阅读说明：本技术 一种高压辊进料用预压装置 (Prepressing device for feeding of high-pressure roller ) 是由 于伟东 张擎宇 曲明辉 李向军 冯泉 张威 康艳超 张烜 刘春明 张强 于 2021-08-25 设计创作，主要内容包括：一种高压辊进料用预压装置属于选矿破碎技术领域。本发明包括驱动半轴和驱动单元,所述驱动单元包括依次连接的电机、联轴器和空心轴减速器,所述驱动半轴与所述空心轴减速器配合连接,其特征在于,所述驱动半轴下部的外壁上轴向设置有滑动槽和滑键,所述驱动半轴的下部配合套有半联轴节,所述半联轴节上设置有配合所述滑动槽的销孔和配合所述滑键的凹槽,穿过所述销孔设置有定位销,所述定位销插至所述滑动槽中,所述半联轴节能够相对所述驱动半轴进行轴向运动,所述半联轴节的外部套设有预压弹簧。本发明能够实现由带压给料,代替提供了原本由料柱来产生的料压,进而降低了高压辊对于物料的进辊工艺高度。(A prepressing device for feeding of a high-pressure roller belongs to the technical field of mineral separation and crushing. The invention comprises a driving half shaft and a driving unit, wherein the driving unit comprises a motor, a coupling and a hollow shaft reducer which are sequentially connected, and the driving half shaft is matched and connected with the hollow shaft reducer. The invention can realize feeding under pressure, and replace the feeding pressure originally generated by the material column, thereby reducing the roller feeding process height of the high-pressure roller to the material.)

1. A prepressing device for feeding a high-pressure roller comprises a driving half shaft (1) and a driving unit, wherein the driving unit comprises a motor (2), a coupling (3) and a hollow shaft reducer (4) which are sequentially connected, the driving half shaft (1) is matched and connected with the hollow shaft reducer (4), the prepressing device is characterized in that a sliding groove (5) and a sliding key (6) are axially arranged on the outer wall of the lower part of the driving half shaft (1), a half coupling (7) is matched and sleeved on the lower part of the driving half shaft (1), a pin hole (8) matched with the sliding groove (5) and a groove (9) matched with the sliding key (6) are arranged on the half coupling (7), a positioning pin (10) is arranged through the pin hole (8), the positioning pin (10) is inserted into the sliding groove (5), and the half coupling (7) can axially move relative to the driving half shaft (1), the outside cover of half shaft coupling (7) is equipped with pre-compaction spring (11), the bottom top of pre-compaction spring (11) is in the upper surface of the flange of half shaft coupling (7) lower part, the bottom detachably of half shaft coupling (7) is connected with defeated material screw axis (12), defeated material screw axis (12) lower part is provided with a plurality of helical blade (13) along the axial, the lower part of defeated material screw axis (12) inserts to toper feed bin (14) in, the bottom of toper feed bin (14) is open structure, the top detachably of toper feed bin (14) is connected with feeding apron (15), be provided with a plurality of feed inlets (16) on feeding apron (15).

2. The prepressing device for high-pressure roller feeding according to claim 1, characterized in that the self-aligning roller bearing (17) and the thrust bearing (18) are sequentially arranged on the upper portion of the driving half shaft (1) from top to bottom.

3. A prepressing apparatus for feeding high-pressure roller according to claim 1, characterized in that a spacer (19) is provided between the prepressing spring (11) and the upper surface of the flange of the lower portion of the half coupling (7).

4. A prepressing apparatus for high-pressure roller feeding according to claim 1, characterized in that the top of the half coupling (7) is provided with a travel limit switch (20).

5. A prepressing device for high-pressure roller feeding according to claim 1, wherein key slots are correspondingly arranged on the contact surface between said half coupling (7) and said screw conveying shaft (12), and a power key (21) is inserted into a through hole formed by two key slots.

6. The prepressing device for high-pressure roller feeding according to claim 1, wherein the helical blade (13) comprises a supporting blade (22) and a wear-resistant blade (23), the supporting blade (22) and the wear-resistant blade (23) are both concave structures, the supporting blade (22) is connected with the feed delivery helical shaft (12), and the wear-resistant blade (23) is detachably connected with the concave side of the supporting blade (22) through a wear-resistant high-strength bolt.

7. The prepressing device for high-pressure roller feeding according to claim 1, wherein the helical blades (13) are arranged symmetrically at two or four ends along the axial direction of the feeding screw shaft (12).

8. A prepressing apparatus for high-pressure roller feeding according to claim 1, characterized in that the feeding ports (16) are symmetrically arranged on the feeding cover plate (15).

9. The prepressing device for high-pressure roller feeding according to claim 1, characterized in that the conical silo (14) is made of wear-resistant welded steel plate.

Technical Field

The invention belongs to the technical field of ore dressing crushing, and particularly relates to a prepressing device for feeding of a high-pressure roller.

