Rotating device for CBCT equipment and CBCT equipment

Abstract

The utility model provides a rotating device for CBCT equipment and the CBCT equipment, and relates to the technical field of CBCT, the rotating device comprises a supporting seat and a base inserted in the supporting seat, and further comprises a double-row angular contact ball bearing, a deep groove ball bearing and a driving part, the double-row angular contact ball bearing is movably arranged between the supporting seat and the base, and the deep groove ball bearing is arranged in the supporting seat. The deep groove ball bearing is movably arranged between the supporting seat and the base and located under the double-row angular contact ball bearing, and the driving part is arranged outside the base and used for driving the base to rotate along the axis of the supporting seat. According to the CBCT equipment, under the condition that the bearing weight of the rotating device in the CBCT equipment is large, the problem that the rotating device is jammed and abraded due to pressure is solved, so that the rotating precision and stability of the rotating device can be improved, and the rotating device is simple in structure, convenient to install and low in manufacturing cost and later maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of CBCT, in particular to a rotating device for CBCT equipment and CBCT equipment. Background Art

[0002] CBCT is the abbreviation of Cone beam CT, which is a cone beam CT computer reconstruction tomography device. Its principle is that the X-ray generator uses a low amount of radiation to perform circular digital projection (DR) around the projection object. Then the data obtained from the intersection of multiple digital projections around the projection object is reorganized in the computer to obtain a three-dimensional image. When using the CBCT device, the patient needs to sit on the rotating device of the device, which drives the patient to rotate and cooperate with the shooting device to complete the scanning work.

[0003] Currently, most rotating components in CBCT on the market use hollow rotary platforms or rotary supports, which can generally be used directly after purchase. Some equipment also uses gears and other transmission methods, but the subsequent maintenance costs of these devices are relatively high, and most rotating devices are prone to problems with rotation accuracy not meeting the requirements due to high friction when under load. Utility Model Content

[0004] The utility model aims to solve the problems that the existing rotating device for CBCT equipment has a complex structure and high use cost, and may become stuck and affect the rotation accuracy due to increased friction when bearing weight.

[0005] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0006] A rotating device for CBCT equipment includes a support seat and a base inserted in the support seat, and also includes:

[0007] A double-row angular contact ball bearing, wherein the double-row angular contact ball bearing is movably arranged between the support seat and the base;

[0008] A deep groove ball bearing, wherein the deep groove ball bearing is movably arranged between the support seat and the base, and the deep groove ball bearing is located directly below the double row angular contact ball bearing;

[0009] The driving member is arranged outside the base and is used to drive the base to rotate along the axis of the support base.

[0010] As a preferred technical solution of the present application, the support seat includes a fixed plate and a fixed cylinder arranged in the middle of the top of the fixed plate.

[0011] As a preferred technical solution of the present application, the base includes a boss-shaped mounting seat and a rotating shaft arranged in the middle of the bottom of the mounting seat. The bottom of the mounting seat is provided with a reserved cavity for installing a fixing cylinder and a double-row angular contact ball bearing.

[0012] As a preferred technical solution of the present application, a limiting boss is provided on the inner side wall of the fixed cylinder, an end cover is provided on the bottom of the fixed plate, the end faces on both sides of the double-row angular contact ball bearing are respectively in contact with the inner top wall of the mounting seat and the top of the limiting boss, and the end faces on both sides of the deep groove ball bearing are respectively in contact with the bottom of the limiting boss and the top of the end cover.

[0013] As a preferred technical solution of the present application, the driving member includes a pulley, which is sleeved on the outside of the fixed cylinder. The pulley and the top edge of the mounting seat are provided with a plurality of corresponding screw holes, and the screw holes are threadedly connected with positioning bolts.

[0014] As a preferred technical solution of the present application, a mounting hole is provided in the middle of the top of the mounting seat, which passes through the rotating shaft and is used to connect to the supporting platform.

[0015] As a preferred technical solution of the present application, a plurality of equally spaced positioning holes are provided at the top edge of the support seat, and a plurality of fixing holes for installing the end cover are also provided at the bottom edge of the support seat.

[0016] The utility model also discloses CBCT equipment.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] First, the support base is installed on the frame of the equipment, and then the platform carrying the patient is installed on the top of the base. At this time, the base is driven to rotate by the output end of the equipment in cooperation with the driving member, and the base will drive the patient located on the carrying platform to perform scanning and shooting. The double-row angular contact ball bearings arranged between the support base and the upper end of the base can reduce the friction between the base and the support base, so that the base can rotate stably under the condition of bearing a large weight, thereby improving the rotation accuracy of the equipment. The deep groove ball bearings arranged between the support base and the lower end of the base can also reduce the friction between the base and the support base, thereby further improving the rotation accuracy of the equipment, solving the problem in the prior art that the rotating device of the equipment suffers from jamming friction due to the large weight it bears, and the structure is simple, which is not only easy to install, but also has low preparation cost and later maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structure diagram of the utility model;

[0020] Figure 2 It is a cross-sectional structural diagram of the utility model;

[0021] Figure 3 This is one of the exploded structural diagrams of the utility model;

[0022] Figure 4 This is the second explosion structure diagram of the utility model.

