Environment-friendly closed zinc powder grinding device

Abstract

The invention relates to the technical field of grinding devices, and discloses an environment-friendly closed zinc powder grinding device which comprises a rack, a grinding tank is arranged on the inner side of the rack, a driving mechanism used for driving the grinding tank to rotate is arranged on the rack, a grinding cylinder is arranged in the grinding tank, and a first mounting frame is fixedly mounted at the top end of the grinding tank; a second motor is fixedly mounted on the first mounting frame; through the arrangement of the adjusting mechanism, when grinding is just started, a gap between a grinding block and the inner wall of the grinding tank is large, the distance between an adjusting sliding rod and the grinding block is large, at the moment, an adjusting column does not make contact with the grinding block, the grinding block can slide in a first sliding groove, and a first spring can apply pressure to the grinding block; by arranging the grinding block on the grinding tank, the acting force of the grinding block on zinc powder particles is not too large, the distance between the grinding block and the inner wall of the grinding tank is large, and therefore the situation that the temperature of the zinc powder rises due to the fact that pressure borne by large-particle zinc powder is too large in the initial grinding stage is avoided, and the problem of zinc powder oxidation is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to an environmentally friendly closed zinc powder grinding device. Background Art

[0002] Zinc powder is a dark grey powdered metal zinc with significant anti-rust and atmospheric corrosion resistance. It is often used to make anti-rust paint, strong reducing agent, etc., and is used as a reducing agent in chemical production. In addition, zinc powder is also widely used in the fields of medicine, food, and electronics. Zinc powder grinding device is a device specially used for efficient grinding of zinc raw materials or zinc oxide powder, aiming to improve the fineness and uniformity of zinc powder.

[0003] Chinese patent CN220835964U discloses a zinc powder particle grinding mechanism, which relates to the field of zinc powder production technology. It includes a grinding box, a grinding chamber is provided in the grinding box, a main grinding head is arranged in the grinding chamber, a grinding gap is arranged between the main grinding head and the inner wall of the grinding chamber, a rotating shaft is fixedly connected to the top of the main grinding head, the rotating shaft is rotatably connected to the grinding box, and the rotating shaft is coaxially arranged with the grinding chamber, the main grinding head is eccentrically arranged with the rotating shaft, and an arc-shaped scraper is attached to the outer side of the main grinding head, and the arc-shaped scraper is connected to the top of the grinding chamber. The device can ensure that large particles can smoothly enter the grinding gap for grinding, and at the same time can scrape off the zinc powder adhering to the main grinding head to ensure the grinding effect.

[0004] As shown in the above patent, the existing zinc powder grinding device usually uses a grinding head to extrude and grind the zinc powder, wherein the grinding head rotates along a fixed track, and the zinc powder is crushed and refined by reducing the gap between the grinding head and the inner wall of the grinding box. However, this design has a significant problem: since the minimum gap between the grinding head and the inner wall of the grinding box is fixed, in the early stage of grinding, when the zinc powder particle size is large, these large particles of zinc powder will generate a lot of heat during the process of excessive extrusion and crushing, causing the zinc powder temperature to rise. The increase in temperature not only increases the risk of zinc powder oxidation, which in turn has an adverse effect on its product quality, but also may cause safety hazards.

[0005] Therefore, it is necessary to provide an environmentally friendly closed zinc powder grinding device to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide an environmentally friendly closed zinc powder grinding device, which can avoid the problem of zinc powder oxidation caused by excessive pressure on large zinc powder particles in the initial stage of grinding.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: an environmentally friendly closed zinc powder grinding device, comprising a frame, a grinding jar is arranged on the inner side of the frame, a driving mechanism for driving the grinding jar to rotate is arranged on the frame, a grinding cylinder is arranged in the grinding jar, a first mounting frame is fixedly installed on the top of the grinding jar, a second motor is fixedly installed on the first mounting frame, the output end of the second motor is transmission-connected to the grinding cylinder, a plurality of first slide grooves are provided on the outer peripheral wall of the grinding cylinder, grinding blocks are slidably installed in the plurality of first slide grooves, and the grinding blocks partially extend out of the first slide grooves, and a plurality of adjustment mechanisms for adjusting the position of the grinding blocks are arranged inside the grinding cylinder.

