Compressor stator hot jacket supporting tool

Abstract

The utility model provides a compressor stator hot jacket supporting tool, which comprises an inner cylinder inserted in a stator base, a supporting ring fixedly connected with the inner cylinder is sleeved at the bottom of the inner cylinder, three L-shaped plates are annularly and equidistantly mounted on the upper surface of the supporting ring, a tray is arranged on the lower side of the inner cylinder, and the supporting ring is fixedly connected with the inner cylinder. Two symmetrically-arranged connecting rods are installed between the tray and the supporting ring, a vertically-arranged electric push rod is installed on the lower surface of the tray, the movable end of the electric push rod penetrates through the tray and is provided with a top disc, and the outer diameter of the top disc is smaller than the inner diameter of the inner barrel. Ejector rods used for lifting compressor stator iron cores are annularly installed on the edge of the upper surface of the top disc at equal intervals, the top disc and the ejector rods are arranged in the inner cylinder, and a cooling piece used for reducing the temperature of the movable end of the electric push rod is installed in the middle of the upper surface of the tray. The utility model has the following beneficial effects: hard collision between the stator core and the inner wall of the stator frame is avoided.

Description

Technical Field

[0001] The utility model relates to a support tool for hot sleeving of a compressor stator, belonging to the technical field of compressors. Background Technique

[0002] The motor is one of the main components in the compressor. Generally, for the hot sleeving of the compressor stator, the stator frame after heating is fixed, the stator core is lifted and sleeved into the stator frame, that is, the stator frame is sleeved on the inner cylinder, and the relative position between the inner cylinder and the stator frame is kept unchanged. Then the lifted stator core is slowly lowered into the stator frame. Since the stator core is lifted by the lifting tool, the lifting tool will occupy a part of the space at the upper end of the stator core. At this time, affected by the lifting tool, the lower end of the stator core is not completely lowered to the required position in the stator frame. When the lifting tool is removed from the stator core, the stator core will fall to the required position in the stator frame under the action of its own gravity. In this case, there will be a collision situation, and the probability of damage to the stator core is relatively high. Therefore, it is necessary to design a support tool for hot sleeving of a compressor stator to avoid hard collision between the stator core and the inner wall of the stator frame. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a support tool for hot sleeving of a compressor stator to solve the problems put forward in the above background technique. The utility model avoids hard collision between the stator core and the inner wall of the stator frame.

[0004] In order to achieve the above purpose, the utility model is realized by the following technical scheme: A support tool for hot sleeving of a compressor stator includes an inner cylinder for inserting into the stator frame. A support ring connected and fixed to the inner cylinder is sleeved at the bottom of the inner cylinder. Three L-shaped plates are annularly and equidistantly installed on the upper surface of the support ring. A strip-shaped opening is formed in the horizontal part of the L-shaped plate, and a limit screw threadedly connected to the stator frame is inserted into the strip-shaped opening. A tray is arranged below the inner cylinder. Two symmetrically arranged connecting rods are installed between the tray and the support ring. An electric push rod arranged vertically is installed on the lower surface of the tray. The movable end of the electric push rod penetrates through the tray and is installed with a top plate. The outer diameter of the top plate is smaller than the inner diameter of the inner cylinder. A top rod for lifting the compressor stator core is annularly and equidistantly installed at the edge part of the upper surface of the top plate. The top plate and the top rod are both arranged inside the inner cylinder. A temperature reduction part for reducing the temperature of the movable end of the electric push rod is installed at the middle position of the upper surface of the tray.

[0005] Further, the cooling member includes a water storage sleeve. A round hole is provided in the middle position of the upper surface of the tray. A water storage sleeve arranged concentrically with the round hole is provided above the round hole. The upper end of the water storage sleeve is open. The height of the water storage sleeve is less than the distance between the support ring and the tray. The water storage sleeve is installed on the upper surface of the tray. A through hole aligned with the round hole is provided in the middle position of the inner bottom of the water storage sleeve. A loop is provided above the through hole. The lower end of the loop is fixedly connected to the water storage sleeve. The movable end of the electric push rod passes through the channel formed by the round hole, the through hole and the loop. A plurality of annular grooves are equidistantly provided on the inner surface of the loop from top to bottom. A sealing ring is inserted in the annular groove. The sealing ring is sleeved on the movable end of the electric push rod.