[0023] Indicated in the figure:

[0024] 10. Support seat; 110. Fixed plate; 120. Fixed cylinder; 130. Positioning hole; 20. Base; 210. Mounting seat; 220. Rotating shaft; 230. Mounting hole; 30. Double-row angular contact ball bearing; 40. Deep groove ball bearing; 50. Limiting boss; 60. Fixing hole; 70. Pulley; 710. Screw hole; 720. Positioning bolt. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0026] like Figures 1 to 4As shown, the present embodiment proposes a rotating device for CBCT equipment, including a support seat 10, a base 20 is inserted inside the support seat 10, and also includes a double-row angular contact ball bearing 30, a deep groove ball bearing 40 and a driving member, the double-row angular contact ball bearing 30 is movably arranged between the support seat 10 and the base 20, and the deep groove ball bearing 40 is movably arranged between the support seat 10 and the base 20, wherein the deep groove ball bearing 40 is located directly below the double-row angular contact ball bearing 30, and the driving member is arranged on the outside of the base 20, and is used to drive the base 20 to rotate along the axis of the support seat 10; when in use, the support seat 10 is first installed on the frame of the equipment, and then the platform for carrying the patient is installed on the top of the base 20, at this time, the base 20 is driven to rotate by the output end of the equipment in cooperation with the driving member, and the base 20 will drive the patient located on the carrying platform to rotate Because the double-row angular contact ball bearing 30 has high composite capacity and rigidity, it can work under high-speed operation and heavy-load conditions, and its friction coefficient is small and its rotation accuracy is high. Therefore, by setting the double-row angular contact ball bearing 30 between the support seat 10 and the upper end of the base 20, the friction between the base 20 and the support seat 10 can be reduced, so that the base 20 can still rotate stably under the condition of bearing a large weight, thereby improving the rotation accuracy of the equipment. Moreover, because the deep groove ball bearing 40 has reliable performance, simple structure, and is easy to install, it does not need to be lubricated again after it is fully lubricated. Moreover, its rotation accuracy is not only high, but also low in cost. Therefore, by setting the deep groove ball bearing 40 between the support seat 10 and the lower end of the base 20, the friction between the base 20 and the support seat 10 can also be reduced, thereby further improving the rotation accuracy of the equipment.

[0027] Specifically, the support seat 10 includes a fixed plate 110 and a fixed cylinder 120, and the fixed cylinder 120 is arranged in the middle position of the top of the fixed plate 110; in addition, the base 20 includes a mounting seat 210 and a rotating shaft 220, the mounting seat 210 is in the shape of a boss, and the rotating shaft 220 is arranged in the middle position of the bottom of the mounting seat 210, and the bottom of the mounting seat 210 is also provided with a reserved cavity for installing the fixed cylinder 120 and the double-row angular contact ball bearing 30; when installing the rotating device again, the fixed plate 110 can be first installed on the equipment frame, and then the double-row angular contact ball bearing 30 and the deep groove ball bearing 40 can be placed in the fixed cylinder 120 in turn, and the rotating shaft 220 at the bottom of the mounting seat 210 can be inserted into the fixed cylinder 120, so that the double-row angular contact ball bearing 30 and the deep groove ball bearing 40 are located between the fixed cylinder 120 and the rotating shaft 220 to complete the assembly of the rotating device. The structure is simple and easy to install, so it can save costs.

[0028] It should be noted that a limiting boss 50 is provided on the inner side wall of the fixed cylinder 120, an end cover is provided at the bottom of the fixed disk 110, the top end face of the double-row angular contact ball bearing 30 contacts the inner top wall of the mounting seat 210, the bottom end face of the double-row angular contact ball bearing 30 contacts the top of the limiting boss 50, and the top end face of the deep groove ball bearing 40 is connected to the bottom of the limiting boss 50, and the bottom end face of the deep groove ball bearing 40 contacts the top of the end cover; when in use, the deep groove ball bearing 40 can be first placed from the bottom of the fixed disk 110 into the fixed cylinder 120 The top of the deep groove ball bearing 40 is made to abut against the bottom of the limiting boss 50, and then the end cover is installed at the bottom of the fixed disk 110 to seal the fixed cylinder 120, and the bottom of the deep groove ball bearing 40 is supported and limited by the end cover, and then the double row angular contact ball bearing 30 is placed into the fixed cylinder 120 from above and the bottom of the double row angular contact ball bearing 30 is made to abut against the top of the limiting boss 50, and finally the rotating shaft 220 at the bottom of the mounting seat 210 is inserted into the fixed cylinder 120, so that the double row angular contact ball bearing 30 and the deep groove ball bearing 40 can be limited.