[0008] The adjusting mechanism comprises a transmission assembly, an adjusting slide rod, a first spring and an adjusting column. A plurality of second slide grooves are provided inside the grinding cylinder, and an adjusting slide rod is slidably installed in each of the plurality of second slide grooves. A connecting hole is provided between the first slide groove and the second slide groove, and a first spring and an adjusting column are provided in the connecting hole. One end of the first spring is fixedly connected to the adjusting slide rod, and the other end of the first spring is fixedly connected to the grinding block. One end of the adjusting column is fixedly connected to the adjusting slide rod. A hollow chamber is provided inside the grinding cylinder, and a transmission assembly is provided in the hollow chamber, and the transmission assembly is transmission-connected to the adjusting slide rod.

[0009] The transmission assembly includes a transmission rod, an adjusting disk and an adjusting block. A first inclined surface is provided at the end of the adjusting slide rod. The transmission rod is rotatably installed in a hollow chamber. A threaded groove is provided at the end of the transmission rod. The transmission rod passes through the adjusting disk, and the transmission rod is threadedly connected to the adjusting disk. A plurality of adjusting blocks are fixedly installed on one side of the adjusting disk close to the adjusting slide rod. A second inclined surface is provided on the adjusting block, and the second inclined surface is in contact with the first inclined surface. A driving gear is fixedly installed on the top of the transmission rod.

[0010] The present invention is further configured as follows: a connecting portion is provided at the top end of the grinding cylinder, the connecting portion penetrates the top wall of the grinding jar, and the connecting portion is rotatably connected to the grinding jar.

[0011] The present invention is further configured as follows: the driving gear is rotatably installed inside the connecting part, one side of the driving gear is meshed with a transmission gear, the transmission gear is rotatably connected to the connecting part, and one side of the transmission gear extends out from the connecting part, and an arc-shaped rack is provided at the top of the grinding jar, and the arc-shaped rack is adapted to the transmission gear.

[0012] The present invention is further configured as follows: a second mounting frame is fixedly mounted on one side of the top of the grinding jar, an electric push rod is fixedly mounted on the top of the second mounting frame, and an output end of the electric push rod is fixedly connected to an arc-shaped rack.

[0013] The present invention is further configured as follows: a plurality of sets of elastic connection components are fixedly installed on the outer peripheral wall of the transmission rod, an impact column is rotatably installed on one end of the elastic connection component, and a plurality of protrusions are arranged on the edge of the hollow inner cavity of the grinding cylinder, and the protrusions are located between two adjacent second slide grooves.

[0014] The present invention is further configured as follows: the elastic connection assembly includes a connecting tube, a connecting column and a fixing ring, one end of the connecting tube is fixedly connected to the outer peripheral wall of the transmission rod, one end of the connecting column extends into the connecting tube, and the connecting column and the connecting tube are slidingly matched, a second spring is arranged in the connecting tube, the connecting column is elastically connected to the connecting tube through the second spring, a fixing ring is fixedly installed on one end of the connecting column away from the connecting tube, the impact column passes through the fixing ring, and the impact column and the fixing ring are rotationally matched.

[0015] The present invention is further configured as follows: the driving mechanism includes a first motor and a connecting ring, the first motor is fixedly mounted on one side of the frame, the connecting ring is rotatably mounted inside the frame, the connecting ring is fixedly sleeved on the grinding jar, and the output end of the first motor is transmission-connected to the connecting ring.

[0016] The present invention is further configured as follows: a discharge hopper is provided at the bottom end of the grinding jar, an inlet and outlet are provided at one end of the discharge hopper, and a valve is provided on the inlet and outlet.