Background

The high-pressure roller is a large-scale fine crushing device used in industrial production, and is widely applied to the production of cement industry, metallurgical industry, mine crushing, solid waste crushing and the like. The broken feeding of conventional high-pressure roller is the material column form, is connected to the high-pressure roller through the conveying pipeline that the section bar welding formed under the feed bin, and the material column pressure of forming through the material dead weight of vertical height provides feeding pressure for the high-pressure roller roll system material. In order to generate a sufficient silo-pressing force, the height of the feed pipe needs to be more than 5m, thereby forming a restriction on the process arrangement.

Disclosure of Invention

Aiming at the problems, the invention makes up the defects of the prior art and provides a prepressing device for feeding of a high-pressure roller; the invention can realize feeding under pressure, and replace the feeding pressure originally generated by the material column, thereby reducing the roller feeding process height of the high-pressure roller to the material.

In order to achieve the purpose, the invention adopts the following technical scheme.

The invention provides a prepressing device for feeding a high-pressure roller, which comprises a driving half shaft and a driving unit, wherein the driving unit comprises a motor, a coupling and a hollow shaft reducer which are sequentially connected, the driving half shaft is connected with the hollow shaft reducer in a matching way, and the prepressing device is characterized in that a sliding groove and a sliding key are axially arranged on the outer wall of the lower part of the driving half shaft, a half coupling is sleeved on the lower part of the driving half shaft in a matching way, a pin hole matched with the sliding groove and a groove matched with the sliding key are arranged on the half coupling, a positioning pin penetrates through the pin hole and is inserted into the sliding groove, the half coupling can axially move relative to the driving half shaft, a prepressing spring is sleeved outside the half coupling, the bottom of the prepressing spring is propped against the upper surface of a flange on the lower part of the half coupling, and a material conveying screw shaft is detachably connected with the bottom of the half coupling, defeated material screw axis lower part is provided with a plurality of helical blade along the axial, the lower part of defeated material screw axis inserts to the toper feed bin in, the bottom of toper feed bin is open structure, the top detachably of toper feed bin is connected with the feeding apron, be provided with a plurality of feed inlets on the feeding apron.

Furthermore, the upper part of the driving half shaft is sequentially provided with a self-aligning roller bearing and a thrust bearing from top to bottom.

Further, a gasket is arranged between the pre-pressing spring and the upper surface of the flange at the lower part of the half coupling.

Further, a travel limit switch is arranged at the top of the half coupling.

Furthermore, key grooves are correspondingly arranged on contact surfaces between the half coupling and the material conveying screw shaft, and power keys are inserted into through holes formed by the two key grooves.

Further, helical blade includes support blade and wear-resisting blade, support blade with wear-resisting blade is concave type structure, support blade with defeated material screw shaft connects, wear-resisting blade passes through wear-resisting high strength bolt detachably and corresponds the connection in support blade's concave side.

Furthermore, the helical blades are symmetrically arranged at two ends or four ends along the axial direction of the material conveying helical shaft.

Further, the feed inlets are symmetrically arranged on the feed cover plate.

Further, the conical bin is made of wear-resistant welded steel plates.

The invention has the beneficial effects.

The invention changes the feeding pre-pressure generated by the gravity of the material column into the way that the driving unit provides the external power, calculates the pre-pressure generated by the height of the material column, and transmits the power provided by the driving unit to the pre-pressing spring and the helical blade to provide the pre-pressure of the material, thereby completely meeting the requirement of the feeding pre-pressure of the high-pressure roller, further reducing the height of the capital construction process of a factory building and the like, saving the space and the height of a discharge bin, and saving the construction cost of basic civil engineering and the like.

Drawings

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Fig. 1 is a side view of the overall structure of the present invention.

Figure 2 is a side sectional view of the overall structure of the present invention.

Figure 3 is a side view of the structure of the present invention with the conical bin and drive unit removed.

FIG. 4 is a structural side view of the drive axle shaft of the present invention.

Fig. 5 is a structural side view of the coupling halves of the present invention.

Fig. 6 is a top view of the structure of the half coupling of the present invention.

Fig. 7 is a top view of the structure of the feed cover plate of the present invention.

The labels in the figure are: the device comprises a driving half shaft 1, a motor 2, a coupler 3, a hollow shaft reducer 4, a sliding groove 5, a sliding key 6, a half coupler 7, a pin hole 8, a groove 9, a positioning pin 10, a pre-pressing spring 11, a material conveying spiral shaft 12, a spiral blade 13, a conical bin 14, a feeding cover plate 15, a feeding hole 16, a self-aligning roller bearing 17, a thrust bearing 18, a gasket 19, a stroke limit switch 20, a power key 21, a supporting blade 22 and a wear-resistant blade 23.

Detailed Description

The embodiment provides a prepressing device for feeding a high-pressure roller, which is shown in a combined drawing and comprises a driving half shaft 1 and a driving unit, wherein the driving unit comprises a motor 2, a coupler 3 and a hollow shaft reducer 4 which are sequentially connected, the driving half shaft 1 is matched and connected with the hollow shaft reducer 4, and the driving unit transmits torque to the driving half shaft 1 through the hollow shaft reducer 4.

