A mobile vacuum deaeration tank

Abstract

The utility model discloses a mobile vacuum degassing tank, including degassing tank body, mounting seat, gyro wheel frame, gyro wheel, contact type brake unit, gas guide seat, gas collection hole, gas outlet, horizontal inner chamber, control shaft and drive unit. The utility model has the advantages and effects that: the gyro wheel brake structure of existing mobile vacuum degassing tank is generally cumbersome, inefficient, labor -intensive, lacks instantaneity and convenience, especially lacks an integrated solution that can realize fast, labor -saving, reliable synchronous braking and unbraking to all gyro wheels, the application can effectively solve the above -mentioned problems, significantly improve the braking efficiency and operation convenience of the gyro wheel of mobile vacuum degassing tank, effectively avoid the risk of equipment accidental movement, and greatly reduce the labor intensity of operating personnel.

Description

Technical Field

[0001] This utility model relates to the field of vacuum degassing tanks, and in particular to a mobile vacuum degassing tank. Background Technology

[0002] Vacuum degassing tanks are key equipment in metallurgy, casting, and chemical industries for removing gases (such as hydrogen, oxygen, and nitrogen) from molten metal or specific liquids. They create a vacuum environment that causes dissolved gases to precipitate, significantly improving material quality. To meet the flexible usage needs of different workstations or workshops, mobile vacuum degassing tanks have emerged. These devices typically have a roller frame with wheels at the bottom, allowing for relatively easy movement on the workshop floor using manual labor or auxiliary traction equipment, greatly improving equipment utilization and production scheduling flexibility.

[0003] However, existing mobile vacuum degassing tanks have significant shortcomings and operational inconveniences in terms of braking (locking) and releasing (unlocking) the rollers: Currently, the common practice is to install simple mechanical stops (such as wedge blocks or pin-type stops) near the roller frame, or to install a simple manually operated brake on the roller shaft. When the equipment needs to be fixed in a predetermined position, the operator must manually place the stop or laboriously pull the brake handle. These operations typically need to be set for individual rollers, meaning that on equipment with multiple rollers, the operator needs to operate on each braking point individually (e.g., placing multiple stops or pulling multiple handles) to ensure the equipment is fully locked. This further reduces operational efficiency, increases the risk of forgetting a braking point, and creates safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a mobile vacuum degassing tank to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A mobile vacuum degassing tank includes a degassing tank body, a mounting base is fixedly provided at the lower end of the degassing tank body, and four roller frames are regularly arranged at the lower end of the mounting base, each of the roller frames being rotatably equipped with a roller. Each of the roller frames is provided with a contact braking unit. The contact braking unit is normally separated from the corresponding roller. The contact braking unit is a pneumatic structure that can contact the corresponding roller after receiving air as power to achieve the braking purpose. An air guide seat is fixedly installed on the upper end of one side of the mounting base. The air guide seat has an air intake hole and an air outlet hole. A horizontal inner cavity is opened inside the air guide seat. The air intake hole and the air outlet hole are located at the upper and lower ends of the horizontal inner cavity, respectively. A control shaft capable of horizontal movement is installed in the horizontal inner cavity. A drive unit is fixedly installed on the side of the air guide seat. The drive unit drives the control shaft to move. Under normal conditions, the control shaft keeps the air intake hole and the air outlet hole separated. Under the drive of the drive unit, the control shaft can connect the air intake hole and the air outlet hole, so that the air entering from the air intake hole can enter the four contact braking units to provide power.

[0006] By adopting the above technical solution, the braking purpose is achieved by setting a contact braking unit to contact the rollers. The setting of the control shaft plays the role of isolating and connecting the air intake and exhaust ports. Under normal conditions, the control shaft maintains the isolation between the air intake and exhaust ports. Under the drive of the drive unit, the control shaft can connect the air intake and exhaust ports, so that the air can enter the four contact braking units in sequence through the air intake and exhaust ports to provide power, realizing the simultaneous braking of the four rollers. This not only has high braking efficiency, but also has the advantages of speed and labor saving.

