Eccentric sealing structure of tooth roller crusher

Abstract

The utility model discloses an eccentric sealing structure of a tooth roller crusher, and relates to the technical field of crushers. The side end plate is arranged at the side end of the tooth roller crusher, eccentric holes are formed in the surface of the side end plate at intervals, and an extension plate is fixedly arranged at the position, below the eccentric holes, of the outer wall of the side end plate; and the bearing seat is fixedly arranged at the top of the extension plate, an eccentric bearing sleeve is installed in the bearing seat, a rotating shaft is fixedly arranged on an inner ring of the eccentric bearing sleeve, and the rotating shaft penetrates through the eccentric hole and extends into the tooth roller crusher. Through the cooperation of the sealing mechanism, the material blocking cover and the spherical protrusion, crushed materials are effectively prevented from escaping from the eccentric hole, environmental pollution is reduced, the adjustable design of the limiting ring enables the sealing state to be finely adjusted according to the actual situation, sealing reliability is improved, the spring provides constant pressure for the spherical protrusion, and the sealing effect is improved. And the sealing contact is always kept good in the position change process of the tooth roller shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to an eccentric sealing structure of a toothed roller crusher. Background Art

[0002] In a double-toothed roller crusher, in order to achieve the adjustability of the center distance of the double-toothed rollers, an eccentric bearing sleeve adjustment structure is used to adjust the position of the toothed rollers. The following problems mainly exist during the adjustment process: Since the center of the toothed roller shaft and the center of the bearing seat are eccentrically arranged, when the spacing between the two toothed rollers needs to be adjusted, the eccentric bearing sleeve at the end of the toothed roller shaft needs to be rotated clockwise or counterclockwise. At this time, the toothed roller shaft will change position up, down, left, and right, and the position of the toothed roller shaft relative to the side end plate of the toothed roller crusher will change. The gap between the toothed roller shaft and the through hole on the side end plate of the toothed roller crusher is difficult to seal, which can easily cause the crushed material in the crushing chamber to fly out of the gap, causing environmental pollution. In order to solve the above problems, we propose an eccentric sealing structure for a toothed roller crusher to solve the above problems. Utility Model Content

[0003] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0004] An eccentric sealing structure of a toothed roller crusher, comprising:

[0005] A side end plate is arranged at the side end of the gear roll crusher, eccentric holes are arranged at intervals on the surface of the side end plate, and an extension plate is fixedly arranged on the outer wall of the side end plate below the eccentric holes;

[0006] A bearing seat is fixedly mounted on the top of the extension plate, an eccentric bearing sleeve is installed inside the bearing seat, a rotating shaft is fixedly mounted on the inner ring of the eccentric bearing sleeve, and the rotating shaft passes through the eccentric hole and extends to the inside of the gear roll crusher;

[0007] A sealing mechanism is used to prevent material from escaping from the eccentric hole. The sealing mechanism includes a material blocking cover arranged on the inner wall of the side end plate, a through hole is opened in the middle of the material blocking cover, a spherical protrusion is provided on the sliding sleeve of the side of the rotating shaft surface located inside the toothed roller crusher, one end of the spherical protrusion is embedded in the inside of the through hole, and a limiting ring is provided on the side of the rotating shaft surface located outside the toothed roller crusher, the position of the limiting ring is adjustable, a spring is connected between the limiting ring and the spherical protrusion, and the spring sleeve is arranged on the rotating shaft surface.

[0008] Furthermore, the side annular array of the material blocking cover is configured with mounting holes, and the mounting holes are in a strip shape.

[0009] Furthermore, a butyl rubber ring is provided on the edge of the spherical protrusion.

[0010] Further, the diameter of the butyl rubber ring is greater than the diameter of the through hole and less than the inner diameter of the material retaining cover.

[0011] Further, the limiting ring includes a mounting plate, and arc-shaped plates are hinged to both sides of the mounting plate. The two arc-shaped plates can form a ring, and the inner diameter of the ring is equal to the outer diameter of the rotating shaft. A U-shaped plate is fixedly provided at one end of the arc-shaped plate away from the mounting plate. A threaded rod is hinged inside one of the U-shaped plates, and a nut is threadedly connected to the surface of the threaded rod.

[0012] Further, anti-slip patterns are formed on the inner wall of the arc-shaped plate, and auxiliary plates are fixedly provided on both sides of the nut.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By setting the sealing mechanism, the cooperation between the material retaining cover and the spherical protrusion effectively prevents the broken materials from escaping through the eccentric hole, reduces environmental pollution. The adjustable design of the limiting ring enables the sealing state to be finely adjusted according to the actual situation, improving the reliability of the seal. The spring provides a constant pressure for the spherical protrusion to ensure that good sealing contact is always maintained during the change of the position of the toothed roller shaft. The sealing mechanism is compact in design, occupies a small space, and has high practicability, and is worthy of general application and promotion. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is another three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 3 is a schematic diagram of the sealing mechanism of the present utility model;

[0018] Figure 4 is a schematic diagram of the structure of the limiting ring in the drawing of the present utility model.

