Impeller outer side surrounding type reinforcing structure
By using a ring-shaped reinforcement structure around the impeller, and through the cooperation of a fastening mechanism and a transmission ring, a secondary fastening of the impeller and shaft is achieved, which solves the problem of impeller vibration and misalignment during rotation, and improves the stability and service life of the equipment.
Patent Information
- Application Number
- CN202520424307.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In traditional impeller installations, the impeller is prone to vibration or displacement during high-speed rotation, which can reduce connection strength or even cause it to fall off, affecting the performance and safety of the equipment.
The impeller adopts an outer-circling reinforcement structure, including a fastening mechanism, a telescopic structure, a transmission ring, and a reinforcement structure. The force generated by tightening the bolts causes the telescopic structure to contract, which in turn pushes the transmission ring and the reinforcement structure to position and clamp the connecting shaft. The cooperation of multiple sets of abutment blocks and transmission blocks achieves secondary fastening to prevent vibration and displacement.
It effectively prevents the impeller from vibrating or shifting during rotation, increases service life, and improves the stability and safety of the equipment.
Smart Images
Figure CN223952881U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model discloses a kind of impeller outside encircling type reinforcing structures, relate to impeller installation technical field. BACKGROUND
[0002] Impeller installation is a very important process, usually related to fan, pump, turbine and other equipment. The correct installation of impeller directly affects the performance, efficiency and safety of the equipment. When installing the impeller, slide the impeller gently onto the shaft. For most fans or pumps, the impeller needs to be connected to the shaft through a keyway. Ensure that the impeller is fully aligned with the keyway of the shaft and is properly secured. Fasteners such as bolts and nuts may be required between the impeller and the shaft. When tightening, ensure uniform force to avoid uneven deformation.
[0003] In traditional impeller installation, such as using fasteners (e.g. bolts, nuts) for fixation, due to the high-speed rotation of the equipment and long use time, the impeller may vibrate or deviate during rotation, and even may fall off due to reduced connection strength, causing damage to the equipment. Therefore, a kind of impeller outside encircling type reinforcing structure is needed to solve the above problems. SUMMARY
[0004] The utility model aims at providing a kind of impeller outside encircling type reinforcing structure, to achieve the effect of increasing the service life by increasing secondary fastening to prevent vibration or deviation of impeller during rotation under traditional impeller connection.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of impeller outside encircling type reinforcing structure, including impeller main part, its characterized in that: connecting shaft is installed at impeller main part center shaft, fastening mechanism is installed outside connecting shaft, and fastening mechanism is fixedly connected with impeller main part;The fastening mechanism includes a bottom plate, a telescopic structure is installed above the bottom plate, a protective shell is installed outside the telescopic structure, a transmission ring is installed above the telescopic structure, a reinforcing structure is installed above the transmission ring, and a ball bearing is installed above the reinforcing structure.
[0006] Preferably, a spring is arranged inside the telescopic structure, the lower end surface of the spring is fixedly connected with the protective shell, the upper end surface of the spring is fixedly connected with the lower end surface of the transmission ring, a clamping block is arranged on the transmission ring, a sliding groove is arranged on the protective shell, the clamping block is slidably connected with the sliding groove, and the lower end surface of the protective shell is attached to the impeller main part.
[0007] Preferably, a connecting ring is installed in the reinforcing structure, the connecting ring is fixedly connected with the transmission ring, a plurality of groups of transmission blocks are arranged above the connecting ring, a fixed ring is arranged in the reinforcing structure, the fixed ring is installed below the ball bearing, a plain bearing is installed at the connection between the fixed ring and the ball bearing, a resisting block is slidably installed in the fixed ring, and the lower end surface of the resisting block is attached to the upper end surface of the transmission block.
[0008] Preferably, the resisting blocks are provided in several groups, and the transmission blocks are provided in several groups, and the number of the resisting blocks is same as that of the transmission blocks.
[0009] Preferably, the lower end surface of the resisting block is provided as an inclined surface, and the upper end surface of the transmission block is provided as an inclined surface.
[0010] Preferably, the shape of the contact surface of the resisting block close to the connecting shaft is a circular arc surface, and the front end of the contact surface of the resisting block close to the connecting shaft is provided with an anti-skid rubber pad.