[0007] A further feature is that a vertical internal connecting hole is provided inside the control shaft, and a main spring is provided between the control shaft and the left wall of the horizontal inner cavity. The control shaft moves to the right under the thrust of the main spring, and the internal connecting hole will not connect with the air intake hole and the air outlet hole. The control shaft will move to the left under the drive of the drive unit, so that the inner connecting hole connects the air intake hole and the air outlet hole.

[0008] By adopting the above technical solution, the main spring is designed to ensure that the control shaft isolates the air intake and exhaust ports under normal conditions.

[0009] A further configuration is as follows: the drive unit includes a drive seat fixedly mounted on the right side of the air guide seat, a rotating shaft inserted inside the drive seat, a drive cavity opened inside the drive seat, the rotating shaft extending into the drive cavity, and a bearing connected to the rotating shaft disposed in the drive cavity; a drive block located in the drive cavity is fixedly mounted on the side wall of the rotating shaft; the drive cavity communicates with the horizontal cavity, and the control shaft extends into the drive cavity; as the rotating shaft rotates, the drive block contacts the control shaft to push the control shaft to the left, so that the inner connecting hole connects the air intake hole and the air outlet hole.

[0010] A further setting is that the right end of the control shaft and the drive block are both hemispherical.

[0011] By adopting the above technical solution, the shaft is designed to facilitate user rotation. Both the right end of the control shaft and the drive block are hemispherical, which optimizes the smoothness of contact between the control shaft and the drive block.

[0012] A further configuration is as follows: the contact braking unit includes a brake seat fixedly mounted on the roller frame, the brake seat having a vertical braking cavity inside, the lower end of the braking cavity communicating with the outside, and a brake contact block matching the braking cavity being slidably mounted in the braking cavity, the brake contact block being able to extend downwards out of the braking cavity to contact the corresponding roller to achieve the braking purpose.

[0013] By adopting the above technical solution, the brake contact block can extend downward into the brake cavity and contact the corresponding roller to achieve the braking purpose.

[0014] A further configuration is as follows: a brake shaft is fixedly mounted on the upper end of the brake contact block. One side of the brake shaft is in contact with the right wall of the brake cavity, and the other side has a maintaining distance from the left wall of the brake cavity. A side block is fixedly mounted on the upper half of the brake shaft, which is in contact with the left wall of the brake cavity. An inner cavity is formed between the side block and the brake contact block. An inner partition block fixed to the brake seat is provided in the inner cavity. A secondary spring is provided between the inner partition block and the side block. The brake shaft moves upward under the thrust of the secondary spring, and the brake contact block will not contact the corresponding roller.

[0015] By adopting the above technical solution, the inner partition block can not only contact the brake contact block for limiting, but also provide a support point for the auxiliary spring.

[0016] A further feature is that: there is an air inlet between the upper end of the side block and the upper wall of the brake cavity; a sub-air inlet is provided in the roller frame to communicate with the corresponding air inlet; and a female air inlet is provided in the mounting base to communicate with the air outlet and the sub-air inlets in each roller frame.

[0017] By adopting the above technical solution, the connection with the air outlet is achieved through the female air inlet and the female air inlet.

[0018] In summary, this utility model has the following beneficial effects: Existing mobile vacuum degassing tanks generally have cumbersome operation, low efficiency, high labor intensity, and lack of immediacy and convenience. In particular, there is a lack of an integrated solution that can achieve fast, labor-saving, and reliable synchronous braking and release of all rollers.

[0019] This application effectively addresses the aforementioned problems, significantly improves the braking efficiency and ease of operation of the rollers of the mobile vacuum degassing tank, effectively avoids the risk of accidental equipment movement, and greatly reduces the labor intensity of operators. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 for Figure 1 Enlarged view of section A; Figure 3 for Figure 2 Enlarged view of section B; Figure 4 for Figure 2 Enlarged view of section C.

