CN106695681B - A kind of gradient coil mounting tool - Google Patents

Abstract

The invention discloses a kind of gradient coil mounting tool, including ontology, the ontology includes several sliding rails being detachably connected and the support sliding rail and several supporting racks for being detachably connected with the sliding rail, and support frame as described above is height-adjustable；The carriage of setting support gradient coil internal ring wall on the sliding rail, the carriage includes delivery board, and being arranged on the delivery board makes the first idler wheel that it is moved back and forth along the sliding rail；The second idler wheel that the vertical opposite end setting in direction contacts at gradient coil internal ring wall is moved on the delivery board.The invention uses dismountable sliding rail and supporting rack, and slidable delivery board is arranged on sliding rail, hydraulicefficiency elevation structure is arranged on supporting rack, convenient for disassembly and assembly, storage easy to carry, endurance is greatly, it can be realized using less manpower and gradient coil is installed to magnet, and rotate in place.

Description

A gradient coil installation tool

technical field

The invention relates to the field of gradient coil installation tooling, in particular, the invention relates to a gradient coil installation tooling.

Background technique

The gradient coil is one of the components of the magnetic resonance imaging equipment, more specifically, one of the coil systems laid on the magnet of the magnetic resonance imaging equipment, which is used to add another gradient magnetic field that increases (or decreases) according to the location on the main magnetic field the coil. In actual work, the gradient coil system must provide at least three kinds of gradient magnetic fields, namely slice selection gradient, frequency encoding gradient and phase encoding gradient.

The commonly used installation tooling for gradient coils is very heavy, and the weight can reach several tons. The transportation is extremely inconvenient, and the gradient coils are easily damaged during transportation. Big potential safety hazard; for gradient coils of different sizes, different delivery tools need to be formulated, the delivery cost is high, and the general delivery tools take up a lot of space and are not easy to carry and transport.

Contents of the invention

The main technical problem to be solved by the present invention is to provide a gradient coil installation tool. The invention adopts a detachable slide rail and a support frame. A slidable conveying plate is provided on the slide rail, and a hydraulic lifting mechanism is provided on the support frame, which is convenient for disassembly and assembly. , It is easy to carry and store, and has a large bearing capacity. Two people can install the gradient coil to the magnet, and the angle can be adjusted and rotated in place.

The technical solution adopted by the present invention to solve the above technical problems is: the body includes several slide rails detachably connected, and several support frames supporting the slide rails and detachably connected with the slide rails. The frame height can be adjusted; the slide rail is provided with a slide device supporting the inner ring wall of the gradient coil, and the slide device includes a conveying plate, and the conveying plate is provided with a first roller to reciprocate along the slide rail; The opposite ends perpendicular to the moving direction of the conveying plate are provided with second rollers that are in contact with the inner ring wall of the gradient coil.

Through the above technical scheme, the support frame supports the slide rail to a certain height, which is convenient for placing the gradient coil; the conveying plate is arranged on the slide rail, and the first roller is arranged on the conveying plate, which facilitates the reciprocating movement of the conveying plate on the slide rail; the opposite ends of the conveying plate The second roller is set to support the gradient coil and drive the gradient coil to move on the slide rail. At the same time, the gradient coil can rotate freely around its own axis with the help of the tooling mechanism, which is convenient for the operator to adjust the installation angle of the gradient coil; The height of the support frame is adjustable, which is convenient to adjust the height of the slide rail, thereby adjusting the installation height of the gradient coil, so that the gradient coil can be positioned accurately; the second roller is set against the inner ring wall of the gradient coil, which can adapt to gradient coils of different sizes and save transportation Cost: detachable setting between the slide rail and the support frame, and detachable setting between several slide rails, easy to disassemble, convenient to carry and store, large bearing capacity, and the gradient coil can be installed on the magnet and rotated with less manpower in place.

Further, the slide rail includes horizontal beams and vertical beams integrally arranged, and the conveying plate slides on the upper surface of the horizontal beams.

Through the above technical scheme, the setting of the horizontal beam increases the contact area between the conveying plate and the slide rail, and improves the stability of the conveying plate on the slide rail; the setting of the vertical beam strengthens the support rigidity of the horizontal beam, making it difficult for the horizontal beam to The occurrence of bending fracture ensures the normal delivery of the gradient coil and improves the service life of the horizontal beam.

