Locking auxiliary device for nut of quick-change compressor rotor

Abstract

The locking auxiliary device comprises a wrench body, a movable body and a fastener, on the basis, in the using process, the wrench body is arranged on one side of a to-be-locked nut, then the movable body is rotated, the position of the movable body is adjusted, and the nut is locked through the fastener. Then one fastener penetrates through the first assembly hole to be inserted into the auxiliary hole of the to-be-locked nut, the other fastener penetrates through the second assembly hole to be inserted into the other auxiliary hole of the to-be-locked nut, and therefore limiting between the locking auxiliary device and the to-be-locked nut can be completed through the two fasteners; and then the other end of the wrench body is rotated, so that the nut can be locked. According to the locking auxiliary device provided by the embodiment of the invention, the locking and fixing work of the nut can be achieved in a manual mode or a mode of hammering the wrench body, a conventional nut locking and mounting mode is replaced, the appearance quality of the nut is improved, and the quality problems of grinding damage, deep marks and the like are avoided.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of compressor maintenance, and in particular to a locking auxiliary device for a nut of a quick-change compressor rotor. Background Art

[0002] The compressor rotor is mainly composed of the main shaft, impeller, spacer, nut, balance plate, thrust plate, coupling and other parts. Figure 1 As shown. After the impellers and spacers of each level on the main shaft are installed, the nuts at both ends of the main shaft are installed. The nuts are used to lock the impellers and spacers on the rotor to achieve axial locking of the impeller on the rotor. In view of the different sizes and weights of the compressor rotors, the specifications of the nuts also vary. At the same time, the specifications and sizes of the locking process holes on the nuts are also different.

[0003] Usually, the compressor rotor nut is installed in a horizontal manner. The specific assembly process is as follows:

[0004] 1. The fitter manually rotates the nut until the side of the nut is close to the spacer.

[0005] 2. If Figure 2 and Figure 3 As shown in the figure, a nut locking process hole is designed on the end face of the nut, and the fitter uses a tool (such as a gun, a hammer) to repeatedly hammer the gun (the gun is inserted into the nut process hole) to achieve the locking of the nut.

[0006] 3. After the nut is tightened, the fitter will manually beautify the nut process hole to complete the assembly of the nuts at both ends.

[0007] Conventional rotor nut installation methods damage the appearance quality of the rotor, that is, during the process of tightening the nut with a tweezer, the inner wall of the nut locking process hole will be scratched and have deep marks. With the advancement of compressor design, manufacturing, and assembly technology and the increasing requirements of users for the appearance quality of compressor products, users of compressor products do not allow the above-mentioned scratches and marks. It is necessary to optimize and upgrade this assembly method to meet user needs and improve the appearance quality of the rotor. Utility Model Content

[0008] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0009] In view of this, an embodiment of the present application proposes a locking auxiliary device for a nut of a quick-change compressor rotor, comprising:

[0010] A wrench body, one end of which is formed with a first assembly hole;

[0011] A movable body, the movable body is hinged to the middle part of the wrench body, and a second assembly hole is formed at the free end of the movable body;

[0012] A fastener is used to pass through the first assembly hole or the second assembly hole and be connected to the process hole of the nut to be locked.

[0013] In a feasible implementation manner, the fastener is detachably connected to the first assembly hole or the second assembly hole;

[0014] There are multiple fasteners, and the models of the multiple fasteners are different.

[0015] In a feasible implementation manner, each of the fasteners includes an assembly portion and a fixing portion, and the assembly portions of different fasteners have the same structure, while the fixing portions are directly different.

[0016] In a feasible implementation manner, the wrench body is bent, and when the movable body is in an open state, the locking auxiliary device is Y-shaped.

[0017] In a feasible implementation manner, the moving body includes:

[0018] A plate body, one end of which is formed with a second assembly hole;

[0019] Two ear plates are connected to the plate body, a gap is formed between two adjacent ear plates, and the plate body is hinged to the wrench body through the ear plates.

[0020] In a feasible implementation manner, the first assembly hole and the second assembly hole have the same structure.

[0021] In a feasible implementation manner, the locking auxiliary device for the nut of the quick-change compressor rotor further includes:

[0022] A hammering piece is used to strike an end of the wrench body away from the first assembly hole.

[0023] In a feasible implementation manner, the locking auxiliary device for the nut of the quick-change compressor rotor further includes:

[0024] An extension rod, the other end of the wrench body is formed with an inserting hole, and the extension rod is used to be inserted into the inserting hole.

[0025] In a feasible implementation manner, an anti-slip sleeve is used to be sleeved on the wrench body.

