Special hoisting combination tool for air compressor and centrifugal air compressor

Abstract

The special hoisting combination tool comprises a hoisting plate, an arc-shaped plate and a guide rod, a lug plate is arranged on the surface of the hoisting plate, a first hoisting hole is formed in the surface of the lug plate, and second hoisting holes are symmetrically formed in the positions, on the two sides of the lug plate, of the surface of the hoisting plate; one side of the arc-shaped plate has radian, the other side of the arc-shaped plate is a straight edge, the surface of the side, close to the straight edge, of the arc-shaped plate is attached to the side wall of the hanging plate, and the surface of the arc-shaped plate is connected with the side wall of the lug plate; third lifting holes are symmetrically formed in the positions, on the two sides of the lug plate, of the surface of the arc-shaped plate. The guide rod is arranged in the first lifting hole in a penetrating mode, an external thread is arranged on the surface of one end of the guide rod in the axial direction, and the guide rod is detachably connected with the first lifting hole. According to the air compressor lifting tool, lifting of a diffuser, a gear box and a volute on an air compressor can be achieved at the same time, stable lifting of all parts of the air compressor is guaranteed, and lifting stability and reliability are improved; and safety accidents are reduced while the hoisting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment assembly, in particular to a special hoisting combination tool for an air compressor and a centrifugal air compressor. Background Technique

[0002] The principle of a centrifugal air machine is that the impeller drives the gas to rotate at a high speed, causing the gas to generate a centrifugal force. Due to the diffusive flow of the gas in the impeller, the flow rate and pressure of the gas are increased after passing through the impeller, and compressed air is continuously produced.

[0003] As a key component of a centrifugal air compressor, the impeller needs to be regularly maintained. Its maintenance technical requirements are relatively high. When disassembling and assembling the impeller of the air compressor, it is necessary to hoist the diffuser, gearbox cover and volute of the air compressor. Because of the high hoisting accuracy requirements, during the hoisting process, the hoisted parts cannot shake too much and need to be stable.

[0004] In the prior art, when disassembling and assembling a centrifugal air compressor, when using a lifting ring to hoist the diffuser, gearbox cover and volute of the air compressor, the lifting ring is fixed on the lifting hole or bolt for hoisting. During hoisting, the workpiece is unstable and shakes severely, making hoisting difficult, affecting the disassembly and assembly efficiency of the workpiece, and may damage the workpiece if not operated carefully. Content of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art that the hoisting of the air compressor is unstable and shakes severely, resulting in low hoisting efficiency and poor reliability.

[0006] To solve the above technical problem, the utility model provides a special hoisting combination tool for an air compressor, including:

[0007] A lifting plate, on the surface of which there are ear plates, on the surface of which there are first lifting holes, and on both sides of the ear plates on the surface of the lifting plate, second lifting holes are symmetrically arranged;

[0008] An arc-shaped plate, one side of which has a radian, the other side is a straight edge, the surface of the arc-shaped plate near the straight edge side is attached to the side wall of the lifting plate, and the surface of the arc-shaped plate is connected to the side wall of the ear plate; on the surface of the arc-shaped plate, third lifting holes are symmetrically opened on both sides of the ear plate;

[0009] A guide rod, which is inserted into the first lifting hole, and on the surface of one end of the guide rod, there is an external thread along the axial direction, and the guide rod is detachably connected with the first lifting hole.

[0010] In an embodiment of the utility model, the ear plate is arranged perpendicular to the surface of the lifting plate and the surface of the arc-shaped plate.

[0011] In an embodiment of the present utility model, a taper is provided at one end of the guide rod away from the external thread.

[0012] In an embodiment of the present utility model, both of the second hanging holes are strip-shaped holes.

[0013] In an embodiment of the present utility model, an internal thread that mates with the external thread is disposed inside the first hanging hole.

[0014] In an embodiment of the present utility model, clamping mouths are symmetrically disposed on both sides of the surface of the guide rod.

[0015] A centrifugal air compressor is hoisted by the dedicated hoisting combination tool for air compressors. It is characterized in that: it further includes a diffuser, a gearbox and a volute. The diffuser is disposed inside the volute. The gearbox is disposed on one side of the volute. An output shaft of the gearbox is connected to the diffuser.

[0016] In an embodiment of the present utility model, an annular groove is disposed on the surface of the volute. A plurality of first connection holes are circumferentially disposed inside the annular groove. The first connection holes are connected to the third hanging holes on the arc-shaped plate.

[0017] In an embodiment of the present utility model, the gearbox includes two fitting boxes. A second connection hole is opened at the fitting portion of the two boxes. The second hanging hole is connected to the second connection hole.

