CN215917521U

CN215917521U - Conical pulverizer

Info

Publication number: CN215917521U
Application number: CN202122358372.XU
Authority: CN
Inventors: 王朝兴
Original assignee: Nanyang Qinxing Cork Products Co ltd
Current assignee: Nanyang Qinxing Cork Products Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-03-01
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a conical pulverizer, comprising: frame, runner assembly, adjustment subassembly, the runner assembly is including moving bistrique, main shaft, bearing and belt pulley, the main shaft is established in the frame, it establishes to move the bistrique cover on the main shaft, the belt pulley cover is established on the main shaft, the belt pulley is used for driving the main shaft is rotatory, the bearing is used for connecting the main shaft with the frame, the adjustment subassembly is including deciding bistrique, adjusting device, feeder hopper, decide the bistrique with move the bistrique and at main shaft axial interval arrangement, adjusting device establishes on the main shaft, and with the feeder hopper is connected, the feeder hopper is established decide the bistrique outside, and with decide the bistrique and connect. The pulverizer can reduce equipment abrasion, prolong the service life of a bearing, and has high raw material utilization rate and high product quality.

Description

Conical pulverizer

Technical Field

The utility model belongs to the technical field of flour mills, and particularly relates to a conical flour mill.

Background

In the prior art, as shown in fig. 1, in the prior art, a flour mill structure includes: the grinding machine comprises a frame, an adjusting mechanism, a bearing seat, a rolling bearing, a belt pulley, a main shaft, a shaft sleeve, a feed hopper, a helical blade, a fixed grinding head and a movable grinding head. The adjusting mechanism, the bearing seat, the feed hopper and the fixed grinding head are fixed on the frame. The main shaft is supported by a bearing seat and a roller bearing, a belt pulley, a shaft sleeve and a movable grinding head are arranged on the main shaft, the shaft sleeve is in clearance fit with the main shaft, a guide flat key is arranged between the shaft sleeve and the main shaft, the belt pulley and the movable grinding head and the main shaft transmit power by the flat key, a helical blade is fixed on the movable grinding head, a motor or other power devices drive the belt pulley to rotate, the belt pulley drives the main shaft to rotate, and further drives the movable grinding head and the helical blade fixed on the movable grinding head to rotate. The main shaft penetrates through the feed hopper, one end of the main shaft is connected with the adjusting mechanism, the conical movable grinding head at the other end is sleeved in the fixed grinding head, a certain gap is kept between the fixed grinding head and the movable grinding head, the working pressure cannot be adjusted under the condition of the same gap, raw materials are wasted, and the product quality is limited.

The specific working process is as follows: the raw materials are fed into a feed hopper, the raw materials are pushed to a movable grinding head fully distributed with tooth grooves by a helical blade fixed on the movable grinding head, and the materials are ground from inside to outside by the grinding of a fixed grinding head and the movable grinding head.

In the flour mill in the prior art, if the specification of raw materials is changed and the gap between the fixed grinding head and the movable grinding head needs to be adjusted, the rotating part, namely the axial position of the main shaft, is adjusted through the adjusting mechanism, and then the axial position of the movable grinding head is adjusted, so that the gap between the movable grinding head and the fixed grinding head is changed. However, since the axial position of the rotating part is adjusted by the adjusting mechanism, the spindle is provided with the spindle sleeve, the spindle sleeve is in clearance fit with the spindle, the guide flat key is arranged between the spindle sleeve and the spindle, and the guide flat key is arranged between the spindle sleeve and the spindle and is connected with the raw material chamber. When a gap exists between the shaft and the shaft sleeve, the shaft and the fixed grinding head deviate to the motor side due to the tensile force of the belt, so that the gap between the fixed grinding head and the movable grinding head close to the motor is small, the gap between the symmetrical sides is large, the grinding effect is uneven, the raw material utilization rate is low, and the product quality is low. In addition, because the adjusting device is in one-way control, and the spring is a small spring, the grinding head can be squeezed when hard impurities exist in the raw materials, and the fixed grinding head and the movable grinding head can generate friction when small materials are ground to be empty, so that noise is generated, and abrasion is accelerated.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

To this end, an embodiment of the present invention provides a conical pulverizer, which can reduce the wear of the main shaft

The conical mill according to the embodiment of the utility model comprises: the grinding machine comprises a frame, a rotating assembly, a movable grinding head, a fixed grinding head, a feed hopper and an adjusting device.

