Shield for transmission shaft of vibrating screen

Abstract

The utility model discloses a shield for a transmission shaft of a vibrating screen, relates to the technical field of vibrating screens, and aims to solve the problems that a circle of protective structure is arranged outside the transmission shaft on the conventional vibrating screen to prevent the transmission shaft from working due to the fact that an external object is clamped on the transmission shaft, but the conventional protective structure is generally inconvenient to install with the transmission shaft. The transmission shaft comprises a transmission shaft body and eccentric wheels, and the eccentric wheels are fixedly installed at the two ends of the transmission shaft body. The transmission shaft further comprises a left cover plate arranged on the left side of the transmission shaft body, a right cover plate is arranged on the right side of the transmission shaft body, the left cover plate and the right cover plate are movably connected in a clamped mode, and the right cover plate and the left cover plate are closed to wrap the transmission shaft body. And the upper protective cover is arranged at the upper end of the eccentric wheel, the lower protective cover is arranged at the lower end of the eccentric wheel, and the lower protective cover and the upper protective cover are closed to wrap the eccentric wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a vibrating screen transmission shaft guard. Background Art

[0002] The vibrating screen works by using the reciprocating vibration generated by the vibrator excitation. The upper rotating weight of the vibrator causes the screen surface to produce a plane gyration vibration, while the lower rotating weight causes the screen surface to produce a conical gyration vibration. The combined effect causes the screen surface to produce a complex gyration vibration. Its vibration trajectory is a complex space curve. The curve is projected as a circle on the horizontal plane and an ellipse on the vertical plane. The amplitude can be changed by adjusting the exciting force of the upper and lower rotating weights. And adjusting the spatial phase angle of the upper and lower weights can change the curve shape of the screen surface motion trajectory and change the motion trajectory of the material on the screen surface.

[0003] Usually, a protective structure is set on the outside of the drive shaft on the vibrating screen to prevent external objects from getting stuck on the drive shaft and causing the drive shaft to stop working. However, the existing protective structure is usually not convenient to install with the drive shaft, and it is difficult to assemble and disassemble. Therefore, we propose a vibrating screen drive shaft guard to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a vibrating screen drive shaft guard to solve the problem proposed in the above background technology that a circle of protective structure is usually set on the outside of the drive shaft on the vibrating screen to prevent external objects from getting stuck on the drive shaft and causing the drive shaft to fail to work, but the existing protective structure is usually not convenient for installation with the drive shaft, and it is difficult to assemble and disassemble.

[0005] To achieve the above object, the utility model provides the following technical solutions: a vibrating screen transmission shaft shield, comprising a transmission shaft body and an eccentric wheel, wherein the eccentric wheel is fixedly mounted at both ends of the transmission shaft body;

[0006] Also includes:

[0007] A left cover plate is arranged on the left side of the transmission shaft body, and a right cover plate is arranged on the right side of the transmission shaft body. The left cover plate and the right cover plate are movably engaged with each other, and the right cover plate and the left cover plate are closed to wrap the transmission shaft body;

[0008] An upper guard is arranged on the upper end of the eccentric wheel, a lower guard is arranged on the lower end of the eccentric wheel, and the lower guard and the upper guard are closed to wrap the eccentric wheel, the lower guard and the upper guard are connected by a connecting piece, and the lower guard and the upper guard are opened and closed by the connecting piece, a second bearing is arranged at the outer center of the upper guard, and the second bearing is fixedly connected to the two ends of the transmission shaft body by clamping.

[0009] Preferably, both ends of the outer walls of the left cover plate and the right cover plate are provided with external threads, and a connecting ring is provided on the inner side of the upper protective cover, which clamps and connects the left cover plate and the right cover plate, and the connecting ring is connected to the interior of the upper protective cover and the lower protective cover, and the inner wall of the connecting ring is integrally formed with an internal thread, the internal thread is threadedly connected to the external thread, and the upper protective cover and the lower protective cover are threadedly connected to clamp and fix the left cover plate and the right cover plate.