[0017] In summary, the present invention has the following beneficial effects: the present invention arranges the adjusting mechanism so that at the beginning of grinding, the gap between the grinding block and the inner wall of the grinding jar is larger, and the distance between the adjusting slide rod and the grinding block is larger. At this time, the adjusting column does not contact the grinding block, and the grinding block can slide in the first slide groove, and the first spring can apply pressure to the grinding block, so that the force exerted by the grinding block on the zinc powder particles is not too large, and the distance between the grinding block and the inner wall of the grinding jar is larger, thereby avoiding the excessive pressure on the large-particle zinc powder in the initial stage of grinding, which causes the zinc powder temperature to rise, and effectively avoids the problem of zinc powder oxidation. As the grinding progresses, As the time increases, larger particles of zinc powder are crushed, and the transmission rod is driven to rotate by the driving gear. When the transmission rod rotates, the adjusting disk pushes the adjusting block to move toward the adjusting slide rod, so that the adjusting block pushes the adjusting slide rod toward the grinding block through the first inclined surface and the second inclined surface, thereby gradually compressing the first spring, and then the pressure of the grinding block on the zinc powder gradually increases, so as to gradually increase the grinding speed, and the adjusting slide rod can drive the adjusting column to move when moving. When the adjusting column moves to contact with the grinding block, the grinding block cannot move, so that the pressure of the grinding block on the zinc powder is significantly increased, so as to ensure the final grinding and crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2It is a schematic cross-sectional view of the grinding jar and the grinding cylinder of the present invention; Figure 3 It is a schematic cross-sectional structural diagram of the grinding cylinder of the present invention; Figure 4 It is a schematic diagram of a top cross-sectional structure of the grinding cylinder of the present invention; Figure 5 It is a schematic diagram of the structure of the grinding block, the adjusting slide rod and the adjusting column of the present invention; Figure 6 It is a structural schematic diagram of the adjustment disk and the adjustment block of the present invention; Figure 7 It is a schematic structural diagram of the transmission rod, the elastic connection assembly and the impact column of the present invention; Figure 8 It is a schematic diagram of the structure of the electric push rod and the arc-shaped rack of the present invention; Fig. 9 It is a schematic structural diagram of the elastic connection component and the impact column of the present invention.

