Maintenance tool for horizontal rotary pushing centrifugal machine
Through the combined design of clamping parts and traction parts, the damage problem during the disassembly of sliding bearings of horizontal rotary push centrifuge is solved, the protection and maintenance cost of sliding bearings is reduced, and the applicability and operating efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202422138261.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The prior art can easily cause damage when disassembling the sliding bearings of horizontal rotary push centrifuges, resulting in high consumption and economic losses.
采用卡紧件和牵引件的组合设计,通过卡紧滑动轴承外圈并利用螺杆驱动滑动轴承从空心轴内抽离,避免直接敲击滑动轴承端面。
It effectively avoids damage to sliding bearings, extends its service life, reduces maintenance costs, reduces workload, and improves the versatility and scope of application of tooling.
Smart Images
Figure CN223071222U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical tooling, in particular to a maintenance tooling for a horizontal rotary pusher centrifuge. Background Art
[0002] Horizontal rotary pusher centrifuge is an important equipment used in industrial separation process. It is widely used in chemical, pharmaceutical, food processing, mineral processing and other industries. This type of centrifuge mainly uses the centrifugal force generated by high-speed rotation to separate solids and liquids. Its core parts are as follows: Figure 1 As shown, it includes a push shaft 1, a hollow shaft 2, and a copper sleeve 3. A sliding bearing 4 for supporting the reciprocating motion of the push shaft 1 is installed at the front end and the rear end of the hollow shaft 2 respectively. Two symmetrical key bars 5 are installed between the hollow shaft 2 and the push shaft 1. The hollow shaft 2 is used to drive the push shaft 1 to rotate in a key transmission manner.
[0003] When the horizontal rotary pusher centrifuge is inspected or troubleshooted daily, if the sliding bearing 4 in the hollow shaft 2 needs to be removed, the knocking method is generally used for removal, specifically, the pusher shaft 1 is reciprocated so that the two key strips 5 on the pusher shaft 1 hit the outer ring of the sliding bearing 4 for many times, so that it gradually separates from the hollow shaft 2. However, the sliding bearing 4 is easily damaged when the knocking method is used to remove it, because the material used to manufacture the sliding bearing 4 is softer than other parts in the centrifuge. After experiencing several collisions, the sliding bearing 4 is usually no longer usable after being removed, and a new sliding bearing 4 needs to be replaced. The high consumption of the sliding bearing 4 brings huge economic losses to the production unit. Utility Model Content
[0004] The utility model provides a horizontal rotary pusher centrifuge maintenance tool, which can solve the technical problem that the sliding bearing in the hollow shaft is easily damaged when the sliding bearing is disassembled by knocking method.
[0005] This application provides the following technical solutions:
[0006] A maintenance tool for a horizontal rotary pusher centrifuge comprises a fixing part, a plurality of fixing parts for clamping the outer ring of a sliding bearing, and a traction part detachably connected to the fixing part; the fixing part has a T-shaped cross section, and comprises a fixed chuck and a fixed pin which are fixedly connected, and the diameter of the fixed pin is smaller than the diameter of the fixed chuck; the edge of the fixing part is set to be an arc that fits the inner wall of the outer ring of the bearing, and when the plurality of fixing parts are combined together, a clamping hole for the fixing pin to pass through is formed in the center of the plurality of fixing parts, and when the fixing pin passes through the clamping hole, the fixing chuck is clamped and fixed on the end faces of the plurality of fixing parts.
[0007] Beneficial effects:
[0008] 1. Avoid damaging the end face of the sliding bearing: By using a clamping component to clamp the outer ring of the sliding bearing, and then cooperating with a traction component and a fixing component to traction the clamping component and the bearing outer ring outwards from the hollow shaft. Compared with the traditional solution of repeatedly knocking the end face of the sliding bearing outer ring with a key, it can avoid damaging the end face of the sliding bearing, extend the service life of the sliding bearing, reduce the consumption of the sliding bearing for maintaining the normal operation of the horizontal rotary pusher centrifuge, control the maintenance cost, effectively reduce the operating expenses of the production unit. At the same time, due to the reduction of the loss of the sliding bearing, the workload of the staff is reduced, and they can focus more on other key maintenance tasks.
