Horizontal oven door lifting device

Abstract

A horizontal oven cover lifting device, comprising a lifting support, a lifting beam fixedly installed on the lifting support, a moving plate and a horizontal driving device for driving the moving plate to horizontally translate, an upper lug plate and a lower lug seat installed on the moving plate through a vertical driving device, the upper lug plate and the lower lug seat being respectively arranged on the upper and lower sides of the moving plate, a plurality of guide shafts fixedly connected between the upper lug plate and the lower lug seat, a linear bearing arranged on the moving plate for cooperating with a guide rod, two vertically arranged pin plates fixedly installed on the bottom of the lower lug seat, an installation gap for cooperating with the cover left between the two pin plates, and a latch inserted on the pin plate at the installation gap. The present application can not only drive the cover to vertically lift, but also horizontally translate, which helps to solve the problems of poor sealing, limited operation space and insufficient adaptability of the existing horizontal oven cover lifting structure.

Description

Technical Field

[0001] This utility model relates to a lifting device, and more particularly to a horizontal oven lid lifting device. Background Technology

[0002] Horizontal drying ovens, as core drying equipment widely used in the chemical industry, are facing increasing demands for performance optimization as the industry upgrades. The oven lid, a key functional component of the horizontal drying oven, not only needs to meet basic requirements such as sealing and insulation, real-time observation, and maintenance, but also needs to adapt to complex operating conditions such as high-frequency opening and closing and precise positioning and docking to ensure production efficiency and process stability. However, the technical shortcomings of traditional lid lifting structures are becoming increasingly apparent.

[0003] On the one hand, manual screw or chain drive mode is highly dependent on manual operation, which is not only labor-intensive and has low opening and closing efficiency, but also causes fluctuations in the fit between the lid and the sealing surface of the box due to human factors, which can easily lead to heat loss or the intrusion of external pollutants, directly affecting the drying quality.

[0004] On the other hand, existing lifting structures generally adopt a single vertical lifting structure, and the lid can only move along a straight path. This results in the opening area of ​​the horizontal oven being blocked by the lid itself, limiting the space for operators to pick up and put down materials. Especially when handling large or irregularly shaped materials, frequent adjustments to the material's posture can easily cause collisions and damage, and may even lead to safety hazards. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a time-saving, labor-saving, and highly efficient horizontal oven lid lifting device that can both lift the lid vertically and move it laterally, thus helping to solve the problems of poor sealing, limited operating space, and insufficient adaptability of existing horizontal oven lid lifting structures.

[0006] The technical problem to be solved by this utility model is achieved through the following technical solution. This utility model is a horizontal oven lid lifting device. The device includes a lifting bracket for installation on a horizontal oven, a lifting beam fixedly installed on the lifting bracket, a movable plate and a transverse driving device for driving the movable plate to move laterally installed on the lifting beam, an upper ear plate and a lower ear seat installed on the movable plate by a vertical driving device, the upper ear plate and the lower ear seat are respectively set on the upper and lower sides of the movable plate, a plurality of guide shafts are fixedly connected between the upper ear plate and the lower ear seat, a linear bearing for cooperating with the guide rod is provided on the movable plate, two vertically arranged pin plates are fixedly installed at the bottom of the lower ear seat, an installation gap is left between the two pin plates for cooperating with the lid, and a pin for fixing the lid is inserted into the pin plate at the installation gap, the pin is locked by a cotter pin.

[0007] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the horizontal oven lid lifting device described above, the transverse driving device is a motor with a cycloidal pinwheel reducer. The motor is mounted on the moving plate, a drive gear is mounted on the motor shaft, and a rack that is in transmission cooperation with the drive gear is mounted on the lifting beam.

[0008] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the horizontal oven lid lifting device described above, a linear guide rail is installed on the lifting beam, and a slider is installed on the moving plate, with the slider slidably mounted on the linear guide rail.

[0009] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the horizontal oven lid lifting device described above, the vertical driving device is a lifting cylinder. The lifting cylinder is vertically inverted and installed on the moving plate. The lower ear seat is fixedly installed on the piston rod of the lifting cylinder. An opening for cooperating with the lifting cylinder is provided on the upper ear plate.

[0010] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the horizontal oven lid lifting device described above, an installation hole is provided on the lower ear seat, and an installation part is provided at the end of the piston rod of the lifting cylinder. The installation part passes through the installation hole and is locked by a slotted nut, a spring washer and a cotter pin.

