Hoisting device for inner groove type part

Abstract

The utility model relates to a hoisting device for an inner groove type part, which is used for hoisting the whole inner groove type part and vertically placing the inner groove type part. Comprising two clamping rings, two S-shaped connecting plates and two linear connecting plates, the two S-shaped connecting plates are connected with the two clamping rings through set screws respectively, the two linear connecting plates are fixed with the two S-shaped connecting plates through first bolt and nut assemblies respectively, and the arc ends of the clamping rings are determined according to the size of a groove in a part so that it can be guaranteed that the arc ends can be attached to inner holes of the clamping rings. One ends of the two linear connecting plates are milled into square blocks, the other ends of the two linear connecting plates are milled into square blocks, matched with grooves of the S-shaped connecting plates and fixed through fastening screws, the two S-shaped connecting plates are connected through the second bolt and nut assembly, and the two linear connecting plates are connected through the third bolt and nut assembly, so that part hoisting can be conveniently and rapidly achieved, hoisting stability is high, perpendicularity is high, and hoisting strength is good.

Description

Technical Field

[0001] The utility model relates to a hoisting device for an inner groove type part which hoists the inner groove type part entirely and places the inner groove type part vertically. Background Art

[0002] In benchwork assembly, there are often cylinder parts with grooves in the inner hole. The parts need to be hoisted and placed vertically. However, the outer surface of the parts is smooth, without any components, the cylinder wall is thin and there is no hoisting hole designed, such as the hot installation of the liner of the high-pressure vessel, the secondary cylinder of the hydraulic support column (attached Figure 1 ), etc., it is necessary to design a tool that can realize the vertical lifting, placement and assembly of internal grooved cylinder parts. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies in the prior art and provide a lifting device for inner groove type parts which can be used to smoothly lift inner groove type cylinder parts. The device is simple to manufacture, easy to use, and can realize replaceable and adjustable apertures and inner groove widths within a certain range.

[0004] The technical solution of the utility model is achieved as follows: a lifting device for internal groove parts, including two clamping rings, two S-shaped connecting plates respectively connected to the two clamping rings by set screws, and two straight-shaped connecting plates respectively fixed to the two S-shaped connecting plates by first bolt and nut assemblies, the arc end of the clamping ring is determined according to the size of the inner groove of the part to ensure that it fits with the inner hole of the clamping ring, the other end is milled into a square to match the groove of the S-shaped connecting plate and is fixed by set screws, the two S-shaped connecting plates are connected by a second bolt and nut assembly, and the two straight-shaped connecting plates are connected by a third bolt and nut assembly.

[0005] The length of the second bolt and nut assembly is determined according to the assembly dimensions of the two S-shaped connecting plates to ensure that the second bolt and nut assembly has space for rotation after being installed; the first bolt and nut assembly is determined according to the dimensions of the S-shaped connecting plate and the I-shaped connecting plate to ensure that the first bolt and nut assembly has space for rotation after being installed; the third bolt and nut assembly is determined according to the dimensions of the two I-shaped connecting plates to ensure that the third bolt and nut assembly will not fall off after being installed.

[0006] The two clamping rings and the two S-shaped connecting plates are fixed together by two set screws, and the two S-shaped connecting plates are fixed on the two straight-shaped connecting plates by a first bolt and nut assembly.

[0007] The clamping ring is designed as a stepped circle with a maximum outer circle of φD -0.3 -0.5 , thickness L1 -0.2 -0.3， The second step circle is φD1 -0.2-0.3 , the total thickness is L -0.2 -0.3 .

[0008] The positive effects of the technical solution of the utility model are as follows: through this lifting device, the lifting of parts can be realized conveniently and quickly, with high lifting stability, strong verticality and good lifting strength. The device is reasonably designed, simple to manufacture, low in cost, easy to use, and can be used in a certain small range, and can be replaced in a small range according to the groove size. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the secondary cylinder body of the internal groove type hydraulic support column.

[0010] Figure 2 The utility model is a structural front view of a lifting device for an inner groove type part.

[0011] Figure 3 The utility model is a structural left view of a lifting device for inner groove type parts.

[0012] Figure 4 The utility model is a top view of the structure of a clamping ring in a lifting device for an inner groove type part.

[0013] Figure 5 The utility model is a structural front view of a clamping ring in a lifting device for an inner groove type part.

[0014] Figure 6 The utility model is a schematic diagram of an S-shaped connecting plate in a lifting device for an inner groove type part.

[0015] Figure 7 The utility model is a schematic diagram of a straight-line connecting plate in a lifting device for an inner groove type part.