[0019] In the figure: 1, frame; 2, first motor; 3, connecting ring; 4, grinding tank; 5, discharge hopper; 6, valve; 7, grinding cylinder; 701, first slide groove; 702, second slide groove; 703, connecting hole; 704, hollow chamber; 705, protrusion; 706, connecting part; 8, grinding block; 9, adjusting slide rod; 901, first inclined surface; 10, first spring; 11, adjusting column; 12, driving gear; 13, transmission rod; 1301, threaded groove; 14, adjusting disk; 15, adjusting block; 1501, second inclined surface; 16, transmission gear; 17, first mounting frame; 18, second motor; 19, second mounting frame; 20, electric push rod; 21, arc rack; 22, elastic connecting component; 221, connecting cylinder; 222, connecting column; 223, fixing ring; 23, impact column. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] See also Figures 1 to 6In an embodiment of the present invention, an environmentally friendly closed zinc powder grinding device includes a frame 1, a grinding jar 4 is arranged on the inner side of the frame 1, a discharge hopper 5 is arranged at the bottom end of the grinding jar 4, an inlet and outlet are arranged at one end of the discharge hopper 5, and a valve 6 is arranged on the inlet and outlet. A driving mechanism for driving the grinding jar 4 to rotate is arranged on the frame 1, a grinding cylinder 7 is arranged in the grinding jar 4, a first mounting frame 17 is fixedly installed on the top of the grinding jar 4, a second motor 18 is fixedly installed on the first mounting frame 17, an output end of the second motor 18 is drivingly connected with the grinding cylinder 7, a plurality of first slide grooves 701 are opened on the outer peripheral wall of the grinding cylinder 7, and a grinding block 8 is slidably installed in each of the plurality of first slide grooves 701. The grinding block 8 partially extends out of the first slide groove 701, and the part of the grinding block 8 extending out of the first slide groove 701 is an arc-shaped structure, so as to facilitate the grinding process. The grinding cylinder 7 is provided with a plurality of adjustment mechanisms for adjusting the position of the grinding block 8; the adjustment mechanism includes a transmission assembly, an adjustment slide rod 9, a first spring 10 and an adjustment column 11. The grinding cylinder 7 is provided with a plurality of second slide grooves 702, and the plurality of second slide grooves 702 are all slidably installed with adjustment slide rods 9. A connecting hole 703 is provided between the first slide groove 701 and the second slide groove 702, and a first spring 10 and an adjustment column 11 are provided in the connecting hole 703. One end of the first spring 10 is fixedly connected to the adjustment slide rod 9, and the first spring 10 is provided in a fixed manner to the adjustment slide rod 9. The other end of the spring 10 is fixedly connected to the grinding block 8, one end of the adjusting column 11 is fixedly connected to the adjusting slide bar 9, a hollow chamber 704 is provided inside the grinding cylinder 7, a transmission assembly is provided in the hollow chamber 704, and the transmission assembly is transmission-connected to the adjusting slide bar 9; the transmission assembly includes a transmission rod 13, an adjusting disk 14 and an adjusting block 15, the adjusting disk 14 can only slide up and down relative to the grinding cylinder 7, and cannot rotate relative to the grinding cylinder 7, a first inclined surface 901 is provided at the end of the adjusting slide bar 9, the transmission rod 13 is rotatably installed in the hollow chamber 704, a threaded groove 1301 is provided at the end of the transmission rod 13, the transmission rod 13 passes through the adjusting disk 14, and the transmission rod 13 and the adjusting disk 1 4 is threadedly connected, a plurality of adjusting blocks 15 are fixedly installed on one side of the adjusting disk 14 close to the adjusting slide bar 9, and the plurality of adjusting blocks 15 are distributed in a circular array with the axis of the adjusting disk 14 as the array center, and a second inclined surface 1501 is opened on the adjusting block 15, and the second inclined surface 1501 is in contact with the first inclined surface 901, and a driving gear 12 is fixedly installed on the top of the transmission rod 13; there are two groups of adjusting disks 14 and adjusting blocks 15, which are respectively located below and above the adjusting slide bar 9, and at this time, the thread directions of the two sections of the thread grooves 1301 on the transmission rod 13 are opposite, so that when the transmission rod 13 rotates, the two adjusting disks 14 move synchronously in opposite directions, thereby increasing the driving force on the adjusting slide bar 9 and ensuring the stability of the mechanism operation.

[0022] When in use, first open the valve 6, pour the zinc powder into the grinding jar 4 through the inlet and outlet, and after closing the valve 6, drive the grinding jar 4 to rotate intermittently reciprocatingly through the driving mechanism, and drive the grinding cylinder 7 to rotate through the second motor 18. When the grinding cylinder 7 rotates, it drives the grinding block 8 to rotate, so as to grind and crush the zinc powder entering between the grinding block 8 and the inner wall of the grinding jar 4. A chamber is arranged between the top and bottom ends of the grinding cylinder 7 and the inner wall of the grinding jar 4. When the grinding jar 4 rotates reciprocatingly, the zinc powder in the grinding jar 4 flows back and forth between the two chambers. During the flow, the zinc powder enters the gap between the grinding block 8 and the inner wall of the grinding jar 4 and is crushed and refined, so as to gradually grind and crush the zinc powder. Through the setting of the adjusting mechanism, when the grinding starts, the gap between the grinding block 8 and the inner wall of the grinding jar 4 is larger, about 3-5mm, and the distance between the adjusting slide bar 9 and the grinding block 8 is larger. At this time, the adjusting column 11 does not contact the grinding block 8, and the grinding block 8 can slide in the first slide groove 701, and the first spring 10 can apply pressure to the grinding block 8 so that the force exerted by the grinding block 8 on the zinc powder particles will not be too large. The distance between the grinding block 8 and the inner wall of the grinding tank 4 is large, thereby avoiding the excessive pressure on large-particle zinc powder in the early stage of grinding, which causes the temperature of the zinc powder to rise, and effectively avoids the problem of zinc powder oxidation. As the grinding time increases, the larger particles of zinc powder are crushed, and the transmission rod 13 is driven to rotate by the driving gear 12. When the transmission rod 13 rotates, the adjustment disk 14 pushes the adjustment block 15 toward the adjustment slide bar 9, so that the adjustment block 15 pushes the adjustment slide bar 9 toward the grinding block 8 through the first inclined surface 901 and the second inclined surface 1501, so that the first spring 10 is gradually compressed, and then the pressure of the grinding block 8 on the zinc powder is gradually increased to gradually increase the grinding speed. When the adjustment slide bar 9 moves, it can drive the adjustment column 11 to move. When the adjustment column 11 moves to contact with the grinding block 8, the grinding block 8 cannot move, so that the pressure of the grinding block 8 on the zinc powder is significantly increased to ensure the final grinding and crushing effect.

