Bending stress-free structure of belt pulley main shaft of disc crusher

Abstract

The invention relates to the field of disc crusher transmission, and discloses a disc crusher belt pulley spindle bending stress-free structure which comprises a disc crusher body, one side of the disc crusher body is rotatably connected with a transmission spindle through a spindle bearing seat, and one end of the transmission spindle is fixedly mounted on the inner side of a coupler through a flat key; the other end of the coupler is fixedly connected with one end of the belt pulley, the other side of the belt pulley is supported on the load-bearing flange bearing sleeve through the deep groove ball bearing, the load-bearing flange bearing sleeve and one end of the main shaft bearing seat are fixedly installed, and the main shaft bearing seat is fixedly connected with one end of the disc pulverizer body. Therefore, the transmission main shaft can only rotate under the action of the belt pulley through the coupler, and the transmission main shaft cannot be bent due to pulling force.

Description

Technical Field

[0001] The invention relates to the field of disc crusher transmission, in particular to a disc crusher belt pulley main shaft structure that is not subject to bending stress. Background Art

[0002] Disc crusher is mainly used for crushing medium hardness mineral materials, and is applied to coal, metallurgy, geology, building materials, chemical industry and other industries. The traditional disc crusher is mainly driven by the motor to rotate the pulley, and the pulley drives the moving grinding disc on the main shaft to rotate, so that the moving grinding disc and the fixed grinding disc produce relative rotation motion, so that the material between the two discs is crushed and falls into the drop box from the gap between the two discs.

[0003] However, when the prime mover drives the pulley to rotate through the belt, the belt drives the pulley to generate two forces, one is the rotational force driving the pulley, and the other is the tensioning force of the belt on the pulley. This tension causes the transmission main shaft connected to the pulley to bend and deform, thereby hindering its use or even causing failure. For this reason, the present invention proposes a structure in which the main shaft of the disc crusher pulley is not subject to bending stress. Summary of the invention

[0004] The object of the present invention is to provide a disc pulverizer pulley main shaft structure that is not subject to bending stress, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a disc crusher pulley main shaft is not subjected to bending stress structure, including a disc crusher body, one side of the disc crusher body is rotatably connected with a transmission main shaft through a main shaft bearing seat, and one end of the transmission main shaft is fixedly installed with the inner side of a coupling through a flat key, the other end of the coupling is fixedly connected with one end of the pulley, and the other side of the pulley is supported on a load-bearing flange bearing sleeve through a deep groove ball bearing, the load-bearing flange bearing sleeve is fixedly installed with one end of the main shaft bearing seat, and the main shaft bearing seat is fixedly connected with one end of the disc crusher body.

[0006] Preferably, the deep groove ball bearing is a double-mouth deep groove ball bearing, and the coupling is provided with an inner hole and an outer spline structure adapted to the flat key.

[0007] Preferably, one side of the pulley is provided with an internal spline adapted to the external spline structure of the coupling, and the other side of the pulley is provided with a bearing hole adapted to the deep groove ball bearing.

[0008] Preferably, a bearing sealing cover is fixedly mounted on one end of the main shaft bearing seat, and a through hole matching the outer side of the transmission main shaft is opened at the center of the bearing sealing cover.

[0009] Preferably, a sealing cover and a pulley sealing cover are fixedly mounted on both sides of the pulley.

[0010] Preferably, a through hole adapted to the outer side of the load-bearing flange bearing sleeve is opened at the center of the pulley sealing cover.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the structure of the present invention, when the prime mover drives the pulley to rotate through the belt, the belt drives the pulley to generate two forces, one is the rotational force driving the pulley, and the other is the tensioning force of the belt on the pulley. This tension causes the transmission main shaft to bend and deform, thereby hindering its use or even failing. The rotational force of the pulley drives the transmission main shaft to rotate through the coupling, and the tension on the pulley is transmitted to the disc crusher body through the deep groove ball bearing, the load-bearing flange bearing sleeve and the main shaft bearing seat. In this way, the transmission main shaft is only subjected to the rotational force of the pulley, thereby avoiding the generation of bending stress on the transmission main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention.

[0014] In the figure: 1. Disc crusher body; 2. Transmission main shaft; 3. Main shaft bearing seat; 4. Flat key; 5. Coupling; 6. Pulley; 7. Deep groove ball bearing; 8. Load-bearing flange bearing sleeve; 9. Sealing cover; 10. Pulley sealing cover; 11. Bearing sealing cover. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Example

[0017] See also Figure 1 The disc crusher pulley spindle shown in the figure is not subject to bending stress structure, including a disc crusher body 1, one side of the disc crusher body 1 is rotatably connected with a transmission spindle 2 through a spindle bearing seat 3, and one end of the transmission spindle 2 is fixedly installed with the inner side of a coupling 5 through a flat key 4, the other end of the coupling 5 is fixedly connected with one end of a pulley 6, and the other side of the pulley 6 is supported on a load-bearing flange bearing sleeve 8 through a deep groove ball bearing 7, the load-bearing flange bearing sleeve 8 is fixedly installed with one end of the spindle bearing seat 3, and the spindle bearing seat 3 is fixedly connected with one end of the disc crusher body 1.