[0018] In an embodiment of the present utility model, third connection holes are circumferentially disposed on the diffuser. Fourth connection holes are circumferentially disposed on the surface of the volute. The guide rod is inserted into the third connection holes and the fourth connection holes.

[0019] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0020] The dedicated hoisting combination tool for air compressors and the centrifugal air compressor of the present utility model can simultaneously satisfy the hoisting of the diffuser, the gearbox and the volute on the air compressor, ensure the stable hoisting of each component of the air compressor, improve the stability and reliability of hoisting, improve the hoisting efficiency, and reduce the occurrence of safety accidents. Description of the Drawings

[0021] In order to make the content of the present utility model easier to be clearly understood, the following further describes the present utility model in detail according to the specific embodiments of the present utility model in conjunction with the drawings, wherein

[0022] Figure 1 is the overall structural schematic diagram of the first embodiment of the present utility model;

[0023] Figure 2 isFigure 1 Schematic diagram of the structure of the middle suspension plate and the arc-shaped plate;

[0024] Figure 3 is Figure 1 Schematic diagram of the structure of the guide rod in the middle;

[0025] Figure 4 It is the schematic diagram of the overall structure of the second embodiment of the present invention;

[0026] Figure 5 is Figure 4 Schematic diagram of the structure of the volute and the arc-shaped plate in the middle;

[0027] Figure 6 is Figure 5 Enlarged view of the local structure at A in the middle;

[0028] Figure 7 is Figure 4 Schematic diagram of the structure of the gearbox housing and the suspension plate in the middle;

[0029] Figure 8 is Figure 7 Enlarged view of the local structure at B in the middle;

[0030] Figure 9 is Figure 4 Schematic diagram of the structure of the diffuser and the volute in the middle;

[0031] Figure 10 is Figure 9 Enlarged view of the local structure at C in the middle;

[0032] Explanation of the reference numerals in the drawings of the specification: 1. Suspension plate; 2. Arc-shaped plate; 3. Guide rod; 4. Volute; 5. Gearbox; 6. Diffuser; 11. Ear plate; 12. Second lifting hole; 21. Third lifting hole; 31. External thread; 32. Clamping opening; 33. Taper; 41. Annular groove; 51. Housing; 61. Third connection hole; 111. First lifting hole; 112. Internal thread; 411. First connection hole; 412. Fourth connection hole; 511. Second connection hole. Detailed implementation manners

[0033] The present invention will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the specific embodiments cited are not intended to limit the present invention.

[0034] Embodiment 1

[0035] Referring to Figures 1 - 3 as shown, the present invention discloses a special hoisting combination tool for air compressors, which is characterized in that it includes:

[0036] Hanging plate 1, on the surface of the hanging plate 1, there is an ear plate 11, on the surface of the ear plate 11, there is a first hanging hole 111, and on both sides of the ear plate 11 on the surface of the hanging plate 1, second hanging holes 12 are symmetrically arranged.

[0037] Arc-shaped plate 2, one side of the arc-shaped plate 2 has a curvature, the other side of the arc-shaped plate 2 is a straight edge, the surface of the arc-shaped plate 2 near the straight edge side is attached to the side wall of the hanging plate 1, and the surface of the arc-shaped plate 2 is connected to the side wall of the ear plate 11; on the surface of the arc-shaped plate 2, third hanging holes 21 are symmetrically arranged on both sides of the ear plate 11.

[0038] Guide rod 3, the guide rod 3 is inserted into the first hanging hole 111, on the surface of one end of the guide rod 3, an external thread 31 is arranged along the axial direction, and the guide rod 3 is detachably connected with the first hanging hole 111.

[0039] It can be seen that the hoisting tool in the present utility model includes three parts, among which the hanging plate 1 and the arc-shaped plate 2 are fixedly connected, the arc-shaped plate 2 is arranged on one side of the hanging plate 1, and the surface of the arc-shaped plate 2 is fixedly connected with the side wall of the hanging plate 1 and the side wall of the ear plate 11. Specifically, the ear plate 11 on the surface of the hanging plate 1 is vertically arranged with respect to the surface of the hanging plate 1, and the side of the ear plate 11 connected to the hanging plate 1 is full-welded with a bevel groove to ensure the connection strength of the ear plate 11. The first hanging hole 111 opened on the surface of the ear plate 11 is connected with a hook and a sling during actual operation, and the second hanging hole 12 is opened on the surface of the hanging plate 1 for connecting with the threaded hole on the surface of the workpiece.

