Pulverizer convenient for adjusting distance between grinding rollers

Abstract

The utility model relates to the technical field of flour mills, in particular to a flour mill convenient for adjusting the distance between grinding rollers, which comprises a machine body, the top of the machine body is fixedly connected with a feed port, and a grinding mechanism is arranged in the machine body; an electric telescopic rod stretches out and draws back to drive a hinge block to move, traction rods on the two sides of the hinge block can drag a sliding block to slide in a sliding sliding way, grinding rollers rotationally connected with the inner wall of the sliding block through a bearing are conveniently driven to move together, the size of a gap between the grinding rollers is conveniently adjusted, and materials with different particle sizes are conveniently ground; and the sliding blocks are arranged to slide in the sliding ways to support the grinding rollers, so that the grinding rollers can be well supported, and the situation that the two sets of grinding rollers incline in the grinding process can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of grinding mill technology, specifically a grinding mill that facilitates adjustment of the grinding roller spacing. Background Technology

[0002] Grinding mills are widely used in the grinding and processing of mineral materials in metallurgy, building materials, chemical industry, mining and other fields. Inside the grinding mill, there are two rollers that crush the material. A roller gap adjustment device is also installed to adjust the roller gap.

[0003] Existing technology, such as publication number CN212882623U, provides a grinding mill gap adjustment device. This device includes a housing with two adjusting rods rotatably mounted inside. A first tube is fitted onto the outer wall of each adjusting rod, located outside the housing, and both first tubes are fixed to the housing. A first sliding sleeve and a second sliding sleeve are fitted onto the outer wall of each adjusting rod. This grinding mill gap adjustment device allows the adjusting wheel to rotate, causing the driving wheel to drive two driven wheels via a chain, resulting in synchronous rotation of the two adjusting rods. This pulls two nuts, adjusting the distance between the first and second grinding rollers. Simultaneously, when large particles enter between the first and second grinding rollers, an electric telescopic rod can pull the first grinding roller away from the second grinding roller, changing the distance between them and preventing damage to the first and second grinding rollers.

[0004] The existing roller gap adjustment device, by rotating the adjusting wheel, causes the driving wheel to drive two driven wheels via a chain, resulting in the synchronous rotation of two adjusting rods. This pulls two nuts to move, adjusting the distance between the first and second grinding rollers. However, this requires two independent motors to drive the first and second grinding rollers during roller transmission, increasing the overall size of the equipment. Furthermore, during grinding, material easily falls off the rollers and into the sides, leading to insufficient grinding. Therefore, we propose a grinding mill with easily adjustable roller gaps. Utility Model Content

[0005] The purpose of this utility model is to provide a grinding mill that facilitates the adjustment of the grinding roller spacing. This grinding mill that facilitates the adjustment of the grinding roller spacing solves the problem of increasing the overall equipment size due to the need to use two independent motors to drive two sets of grinding rollers respectively.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A grinding mill with adjustable roller spacing includes a machine body, a feed inlet fixedly connected to the top of the machine body, and a grinding mechanism provided inside the machine body;

[0008] The grinding mechanism includes a support plate, which is fixedly connected to the inner wall of the machine body. A support frame is fixedly connected to the support plate. Grinding rollers are rotatably connected to both sides of the inner wall of the support frame. Slide tracks are fixedly connected to both ends of the outer wall of the support frame. Slider blocks are slidably connected to both sides of the inner wall of the two sets of slide tracks, and the sliders are rotatably connected to one end of the corresponding grinding roller through bearings.

[0009] Preferably, an installation plate is fixedly connected to the outer wall of the slide, an electric telescopic rod is fixedly connected to the outer wall of the installation plate, a hinge block is fixedly connected to the telescopic end of the electric telescopic rod, traction rods are hinged to both sides of the hinge block, and the ends of the traction rods away from the hinge block are respectively hinged to the corresponding sliders through support rods.

[0010] Preferably, the two ends of the grinding roller are rotatably connected to guard plates, and the guard plates are fixedly connected to the inner wall of the support frame. A sliding plate is slidably connected between the inner walls of the two sets of guard plates on the corresponding side of the inner wall of the support frame.

[0011] Preferably, each grinding roller is provided with a baffle at its top, and the two sides of the baffle are fixedly connected to the outer wall of the corresponding guard plate, and the bottom of the baffle is in contact with the surface of the grinding roller.