[0023] In this embodiment, preferably, the driving mechanism includes a first motor 2 and a connecting ring 3, the first motor 2 is fixedly mounted on one side of the frame 1, the connecting ring 3 is rotatably mounted inside the frame 1, the connecting ring 3 is fixedly sleeved on the grinding jar 4, and the output end of the first motor 2 is transmission connected to the connecting ring 3; the connecting ring 3 can be driven to rotate by the first motor 2, thereby driving the grinding jar 4 to rotate, and the first motor 2 is a forward and reverse motor. When in use, the output end of the first motor 2 rotates 180° clockwise and then 180° counterclockwise, and so on, to prevent the wires on the second motor 18 from being entangled.

[0024] See also Figure 1 , Figure 7 and Figure 8In the embodiment of the present invention, a connecting portion 706 is provided at the top of the grinding cylinder 7, and the connecting portion 706 penetrates the top wall of the grinding jar 4, and the connecting portion 706 is rotatably connected to the grinding jar 4, and the driving gear 12 is rotatably installed inside the connecting portion 706, and one side of the driving gear 12 is meshed with a transmission gear 16, and the transmission gear 16 is rotatably connected to the connecting portion 706, and one side of the transmission gear 16 extends out from the connecting portion 706, and the top of the grinding jar 4 is provided with an arc-shaped rack 21, and the arc-shaped rack 21 is connected to the transmission gear 16. The gear 16 is adapted; when the grinding cylinder 7 rotates for grinding, the driving gear 12, the transmission gear 16, the adjustment disk 14 and the transmission rod 13 rotate together with the grinding cylinder 7. When the transmission gear 16 moves to mesh with the arc-shaped rack 21, the transmission gear 16 starts to rotate. When the transmission gear 16 rotates, it drives the driving gear 12 to rotate, thereby driving the transmission rod 13 to rotate. When the transmission rod 13 rotates, it drives the adjustment disk 14 located above to move downward, thereby driving the adjustment block 15 to move downward, and then pushing the adjustment slide bar 9 to move toward the grinding block 8.

[0025] In this embodiment, preferably, a second mounting frame 19 is fixedly installed on one side of the top of the grinding tank 4, and an electric push rod 20 is fixedly installed on the top of the second mounting frame 19, and the output end of the electric push rod 20 is fixedly connected to the arc-shaped rack 21; when the adjusting slide bar 9 moves to the point where the adjusting column 11 contacts the grinding block 8, the adjustment of the position of the adjusting slide bar 9 is completed, and at this time, the output end of the electric push rod 20 is controlled to contract, thereby driving the arc-shaped rack 21 to move upward, so that when the subsequent grinding cylinder 7 rotates, the transmission gear 16 will not contact the arc-shaped rack 21, so that the transmission gear 16 stops rotating, and after the zinc powder is ground, the grinding tank 4 is rotated to the discharge position. The bucket 5 is facing downward, and the output end of the electric push rod 20 is controlled to extend, so that the arc-shaped rack 21 moves downward and resets, and then the output end of the second motor 18 is controlled to rotate in the opposite direction, so that the grinding cylinder 7 rotates in the opposite direction, so that the transmission gear 16 engages with the arc-shaped rack 21 and rotates in the opposite direction, and then the driving gear 12 drives the transmission rod 13 to rotate in the opposite direction, so that the adjustment disk 14 and the adjustment slide bar 9 are reset, so that the grinding block 8 moves in the direction away from the inner wall of the grinding tank 4, so that the gap between the grinding block 8 and the inner wall of the grinding tank 4 is increased, so that the zinc powder in the grinding tank 4 flows downward quickly, and then the valve 6 can be opened to discharge the ground zinc powder, which can significantly improve the discharge efficiency.