The outer wall of the lower portion of the driving half shaft 1 is axially provided with a sliding groove 5 and a sliding key 6, the lower portion of the driving half shaft 1 is sleeved with a half coupling 7 in a matching mode, the half coupling 7 is provided with a pin hole 8 matched with the sliding groove 5 and a groove 9 matched with the sliding key 6, a positioning pin 10 penetrates through the pin hole 8 and is inserted into the sliding groove 5, the half coupling 7 can move axially relative to the driving half shaft 1, the half coupling 7 is positioned on the driving half shaft 1 through the sliding groove 5 and the positioning pin 10, torque transmission is carried out between the half coupling 7 and the driving half shaft 1 through the circumferential interaction force between the sliding key 6 and the groove 9, the half coupling 7 can only slide axially along the driving half shaft 1, and the driving torque transmitted by the upper driving half shaft 1 cannot be influenced.

The upper part of the driving half shaft 1 is provided with a self-aligning roller bearing 17 and a thrust bearing 18 in sequence from top to bottom. The upper self-aligning roller bearing 17 is used for ensuring that the driving half shaft 1 only bears the torque, and the lower thrust bearing 18 is used for bearing the dead weight of the lower conveying screw shaft 12.

The outer portion of the half coupling 7 is sleeved with a pre-pressing spring 11, the bottom of the pre-pressing spring 11 is pressed against the upper surface of the flange at the lower portion of the half coupling 7, and a gasket 19 is arranged between the pre-pressing spring 11 and the upper surface of the flange at the lower portion of the half coupling 7. The pre-pressing spring 11 is adjusted through the calculated pre-pressing force required by the high-pressure roller material, the pre-pressing force can be adjusted by increasing or decreasing the thickness of the gasket 19 through the pre-pressing spring 11, so that the pre-pressing force required to be provided can be met, and the pre-pressing force required to be provided can be directly provided through the pre-pressing spring 11 with different equivalent bending stiffness, different spring wire diameters and different inner and outer diameters.

The bottom of the half coupling 7 is detachably connected with a material conveying screw shaft 12, key grooves are correspondingly arranged on the contact surface between the half coupling 7 and the material conveying screw shaft 12, a power key 21 is inserted into a through hole formed by the two key grooves, the power key 21 can transmit the torque transmitted to the driving half shaft 1 to the material conveying screw shaft 12, and meanwhile, the bolt used for combining the half coupling 7 and the material conveying screw shaft 12 is prevented from being sheared and damaged.

The lower part of the material conveying screw shaft 12 is provided with a plurality of screw blades 13 along the axial direction, each screw blade 13 comprises a supporting blade 22 and a wear-resistant blade 23, each supporting blade 22 and each wear-resistant blade 23 are of an inwards concave structure, the screw blades 13 of the concave structures can wrap materials in inner cavities formed by concave parts, and then the reaction force of the materials can point to the screw blades 13, so that the pressure provided by the screw blades 13 is ensured to act on a working area of a high-pressure roller system along the axial direction. The supporting blades 22 are connected with the screw conveying shaft 12 and play a role of supporting. Wear-resisting blade 23 corresponds through wear-resisting high strength bolt detachably and connects in the concave surface side of supporting blade 22, and wear-resisting blade 23 directly contacts with the material, can change alone after long-time work is worn out.

The helical blades 13 are arranged symmetrically at two or four ends along the axial direction of the screw conveying shaft 12. The purpose of the symmetrical double or four head arrangement is: when the helical blades 13 rotate to push the materials, the reaction forces in the horizontal direction of the materials are equal in magnitude and opposite in direction, and can be offset mutually; the reaction component forces in the vertical direction have the same direction and act on the material conveying screw shaft 12 together, so that the material conveying screw shaft 12 always keeps along the vertical direction and deflection does not occur.

In the working process of the device, the pre-pressing spring 11 can generate pre-pressing force on the material, the material is pushed downwards through the action of the spiral blade 13 along with the rotation of the material conveying spiral shaft 12, when the lower part of the material is blocked or jammed due to overlarge feeding amount, the material can react on the spiral blade 13 with the pre-pressing force, the spiral blade 13 drives the material conveying spiral shaft 12 and the half coupling 7 to move upwards together and compress the pre-pressing spring 11, and the pre-pressing spring 11 can play a buffering role. And the top of the half coupling 7 is provided with a travel limit switch 20, when the half coupling 7 moves upwards to exceed a safe travel, the travel limit switch 20 is triggered, and a controller of the motor 2 feeds back a control signal to cut off the power of the motor 2, so that the whole machine is protected.

The lower portion of the material conveying screw shaft 12 is inserted into the conical bin 14, the conical bin 14 is made of wear-resistant welded steel plates, the wear resistance is enhanced, the service life is prolonged, the bottom of the conical bin 14 is of an open structure and used for discharging materials subjected to pre-pressure, the top of the conical bin 14 is detachably connected with a feeding cover plate 15, a plurality of symmetrically arranged feeding holes 16 are formed in the feeding cover plate 15, the feeding holes 16 are used for adding materials into the conical bin 14, the symmetrically arranged feeding holes 16 are beneficial to uniform conveying of the materials, and the whole pre-pressure implementation process of the materials is directly carried out in the conical bin 14.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.