Motor structure of circulating nitrogen compressor

Abstract

The utility model relates to the technical field of circulating nitrogen compressors, in particular to a motor structure of a circulating nitrogen compressor, which adopts the technical scheme that the motor structure comprises a base, a shell cover, a bolt, a shell and a screw rod, screw grooves are respectively formed in four corners of the side surface of the shell, and round holes are formed in the shell cover in a rectangular array manner; the four bolts penetrate through the four round holes to be in meshed connection with the four screw grooves correspondingly, a motor element is installed in the shell, a supporting frame is welded to the bottom of the shell, fixing plates are symmetrically welded to the top of the base, screw holes are formed in the two fixing plates correspondingly, and the two screws are in meshed connection with the two screw holes correspondingly. And limiting frames are rotationally mounted at the opposite ends of the two screw rods correspondingly. The motor shell has the advantages that the shell cover and the shell can be conveniently separated, and motor elements in the shell can be overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating nitrogen compressors, in particular to a circulating nitrogen compressor motor structure. Background Art

[0002] The principle of the circulating nitrogen compressor is to pressurize liquid nitrogen to turn it into high-pressure gas, then cool it through a heat exchanger, and then return it to the compressor for recycling. When the circulating nitrogen compressor is in operation, a motor is required to drive the structure to rotate.

[0003] The internal structure of the motor is mainly composed of the stator, stator winding, rotor, rotor winding and other structures. The motor needs regular or periodic maintenance to prevent failure or shutdown and extend its service life. The maintenance cycle of the motor depends on its type and operating conditions. When inspecting the motor, not only its appearance but also its internal components need to be inspected. The existing motor casing is fixed with screws, bolts and other tools. When disassembling, different types of wrenches, screwdrivers, hexagon sockets and other tools are required, which is more troublesome. Utility Model Content

[0004] The utility model aims to provide a circulating nitrogen compressor motor structure, which has the advantage of conveniently separating the shell cover from the shell and overhauling the motor components inside the shell, thereby solving the problem that the circulating nitrogen compressor motor is inconvenient to disassemble and overhaul its internal components.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circulating nitrogen compressor motor structure, including a base, a shell cover, bolts, a shell and a screw rod, wherein screw grooves are respectively opened at the four corners of the side of the shell, and the shell cover is opened with circular holes in a rectangular array, and the four bolts are respectively passed through the four circular holes and meshed with the four screw grooves. A motor component is installed inside the shell, a support frame is welded to the bottom of the shell, and a fixing plate is symmetrically welded to the top of the base, and the two fixing plates are respectively opened with screw holes, and the two screw rods are respectively meshed with the two screw holes, and the opposite ends of the two screws are respectively rotatably installed with limit frames.

[0006] When using a circulating nitrogen compressor motor structure in the technical solution, the bottom of the support frame at the bottom of the shell is inserted into the fixed groove at the top of the base, and two hand wheels are used to rotate the two screws. The two screws rotate and move in the screw holes of the two fixed plates, and the two screws push the two limit frames to move in opposite directions. The two limit frames clamp and fix the support frame, and use screws and other tools to fix the base to the structure reserved for the circulating nitrogen compressor through the fixing holes of the base, and fix the end of the connecting rod away from the shell to the transmission structure of the circulating nitrogen compressor. The power cord is inserted into the connector, and the motor element is energized. The motor element drives the connecting rod to rotate, and the connecting rod transmits the power to the circulating nitrogen compressor. When the motor element inside the shell needs to be repaired, four fixing plates are used to screw out the four bolts from the screw grooves on the side of the shell in turn, so that the shell cover can be separated from the shell, and the motor element inside the shell can be taken out.

[0007] Preferably, a fixing plate is installed at one end of the bolt away from the housing, and the four fixing plates are parallel to the housing cover. The fixing plates are used to facilitate the rotation of the bolt.

[0008] Preferably, a connector is embedded in the top of the housing and can be connected to a power line.

[0009] Preferably, a connecting rod is installed on the side of the shell away from the shell cover. The motor element drives the connecting rod to rotate, the connecting rod is fixedly connected to the transmission structure of the circulating nitrogen compressor, and the connecting rod drives the internal structure of the circulating nitrogen compressor to rotate.

[0010] Preferably, a fixing groove is provided on the top of the base on the opposite side of the two fixing plates, and the bottom of the support frame is inserted into the fixing groove. The fixing groove limits the support frame.

[0011] Preferably, a hand wheel is welded on the opposite sides of the two screw rods, and a distance is left between the two hand wheels and the top of the base. The hand wheel is used to conveniently rotate the screw rod, and the hand wheel will not interfere with the base when rotating.

[0012] Preferably, the base is provided with fixing holes in a rectangular array, and the fixing holes penetrate the upper and lower ends of the base. The base is fixed to the structure reserved for the circulating nitrogen compressor through the fixing holes using tools such as screws.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a fixing plate, a screw rod and a screw groove. When it is necessary to inspect and repair the motor components inside the shell, four fixing plates are used to sequentially screw out four bolts from the screw grooves on the sides of the shell, so that the shell cover can be separated from the shell, and the motor components inside the shell can be taken out for inspection and repair, thereby achieving the effect of conveniently separating the shell cover from the shell and inspecting the motor components inside the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 For the utility model Figure 2 Zoom in on the structural diagram.