The rotating assembly comprises a main shaft, a bearing and a belt pulley, the main shaft is arranged on the rack, the belt pulley is sleeved on the main shaft and used for driving the main shaft to rotate, and the bearing is used for connecting the main shaft and the rack;

the movable grinding head is sleeved on the main shaft and is fixedly connected with the main shaft;

the fixed grinding head is arranged outside the movable grinding head and is arranged at intervals with the movable grinding head to form a grinding cavity;

the feeding chamber is coaxially connected with the fixed grinding head, the main shaft penetrates through the feeding chamber, conveying blades are respectively arranged inside the feeding chamber and guide materials to the grinding cavity, a feeding hopper is further arranged on the feeding chamber, and a guide shaft is further arranged on the feeding chamber and is positioned on the left side of the feeding chamber;

adjusting device includes clearance adjustment screw rod, clearance adjustment nut, pressure adjustment screw rod, pressure adjustment nut, spring, pressure adjustment screw rod has the hole, and fixes the left end portion in the frame, pressure adjustment nut establishes on the pressure adjustment screw rod, and clearance adjustment screw rod passes through the hole passes pressure adjustment screw rod, clearance adjustment screw rod's left end is equipped with clearance adjustment nut, clearance adjustment screw rod right-hand member with the one end of guiding axle is connected, the other end of guiding axle with the feed chamber is connected, the spring housing is established on the pressure adjustment screw rod, the one end of spring with pressure adjustment nut connects, its other end with the guiding axle is connected.

In some embodiments, the conical pulverizer further comprises a bearing housing disposed outside the bearing and connected to the frame.

In some embodiments, the conical pulverizer is further provided with an oil filling hole, and the oil filling hole is formed in the bearing box and communicated with the interior of the bearing box.

In some embodiments, the conical pulverizer further comprises a fixing screw, wherein the fixing screw is sleeved on the end portion of the spindle and abuts against the end portion of the movable grinding head.

In some embodiments, the adjusting device is further provided with a guide shaft outer sleeve, and the guide shaft outer sleeve is sleeved outside the guide shaft and is arranged at a distance from the guide shaft.

In some embodiments, the adjustment device is further provided with a filler cup disposed on the guide shaft jacket.

In some embodiments, the adjusting device is further provided with two pressure bearings, one of which is arranged between the pressure adjusting nut and the spring, and the other of which is arranged at the right side of the gap adjusting nut and abuts against the gap adjusting nut.

In some embodiments, the outer side of the fixed grinding head is further provided with a roller, the frame is provided with a track, the roller is connected with the fixed grinding head, and the roller can roll along the track.

In some embodiments, the outer side of the movable grinding head and the inner side of the fixed grinding head are both provided with tooth grooves.

Has the advantages that:

1. according to the conical pulverizer, the shaft is directly connected with the bearing, and no gap exists; the bearing is placed in the bearing box and is lubricated by engine oil, so that the resistance is reduced, the energy and the electricity are saved, the service lives of the shaft and the bearing are prolonged, and the maintenance working hours and the accessory consumption are reduced; when the grinding head works, the peripheral gaps of the fixed grinding head and the movable grinding head are consistent all the time, raw materials can be uniformly ground, and the raw material utilization rate and the product quality are improved.

2. The adjustment clearance is changed into two-way control (two screw rods respectively control clearance adjustment and pressure adjustment), the elastic range of the spring is increased, the guide shaft is used, even if the raw material is empty, the fixed grinding head and the movable grinding head cannot generate friction, and unnecessary grinding of an ancient egg-shaped, holed wind instrument and noise is reduced. In addition, when raw materials are mixed into the iron blocks and the stones, the springs can be compressed, the fixed grinding head can automatically retreat, and the grinding head is protected from being squeezed and broken. The working pressure of the mill can be adjusted by the pressure adjusting screw under the condition of the same clearance, so that the utilization rate of raw materials and the quality of products can be further improved.

3. The pressure bearing is arranged, so that the resistance borne by the two nuts can be reduced during adjustment.

4. The grinding head can be prevented from dropping off the main shaft by arranging the fixing screw.

Drawings

FIG. 1 is a schematic view of a prior art mill;

FIG. 2 is a schematic view of a conical mill according to an embodiment of the present invention;

FIG. 3 is a schematic view of an adjusting apparatus of a conical pulverizer according to an embodiment of the present invention;

reference numerals:

a frame 1; the main shaft 21 of the rotating assembly 2; a bearing 22; a pulley 23; a movable grinding head 3; a fixed grinding head 4; a feed hopper 5; an adjusting device 6; a gap adjusting screw 61; a gap adjustment nut 62; a pressure adjusting screw 63, a pressure adjusting nut 64; a spring 65; a pressure bearing 66; a guide shaft housing 67; a micro-control filler cup 68; a feeding chamber 7; a bearing housing 8; an oil filling hole 9 and a fixing screw 10; a roller 11; a rail 12; a grinding powder cavity 13 and a guide shaft 14.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings.