Further, the conveying board is provided with limiting parts on both sides of the horizontal beam, and the limiting parts include limiting columns that interfere with the two side walls of the horizontal beam, and the limiting columns are set on the limiting columns. The limiting boss on the bottom surface of the horizontal beam.

Through the above technical scheme, the setting of the limiting part is used to limit the movement of the conveying plate in other directions except the direction of the slide rail, and improve stability; The rail moves in other directions, and the structure is simple; the limit post is provided with a limit boss that conflicts with the lower surface of the horizontal beam, which avoids the danger of the conveyor plate tilting or even turning over on the slide rail. The center of gravity is low and it is not easy to dump. The movement stability of the conveyor plate on the slide rail is improved.

Further, the ends of the slide rails are provided with a connecting plate that fixedly connects the two slide rails, and the connecting plate is provided with mounting holes.

Through the above technical scheme, the setting of the connecting plate is used to connect the two slide rails to obtain an extended slide rail. The structure is simple, and it is convenient to transport the gradient coil to a longer distance at one time and improve the work efficiency; the slide rail does not use It can be disassembled into small sections, which is convenient for storage and carrying; the setting of the installation hole can be used to connect the two sections of slide rails by bolt connection, the connection is stable, the disassembly and assembly are convenient, and the work efficiency is improved.

Further, the conveying board includes vertically intersecting installation boards, and the vertically intersecting installation boards form several grids, and the first rollers are installed in the grids.

Through the above technical solution, the conveying board includes vertically intersecting mounting boards, which has a simple structure and strong bearing capacity, and the first roller is arranged in a grid, which has a compact structure, saves space, and protects the first roller.

Further, several lightening industrial holes are opened on the vertical beam.

Through the above technical solution, several weight-reducing industrial holes are provided on the vertical beam, which saves manufacturing cost and reduces the weight of the slide rail, thereby reducing the support burden of the support frame and being easy to carry.

Further, the support frame includes a hydraulic lifting mechanism and a supporting foot; the hydraulic lifting mechanism includes a cylinder, and the supporting foot includes three or more struts that are uniformly arranged on the cylinder in a circumferential direction.

Through the above technical solution, the setting of the hydraulic lifting mechanism is used to adjust the height of the slide rail, and further adjust the height of the gradient coil, so that the gradient coil can be positioned accurately.

Further, the upper ends of the struts are connected to the cylinder body, and the lower ends of the struts are connected in pairs through straight rods.

Through the above technical solution, the lower ends of the struts are connected in pairs by straight rods, which avoids changes in the angle of the struts and avoids bending deformation of the struts, improves the rigidity of the struts, and further improves the bearing capacity and stability of the legs.

Further, universal wheels are provided at the bottom of the support frame.

Through the above technical proposal, universal wheels are arranged at the bottom of the support frame, which facilitates the movement of the support frame and improves work efficiency.

In summary, the beneficial effects of the present invention are:

(1) The conveyor plate is used to slide on the slide rail to drive the gradient coil to move along the slide rail. The structure is simple and the operation is convenient. The conveyor plate and the gradient coil are connected by rolling with the second roller, so that the gradient coil can easily rotate around its own axis. , it is convenient for the staff to adjust the angle of the gradient coil; the first roller is rollingly connected between the conveying plate and the slide rail, the movement resistance is small, and the work efficiency is improved; the second roller is in contact with the inner ring wall of the gradient coil, and is not affected by the gradient coil The size is limited, so that gradient coils of different sizes can be transported, saving transportation costs.

(2) The support frame adopts a hydraulic lifting mechanism to adjust the height of the slide rail, which is convenient for precise positioning of the gradient coil, improves the installation efficiency of the gradient coil, and has good stability.

(3) The bottom of the pole is connected by two straight poles to increase the bearing capacity of the pole and thus increase the service life of the legs; the setting of the universal wheel facilitates the movement of the support frame, reduces manual labor and improves work efficiency.

Description of drawings

Fig. 1 is the structural representation of body in the embodiment;

Fig. 2 is a schematic diagram of the connection between the body and the gradient coil in the embodiment;

Fig. 3 is a connection plan view of the body and the gradient coil in the embodiment;

Fig. 4 is a structural schematic diagram of the conveying plate in the embodiment.

