Vacuum pre-cooler upper door device

Abstract

The utility model belongs to the technical field of the upturning door device, concretely relates to a vacuum precooling machine upturning door device, including the mounting plate of being installed on the box of vacuum precooling machine, be connected with the transmission shaft rotation on the mounting plate, and the traction arm is fixed with both ends of transmission shaft, be connected with the upturning door of the import and export cooperation of box rotation on the traction arm, and the support wheel that supports upturning door is connected with rotation on the mounting plate, be equipped with the drive assembly of transmission shaft rotation on the mounting plate, still be equipped with the safety assembly of transmission shaft position protection on the mounting plate, the utility model effectively solved the problem that the stability and safety of existing vacuum precooling machine upturning door device are not good.

Description

Technical Field

[0001] This utility model belongs to the technical field of upward-opening door devices, specifically relating to an upward-opening door device for a vacuum precooling machine. Background Technology

[0002] A vacuum precooler is a cooling processing device that uses vacuum precooling technology to extract air and water vapor from a vacuum chamber using a vacuum pump, thereby reducing the air pressure inside the vacuum chamber. Under low pressure, the boiling point of water decreases, the latent heat of vaporization increases, and the free water on the surface of the object being cooled vaporizes, carrying away heat from itself and the environment, thus achieving a cooling effect.

[0003] The inlet and outlet of the vacuum precooler are mostly sealed by a top-opening door device. However, the existing top-opening door device is opened and closed by a hydraulic rod. After a long period of use, there may be a risk of hydraulic oil leakage, which will affect the stability of the top-opening door. In addition, the top-opening door is opened and closed simply by a hydraulic rod without corresponding safety measures. When the hydraulic rod fails, the top-opening door is prone to accidents, causing significant losses and even injuries to personnel. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a vacuum precooling machine top-opening door device, which effectively solves the problems of poor stability and safety of the existing vacuum precooling machine top-opening door device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vacuum precooler top-opening door device, comprising an mounting plate installed on the housing of the vacuum precooler; a drive shaft is rotatably connected to the mounting plate, and traction arms are fixedly connected to both ends of the drive shaft; a top-opening door that cooperates with the inlet and outlet of the housing is rotatably connected to the traction arms, and a support wheel for supporting the top-opening door is rotatably connected to the mounting plate; a drive assembly for driving the drive shaft to rotate is provided on the mounting plate, and a safety assembly for limiting and protecting the drive shaft is also provided on the mounting plate.

[0006] Furthermore, the drive assembly includes a geared motor mounted on a mounting plate, the output end of which is connected to a power gear, and a follower gear that is fixedly connected to the transmission shaft meshes with the power gear.

[0007] Furthermore, the safety component includes a safety gear fixedly connected to the drive shaft, and a safety insert plate rotatably connected to the mounting plate, which engages with the teeth of the safety gear.

[0008] Furthermore, a safety frame is mounted on the mounting plate, and a cylinder is rotatably connected to the safety frame. The telescopic end of the cylinder is rotatably connected to the safety insert plate.

[0009] Furthermore, the traction arm includes a long arm fixedly connected to the drive shaft, with a movable arm rotatably connected to one end of the long arm near the top door, and the other end of the movable arm rotatably connected to the top door.

[0010] Furthermore, the housing is provided with a limiting plate to limit the movement of the long arm.

[0011] Furthermore, the enclosure is provided with a sealing ring that mates with the upward-opening door, and the sealing ring is arranged along the outer periphery of the enclosure's inlet and outlet.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. In use, this utility model uses a geared motor in conjunction with a power gear and a follower gear to drive the transmission shaft to rotate, which in turn drives the long arm and movable arm to open and close the lifting door. This effectively avoids the risk of hydraulic oil leakage that occurs when using a telescopic rod for driving, thereby improving the stability of the lifting door.

