Leveling device and CT imaging platform

Abstract

The utility model relates to a leveling device and a CT imaging platform, the leveling device comprises a worm and gear lead screw lifter, a right-angle commutator and a bearing footing, an input shaft of the right-angle commutator is in transmission connection with a driving element, an output shaft of the right-angle commutator is in transmission connection with a worm of the worm and gear lead screw lifter, and the bearing footing is in transmission connection with the worm of the worm and gear lead screw lifter. A hemispherical bearing block in clearance fit with the bearing bottom foot is arranged in the bearing bottom foot, the hemispherical bearing block is fixedly connected with a lead screw of the worm and gear lead screw lifter, and the technical problems that in the prior art, the leveling precision is uncontrollable, and overall movement flexibility is not achieved can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical imaging equipment, and in particular relates to a leveling device and a CT imaging platform. Background Art

[0002] With the rapid development of science and technology, people have higher and higher requirements for the high precision of instrumentation and equipment, especially the requirements for horizontality. In particular, physical science experiments, civil engineering surveying and clinical medicine often require a fairly accurate horizontal state. For example, in the radiotherapy technology in the field of clinical medicine, the positioning of the CT imaging platform requires very high precision, which directly affects the effect of radiotherapy. However, there are three main existing horizontal adjustment technologies: 1. Leveling with inclined irons at the bottom of the platform requires operators to have a high level of professional skills and rich judgment experience, and the accuracy is uncontrollable; 2. Leveling with machine-made iron pads, the number of iron pads is large and in bulk, the weight of the parts is large, and the overall movement flexibility is not available; 3. Leveling with adjustable feet, the adjustable foot operation point is at the bottom of the equipment, the operation is not friendly, the leveling accuracy is not high, and for heavy equipment that is frequently used, the failure rate of the anchor bolts is high. Utility Model Content

[0003] In view of various deficiencies in the prior art, a leveling device and a CT imaging platform are proposed to solve the technical problems in the prior art that the leveling accuracy is uncontrollable and the overall movement flexibility is not possessed.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] In the first aspect, the utility model provides a leveling device, including a worm gear screw lifter, a right-angle commutator and a load-bearing base, the input shaft of the right-angle commutator is transmission-connected to a driving element, the output shaft of the right-angle commutator is transmission-connected to a worm of the worm gear screw lifter, the interior of the load-bearing base is provided with a hemispherical load-bearing block which is clearance-matched with the hemispherical load-bearing block, and the hemispherical load-bearing block is fixedly connected to the screw of the worm gear screw lifter.

[0006] The technical solution is further configured such that the right-angle commutator is provided with two stages, the input shaft of the front-stage right-angle commutator is transmission-connected to the driving element, and the input shaft and the lead screw of the front-stage right-angle commutator are both arranged in the vertical direction, and the output shaft of the rear-stage right-angle commutator is arranged in the horizontal direction and is transmission-connected to the worm gear through a coupling.

[0007] The technical solution is further configured as follows: the driving element includes a handwheel and a transmission shaft, the handwheel is fixed on the transmission shaft, the transmission shaft is transmission-connected to the input shaft of the preceding right-angle commutator, and the handwheel is located above the right-angle commutator.

[0008] The technical solution is further configured such that a position counter is provided on the transmission shaft.

[0009] The technical solution is further configured as follows: a displacement foot is provided on the periphery of the load-bearing foot, a mounting groove for mounting the load-bearing foot is provided inside the displacement foot, and a connecting piece is provided between the displacement foot and the load-bearing foot.

[0010] The technical solution is further configured such that a solid lubricant is provided between the mounting groove and the load-bearing foot.

[0011] In a second aspect, the utility model provides a CT imaging platform, including a loading platform, on which a plurality of leveling devices are provided, the load-bearing foot is located below the loading platform, and the driving element is located above the loading platform.

[0012] The technical solution is further configured that the loading platform is further provided with a supporting foot, and a wire rope vibration isolator is provided between the supporting foot and the loading platform.