In the figure, the names of parts corresponding to each reference mark are: 1. Body; 2. Slide rail; 21. Horizontal beam; 22. Vertical beam; 221. Weight reduction industrial hole; 23. Connecting plate; 231. Mounting hole; 3 , support frame; 4, conveying plate; 41, installation plate; 42, grid; 43, first roller; 44, second roller; 45, limit part; 451, limit column; 452, limit boss; 5. Hydraulic lifting mechanism; 51. Cylinder body; 52. Piston; 53. Lifting head; 54. Lever plug; 55. First connection end; 56. Second connection end; , universal wheel; 7, gradient coil; 8, straight rod.

Detailed ways

In order to better understand the content of the present invention, further description will be made below in conjunction with specific embodiments and accompanying drawings. It should be understood that these examples are only used to further illustrate the present invention, not to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make some non-essential changes or adjustments to the present invention, which still belong to the protection scope of the present invention.

Example

A gradient coil installation tool, referring to Figure 1, includes a body 1, the body 1 includes a number of slide rails 2 and a number of support frames 3; The section is "I"-shaped; the end of the slide rail 2 is provided with a connecting plate 23, which is perpendicular to the horizontal beam 21 and the vertical beam 22, and the connecting plate 23 is provided with a mounting hole 231 for connecting the two sections of the slide rail. 2 is fixedly connected so as to lengthen the length of the slide rail 2, which can be fixed by means of bolt connection to facilitate disassembly and assembly; a number of weight-reducing industrial holes 221 are provided on the vertical beam 22 to save manufacturing materials, reduce the weight of the slide rail 2, and facilitate handling .

Referring to Fig. 3 and Fig. 4, slide device is set on horizontal crossbeam 21, and slide device comprises conveying plate 4, and the profile of conveying plate 4 is preferably square, and conveying plate 4 is integrally formed by several mounting plates 41 that vertically intersects, and vertically intersects Mounting plate 41 forms several grids 42, and first roller 43 is provided with in grid 42, and first roller 43 is in contact with the upper surface of horizontal crossbeam 21, is used for supporting conveying plate 4, makes conveying plate 4 can be on horizontal crossbeam simultaneously. 21 on reciprocating motion. A limiter 45 is set on the conveying plate 4. The limiter 45 includes a limiter column 451 that is in contact with the two side walls of the horizontal beam 21. Two limiter columns 451 are arranged on both sides of the horizontal beam 21. The lower end of the limiter column 451 Set the limit boss 452 that conflicts with the lower surface of the horizontal beam 21; the setting of the limit column 451 makes the conveying plate 4 only move along the horizontal beam 21 without deviation, and the setting of the limit boss 452 makes the conveying plate 4 in During the movement, there will be no rollover or even overturning, that is, there will be no separation from the horizontal beam 21 , thereby improving the connection stability between the conveying plate 4 and the horizontal beam 21 and ensuring the normal delivery of the gradient coil 7 .

Second rollers 44 are arranged on the left and right sides of the moving direction of the conveying plate 4, and are in contact with the inner ring wall of the gradient coil 7 to support the gradient coil 7. At the same time, the setting of the second roller 44 makes the gradient coil 7 easy to wind. Self-axis rotation, easy to adjust the angle.

The support frame 3 is used to support the slide rail 2. The support frame 3 includes a hydraulic lifting mechanism 5 and a foot 6. The hydraulic lifting mechanism 5 includes a cylinder body 51, a piston 52 and a lever plug 54 are arranged on the cylinder body 51, and a jacking head is arranged on the top of the piston 52. 53, the jacking head 53 is detachably connected to the lower part of the slide rail 2, preferably bolted; the lever inserted in the lever plug 54 is used for the user to operate to make the piston 52 go up and down, thereby adjusting the height of the slide rail 2, and then adjusting the gradient The height of the coil 7; the outer wall of the cylinder body 51 is evenly provided with the first connection end 55 and the second connection end 56 in the circumferential direction, which are arranged in two layers, the upper layer is three first connection ends 55, and the lower layer is three second connection ends 56 , and directly below each first connecting end 55 corresponds to a second connecting end 56 , and the extending length of the first connecting end 55 is smaller than the extending length of the second connecting end 56 .