[0006] Further, a branch pipe is installed at the lower part of the outer surface of the water storage sleeve. A stop valve is installed at one end of the branch pipe away from the water storage sleeve.

[0007] Further, a plurality of blind holes are equidistantly provided in a circular shape at the edge of the upper surface of the top plate. The lower end of the top rod is fixedly connected in the blind hole. The upper end of the top rod is fixedly connected with a tapered head that is narrower at the top and wider at the bottom.

[0008] Further, a connector is fixedly connected at the middle position of the lower surface of the top plate. The movable end of the electric push rod is fixedly connected with the connector.

[0009] Further, two inclined rods are symmetrically and fixedly connected to the outer surface of the connector. One end of the inclined rod away from the connector is fixedly connected to the top plate.

[0010] Further, three legs are annularly and equidistantly installed on the lower surface of the tray. The lower end of the leg is fixedly connected with a chassis. A plurality of fixing holes are evenly provided on the upper surface of the chassis.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. Insert the inner cylinder into the heated stator frame, then make the lower end of the stator frame contact with the horizontal part of the L-shaped plate, and make the limit screw pass through the strip-shaped opening and then be threadedly connected with the stator frame to complete the limitation of the position of the stator frame.

[0013] 2. Control the electric push rod to extend. The electric push rod drives the structure formed by the top plate and the top rod to move upward in the inner cylinder, so that the upper end of the top rod contacts the lower end of the stator core in a suspended state. After removing the lifting tool from the stator core, the weight of the stator core will act on the structure formed by the top rod and the top plate. Control the electric push rod to contract, so that the stator core will move downward along the stator frame until it moves to a preset position, avoiding hard collision between the stator core and the inner wall of the stator frame.

[0014] 3. Add an appropriate amount of water to the water storage sleeve. Then, after the electric push rod extends into the heated stator base, a part of the heat in the stator base is transferred to the movable end of the electric push rod through heat conduction. As the electric push rod expands and contracts, the movable end of the electric push rod will come into contact with the cooling water in the water storage sleeve. Thus, the heat on the electric push rod will be transferred to the cooling water in the water storage sleeve, achieving the cooling of the movable end of the electric push rod and avoiding damage to the electric push rod due to temperature rise after being used for a period of time. After opening the stop valve, it is convenient to drain the water in the water storage sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objectives, and advantages of the present utility model will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 FIG. is a schematic structural diagram of a heat sleeve support tool for a compressor stator of the present utility model;

[0017] Figure 2 FIG. is an assembly diagram of a collar, a branch pipe, a stop valve, and a water storage sleeve in a heat sleeve support tool for a compressor stator of the present utility model;

[0018] Figure 3 FIG. is an assembly diagram of a jacking rod and a jacking plate in a heat sleeve support tool for a compressor stator of the present utility model;

[0019] Figure 4 FIG. is an assembly diagram of a sealing ring, a collar, and a water storage sleeve in a heat sleeve support tool for a compressor stator of the present utility model;

[0020] In the figure: 1-inner cylinder, 2-supporting ring, 3-tray, 4-connecting rod, 5-leg, 6-chassis, 7-electric push rod, 8-water storage sleeve, 9-L-shaped plate, 10-limit screw, 11-strip-shaped opening, 12-collar, 13-branch pipe, 14-stop valve, 15-jacking plate, 16-jacking rod, 17-inclined rod, 18-connecting head, 19-tapered head, 20-through hole, 21-sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, objectives, and effects achieved by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please refer to Figure 1, the utility model provides a technical solution: a compressor stator hot sleeve support tool, which includes an inner cylinder 1 for inserting into the stator frame. A support ring 2 connected and fixed to the inner cylinder 1 is sleeved at the bottom of the inner cylinder 1. Three L-shaped plates 9 are equidistantly installed in a ring shape on the upper surface of the support ring 2. A strip-shaped opening 11 is provided in the horizontal part of the L-shaped plate 9, and a limit screw 10 threadedly connected to the stator frame is inserted into the strip-shaped opening 11. The inner cylinder 1 is inserted into the heated stator frame, and then the lower end of the stator frame is in contact with the horizontal part of the L-shaped plate 9. The limit screw 10 passes through the strip-shaped opening 11 and is threadedly connected to the stator frame to complete the limitation of the position of the stator frame.

