Corner box device with shaft protection function for dust gas transmission

Abstract

The utility model discloses a dust gas transmission corner box device with a shaft protection function, which belongs to the technical field of dust conveying devices, and comprises a box body, two flange connecting pipes and a shaft protection device, the two bearing seats are symmetrically arranged and installed on the two opposite sides of the box body, a bearing body is installed at one end of each bearing seat, and the other end of each bearing seat extends into the box body and is provided with a shaft check ring; a main shaft; the bearing seat, the bearing body, the main shaft and the chain wheel are installed in the box body to form a basic corner box structure, the rotary oil seal mechanism is installed between the main shaft and the bearing seat to form a plurality of protection structures, the sealing performance of the corner box is guaranteed, the air pipe assembly connected to the bearing seat blows air flow into the box body from the rotary oil seal mechanism, and the sealing performance of the corner box is improved. By means of the structure, powder particles between the rotary oil seal mechanism and the main shaft can be blown, abrasion of a shaft neck of the main shaft is reduced, the main shaft and the bearing body cannot be abraded, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dust conveying device technical field especially relates to a corner box device for dust gas transmission with shaft protection function. BACKGROUND

[0002] Pipe chain conveyor is a kind of continuous conveying equipment for conveying powdery, small granular and small block etc. bulk materials, which can be horizontally, obliquely and vertically combined to convey, and the corner box pipe chain conveyor is an important device.

[0003] At present, although the corner box adopts four fluorine sleeve, TC skeleton oil seal and packing triple seal for protection, due to the limitation of sealing, dust particles can leak to cause shaft wear and bearing damage. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a corner box device for dust gas transmission with shaft protection function.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a corner box device for dust gas transmission with shaft protection function, comprising:

[0006] Box, which is provided with two flange connecting pipes;

[0007] Two bearing seats are symmetrically arranged and installed on opposite sides of the box, one end of the bearing seat is provided with a bearing body, and the other end of the bearing seat extends into the box and is provided with a shaft retaining ring;

[0008] Main shaft, both ends of which are connected to two bearing bodies respectively;

[0009] Two groups of rotary oil seal mechanisms are sleeved on the main shaft, and two groups of rotary oil seal mechanisms are connected to two bearing seats respectively;

[0010] Air pipe assembly is connected to two bearing seats respectively, and airflow in the air pipe assembly enters the box through bearing seat and rotary oil seal mechanism;

[0011] Two bearing housings are installed on the box, and two bearing housings cover two bearing seats respectively;

[0012] Sprocket is arranged in the box, and the sprocket is connected to the main shaft.

[0013] Further description of the above technical scheme:

[0014] Air inlet hole is arranged on the bearing seat, and air inlet interface on the air pipe assembly is screwed in the air inlet hole.

[0015] As a further description of the above technical solutions:

[0016] The rotating oil seal mechanism comprises a tetrafluoroethylene sleeve, a rotating oil seal body, a packing body and a packing gland, the tetrafluoroethylene sleeve, the rotating oil seal body, the packing body and the packing gland are all sleeved on the main shaft, and the tetrafluoroethylene sleeve, the rotating oil seal body, the packing body and the packing gland are all connected to the inner wall of the bearing seat, the packing gland is connected to the bearing seat through bolts, and the packing gland extrudes the packing body, the tetrafluoroethylene sleeve is located between the rotating oil seal body and the shaft retaining ring, an annular airflow groove is formed on the bearing seat, the annular airflow groove is communicated with the air inlet hole, and the annular airflow groove is communicated with the inside of the box through the tetrafluoroethylene sleeve.

[0017] As a further description of the above technical solutions:

[0018] Two air inlets are formed on the end face of the tetrafluoroethylene sleeve, the air inlets are communicated with the annular airflow groove, and a spiral flow channel is formed on the inner wall of the tetrafluoroethylene sleeve, the spiral flow channel extends to the opposite end faces of the tetrafluoroethylene sleeve, and the spiral flow channel is communicated with the air inlets.

[0019] As a further description of the above technical solutions:

[0020] An annular groove is formed on the outer wall of the tetrafluoroethylene sleeve, an O-shaped ring is clamped in the annular groove, and the O-shaped ring abuts against the inner wall of the bearing seat.

[0021] As a further description of the above technical solutions:

[0022] A plurality of transparent and / or translucent observation plates are connected to the box.

[0023] As described above, due to the adoption of the above technical solutions, the beneficial effects of the present application are:

[0024] 1、In the utility model, the bearing seat, the bearing body, the main shaft and the chain wheel are installed in the box to form the corner box structure, the rotating oil seal mechanism is installed between the main shaft and the bearing seat to form the multiple protective structures, the sealing property of the corner box is guaranteed, the air pipe assembly connected to the bearing seat blows the airflow into the box from the rotating oil seal mechanism, the powder particles between the rotating oil seal mechanism and the main shaft can be blown, the wear of the journal of the main shaft is reduced, the main shaft and the bearing body are not worn, and the service life of the device is improved.

