Roots vacuum pump air seal ring installation tool

Abstract

The utility model relates to the technical field of installation of wall plate air sealing rings and air cylinder sealing rings of roots vacuum pumps, in particular to an installation tool for an air sealing ring of a roots vacuum pump, which comprises a spring steel band, a left handle, a right handle and a locking component. The structure is reasonable and compact, during installation, the roots vacuum pump air seal ring is sleeved with the air seal ring sleeve, then the air seal ring sleeve is placed in the spring steel band, and then the distance between the left handle and the right handle is reduced, so that the outer side of the roots vacuum pump air seal ring on the air seal ring sleeve is attached to the inner side of the spring steel band in the radial direction; the left handle and the right handle are fixed together through the locking assembly, the clamped air seal ring sleeve is right opposite to a wall plate cylinder body hole according to the installation direction, then the air seal ring sleeve and the roots vacuum pump air seal ring can be easily installed in a wall plate cylinder body by slightly beating the air seal ring sleeve with a palm, the operation is simple, the installation operation of the roots vacuum pump air seal ring is simplified, and the installation efficiency is improved. The installation difficulty of the roots vacuum pump air seal ring and the air seal ring sleeve is reduced, and the maintenance work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of installation of a Roots vacuum pump wallboard gas sealing ring and a cylinder sealing ring, and is a Roots vacuum pump gas sealing ring installation tool. Background Art

[0002] Roots vacuum pumps are widely used in chemical production equipment. The main failures of Roots vacuum pumps are bearing wear, blade wear, gap change, and seal failure. During maintenance, because the rotor shaft of the Roots pump is installed with the wall panel, the seal is set as an air seal device. When assembling the air seal ring, it is difficult for maintenance personnel to inspect and disassemble, which is time-consuming and labor-intensive. Summary of the invention

[0003] The utility model provides a gas seal ring installation tool for a Roots vacuum pump, which overcomes the shortcomings of the prior art and can effectively solve the problem of difficulty in installing the gas seal ring of the existing Roots vacuum pump.

[0004] The technical solution of the utility model is achieved through the following measures: a Roots vacuum pump air seal ring installation tool, comprising a spring steel belt, a left handle, a right handle and a locking assembly, the spring steel belt is in an arc shape with an opening downward, a left handle is fixed to the outside of the first end of the elastic ring steel belt, the lower part of the left handle is inclined to the left relative to the upper part, a right handle with the same structure as the left handle and symmetrically arranged is fixed to the outside of the second end of the spring steel belt, and a locking assembly for adjusting the distance between the left handle and the right handle is provided at the lower part of the left handle and the lower part of the right handle.

[0005] The following are further optimizations and / or improvements to the above utility model technical solution:

[0006] The above-mentioned locking assembly may include a locking pin and a locking plate. The locking pin is fixedly installed on the front lower part of the left handle, and the locking plate is rotatably installed on the front lower part of the right handle. A plurality of front-to-back locking grooves are arranged at intervals on the left and right sides of the lower side of the locking plate, and the locking pin is clamped in one of the locking grooves.

[0007] The locking pin may be circular, the locking groove may be V-shaped with its opening facing downward, and an arc transition surface matching the locking pin may be provided between the two side surfaces of the locking groove.

[0008] The lower parts of the right side surface and the left side surface of the locking groove can be inclined to the right relative to the upper part.

[0009] A limiting ring can be fixed on the outer side of the front end of the locking pin corresponding to the front side of the locking plate.

[0010] The left side of the upper part of the locking plate may be provided with a mounting groove opening to the left, and a pressing plate is sleeved in the mounting groove.

[0011] The utility model has a reasonable and compact structure. When installing, the air sealing ring of the Roots vacuum pump is sleeved into the air sealing ring sleeve, and then the air sealing ring sleeve is placed in the spring steel belt, and then the distance between the left handle and the right handle is reduced, so that the outer side of the air sealing ring of the Roots vacuum pump on the air sealing ring sleeve is fitted with the inner side of the spring steel belt, and then the left handle and the right handle are fixed together by a locking component, and the clamped air sealing ring sleeve is facing the wallboard cylinder body hole according to the installation direction, and then the air sealing ring sleeve and the air sealing ring of the Roots vacuum pump can be easily installed into the wallboard cylinder body by gently patting with the palm of the hand. The operation is simple, the installation operation of the air sealing ring of the Roots vacuum pump is simplified, the installation difficulty of the air sealing ring and the air sealing ring sleeve of the Roots vacuum pump is reduced, and the maintenance work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a schematic diagram of the main structure of embodiments one to five of the present utility model.