[0010] Preferably, a heat dissipation hole is provided on the outer side of the lower shield, and the heat dissipation hole is communicated with the interior of the lower shield, and a filter is provided on the surface of the heat dissipation hole.

[0011] Preferably, the inner walls of the left cover plate and the right cover plate are both provided with grooves, and the positions of the grooves of the left cover plate and the right cover plate are in opposite directions. The inner walls of the left cover plate and the right cover plate are both provided with clamping blocks, and the positions of the clamping blocks of the left cover plate and the right cover plate are in opposite directions, and when the left cover plate and the right cover plate are closed, the clamping blocks are engaged and connected with the grooves.

[0012] Preferably, first bearings are symmetrically arranged at two ends of the outside of the transmission shaft body, and the first bearings are attached to two ends of the inner walls of the left cover plate and the right cover plate.

[0013] Preferably, a threaded rod is provided at the front end of the upper guard and the lower guard, and the threaded rod is divided into two and respectively fixed at the front end of the upper guard and the lower guard, and a locking ring is movably provided on the outside of the threaded rod, the locking ring is threadedly connected to the outside of the threaded rod, and the threaded rod is connected through the locking ring to fix the upper guard and the lower guard.

[0014] Preferably, limiting grooves are symmetrically arranged on the upper and lower sides of both ends of the transmission shaft body, and protrusions are symmetrically arranged on both sides inside the second bearing, and when the transmission shaft body is engaged in the inside of the second bearing, the limiting grooves and the protrusions are engaged and connected.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A detachable cover is provided on the outside of the transmission shaft body, and an openable and closable shield is provided on the outside of the eccentric wheel. After the cover covers the transmission shaft body, both sides of the cover are threadedly connected and fixed through the shield, so that the cover can be closed, and an openable and closable threaded rod is provided at the front end of the shield, and the threaded rod is respectively fixed to the front ends of the upper shield and the lower shield. When the upper shield and the lower shield are closed, the threaded rod is closed to form a complete structure, and the shield is closed and fixed by a locking ring, so that the shield and the cover can be quickly disassembled and installed.

[0017] 2. By arranging heat dissipation holes and filters on the outside of the shield, the heat generated by the eccentric shaft during rotation can be discharged from the inside of the shield, thereby preventing the eccentric shaft from overheating and affecting work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a disassembled diagram of the overall structure of the utility model;

[0019] Figure 2 This is a front view of the overall structure section of the utility model;

[0020] Figure 3 It is a side view of the shield structure of the utility model;

[0021] Figure 4 It is a side cross-sectional view of the shield structure of the utility model;

[0022] In the figure: 1. left cover; 2. external thread; 3. right cover; 4. upper shield; 5. lower shield; 6. connecting ring; 7. internal thread; 8. threaded rod; 9. first bearing; 10. locking ring; 11. connecting piece; 12. transmission shaft body; 13. eccentric wheel; 14. second bearing; 15. groove; 16. block; 17. heat dissipation hole; 18. filter; 19. limit groove; 20. bump. Implementation

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-4 , the utility model provides an embodiment: a vibrating screen transmission shaft shield, including a transmission shaft body 12 and an eccentric wheel 13, the eccentric wheel 13 is fixedly mounted on both ends of the transmission shaft body 12;

[0025] Also includes:

[0026] The left cover plate 1 is arranged on the left side of the transmission shaft body 12, and the right cover plate 3 is arranged on the right side of the transmission shaft body 12. The left cover plate 1 and the right cover plate 3 are movably engaged and connected, and the right cover plate 3 and the left cover plate 1 are closed to wrap the transmission shaft body 12;

[0027] An upper shield 4 is provided at the upper end of the eccentric wheel 13, a lower shield 5 is provided at the lower end of the eccentric wheel 13, and the lower shield 5 and the upper shield 4 are closed to wrap the eccentric wheel 13, the lower shield 5 and the upper shield 4 are connected by a connecting piece 11, and the lower shield 5 and the upper shield 4 are opened and closed by the connecting piece 11, a second bearing 14 is provided at the outer center of the upper shield 4, and the second bearing 14 is fixedly connected to the two ends of the transmission shaft body 12 by clamping.

