CN105173446B - A kind of arch breaking apparatus - Google Patents

Abstract

The invention provides an arch breaking device, comprising: a first rotating unit and a second rotating unit; the first rotating unit includes a first driving mechanism and a first rotating mechanism, and the first driving mechanism drives the first rotating mechanism to rotate in a horizontal plane The second rotating unit includes a second driving mechanism, a second driving mechanism fixing device and a rotating shaft, the rotating shaft is provided with a plurality of knives along the axial direction, and the second driving mechanism drives the knives of the rotating shaft to rotate in a vertical plane; and, the second The second driving mechanism fixing device is fixedly connected with the first rotating mechanism. The invention can effectively prevent materials from arching in the silo, the arch breaking height is large, the arch breaking area is large, and the arch breaking device is small in volume.

Description

an arch breaking device

technical field

The invention relates to the technical field of bunker blockage, in particular to an arch breaking device.

Background technique

At present, the use of raw coal, grain, petrochemical, fertilizer, ore powder, and sludge material bins is very popular. However, in the process of discharging from the silo, material arching is prone to occur, which seriously affects the normal operation of the equipment. For example, the activated sludge produced in sewage treatment is dehydrated and dried, and then transported to the silo. The sludge in the silo is easy to harden and bridge in the silo, affecting the normal discharge. In the same way, arching problems often occur in fields such as coal, grain, ore powder.

Therefore, for technicians, proposing an effective arch-breaking device is an urgent technical problem to be solved.

Contents of the invention

In view of this, the present invention aims to propose an arch breaking device, based on which the arch breaking device can effectively solve the problem of material arching.

An arch breaking device according to the present invention includes a first rotating unit and a second rotating unit; the first rotating unit includes a first driving mechanism and a first rotating mechanism, and the first driving mechanism drives the first rotating mechanism on a horizontal plane Inner rotation; the second rotation unit includes a second drive mechanism, a second drive mechanism fixing device and a rotation shaft, the rotation shaft is provided with a plurality of knives along the axial direction, and the second drive mechanism drives the rotation shaft The tool rotates in a vertical plane; and, the second driving mechanism fixing device is fixedly connected with the first rotating mechanism.

Further, the above-mentioned arch breaking device further includes a fixing part; the first rotating mechanism is arranged in a cavity between the fixing part and the second driving mechanism fixing device; and, the fixing part and the The second drive mechanism fixing device is also sealed by the first sealing device.

Further, in the above-mentioned arch breaking device, a second sealing device is further provided between the second driving mechanism fixing device and the rotating shaft.

Further, in the above-mentioned arch breaking device, the first drive mechanism includes: a first power device and a gear shaft; the first power device is connected to the gear shaft to drive the gear shaft to rotate; the gear shaft and The first rotating mechanism is connected through gear transmission, and driven by the gear shaft, the first rotating mechanism rotates in a horizontal plane.

Further, in the above-mentioned arch breaking device, the first rotating mechanism includes a slewing bearing; the outer ring of the slewing bearing is connected to the gear shaft; the inner ring of the slewing bearing is connected to the fixed part; the second The driving mechanism fixing device is fixed on the outer ring of the slewing bearing.

Further, in the above-mentioned arch breaking device, the second drive mechanism is a second power device; the output shaft of the second power device is connected to the rotating shaft through a second coupling.

Further, in the above-mentioned arch breaking device, the fixing part includes a bottom plate, and a first side plate connected to the bottom plate; the second driving mechanism fixing device includes a cover plate and a second side plate fixedly connected; The first sealing device is arranged between the first side plate and the second side plate.

Further, in the above-mentioned arch breaking device,

The first sealing device includes a slide plate and a plurality of sealing rings matched with the slide plate; wherein

The slide plate is embedded in the second side plate, and each of the sealing rings is respectively embedded in the first side plate; or, the slide plate is embedded in the first side plate, and each seal ring The rings are respectively inlaid on the second side plates.