[0013] Attached Figure 2 For attachment Figure 1 Schematic diagram of the enlarged structure of the front view of the middle locking plate.

[0014] The codes in the accompanying drawings are: 1 is a spring steel strip, 2 is a left handle, 3 is a right handle, 4 is a locking pin, 5 is a locking plate, 6 is a locking groove, 7 is an arc transition surface, 8 is a limit ring, and 9 is a pressure plate. DETAILED DESCRIPTION

[0015] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0016] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0017] The present invention is further described below in conjunction with the embodiments and drawings:

[0018] Embodiment 1: As shown in the attached Figure 1 , 2 As shown, the Roots vacuum pump gas seal ring installation tool includes a spring steel belt 1, a left handle 2, a right handle 3 and a locking assembly. The spring steel belt 1 is in an arc shape with an opening downward. The left handle 2 is fixed to the outside of the first end of the elastic ring steel belt. The lower part of the left handle 2 is inclined to the left relative to the upper part. The right handle 3 with the same structure as the left handle 2 and symmetrically arranged is fixed to the outside of the second end of the spring steel belt 1. The lower parts of the left handle 2 and the right handle 3 are provided with locking assemblies for adjusting the distance between the left handle 2 and the right handle 3.

[0019] According to the requirements, the width of the spring steel strip 1 is smaller than the width of the air sealing ring, the spring steel strip 1 can be bent and deformed, and the spring steel strip 1 is made of existing well-known materials, such as phosphor bronze, tin bronze, 65mn, 55Si2Mn, 60Si2MnA, 55SiMnVB, 55SiMnMoV, 60CrMn, 60CrMnB, 302, and 316 flat steel strips. During installation, the Roots vacuum pump air sealing ring is sleeved into the air sealing ring sleeve, and then the air sealing ring sleeve is placed into the spring steel belt 1, and then the distance between the left handle 2 and the right handle 3 is reduced, so that the outer side of the Roots vacuum pump air sealing ring on the air sealing ring sleeve is fitted with the inner side of the spring steel belt 1, and then the left handle 2 and the right handle 3 are fixed together by the locking assembly, and the clamped air sealing ring sleeve is facing the wallboard cylinder body hole according to the installation direction, and then the air sealing ring sleeve and the Roots vacuum pump air sealing ring can be easily installed into the wallboard cylinder body by gently patting with the palm. The operation is simple, simplifies the installation operation of the Roots vacuum pump air sealing ring, reduces the difficulty of installing the Roots vacuum pump air sealing ring and the air sealing ring sleeve, and improves the maintenance work efficiency.

[0020] The above-mentioned Roots vacuum pump gas seal ring installation tool can be further optimized and / or improved according to actual needs:

[0021] Embodiment 2: As an optimization of the above embodiment, as shown in the attached Figure 1 , 2 As shown, the locking assembly includes a locking pin 4 and a locking plate 5. The locking pin 4 is fixedly installed on the front lower side of the left handle 2, and the locking plate 5 is rotatably installed on the front lower side of the right handle 3. A plurality of locking grooves 6 that pass through the front and back are arranged at intervals on the left and right sides of the lower side of the locking plate 5, and the locking pin 4 is clamped in one of the locking grooves 6.

[0022] During use, through such an arrangement, when the distance between the left handle 2 and the right handle 3 is adjusted so that the arc of the spring steel belt 1 matches the outer ring surface of the Roots vacuum pump gas sealing ring, the locking pin 4 is clamped in the corresponding locking groove 6, so that the left handle 2 and the right handle 3 can be fixed to prevent the left handle 2 and the right handle 3 from separating from each other when the gas sealing ring sleeve and the Roots vacuum pump gas sealing ring are installed, so that the Roots vacuum pump gas sealing ring falls off, resulting in installation failure. At the same time, this fixes the left handle 2 and the right handle 3, frees both hands when installing the gas sealing ring sleeve and the Roots vacuum pump gas sealing ring, and reduces the difficulty of installation.