[0013] The beneficial effects of the utility model are:

[0014] By setting up a worm gear screw lifter and a right-angle commutator, the driving element is transferred to the top of the loading platform to facilitate the leveling operation. The load-bearing base is driven to rise and fall through the rotation of the driving element. The lifting displacement is precisely controllable to achieve accurate leveling and adapt to various complex ground surfaces. At the same time, the leveling device is installed on the loading platform to facilitate overall movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a leveling device in an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 Middle AA section view;

[0017] Figure 3 is a schematic diagram of a CT imaging platform in an embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the assembly of the support foot and the wire rope vibration isolator in the embodiment of the utility model;

[0019] Figure 5 is a schematic diagram of an auxiliary support foot in an embodiment of the utility model;

[0020] Figure 6 yes Figure 5 Middle BB section view.

[0021] In the attached drawings: 1-worm gear screw lifter, 2-right angle commutator, 3-drive shaft, 4-handwheel, 5-handle, 6-displacement pad, 7-load-bearing base, 8-hemispherical load-bearing block, 9-screw, 10-carrying platform, 11-lifting ring, 12-support foot, 13-auxiliary support foot, 14-wire rope isolator, 15-connecting block, 16-inner support screw, 17-outer support screw, 18-screw outer barrel, 19-screw handwheel, 20-coupling, 21-position counter. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0023] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0024] According to an embodiment of the utility model, a leveling device is provided. Figure 1 and Figure 2 , including a worm gear screw lifter 1, a right-angle commutator 2 and a load-bearing base 7, wherein the input shaft of the right-angle commutator 2 is transmission-connected to the driving element, the output shaft of the right-angle commutator 2 is transmission-connected to the worm of the worm gear screw lifter, and the interior of the load-bearing base 7 is provided with a hemispherical load-bearing block 8 which is clearance-matched therewith, and the hemispherical load-bearing block 8 is fixedly connected to the screw 9 of the worm gear screw lifter.

[0025] It should be noted that by providing a worm gear screw lifter 1 and a right-angle commutator 2, the driving element is transferred to the top of the operating space, which is convenient for leveling operations. The load-bearing base 7 is driven to rise and fall by the rotation of the driving element, and the lifting displacement is precisely controllable to achieve precise leveling and adapt to various complex ground surfaces.

[0026] In the leveling device of this embodiment, see Figure 1 and Figure 2 The right-angle commutator 2 is provided with two stages, the input shaft of the front-stage right-angle commutator is connected to the driving element, and the input shaft of the front-stage right-angle commutator and the lead screw 9 are arranged in the vertical direction, and the output shaft of the rear-stage right-angle commutator is arranged in the horizontal direction and connected to the worm gear through the coupling 20.

[0027] It should be noted that the driving element provides power, which is transmitted to the worm, worm wheel and lead screw 9 through the two-stage right-angle commutator 2 to realize the lifting of the load-bearing foot 7. Among them, the worm wheel and lead screw lifter 1 is a mature existing technology and will not be described here.

[0028] In the leveling device of this embodiment, see Figure 1 and Figure 2 The driving element includes a hand wheel 4 and a transmission shaft 3. The transmission shaft 3 is arranged along the vertical direction. The hand wheel 4 is fixed on the transmission shaft 3. The hand wheel 4 is provided with a handle 5. The hand wheel 4 is rotated by the handle 5. The transmission shaft 3 is connected to the input shaft of the preceding right-angle commutator by transmission. The hand wheel 4 is located above the right-angle commutator 2 to facilitate the leveling operation.

[0029] Specifically, a position counter 21 is provided on the transmission shaft 3. Each time the hand wheel 4 rotates one circle, the load-bearing foot 7 is lifted or lowered by a certain displacement. By counting by the position counter 21, the lifting or lowering displacement of the load-bearing foot 7 can be accurately controlled to achieve accurate leveling.

[0030] In the leveling device of this embodiment, see Figure 1 and Figure 2 A displacement pad 6 is provided on the periphery of the load-bearing foot 7, a mounting groove for mounting the load-bearing foot 7 is provided inside the displacement pad 6, a connecting piece is provided between the displacement pad 6 and the load-bearing foot 7, and a solid lubricant is provided between the mounting groove and the load-bearing foot 7.

[0031] It should be noted that the use of the hemispherical load-bearing block 8 in combination with the solid lubricant can effectively reduce the lateral load generated by the load-bearing foot 7 during the lifting process.

[0032] According to an embodiment of the present utility model, a CT imaging platform is provided. Figures 1 to 3 , including a loading platform 10, on which a plurality of leveling devices are provided, the load-bearing base is located below the loading platform 10, and the driving element is located above the loading platform 10.