[0012] Preferably, gears are respectively provided at the same end of the two sets of grinding rollers, a motor is fixedly connected to the top of the support plate, and pulleys are fixedly connected to the output shaft of the motor and the surface of the gears respectively, and the two sets of pulleys are connected by belt drive.

[0013] Preferably, a transmission cylinder and a transmission disc are provided at the position between the gear and one end of the corresponding grinding roller. The transmission disc is fixedly connected to one end of the grinding roller. Four transmission rods are provided at the position between the transmission disc and the transmission cylinder. The two ends of each transmission rod are connected to the corresponding positions on the surfaces of the transmission disc and the transmission cylinder through universal balls. A sliding rod is slidably connected to the inner wall of the transmission cylinder. The sliding rod is fixedly connected to the gear at the corresponding position.

[0014] Preferably, the transmission cylinder has a keyway, and the slide rod is fixedly connected to a sliding key at the position corresponding to the keyway, and the sliding key is slidably connected to the inner wall of the keyway.

[0015] By employing the above technical solution, this utility model provides a grinding mill that facilitates adjustment of the grinding roller spacing. It possesses at least the following beneficial effects:

[0016] I. This utility model uses an electric telescopic rod to extend and retract, causing the hinge block to move. This allows the traction rods on both sides of the hinge block to pull the slider to slide along the sliding track, facilitating the movement of the grinding rollers connected to the inner wall of the slider via bearings. This movement allows for adjustment of the gap between the grinding rollers, making it convenient for grinding materials of different particle sizes. Furthermore, by setting the slider to slide within the track to provide support for the grinding rollers, good support can be provided for the grinding rollers, preventing the two sets of grinding rollers from tilting during the grinding process.

[0017] II. This utility model uses a starting motor to drive the pulleys to rotate. The belt between the two pulleys drives one of the gears to rotate. The meshing of the two gears allows for the simultaneous rotation of two sets of grinding rollers. By setting a transmission cylinder and transmission disc between the gears and the grinding rollers, when the transmission cylinder and transmission disc shift due to the adjustment of the distance between the two sets of grinding rollers, the transmission rod between the transmission cylinder and the transmission disc tilts to maintain the transmission function. The change in distance between the transmission cylinder and the transmission disc caused by the tilting of the transmission rod can be compensated by a sliding rod sliding on the inner wall of the transmission cylinder to avoid jamming. In this way, the two sets of grinding rollers can still be driven to rotate normally after the distance between the two sets of grinding rollers is adjusted, thereby saving costs by reducing the number of drive devices. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0019] Figure 1 This is a schematic diagram of the grinding mechanism in this utility model;

[0020] Figure 2 This is a schematic diagram of the overall appearance of the present utility model;

[0021] Figure 3 This is a diagram showing the connection relationship between the guard plate and the skateboard in this utility model;

[0022] Figure 4 In this utility model Figure 2 A structural diagram of the gear area.

[0023] In the diagram: 1. Machine body; 2. Feed inlet; 3. Grinding mechanism; 31. Support plate; 32. Support frame; 33. Grinding roller; 331. Bearing; 332. Slider; 34. Slide rail; 35. Mounting plate; 351. Electric telescopic rod; 352. Hinge block; 353. Support rod; 354. Traction rod; 36. Guard plate; 361. Slide plate; 362. Baffle; 37. Transmission cylinder; 371. Transmission disc; 372. Transmission rod; 373. Universal ball; 374. Slide rod; 375. Keyway; 376. Slide key; 38. Gear; 39. Motor; 391. Pulley. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] A grinding mill that allows for easy adjustment of the grinding roller spacing, such as Figure 1 - Figure 4 As shown, the machine includes a body 1, with a feed inlet 2 fixedly connected to the top of the body 1. A grinding mechanism 3 is installed inside the body 1. The grinding mechanism 3 includes a support plate 31, which is fixedly connected to the inner wall of the body 1. A support frame 32 is fixedly connected to the support plate 31. Grinding rollers 33 are rotatably connected to both sides of the inner wall of the support frame 32. Slide rails 34 are fixedly connected to both ends of the outer wall of the support frame 32. Sliding blocks 332 are slidably connected to both sides of the inner wall of the two sets of slide rails 34. The sliding blocks 332 are rotatably connected to one end of the corresponding grinding roller 33 through bearings 331. An installation plate 35 is fixedly connected to the outer wall of the slide rails 34. An electric telescopic rod 351 is fixedly connected to the outer wall of the installation plate 35. A hinge block 352 is fixedly connected to the telescopic end of the electric telescopic rod 351. A traction rod 354 is hinged to both sides of the hinge block 352. The end of the traction rod 354 away from the hinge block 352 is hinged to the corresponding sliding block 332 through a support rod 353.