[0029] In order to drive the support platform installed on the base 20 for carrying the patient to rotate, the driving part includes a pulley 70, which is sleeved on the outside of the fixing cylinder 120, and a number of corresponding screw holes 710 are opened at the top edges of the pulley 70 and the mounting seat 210, and the internal threads of the screw holes 710 are connected with positioning bolts 720; by passing the positioning bolts 720 through the screw holes 710 on the surface of the mounting seat 210 and further screwing them into the screw holes 710 on the surface of the pulley 70, the pulley 70 and the mounting seat 210 can be fixed, and then the power is transmitted to the pulley 70 from the output end of the equipment, and the pulley 70 will drive the base 20 connected to it to rotate, thereby increasing the power for the rotation of the carrying platform.

[0030] In addition, in order to facilitate assembly or disassembly of the rotating device, a mounting hole 230 is opened in the middle of the top of the mounting seat 210 and passes through the rotating shaft 220 for connecting the supporting platform; the provided mounting hole 230 facilitates the installation of the supporting platform and the mounting seat 210.

[0031] A plurality of equally spaced positioning holes 130 are provided at the top edge of the support base 10, and a plurality of fixing holes 60 for mounting the end cover are also provided at the bottom edge of the support base 10; the positioning holes 130 facilitate the installation of the support base 10 and the equipment rack, while the fixing holes 60 facilitate the installation of the end cover and the bottom of the fixed plate 110.

[0032] The present application also discloses a CBCT device, which includes the above-mentioned rotating device, and the patient on the supporting platform is driven to rotate by the above-mentioned rotating device, and then the patient is scanned, photographed and examined by the CBCT device.

[0033] The working principle of the utility model is as follows: first, the support seat 10 is installed on the frame of the equipment, and then the platform for carrying the patient is installed on the top of the base 20, and then the power is transmitted to the pulley 70 from the output end of the equipment, and the pulley 70 will drive the base 20 connected thereto to rotate, thereby increasing the power for the rotation of the carrying platform. Because the double-row angular contact ball bearing 30 has high composite capacity and rigidity, it can work under high-speed operation and heavy-load conditions, and its friction coefficient is small and the rotation accuracy is high. Therefore, by setting the double-row angular contact ball bearing 30 between the support seat 10 and the upper end of the base 20, the friction between the base 20 and the support seat 10 can be reduced, so that the base 20 can still rotate stably under the condition of bearing a large weight, thereby improving the rotation accuracy of the equipment. Moreover, because the deep groove ball bearing 40 has reliable performance, simple structure, and is easy to install, it does not need to be lubricated again after it is fully lubricated, and its rotation accuracy is not only high, but also low in cost. Therefore, by setting the deep groove ball bearing 40 between the support seat 10 and the lower end of the base 20, the friction between the base 20 and the support seat 10 can also be reduced, thereby further improving the rotation accuracy of the equipment.

[0034] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A rotating device for CBCT equipment, comprising a support seat (10) and a base (20) inserted into the support seat (10), characterized in that: Also includes: A double-row angular contact ball bearing (30), wherein the double-row angular contact ball bearing (30) is movably arranged between the support seat (10) and the base (20); A deep groove ball bearing (40), wherein the deep groove ball bearing (40) is movably disposed between the support seat (10) and the base (20), and the deep groove ball bearing (40) is located directly below the double-row angular contact ball bearing (30); A driving member, the driving member is arranged outside the base (20) and is used to drive the base (20) to rotate along the axis of the support base (10).

2. The CBCT equipment rotating device according to claim 1, characterized in that: The support seat (10) comprises a fixing plate (110) and a fixing cylinder (120) arranged at a middle position on the top of the fixing plate (110).

3. The CBCT equipment rotating device according to claim 2, characterized in that: The base (20) comprises a boss-shaped mounting seat (210) and a rotating shaft (220) arranged at the middle of the bottom of the mounting seat (210); a reserved cavity for mounting a fixing cylinder (120) and a double-row angular contact ball bearing (30) is provided at the bottom of the mounting seat (210).

4. The CBCT equipment rotation device according to claim 2, characterized in that: The inner wall of the fixed cylinder (120) is provided with a limiting boss (50), the bottom of the fixed plate (110) is provided with an end cover, the end surfaces on both sides of the double-row angular contact ball bearing (30) are respectively in contact with the inner top wall of the mounting seat (210) and the top of the limiting boss (50), and the end surfaces on both sides of the deep groove ball bearing (40) are respectively in contact with the bottom of the limiting boss (50) and the top of the end cover.

5. The CBCT equipment rotating device according to claim 1, characterized in that: The driving member comprises a pulley (70), the pulley (70) being sleeved on the outside of the fixing cylinder (120), the pulley (70) and the top edge of the mounting seat (210) being provided with a plurality of corresponding screw holes (710), and the screw holes (710) being internally threadedly connected with positioning bolts (720).

6. The CBCT equipment rotating device according to claim 3, characterized in that: A mounting hole (230) penetrating the rotating shaft (220) and used for connecting to the bearing platform is provided in the middle of the top of the mounting seat (210).

7. The CBCT equipment rotating device according to claim 4, characterized in that: A plurality of equidistantly distributed positioning holes (130) are provided at the top edge of the support seat (10), and a plurality of fixing holes (60) for mounting end covers are also provided at the bottom edge of the support seat (10).

8. A CBCT device, characterized in that: A rotating device for CBCT equipment comprising any one of claims 1-7.

Images