As shown in fig. 2 and 3, the conical mill according to the embodiment of the present invention includes: the grinding machine comprises a frame 1, a rotating assembly 2, a movable grinding head 3, a fixed grinding head 4, a feed hopper 5 and an adjusting device 6.

The frame 11 is the basis of whole milling machine, and main shaft 21 establishes in the top of frame 1, through bearing 22 normal running fit between main shaft 21 and the frame 1, and the bearing box 8 is equipped with to the bearing 22 outside, is equipped with machine oil in the bearing box 8, can be used for lubricated bearing 22, is equipped with oil filler hole 9 on the bearing box, can add machine oil. The movable grinding head 3 can be a conical grinding head, the movable grinding head 3 is sleeved at the left end of the main shaft 21, a fixing screw 10 is arranged on the left side of the movable grinding head 3, the fixing screw 10 is fixedly connected to the main shaft through threads, and the fixing screw 10 is abutted against the movable grinding head. The movable grinding head 3 is fixedly connected with the main shaft 21 through a flat key. The pulley 23 is fitted over the right end of the main shaft 21. The belt pulley 23 can drive the main shaft 21 to rotate, and the main shaft 21 can drive the movable grinding head 3 to rotate through a flat key. The outer side of the movable grinding head 3 is provided with a helical blade. The external driving device may be a transmission belt driven by a motor, and the external driving device drives the belt pulley 23 to rotate, so as to drive the main shaft 21 to rotate, thereby driving the grinding head 3 to rotate, so that the helical blade rotates along with the grinding head 3.

The inlet chamber 7 is arranged coaxially with the main shaft 21, and the main shaft 21 partly protrudes into the inlet chamber 7. The fixed grinding heads 4 and the feeding chamber 7 are coaxially distributed, and the fixed grinding heads 4 are hermetically connected with the feeding chamber 7. The fixed grinding head 4 can be a conical grinding head, the movable grinding head 3 is positioned in the fixed grinding head 4, and a grinding cavity 13 is formed between the movable grinding head 3 and the fixed grinding head 4. The grinding chamber 13 is gradually reduced from left to right. Tooth grooves which are correspondingly distributed can be arranged on the outer side of the movable grinding head 3 and the inner side of the fixed grinding head 4. A feed hopper 5 is arranged above the fixed grinding head 431, and the feed hopper 5 can be communicated with the inner cavity. The lower part of the feeding chamber 7 is provided with a roller 11, the roller 11 is fixedly connected with the feeding chamber 7 through a bolt, the rack 1 is provided with a rail 12, and the roller 11 can roll along the direction of the rail 12, so that the feeding chamber 7 can move in the axial direction. The left side of the feeding chamber is provided with a guide shaft 14, the adjusting device 6 is arranged on the left side of the feeding chamber 7, and the adjusting device is connected with the guide shaft 14.

The adjusting device 6 includes a gap adjusting screw 61, a gap adjusting nut 62, a pressure adjusting screw 63, a pressure adjusting nut 64, a guide shaft, and a spring 65. The pressure adjusting screw 63 is fixed at the left end of the frame 1, the pressure adjusting screw 63 is a hollow rod, the pressure adjusting nut 64 is arranged on the pressure adjusting screw 63, the pressure bearing 66 is arranged at the right side of the pressure adjusting nut 64 and is stopped against the pressure adjusting nut 64, and the pressure bearing 66 is a first pressure bearing 66. The gap adjusting screw 61 is provided on the left side of the pressure adjusting screw 63, and partially extends into the pressure adjusting screw 63. The gap adjustment nut 62 is provided on the gap adjustment screw 61, and the pressure bearing 66 is provided on the right side of the gap adjustment nut 62 to abut against the gap adjustment nut 62, and the pressure bearing 66 is a second pressure bearing 66. The right end of the pressure adjusting screw 63 is connected with the guide shaft 14, a guide shaft outer sleeve 67 is sleeved on the guide shaft 14, the guide shaft outer sleeve 67 and the guide shaft 14 are arranged at intervals, the guide shaft outer sleeve 67 is fixed on the machine frame 1 through a support, and an oil filling cup 68 is further arranged on the guide shaft outer sleeve 67. A spring 65 is further arranged between the first pressure bearing 66 and the guide shaft 14, the spring 65 is sleeved on the pressure adjusting screw 63, one end of the spring 65 is connected with the first pressure bearing 66, and the other end of the spring 65 is connected with the guide shaft 14.