[0018] In this embodiment, the deep groove ball bearing 7 is a two-mouth deep groove ball bearing, and the coupling 5 is provided with an inner hole and an outer spline structure adapted to the flat key 4, an inner spline adapted to the outer spline structure of the coupling 5 is provided on one side of the pulley 6, and a bearing hole adapted to the deep groove ball bearing 7 is opened on the other side of the pulley 6, a bearing sealing cover 11 is fixedly installed at one end of the main shaft bearing seat 3, and a through hole adapted to the outer side of the transmission main shaft 2 is opened at the center of the bearing sealing cover 11, and a sealing cover 9 and a pulley sealing cover 10 are fixedly installed on both sides of the pulley 6, and a through hole adapted to the outer side of the load-bearing flange bearing sleeve 8 is opened at the center of the pulley sealing cover 10.

[0019] Furthermore, when the prime mover rotates the pulley 6 through the belt, the belt drives the pulley 6 to generate two forces, one is the rotational force driving the pulley 6, and the other is the tension of the belt on the pulley 6. This tension causes the transmission main shaft 2 to bend and deform, thereby hindering its use or even failing. The rotational force of the pulley 6 drives the transmission main shaft 2 to rotate through the coupling 5, and the tension on the pulley 6 is transmitted to the disc crusher body 1 through the deep groove ball bearing 7, the load-bearing flange bearing sleeve 8 and the main shaft bearing seat 3. In this way, the transmission main shaft 2 is only subjected to the rotational force of the pulley 6, thereby avoiding the transmission main shaft 2 from generating bending stress.

[0020] Working principle of the present invention: when the prime mover drives the pulley 6 to rotate through the belt, the belt drives the pulley 6 to generate two forces, one is the rotational force driving the pulley 6, and the other is the tension of the belt on the pulley 6. This tension causes the transmission main shaft 2 to bend and deform, thereby hindering its use or even failing. The rotational force of the pulley 6 drives the transmission main shaft 2 to rotate through the coupling 5, and the tension on the pulley 6 is transmitted to the disc crusher body 1 through the deep groove ball bearing 7, the load-bearing flange bearing sleeve 8 and the main shaft bearing seat 3. In this way, the transmission main shaft 2 is only subjected to the rotational force of the pulley 6, thereby avoiding the transmission main shaft 2 from generating bending stress.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disc pulverizer pulley main shaft structure free from bending stress, comprising a disc pulverizer body (1), characterized in that: One side of the disc crusher body (1) is rotatably connected to a transmission main shaft (2) via a main shaft bearing seat (3), and one end of the transmission main shaft (2) is fixedly mounted on the inner side of a coupling (5) via a flat key (4), the other end of the coupling (5) is fixedly connected to one end of a pulley (6), and the other side of the pulley (6) is supported on a load-bearing flange bearing sleeve (8) via a deep groove ball bearing (7), the load-bearing flange bearing sleeve (8) is fixedly mounted on one end of the main shaft bearing seat (3), and the main shaft bearing seat (3) is fixedly connected to one end of the disc crusher body (1).

2. The disc crusher pulley main shaft is not subjected to bending stress according to claim 1, characterized in that: The deep groove ball bearing (7) is a two-port deep groove ball bearing, and the coupling (5) is provided with an inner hole and an outer spline structure adapted to the flat key (4).

3. The disc crusher pulley main shaft is not subjected to bending stress according to claim 2, characterized in that: One side of the pulley (6) is provided with an internal spline adapted to the external spline structure of the coupling (5), and the other side of the pulley (6) is provided with a bearing hole adapted to the deep groove ball bearing (7).

4. The disc crusher pulley main shaft is not subjected to bending stress according to claim 3, characterized in that: A bearing sealing cover (11) is fixedly mounted on one end of the main shaft bearing seat (3), and a through hole adapted to the outer side of the transmission main shaft (2) is opened at the center of the bearing sealing cover (11).

5. The disc crusher pulley main shaft is not subjected to bending stress according to claim 4, characterized in that: A sealing cover (9) and a pulley sealing cover (10) are respectively fixedly mounted on both sides of the pulley (6).

6. The disc pulverizer pulley main shaft structure free from bending stress according to claim 5, characterized in that: A through hole adapted to the outer side of the load-bearing flange bearing sleeve (8) is provided at the center of the pulley sealing cover (10).

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