[0014] 2. In use, this utility model uses the safety insert plate to cooperate with the tooth groove of the safety gear to limit and fix the safety gear, thereby limiting and fixing the transmission shaft to ensure the stability of the transmission shaft in a static state and improve the stability of the upward-opening door in a closed state. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the usage state of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 In this utility model Figure 2 Enlarged view of region A in the middle;

[0018] In the diagram: 1. Box body, 2. Flip-up door, 3. Long arm, 4. Mounting plate, 5. Gear motor, 6. Limit plate, 7. Power gear, 8. Follower gear, 9. Support wheel, 10. Movable arm, 11. Drive shaft, 12. Safety gear, 13. Safety frame, 14. Cylinder, 15. Safety insert plate. Detailed Implementation

[0019] A vacuum precooler with an upward-opening door device, such as Figure 1-3As shown, the device includes a mounting plate 4 installed on the housing 1 of the vacuum precooler; a drive shaft 11 is rotatably connected to the mounting plate 4, and traction arms are fixed to both ends of the drive shaft 11; an upward-opening door 2 that cooperates with the inlet and outlet of the housing 1 is rotatably connected to the traction arm, and a support wheel 9 that supports the upward-opening door 2 is rotatably connected to the mounting plate 4; a drive assembly that drives the drive shaft 11 to rotate is provided on the mounting plate 4, and a safety assembly that limits and protects the drive shaft 11 is also provided on the mounting plate 4.

[0020] In use, the mounting plate 4 is welded onto the housing 1. When the lift-up door 2 needs to be opened or closed, the drive assembly drives the transmission shaft 11 to rotate. The transmission shaft 11 drives the traction arm to rotate, and the traction arm drives the lift-up door 2 to move. During the movement of the lift-up door 2, the support wheel 9 supports the lift-up door 2. The safety assembly limits the transmission shaft 11 to ensure the stability of the transmission shaft 11 in the stationary state and improve the stability of the lift-up door 2 in the opening and closing state. In addition, the traction arm is rotatably connected to the upper part of the lift-up door 2. In the open state of the lift-up door 2, the upper part of the lift-up door 2 is pulled by the traction arm, and the lower part of the lift-up door 2 is supported by the support wheel 9 to improve the stability of the lift-up door 2 in the open state.

[0021] Furthermore, the drive assembly includes a geared motor 5 mounted on the mounting plate 4. The output end of the geared motor 5 is connected to a power gear 7, and a follower gear 8, which is fixedly connected to the transmission shaft 11, meshes with the power gear 7. The geared motor 5, in conjunction with the power gear 7 and the follower gear 8, drives the transmission shaft 11 to rotate, thereby rotating the traction arm. Driving with the geared motor 5 effectively avoids the risk of hydraulic oil leakage that occurs when using a telescopic rod, thus improving the stability of the upward-opening door 2.

[0022] Furthermore, the safety component includes a safety gear 12 fixedly connected to the drive shaft 11, and a safety insert plate 15 rotatably connected to the mounting plate 4, which engages with the tooth groove of the safety gear 12; a safety frame 13 is mounted on the mounting plate 4, and a cylinder 14 is rotatably connected to the safety frame 13, with the telescopic end of the cylinder 14 rotatably connected to the safety insert plate 15.

[0023] When the safety component is in use, after the drive shaft 11 has finished rotating, the cylinder 14 is activated to extend the cylinder 14. The cylinder 14 drives the safety insert plate 15 to rotate along the mounting plate 4. The safety insert plate 15 engages with the tooth groove of the safety gear 12 to limit and fix the safety gear 12, thereby limiting and fixing the drive shaft 11 to improve the stability of the limit shaft and the traction arm.

[0024] Furthermore, the traction arm includes a long arm 3 fixedly connected to the drive shaft 11, and a movable arm 10 is rotatably connected to one end of the long arm 3 near the top door 2, and the other end of the movable arm 10 is rotatably connected to the top door 2.

[0025] The traction arm consists of a long arm 3 and a movable arm 10. When the long arm 3 pulls the top door 2 through the movable arm 10, the movable arm 10 makes the top door 2 more stable and improves the tightness of the fit between the top door 2 and the inlet and outlet of the box 1.

