Sealing dust cover for Raymond mill
By designing a sealed dustproof cover for Raymond mill, the automatic opening and closing of the feed cover is achieved by combining racks, gears and torsion springs, the problem that the feed hopper is prone to cause foreign matter to enter after the external equipment is disassembled, and the safety and reliability of the equipment are improved.
Patent Information
- Application Number
- CN202421882278.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-06
AI Technical Summary
After the Raymond mill disassembles the external equipment, the feed hopper is likely to cause foreign objects to enter, causing trouble.
A sealed dust cover including a Raymond grinder main body, feed cover and closed flip plate is designed, and the feed cover is automatically opened and closed by the cooperation of rack, gear and torsion spring.
It effectively prevents foreign matter from entering the Raymond mill through the feed cover, simplifies the operation process of the equipment, and improves the safety and reliability of the equipment.
Smart Images
Figure CN222956566U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of Raymond mill, and particularly relates to a sealing and dust-proof cover for a Raymond mill. Background Technique
[0002] Raymond mill is applicable to the high-precision powder processing of more than 300 kinds of materials in non-explosive and non-flammable mineral, chemical, construction and other industries with Mohs hardness not greater than 9.3 and humidity below 6%, such as quartz stone, barite, etc.
[0003] When the Raymond mill is in use, for the external equipment and the feed hopper of the Raymond mill, when the external equipment is separated from the Raymond mill, the outside will be connected to the inside of the Raymond mill through the feed hopper, which will cause foreign objects to enter the Raymond mill. In order to avoid foreign objects entering, only the feed hopper can be covered after disassembling the external equipment, but this is rather troublesome. Content of the Utility Model
[0004] The main purpose of the utility model is to provide a sealing and dust-proof cover for a Raymond mill, which can effectively solve the problems in the background technique.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A sealing and dust-proof cover for a Raymond mill, comprising a Raymond mill main body, a feed cover and a closing flap. A feed cover is fixedly installed on the front surface of the Raymond mill main body near the lower part. A closing flap is movably installed inside the feed cover. Protective covers are fixedly installed on both side surfaces of the feed cover. A movable door is movably installed on one side surface of the Raymond mill main body.
[0007] Preferably, a rectangular gasket is fixedly installed on the inner surface of the feed cover near the upper part. A sealing strip is embedded on the upper surface of the rectangular gasket. Shaft grooves are opened on both side surfaces of the feed cover near the upper front end. Limiting sliding grooves are longitudinally opened on both side surfaces of the feed cover behind the shaft grooves.
[0008] Preferably, racks are movably installed on both side surfaces of the feed cover. A limiting slider is fixedly installed on the rear surface of the rack near the lower part. The limiting slider is embedded in the limiting sliding groove. The rack is movably connected to the feed cover through the limiting slider.
[0009] Preferably, a groove is longitudinally opened on the rear surface of the protective cover. A rotating groove is opened on the rear surface of the protective cover on one side of the groove. The rotating groove is communicated with the groove. The rack is embedded in the groove.
[0010] Preferably, rotating shafts are fixedly installed on both side surfaces at the rear end of the closing flap. One end of each rotating shaft passes through the shaft groove and extends into the rotating groove. A stop ring is fixedly sleeved on the surface of the rotating shaft located inside the shaft groove, and a torsion spring is sleeved on the surface of the rotating shaft located inside the shaft groove and on one side of the stop ring.
[0011] Preferably, one end of the torsion spring is fixed to the stop ring, and the other end of the torsion spring is fixed to the inner end surface of the shaft groove. A gear is fixedly sleeved on the surface of the rotating shaft located inside the rotating groove.
[0012] Preferably, the gear meshes with the rack, and the upper surface of the closing flap contacts the rectangular cushion strip.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] In the utility model, by means of the mutual cooperation of the feeding hood, the closing flap and the protective cover, when an external device is installed and connected to the feeding hood, the rack will be pressed downward. The descending rack will drive the gear and the closing flap to rotate, so as to open the feeding hood, facilitating the external device to introduce materials into the Raymond mill. When the gear rotates, the torsion spring will be twisted. Therefore, after the external device is disconnected from the feeding hood, the gear will rotate in the reverse direction under the action of the torsion spring, which can prompt the closing flap to turn upward, thus automatically closing the feeding hood, and avoiding foreign objects from passing through the feeding hood and entering the inside of the Raymond mill. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is the overall structure diagram of a sealing and dust-proof cover for a Raymond mill of the utility model;
[0016] Figure 2 is the partial disassembly schematic diagram of a sealing and dust-proof cover for a Raymond mill of the utility model;
[0017] Figure 3 is a sealing and dust-proof cover for a Raymond mill of the utility model Figure 2 enlarged view at A;
[0018] Figure 4 is the structure diagram of the closing flap of a sealing and dust-proof cover for a Raymond mill of the utility model.
[0019] In the figure: 1. Raymond mill main body; 2. Feeding hood; 201. Shaft groove; 202. Limit sliding groove; 203. Rack; 204. Limit slider; 205. Rectangular cushion strip; 3. Closing flap; 301. Rotating shaft; 302. Gear; 303. Stop ring; 304. Torsion spring; 4. Protective cover; 401. Rotating groove; 402. Groove; 5. Movable door. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] As Figures 1-4 shown, a sealing and dust-proof cover for a Raymond mill includes a Raymond mill main body 1, a feeding cover 2 and a closing flap 3. A feeding cover 2 is fixedly installed on the front surface of the Raymond mill main body 1 and near the lower part. A closing flap 3 is movably installed inside the feeding cover 2. Protective covers 4 are fixedly installed on both side surfaces of the feeding cover 2. A movable door 5 is movably installed on one side surface of the Raymond mill main body 1.