[0023] Embodiment 3: As an optimization of the above embodiment, as shown in the attached Figure 1 , 2 As shown, the locking pin 4 is circular, the locking groove 6 is V-shaped with an opening downward, and an arc transition surface 7 matching the locking pin 4 is provided between the two sides of the locking groove 6. The lower part of the right side and the left side of the locking groove 6 are both inclined to the right relative to the upper part.

[0024] During use, through such an arrangement, the locking pin 4 is clamped in the locking groove 6 to prevent the spring steel belt 1 from changing direction and falling off from the locking groove 6, causing the spring steel belt 1 to stretch and separate from the gas sealing ring sleeve and the Roots vacuum pump gas sealing ring, thereby improving the stability of the gas sealing ring sleeve and the Roots vacuum pump gas sealing ring during installation.

[0025] Embodiment 4: As an optimization of the above embodiment, as shown in the attached Figure 1 As shown, a limiting ring 8 is fixed to the outer side of the front end of the locking pin 4 corresponding to the front side position of the locking plate 5.

[0026] During use, such an arrangement can ensure that the locking pin 4 is reliably clamped in the locking groove 6, so that the locking pin 4 and the locking plate 5 are reliably connected together, thereby improving the installation efficiency of the gas sealing ring sleeve and the gas sealing ring of the Roots vacuum pump.

[0027] Embodiment 5: As an optimization of the above embodiment, as shown in the attached Figure 1 , 2 As shown, a mounting groove opening to the left is provided on the upper left side of the locking plate 5, and a pressing plate 9 is mounted in the mounting groove.

[0028] According to the requirements, the pressing plate 9 and the installation groove are both rectangular. During use, by setting the pressing plate 9, when the air-sealing ring sleeve and the Roots vacuum pump air-sealing ring are installed in the spring steel belt 1, the pressing plate 9 is taken out, and after the rear side of the pressing plate 9 contacts the front side of the air-sealing ring sleeve, the pressing plate 9 is pressed backward, so that the air-sealing ring sleeve and the Roots vacuum pump air-sealing ring can be pressed into the wallboard cylinder body, so that the end face of the air-sealing ring sleeve is evenly stressed, and the air-sealing ring sleeve is prevented from tilting due to uneven stress and rubbing against the wallboard cylinder body, causing the inner wall of the wallboard cylinder body to be stretched, and it can also prevent the hand from being crushed when pressing.

[0029] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A Roots vacuum pump gas seal ring installation tool, characterized in that It includes a spring steel belt, a left handle, a right handle and a locking assembly. The spring steel belt is in an arc shape with an opening downward. The left handle is fixed to the outside of the first end of the elastic ring steel belt. The lower part of the left handle is inclined to the left relative to the upper part. The right handle with the same structure as the left handle and symmetrically arranged is fixed to the outside of the second end of the spring steel belt. The lower parts of the left handle and the right handle are provided with locking assemblies for adjusting the distance between the left handle and the right handle.

2. The Roots vacuum pump gas seal ring installation tool according to claim 1, characterized in that The locking assembly includes a locking pin and a locking plate. The locking pin is fixedly installed on the front lower part of the left handle, and the locking plate is rotatably installed on the front lower part of the right handle. A number of locking grooves that pass through the front and back are arranged at intervals on the left and right sides of the lower side of the locking plate, and the locking pin is clamped in one of the locking grooves.

3. The Roots vacuum pump gas seal ring installation tool according to claim 2, characterized in that The locking pin is circular, the locking groove is V-shaped with an opening facing downward, and an arc transition surface matching the locking pin is arranged between two side surfaces of the locking groove.

4. The Roots vacuum pump gas seal ring installation tool according to claim 3, characterized in that The lower parts of the right side surface and the left side surface of the locking groove are both inclined to the right relative to the upper part.

5. The Roots vacuum pump gas seal ring installation tool according to claim 2, 3 or 4, characterized in that A limiting ring is fixed on the outer side of the front end of the locking pin corresponding to the front side position of the locking plate.

6. The Roots vacuum pump gas seal ring installation tool according to claim 1, 2, 3 or 4, characterized in that A mounting groove opening to the left is arranged on the left side of the upper part of the locking plate, and a pressing plate is sleeved in the mounting groove.

7. The Roots vacuum pump gas seal ring installation tool according to claim 5, characterized in that A mounting groove opening to the left is arranged on the left side of the upper part of the locking plate, and a pressing plate is sleeved in the mounting groove.

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