[0026] See also Figure 4 , Figure 7 and Fig. 9In the embodiment of the present invention, a plurality of sets of elastic connection components 22 are fixedly installed on the outer peripheral wall of the transmission rod 13, and an impact column 23 is rotatably installed on one end of the elastic connection component 22. A plurality of protrusions 705 are provided on the edge of the hollow inner cavity of the grinding cylinder 7, and the protrusion 705 is located between two adjacent second slide grooves 702; when the transmission rod 13 rotates, the transmission rod 13 drives the plurality of sets of elastic connection components 22 to rotate, thereby driving the impact column 23 to rotate. When the impact column 23 passes over the protrusion 705, the impact column 23 hits the adjusting slide bar 9, thereby causing the adjusting slide bar 9 to vibrate, thereby causing the grinding cylinder 7 and the grinding block 8 to vibrate. Under the action of the vibration force, the zinc powder attached to the grinding cylinder 7 and the vibration block can fall off, so as to prevent the grinding cylinder 7 and the vibration block from being attached with more zinc powder and affecting the grinding effect, and facilitate the subsequent discharging process.

[0027] In this embodiment, preferably, the elastic connection component 22 includes a connecting tube 221, a connecting column 222 and a fixing ring 223, one end of the connecting tube 221 is fixedly connected to the outer peripheral wall of the transmission rod 13, one end of the connecting column 222 extends into the connecting tube 221, and the connecting column 222 and the connecting tube 221 are slidably matched, a second spring is arranged in the connecting tube 221, the connecting column 222 is elastically connected to the connecting tube 221 through the second spring, a fixing ring 223 is fixedly installed at one end of the connecting column 222 away from the connecting tube 221, the impact column 23 passes through the fixing ring 223, and the impact column 23 and the fixing ring 223 are rotatably matched; thereby realizing the elastic connection between the impact column 23 and the transmission rod 13.

[0028] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. An environmentally friendly closed zinc powder grinding device, comprising a frame (1), wherein a grinding tank (4) is arranged inside the frame (1), characterized in that: The frame (1) is provided with a driving mechanism for driving the grinding jar (4) to rotate; a grinding cylinder (7) is provided in the grinding jar (4); a first mounting frame (17) is fixedly mounted on the top of the grinding jar (4); a second motor (18) is fixedly mounted on the first mounting frame (17); an output end of the second motor (18) is drivingly connected to the grinding cylinder (7); a plurality of first sliding grooves (701) are provided on the outer peripheral wall of the grinding cylinder (7); a grinding block (8) is slidably mounted in each of the plurality of first sliding grooves (701); a portion of the grinding block (8) extends out of the first sliding grooves (701); and a plurality of adjusting mechanisms for adjusting the position of the grinding block (8) are provided inside the grinding cylinder (7); The adjustment mechanism comprises a transmission assembly, an adjustment slide bar (9), a first spring (10) and an adjustment column (11); a plurality of second slide grooves (702) are provided inside the grinding cylinder (7); an adjustment slide bar (9) is slidably installed in each of the plurality of second slide grooves (702); a connecting hole (703) is provided between the first slide groove (701) and the second slide groove (702); a first spring (10) and an adjustment column (11) are provided in the connecting hole (703); one end of the first spring (10) is fixedly connected to the adjustment slide bar (9); the other end of the first spring (10) is fixedly connected to the grinding block (8); one end of the adjustment column (11) is fixedly connected to the adjustment slide bar (9); a hollow chamber (704) is provided inside the grinding cylinder (7); a transmission assembly is provided in the hollow chamber (704); the transmission assembly is transmission-connected to the adjustment slide bar (9); The transmission assembly comprises a transmission rod (13), an adjustment disk (14) and an adjustment block (15); a first inclined surface (901) is provided at the end of the adjustment slide rod (9); the transmission rod (13) is rotatably mounted in the hollow chamber (704); a threaded groove (1301) is provided at the end of the transmission rod (13); the transmission rod (13) passes through the adjustment disk (14); and the transmission rod (13) and the adjustment disk (14) are threadedly connected; a plurality of adjustment blocks (15) are fixedly mounted on a side of the adjustment disk (14) close to the adjustment slide rod (9); a second inclined surface (1501) is provided on the adjustment block (15); the second inclined surface (1501) is in contact with the first inclined surface (901); and a driving gear (12) is fixedly mounted on the top end of the transmission rod (13).

