Novel gate bearing rotating shaft of shot blasting machine
By adopting a new type of gate bearing shaft structure that combines a shaft and a bearing on the gate of the shot blasting machine, the problems of low coaxiality and wear caused by traditional hinges are solved, achieving high load capacity and easy opening and closing, and extending the service life of the gate of the shot blasting machine.
Patent Information
- Application Number
- CN202423161844.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The doors of shot blasting machines use traditional hinges, which have problems such as low coaxiality, low load capacity, easy deformation and jamming. Especially when multiple hinges are welded on long doors, the coaxiality is reduced, leading to increased wear.
A new type of gate bearing pivot structure is adopted, which combines a shaft and a load-bearing bearing. It includes a drive unit, a mounting arm, a connecting frame, a shaft, and a load-bearing bearing. By utilizing the high load capacity of the load-bearing bearing and the self-aligning bearing to automatically adjust the angle error, it replaces the traditional hinge and achieves high pivot accuracy and easy opening and closing.
It improves the coaxiality of the door, reduces wear, extends service life, and avoids deformation and jamming, making it suitable for the use of heavy-duty doors.
Smart Images
Figure CN223532256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shot blasting machine equipment technology, and in particular to a new type of gate bearing shaft for shot blasting machines. Background Technology
[0002] A shot blasting machine is a mechanical device used for metal surface treatment. It primarily uses high-speed rotating shot (small steel balls, steel grit, etc.) to impact the surface of an object, achieving cleaning, strengthening, or decorative effects. The gate of the shot blasting machine is an important component, used for material entry and exit, and for sealing and isolating the area where the workpieces to be treated are to be processed.
[0003] Currently, the doors of shot blasting machines are typically installed onto the equipment using hinges. However, since shot blasting machine doors are heavy-duty doors, traditional hinges have several drawbacks for heavy-duty doors, such as low coaxiality, low load capacity, and susceptibility to deformation. Furthermore, due to the large size of shot blasting machines and the length of the doors, welding traditional hinges often requires multiple hinges to the door due to its excessive length. This reduces the coaxiality between the hinges, causing the door to jam and increasing hinge wear. Summary of the Invention
[0004] To address the aforementioned problems, this utility model provides a novel gate support shaft for shot blasting machines.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A novel gate bearing shaft for shot blasting machines includes a gate body, a drive unit, a mounting arm, a connecting frame, a shaft, and a bearing.
[0007] One end of the mounting arm is fixed to the shot blasting machine, and the other end of the mounting arm is hinged to the drive device; the output axis of the drive device extends to the middle of the door body and is hinged to the door body, and the drive device is set at an angle to the plane where the door panel is located.
[0008] The connecting frame includes a support frame and a connecting rod. The support frame is fixed to the door body, and the connecting rod is horizontally fixed to the support frame. One end of the connecting rod extends outward from the edge of the door body to fix the shaft. The shaft is perpendicular to the connecting rod. The upper and lower ends of the shaft are respectively connected to the load-bearing bearing. The load-bearing bearing has a mounting plate with mounting holes to fix the load-bearing bearing to both sides of the door opening of the shot blasting machine. The door panel blocks the door opening.
[0009] Furthermore, the load-bearing bearing includes a short cylinder, a cover, a swivel bearing, and a self-aligning bearing;
[0010] The short cylinder includes a first end and a second end. The mounting plate is fixed to the end face of the first end. The end face of the second end has a first screw hole. The cover body is provided with a corresponding second screw hole. The cover body is fixed to the short cylinder by bolt connection. The middle part of the cover body is provided with a shaft hole.
[0011] Both the rotary bearing and the self-aligning bearing are fitted to the shaft. The rotary bearing and the self-aligning bearing are installed inside the short cylinder. The rotary bearing is located close to the cover. The rotary bearing, the self-aligning bearing, and the short cylinder are concentrically arranged.
[0012] Furthermore, the outer side of the first end of the short cylinder has a first annular groove, and the mounting plate has a circular hole. The mounting plate is sleeved on the outer side of the first annular groove through the circular hole and fixes the short cylinder.