[0011] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the horizontal oven lid lifting device described above, a limiting mechanism for cooperating with the moving plate is also installed on both sides of the crossbeam. The limiting mechanism includes a limiting seat and a buffer pad installed on the limiting seat by a limiting screw. A proximity switch for cooperating with the moving plate is installed on the limiting seat by a switch frame.

[0012] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the horizontal oven lid lifting device described above, back plate I and back plate II are fixedly installed on both sides of the lifting bracket to facilitate cooperation with the oven, and back plate I and back plate II are arranged vertically.

[0013] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the horizontal oven lid lifting device described above, a cable chain box for powering the horizontal drive device and the vertical drive device is also installed on the lifting bracket. The cable chain box is installed on the lifting bracket through the lower cable chain bracket, and an upper cable chain bracket that cooperates with the cable chain box is also installed on the moving plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model adopts a centralized transmission design of a moving plate as a vertical and horizontal drive module to realize the continuous compound motion of "vertical lifting - horizontal translation" of the box cover, which helps to shorten the power transmission path, significantly reduce the operation cycle, reduce the intensity of manual intervention, and improve the overall operation efficiency.

[0016] 2. During the lifting process of the box cover, the guide shaft and the linear bearing form a backlash-free linear motion pair, which eliminates the problem of tilting and wear of the sealing surface caused by the eccentric load of the traditional hinge structure. At the same time, the box cover can effectively avoid friction of the sealing surface by first separating vertically and then moving laterally, ensuring uniform compression of the sealing components, thereby improving the sealing reliability from the source and extending the service life of the sealing components.

[0017] 3. The lifting beam of this utility model adopts a cantilever layout, and the horizontal drive module is built into the moving plate. The overall structure is compact, which greatly reduces the floor space. It not only reserves sufficient operating space around the oven, but also supports quick adaptation to different specifications of equipment, significantly improving the reusability and flexibility of the equipment.

[0018] 4. This utility model adopts a double anti-loosening design of "through pin + cotter pin bending lock" for the connection node between the box cover and the pin plate. The mechanical interlocking structure replaces the traditional thread pre-tightening, which can maintain high connection strength under vibration conditions. At the same time, it simplifies the disassembly and assembly process, eliminates the need to recalibrate the positioning accuracy, and improves maintenance efficiency and safety simultaneously. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a front view of the structure of this utility model;

[0021] Figure 3 This is a side view of the structure of this utility model;

[0022] Figure 4 This is a top view of the structure of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Reference Figure 1-4A horizontal oven lid lifting device, specifically designed for horizontal ovens, is a mechanical device for opening and closing the lid. It mainly consists of a lifting support 1, a lifting beam 2, a moving plate 5, a horizontal drive device 7, a vertical drive device 6, an upper ear plate 12, a lower ear seat 13, a guide shaft 11, a linear bearing 10, a pin plate 15, and a pin 14. These components work together to ensure the lid can be lifted and lowered smoothly and accurately, while also providing reliable positioning and fixing functions. Specifically:

[0025] The device includes a lifting bracket 1 for mounting onto a horizontal oven. The lifting bracket 1 is the basic support structure of the entire device and is used to mount the entire lifting device onto the horizontal oven. Preferably, back plates I16 and II17 are fixedly installed on both sides of the lifting bracket 1 to facilitate cooperation with the oven. The back plates I16 and II17 are arranged vertically to facilitate a stable connection between the lifting bracket 1 and the oven. For example, the back plates I16 and II17 are fixed to the corresponding parts of the oven by bolts or other fasteners.

[0026] A lifting beam 2 is fixedly installed on the lifting bracket 1. A movable plate 5 and a transverse drive device 7 for driving the movable plate 5 to move laterally are installed on the lifting beam 2. The lifting beam 2 provides the mounting base for the movable plate 5 and other related components. It must not only withstand the force of the transverse drive device 7 during operation, but also ensure that the movable plate 5 can move laterally smoothly on it. In order to achieve this function, a linear guide rail 3 is installed on the lifting beam 2, and a slider 4 is installed on the movable plate 5. The slider 4 is slidably installed on the linear guide rail 3.

[0027] The lateral drive device 7 is used to provide power for the lateral movement of the movable plate 5. Preferably, the lateral drive device 7 is a motor with a cycloidal pinwheel reducer. The motor is mounted on the movable plate 5, and a drive gear 8 is mounted on the motor shaft. A rack 9 that is in transmission cooperation with the drive gear 8 is mounted on the lifting beam 2. This transmission method has the characteristics of smooth transmission, high precision, and strong load-bearing capacity, and can meet the needs of opening and closing the box cover in different positions.

