Fixture for compressor impeller
By designing a fixture for impeller processing, clamping is achieved using telescopic motors and hinge structures, the existing fixture structure is complex and difficult to fix the impeller, improving machining accuracy and simplifying the maintenance process.
Patent Information
- Application Number
- CN202421322628.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-12
AI Technical Summary
During the impeller processing process, the existing fixtures are complex in structure and difficult to fix the impeller, resulting in reduced processing accuracy or damage to the impeller, inconvenient maintenance and large footprints.
A compressor impeller clamp is designed, including a first connecting rod and a second connecting rod, and a telescopic sleeve rod is provided between them. The telescopic rod is driven by a telescopic motor, and clamping is achieved using a hinge structure. The clamp is arc-shaped to adapt to the shape of the impeller.
The fixture is simple in structure, easy to repair, and has a small footprint. It achieves clamping effect through a telescopic motor, avoiding loosening and damage to the impeller and improving machining accuracy.
Smart Images

Figure CN222627520U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressor equipment, in particular to a clamp for a compressor impeller. Background Art
[0002] The impeller refers to the wheel disk with moving blades, which is a component of the impulse steam turbine rotor, and can also refer to the general term for the wheel disk and the rotating blades installed on it. Impellers can be classified according to their shape and opening and closing conditions.
[0003] During the processing of the impeller, the impeller needs to be clamped and fixed. If the impeller cannot be fixed well, it is easy for the impeller to become loose during the processing, resulting in reduced impeller processing accuracy and even damage to the impeller during the processing. The existing fixture has a complex structure, which is not conducive to maintenance after damage, and occupies a large area, which is not conducive to production operations. Utility Model Content
[0004] The purpose of the utility model is to provide a clamp for a compressor impeller to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamp for a compressor impeller, comprising a first connecting rod and a second connecting rod, two telescopic sleeve rods are arranged between the first connecting rod and the second connecting rod, a plurality of fixing seats are welded to the inner side of the first connecting rod and the second connecting rod at the position of the telescopic sleeve rod, a first clamping plate and a second clamping plate are fixed to the top of the first connecting rod and the second connecting rod respectively, a telescopic motor is installed at the outer central position of the second connecting rod, a telescopic rod is connected to the telescopic motor, the other end of the telescopic rod is fixedly connected to a connecting shaft, both sides of the connecting shaft are respectively connected to a third hinge through a hinge shaft, the other end of the third hinge is connected to the second hinge and the first hinge through the hinge shaft, and the other ends of the first hinge and the second hinge are respectively fixed to the fixing seats through the hinge shaft.
[0006] Preferably, the telescopic sleeve rod is respectively arranged at both ends of the first connecting rod and the second connecting rod and fixed with bolts.
[0007] Preferably, the telescopic rod passes through the central position of the second connecting rod and is fixedly connected to the external telescopic motor.
[0008] Preferably, the adjacent sides of the first clamping plate and the second clamping plate are arranged in an arc shape.
[0009] Preferably, the first hinge, the second hinge and the third hinge are provided in two groups, which are respectively arranged on both sides of the connecting shaft.
[0010] Preferably, the first connecting rod and the second connecting rod are fixed to the telescopic sleeve rod by bolts.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the compressor impeller clamp described in the utility model can achieve the clamping effect by being driven by only one telescopic motor, has a simple structure, is easy to maintain, occupies a small area, and is convenient for processing operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a cross-sectional view of the utility model in a stretched state;
[0013] Figure 2 This is a cross-sectional view of the utility model in a contracted state;
[0014] Figure 3 This is a top view of the external structure of the utility model;
[0015] Figure 4 This is a front view of the main structure of the utility model;
[0016] In the figure: 1. first connecting rod; 2. second connecting rod; 3. telescopic sleeve rod; 4. telescopic motor; 5. first hinge; 6. second hinge; 7. third hinge; 8. hinge shaft; 9. connecting shaft; 10. telescopic rod; 11. first splint; 12. second splint; 13. fixing seat. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-4 The utility model provides a technical solution: a clamp for a compressor impeller, comprising a first connecting rod 1 and a second connecting rod 2, wherein the first connecting rod 1 and the second connecting rod 2 are respectively connected with telescopic sleeve rods 3 at both ends, and the telescopic sleeve rod 3 can be telescoped after being subjected to force, and the first connecting rod 1 and the second connecting rod 2 are fixed to the telescopic sleeve rod 3 by bolts; a telescopic motor 4 is arranged at the central position of the outer side of the second connecting rod 2, and a telescopic rod 10 is arranged at the central position of the inner side of the second connecting rod 2, and the telescopic rod 10 passes through the second connecting rod 2 and is fixedly connected with the telescopic motor 4, and the telescopic motor 4 can drive the telescopic rod 10 to extend and retract after being started.