[0021] In the diagram: 11. Degassing tank body; 12. Mounting base; 13. Roller frame; 14. Roller; 15. Feed inlet; 16. Discharge outlet; 17. Motor; 21. Air guide seat; 22. Horizontal inner cavity; 23. Control shaft; 24. Main spring; 25. Recessed groove; 31. Air collection hole; 32. Air outlet; 33. Internal connecting hole; 41. Drive seat; 42. Rotating shaft; 43. Drive inner cavity; 44. Bearing; 45. Drive block; 51. Brake seat; 52. Brake contact block; 53. Brake shaft; 54. Side block; 55. Inner partition block; 56. Secondary spring; 61. Air receiving chamber; 71. Female air receiving hole; 72. Female air receiving hole; 81. Handle. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] As attached Figures 1 to 4 As shown; This embodiment discloses a mobile vacuum degassing tank, including a degassing tank body 11. Generally, the degassing tank body 11 is the prior art, including a tank body, an inlet 15 at the upper end of the tank body, an outlet 16 at the lower end of the tank body, and a motor 17 fixedly installed at the upper end of the tank body; a mounting base 12 is fixedly installed at the lower end of the degassing tank, and four roller frames 13 are regularly arranged at the lower end of the mounting base 12, and each roller frame 13 is rotatably equipped with a roller 14. Each roller frame 13 is equipped with a contact braking unit. The contact braking unit is normally separated from the corresponding roller 14. The contact braking unit is a pneumatic structure that can contact the corresponding roller 14 after receiving air as power to achieve the braking purpose. An air guide seat 21 is fixedly installed on the upper side of the mounting base 12. The air guide seat 21 has an air intake hole 31 and an air outlet hole 32. A horizontal inner cavity 22 is opened inside the air guide seat 21. The air intake hole 31 and the air outlet hole 32 are located at the upper and lower ends of the horizontal inner cavity 22, respectively. A control shaft 23 capable of horizontal movement is installed in the horizontal inner cavity 22. A drive unit is fixedly installed on the side of the air guide seat 21. The drive unit drives the control shaft 23 to move. Under normal conditions, the control shaft 23 keeps the air intake hole 31 and the air outlet hole 32 isolated. Under the drive of the drive unit, the control shaft 23 can connect the air intake hole 31 and the air outlet hole 32, so that the air entering from the air intake hole 31 can enter the four contact braking units to provide power.

[0024] In one possible implementation, a vertical internal connecting hole 33 is provided inside the control shaft 23, and a main spring 24 is provided between the control shaft 23 and the left wall of the horizontal inner cavity 22. The control shaft 23 moves to the right under the thrust of the main spring 24, and the internal connecting hole 33 will not connect with the air intake hole 31 and the air outlet hole 32. A recessed groove 25 is provided on the left side of the control shaft 23 for the end of the main spring 24 to abut.

[0025] The control shaft 23 will move to the left under the drive of the drive unit, so that the inner connecting hole 33 connects the air intake hole 31 and the air outlet hole 32.

[0026] In one possible implementation, the drive unit includes a drive seat 41 fixedly disposed on the right side of the air guide seat 21. A rotating shaft 42 is inserted into the drive seat 41, and a drive cavity 43 is opened in the drive seat 41. The rotating shaft 42 extends into the drive cavity 43, and a bearing 44 connected to the rotating shaft 42 is disposed in the drive cavity 43. A drive block 45 located in the drive cavity 43 is fixedly disposed on the side wall of the rotating shaft 42. The drive cavity 43 communicates with the horizontal cavity 22, and a control shaft 23 extends into the drive cavity 43. As the rotating shaft 42 rotates, the drive block 45 contacts the control shaft 23 to push the control shaft 23 to the left, so that the inner connecting hole 33 connects the air intake hole 31 and the air outlet hole 32.