[0027] In this embodiment, the extension and retraction of the electric telescopic rod 351 drives the hinge block 352 to move, so that the traction rods 354 on both sides of the hinge block 352 pull the slider 332 to slide in the sliding track 34. This facilitates the movement of the grinding roller 33, which is rotatably connected to the inner wall of the slider 332 through the bearing 331, so that the gap between the grinding rollers 33 can be adjusted to facilitate the grinding of materials of different particle sizes. Furthermore, by setting the slider 332 to slide in the track 34 to provide support for the grinding roller 33, good support can be provided for the grinding roller 33, which can prevent the two sets of grinding rollers 33 from tilting during the grinding process.

[0028] Example 2

[0029] like Figure 1 , Figure 3As shown, the two ends of the grinding roller 33 are respectively rotatably connected to the guard plate 36, and the guard plate 36 is fixedly connected to the inner wall of the support frame 32. The inner wall of the support frame 32 is slidably connected to the inner wall of the two sets of guard plates 36 on the corresponding side. The top of the grinding roller 33 is provided with a baffle 362. The two sides of the baffle 362 are fixedly connected to the outer wall of the guard plate 36 at the corresponding position, and the bottom of the baffle 362 is in contact with the surface of the grinding roller 33.

[0030] In this embodiment, by setting the baffle 362 at the top of the grinding roller 33 in a V-shape, the material entering from the feed port 2 can be guided to the position between the two sets of grinding rollers 33 to facilitate grinding. By setting the guard plates 36 at both ends of the grinding roller 33, the grinding dust can be effectively prevented from entering the transmission area inside the machine body 1, which would lead to increased wear and affect the service life.

[0031] Example 3

[0032] like Figure 1 , Figure 4 As shown, gears 38 are respectively installed at the same end of the two sets of grinding rollers 33. A motor 39 is fixedly connected to the top of the support plate 31. The output shaft of the motor 39 and the surface of the gear 38 are respectively fixedly connected to pulleys 391, and the two sets of pulleys 391 are connected by belt drive. A transmission cylinder 37 and a transmission disc 371 are provided between the gear 38 and one end of the corresponding grinding roller 33. The transmission disc 371 is fixedly connected to one end of the grinding roller 33, and the transmission disc 371 and the transmission cylinder 38 are also fixedly connected. Four transmission rods 372 are arranged between positions 7, and both ends of each transmission rod 372 are connected to the corresponding positions of the transmission disk 371 and the transmission cylinder 37 via universal balls 373. A slide rod 374 is slidably connected to the inner wall of the transmission cylinder 37, and the slide rod 374 is fixedly connected to the gear 38 at the corresponding position. A keyway 375 is opened on the transmission cylinder 37, and a slide key 376 is fixedly connected to the position of the slide rod 374 corresponding to the keyway 375, and the slide key 376 is slidably connected to the inner wall of the keyway 375.

[0033] In this embodiment, the starting motor 39 drives the pulley 391 to rotate. The belt between the two pulleys 391 drives one of the gears 38 to rotate. The meshing of the two gears 38 drives the two sets of grinding rollers 33 to rotate simultaneously. By setting a transmission cylinder 37 and a transmission disk 371 between the gears 38 and the grinding rollers 33, when the transmission cylinder 37 and the transmission disk 371 are offset due to the adjustment of the distance between the two sets of grinding rollers 33, the transmission rod 372 between the transmission cylinder 37 and the transmission disk 371 tilts to maintain its transmission function. The change in the distance between the transmission cylinder 37 and the transmission disk 371 caused by the tilt of the transmission rod 372 can be compensated by the sliding rod 374 sliding on the inner wall of the transmission cylinder 37 to avoid jamming. In this way, the two sets of grinding rollers 33 can still be driven to rotate normally after the distance between the two sets of grinding rollers 33 is adjusted, thereby saving costs by reducing the number of drive devices.