[0019] The other end of the telescopic rod 10 is fixed with a connecting shaft 9, and the two ends of the connecting shaft 9 are respectively provided with a third hinge 7. The connecting shaft 9 and the third hinge 7 are connected by a hinge shaft 8, and the hinge shaft 8 can rotate. The other end of the third hinge 7 is connected with a first hinge 5 and a second hinge 6 through the hinge shaft 8. The first hinge 5 and the second hinge 6 are respectively oriented toward the first connecting rod 1 and the second connecting rod 2. The other ends of the first hinge 5 and the second hinge 6 are fixed on a fixed seat 13 through the hinge shaft 8. The fixed seat 13 is arranged on the inner side of the first connecting rod 1 and the second connecting rod 2 near the telescopic sleeve 3.
[0020] A first clamping plate 11 and a second clamping plate 12 are fixed to the top of the first connecting rod 1 and the second connecting rod 2, respectively. The adjacent sides of the first clamping plate 11 and the second clamping plate 12 are arc-shaped and are used to clamp the impeller.
[0021] The working principle of the utility model is as follows: the telescopic motor is contracted to drive the telescopic rod to retract, after the telescopic rod is retracted, the third hinge moves accordingly, pulling the first hinge to move, the movement of the first hinge drives the first connecting rod to move, and at the same time the telescopic sleeve rod is shortened; the first clamping plate and the second clamping plate above the first connecting rod and the second connecting rod are then moved closer to clamp the impeller.
[0022] 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 clamp for a compressor impeller, characterized in that: The invention comprises a first connecting rod (1) and a second connecting rod (2), two telescopic sleeve rods (3) are arranged between the first connecting rod (1) and the second connecting rod (2), a plurality of fixing seats (13) are welded on the inner sides of the first connecting rod (1) and the second connecting rod (2) near the telescopic sleeve rods (3), a first clamping plate (11) and a second clamping plate (12) are fixed on the tops of the first connecting rod (1) and the second connecting rod (2), a telescopic motor (4) is installed at the central position of the outer side of the second connecting rod (2), a telescopic rod (10) is connected to the telescopic motor (4), the other end of the telescopic rod (10) is fixedly connected to a connecting shaft (9), both sides of the connecting shaft (9) are respectively connected to a third hinge (7) via a hinge shaft (8), the other end of the third hinge (7) is connected to a second hinge (6) and a first hinge (5) via a hinge shaft (8), and the other ends of the first hinge (5) and the second hinge (6) are respectively fixed to the fixing seats (13) via the hinge shaft (8).
2. A clamp for a compressor impeller according to claim 1, characterized in that: The telescopic sleeve rod (3) is respectively arranged at both ends of the first connecting rod (1) and the second connecting rod (2), and is fixed by bolts.
3. A clamp for a compressor impeller according to claim 2, characterized in that: The telescopic rod (10) passes through the central position of the second connecting rod (2) and is fixedly connected to the external telescopic motor (4).
4. The clamp for a compressor impeller according to claim 1, characterized in that: Adjacent sides of the first clamping plate (11) and the second clamping plate (12) are arranged in an arc shape.
5. The clamp for a compressor impeller according to claim 1, characterized in that: The first hinge (5), the second hinge (6) and the third hinge (7) are provided in two groups, which are respectively arranged on both sides of the connecting shaft (9).
6. The clamp for a compressor impeller according to claim 1, characterized in that: The first connecting rod (1) and the second connecting rod (2) are fixed to the telescopic sleeve rod (3) by means of bolts.