[0013] The inner wall of the short cylinder is provided with a second annular groove, the opening of the second annular groove facing the second end; the rotary bearing and the self-aligning bearing are disposed in the second annular groove, the side of the self-aligning bearing facing the first end abuts against the bottom of the second annular groove, and an annular washer is also provided between the rotary bearing and the self-aligning bearing.
[0014] Furthermore, the short cylinder is integrally connected to the mounting base plate.
[0015] Furthermore, the self-aligning bearing is a self-aligning roller bearing; the rotary bearing is a thrust ball bearing.
[0016] Furthermore, the door has two parts, and a hinge seat is provided on the door. The hinge seat is located near the inner side of the door, and the output shaft of the drive device is connected to the hinge seat.
[0017] Furthermore, the driving device is an electric actuator.
[0018] Furthermore, there are at least two connecting rods, and one end of each connecting rod extending outward from the outside of the door body is connected to the same shaft.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) This utility model adopts a shaft rod method to cooperate with the load bearing, changing the traditional hinge to a through shaft, which has a high shaft degree and avoids welding multiple hinges on the door panel when the door length is too long. In addition, the load bearing is used, which has a larger load and avoids deformation, making it suitable for heavy doors of shot blasting machines. (2) This utility model is equipped with a self-aligning bearing to realize automatic adjustment of the angle error between the shaft and the bearing, which has a higher bearing degree, reduces wear, and has a better load-bearing capacity, thus increasing the service life. The use of the self-aligning bearing makes the door closing easier. Attached Figure Description
[0020] Figure 1This is a three-dimensional structural diagram of a new type of gate bearing shaft for a shot blasting machine according to the present invention;
[0021] Figure 2 This is a front view of a new type of gate bearing pivot for shot blasting machines according to this utility model;
[0022] Figure 3 This is a cross-sectional view AA of a new type of gate bearing shaft for shot blasting machines according to this utility model;
[0023] Figure 4 This is an enlarged view of part I of a new type of gate bearing shaft for shot blasting machines according to this utility model. Detailed Implementation
[0024] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.
[0025] Please refer to the reference. Figure 1 , Figure 2 , Figure 3 and Figure 4 A novel gate bearing shaft for shot blasting machines according to an embodiment of the present invention includes a gate body 100, a drive device 200, a mounting arm 300, a connecting frame 400, a shaft 500, and a bearing 600.
[0026] One end of the mounting arm 300 is fixed to the shot blasting machine, and the other end of the mounting arm 300 is hinged to the drive device 200. The output shaft 210 of the drive device 200 extends towards the middle of the door body 100 and is hinged to the door body 100. A base plate 310 is fixed to one end of the mounting arm 300, and the base plate 310 is positioned facing the door body 100 to facilitate fixing the mounting arm 300 to the shot blasting machine. The drive device 200 is set at an angle to the plane of the door body 100. This ensures that the drive device 200 has space to open and close the door body 100, facilitating automated control.
[0027] The connecting frame 400 includes a support frame 410 and a connecting rod 420. The support frame 410 is fixed to the door body 100, and the connecting rod 420 is horizontally fixed to the support frame 410. One end of the connecting rod 420 extends outward from the edge of the door body 100 and fixes the shaft 500. The shaft 500 is perpendicular to the connecting rod 420. The upper and lower ends of the shaft 500 are respectively connected to the bearing 600. The bearing 600 has a mounting plate 610 with mounting holes 611 for fixing the bearing 600 to both sides of the shot blasting machine's door opening. The mounting holes 611 facilitate the fixing of the bearing 600 to the shot blasting machine, ensuring a secure fixation. The bearing can be disassembled for repair when damaged. The door panel 100 blocks the door opening. This utility model uses a shaft 500 in conjunction with a load-bearing bearing 600, replacing the traditional hinge with a through shaft, which has high axiality and avoids the need to weld multiple hinges onto the door panel 100 when the door is too long. Furthermore, the use of the load-bearing bearing 600 provides greater load capacity and prevents deformation, making it suitable for heavy-duty doors used in shot blasting machines.