Compared with the prior art, the beneficial effect of the present invention is that: the arch breaking device of the present invention is arranged at the bottom of the storage bin, and by setting two rotating units, the arch breaking tool can rotate in the horizontal plane while having its own The rotation in the vertical plane effectively prevents the materials from arching in the silo, and the arch breaking height and arch breaking area are large; in addition, the arch breaking device of the present invention is small in size and convenient for construction.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

Fig. 1 is a schematic structural view of a preferred embodiment of an arch breaking device according to the present invention;

Fig. 2 is a schematic structural view of the first sealing device in an embodiment of the arch breaking device according to the present invention;

Fig. 3 is a schematic structural view of the second sealing device in the embodiment of the arch breaking device according to the present invention.

In the picture:

1 first power unit

2 gear shafts

3 Second motor

4 First coupling

5 Motor base

6 slewing bearing

7 fixed part

71 Bottom plate

72 First side panel

8 Second drive unit mount

81 Cover

82 Second side panel

9 First seal

91 skateboard

92 sealing ring

11 axis of rotation

12 Second seal

13 Second coupling

14 Second power unit

15 Silo

31 Gland

32 second skateboard

33 skeleton oil seal

34 Self-lubricating bearings

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

Embodiments of the arch breaking device of the present invention will be described in detail below with reference to FIGS. 1 to 3 .

The embodiment of the arch breaking device of the present invention includes a first rotation unit and a second rotation unit; the first rotation unit includes a first drive mechanism and a first rotation mechanism, and the first drive mechanism drives the first rotation mechanism to rotate in a horizontal plane; the second rotation The unit includes a second driving mechanism, a second driving mechanism fixing device 8 and a rotating shaft 11, the rotating shaft 11 is provided with a plurality of knives along the axial direction, and the second driving mechanism drives the knives of the rotating shaft 11 to rotate in a vertical plane; and, the second The second driving mechanism fixing device 8 is fixedly connected with the first rotating mechanism, and the rotating shaft 11 rotates in the vertical plane while rotating in the horizontal plane.

In the specific implementation, the arch breaking device is arranged at the bottom of the silo 15, and by setting two rotating units, the knife can rotate in the vertical plane while participating in the rotation in the horizontal plane, effectively preventing the material from being trapped in the silo. The arch is formed, and the arch breaking height is large, the arch breaking area is large, and the arch breaking device is small in size.

Further, since the arch breaking device is installed at the bottom of the silo 15, no matter whether it is the rotation in the horizontal plane or the rotation in the vertical plane, it is all realized inside the silo. Therefore, the requirements for the sealing performance of the arch breaking device are very strict . Based on this, this embodiment is also provided with two sealing devices:

First, the first sealing device

Its purpose is to seal the first rotary mechanism. For this reason, the arch breaking device also includes a fixing part 7 and a second driving mechanism fixing device 8; the first rotating mechanism is arranged in the cavity between the fixing part 7 and the second driving mechanism fixing device 8; and the first sealing device 9 It is arranged between the fixing part 7 and the second driving mechanism fixing device 8 .

Second, the second sealing device

It is arranged between the second driving mechanism fixing device 8 and the rotating shaft 11 .

Next, the first rotating unit, the second rotating unit, and the first sealing device 9 and the second sealing device 12 of a preferred embodiment of the present invention will be described in detail.

In one embodiment, the first rotation unit includes a first driving mechanism and a first rotation mechanism. The first driving mechanism includes: a first motor, a first speed reducer and a gear shaft 2; the first motor is connected with the gear shaft 2 through the first speed reducer 1, and drives the gear shaft 2 to rotate; the gear shaft 2 and the first rotating mechanism pass through gears Transmission connection, the first rotating mechanism is driven by the gear shaft 2 to rotate in the horizontal plane.

It should be noted that, in this embodiment, the first motor and the first speed reducer are two independent structures, which together form the first power device 1 . For those skilled in the art, it is a conventional technical means in the field to be provided with a motor with a speed reducer. The present invention does not limit the structure of the first power device, which can be realized by an independent motor and a reducer as shown in this embodiment, or by an integrated structure.