[0011] Compared with the prior art, the utility model has the beneficial effects that: through the operation personnel tight bolt is with the connecting shaft, the impeller main part produces a impeller main body to the fastening mechanism pressure force, because the ball bearing outer ring is connected with the pump body main part immovably, therefore the pressure force can make the telescopic structure contract, and promote the transmission ring extrusion reinforcing structure, drive the reinforcing mechanism to carry out positioning clamping to the connecting shaft, in the connecting angle of the impeller main body and the connecting shaft corrects, again to it carries out an extrusion reinforcing force, makes the increase secondary fastening prevents the impeller main body in the rotation process will produce vibration or deviation and increases the service life.
[0012] The extrusion force of the bolt tightening will drive the protection shell to move, then extrude the spring, and because the upper end surface of the spring is fixedly connected with the lower end surface of the transmission ring, when the spring moves to the limit, it will drive the transmission ring to move, then extrude the reinforcing structure, and clamp the connecting shaft, and the transmission ring will transmit the force to the connecting ring, so that the connecting ring moves, drives the transmission block to extrude the resisting block, and the extrusion of the transmission block to the resisting block can only make the resisting block extrude the connecting shaft inward along the direction limited by the limiting groove, until the contact surface of the resisting block close to the connecting shaft is attached to the outer wall of the connecting shaft, and then clamped.
[0013] The multiple groups of the resisting blocks and the transmission blocks move simultaneously, and play a positioning correction role for the connection of the impeller main body and the connecting shaft, so as to increase the secondary fastening to prevent the impeller from vibrating or deviating in the rotation process, and increase the service life. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a whole schematic view of the impeller outside surrounding type reinforcing structure;
[0015] Figure 2 It is Figure 1 It is an internal structure view of the impeller outside surrounding type reinforcing structure;
[0016] Figure 3 It is Figure 2 It is an internal structure view of the reinforcing structure
[0017] In the drawings, various reference signs are as follows:
[0018] 1. Impeller body; 2. Connecting shaft; 3. Fastening mechanism; 31. Base plate; 32. Protective shell; 33. Telescopic structure; 331. Spring; 332. Locking block; 333. Slide groove; 34. Transmission ring; 35. Reinforcing structure; 351. Transmission block; 352. Connecting ring; 353. Fixing ring; 354. Contact block; 355. Limiting groove; 36. Ball bearing. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Specific implementation examples:
[0021] like Figure 1 As shown, an impeller outer ring reinforcement structure includes an impeller body 1, a connecting shaft 2 installed at the central shaft of the impeller body 1, and a fastening mechanism 3 installed on the outside of the connecting shaft 2, the fastening mechanism 3 being fixedly connected to the impeller body 1;
[0022] The impeller body 1 is connected to the connecting shaft 2 by bolts, and the impeller body 1 is connected to the fastening mechanism 3 by bolts. The fastening mechanism 3 is sleeved on the outside of the connecting shaft 2. The connecting shaft 2 is connected to the pump body and its driving method is motor-driven rotation.
[0023] like Figure 2 As shown, the fastening mechanism 3 includes a base plate 31, a telescopic structure 33 is installed on the top of the base plate 31, a protective shell 32 is installed on the outside of the telescopic structure 33, a transmission ring 34 is installed on the top of the telescopic structure 33, a reinforcing structure 35 is installed on the top of the transmission ring 34, and a ball bearing 36 is installed on the top of the reinforcing structure 35.
[0024] The telescopic structure 33 is installed inside the protective shell 32. Its main function is to retract the impeller body 1 by the transmission force of the bolt tightening when the impeller body 1 is installed. The transmission ring 34 mainly plays the role of transmitting the impeller force to the reinforcing structure 35. The reinforcing mechanism 35 positions and clamps the shaft. The outer ring of the ball bearing 36 is connected to the pump body (not shown in the figure) and fixed. The inner ring is fixedly connected to the ball bearing 36 and rotates with the rotation of the ball bearing 36.