[0040] In the present utility model, at the joint of the two boxes 51 of the gearbox 5, there is a second connection hole 511, the joint surface of the two boxes 51 is a plane, during hoisting, the plane of the hanging plate 1 is attached to the connection surface of the box 51, the second connection hole 511 is connected with the second hanging hole 12 in a matching manner, and a hook or a sling is inserted into the first hanging hole 111 for hoisting the box 51 of the gearbox 5, which can ensure the stability of the box 51 of the gearbox 5 during hoisting. With the help of the second connection hole 511 opened on the box 51 of the gearbox 5, the reliability of the connection can be ensured through bolt connection.

[0041] The surface of the volute 4 is provided with an annular groove 41. During the hoisting process, one side of the arc-shaped plate 2 in the entire lifting tool is attached to the annular groove 41, and the side of the arc-shaped plate 2 with a curvature is clamped to the side wall of the annular groove 41. The third lifting hole 21 opened on the arc-shaped plate 2 corresponds to the first connection hole 411 on the annular groove 41. The first connection hole 411 and the third lifting hole 21 are connected by an assembly bolt. At the same time, a hook or sling is passed through the first lifting hole 111 (sharing a lifting ear with the lifting plate 1) to realize the hoisting of the volute 4. In this embodiment, the third lifting hole 21 is a circular smooth hole. As a preferred solution of the present invention, the third lifting hole 21 can also be an arc-shaped long hole to adapt to the positions of any two adjacent first lifting holes 111.

[0042] External threads 31 are provided on the surface of one end of the guide rod 3. The guide rod 3 is passed through the first lifting hole 111 and is detachably connected to the ear plate 11. As a whole of the entire lifting tool, one end with external threads 31 can be connected to the first lifting hole 111, and the guide rod 3 can be taken out during use. Specifically, actually, the guide rod 3 is equivalent to a connecting bolt. During the hoisting process, one end of the external threads 31 of the guide rod 3 is connected to the fourth connection hole 412 on the volute 4. During the hoisting process, the third connection hole 61 on the diffuser 6 is passed through the other end of the guide rod 3. Preferably, at least two guide rods 3 are passed through the volute 4 to stabilize the diffuser 6 at the port of the volute 4, facilitating the passing of connecting bolts through other hole positions.

[0043] The combined lifting tool in the present invention can simultaneously meet the hoisting of the diffuser 6, the gearbox 5, and the volute 4 on the air compressor, ensure the stable hoisting of each component of the air compressor, improve the stability and reliability of hoisting, and while improving the hoisting efficiency, reduce the occurrence of safety accidents.

[0044] Furthermore, the ear plate 11 is arranged perpendicular to the surfaces of the lifting plate 1 and the arc-shaped plate 2. Specifically, both the lifting plate 1 and the arc-shaped plate 2 are connected to the ear plate 11, and both side edges of the ear plate 11 are fixedly connected to the lifting plate 1 and the arc-shaped plate 2 by welding. As a preferred solution in the present invention, the ear plate 11 is perpendicular to the surfaces of the lifting plate 1 and the arc-shaped plate 2, avoiding interference in the hoisting position during hoisting and also facilitating the production of the jig.

[0045] Furthermore, a taper 33 is provided at one end of the guide rod 3 away from the external threads 31.

[0046] Specifically, in order to facilitate the quick cooperation between the diffuser 6 and the guide rod 3 during hoisting, as a preferred solution of the present invention, a taper 33 is provided at the end of the guide rod 3 to guide the guide rod 3 through the third connection hole 61.

[0047] Further, as a preferred solution of the present utility model, both of the two second lifting holes 12 are strip-shaped holes, which can adapt to connections with different hole pitches and facilitate the adjustment of the hole pitch during the connection process.

[0048] Further, an internal thread 112 that mates with the external thread 31 is disposed inside the first lifting hole 111.

[0049] Further, clamping mouths 32 are symmetrically arranged on both sides of the surface of the guide rod 3.

[0050] Specifically, during the connection process of the guide rod 3, the clamping mouths 32 symmetrically arranged on both sides facilitate the fixation of a wrench, and the guide rod 3 is screwed into the fourth connection hole 412.

[0051] Embodiment 2

[0052] Refer to Figures 4 - 10 As shown, a centrifugal air compressor is hoisted by the special hoisting combination tool for air compressors described in Embodiment 1, and is characterized in that: it further includes a diffuser 6, a gearbox 5 and a volute 4. The diffuser 6 is arranged inside the volute 4. The gearbox 5 is arranged on one side of the volute 4, and the output shaft of the gearbox 5 is connected to the diffuser 6.

[0053] Further, an annular groove 41 is arranged on the surface of the volute 4, and a plurality of first connection holes 411 are circumferentially arranged in the annular groove 41. The first connection holes 411 are connected to the third lifting holes 21 on the arc-shaped plate 2.