[0028] An upper ear plate 12 and a lower ear seat 13 are mounted on the movable plate 5 via a vertical drive device 6. The movable plate 5 is a key component connecting the horizontal drive device 7 and the vertical drive device 6. Under the action of the horizontal drive device 7, it moves laterally on the lifting beam 2, while the vertical drive device 6 drives the upper ear plate 12 and the lower ear seat 13 to move vertically. In order to improve the accuracy of vertical movement, the upper ear plate 12 and the lower ear seat 13 are respectively set on the upper and lower sides of the movable plate 5. Several guide shafts 11 are fixedly connected between the upper ear plate 12 and the lower ear seat 13. A linear bearing 10 for cooperating with the guide rod is provided on the movable plate 5.

[0029] To achieve a proper fit with the lid, two vertically arranged pin plates 15 are fixedly installed at the bottom of the lower ear seat 13. A gap is left between the two pin plates 15 for the lid to fit with. A pin 14 for fixing the lid is inserted into the pin plate 15 at the gap. The pin 14 is locked by a cotter pin. When the lid is inserted into the gap, the pin 14 is inserted and locked, which can firmly fix the lid to the lower ear seat 13, preventing the lid from falling off during lifting and lowering, and facilitating the disassembly and assembly of the lid. Preferably, there are two pins 14, arranged horizontally side by side.

[0030] The vertical drive device 6 is used to provide power for the lower ear seat 13 to drive the box cover to move up and down. Preferably, the vertical drive device 6 is a lifting cylinder, which is vertically inverted and mounted on the moving plate 5. The lower ear seat 13 is fixedly mounted on the piston rod of the lifting cylinder. An opening for cooperating with the lifting cylinder is provided on the upper ear plate 12. More preferably, a mounting hole is provided on the lower ear seat 13. A mounting part is provided at the end of the piston rod of the lifting cylinder. The mounting part passes through the mounting hole and is locked by a slotted nut 27, a spring washer 28 and a cotter pin 29.

[0031] To limit the position of the movable plate 5, limiting mechanisms for cooperating with the movable plate 5 are installed on both sides of the crossbeam. The limiting mechanism includes a limiting seat 18 and a buffer pad 20 installed on the limiting seat 18 by a limiting screw 19. A proximity switch 26 for cooperating with the movable plate 5 is installed on the limiting seat 18 by a switch bracket 25. Specifically, the proximity switch 26 can be set at the position where the movable plate 5 needs to stop, such as directly above the position where the box cover is lifted, or at the limit position where the movable plate 5 can move.

[0032] In actual use, to enable power supply, a cable chain box 21 is also installed on the lifting bracket 1 to supply power to the horizontal drive device 7 and the vertical drive device 6. The cable chain box 21 is mounted on the lifting bracket 1 via a lower cable chain bracket 23, and an upper cable chain bracket 24 that mates with the cable chain box 21 is also installed on the moving plate 5. Cables and signal lines are arranged inside the cable chain box 21, and the top is sealed by a box cover 22. When the moving plate 5 moves, the cable chain can extend and retract accordingly, ensuring that the cables and signal lines are not pulled or worn, and ensuring the stability of power and signal transmission.

[0033] The actual usage process of the horizontal oven lid lifting device provided in this application is as follows:

[0034] According to the position of the lid, the lifting bracket 1 is fixedly installed on the horizontal drying oven to ensure that the moving plate 5 can be moved to the top of the lid;

[0035] 1. When it is necessary to open the box lid

[0036] Start the transverse drive device 7, drive the gear 8 to roll on the rack 9, and drive the moving plate 5 to move laterally on the linear guide rail 3 on the lifting beam 2 until it reaches the top of the box cover. A limit mechanism can be installed here to ensure that the moving plate 5 stops in place.

[0037] Start the vertical drive device 6 to drive the lower ear seat 13 to move downward along the guide shaft 11. The two pin plates 15 at the bottom of the lower ear seat 13 will then descend and gradually approach the cover. When the pin plates 15 descend to the appropriate position so that the cover can be accurately inserted into the installation gap between the two pin plates 15, the operator stops the operation of the vertical drive device 6, then inserts the pin 14 and locks the pin 14 with the cotter pin to ensure that the cover is firmly fixed on the lower ear seat 13.

[0038] Restart the vertical drive device 6 to lift the lower ear seat 13 and the box cover fixed on it upwards together. During the lifting process, the operator closely observes the movement of the box cover to ensure that the box cover is lifted smoothly without any jamming or shaking.