[0009] 2. Good general performance: Adopting the modular design concept, setting several clamping components for quick adjustment and combined use, which can be applicable to the outer rings of sliding bearings with different calibers, further expanding the application scope of this tooling. By increasing the number of clamping components and adjusting their layout, the tooling can adapt to various sliding bearings from small to large, from light to heavy, so as to meet the needs of different industrial applications.
[0010] Furthermore, as an improvement, two clamping components are provided and both are semi-circular arcs.
[0011] Beneficial effect: The combined use of two semi-circular arc clamping components is beneficial to smoothly insert the clamping component into the card slot of the sliding bearing outer ring and stably clamp and fix the sliding bearing outer ring.
[0012] Furthermore, as an improvement, a plane is cut at each end of the semi-circular arc clamping component, and it is required that the plane does not contact the inner wall of the bearing outer ring.
[0013] Beneficial effect: Cutting a plane at each end of the semi-circular arc clamping component further reduces the area of the clamping component, which is beneficial to improving the convenience for the staff to insert the clamping component into the card slot of the sliding bearing outer ring.
[0014] Furthermore, as an improvement, the traction component is a screw, and the screw is threadedly connected with the fixing component.
[0015] Beneficial effect: Using the screw to traction the fixing component to drive the clamping component and the sliding bearing in sequence, so that the sliding bearing can be quickly pulled out from the hollow shaft, which is beneficial for the staff to repair or maintain it. The screw and the fixing component are detachably connected by means of threaded connection, and the operation is simple, which is beneficial to realize quick disassembly and assembly.
[0016] Furthermore, an annular inclined plane is cut on the side of the fixing pin away from the fixed chuck.
[0017] Beneficial effect: The reduced opening formed by the annular inclined plane is more convenient for positioning, which is beneficial to making the fixing pin more smoothly inserted into the card hole formed by several clamping components.
[0018] Further, as an improvement, four clamping members are provided and each is a 1 / 4 arc shape.
[0019] Beneficial effects: Compared with the solution of setting two semi-circular clamping members, the four 1 / 4 arc-shaped clamping members can be more evenly distributed in the card slots inside the outer ring of the sliding bearing, thereby applying pressure more evenly, reducing the problem of local stress concentration. At the same time, their positions and angles can be adjusted more easily to achieve a better effect of fitting the inner wall of the outer ring of the sliding bearing. Description of the Drawings
[0020] Figure 1 is a cross-sectional view of the core part of a horizontal rotary pusher centrifuge in the prior art;
[0021] Figure 2 is a front view of the clamping member in Embodiment 1 of the present invention;
[0022] Figure 3 is Figure 2 a cross-sectional view from the right side perspective, where the part showing the clamping member is Figure 2 the A-A cross-sectional view of;
[0023] Figure 4 is the corresponding Figure 2 front view in Embodiment 2 of the present invention. Detailed Description of the Specific Embodiment
[0024] The following is a further detailed description through specific embodiments:
[0025] The reference signs in the drawings of the specification include: pusher shaft 1, hollow shaft 2, copper sleeve 3, sliding bearing 4, card slot 41, key bar 5, fixing member 6, fixing chuck 61, fixing pin 62, inclined surface 621, internal thread hole 63, clamping member 7, edge 71, plane 72, card hole 8.
[0026] Embodiment 1
[0027] As Figure 2 - Figure 3 shown, a maintenance tooling for a horizontal rotary pusher centrifuge includes a fixing member 6, two clamping members 7 for clamping the card slots 41 inside the outer ring of the sliding bearing 4, and a traction member threadedly connected to the fixing member 6.
[0028] In this embodiment, the fixing member 6 is a semi-circular metal member with a T-shaped cross-section, including an integrally formed fixing chuck 61 and a fixing pin 62. The diameter of the fixing pin 62 is smaller than that of the fixing chuck 61. An annular inclined surface 621 is cut on the side of the fixing pin 62 away from the fixing chuck 61 to facilitate inserting it into the clamping member 7. An internal thread hole 63 passing through the fixing chuck 61 and the fixing pin 62 is provided at the center of the fixing member 6.