[0023] Refer to Figure 1 , a tray 3 is provided on the lower side of the inner cylinder 1. Two symmetrically arranged connecting rods 4 are installed between the tray 3 and the support ring 2. The connecting rods 4 play a role in connecting the tray 3 and the support ring 2, keeping a certain distance between the inner cylinder 1 and the tray 3. Three legs 5 are equidistantly installed in a ring shape on the lower surface of the tray 3. The lower ends of the legs 5 are connected and fixed to a chassis 6. A plurality of fixing holes are evenly provided on the upper surface of the chassis 6. The position of the chassis 6 is limited by using the fixing holes to complete the limitation of the position of the legs 5. The three legs 5 jointly realize the limitation of the position of the tray 3.

[0024] Refer to Figure 1 and Figure 3 , an electric push rod 7 arranged vertically is installed on the lower surface of the tray 3. The movable end of the electric push rod 7 penetrates through a circular hole provided in the middle position of the upper surface of the tray 3. The movable end of the electric push rod 7 is connected and fixed to a connecting head 18 installed in the middle position of the lower surface of the top plate 15. The connecting head 18 realizes the connection between the movable end of the electric push rod 7 and the top plate 15. Two inclined rods 17 are symmetrically connected and fixed to the outer surface of the connecting head 18. One end of the inclined rod 17 away from the connecting head 18 is connected and fixed to the top plate 15. The design of the inclined rod 17 improves the mechanical strength of the connection between the connecting head 18 and the top plate 15. The outer diameter of the top plate 15 is smaller than the inner diameter of the inner cylinder 1. A plurality of ejector rods 16 for lifting the compressor stator core are installed in blind holes evenly provided in a ring shape at the edge part of the upper surface of the top plate 15. The upper end of the ejector rod 16 is connected and fixed to a tapered head 19 with a narrow upper part and a wide lower part. The design of the tapered head 19 facilitates the ejector rod 16 to pass through the coil at the end of the stator core. The top plate 15 and the ejector rods 16 are both arranged inside the inner cylinder 1. Control the electric push rod 7 to extend. The electric push rod 7 drives the structure formed by the top plate 15 and the ejector rods 16 to move upward inside the inner cylinder 1, so that the upper end of the ejector rod 16 contacts the lower end of the stator core in a suspended state. After removing the lifting tool from the stator core, the weight of the stator core will act on the structure formed by the ejector rod 16 and the top plate 15. Control the electric push rod 7 to contract, so that the stator core will move downward along the stator frame until it moves down to a preset position, avoiding hard collision between the stator core and the inner wall of the stator frame.

[0025] Refer to Figure 1 , Figure 2 andFigure 4 , a water storage sleeve 8 concentric with the circular hole is provided above the circular hole. The upper end of the water storage sleeve 8 is open. The height of the water storage sleeve 8 is less than the distance between the support ring 2 and the tray 3. The water storage sleeve 8 is installed on the upper surface of the tray 3. A through hole 20 aligned with the circular hole is provided at the middle position of the inner bottom of the water storage sleeve 8. A trap 12 is provided above the through hole 20. The lower end of the trap 12 is fixedly connected to the water storage sleeve 8. The movable end of the electric push rod 7 penetrates through the channels formed by the circular hole, the through hole 20 and the trap 12. A plurality of annular grooves are equidistantly arranged on the inner surface of the trap 12 from top to bottom. Sealing rings 21 are inserted into the annular grooves. The sealing rings 21 are sleeved on the movable end of the electric push rod 7. The structure formed by the sealing rings 21 and the trap 12 together realizes the sealing between the water storage sleeve 8 and the movable end of the electric push rod 7. A branch pipe 13 is installed at the lower position of the outer surface of the water storage sleeve 8. A stop valve 14 is installed at one end of the branch pipe 13 away from the water storage sleeve 8. An appropriate amount of water is added to the water storage sleeve 8. Then, after the electric push rod 7 extends into the heated stator frame, a part of the heat in the stator frame is transferred to the movable end of the electric push rod 7 by heat conduction. As the electric push rod 7 expands and contracts, the movable end of the electric push rod 7 will contact the cooling water in the water storage sleeve 8. Thus, the heat on the electric push rod 7 will be transferred to the cooling water in the water storage sleeve 8, realizing the cooling of the movable end of the electric push rod 7 and avoiding damage to the electric push rod 7 due to temperature rise after being used for a period of time. After opening the stop valve 14, it is convenient to drain the water in the water storage sleeve 8.