[0054] Further, the gearbox 5 includes two fitting boxes 51. A second connection hole 511 is opened at the fitting part of the two boxes 51. The second lifting hole 12 is connected to the second connection hole.

[0055] Further, third connection holes 61 are circumferentially arranged on the diffuser 6, and fourth connection holes 412 are circumferentially arranged on the surface of the volute 4. The guide rod 3 is arranged inside the third connection holes 61 and the fourth connection holes 412.

[0056] In summary, the present utility model introduces a special lifting combination tool for air compressors and a centrifugal air compressor, and the specific operation method is as follows: First, for the lifting of the gearbox 5, the surface of the lifting plate 1 is attached to the connection surface of the gearbox 5 housing 51, and the two second lifting holes 12 of the lifting plate 1 are connected to the second connection holes 511 on the surface of the housing 51 through bolts. Then, a sling or a hook is connected to the first lifting hole 111 to lift the gearbox 5 housing 51. Secondly, for the lifting of the volute 4, the curved side of the lifting tool arc plate 2 is abutted against the annular groove 41 on the surface of the volute 4, and the two third lifting holes 21 of the arc plate 2 are connected to the first connection holes 411 in the annular groove 41 through bolts. Then, a sling or a hook is connected to the first lifting hole 111 to lift the volute 4; finally, for the lifting of the diffuser 6, first, the guide rod 3 is connected to the fourth connection hole 412 on the surface of the volute 4, and then the third connection hole 61 on the diffuser 6 is inserted from one end of the taper 33 of the guide rod 3 to stabilize the diffuser 6 at the port of the volute 4. Then, the bolts for fixing the diffuser 6 are used to connect the third connection hole 61 and the fourth connection hole 412, and finally the diffuser 6 is connected to the volute 4. The combined lifting tool in the present utility model can simultaneously meet the lifting of the diffuser 6, the gearbox 5 and the volute 4 on the air compressor, ensure the stable lifting of each component of the air compressor, improve the stability and reliability of the lifting, improve the lifting efficiency, and reduce the occurrence of safety accidents.

[0057] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. A special lifting assembly tool for air compressor, characterized in that: include: A hanging plate, wherein a lug plate is arranged on the surface of the hanging plate, a first hanging hole is arranged on the surface of the lug plate, and second hanging holes are symmetrically arranged on the surface of the hanging plate on both sides of the lug plate; An arc-shaped plate, one side of the arc-shaped plate is provided with an arc, the other side of the arc-shaped plate is a straight side, the surface of the arc-shaped plate close to the straight side is in contact with the side wall of the hanging plate, and the surface of the arc-shaped plate is connected to the side wall of the ear plate; the surface of the arc-shaped plate is symmetrically provided with third hanging holes on both sides of the ear plate; A guide rod is inserted into the first hanging hole, an external thread is axially arranged on the surface of one end of the guide rod, and the guide rod is detachably connected to the first hanging hole.

2. The special lifting assembly tool for air compressor according to claim 1 is characterized in that: The ear plate is arranged perpendicular to the surface of the hanging plate and the surface of the arc plate.

3. The special lifting assembly tool for air compressor according to claim 1 is characterized in that: One end of the guide rod away from the external thread is provided with a taper.

4. The special hoisting assembly tool for air compressor according to claim 1 is characterized in that: The two second hanging holes are both bar-shaped holes.

5. The special lifting assembly tool for air compressor according to claim 1 is characterized in that: An internal thread matching the external thread is provided inside the first hanging hole.

6. The special lifting assembly tool for air compressor according to claim 1 is characterized in that: Clamping openings are symmetrically arranged on both sides of the surface of the guide rod.

7. A centrifugal air compressor, hoisted by means of a special hoisting assembly tool for air compressors according to any one of claims 1 to 6, characterized in that: It also includes a diffuser, a gear box and a volute, wherein the diffuser is arranged in the volute, the gear box is arranged on one side of the volute, and the output shaft of the gear box is connected to the diffuser.

8. The centrifugal air compressor according to claim 7, characterized in that: An annular groove is arranged on the surface of the volute, and a plurality of first connecting holes are arranged in the circumferential direction of the annular groove. The first connecting holes are connected to the third hanging holes on the arc plate.

9. The centrifugal air compressor according to claim 7, characterized in that: The gear box comprises two fitted boxes, a second connection hole is provided at the fitting position of the two boxes, and the second hanging hole is connected to the second connection hole.

10. The centrifugal air compressor according to claim 7, characterized in that: The diffuser is provided with a third connection hole in the circumference, the volute surface is provided with a fourth connection hole in the circumference, and the guide rod is inserted into the third connection hole and the fourth connection hole.

Images