[0018] In the figure: 1. base; 2. hand wheel; 3. fixing plate; 4. support frame; 5. fixing plate; 6. shell cover; 7. bolt; 8. connector; 9. shell; 10. connecting rod; 11. limit frame; 12. screw rod; 13. motor element; 14. screw hole; 15. fixing hole; 16. fixing groove; 17. round hole; 18. screw groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Embodiment 1

[0022] like Figure 1-3 As shown, a circulating nitrogen compressor motor structure proposed by the utility model includes a base 1, a shell cover 6, a bolt 7, a shell 9 and a screw 12. Screw grooves 18 are respectively opened at the four corners of the side of the shell 9. The shell cover 6 is opened with round holes 17 in a rectangular array. Four bolts 7 pass through the four round holes 17 and are meshed and connected with the four screw grooves 18. The ends of the bolts 7 facing away from the shell 9 are respectively installed with fixed disks 5. The four fixed disks 5 are parallel to the shell cover 6. A motor element 13 is installed inside the shell 9. A connector 8 is embedded and installed on the top of the shell 9. The side of the shell 9 facing away from the shell cover 6 is turned to install A connecting rod 10, a support frame 4 is welded to the bottom of the shell 9, and a fixing plate 3 is symmetrically welded to the top of the base 1. The two fixing plates 3 are respectively provided with screw holes 14, and the two screws 12 are respectively engaged with the two screw holes 14. The opposite ends of the two screws 12 are rotatably installed with limit frames 11, and the two screws 12 are respectively welded with hand wheels 2 on the opposite sides. A fixing groove 16 is provided on the top of the base 1 on the opposite side of the two fixing plates 3, and the bottom of the support frame 4 is inserted into the fixing groove 16. The base 1 is provided with fixing holes 15 in a rectangular array, and the fixing holes 15 pass through the upper and lower ends of the base 1.

[0023] In this embodiment, the bottom of the support frame 4 at the bottom of the shell 9 is inserted into the fixing groove 16 at the top of the base 1, and two hand wheels 2 are used to rotate the two screws 12. The two screws 12 rotate and move in the screw holes 14 of the two fixing plates 3, and the two screws 12 push the two limit frames 11 to move in opposite directions. The two limit frames 11 clamp and fix the support frame 4, and use tools such as screws to fix the base 1 on the structure reserved for the circulating nitrogen compressor through the fixing holes 15 of the base 1, and the end of the connecting rod 10 away from the shell 9 is fixedly connected to the transmission structure of the circulating nitrogen compressor, and the power cord is inserted into the connector 8, and the motor element 13 is energized 13, and the motor element 13 drives the connecting rod 10 to rotate, and the connecting rod 10 is transmitted to the circulating nitrogen compressor. When the motor element 13 inside the shell 9 needs to be repaired, four fixing plates 5 are used to screw out the four bolts 7 from the screw grooves 18 on the side of the shell 9 in turn, so that the shell cover 6 can be separated from the shell 9, and the motor element 13 inside the shell 9 can be taken out for repair.

[0024] Embodiment 2

[0025] like Figure 1-3 As shown, the utility model proposes a circulating nitrogen compressor motor structure. Compared with the first embodiment, this embodiment also includes: a base 1 and a hand wheel 2, and a distance is left between the two hand wheels 2 and the top of the base 1.

[0026] In this embodiment, due to the distance between the hand wheel 2 and the top of the base 1 , the hand wheel 2 will not interfere with the base 1 when it is rotated.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A circulating nitrogen compressor motor structure, comprising a base (1), a shell cover (6), bolts (7), a shell (9) and a screw (12), characterized in that: The shell (9) has screw grooves (18) at four corners of the side surface, the shell cover (6) has round holes (17) in a rectangular array, the four bolts (7) pass through the four round holes (17) and mesh with the four screw grooves (18), a motor element (13) is installed inside the shell (9), a support frame (4) is welded to the bottom of the shell (9), a fixing plate (3) is symmetrically welded to the top of the base (1), two fixing plates (3) have screw holes (14) respectively, the two screw rods (12) are meshed with the two screw holes (14), and the opposite ends of the two screw rods (12) are rotatably mounted with limit frames (11).

2. The motor structure of a circulating nitrogen compressor according to claim 1, characterized in that: A fixing plate (5) is respectively installed on one end of the four bolts (7) away from the housing (9), and the four fixing plates (5) are parallel to the housing cover (6).

3. The motor structure of a circulating nitrogen compressor according to claim 1, characterized in that: A connector (8) is embedded and installed on the top of the shell (9).

4. The motor structure of a circulating nitrogen compressor according to claim 1, characterized in that: A coupling rod (10) is mounted on the side of the housing (9) facing away from the housing cover (6).

5. The motor structure of a circulating nitrogen compressor according to claim 1, characterized in that: A fixing groove (16) is provided on the top of the base (1) on the opposite side of the two fixing plates (3), and the bottom of the support frame (4) is inserted into the fixing groove (16).

6. The motor structure of a circulating nitrogen compressor according to claim 1, characterized in that: Hand wheels (2) are respectively welded on opposite sides of the two screw rods (12), and a distance is left between the two hand wheels (2) and the top of the base (1).

7. The motor structure of a circulating nitrogen compressor according to claim 1, characterized in that: The base (1) is provided with fixing holes (15) in a rectangular array, and the fixing holes (15) penetrate the upper and lower ends of the base (1).

Images