More specifically, the first rotating mechanism includes a slewing bearing 6; the outer ring of the slewing bearing 6 is connected to the gear shaft 2; the inner ring of the slewing bearing 6 is connected to the fixed part 7, and the outer ring rotates around the inner ring; the second driving mechanism fixing device 8 is fixed on the outer ring of the slewing bearing; and the second driving mechanism fixing device 8 is also fixed on the outer ring of the slewing bearing.

Preferably, the inner ring of the slewing bearing 6 is fixed on the fixed part 7 through bolt connection; the protection device 10 is fixed on the outer ring of the slewing bearing 6 through bolt connection; the second driving mechanism fixing device 8 is fixed on the slewing bearing 6 through bolt connection. outer circle.

As mentioned above, the second rotating unit includes the second driving mechanism and the second driving mechanism fixing device 8 and the rotating shaft 11 . The second drive mechanism includes a second motor 3 and a second reducer 14 ; the second motor 3 is arranged on the motor base 5 . The output shafts at both ends of the second reducer 14 are connected to the rotating shaft 11 through the second coupling 13 . Since the rotating shaft 11 is equipped with a cutter, when the rotating shaft 11 participates in the rotation of the first rotating unit in the horizontal plane, the cutter on it also rotates in the vertical plane, thereby breaking the material, such as sludge, etc. .

That is to say, the second motor 3 is connected to the second reducer 14 through the first coupling 4, the second reducer 14 has a bidirectional output shaft, and one end of the bidirectional output shaft is connected to the rotating shaft 11 through the second coupling 13 , the other end is also connected to the rotating shaft 11 through the second coupling 13, wherein the second motor 3 is fixed on the motor base 5, and the motor base 5 is fixed on the fixed part 7.

As mentioned above, in this embodiment, the second motor 3 and the second reducer 14 are two independent structures, which together form the second power device. For those skilled in the art, it is a conventional technical means in the field to be provided with a motor with a speed reducer. The present invention does not limit the structure of the second power device. As shown in this embodiment, the power output can be realized by an independent motor and a reducer, or it can be realized by an integrated structure.

Next, referring to FIG. 2 , the structure of the first sealing device 9 will be described in detail.

First, in order to describe the structure of the first sealing device 9 , it is necessary to further describe the structures of the fixing part 7 and the second driving mechanism fixing device 8 . In a preferred embodiment, the fixing part 7 includes a bottom plate 71, and a first side plate 72 connected to the bottom plate 71; the second driving mechanism fixing device 8 includes a cover plate 81 and a second side plate 82 fixedly connected; A sealing device 9 is disposed between the first side plate 72 and the second side plate 82 .

In a preferred embodiment, the first sealing device 9 includes a sliding plate 91 and a plurality of sealing rings 92 cooperating with the sliding plate 91 . Sliding plate 91 effect is in order to reduce friction. As for the distribution of the sliding plate 91 and the sealing ring 92, this embodiment does not make a limitation. For example, the sliding plate 91 can be embedded in the second side plate 82 , and each sealing ring can be embedded in the first side plate 72 respectively. But not limited thereto, the sliding plate 91 can be embedded in the first side plate 72 , and each sealing ring 92 can be embedded in the second side plate 82 respectively. As long as the sealing can be realized through the cooperation of the sliding plate 91 and the sealing ring 92 .

Further, in the first sealing device 9 , the sliding plate 91 may be a polytetrafluoroethylene plate, and the sealing ring may be an aramid sealing ring, or a graphite packing sealing ring. The number of aramid sealing rings and graphite packing sealing rings is not limited.

In order to optimize the sealing effect, the gap between the sliding plate 91 made of polytetrafluoroethylene and the first side plate 72 of the fixing part 7 is only 0.5-1 mm. At the same time, in order to prevent the first sealing device 9 from being worn out, a lathe is used for processing here to ensure assembly accuracy.