[0026] In a feasible implementation manner, the locking auxiliary device for the nut of the quick-change compressor rotor further includes:

[0027] A locking piece is used to lock the wrench body and the movable body.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] The locking auxiliary device for the nut of the quick-change compressor rotor provided in the embodiment of the present application includes a wrench body, a movable body and a fastener. Based on this, during use, the wrench body is first set on one side of the nut to be locked, and then the movable body is rotated to adjust the position of the movable body, and then a fastener is inserted into the process hole of the nut to be locked through the first assembly hole, and then the other fastener is inserted into the other process hole of the nut to be locked through the second assembly hole. Based on this, the locking auxiliary device and the nut to be locked can be limited by the two fasteners, and then the other end of the wrench body can be rotated to achieve the locking of the nut. The locking auxiliary device provided in the embodiment of the present application, on the first hand, can realize the locking and fixing work of the nut by manual operation or hammering the wrench body, instead of the conventional nut locking and installation method, improve the appearance quality of the nut, and avoid the occurrence of quality problems such as grinding and deep marks; on the second hand, after the nut is locked by the locking auxiliary device, the cosmetic treatment inside the nut locking process hole is avoided, and the assembly efficiency of the centrifugal compressor rotor is improved; on the third hand, the nut is locked by the locking auxiliary device, and during the locking process, the wrench body can be in a horizontal state, which is convenient for the fitter to operate and improves the nut locking and installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0031] Figure 1 A schematic structural diagram of a compressor rotor provided in the present application;

[0032] Figure 2 A schematic structural diagram of a compressor rotor nut provided in the present application at one angle;

[0033] Figure 3 A schematic structural diagram of a compressor rotor nut provided in the present application from another angle;

[0034] Figure 4 A schematic structural diagram of a locking auxiliary device for a nut of a quick-change compressor rotor according to an embodiment of the present application;

[0035] Figure 5 A schematic structural diagram of a wrench body of a locking auxiliary device for a nut of a quick-change compressor rotor according to an embodiment of the present application;

[0036] Figure 6 A schematic structural diagram of a movable body of a locking auxiliary device for a nut of a quick-change compressor rotor according to an embodiment of the present application;

[0037] Figure 7 A schematic structural diagram of a fastener of a locking auxiliary device for a nut of a quick-change compressor rotor according to an embodiment of the present application.

[0038] in, Figures 4 to 7 The corresponding relationship between the reference numerals and the component names is as follows:

[0039] 110 wrench body, 120 movable body, 130 fastener;

[0040] 111 is a first assembly hole, 121 is a second assembly hole, 122 is a plate body, 123 is an ear plate, 131 is an assembly part, and 132 is a fixing part. DETAILED DESCRIPTION

[0041] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0042] like Figures 4 to 7 As shown, an embodiment of the present application proposes a locking auxiliary device for a nut of a quick-change compressor rotor, comprising: a wrench body 110, a first assembly hole 111 being formed at one end of the wrench body 110; a movable body 120, the movable body 120 being hinged to the middle part of the wrench body 110, and a second assembly hole 121 being formed at the free end of the movable body 120; a fastener 130, the fastener 130 being used to pass through the first assembly hole 111 or the second assembly hole 121 and connected to the process hole of the nut to be locked.

[0043] The locking auxiliary device for the nut of the quick-change compressor rotor provided in the embodiment of the present application includes a wrench body 110, a movable body 120 and a fastener 130. Based on this, during use, the wrench body 110 is first set on one side of the nut to be locked, and then the movable body 120 is rotated to adjust the position of the movable body 120, and then a fastener 130 is inserted into the process hole of the nut to be locked through the first assembly hole 111, and then another fastener 130 is inserted into the other process hole of the nut to be locked through the second assembly hole 121. Based on this, the locking auxiliary device and the nut to be locked can be limited by the two fasteners 130, and then the other end of the wrench body 110 is rotated to achieve the locking of the nut. The locking auxiliary device provided in the embodiment of the present application, on the one hand, can realize the locking and fixing work of the nut by manual operation or hammering the wrench body 110, instead of the conventional nut locking and installation method, improve the appearance quality of the nut, and avoid the occurrence of quality problems such as grinding and deep marks; on the second hand, after the nut is locked by the locking auxiliary device, the cosmetic treatment inside the nut locking process hole is avoided, and the assembly efficiency of the centrifugal compressor rotor is improved; on the third hand, the nut is locked by the locking auxiliary device, and during the locking process, the wrench body 110 can be in a horizontal state, which is convenient for the fitter to operate and improves the nut locking and installation efficiency.

[0044] like Figures 4 to 7 As shown, in a feasible implementation manner, the fastener 130 is detachably connected to the first assembly hole 111 or the second assembly hole 121 ; there are multiple fasteners 130 , and the multiple fasteners 130 are of different models.

[0045] In this technical solution, a style of fastener 130 is further provided, and fastener 130 is detachably connected to the first assembly hole 111 or the second assembly hole 121, so as to facilitate establishing and unlocking the connection relationship between the locking auxiliary device and the nut to be locked.

[0046] In this technical solution, there are multiple fasteners 130. This is because when the specifications of the locking process holes on the nut are different, the corresponding fasteners 130 can be selected and two fasteners 130 can be replaced to meet the requirements of the specifications of each hole process hole, so that the locking auxiliary device has universality.