[0022] A rectangular gasket 205 is fixedly installed on the inner surface of the feeding cover 2 and near the upper part. A sealing strip is embedded on the upper surface of the rectangular gasket 205. Shaft grooves 201 are opened on both side surfaces of the feeding cover 2 and near the upper front end. Longitudinal limiting sliding grooves 202 are opened on both side surfaces of the feeding cover 2 and behind the shaft grooves 201. The cooperation between the limiting sliding grooves 202 and the limiting sliding blocks 204 can assist the vertical lifting of the rack 203. Racks 203 are movably installed on both side surfaces of the feeding cover 2. A limiting sliding block 204 is fixedly installed on the rear surface of the rack 203 and near the lower part. The limiting sliding block 204 is embedded in the limiting sliding groove 202. The rack 203 is movably connected to the feeding cover 2 through the limiting sliding block 204. A groove 402 is longitudinally opened on the rear surface of the protective cover 4. A rotating groove 401 is opened on the rear surface of the protective cover 4 and on one side of the groove 402. The rotating groove 401 communicates with the groove 402. The rack 203 is embedded in the groove 402. Rotating shafts 301 are fixedly installed on both side surfaces at the rear end of the closing flap 3. One end of the rotating shaft 301 passes through the shaft groove 201 and extends into the rotating groove 401. A stop ring 303 is fixedly sleeved on the surface of the rotating shaft 301 located inside the shaft groove 201. A torsion spring 304 is sleeved on the surface of the rotating shaft 301 located inside the shaft groove 201 and on one side of the stop ring 303. One end of the torsion spring 304 is fixed to the stop ring 303. The other end of the torsion spring 304 is fixed to the inner end surface of the shaft groove 201. A gear 302 is fixedly sleeved on the surface of the rotating shaft 301 located inside the rotating groove 401. The gear 302 meshes with the rack 203. The upper surface of the closing flap 3 contacts the rectangular gasket 205. When the rack 203 descends, it can drive the gear 302 and the closing flap 3 to flip, so as to open the feeding cover 2.
[0023] It should be noted that the present utility model is a sealing and dust-proof cover for a Raymond mill. When in use, when an external device is installed and connected to the feeding cover 2, the rack 203 will be pressed downward. The descending rack 203 will drive the gear 302 and the closing flap 3 to rotate, so as to open the feeding cover 2 and facilitate the external device to introduce materials into the Raymond mill. When the gear 302 rotates, it will twist the torsion spring 304. Therefore, after the external device is disconnected from the feeding cover 2, the gear 302 will rotate in the reverse direction under the action of the torsion spring 304, which can prompt the closing flap 3 to flip upward, thereby automatically closing the feeding cover 2, and this can prevent foreign objects from passing through the feeding cover 2 and entering the interior of the Raymond mill.
[0024] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification are only used to illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A sealed dust cover for a Raymond mill, characterized in that: The invention comprises a Raymond mill body (1), a feed cover (2) and a closing flap (3), wherein the feed cover (2) is fixedly mounted on the front surface of the Raymond mill body (1) and close to the bottom, the closing flap (3) is movably mounted inside the feed cover (2), protective covers (4) are fixedly mounted on both side surfaces of the feed cover (2), and a movable door (5) is movably mounted on one side surface of the Raymond mill body (1).
2. The sealed dust cover for Raymond mill according to claim 1, characterized in that: A rectangular pad strip (205) is fixedly mounted on the inner surface of the feed cover (2) near the top, a sealing strip is embedded on the upper surface of the rectangular pad strip (205), an axis groove (201) is provided on the two side surfaces of the feed cover (2) near the top of the front end, and a limiting sliding groove (202) is longitudinally provided on the two side surfaces of the feed cover (2) behind the axis groove (201).
3. The sealed dust cover for Raymond mill according to claim 2, characterized in that: Racks (203) are movably mounted on both side surfaces of the feed cover (2); a limit slider (204) is fixedly mounted on the rear surface of the rack (203) and located below the rack; the limit slider (204) is embedded in the limit slide groove (202); and the rack (203) is movably connected to the feed cover (2) via the limit slider (204).
4. The sealed dust cover for Raymond mill according to claim 3, characterized in that: A groove (402) is longitudinally provided on the rear surface of the protective cover (4), a rotation groove (401) is provided on the rear surface of the protective cover (4) and located on one side of the groove (402), the rotation groove (401) is communicated with the groove (402), and the rack (203) is embedded in the groove (402).
5. The sealed dust cover for Raymond mill according to claim 4, characterized in that: A flip shaft (301) is fixedly mounted on both sides of the rear end of the closed flap (3); one end of the flip shaft (301) passes through the shaft groove (201) and extends into the rotation groove (401); a stop ring (303) is fixedly sleeved on the surface of the flip shaft (301) located inside the shaft groove (201); and a torsion spring (304) is sleeved on the surface of the flip shaft (301) located inside the shaft groove (201) and on one side of the stop ring (303).
6. The sealed dust cover for Raymond mill according to claim 5, characterized in that: One end of the torsion spring (304) is fixed to the stop ring (303), and the other end of the torsion spring (304) is fixed to the inner surface of one end of the shaft groove (201). A gear (302) is fixedly sleeved on the surface of the flip shaft (301) inside the rotating groove (401).
7. The sealed dust cover for Raymond mill according to claim 6, characterized in that: The gear (302) meshes with the rack (203), and the upper surface of the closing flap (3) contacts the rectangular pad (205).