[0028] In use, the extension and retraction of the output shaft 210 of the drive device 200 applies a force in the tilt direction to the door panel 100, causing the door body 100 to move. The connecting rod 420 on the door body 100 drives the shaft 500 to rotate around the bearing 600, thereby realizing the opening and closing of the door body 100. This makes it more convenient to use, and the rotation is smooth and not easy to jam.
[0029] The bearing 600 includes a short cylinder 620, a cover 630, a rotary bearing 640, and a self-aligning bearing 650. The short cylinder 620 includes a first end 621 and a second end 622. The end face of the first end 621 is fixed to the mounting base plate 610. The end face of the second end 622 has a first screw hole 623. The cover 630 is provided with a corresponding second screw hole 631. The cover 630 is fixed to the short cylinder 620 by bolts. The middle part of the cover 630 is provided with a shaft hole 632 to ensure that the shaft 500 can pass through the shaft hole 632 and enter the short cylinder 620 to cooperate with the rotary bearing 640 and the self-aligning bearing 650, so as to realize the rotation of the shaft 500.
[0030] Both the rotary bearing 640 and the self-aligning bearing 650 mate with the shaft 500. The rotary bearing 640 and the self-aligning bearing 650 are installed inside the short cylinder 620. The rotary bearing 640 is positioned close to the cover 630, and the rotary bearing 640, the self-aligning bearing 650, and the short cylinder 620 are concentrically arranged. The cover 630 is detachably connected and fixed with bolts for easy maintenance. When the internal rotary bearing 640 and self-aligning bearing 650 are damaged, the cover 630 can be opened for replacement, extending their service life. This invention, by adding the self-aligning bearing 650, automatically adjusts the angular error between the shaft 500 and the bearing, ensuring the coaxiality of the door, effectively reducing bearing damage caused by misalignment, reducing friction, and extending service life.
[0031] The short cylinder 620 has a first annular groove 624 on the outer side of the first end 621. The mounting plate 610 has a round hole 611. The mounting plate is sleeved on the outer side of the first annular groove 624 through the round hole 611 and fixes the short cylinder 620. This ensures that the mounting plate 610 and the short cylinder 620 are properly fitted and fixed, and the structure is aesthetically pleasing.
[0032] The inner wall of the short cylinder 620 is provided with a second annular groove 625, the opening of the second annular groove 625 facing the second end 622; the rotary bearing 640 and the self-aligning bearing 650 are disposed in the second annular groove 625, the side of the self-aligning bearing 650 facing the first end 621 abuts against the bottom of the second annular groove 625, and an annular washer 660 is also provided between the rotary bearing 640 and the self-aligning bearing 650 to stabilize the position between the self-aligning bearing 640 and the rotary bearing 650, provide stable support, ensure that the relative position of the bearings will not move or deviate during operation, ensure coaxiality, and avoid friction or damage caused by direct contact between the two.
[0033] The short cylinder 620 is integrally connected to the mounting plate 610. This ensures connection strength, increases the load-bearing capacity of the bearing 600, prevents damage, is suitable for heavy-duty doors, and extends service life.
[0034] The self-aligning bearing 650 is a self-aligning roller bearing; ensuring that in addition to adjusting the shaft center, the self-aligning bearing 650 can withstand higher loads, making it suitable for use in shot blasting machine doors. The rotary bearing 640 is a thrust ball bearing. The rotary bearing 640 uses a heavy-duty bearing with high wear resistance, maintaining stable working performance for a longer period. It has good durability when bearing high axial loads, ensuring smooth rotation during long-term use and easy opening and closing of the door, thus extending the service life of the device and reducing maintenance frequency and costs. Both the self-aligning bearing 650 and the rotary bearing 640 are existing bearings. This application only uses existing bearings and does not innovate the bearing structure; therefore, the specific structures of the self-aligning bearing 650 and the rotary bearing 640 will not be described in detail.
