Stator chromium bronze casting joint

Abstract

The utility model discloses a stator chromium bronze casting joint, which comprises a connecting cavity arranged on a joint main body, the connecting cavity is arranged corresponding to a stator, the outer wall of the joint main body is provided with a mounting hole, the inner wall of the joint main body is provided with a groove, the groove is internally provided with a limiting block, and the limiting block is arranged in the connecting cavity. A first spring is arranged in the groove, and the two ends of the first spring are fixedly connected with the connector body and the limiting block correspondingly. The limiting block is arranged on the outer wall of the stator, the limiting hole is formed in the outer wall of the stator, the limiting block corresponds to the limiting hole, the limiting block is connected with the stator in a clamped mode, a pull rod is arranged in the mounting hole, the pull rod is in sliding connection with the connector body, and one end of the pull rod is fixedly connected with the limiting block. The limiting block is jacked into the limiting hole for limiting through the elastic force of the spring, the limiting block can be rapidly taken out during disassembly, follow-up maintenance is facilitated, and the use effect of the casting connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting joints, in particular to a stator chromium bronze casting joint. Background Art

[0002] The stator is a fixed part of the machine. The stator consists of three parts: the stator core, the stator winding and the machine base. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by the magnetic lines of force in the rotating magnetic field to generate current. The stator is usually composed of an iron core, a coil, a skeleton, a lead wire, a tension spring, etc. There are two ways to connect the stator. One is a 4-wire type, in which the rotor is connected in series between two stator windings, and the other is a 2-wire type. After the two stator windings are connected, they are connected in series with the rotor. The two wiring methods are different, but they can be used universally. Castings are metal forming objects obtained by various casting methods, that is, smelted liquid metal, casting joints refer to the chromium bronze is poured, injected, sucked or other casting methods into a pre-prepared mold, and after cooling and subsequent processing such as grinding, the resulting object has a certain shape, size and performance.

[0003] The Chinese patent publication number is CN214036100U, and the authorization announcement date is August 24, 2021. The limiting device of the stator joint of the screw pump includes a stator body, a connecting sleeve is provided at one end of the stator body, two first plug rods are symmetrically fixedly installed on the inner wall of the connecting sleeve, and two first slots are symmetrically opened on the stator body. The first plug rod and the first slot cooperate with each other, and a locking device is installed on the connecting sleeve. A positioning clamping device is installed between the connecting sleeve and the stator body. The advantage is that: the utility model installs a positioning clamping device between the connecting sleeve and the stator, and uses two limiting blocks to pre-position the stator, so that the preliminary positioning between the connecting sleeve and the stator is achieved. The utility model uses two threaded rods to pass through the first plug rod and the second plug rod respectively and then install them with the thread groove, so as to reinforce the limiting connection between the connecting sleeve and the stator, improve the stability of the connection, and facilitate disassembly.

[0004] The existing casting joint is connected to the stator by a spline connection, and rivets are then used to limit the connection. This connection method does not require disassembly during subsequent maintenance, which increases the subsequent maintenance cost and reduces the use effect of the casting joint. Utility Model Content

[0005] The utility model aims to provide a stator chrome bronze casting joint to solve the problem that the existing casting joint is connected to the stator by a spline connection method proposed in the above background technology, and rivets are used for limiting the position after the connection. This connection method does not change during subsequent maintenance, which increases the subsequent maintenance cost and reduces the use effect of the casting joint.

[0006] To achieve the above object, the utility model provides the following technical solution: a stator chromium bronze casting joint, comprising a stator and a joint body, and also comprising:

[0007] A connecting cavity, which is arranged on the joint body, and the connecting cavity and the joint body are arranged through, the connecting cavity is arranged corresponding to the stator, and the stator and the joint body are movably connected, a mounting hole is arranged on the outer wall of the joint body, a groove is arranged on the inner wall of the joint body, and the groove is arranged corresponding to the mounting hole, a limit block is arranged inside the groove, and the limit block is slidably connected to the joint body, a first spring is arranged inside the groove, and two ends of the first spring are respectively fixedly connected to the joint body and the limit block;

[0008] A limiting hole is arranged on the outer wall of the stator, and a limiting block is arranged corresponding to the limiting hole, the limiting block is clamped with the stator, a pull rod is arranged inside the mounting hole, and the pull rod is slidably connected to the joint body, and one end of the pull rod is fixedly connected to the limiting block.

[0009] Preferably, a sealing ring is provided at one end of the connecting cavity, and the sealing ring is arranged outside the stator, and the sealing ring fits both the stator and the joint body.

[0010] Preferably, a dust plug is provided at the upper end of the mounting hole, and the dust plug is integrally connected to the joint body.