[0019] Reference Numerals: 1, side end plate; 101, eccentric hole; 2, extension plate; 3, bearing seat; 4, eccentric bearing sleeve; 5, rotating shaft; 6, sealing mechanism; 601, material retaining cover; 6011, through hole; 6012, mounting hole; 602, spherical protrusion; 603, limiting ring; 6031, mounting plate; 6032, arc-shaped plate; 6033, U-shaped plate; 6034, threaded rod; 6035, nut; 6036, auxiliary plate; 604, spring; 605, butyl rubber ring. Detailed Embodiments

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0021] The present application provides an eccentric sealing structure for a toothed roller crusher, which is mainly used to solve the problem that the gap between the toothed roller shaft and the through hole on the side end plate of the toothed roller crusher in the prior art is difficult to seal, which easily causes the crushed materials in the crushing chamber to fly out of the gap and cause environmental pollution, and provides the following technical solutions. Figure 1-Figure 4 Make a detailed description:

[0022] An eccentric sealing structure of a toothed roller crusher, comprising:

[0023] The side end plate 1 is arranged at the side end of the gear roll crusher, and eccentric holes 101 are arranged at intervals on the surface of the side end plate 1. An extension plate 2 is fixedly arranged on the outer wall of the side end plate 1 below the eccentric holes 101;

[0024] The bearing seat 3 is fixed on the top of the extension plate 2. An eccentric bearing sleeve 4 is installed inside the bearing seat 3. A rotating shaft 5 is fixed on the inner ring of the eccentric bearing sleeve 4. The rotating shaft 5 passes through the eccentric hole 101 and extends to the inside of the gear roller crusher.

[0025] The sealing mechanism 6 is used to prevent the material from escaping from the eccentric hole 101. The sealing mechanism 6 includes a material blocking cover 601 arranged on the inner wall of the side end plate 1. A through hole 6011 is opened in the middle of the material blocking cover 601. A spherical protrusion 602 is slidingly sleeved on the side of the surface of the rotating shaft 5 located inside the toothed roller crusher. One end of the spherical protrusion 602 is embedded in the inside of the through hole 6011. A limiting ring 603 is arranged on the side of the surface of the rotating shaft 5 located outside the toothed roller crusher. The position of the limiting ring 603 is adjustable. A spring 604 is connected between the limiting ring 603 and the spherical protrusion 602. The spring 604 is sleeved on the surface of the rotating shaft 5.

[0026] The eccentric seal structure principle of the toothed roller crusher is as follows:

[0027] When the operator adjusts the spacing between the tooth rollers according to the crushing requirements, the eccentric bearing sleeve 4 can be rotated to adjust the center distance between the double tooth rollers. The rotation of the eccentric bearing sleeve 4 causes the rotating shaft 5 to change its position up and down and left and right. During the position adjustment process of the rotating shaft 5, the spring 604 provides appropriate pressure for the spherical protrusion 602, so that the spherical protrusion 602 can always block the through hole 6011, effectively preventing the crushed material from escaping from the eccentric hole 101 and reducing environmental pollution. The adjustable design of the limit ring 603 allows the preload force of the spring 604 to be changed, thereby adjusting the pressure of the spherical protrusion 602 on the through hole 6011 of the material blocking cover 601, optimizing the sealing effect, and improving the reliability of the seal.

[0028] It should be noted that the spring 604 is designed in such a way that it will not move against the wall of the eccentric hole 101 during the adjustment of the gear roller spacing.

[0029] like Figure 3As shown, in some embodiments, mounting holes 6012 are formed in an annular array on the side of the material baffle 601. The mounting holes 6012 are strip-shaped. More specifically, the design of the strip-shaped mounting holes 6012 allows the material baffle 601 to be quickly positioned and installed on the side end plate 1. Since the strip-shaped holes are relatively long, bolts or fasteners can be easily passed through the hole slots, which speeds up the assembly process. When fine position adjustment of the material baffle 601 is required, the strip-shaped holes provide sufficient space for fine adjustment to ensure accurate sealing contact between the material baffle 601 and the spherical protrusion 602 of the rotating shaft 5.

[0030] As Figure 3 shown, in some embodiments, a butyl rubber ring 605 is provided at the edge of the spherical protrusion 602. More specifically, as a high-quality sealing material, the butyl rubber ring 605 can effectively prevent broken materials and dust from escaping through the gap between the spherical protrusion 602 and the material baffle 601 due to its good elasticity and small compression set. At the same time, the butyl rubber ring 605 has excellent wear resistance and can maintain a stable sealing effect during long-term use, reducing wear.