[0039] Once the lid is raised to the required height, the operation stops. At this point, the lid can be finely adjusted laterally as needed. Specifically, the lateral drive device 7 is restarted to move the lid slightly in the horizontal direction using the moving plate 5, in order to meet different operational requirements.

[0040] 2. When it is necessary to close the lid

[0041] Start the horizontal drive device 7, drive the gear 8 to roll on the rack 9, and drive the moving plate 5 to move laterally on the linear guide rail 3 on the lifting beam 2 until the box cover is moved directly above the opening of the horizontal drying oven.

[0042] Start the vertical drive device 6 to drive the lower ear seat 13 and the box cover to move downward together. During the descent, the descent speed should be controlled to ensure that the box cover can smoothly approach the oven body.

[0043] When the lid approaches the oven body, the operator should observe more carefully to ensure that the lid is accurately aligned with the oven opening and to avoid collision between the lid and the oven body.

[0044] Once the lid reaches the appropriate position, the vertical drive device 6 continues to move slowly, causing the lower ear seat 13 to descend a further distance, ensuring that the lid is completely placed on the oven body and makes good contact with the oven's sealing strip, thus ensuring the oven's sealing performance. Then, the operator first pulls out the cotter pin and then removes the pin 14 to release the fixed connection between the lid and the lower ear seat 13.

[0045] Finally, the vertical drive device 6 drives the lower ear seat 13 to move upward and reset, and starts the horizontal drive device 7 to make the moving plate 5 move laterally on the lifting beam 2 and return to the initial position. A limit mechanism can also be installed here to ensure that the moving plate 5 stops in place.

Claims

1. A horizontal oven lid lifting device, characterized in that: The device includes a lifting bracket for mounting on a horizontal drying oven. A lifting beam is fixedly mounted on the lifting bracket. A movable plate and a lateral drive device for driving the movable plate to move laterally are mounted on the lifting beam. An upper ear plate and a lower ear seat are mounted on the movable plate via a vertical drive device. The upper ear plate and the lower ear seat are respectively located on the upper and lower sides of the movable plate. Several guide shafts are fixedly connected between the upper ear plate and the lower ear seat. A linear bearing for cooperating with the guide rod is provided on the movable plate. Two vertically arranged pin plates are fixedly mounted at the bottom of the lower ear seat. An installation gap is left between the two pin plates for cooperating with the oven lid. A pin for fixing the oven lid is also inserted into the pin plate at the installation gap. The pin is locked by a cotter pin.

2. The horizontal oven lid lifting device according to claim 1, characterized in that: The lateral drive device is a motor with a cycloidal pinwheel reducer. The motor is mounted on a moving plate, a drive gear is mounted on the motor shaft, and a rack that meshes with the drive gear is mounted on the lifting beam.

3. The horizontal oven lid lifting device according to claim 1 or 2, characterized in that: A linear guide rail is installed on the lifting beam, and a slider is installed on the moving plate. The slider is slidably mounted on the linear guide rail.

4. The horizontal oven lid lifting device according to claim 1, characterized in that: The vertical drive device is a lifting cylinder, which is vertically inverted and mounted on the moving plate. The lower ear is fixedly mounted on the piston rod of the lifting cylinder, and an opening is provided on the upper ear plate for cooperating with the lifting cylinder.

5. The horizontal oven lid lifting device according to claim 4, characterized in that: A mounting hole is provided on the lower ear seat, and a mounting part is provided at the end of the piston rod of the lifting cylinder. The mounting part passes through the mounting hole and is locked by a slotted nut, a spring washer and a cotter pin.

6. The horizontal oven lid lifting device according to claim 1, characterized in that: Limiting mechanisms for cooperating with the moving plate are also installed on both sides of the crossbeam. The limiting mechanism includes a limiting seat and a buffer pad installed on the limiting seat by a limiting screw. A proximity switch for cooperating with the moving plate is installed on the limiting seat by a switch bracket.

7. The horizontal oven lid lifting device according to claim 1, characterized in that: Back plates I and II are fixedly installed on both sides of the lifting bracket to facilitate cooperation with the drying oven. Back plates I and II are arranged vertically.

8. The horizontal oven lid lifting device according to claim 1, characterized in that: A cable chain box for powering the horizontal and vertical drive devices is also installed on the lifting bracket. The cable chain box is installed on the lifting bracket via a lower cable chain bracket, and an upper cable chain bracket that mates with the cable chain box is also installed on the moving plate.

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