When the flour mill works, raw materials are fed into the feed hopper 5 by manpower or other equipment, the belt pulley 23 is driven by a motor or other power equipment to rotate, so that the main shaft 21 is driven to rotate, the main shaft 21 drives the movable grinding head 3 and the helical blade to rotate, and the helical blade can extrude the raw materials fed into the inner cavity to the movable grinding head 3. In the process of rotating the movable grinding head 3, the raw materials can be ground into fine particles through the grinding between the movable grinding head 3 and the fixed grinding head 4. The size of the grinding chamber 13 can be changed by the adjusting device 6. When the specification of the raw materials is changed, the gap adjusting screw 61 can move axially by rotating the gap adjusting nut 62, so that the feeding chamber 7 is driven to move axially, and the gap between the movable grinding head 3 and the fixed grinding head 4 is increased or reduced, thereby meeting the production requirement. The pressure adjusting nut 64 can adjust the working pressure of the grinding head, thereby meeting the requirements of various raw material production. The utilization rate of raw materials and the product quality can be improved. In addition to this, the spring 65 of the adjusting device 6 can also act as a protective device: when hard impurities are mixed in the raw materials, the hard impurities overcome the tension of the spring 65, so that the guide shaft 14 and the feeding chamber 7 connected with the guide shaft move in the direction away from the movable grinding head 3, and the movable grinding head 3 is prevented from being damaged.

According to the conical pulverizer disclosed by the embodiment of the utility model, a shaft sleeve is omitted, the defects of easy abrasion and eccentric wear are overcome, the repair working hours and the accessory loss are reduced, the raw material utilization rate and the product quality are improved, the grease lubrication is changed into the engine oil lubrication, the resistance is reduced, the service life of a bearing is prolonged, and the energy and the electricity are saved.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the utility model and it is intended to cover in the claims the utility model as defined in the appended claims.

In the description of the present invention, it is to be understood that the terms "left", "right", "front", "rear", "upper", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.

Claims

1. A conical mill, comprising:

a frame;

the feeding chamber is coaxially connected with the fixed grinding head, the main shaft penetrates through the feeding chamber, conveying blades are arranged in the feeding chamber and guide materials to the grinding cavity through the conveying blades, a feeding hopper is further arranged on the feeding chamber, and a guide shaft is further arranged in the feeding chamber and is positioned on the left side of the feeding chamber;

its characterized in that still includes adjusting device, adjusting device includes clearance adjustment screw, clearance adjustment nut, pressure adjustment screw, pressure adjustment nut, guiding axle and spring, the pressure adjustment screw is the cavity pole, and fixes the left end portion in the frame, the pressure adjustment nut is established on the pressure adjustment screw, clearance adjustment screw part stretches into the pressure adjustment screw, the left end of clearance adjustment screw is equipped with clearance adjustment nut, clearance adjustment screw right-hand member with the one end of guiding axle is connected, the other end of guiding axle with the feed chamber is connected, the spring housing is established on the pressure adjustment screw, the one end of spring with the pressure adjustment nut is connected, its other end with the guiding axle is connected.

2. A conical mill according to claim 1, further comprising a bearing housing disposed outside the bearing and spaced from the movable grinding head, the bearing housing being connected to the frame.

3. A conical mill according to claim 2, further comprising an oil feed hole provided in said bearing housing and communicating with the inside of said bearing housing.

4. A conical mill according to claim 2, further comprising a fixing screw, said fixing screw being fitted around the end of the main shaft and abutting against the end of the movable grinding head.

5. A conical mill according to claim 1, further comprising a guide shaft sleeve, said guide shaft sleeve being disposed around said guide shaft and spaced from said guide shaft.

6. Conical mill according to claim 5, further comprising an oil filling cup, said oil filling cup being provided on said guide shaft housing.

7. A conical mill according to claim 1, further comprising two pressure bearings, one of said two pressure bearings being disposed between said pressure adjusting nut and said spring, and the other of said two pressure bearings being disposed to the right of said gap adjusting nut and abutting against said gap adjusting nut.

8. A conical mill according to claim 1, characterized in that rollers are provided on the underside of the inlet chamber, and that the frame is provided with rails, and that the rollers are connected to the stationary grinding head and can roll along the rails.

9. A conical mill according to claim 1, characterized in that tooth grooves are provided on both the outer side of said movable grinding head and the inner side of said fixed grinding head.