[0025] The main working principle is that when the impeller body 1 is installed, the ball bearing 36 is first installed on the connecting shaft 2, then the fastening mechanism 3 is sleeved on the connecting shaft 2, then the fastening mechanism 3 is fixedly connected with the impeller body 1 through bolts, and then the impeller body 1 is fixedly connected with the connecting shaft 2 through bolts. When the bolts are tightened to connect the impeller body 1 and the connecting shaft 2, a force of pressing the impeller body 1 towards the fastening mechanism 3 is generated. Because the outer ring of the ball bearing 36 is fixedly connected with the pump body and does not move, the pressing force can make the telescopic structure 33 contract and push the transmission ring 34 to extrude the reinforcing structure 35, so as to drive the reinforcing mechanism 35 to position and clamp the connecting shaft 2. While the connection angle between the impeller body 1 and the connecting shaft 2 is corrected, an extrusion and reinforcement force is applied to increase the secondary fastening to prevent the impeller body 1 from vibrating or deviating during rotation and to increase the service life;
[0026] As shown in Figures 2-3 The telescopic structure 33 is provided with a spring 331, the lower end surface of the spring 331 is fixedly connected with the protective shell 32, the upper end surface of the spring 331 is fixedly connected with the lower end surface of the transmission ring 34, the transmission ring 34 is provided with a clamping block 332, the protective shell 32 is provided with a sliding groove 333, the clamping block 332 is slidably connected with the sliding groove 333, and the lower end surface of the protective shell 32 is attached to the impeller body 1;
[0027] The spring 331 is the main part of the telescopic structure 33. When the bolts are tightened to connect the impeller body 1 and the connecting shaft 2, the extrusion force of the protective shell 32 will drive the protective shell 32 to move, and then extrude the spring 331. Because the upper end surface of the spring 331 is fixedly connected with the lower end surface of the transmission ring 34, when the spring 331 moves to the limit, it will push the transmission ring 34 to move, and then extrude the reinforcing structure to position and clamp the connecting shaft 2. The connection between the sliding groove 333 and the clamping block 332 limits the movement range of the protective shell 32 outside the transmission ring 34, and enhances the stability of the structure;
[0028] The reinforcing structure 35 is provided with a connecting ring 352, the connecting ring 352 is fixedly connected with the transmission ring 34, the connecting ring 352 is provided with a plurality of groups of transmission blocks 351 above, the reinforcing structure 35 is provided with a fixed ring 353, the fixed ring 353 is installed below the ball bearing 36, a plane bearing (not shown in the figure) is installed at the connection between the fixed ring 353 and the ball bearing 36, and a resisting block 354 is slidably installed in the fixed ring 353. The lower end surface of the resisting block 354 is attached to the upper end surface of the transmission block 351;
[0029] When the telescopic structure 33 is extruded to the reinforcing structure 35, the transmission ring 34 transmits force to the connecting ring 352, so that the connecting ring 352 moves with it, driving the transmission block 351 to extrude the abutting block 354, because the ball bearing 36 is connected with the outer machine of the pump, the fixed ring 353 is connected with the ball bearing 36 through the plane bearing, so the position of the fixed ring 353 is fixed and only rotates, so that the extrusion of the transmission block 351 to the abutting block 354 can only make the abutting block 354 extrude the connecting shaft 2 inward along the direction limited by the limiting groove 355 until the contact surface of the abutting block 354 close to the connecting shaft 2 is attached to the outer wall of the connecting shaft 2 until clamping;
[0030] The abutting block 354 is provided with a plurality of groups, and the transmission block 351 is provided with a plurality of groups, and the number of the abutting block 354 and the transmission block 351 is the same;
[0031] The setting makes the movement direction and distance of each abutting block 354 and the transmission block 351 consistent, and they all move to the same axis, which can position and correct the connection between the impeller body 1 and the connecting shaft 2 while clamping;
[0032] The lower end surface of the abutting block 354 is provided as a slope, and the upper end surface of the transmission block 351 is provided as a slope;
[0033] When extruding and abutting, the slope setting makes the abutting block 354 move along the slope on the transmission block 351 and the direction limited by the limiting groove 355, so that the abutting block 354 can only move linearly to the axis center when receiving the extrusion of the transmission block 351;
[0034] The shape of the contact surface of the abutting block 354 close to the connecting shaft 2 is a circular arc surface, and the front end of the contact surface of the abutting block 354 close to the connecting shaft 2 is provided with a non-slip rubber pad;
[0035] The setting of the circular arc surface can make the abutting block 354 more attached to the column-shaped outer surface of the connecting shaft 2 when extruding and clamping, and the non-slip rubber pad can increase the friction force of clamping, that is, increase the stability when clamping, so as to enhance the stability when reinforcing;