[0027] In one possible implementation, both the right end of the control axis 23 and the drive block 45 are hemispherical.

[0028] In one possible implementation, the contact braking unit includes a brake seat 51 fixedly mounted on the roller frame 13. The brake seat 51 has a vertical braking cavity inside, and the lower end of the braking cavity is connected to the outside. A brake contact block 52 matching the braking cavity is slidably mounted in the braking cavity. The brake contact block 52 can extend downward into the braking cavity to contact the corresponding roller 14 to achieve the braking purpose.

[0029] In one possible implementation, a brake shaft 53 is fixedly mounted on the upper end of the brake contact block 52. One side of the brake shaft 53 is attached to the right wall of the brake cavity, and the other side has a maintaining distance from the left wall of the brake cavity. A side block 54 is fixedly mounted on the upper half of the brake shaft 53, which is attached to the left wall of the brake cavity. An inner cavity is formed between the side block 54 and the brake contact block 52. An inner partition block 55, which is fixed to the brake seat 51, is provided in the inner cavity. A secondary spring 56 is provided between the inner partition block 55 and the side block 54. The brake shaft 53 moves upward under the thrust of the secondary spring 56, and the brake contact block 52 will not contact the corresponding roller 14.

[0030] In one possible implementation, the upper end of the side block 54 has an air inlet 61 between it and the upper wall of the brake cavity. The roller frame 13 has a sub-air inlet 71 that communicates with the corresponding air inlet 61. The mounting base 12 has a female air inlet 72 that communicates the air outlet 32 ​​with the sub-air inlet 71 in each roller frame 13.

[0031] Preferably, a handle 81 is fixedly provided on the part of the rotating shaft 42 located outside the drive cavity 43 to facilitate the user to control the rotation of the rotating shaft 42.

[0032] The working process of this embodiment is as follows: 1. Under normal conditions, the brake shaft 53 moves upward under the thrust of the auxiliary spring 56, and the brake contact block 52 will not contact the corresponding roller 14. The brake contact block 52 achieves the purpose of limiting by contacting the inner spacer 55. At this time, the roller 14 is in a free-moving state.

[0033] 2. When braking roller 14 is needed, hold handle 81 to control the rotation of shaft 42. When handle 81 is facing right, drive block 45 will contact control shaft 23 to push control shaft 23 to the left, so that inner connecting hole 33 connects air intake hole 31 and air outlet hole 32. During this process, the contact between drive block 45 and control shaft 23 will provide force feedback so that the user can feel it. After air intake hole 31 and air outlet hole 32 are connected, the user can blow air into air intake hole 31 through handheld micro-power air pump. The air can pass through air outlet hole 32 and then through female air inlet hole 72 to be sent into four female air inlet holes 71 respectively, and then enter air inlet chamber 61. Then, it pushes brake shaft 53 to move down, and brake contact block 52 will contact the corresponding roller 14 to achieve braking.

[0034] 3. After the braking process is completed, release the grip 81. The control shaft 23 moves to the right under the thrust of the main spring 24. The control shaft 23 pushes the drive block 45 to continue moving to the right and abuts against the rotating shaft 42. At this time, the inner connecting hole 33 will not connect with the air intake hole 31 and the air outlet hole 32, realizing automatic sealing, preventing air leakage in the air intake chamber 61, and effectively maintaining braking.