Referring to Fig. 3, the structure of the second sealing device 12 will be described below. The second sealing device 12 is composed of four parts: a gland 31 , a second sliding plate (for example, a polytetrafluoroethylene plate) 32 , a skeleton oil seal 33 , and a self-lubricating bearing 34 . The gap between the gland 31 and the rotating shaft 11 is between 0.5-1mm to isolate most of the dry sludge particles, and the gap between the second sliding plate 32 and the rotating shaft 11 is between 0.1-0.5mm to further isolate the dry material particles, the skeleton The oil seal 33 is a high-temperature-resistant oil seal with elasticity, and fits with the rotating shaft 11 without gaps to ensure that sludge particles cannot enter. At the same time, a self-lubricating bearing 34 is installed at the rear end to ensure that the rotating shaft 11 rotates smoothly and has a good lubricating effect. In order to prevent the second sealing device 12 from being worn out, it is particularly important to ensure the concentricity of the rotating shafts 11 at both ends. The 10 holes of the protective device are welded first and then processed by a boring machine, which has reached the assembly precision requirements.

It can be understood that although the arch-breaking device is located at the bottom of the silo, the sealing of the first sealing device 9 and the second sealing device 12 can well ensure that the mechanical parts of the arch-breaking will not enter dust, so that the mechanical parts can be used continuously. The arch is broken, the sealing effect is obvious, the service life is long, the service life of the seal is greatly extended, and the replacement frequency is reduced. For example, if the arch breaking device is installed at the bottom of the sludge drying silo, it can effectively break the arch of the sludge formed by the arch, and minimize the problems of efficiency reduction or shutdown caused by poor sealing.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (8)

1. An arch breaking device, characterized in that it comprises: a first rotation unit and a second rotation unit; The first rotating unit includes a first driving mechanism and a first rotating mechanism, and the first driving mechanism drives the first rotating mechanism to rotate in a horizontal plane; The second rotating unit includes a second driving mechanism, a second driving mechanism fixing device (8) and a rotating shaft (11), and the rotating shaft (11) is provided with a plurality of knives along the axial direction, and the second driving mechanism The tool driving said rotating shaft (11) rotates in a vertical plane; Moreover, the second driving mechanism fixing device (8) is fixedly connected with the first rotating mechanism. 2. The arch breaking device according to claim 1, characterized in that, Also includes a fixed part (7); The first rotating mechanism is arranged in a cavity between the fixing part (7) and the second driving mechanism fixing device (8); In addition, the first sealing device (9) is also used to seal between the fixing part (7) and the second driving mechanism fixing device (8). 3. The arch breaking device according to claim 1 or 2, characterized in that, A second sealing device (12) is also arranged between the second driving mechanism fixing device (8) and the rotating shaft (11). 4. The arch breaking device according to claim 3, characterized in that, The first drive mechanism includes: a first power device (1) and a gear shaft (2); the first power device (1) is connected to the gear shaft (2) to drive the gear shaft (2) to rotate ; The gear shaft (2) is connected to the first rotating mechanism through gear transmission, and the first rotating mechanism rotates in a horizontal plane driven by the gear shaft (2). 5. The arch breaking device according to claim 4, characterized in that, The first rotating mechanism includes a slewing bearing (6); The outer ring of the slewing bearing (6) is in transmission connection with the gear shaft (2); The inner ring of the slewing bearing (6) is connected to the fixed part (7); The second driving mechanism fixing device (8) is fixed on the outer ring of the slewing bearing (6). 6. The arch breaking device according to claim 5, characterized in that, The second driving mechanism is a second power device; The output shaft of the second power device is connected with the rotating shaft (11) through a second coupling (13). 7. The arch breaking device according to claim 6, characterized in that, The fixing part (7) includes a bottom plate (71), and a first side plate (72) connected to the bottom plate (71); The second drive mechanism fixing device (8) includes a fixedly connected cover plate (81) and a second side plate (82); The first sealing device (9) is arranged between the first side plate (72) and the second side plate (82). 8. The arch breaking device according to claim 7, characterized in that: The first sealing device (9) includes a slide plate (91) and a plurality of sealing rings (92) matched with the slide plate (91); wherein The sliding plate (91) is embedded in the second side plate (82), and each of the sealing rings (92) is respectively embedded in the first side plate (72); or, The sliding plate (91) is embedded in the first side plate (72), and each of the sealing rings (92) is respectively embedded in the second side plate (82).