[0016] Figure 8 A schematic diagram of a lifting device for an inner groove type part of the utility model lifting a secondary cylinder body. DETAILED DESCRIPTION

[0017] like Figure 2 , 3 As shown, a lifting device for internal groove parts includes two clamping rings 1, two S-shaped connecting plates 4, two straight connecting plates 6, and four set screws 2.

[0018] like Figure 4 , 5 As shown, the snap ring 1 is designed and manufactured according to the dimensions φD, φD1, L1, and L of the snap ring groove of the inner groove type part: the snap ring is designed to be a step circle with a maximum outer circle of φD -0.3 -0.5, the total thickness is L1 -0.2 -0.3， The second step circle is φD1 -0.2 -0.3， Thickness L -0.2 -0.3 The inner hole is determined according to the specific size of the part's snap ring. After the overall processing is completed, the snap ring is sawed into two snap rings. The width of the snap ring is preferably 2 / 3D. Then remove the sharp corners of the snap ring and keep 5mm. Then mill the width of L2 and mill L -0.1 -0.2 Slotted, drill and tap 2 M threaded holes.

[0019] like Figure 6 As shown, the S-shaped connecting plate has a thickness of L4. L4 thick steel plate is selected and then formed by CNC gas cutting according to the drawing, and then two φD2 holes are drilled.

[0020] like Figure 7 As shown, the I-shaped connecting plate has a thickness of L4. L4 thick steel plate is selected and then formed by CNC gas cutting according to the drawing, and then two φD2 holes are drilled.

[0021] like Figure 1 , 2 As shown in , 3, the described lifting device for the inner groove type parts is connected and fixed by two set screws 2 through a snap ring 1 and an S-shaped connecting plate 4, and the two S-shaped connecting plates 4 and the snap ring and the two snap ring 1 assemblies are connected and fixed by a second bolt and nut assembly 3, and a 4-5mm gap is left to facilitate the rotation with the dead weight of the workpiece when the workpiece is lifted, and then the two straight connecting plates 7 are fixed to one end of the S-shaped connecting plate 4 by a first bolt and nut assembly 5, and are respectively connected to the outside of the S-shaped connecting plate, and the other ends of the two straight connecting plates 6 are connected by a third bolt and nut assembly 7, and the two straight connecting plates 6 are in the lifting position.

[0022] Install the snap ring in the device into the snap ring groove of the part, and use the lifting rope or lifting belt to wrap around the bolt to lift it. When the inner groove type part is lifted, the S-shaped connecting plate will open the snap ring due to its own weight to support the groove, so as to realize the lifting of the inner groove type part. Figure 8 .

Claims

1. A lifting device for internal groove parts, comprising two clamping rings (1), two S-shaped connecting plates (4) respectively connected to the two clamping rings (1) by means of set screws (2), and two straight-shaped connecting plates (6) respectively fixed to the two S-shaped connecting plates (4) by means of first bolt and nut assemblies (5), characterized in that: The arc end of the snap ring (1) is determined according to the size of the groove in the part to ensure that it fits the inner hole of the snap ring. The other end is milled into a square block to match the groove of the S-shaped connecting plate (4) and is fixed by a set screw (2). The two S-shaped connecting plates (4) are connected by a second bolt and nut assembly (3), and the two straight-shaped connecting plates (6) are connected by a third bolt and nut assembly (7).

2. A lifting device for inner groove parts according to claim 1, characterized in that: The length of the second bolt and nut assembly (3) is determined according to the assembly dimensions of the two S-shaped connecting plates (4), ensuring that the second bolt and nut assembly (3) has room for rotation after being installed; the first bolt and nut assembly (5) is determined according to the dimensions of the S-shaped connecting plate (4) and the I-shaped connecting plate (6), ensuring that the first bolt and nut assembly (5) has room for rotation after being installed; and the third bolt and nut assembly (7) is determined according to the dimensions of the two I-shaped connecting plates (6), ensuring that the third bolt and nut assembly (7) does not fall off after being installed.

3. The lifting device for inner groove parts according to claim 1, characterized in that: The two clamping rings (1) and the two S-shaped connecting plates (4) are fixed together by two set screws (2), and the two S-shaped connecting plates (4) are fixed to the two straight-shaped connecting plates (6) by a first bolt and nut assembly (5).

4. The lifting device for inner groove parts according to claim 1, characterized in that: The clamping ring (1) is designed as a stepped circle with a maximum outer circle of φD -0.3 -0.5 , thickness L1 -0.2 -0.3， The second step circle is φD1 -0.2 -0.3 , the total thickness is L -0.2 -0.3 .

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