[0029] In this embodiment, the edge 71 of the clamping member 7 is arranged as an arc that fits the inner wall of the outer ring of the bearing. When the two clamping members 7 face each other and are combined together, a circular clamping hole 8 for the fixing pin 62 to pass through is formed at the center of the two clamping members 7. When the fixing pin 62 passes through the clamping hole 8, the bottom surface of the fixed chuck 61 can be tightly clamped and fixed on the end surfaces of the two clamping members 7. To facilitate the smooth insertion of the clamping member 7 into the clamping groove 41 in the outer ring of the sliding bearing 4, a plane 72 is cut at each end of the semi-circular arc-shaped clamping member 7, and it is required that when the arc-shaped edge 71 of the clamping member 7 fits the inner wall of the outer ring of the sliding bearing 4, this plane 72 does not contact the inner wall of the outer ring of this sliding bearing 4.
[0030] In this embodiment, the traction member is a screw rod, and the screw rod is threadedly connected to the internal threaded hole 63 at the center of the fixing member 6. Since the screw rod is relatively common in the prior art, it is not shown in the drawings.
[0031] The specific application process is as follows:
[0032] During use, in combination with Figure 1 and Figure 2 as shown, first axially move the material pushing shaft 1 to the left so that the clamping groove 41 on the outer ring of the bearing is exposed outside the material pushing shaft 1. Then, horizontally place the pre-assembled screw rod and the fixing member 6 inside the hollow shaft 2 to the left of the clamping groove 41. Then, insert the edges 71 of the two clamping members 7 into the clamping groove 41 on the outer ring of the sliding bearing 4 and clamp them tightly. Then, pull the screw rod to the right so that the right end face of the fixing member 6 abuts against the left end face of the clamping member 7. Finally, pull the sliding bearing 4 out of the hollow shaft 2.
[0033] Embodiment 2
[0034] The difference between this embodiment and Embodiment 1 is that, as Figure 4 shown, four clamping members 7 are provided and are all 1 / 4 arc-shaped metal parts. When the four clamping members 7 are evenly distributed around the center of the outer ring of the sliding bearing 4 and their arc-shaped edges 71 are inserted into the clamping groove 41 of the outer ring of the sliding bearing 4 at the same time, the four clamping members 7 form a circular clamping hole 8 for the fixing pin 62 to pass through as in Embodiment 1.
[0035] The above are only the embodiments of the present invention. The present invention is not limited to the fields involved in this implementation case. Common knowledge such as the specific structures and characteristics known in the solution is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.
Claims
1. A maintenance tooling for a horizontal rotary pusher centrifuge, characterized in that: It includes a fixing part, several clamping parts for clamping the outer ring of the sliding bearing, and a traction part detachably connected to the fixing part; the cross-section of the fixing part is T-shaped and includes a fixedly connected fixing chuck and a fixing pin, and the diameter of the fixing pin is smaller than that of the fixing chuck; the edge of the clamping part is set as an arc conforming to the inner wall of the bearing outer ring. When several clamping parts are combined together, a clamping hole for the fixing pin to pass through is formed in the center of the several clamping parts. When the fixing pin passes through the clamping hole, the fixing chuck is clamped and fixed on the end faces of the several clamping parts.
2. The maintenance tooling for a horizontal rotary pusher centrifuge according to claim 1, characterized in that: Two clamping parts are provided and both are semi-circular.
3. The maintenance tooling for a horizontal rotary pusher centrifuge according to claim 2, wherein: A plane is cut at each end of the semi-circular clamping part, and it is required that the plane does not contact the inner wall of the bearing outer ring.
4. A maintenance tooling for a horizontal rotary pusher centrifuge according to claim 3, characterized in that: The traction part is a screw rod, and the screw rod is threadedly connected to the fixing part.
5. The maintenance tooling for a horizontal rotary pusher centrifuge according to claim 4, characterized in that: An annular inclined plane is cut on the side of the fixing pin away from the fixing chuck.
6. The maintenance tooling for a horizontal rotary pusher centrifuge according to claim 1, wherein: Four clamping parts are provided and both are 1 / 4 circular.