[0028] A removable cover is provided on the outside of the transmission shaft body 12, and an openable and closable shield is provided on the outside of the eccentric wheel 13. After the cover covers the transmission shaft body 12, the two sides of the cover are threadedly connected and fixed through the shield, so that the cover can be closed, so that the shield and the cover can be quickly removed and installed.

[0029] See also Figure 1 , external threads 2 are provided at both ends of the outer walls of the left cover plate 1 and the right cover plate 3, and a connecting ring 6 is provided on the inner side of the upper shield 4, which clamps and connects the left cover plate 1 and the right cover plate 3, and the connecting ring 6 is communicated with the interior of the upper shield 4 and the lower shield 5, and the inner wall of the connecting ring 6 is integrally formed with an internal thread 7, which is threadedly connected to the external thread 2, and the upper shield 4 and the lower shield 5 are threadedly connected to clamp and fix the left cover plate 1 and the right cover plate 3, and the upper shield 4 and the lower shield 5 are fixed by the connecting ring 6.

[0030] See also Figure 3 A heat dissipation hole 17 is arranged on the outer side of the lower shield 5, and the heat dissipation hole 17 is communicated with the interior of the lower shield 5. A filter screen 18 is arranged on the surface of the heat dissipation hole 17 to prevent the high heat generated inside the shield from being difficult to discharge.

[0031] See also Figure 1-2 The inner walls of the left cover plate 1 and the right cover plate 3 are both provided with grooves 15, and the positions of the grooves 15 of the left cover plate 1 and the right cover plate 3 are in opposite directions. The inner walls of the left cover plate 1 and the right cover plate 3 are both provided with clamping blocks 16, and the positions of the clamping blocks 16 of the left cover plate 1 and the right cover plate 3 are in opposite directions. When the left cover plate 1 and the right cover plate 3 are closed, the clamping blocks 16 are engaged with the grooves 15, so as to limit the left cover plate 1 and the right cover plate 3 when they are closed.

[0032] See also Figure 2 The first bearings 9 are symmetrically arranged at both ends of the outside of the transmission shaft body 12, and the first bearings 9 are attached to the two ends of the inner walls of the left cover plate 1 and the right cover plate 3. The first bearings 9 support the transmission shaft body 12 when it is engaged inside the left cover plate 1 and the right cover plate 3.

[0033] See also Figure 3A threaded rod 8 is provided at the front end of the upper shield 4 and the lower shield 5, and the threaded rod 8 is divided into two and fixed at the front end of the upper shield 4 and the lower shield 5 respectively. A locking ring 10 is movably provided on the outside of the threaded rod 8. The locking ring 10 is threadedly connected to the outside of the threaded rod 8, and the threaded rod 8 is connected through the locking ring 10 to fix the upper shield 4 and the lower shield 5, and the upper shield 4 and the lower shield 5 are fixed through the locking ring 10.

[0034] See also Figure 3 Limiting grooves 19 are symmetrically arranged on the upper and lower sides of both ends of the transmission shaft body 12, and protrusions 20 are symmetrically arranged on both sides inside the second bearing 14. When the transmission shaft body 12 is engaged in the second bearing 14, the limiting grooves 19 and the protrusions 20 are engaged and connected to limit the transmission shaft body 12 and the second bearing 14.