[0026] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hot sleeve support tool for a compressor stator, comprising an inner cylinder (1) for being inserted into a stator frame, characterized in that: A support ring (2) fixedly connected to the inner cylinder (1) is sleeved at the bottom of the inner cylinder (1). Three L-shaped plates (9) are equidistantly installed in a ring shape on the upper surface of the support ring (2). A strip-shaped opening (11) is formed in the horizontal part of the L-shaped plate (9). A limit screw (10) threadedly connected to the stator frame is inserted into the strip-shaped opening (11). A tray (3) is arranged below the inner cylinder (1). Two symmetrically arranged connecting rods (4) are installed between the tray (3) and the support ring (2). An electric push rod (7) arranged vertically is installed on the lower surface of the tray (3). The movable end of the electric push rod (7) penetrates through the tray (3) and is provided with a top plate (15). The outer diameter of the top plate (15) is smaller than the inner diameter of the inner cylinder (1). A top rod (16) for lifting the compressor stator core is equidistantly installed in a ring shape at the edge part of the upper surface of the top plate (15). The top plate (15) and the top rod (16) are both arranged inside the inner cylinder (1). A temperature reducing member for reducing the temperature of the movable end of the electric push rod (7) is installed at the middle position of the upper surface of the tray (3).

2. The thermal sleeve support tool for a compressor stator according to claim 1, wherein: The temperature reducing member includes a water storage sleeve (8). A circular hole is formed at the middle position of the upper surface of the tray (3). A water storage sleeve (8) concentric with the circular hole is arranged above the circular hole. The upper end of the water storage sleeve (8) is open. The height of the water storage sleeve (8) is smaller than the distance between the support ring (2) and the tray (3). The water storage sleeve (8) is installed on the upper surface of the tray (3). A through hole (20) aligned with the circular hole is formed at the middle position of the inner bottom of the water storage sleeve (8). A sleeve (12) is arranged above the through hole (20). The lower end of the sleeve (12) is fixedly connected to the water storage sleeve (8). The movable end of the electric push rod (7) penetrates through the channels formed by the circular hole, the through hole (20) and the sleeve (12). A plurality of annular grooves are equidistantly formed on the inner surface of the sleeve (12) from top to bottom. A sealing ring (21) is inserted into the annular groove. The sealing ring (21) is sleeved on the movable end of the electric push rod (7).

3. The thermal shrinkage support tool for a compressor stator according to claim 2, characterized in that: A branch pipe (13) is installed at the lower part of the outer surface of the water storage sleeve (8). A stop valve (14) is installed at one end of the branch pipe (13) far away from the water storage sleeve (8).

4. A compressor stator hot-sleeve support tool according to claim 1, characterized in that: A plurality of blind holes are equidistantly formed in a ring shape at the edge part of the upper surface of the top plate (15). The lower end of the top rod (16) is fixedly connected in the blind hole. The upper end of the top rod (16) is fixedly connected with a tapered head (19) with a narrow upper part and a wide lower part.

5. A compressor stator hot sleeve support tool according to claim 1, characterized in that: A connecting head (18) is fixedly connected at the middle position of the lower surface of the top plate (15). The movable end of the electric push rod (7) is fixedly connected with the connecting head (18).

6. The compressor stator hot sleeve support tool according to claim 5, characterized in that: Two inclined rods (17) are symmetrically fixedly connected to the outer surface of the connecting head (18). One end of the inclined rod (17) far away from the connecting head (18) is fixedly connected with the top plate (15).

7. A compressor stator hot sleeve support tool according to claim 1, characterized in that: Three legs (5) are equidistantly installed in a ring shape on the lower surface of the tray (3). The lower end of the leg (5) is fixedly connected with a chassis (6). A plurality of fixing holes are evenly formed on the upper surface of the chassis (6).

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