[0026] Furthermore, the housing 1 is provided with a limiting plate 6 to limit the long arm 3. The limiting plate 6 supports the traction arm of the flip-up door 2 in the closed state, so as to improve the stability of the flip-up door 2 in the closed state.

[0027] Furthermore, the housing 1 is provided with a sealing ring that cooperates with the flip-up door 2, and the sealing ring is set along the outer periphery of the inlet and outlet of the housing 1; by setting the sealing ring, the sealing performance of the connection between the flip-up door 2 and the inlet and outlet of the housing 1 is improved.

[0028] The working process of this utility model is as follows:

[0029] In use, when the lifting door 2 needs to be opened or closed, the reduction motor 5 is started. The reduction motor 5 drives the transmission shaft 11 to rotate through the cooperation of the power gear 7 and the follower gear 8. The transmission shaft 11 drives the upper arm to rotate, and the upper arm drives the lifting door 2 to move through the movable arm 10. During the movement of the lifting door 2, the support wheel 9 supports the lifting door 2. When the lifting door 2 is closed, the upper arm rotates to the position of contacting the limit plate 6. When the lifting door 2 is opened, as... Figure 2 As shown, at this time, the support wheel 9 supports the lower part of the flip-up door 2, and the upper arm and movable arm 10 cooperate to support the upper part of the flip-up door 2.

[0030] After the lifting door 2 is opened and closed, the cylinder 14 can be activated to extend the cylinder 14. The cylinder 14 drives the safety insert plate 15 to rotate along the mounting plate 4. The safety insert plate 15 engages with the tooth groove of the safety gear 12 to limit and fix the safety gear 12, thereby limiting and fixing the transmission shaft 11.

Claims

1. A top-opening door device for a vacuum precooler, comprising a mounting plate (4) installed on the housing (1) of the vacuum precooler; characterized in that: The mounting plate (4) is rotatably connected to a drive shaft (11), and traction arms are fixedly connected to both ends of the drive shaft (11). The traction arm is rotatably connected to an upward-opening door (2) that cooperates with the inlet and outlet of the box (1). The mounting plate (4) is rotatably connected to a support wheel (9) that supports the upward-opening door (2). The mounting plate (4) is provided with a drive assembly that drives the drive shaft (11) to rotate. The mounting plate (4) is also provided with a safety assembly that limits and protects the drive shaft (11).

2. The vacuum precooling machine flip-up door device as described in claim 1, characterized in that: The drive assembly includes a geared motor (5) mounted on a mounting plate (4), the output end of which is connected to a power gear (7), and a follower gear (8) meshing with the power gear (7) and fixedly connected to the transmission shaft (11).

3. The vacuum precooler flip-up door device as described in claim 1, characterized in that: The safety component includes a safety gear (12) fixedly connected to the drive shaft (11), and a safety insert plate (15) rotatably connected to the mounting plate (4) to engage with the tooth groove of the safety gear (12).

4. The vacuum precooling machine flip-up door device as described in claim 3, characterized in that: A safety frame (13) is installed on the mounting plate (4), and a cylinder (14) is rotatably connected to the safety frame (13). The telescopic end of the cylinder (14) is rotatably connected to the safety insert plate (15).

5. The vacuum precooling machine flip-up door device as described in claim 1, characterized in that: The traction arm includes a long arm (3) fixedly connected to the drive shaft (11). One end of the long arm (3) near the top door (2) is rotatably connected to a movable arm (10), and the other end of the movable arm (10) is rotatably connected to the top door (2).

6. The vacuum precooling machine flip-up door device as described in claim 1, characterized in that: The housing (1) is provided with a limiting plate (6) to limit the long arm (3).

7. The vacuum precooling machine flip-up door device as described in claim 1, characterized in that: The box (1) is provided with a sealing ring that cooperates with the flip-up door (2), and the sealing ring is set along the outer periphery of the inlet and outlet of the box (1).

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