[0011] Preferably, a partition piece is provided at the center of the connecting cavity, and the partition piece is integrated with the joint body.

[0012] Preferably, a positioning hole is provided at one end of the stator, positioning columns are provided on both sides of the partition piece, and the positioning columns are fixedly connected to the partition piece, the positioning columns and the positioning holes are arranged correspondingly, and the positioning columns are plugged into the stator, and the cross-sections of the positioning columns and the positioning holes are both triangular.

[0013] Preferably, a second spring is arranged inside the positioning hole, and two ends of the second spring are respectively fitted with the stator and the positioning column.

[0014] Preferably, the joint body is made of chromium bronze casting.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model device is provided with a limit block, a limit hole, a first spring and a pull rod. The first spring applies a thrust to the limit block. Under the action of the thrust, the limit block is pushed into the limit hole, which plays a limit role on the inserted stator, ensuring the firmness of the connection between the stator and the joint. When disassembling, a pulling force is applied to the pull rod, and the limit block is pulled out of the limit hole under the action of the pulling force. At this time, the stator lacks effective limit, and the disassembly can be completed by applying a pulling force to take it out of the connection cavity. The casting joint and the stator are easy to disassemble and assemble, which is convenient for later maintenance.

[0017] 2. The utility model device is provided with a positioning column, a positioning hole and a second spring. The positioning column and the positioning hole can guide the stator inserted into the connecting cavity, so that the stator can be inserted smoothly and the limiting hole can accurately coincide with the groove, which facilitates the limiting block to be pushed into the limiting hole for limiting. The second spring applies an outward thrust to the stator during disassembly, making it easier to remove the stator under the action of the thrust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 For the utility model Figure 2 A partial enlarged view of area A;

[0021] Figure 4 This is a diagram showing the connection relationship between the stator and the joint body of the utility model.

[0022] In the figure: 1. stator; 2. joint body; 3. connecting cavity; 4. mounting hole; 5. dust plug; 6. sealing ring; 7. partition plate; 8. positioning column; 9. positioning hole; 10. limit block; 11. groove; 12. first spring; 13. pull rod; 14. second spring; 15. limit hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-4 The utility model provides an embodiment: a stator chromium bronze casting joint, comprising a stator 1 and a joint body 2, and further comprising:

[0025] A connecting cavity 3 is provided on the joint body 2, and the connecting cavity 3 and the joint body 2 are connected, the connecting cavity 3 and the stator 1 are correspondingly provided, and the stator 1 and the joint body 2 are movably connected, a mounting hole 4 is provided on the outer wall of the joint body 2, a groove 11 is provided on the inner wall of the joint body 2, and the groove 11 is correspondingly provided with the mounting hole 4, a limit block 10 is provided inside the groove 11, and the limit block 10 is slidably connected with the joint body 2, a first spring 12 is provided inside the groove 11, and the two ends of the first spring 12 are respectively fixedly connected with the joint body 2 and the limit block 10;

[0026] A limiting hole 15 is arranged on the outer wall of the stator 1, and the limiting block 10 is arranged corresponding to the limiting hole 15. The limiting block 10 is clamped with the stator 1. A pull rod 13 is arranged inside the mounting hole 4, and the pull rod 13 is slidably connected to the joint body 2, and one end of the pull rod 13 is fixedly connected to the limiting block 10.

[0027] During use: align one end of the stator 1 with the connecting cavity 3 and insert it. When the limiting hole 15 coincides with the groove 11, the first spring 12 applies a thrust to the limiting block 10. Under the action of the thrust, the limiting block 10 is pushed into the limiting hole 15 to limit the stator 1. During disassembly, a pulling force is applied to the pull rod 13. Under the action of the pulling force, the limiting block 10 is pulled out of the limiting hole 15. At this time, the stator 1 is taken out of the connecting cavity 3 to complete the disassembly.

[0028] See also Figure 1 , Figure 2 and Figure 3 A sealing ring 6 is provided at one end of the connecting cavity 3, and the sealing ring 6 is arranged outside the stator 1. The sealing ring 6 fits both the stator 1 and the joint body 2. The connecting gap between the stator 1 and the joint body 2 is filled by the sealing ring 6, which can play a dust-proof role.

[0029] See also Figure 1 , Figure 2 and Figure 4 A dust plug 5 is provided at the upper end of the mounting hole 4, and the dust plug 5 is connected to the joint body 2 as a whole. The mounting hole 4 is blocked by the dust plug 5, which also plays a dust-proof role, preventing dust from entering the mounting hole 4 and causing the pull rod to get stuck.