2. The environmentally friendly closed zinc powder grinding device according to claim 1 is characterized in that: A connecting portion (706) is provided at the top end of the grinding cylinder (7); the connecting portion (706) penetrates the top wall of the grinding jar (4), and the connecting portion (706) is rotatably connected to the grinding jar (4).

3. The environmentally friendly closed zinc powder grinding device according to claim 2 is characterized in that: The driving gear (12) is rotatably mounted inside the connecting portion (706); one side of the driving gear (12) is meshed with a transmission gear (16); the transmission gear (16) is rotatably connected to the connecting portion (706), and one side of the transmission gear (16) extends out from the connecting portion (706); an arc-shaped rack (21) is provided at the top end of the grinding jar (4); the arc-shaped rack (21) is matched with the transmission gear (16).

4. The environmentally friendly closed zinc powder grinding device according to claim 3 is characterized in that: A second mounting frame (19) is fixedly mounted on one side of the top end of the grinding jar (4), an electric push rod (20) is fixedly mounted on the top end of the second mounting frame (19), and an output end of the electric push rod (20) is fixedly connected to an arc-shaped rack (21).

5. The environmentally friendly closed zinc powder grinding device according to claim 1 is characterized in that: A plurality of sets of elastic connection components (22) are fixedly mounted on the outer peripheral wall of the transmission rod (13), an impact column (23) is rotatably mounted on one end of the elastic connection component (22), and a plurality of protrusions (705) are arranged on the edge of the hollow inner cavity of the grinding cylinder (7), and the protrusions (705) are located between two adjacent second slide grooves (702).

6. The environmentally friendly closed zinc powder grinding device according to claim 5, characterized in that: The elastic connection assembly (22) comprises a connection cylinder (221), a connection column (222) and a fixing ring (223); one end of the connection cylinder (221) is fixedly connected to the outer peripheral wall of the transmission rod (13); one end of the connection column (222) extends into the connection cylinder (221), and the connection column (222) and the connection cylinder (221) are slidably matched; a second spring is arranged in the connection cylinder (221); the connection column (222) is elastically connected to the connection cylinder (221) via the second spring; a fixing ring (223) is fixedly mounted on one end of the connection column (222) away from the connection cylinder (221); the impact column (23) passes through the fixing ring (223), and the impact column (23) and the fixing ring (223) are rotatably matched.

7. The environmentally friendly closed zinc powder grinding device according to claim 1 is characterized in that: The driving mechanism comprises a first motor (2) and a connecting ring (3); the first motor (2) is fixedly mounted on one side of the frame (1); the connecting ring (3) is rotatably mounted inside the frame (1); the connecting ring (3) is fixedly sleeved on the grinding jar (4); and the output end of the first motor (2) is drivingly connected to the connecting ring (3).

8. The environmentally friendly closed zinc powder grinding device according to claim 1, characterized in that: A discharge hopper (5) is provided at the bottom end of the grinding tank (4), and an inlet and outlet are provided at one end of the discharge hopper (5), and a valve (6) is provided on the inlet and outlet.

Images