[0033] It should be noted that several leveling devices are located on different straight lines to improve the stability of the loading platform 10. The driving element is transferred to the upper part of the loading platform 10 to facilitate the leveling operation. At the same time, the leveling device is installed on the loading platform 10 to facilitate the overall movement. In addition, a lifting ring 11 is provided on the loading platform 10 to facilitate movement.

[0034] Preferably, three leveling devices are provided, and the three leveling devices form a triangle.

[0035] In the CT imaging platform of this embodiment, see Figures 1 to 4The loading platform 10 is also provided with a supporting foot 12 , and a wire rope vibration isolator 14 is provided between the supporting foot 12 and the loading platform 10 .

[0036] Specifically, a connecting block 15 is provided on the loading platform 10 , and the wire rope vibration isolator 14 is located between the connecting block 15 and the supporting foot 12 .

[0037] When in use, the handle 5 is operated to adjust the worm gear screw lifter 1, and the displacement foot 6 moves down to touch the ground to lift the loading platform 10, and at the same time, the support foot 12 is out of contact with the ground. The various leveling devices are used together to ensure the high-precision levelness of the loading platform 10. When the loading platform 10 moves, the handle 5 is operated to adjust the worm gear screw lifter 1, and the displacement foot 6 moves up. At this time, the support foot 12 with the wire rope vibration isolator 14 contacts the ground to reduce the vibration impact of transportation.

[0038] In the CT imaging platform of this embodiment, see Figures 1 to 6 , the loading platform 10 is also provided with an auxiliary support foot 13, and a support screw assembly is provided between the auxiliary support foot 13 and the loading platform 10. The support screw assembly includes an inner support screw 16, an outer support screw 17 and a screw outer barrel 18 which are sequentially sleeved from the inside to the outside, the screw outer barrel 18 is fixedly connected to the loading platform 10, the inner support screw 16 and the outer support screw 17 are threadedly driven, a screw hand wheel 19 is fixedly connected to the upper part of the inner support screw 16, and a hemispherical auxiliary load-bearing block is fixedly connected to the lower part of the outer support screw 17, and the hemispherical auxiliary load-bearing block is located inside the auxiliary support foot 13 and the two are clearance-matched. By rotating the screw hand wheel 19, the hemispherical auxiliary load-bearing block and the auxiliary support foot 13 are driven to rise and fall, thereby realizing the auxiliary support of the loading platform 10.

[0039] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A leveling device, characterized in that: It includes a worm gear screw lifter, a right-angle commutator and a load-bearing base. The input shaft of the right-angle commutator is transmission-connected to a driving element, the output shaft of the right-angle commutator is transmission-connected to a worm of the worm gear screw lifter, a hemispherical load-bearing block which is clearance-matched with the load-bearing base is provided inside the load-bearing base, and the hemispherical load-bearing block is fixedly connected to the screw of the worm gear screw lifter.

2. The leveling device according to claim 1, characterized in that: The right-angle commutator is provided with two stages, the input shaft of the front-stage right-angle commutator is transmission-connected with the driving element, and the input shaft and the lead screw of the front-stage right-angle commutator are arranged in the vertical direction, and the output shaft of the rear-stage right-angle commutator is arranged in the horizontal direction and transmission-connected with the worm through a coupling.

3. The leveling device according to claim 2, characterized in that: The driving element comprises a handwheel and a transmission shaft, wherein the handwheel is fixedly mounted on the transmission shaft, the transmission shaft is transmission-connected to the input shaft of the preceding right-angle commutator, and the handwheel is located above the right-angle commutator.

4. The leveling device according to claim 3, characterized in that: A position counter is arranged on the transmission shaft.

5. The leveling device according to claim 1, characterized in that: A displacement pad is arranged on the periphery of the load-bearing foot, a mounting groove for mounting the load-bearing foot is arranged inside the displacement pad, and a connecting piece is arranged between the displacement pad and the load-bearing foot.

6. The leveling device according to claim 5, characterized in that: A solid lubricant is provided between the mounting groove and the load-bearing foot.

7. A CT imaging platform, characterized in that: It comprises a loading platform, on which are disposed a plurality of leveling devices according to any one of claims 1 to 6, the load-bearing foot being located below the loading platform, and the driving element being located above the loading platform.

8. The CT imaging platform according to claim 7, characterized in that: The loading platform is also provided with supporting feet, and a wire rope vibration isolator is provided between the supporting feet and the loading platform.

Images