Support foot 6 comprises 3 struts 61 that are arranged on the first connecting end 55 and the second connecting end 56, and the upper end of each strut 61 is bolted with the first connecting end 55, and the middle upper section of strut 61 is connected with this second connecting end simultaneously. The second connecting end 56 directly below the connecting end 55 is bolted, so that the struts 61 are spread out at a certain angle to ensure the support stability of the legs 6; the lower ends of the struts 61 are connected in pairs by straight rods , improve the support strength of the strut 61, so that the angle of the strut 61 is not easy to change, and also makes the strut 61 difficult to bend and deform, thereby improving the supporting capacity of the leg 6; a universal wheel 62 is set at the lower end of each strut 61 , it is convenient to move the support frame 3 and save working time.

Referring to Fig. 2, when working, the multi-section slide rail 2 is connected by bolts at the connecting plate 23 to form a longer slide rail 2, and a plurality of supporting frames 3 are used to support the slide rail 2 to an appropriate height, and the gradient coil 7 is passed through passing through the slide rail 2, and placed on the conveying plate 4 on the slide rail 2, the second roller 44 of the conveying plate 4 is in rolling contact with the inner ring wall of the gradient coil 7, and the gradient coil 7 is not in contact with the ground; the support frame 3 and the The detachable connection between the slide rails 2 is convenient for disassembly and assembly, and improves work efficiency; by adjusting the hydraulic lifting mechanism 5, the height of the gradient coil 7 is adjusted to make the gradient coil 7 accurately positioned; when it is not working, or the slide rail 2 needs to be moved and the support frame 3, the multi-section slide rail 2 is removed, and the support frame 3 supporting the slide rail 2 is removed, so as to facilitate storage and transportation.

As described above, the present invention can be better implemented.

Claims (9)

1. a kind of gradient coil mounting tool, including ontology (1), which is characterized in that the ontology (1) includes being detachably connected Several sliding rails (2) and several supporting racks (3) for supporting the sliding rail (2) and being detachably connected with the sliding rail (2), Support frame as described above (3) is height-adjustable；The carriage of setting support gradient coil (7) internal ring wall, described on the sliding rail (2) Carriage includes delivery board (4), and being arranged on the delivery board (4) makes the first idler wheel that it is moved back and forth along the sliding rail (2) (43)；The vertical opposite end setting in direction is moved on the delivery board (4) contacts at the of gradient coil (7) internal ring wall Second wheel (44).

2. a kind of gradient coil mounting tool according to claim 1, which is characterized in that the sliding rail (2) includes one The horizontal gird (21) and vertical crossbeam (22) of setting, the delivery board (4) is in the upper surface slide of the horizontal gird (21).

3. a kind of gradient coil mounting tool according to claim 2, which is characterized in that be located on the delivery board (4) The both sides of the horizontal gird (21) are respectively provided with limiting section (45), and the limiting section (45) includes contacting at the horizontal gird (21) limited post (451) of two side, on the limited post (451) setting contact at the horizontal gird (21) bottom surface Positive stop lug boss (452).

4. a kind of gradient coil mounting tool according to claim 1, which is characterized in that sliding rail (2) end set It is fixedly connected with the connecting plate (23) of two sliding rails (2), mounting hole (231) is opened up on the connecting plate (23).

5. a kind of gradient coil mounting tool according to claim 1, which is characterized in that the delivery board (4) includes hanging down The mounting plate (41) directly intersected, the mounting plate (41) to intersect vertically form several grids (42), pacify in the grid (42) Fill first idler wheel (43).

6. a kind of gradient coil mounting tool according to claim 2, which is characterized in that opened on the vertical crossbeam (22) If several loss of weight industry hole (221).

7. a kind of gradient coil mounting tool according to claim 1, which is characterized in that support frame as described above (3) includes liquid Press elevating mechanism (5) and stabilizer blade (6)；The hydraulicefficiency elevation structure (5) includes cylinder body (51), and the stabilizer blade (6) includes three Or three or more be arranged circumferentially in the strut (61) on the cylinder body (51).

8. a kind of gradient coil mounting tool according to claim 7, which is characterized in that strut (61) upper end and institute It states cylinder body (51) to be connected, strut (61) lower end is connected two-by-two by straight-bar (8).

9. a kind of gradient coil mounting tool according to claim 1, which is characterized in that support frame as described above (3) bottom is set Set universal wheel (62).