[0034] This utility model discloses a grinding mill with adjustable roller spacing. In operation, the motor 39 drives the pulleys 391 to rotate. The belt between the two pulleys 391 drives one of the gears 38 to rotate. The meshing of the two gears 38 allows for the simultaneous rotation of two sets of grinding rollers 33 for grinding. The extension and retraction of the electric telescopic rod 351 moves the hinge block 352, causing the traction rods 354 on both sides of the hinge block 352 to pull the slider 332 along the sliding track 34. This facilitates the movement of the grinding rollers 33, which are rotatably connected to the inner wall of the slider 332 via bearings 331, allowing for easy adjustment of the gap between the grinding rollers 33. The system is designed to facilitate grinding materials of different particle sizes. By setting a transmission cylinder 37 and a transmission disc 371 between the gear 38 and the grinding roller 33, when the transmission cylinder 37 and the transmission disc 371 become offset due to the adjustment of the distance between the two sets of grinding rollers 33, the transmission rod 372 between the transmission cylinder 37 and the transmission disc 371 tilts to maintain its transmission function. The change in the distance between the transmission cylinder 37 and the transmission disc 371 caused by the tilt of the transmission rod 372 can be compensated by the sliding rod 374 sliding on the inner wall of the transmission cylinder 37 to avoid jamming. In this way, the two sets of grinding rollers 33 can still be driven to rotate normally after the distance between the two sets of grinding rollers 33 is adjusted.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flour mill for facilitating adjustment of the distance between the grinding rollers, comprising a machine body (1), characterized in that: The top of the fuselage (1) is fixedly connected with an inlet (2), and the inside of the fuselage (1) is provided with a grinding mechanism (3); The grinding mechanism (3) comprises a supporting plate (31) fixedly connected to the inner wall of the fuselage (1), and the supporting plate (31) is fixedly connected with a supporting frame (32), the inner wall of the supporting frame (32) is rotatably connected with a grinding roller (33) on both sides, and the outer wall of the supporting frame (32) is fixedly connected with a slide (34) at both ends, and the inner wall of the two groups of slides (34) is slidably connected with a sliding block (332) on both sides, and the sliding block (332) is rotatably connected with one end of the corresponding position grinding roller (33) through a bearing (331).

2. A flour mill for facilitating adjustment of the distance between the grinding rollers according to claim 1, characterized in that: The outer wall of the slide (34) is fixedly connected with a mounting plate (35), the outer wall of the mounting plate (35) is fixedly connected with an electric telescopic rod (351), one end of the electric telescopic rod (351) is fixedly connected with a hinged block (352), the two sides of the hinged block (352) are respectively hinged with a traction rod (354), and the other end of the traction rod (354) away from the hinged block (352) is respectively hinged with a sliding block (332) through a support rod (353).

3. A flour mill for facilitating adjustment of the distance between the grinding rollers as claimed in claim 1, wherein: The two ends of the grinding roller (33) are rotatably connected with a guard plate (36), and the guard plate (36) is fixedly connected with the inner wall of the supporting frame (32), and the inner wall of the supporting frame (32) is slidably connected with a sliding plate (361) between the inner walls of the two groups of guard plates (36) on the corresponding side.

4. A mill as claimed in claim 3, wherein: The top of the grinding roller (33) is provided with a baffle (362), the two sides of the baffle (362) are fixedly connected with the outer wall of the corresponding position guard plate (36), and the bottom of the baffle (362) is in contact with the surface of the grinding roller (33).

5. A mill as claimed in claim 4, wherein: The same end of the two groups of grinding rollers (33) is respectively provided with a gear (38), the top of the supporting plate (31) is fixedly connected with a motor (39), the output shaft of the motor (39) is fixedly connected with a belt pulley (391) on the surface of the gear (38), and the two groups of belt pulleys (391) are drivingly connected through a belt.

6. A mill as claimed in claim 5 wherein: The positions between the gear (38) and the corresponding grinding roller (33) one end are respectively provided with a transmission cylinder (37) and a transmission disc (371), wherein the transmission disc (371) is fixedly connected with one end of the grinding roller (33), four transmission rods (372) are arranged between the transmission disc (371) and the transmission cylinder (37), and the two ends of each transmission rod (372) are connected with the corresponding positions on the surface of the transmission disc (371) and the transmission cylinder (37) through universal balls (373), and a sliding rod (374) is slidably connected with the inner wall of the transmission cylinder (37), and the sliding rod (374) is fixedly connected with the corresponding position gear (38).

7. A mill as claimed in claim 6, wherein: The transmission cylinder (37) is provided with a key groove (375), and the sliding rod (374) is respectively fixedly connected with a sliding key (376) at the position corresponding to the key groove (375), and the sliding key (376) is slidably connected with the inner wall of the key groove (375).

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