[0035] There are two door bodies 100, and each door body 100 is provided with a hinge seat 110. The hinge seat 110 is located near the inner side of the door body 100, and the output shaft 210 of the drive device 200 is connected to the hinge seat 110. This facilitates the connection and installation of the drive device 200 and the door body 100, and ensures that the drive device 200 can drive the door body 100 to open and close.
[0036] The drive device 200 is an electric push rod. It facilitates electric control of the door's opening and closing, can be connected to the system, and achieves automated control.
[0037] There are at least two connecting rods 420, and one end of each connecting rod 420 extending outward from the door body 100 is connected to the same shaft 500. This ensures the connection strength between the shaft 500 and the door body 100, and the use of the same shaft 500 ensures the coaxiality of the door body 100, preventing the door body 100 from getting stuck during rotation and making the rotation of the door body 100 easier.
[0038] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.
Claims
1. A novel gate bearing pivot for shot blasting machines, characterized in that: This includes the door body, drive unit, mounting arm, connecting frame, shaft, and load-bearing bearing; One end of the mounting arm is fixed to the shot blasting machine, and the other end of the mounting arm is hinged to the drive device; the output axis of the drive device extends to the middle of the door body and is hinged to the door body, and the drive device is set at an angle to the plane where the door panel is located. The connecting frame includes a support frame and a connecting rod. The support frame is fixed to the door body, and the connecting rod is horizontally fixed to the support frame. One end of the connecting rod extends outward from the edge of the door body to fix the shaft. The shaft is perpendicular to the connecting rod. The upper and lower ends of the shaft are respectively connected to the load-bearing bearing. The load-bearing bearing has a mounting plate with mounting holes to fix the load-bearing bearing to both sides of the door opening of the shot blasting machine. The door panel blocks the door opening.
2. The new type of gate bearing shaft for shot blasting machines as described in claim 1, characterized in that: The load-bearing bearing includes a short cylinder, a cover, a swivel bearing, and a self-aligning bearing; The short cylinder includes a first end and a second end. The mounting plate is fixed to the end face of the first end. The end face of the second end has a first screw hole. The cover body is provided with a corresponding second screw hole. The cover body is fixed to the short cylinder by bolt connection. The middle part of the cover body is provided with a shaft hole. Both the rotary bearing and the self-aligning bearing are fitted to the shaft. The rotary bearing and the self-aligning bearing are installed inside the short cylinder. The rotary bearing is located close to the cover. The rotary bearing, the self-aligning bearing, and the short cylinder are concentrically arranged.
3. The new type of gate bearing shaft for shot blasting machines as described in claim 2, characterized in that: The short cylinder has a first annular groove on the outer side of its first end, and the mounting plate has a circular hole. The mounting plate is sleeved on the outer side of the first annular groove through the circular hole and the short cylinder is fixed thereon. The inner wall of the short cylinder is provided with a second annular groove, the opening of the second annular groove facing the second end; the rotary bearing and the self-aligning bearing are disposed in the second annular groove, the side of the self-aligning bearing facing the first end abuts against the bottom of the second annular groove, and an annular washer is also provided between the rotary bearing and the self-aligning bearing.
4. The new type of gate bearing shaft for shot blasting machines as described in claim 2, characterized in that: The short cylinder is integrally connected to the mounting base plate.
5. The new type of gate bearing shaft for shot blasting machines as described in claim 2, characterized in that: The self-aligning bearing is a self-aligning roller bearing; the rotary bearing is a thrust ball bearing.
6. The new type of gate bearing shaft for shot blasting machines as described in claim 1, characterized in that: The door has two parts, and a hinge seat is provided on the door. The hinge seat is located near the inner side of the door, and the output shaft of the drive device is connected to the hinge seat.
7. The new type of gate bearing shaft for shot blasting machines as described in claim 1, characterized in that: The driving device is an electric push rod.
8. The new type of gate bearing shaft for shot blasting machines as described in claim 1, characterized in that: There are at least two connecting rods, and one end of each connecting rod extending outward from the outside of the door is connected to the same shaft.