[0036] In summary, by the operator tightening the bolt, the impeller body 1 and the connecting shaft 2 are connected, a force is generated to press the impeller body 1 to the fastening mechanism 3, because the outer ring of the ball bearing 36 is fixed with the pump body, the pressing force can make the telescopic structure 33 contract, and push the transmission ring 34 to extrude the reinforcing structure 35, drive the reinforcing mechanism 35 to position and clamp the connecting shaft 2, correct the connection angle of the impeller body 1 and the connecting shaft 2, and then extrude the reinforcing force, so as to increase the secondary fastening to prevent the impeller body 1 from vibrating or deviating during rotation and increase the service life. The extrusion force of the bolt tightening will drive the protective shell 32 to move, and then extrude the spring 331. Because the upper end surface of the spring 331 is fixedly connected with the lower end surface of the transmission ring 34, when the spring 331 moves to the limit, it will push the transmission ring 34 to move, and then extrude the reinforcing structure, so as to position and clamp the connecting shaft 2. The transmission ring 34 transmits the force to the connecting ring 352, so that the connecting ring 352 moves, drives the transmission block 351 to extrude the abutting block 354, and the transmission block 351 extrudes the abutting block 354 only to extrude the connecting shaft 2 inward along the direction limited by the limiting groove 355 until the contact surface of the abutting block 354 close to the connecting shaft 2 is attached to the outer wall of the connecting shaft 2 until clamping. A plurality of abutting blocks 354 and transmission blocks 351 move simultaneously, which plays a positioning and correcting role for the connection of the impeller body 1 and the connecting shaft 2, so as to increase the secondary fastening to prevent the impeller from vibrating or deviating during rotation and increase the service life.
[0037] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions belonging to the present application are within the protection scope of the present application. It should be noted that some improvements and decorations without departing from the principles of the present application are also considered as the protection scope of the present application.
Claims
1. A circumferential reinforcement structure for an impeller, comprising an impeller body (1), characterized in that: A connecting shaft (2) is installed at the central shaft of the impeller body (1), and a fastening mechanism (3) is installed on the outside of the connecting shaft (2). The fastening mechanism (3) is fixedly connected to the impeller body (1). The fastening mechanism (3) includes a base plate (31), a telescopic structure (33) is installed on the top of the base plate (31), a protective shell (32) is installed on the outside of the telescopic structure (33), a transmission ring (34) is installed on the top of the telescopic structure (33), a reinforcing structure (35) is installed on the top of the transmission ring (34), and a ball bearing (36) is installed on the top of the reinforcing structure (35).
2. The impeller outer circumferential reinforcement structure according to claim 1, characterized in that: A spring (331) is provided inside the telescopic structure (33). The lower end face of the spring (331) is fixedly connected to the protective shell (32). The upper end face of the spring (331) is fixedly connected to the lower end face of the transmission ring (34). A locking block (332) is provided on the transmission ring (34). A sliding groove (333) is provided on the protective shell (32). The locking block (332) is slidably connected to the sliding groove (333). The lower end face of the protective shell (32) is in contact with the impeller body (1).
3. The impeller outer circumferential reinforcement structure according to claim 1, characterized in that: A connecting ring (352) is installed in the reinforcing structure (35), and the connecting ring (352) is fixedly connected to the transmission ring (34). Several sets of transmission blocks (351) are arranged above the connecting ring (352). A fixing ring (353) is provided in the reinforcing structure (35), and the fixing ring (353) is installed below the ball bearing (36). A plane bearing is installed at the connection between the fixing ring (353) and the ball bearing (36). An abutting block (354) is slidably installed in the fixing ring (353), and the lower end face of the abutting block (354) is in contact with the upper end face of the transmission block (351).
4. The impeller outer circumferential reinforcement structure according to claim 3, characterized in that: The abutting blocks (354) are provided in several groups, and the transmission blocks (351) are provided in several groups. The number of abutting blocks (354) and transmission blocks (351) is the same.
5. The impeller outer circumferential reinforcement structure according to claim 3, characterized in that: The lower end face of the contact block (354) is set as an inclined surface, and the upper end face of the transmission block (351) is set as an inclined surface.
6. The impeller outer circumferential reinforcement structure according to claim 3, characterized in that: The contact surface of the abutment block (354) near the connecting shaft (2) is an arc surface, and an anti-slip pad is installed on the front end of the contact surface of the abutment block (354) near the connecting shaft (2).