[0025] 2. The utility model discloses, through the tetrafluoro sleeve as first heavy protection, the rotary oil seal body as second heavy protection, the disc body and the disc root gland as third heavy protection, guarantee the sealing property of the main shaft installation, in addition, the rotary oil seal body can rotate along with the main shaft, reduce the wear and tear of the journal of main shaft, and further protected the main shaft.

[0026] 3. The utility model discloses, through the airflow in trachea subassembly from the air inlet hole into annular airflow groove, and then the airflow from the air inlet into spiral flow channel, make the gas focus through spiral flow channel and blow to one direction of main shaft, and form the blowing action relative to the rotation of main shaft, and the powder particle all around can be blown, make the main shaft and bearing body not be abraded, improve the service life of device. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is overall structure diagram of corner box device for dust gas transmission with shaft protection function Figure 1 .

[0028] Figure 2 It is overall structure diagram of corner box device for dust gas transmission with shaft protection function Figure 2 .

[0029] Figure 3 It is explosion view of corner box device for dust gas transmission with shaft protection function.

[0030] Figure 4 It is section of corner box device for dust gas transmission with shaft protection function Figure 1 .

[0031] Figure 5 It is section of corner box device for dust gas transmission with shaft protection function Figure 2 .

[0032] Figure 6 It is Figure 5 Partial close-up view of part A.

[0033] Figure 7 It is overall structure diagram of tetrafluoro sleeve in corner box device for dust gas transmission with shaft protection function.

[0034] Figure 8 It is partial structure diagram of bearing seat in corner box device for dust gas transmission with shaft protection function.

[0035] LEGEND:

[0036] 1, box; 2, flange connecting pipe; 3, bearing seat; 4, bearing body; 5, shaft check ring; 6, main shaft; 7, rotary oil seal mechanism; 71, four fluorine sleeve; 72, rotary oil seal body; 73, packing body; 74, packing gland; 8, air pipe assembly; 9, bearing cover; 10, chain wheel; 11, air inlet; 12, annular air flow groove; 13, air inlet; 14, spiral flow channel; 15, annular groove; 16, O ring; 17, observation plate. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0038] Please refer to Figures 1-8 The utility model provides a kind of technical scheme: a dust gas transmission corner box device with shaft protection function, comprising:

[0039] Box 1, which is provided with two flange connecting pipes 2;

[0040] Two bearing seats 3 are symmetrically arranged and installed on opposite sides of the box 1, one end of the bearing seat 3 is provided with a bearing body 4, and the other end of the bearing seat 3 extends into the box 1 and is provided with a shaft check ring 5;

[0041] The main shaft 6 is connected to the two bearing bodies 4 at both ends respectively;

[0042] Two groups of rotary oil seal mechanisms 7 are sleeved on the main shaft 6, and the two groups of rotary oil seal mechanisms 7 are connected to the two bearing seats 3 respectively;

[0043] The air pipe assembly 8 is connected to the two bearing seats 3 respectively, and the airflow in the air pipe assembly 8 enters the box 1 through the bearing seat 3 and the rotary oil seal mechanism 7;

[0044] Two bearing covers 9 are installed on the box 1, and the two bearing covers 9 cover the two bearing seats 3 respectively;

[0045] The chain wheel 10 is arranged in the box 1, and the chain wheel 10 is connected to the main shaft 6;

[0046] The bearing seat 3 is provided with an air inlet hole, and the air inlet 11 on the air pipe assembly 8 is screwed into the air inlet hole, so that the gas can flow into the bearing seat 3;

[0047] The rotating oil seal mechanism 7 comprises a tetrafluoro sleeve 71, a rotating oil seal body 72, a packing base body 73 and a packing gland 74, the tetrafluoro sleeve 71, the rotating oil seal body 72, the packing base body 73 and the packing gland 74 are all sleeved on the main shaft 6, and the tetrafluoro sleeve 71, the rotating oil seal body 72, the packing base body 73 and the packing gland 74 are all connected to the inner wall of the bearing seat 3, the packing gland 74 is connected to the bearing seat 3 through bolts, and the packing gland 74 extrudes the packing base body 73, the tetrafluoro sleeve 71 is located between the rotating oil seal body 72 and the shaft retaining ring 5, the bearing seat 3 is provided with an annular air flow groove 12, the annular air flow groove 12 is communicated with the air inlet hole, and the annular air flow groove 12 is communicated with the inside of the box body 1 through the tetrafluoro sleeve 71, the tetrafluoro sleeve 71 serves as the first heavy protection, the rotating oil seal body 72 serves as the second heavy protection, the packing base body 73 and the packing gland 74 serve as the third heavy protection, the sealing performance of the main shaft 6 is ensured, in addition, the rotating oil seal body 72 can rotate with the main shaft 6, the wear of the journal of the main shaft 6 is reduced, and the main shaft 6 is protected;

