is provided with a vertical sleeve, and one end of the guide rod passes through the sleeve.

[0009] Preferably, the two bases are connected by a connecting rod perpendicular to the guide rail.

[0010] Preferably, the rear end of the base frame is provided with a transmission box, and a motor is provided on one side of the base frame. The motor drives the main shaft of the sand mill to rotate through a transmission chain installed in the transmission box.

[0011] Preferably, each bottom rail has several pads at its bottom.

[0012] Preferably, each guide rail has several support legs at its bottom.

[0013] As can be seen from the above technical solution, this utility model has a stretchable guide rail and an installation trolley on the base frame. The grinding cylinder is installed by moving along the two guide rails using rollers. The installation trolley moves along the two guide rails to move the end cover to the grinding cylinder and then directly sleeves it on the main shaft, thereby accurately fixing the end cover to the front end face of the grinding cylinder. This ensures the coaxiality of the grinding cylinder and the end cover, and eliminates the need for manual adjustment of the fit between the end cover and the main shaft. This not only saves time and effort and improves installation efficiency, but also makes installation convenient and highly accurate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the installation structure of the trolley in this utility model.

[0016] Figure 3 This is a schematic diagram of the installation structure of the frame and grinding cylinder of this utility model. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0018] like Figure 1 , Figure 2 and Figure 3As shown, this utility model provides a frame structure for a dry sand mill, which includes a base frame 2 for mounting a grinding cylinder 1 of the dry sand mill. The base frame includes two bottom rails 21 located at the front end. Each bottom rail has a rail groove 22 along its length, and a guide rail 23 extending forward is provided in the rail groove. Rollers 3 mounted on the grinding cylinder move along the two guide rails to mount the grinding cylinder at the rear end of the base frame. Each guide rail is provided with a mounting trolley 4. The two mounting trolleys move along the two guide rails to move the end cover 5 to the grinding cylinder to mount the end cover on the front end face of the grinding cylinder. During the process, the rollers of the grinding cylinder are first moved along the two guide rails to push it from the front end of the frame to the rear end for installation. Then, the installation trolley moves along the two guide rails to move the end cover to the grinding cylinder and directly fits it onto the main shaft 6, thereby accurately fixing the end cover to the front end face of the grinding cylinder. This ensures the coaxiality of the grinding cylinder and the end cover, and eliminates the need for manual adjustment of the fit between the end cover and the main shaft. This not only saves time and effort and improves installation efficiency, but also makes installation convenient and accurate.

[0019] Specifically, each installation trolley 4 includes a wheel 41 mounted on the guide rail, a base 42 for mounting the wheel, and a vertical rod 43 connected at one end to the base, with the other end of the vertical rod connected to the end cap. Thus, the end cap can be moved along the guide rail to the grinding cylinder by manually pushing the installation trolley, saving time and effort and improving installation accuracy and convenience. Preferably, the two bases are connected by a connecting rod 44 perpendicular to the guide rail, thereby linking the two installation trolleys into a whole, ensuring accurate and stable movement of the end cap along the guide rail, and improving the coaxiality of the grinding cylinder and the end cap installation.

[0020] The grinding cylinder 1 of this invention has a flange 11 extending outward from its front end face. A positioning plate 12 is provided on this flange. A fixing plate 51 is connected to the end cover 5. One end of the guide rod 45 passes through the positioning plate and connects to the fixing plate. Specifically, the fixing plate is fastened to the end face of one end of the guide rod by screws. The other end of the vertical rod is connected to the guide rod, thereby the wheel drives the end cover to move via the base, vertical rod, guide rod, and fixing plate. Preferably, the other end of the vertical rod has two semi-circular groove plates 46. A section of the guide rod located between the positioning plate and the fixing plate is placed in the circular groove formed by the two semi-circular groove plates. The two semi-circular groove plates are fixed by bolts, thereby connecting and fastening the vertical rod and the guide rod, ensuring a stable and reliable connection. The guide rod of this invention is confined in the circular groove, which reduces damage to the guide rod, ensures the accuracy of movement, and improves the coaxiality of the installation.

[0021] A rod sleeve 13 is vertically mounted on the positioning plate 12. One end of the guide rod passes through this rod sleeve. During implementation, when the grinding cylinder is installed at the rear end of the frame, the main shaft extends from the front end of the grinding cylinder. This allows one end of the guide rod to pass through the rod sleeve and the positioning plate and connect to the fixing plate. Then, the other end of the vertical rod is fixed to the guide rod via two semi-circular groove plates. The installation trolley is then pushed to move the end cap backward along the guide rail to fit it onto the front end of the main shaft and fix it to the grinding cylinder. As the end cap moves backward, the guide rod moves backward along the rod sleeve, preventing the end cap from shifting and further improving installation accuracy.

[0022] The base frame of this invention has a transmission box 7 at its rear end and a motor 8 on one side, which saves space. The motor drives the main shaft of the sand mill to rotate via a transmission chain installed in the transmission box, thereby driving the grinding rotor inside the grinding cylinder to rotate and achieve grinding. Preferably, each base rail has several pads 9 at its bottom to prevent vibration during operation and ensure the stability of the base rail. Each guide rail has several support legs 10 at its bottom. During implementation, the height of the support legs can be adjusted to ensure that the guide rails are parallel and do not tilt, further improving installation accuracy.

Claims

1. A frame structure for a dry sand mill, including a base frame for mounting the grinding cylinder of the dry sand mill, characterized in that: The base frame includes two bottom rails at the front end. Each bottom rail has a groove along its length, and a guide rail extending forward is provided in the groove. Rollers mounted on the grinding cylinder move along the two guide rails to install the grinding cylinder at the rear end of the base frame. Each guide rail has an installation trolley. The two installation trolleys move along the two guide rails to move the end cap to the grinding cylinder to install the end cap on the front end face of the grinding cylinder. Each installation trolley includes a wheel mounted on the guide rail, a base for mounting the wheel, and a vertical rod connected to the base at one end. The other end of the vertical rod is connected to the end cap. The front end face of the grinding cylinder has a flange extending outward. A positioning plate is provided on the flange. A fixing plate is connected to the end cap. One end of the guide rod passes through the positioning plate and connects to the fixing plate. The other end of the vertical rod is connected to the guide rod.

2. The frame structure of the dry sand mill according to claim 1, characterized in that: The other end of the vertical rod is provided with two semi-circular groove plates. A section of the guide rod located between the positioning plate and the fixing plate is set in the circular groove formed by the two semi-circular groove plates. The two semi-circular groove plates are fixed by bolts.

3. The frame structure of the dry sand mill according to claim 1, characterized in that: The positioning plate is vertically provided with a sleeve, and one end of the guide rod passes through the sleeve.

4. The frame structure of the dry sand mill according to claim 1, characterized in that: The two bases are connected by a connecting rod perpendicular to the guide rail.

5. The frame structure of the dry sand mill according to claim 1, characterized in that: The rear end of the base frame is equipped with a transmission box, and a motor is installed on one side of the base frame. The motor drives the main shaft of the sand mill to rotate through a transmission chain installed in the transmission box.

6. The frame structure of the dry sand mill according to claim 1, characterized in that: Each bottom rail has several pads at its base.

7. The frame structure of the dry sand mill according to claim 1, characterized in that: Each guide rail has several support legs at its bottom.

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