[0035] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A mobile vacuum degassing tank, comprising a degassing tank body (11), wherein a mounting base (12) is fixedly disposed at the lower end of the degassing tank body (11), and four roller frames (13) are regularly disposed at the lower end of the mounting base (12), each of the roller frames (13) being rotatably equipped with a roller (14); characterized in that: Each of the roller frames (13) is provided with a contact braking unit. The contact braking unit is normally separated from the corresponding roller (14). The contact braking unit is a pneumatic structure that can contact the corresponding roller (14) after receiving air as power to achieve the braking purpose. An air guide seat (21) is fixedly installed on the upper side of the mounting base (12). The air guide seat (21) has an air intake hole (31) and an air outlet hole (32). A horizontal inner cavity (22) is opened inside the air guide seat (21). The air intake hole (31) and the air outlet hole (32) are located at the upper and lower ends of the horizontal inner cavity (22), respectively. A control shaft (23) capable of horizontal movement is provided in the horizontal inner cavity (22). A drive unit is fixedly installed on the side of the air guide seat (21). The drive unit drives the control shaft (23) to move. Under normal conditions, the control shaft (23) keeps the air intake hole (31) and the air outlet hole (32) separated. Under the drive of the drive unit, the control shaft (23) can connect the air intake hole (31) and the air outlet hole (32), so that the air entering from the air intake hole (31) can enter the four contact braking units to provide power.

2. A mobile vacuum air removal tank according to claim 1, characterized in that: The control shaft (23) has a vertical internal connecting hole (33). A main spring (24) is provided between the control shaft (23) and the left wall of the horizontal inner cavity (22). The control shaft (23) moves to the right under the thrust of the main spring (24). The internal connecting hole (33) will not connect with the air intake hole (31) and the air outlet hole (32). The control shaft (23) will move to the left under the drive of the drive unit, so that the inner connecting hole (33) connects the air intake hole (31) and the air outlet hole (32).

3. A mobile vacuum degassing tank according to claim 1, characterized in that: The drive unit includes a drive seat (41) fixedly disposed on the right side of the air guide seat (21). A rotating shaft (42) is inserted into the drive seat (41). A drive cavity (43) is opened in the drive seat (41). The rotating shaft (42) extends into the drive cavity (43). A bearing (44) connected to the rotating shaft (42) is provided in the drive cavity (43). A drive block (45) located in the drive cavity (43) is fixedly disposed on the side wall of the rotating shaft (42). The drive cavity (43) communicates with the horizontal cavity (22). The control shaft (23) extends into the drive cavity (43). As the rotating shaft (42) rotates, the drive block (45) contacts the control shaft (23) to push the control shaft (23) to move to the left, so that the inner connecting hole (33) connects the air receiving hole (31) and the air outlet (32).

4. A mobile vacuum degassing tank according to claim 3, characterized in that: The right end of the control shaft (23) and the drive block (45) are both hemispherical.

5. A mobile vacuum degassing tank according to claim 1, characterized in that: The contact braking unit includes a brake seat (51) fixedly mounted on a roller frame (13). The brake seat (51) has a vertical braking cavity inside. The lower end of the braking cavity is connected to the outside. A brake contact block (52) matching the braking cavity is slidably mounted in the braking cavity. The brake contact block (52) can extend downward into the braking cavity to contact the corresponding roller (14) to achieve the braking purpose.

6. A mobile vacuum degassing tank according to claim 5, characterized in that: A brake shaft (53) is fixedly installed on the upper end of the brake contact block (52). One side of the brake shaft (53) is attached to the right wall of the brake cavity, and the other side is kept at a distance from the left wall of the brake cavity. A side block (54) is fixedly installed on the upper half of the brake shaft (53) and is attached to the left wall of the brake cavity. An inner cavity is formed between the side block (54) and the brake contact block (52). An inner partition block (55) fixed to the brake seat (51) is installed in the inner cavity. A secondary spring (56) is installed between the inner partition block (55) and the side block (54). The brake shaft (53) moves upward under the thrust of the secondary spring (56), and the brake contact block (52) will not contact the corresponding roller (14).

7. A mobile vacuum degassing tank according to claim 6, characterized in that: The upper end of the side block (54) has an air inlet (61) between it and the upper wall of the brake cavity. The roller frame (13) has a sub-air inlet (71) that communicates with the corresponding air inlet (61). The mounting base (12) has a female air inlet (72) that communicates with the air outlet (32) and the sub-air inlet (71) in each roller frame (13).

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