[0047] like Figures 4 to 7 As shown, in a feasible implementation, each fastener 130 includes an assembly portion 131 and a fixing portion 132. The assembly portions 131 of different fasteners 130 have the same structure, and the fixing portions 132 are directly different. This arrangement ensures that each fastener 130 can be assembled to the first assembly hole 111 and the second assembly hole 121, and at the same time, the fastener 130 can be adapted to different process holes, so that the locking auxiliary device has universality.

[0048] In a feasible implementation manner, the wrench body 110 is bent, and when the movable body 120 is in an open state, the locking auxiliary device is in a Y shape.

[0049] In this technical solution, a style of the wrench body 110 is further provided. The wrench body 110 is bent. When the movable body 120 is in the open state, the locking auxiliary device is Y-shaped. This arrangement allows the locking auxiliary device to form a triangular area when locking the nut, which can be more stable, and the locking is more convenient and labor-saving.

[0050] like Figures 4 to 7 As shown, in a feasible embodiment, the movable body 120 includes: a plate body 122, one end of which is formed with a second assembly hole 121; two ear plates 123, the ear plates 123 are connected to the plate body 122, a gap is formed between two adjacent ear plates 123, and the plate body 122 is hinged to the wrench body 110 through the ear plates 123. Such an arrangement makes the connection of the movable body 120 more reliable.

[0051] like Figures 4 to 7 As shown, in a feasible implementation manner, the first assembly hole 111 and the second assembly hole 121 have the same structure. This arrangement facilitates the assembly of the fastener 130 .

[0052] In a feasible implementation, the locking auxiliary device for the nut of the quick-change compressor rotor further includes: a hammer, which is used to strike the end of the wrench body 110 away from the first assembly hole 111. In this way, the nut can be locked by hammering the wrench body 110.

[0053] In a feasible implementation, the locking auxiliary device for the nut of the quick-change compressor rotor further includes: an extension rod, and a plug hole is formed at the other end of the wrench body 110, and the extension rod is used to be plugged into the plug hole. Such an arrangement can make the locking of the nut to be locked more labor-saving.

[0054] In a feasible implementation manner, the anti-slip sleeve is used to be sleeved on the wrench body 110. Such an arrangement can make the use of the locking auxiliary device safer.

[0055] In a feasible implementation, the locking auxiliary device for the nut of the quick-change compressor rotor further includes: a locking member, which is used to lock the wrench body 110 and the movable body 120. Such an arrangement can reduce or prevent the loosening of the locking auxiliary device.

[0056] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0057] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0058] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A locking auxiliary device for a nut of a quick-change compressor rotor, characterized in that: include: A wrench body, one end of which is formed with a first assembly hole; A movable body, the movable body is hinged to the middle part of the wrench body, and a second assembly hole is formed at the free end of the movable body; A fastener is used to pass through the first assembly hole or the second assembly hole and be connected to the process hole of the nut to be locked.

2. The locking auxiliary device for the nut of the quick-change compressor rotor according to claim 1, characterized in that: The fastener is detachably connected to the first assembly hole or the second assembly hole; There are multiple fasteners, and the models of the multiple fasteners are different.

3. The locking auxiliary device for the nut of the quick-change compressor rotor according to claim 2, characterized in that: Each of the fasteners comprises an assembly portion and a fixing portion. Different fasteners have the same assembly portion structure, but different fixing portions.

4. The locking auxiliary device for the nut of the quick-change compressor rotor according to claim 1, characterized in that: The wrench body is bent, and when the movable body is in an open state, the locking auxiliary device is Y-shaped.

5. The locking auxiliary device for the nut of the quick-change compressor rotor according to claim 1, characterized in that: The moving body comprises: A plate body, one end of which is formed with a second assembly hole; Two ear plates are connected to the plate body, a gap is formed between two adjacent ear plates, and the plate body is hinged to the wrench body through the ear plates.

6. The locking auxiliary device for the nut of the quick-change compressor rotor according to claim 1, characterized in that: The first assembly hole and the second assembly hole have the same structure.

7. The locking auxiliary device for a nut of a quick-change compressor rotor according to any one of claims 1 to 6, characterized in that: Also includes: A hammering piece is used to strike an end of the wrench body away from the first assembly hole.

8. The locking auxiliary device for a nut of a quick-change compressor rotor according to any one of claims 1 to 6, characterized in that: Also includes: An extension rod, the other end of the wrench body is formed with an inserting hole, and the extension rod is used to be inserted into the inserting hole.

9. The locking auxiliary device for a nut of a quick-change compressor rotor according to any one of claims 1 to 6, characterized in that: An anti-slip sleeve is used for being sleeved on the wrench body.

10. The locking auxiliary device for nuts of quick-change compressor rotors according to any one of claims 1 to 6, characterized in that: Also includes: A locking piece is used to lock the wrench body and the movable body.

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