[0035] Working principle: close the left cover plate 1 and the right cover plate 3, and seal the transmission shaft body 12 inside the cover plate, so that the external threads 2 on both sides form a complete thread shape, then close the upper and lower shields 4 and 5, and seal the eccentric wheel 13 inside the shield, so that the threaded rods 8 on the upper and lower sides are closed to form a complete thread shape, and then the shield is fixed by threading the locking ring 10 with the threaded rod 8.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A vibrating screen transmission shaft shield, comprising a transmission shaft body (12) and an eccentric wheel (13), wherein the eccentric wheel (13) is fixedly mounted at both ends of the transmission shaft body (12); Features: Also includes: A left cover plate (1) is arranged on the left side of the transmission shaft body (12); a right cover plate (3) is arranged on the right side of the transmission shaft body (12); the left cover plate (1) and the right cover plate (3) are movably engaged with each other, and the right cover plate (3) and the left cover plate (1) are closed to wrap the transmission shaft body (12); An upper guard (4) is provided at the upper end of an eccentric wheel (13), a lower guard (5) is provided at the lower end of the eccentric wheel (13), and the lower guard (5) and the upper guard (4) are closed to wrap the eccentric wheel (13), the lower guard (5) and the upper guard (4) are connected via a connecting piece (11), and the lower guard (5) and the upper guard (4) are opened and closed via the connecting piece (11), a second bearing (14) is provided at the outer center of the upper guard (4), and the second bearing (14) is fixedly connected to the two ends of the transmission shaft body (12) by snapping.

2. The vibrating screen drive shaft shield according to claim 1, characterized in that: Both ends of the outer walls of the left cover plate (1) and the right cover plate (3) are provided with external threads (2); the inner side of the upper shield (4) is provided with a connecting ring (6); the connecting ring (6) engages and connects the left cover plate (1) and the right cover plate (3); the connecting ring (6) is communicated with the interior of the upper shield (4) and the lower shield (5); the inner wall of the connecting ring (6) is integrally formed with an internal thread (7); the internal thread (7) is threadedly connected to the external thread (2); and the upper shield (4) and the lower shield (5) engage and fix the left cover plate (1) and the right cover plate (3) through threaded connection.

3. The vibrating screen drive shaft shield according to claim 1, characterized in that: A heat dissipation hole (17) is provided on the outer side of the lower shield (5), and the heat dissipation hole (17) is communicated with the interior of the lower shield (5), and a filter screen (18) is provided on the surface of the heat dissipation hole (17).

4. The vibrating screen drive shaft shield according to claim 1, characterized in that: The inner walls of the left cover plate (1) and the right cover plate (3) are both provided with grooves (15), and the positions of the grooves (15) of the left cover plate (1) and the right cover plate (3) are in opposite directions. The inner walls of the left cover plate (1) and the right cover plate (3) are both provided with clamping blocks (16), and the positions of the clamping blocks (16) of the left cover plate (1) and the right cover plate (3) are in opposite directions. When the left cover plate (1) and the right cover plate (3) are closed, the clamping blocks (16) are clamped and connected with the grooves (15).

5. The vibrating screen drive shaft shield according to claim 1, characterized in that: First bearings (9) are symmetrically arranged at two ends of the outside of the transmission shaft body (12), and the first bearings (9) are fitted to two ends of the inner walls of the left cover plate (1) and the right cover plate (3).

6. The vibrating screen drive shaft shield according to claim 1, characterized in that: The front ends of the upper shield (4) and the lower shield (5) are provided with a threaded rod (8), and the threaded rod (8) is divided into two parts and fixed to the front ends of the upper shield (4) and the lower shield (5), respectively. A locking ring (10) is movably provided on the outside of the threaded rod (8), and the locking ring (10) is threadedly connected to the outside of the threaded rod (8), and the threaded rod (8) is connected to the locking ring (10) so that the upper shield (4) and the lower shield (5) are fixed.

7. The vibrating screen drive shaft shield according to claim 1, characterized in that: Limiting grooves (19) are symmetrically arranged on the upper and lower sides of both ends of the transmission shaft body (12), and protrusions (20) are symmetrically arranged on the inner sides of the second bearing (14), and when the transmission shaft body (12) is engaged inside the second bearing (14), the limiting grooves (19) and the protrusions (20) are engaged and connected.

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