[0048] Two air inlets 13 are formed in the end face of the tetrafluoro sleeve 71, the air inlets 13 are communicated with the annular air flow groove 12, and a spiral flow channel 14 is arranged on the inner wall of the tetrafluoro sleeve 71, the spiral flow channel 14 extends to the opposite two end faces of the tetrafluoro sleeve 71, and the spiral flow channel 14 is communicated with the air inlets 13, the airflow in the air pipe assembly 8 enters the annular air flow groove 12 from the air inlet hole, then the airflow enters the spiral flow channel 14 from the air inlets 13, so that the air is focused in the spiral flow channel 14 and blows to one direction of the main shaft 6, and the rotation relative to the main shaft 6 forms a sweeping action, so that the surrounding powder particles can be swept, the main shaft 6 and the bearing body 4 are not abraded, and the service life of the device is improved;

[0049] An annular groove 15 is formed in the outer wall of the tetrafluoro sleeve 71, and an O-ring 16 is clamped in the annular groove 15, the O-ring 16 abuts against the inner wall of the bearing seat 3, so that the sealing performance between the tetrafluoro sleeve 71 and the bearing seat 3 is ensured;

[0050] The box body 1 is connected with a plurality of transparent and / or translucent observation plates 17, so that the running status inside the box body 1 can be observed.

[0051] Working principle: firstly, the chain wheel 10 drives the main shaft 6 to rotate, the four fluorine sleeve 71 as the first heavy protection, the rotary oil seal body 72 as the second heavy protection, the packing body 73 and the packing gland 74 as the third heavy protection, ensure the sealing of the main shaft 6 installation, in addition, the rotary oil seal body 72 can rotate with the main shaft 6, reduce the wear of the journal of the main shaft 6, secondly, the airflow in the air pipe assembly 8 enters into the annular airflow groove 12 from the air inlet hole, then the airflow enters into the spiral flow channel 14 from the air inlet 13, make the airflow focus on one direction of the main shaft 6, and form the blowing action relative to the rotation of the main shaft 6, the powder particles around can be blown, so that the main shaft 6 and the bearing body 4 are not worn, finally, through the observation plate 17, the running condition inside the box body 1 is observed.

[0052] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, should be covered in the protection scope of the present application.

Claims

1. A dust gas transmission corner box device having a shaft member protection function, characterized by: The utility model provides a kind of bearing box, including: Box (1), which is provided with two flange connecting pipes (2) thereon; Two bearing seats (3) are symmetrically arranged and installed on opposite sides of the box (1), one end of the bearing seat (3) is provided with a bearing body (4), the other end of the bearing seat (3) extends into the box (1) and is provided with a shaft retaining ring (5); A main shaft (6) is connected to the two bearing bodies (4) at both ends respectively; Two sets of rotary oil seal mechanisms (7) are sleeved on the main shaft (6), and the two sets of rotary oil seal mechanisms (7) are connected to the two bearing seats (3) respectively; An air pipe assembly (8) is connected to the two bearing seats (3) respectively, and the airflow in the air pipe assembly (8) enters the box (1) through the bearing seat (3) and the rotary oil seal mechanism (7); Two bearing housings (9) are installed on the box (1), and the two bearing housings (9) cover the two bearing seats (3) respectively; A sprocket (10) is arranged in the box (1), and the sprocket (10) is connected to the main shaft (6).

2. The corner box device for dust gas transmission with shaft protection function according to claim 1, characterized in that, An air inlet hole is arranged on the bearing seat (3), and an air inlet interface (11) on the air pipe assembly (8) is screwed into the air inlet hole.

3. The corner box device for dust gas transmission with shaft protection function according to claim 2, characterized in that, The rotary oil seal mechanism (7) includes a PTFE sleeve (71), a rotary oil seal body (72), a packing body (73), and a packing gland (74), the PTFE sleeve (71), the rotary oil seal body (72), the packing body (73), and the packing gland (74) are all sleeved on the main shaft (6), and the PTFE sleeve (71), the rotary oil seal body (72), the packing body (73), and the packing gland (74) are all connected to the inner wall of the bearing seat (3), the packing gland (74) is connected to the bearing seat (3) by bolts, and the packing gland (74) presses the packing body (73), the PTFE sleeve (71) is located between the rotary oil seal body (72) and the shaft retaining ring (5), an annular airflow groove (12) is formed in the bearing seat (3), the annular airflow groove (12) is connected to the air inlet hole, and the annular airflow groove (12) is connected to the inside of the box (1) through the PTFE sleeve (71).

4. The corner box device for dust gas transmission with shaft protection function according to claim 3, characterized in that, Two air inlet openings (13) are formed in the end face of the PTFE sleeve (71), the air inlet openings (13) are connected to the annular airflow groove (12), and a spiral flow channel (14) is formed in the inner wall of the PTFE sleeve (71), the spiral flow channel (14) extends to the opposite end faces of the PTFE sleeve (71), and the spiral flow channel (14) is connected to the air inlet openings (13).

5. The dust gas transfer elbow tank device with shaft protection function according to claim 4, characterized in that, An annular groove (15) is formed in the outer wall of the PTFE sleeve (71), an O-ring (16) is clamped in the annular groove (15), and the O-ring (16) abuts against the inner wall of the bearing seat (3).

6. The corner box device for dust gas transmission with shaft protection function according to claim 1, characterized in that, A plurality of transparent and / or translucent observation plates (17) are connected to the box (1).

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