[0031] As Figure 3 shown, in some embodiments, the diameter of the butyl rubber ring 605 is larger than the diameter of the through hole 6011 and smaller than the inner diameter of the material baffle 601. More specifically, since the diameter of the rubber ring is smaller than the inner diameter of the material baffle 601, the rubber ring will not directly contact the inner wall of the material baffle 601 when moving on the rotating shaft 5, thus reducing friction and wear and prolonging the service life of the rubber ring.

[0032] As Figure 4 shown, in some embodiments, the limiting ring 603 includes a mounting plate 6031. Arc-shaped plates 6032 are hinged on both sides of the mounting plate 6031. The two arc-shaped plates 6032 can form a ring, and the inner diameter of the ring is equal to the outer diameter of the rotating shaft 5. A U-shaped plate 6033 is fixedly provided at the end of the arc-shaped plate 6032 away from the mounting plate 6031. A threaded rod 6034 is hinged inside one of the U-shaped plates 6033, and a nut 6035 is threadedly connected to the surface of the threaded rod 6034. More specifically, by engaging the two arc-shaped plates 6032 with each other, inserting the threaded rod 6034 into the U-shaped plate 6033, and rotating the nut 6035 to make it抵触 with the U-shaped plate 6033, the limiting ring 603 can be locked at a specific position on the rotating shaft 5.

[0033] As Figure 4As shown, in some embodiments, the inner wall of the arc plate 6032 is constructed with anti-slip grooves, and auxiliary plates 6036 are fixed on both sides of the nut 6035. More specifically, the anti-slip grooves on the inner wall of the arc plate 6032 increase the friction when in contact with the rotating shaft 5, preventing the limit ring 603 from sliding on the rotating shaft 5, thereby ensuring the stability of the sealing mechanism 6 during operation. The design of the auxiliary plate 6036 allows the staff to have a firm grip when turning the nut 6035, and can more easily apply force, especially when the nut 6035 requires a large force to turn, the auxiliary plate 6036 provides additional assistance.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An eccentric sealing structure of a toothed roller crusher, characterized in that: Including: A side end plate (1) is arranged at the side end of the toothed roll crusher. Eccentric holes (101) are spaced on the surface of the side end plate (1), and an extension plate (2) is fixedly arranged on the outer wall of the side end plate (1) below the eccentric holes (101). A bearing seat (3) is fixedly arranged on the top of the extension plate (2). An eccentric bearing sleeve (4) is installed inside the bearing seat (3). A rotating shaft (5) is fixedly arranged on the inner ring of the eccentric bearing sleeve (4). The rotating shaft (5) penetrates through the eccentric holes (101) and extends into the interior of the toothed roll crusher. A sealing mechanism (6) is used to prevent materials from escaping from the eccentric holes (101). The sealing mechanism (6) includes a material blocking cover (601) arranged on the inner side wall of the side end plate (1). A through hole (6011) is opened in the middle of the material blocking cover (601). A spherical protrusion (602) is slidably sleeved on one side of the surface of the rotating shaft (5) inside the toothed roll crusher. One end of the spherical protrusion (602) is embedded in the through hole (6011). A limiting ring (603) is arranged on one side of the surface of the rotating shaft (5) outside the toothed roll crusher. The position of the limiting ring (603) is adjustable. A spring (604) is connected between the limiting ring (603) and the spherical protrusion (602). The spring (604) is sleeved on the surface of the rotating shaft (5).

2. The eccentric sealing structure of a toothed roller crusher according to claim 1, characterized in that: Mounting holes (6012) are annularly arrayed on the side of the material blocking cover (601). The mounting holes (6012) are strip-shaped.

3. The eccentric sealing structure of a toothed roller crusher according to claim 1, characterized in that: A butyl rubber ring (605) is arranged on the edge of the spherical protrusion (602).

4. The eccentric sealing structure of a toothed roller crusher according to claim 3, characterized in that: The diameter of the butyl rubber ring (605) is larger than the diameter of the through hole (6011) and smaller than the inner diameter of the material blocking cover (601).

5. The eccentric sealing structure of a toothed roller crusher according to claim 1, characterized in that: The limiting ring (603) includes a mounting plate (6031). Arc-shaped plates (6032) are hinged on both sides of the mounting plate (6031). The two arc-shaped plates (6032) can form a ring, and the inner diameter of the ring is equal to the outer diameter of the rotating shaft (5). A U-shaped plate (6033) is fixedly arranged at the end of the arc-shaped plate (6032) far away from the mounting plate (6031). A threaded rod (6034) is hinged inside one of the U-shaped plates (6033). A nut (6035) is threadedly connected to the surface of the threaded rod (6034).

6. The eccentric sealing structure of a toothed roller crusher according to claim 5, characterized in that: Anti-slip lines are formed on the inner wall of the arc-shaped plate (6032). Auxiliary plates (6036) are fixedly arranged on both sides of the nut (6035).

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