[0030] See also Figure 2 A partition piece 7 is arranged at the center of the connecting cavity 3, and the partition piece 7 is integrated with the joint body 2. The connecting cavity 3 is divided into two sections by the partition piece 7, and the overall structural strength of the joint body 2 can be increased.

[0031] See also Figure 2 and Figure 3A positioning hole 9 is provided at one end of the stator 1, and positioning columns 8 are provided on both sides of the partition piece 7, and the positioning columns 8 are fixedly connected to the partition piece 7, the positioning columns 8 are correspondingly arranged to the positioning holes 9, and the positioning columns 8 are plugged into the stator 1, and the cross-sections of the positioning columns 8 and the positioning holes 9 are both triangular. By aligning the positioning columns 8 with the positioning holes 9 and inserting them, the stator 1 inserted into the connecting cavity 3 can be guided, ensuring that the stator 1 is smoothly inserted into the connecting cavity 3, so that the limiting hole 15 accurately coincides with the groove 11.

[0032] See also Figure 2 and Figure 3 A second spring 14 is arranged inside the positioning hole 9, and the two ends of the second spring 14 are respectively fitted with the stator 1 and the positioning column 8. The second spring 14 can apply an outward thrust to the stator 1 during disassembly, so that the stator 1 can be better pulled out of the connecting cavity 3.

[0033] See also Figure 1 , the joint body 2 is made of chrome bronze casting.

[0034] Working principle: Align one end of the stator 1 with the connection cavity 3 and insert it, align the positioning column 8 with the positioning hole 9 and insert it. As the stator 1 is inserted, when the limiting hole 15 coincides with the groove 11, the first spring 12 applies a thrust to the limiting block 10, and the limiting block 10 is pushed into the limiting hole 15 under the action of the thrust, which plays a limiting role on the stator 1. When disassembling, apply a pulling force to the pull rod 13, and the limiting block 10 is pulled out of the limiting hole 15 under the action of the pulling force. At this time, the stator 1 can be taken out of the connection cavity 3 to complete the disassembly. The sealing ring 6 fills the connection gap between the stator 1 and the joint body 2, and the dust plug 5 blocks the installation hole 4, which can play a dustproof role.

[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stator chromium bronze casting joint, comprising a stator (1) and a joint body (2), characterized in that: Also includes: A connecting cavity (3) is arranged on the joint body (2), and the connecting cavity (3) and the joint body (2) are connected, the connecting cavity (3) and the stator (1) are arranged correspondingly, and the stator (1) and the joint body (2) are movably connected, a mounting hole (4) is arranged on the outer wall of the joint body (2), a groove (11) is arranged on the inner wall of the joint body (2), and the groove (11) and the mounting hole (4) are arranged correspondingly, a limit block (10) is arranged inside the groove (11), and the limit block (10) is slidably connected to the joint body (2), a first spring (12) is arranged inside the groove (11), and two ends of the first spring (12) are respectively fixedly connected to the joint body (2) and the limit block (10); A limiting hole (15) is arranged on the outer wall of the stator (1), and a limiting block (10) is arranged corresponding to the limiting hole (15), the limiting block (10) is snap-connected with the stator (1), a pull rod (13) is arranged inside the mounting hole (4), and the pull rod (13) is slidably connected to the joint body (2), and one end of the pull rod (13) is fixedly connected to the limiting block (10).

2. A stator chromium bronze casting joint according to claim 1, characterized in that: A sealing ring (6) is provided at one end of the connection cavity (3), and the sealing ring (6) is arranged outside the stator (1), and the sealing ring (6) fits both the stator (1) and the joint body (2).

3. The stator chromium bronze casting joint according to claim 1, characterized in that: A dust plug (5) is provided at the upper end of the interior of the mounting hole (4), and the dust plug (5) is integrally connected to the joint body (2).

4. The stator chromium bronze casting joint according to claim 1, characterized in that: A partition piece (7) is arranged at the center of the connection cavity (3), and the partition piece (7) and the joint body (2) are arranged as a whole.

5. A stator chromium bronze casting joint according to claim 4, characterized in that: A positioning hole (9) is provided at one end of the stator (1), positioning columns (8) are provided on both sides of the partition plate (7), and the positioning columns (8) are fixedly connected to the partition plate (7), the positioning columns (8) and the positioning holes (9) are arranged correspondingly, and the positioning columns (8) are plugged into the stator (1), and the cross-sections of the positioning columns (8) and the positioning holes (9) are both triangular.

6. A stator chromium bronze casting joint according to claim 5, characterized in that: A second spring (14) is arranged inside the positioning hole (9), and two ends of the second spring (14) are respectively fitted with the stator (1) and the positioning column (8).

7. The stator chromium bronze casting joint according to claim 1, characterized in that: The joint body (2) is made of chromium bronze casting.

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