阅读说明：本技术 一种立式管道泵用便拆式联轴器 (Conveniently-disassembled coupling for vertical pipeline pump ) 是由 王小锋 李家虎 万仁伟 李晓斌 李新 张卫 童杰 丁康 常显锋 于 2019-10-28 设计创作，主要内容包括：本发明公开了一种立式管道泵用便拆式联轴器,包括两个分别套在主动轴连接端和从动轴连接端的半联轴器,每个半联轴器内壁分别与所连传动轴通过平键连接,两个半联轴器的对接端设有连接法兰；还包括用于连接两个半联轴器的中间节；所述中间节的两端均为连接法兰,所述中间节两端的连接法兰分别于两个半联轴器对接端的连接法兰通过螺钉固定,且每个连接螺钉与连接法兰的螺钉孔之间设有弹性套。本发明的泵用联轴器结构简单、拆装方便,弹性套采用内外金属圈中间填充橡胶,联轴器使用寿命长。(The invention discloses a conveniently-disassembled coupling for a vertical pipeline pump, which comprises two half couplings sleeved at the connecting end of a driving shaft and the connecting end of a driven shaft respectively, wherein the inner wall of each half coupling is connected with a connected transmission shaft through a flat key respectively, and the butt joint ends of the two half couplings are provided with connecting flanges; the middle joint is used for connecting the two half couplings; the two ends of the middle section are both connecting flanges, the connecting flanges at the two ends of the middle section are respectively fixed on the connecting flanges at the butt joint ends of the two half couplers through screws, and an elastic sleeve is arranged between each connecting screw and the screw hole of each connecting flange. The pump coupling has the advantages of simple structure and convenient assembly and disassembly, the elastic sleeve is filled with rubber between the inner metal ring and the outer metal ring, and the service life of the coupling is long.)

1. A kind of vertical pipeline pump uses the easy-to-detach type coupling, including two half-couplings of the connecting end of driving shaft and driven shaft separately, the inner wall of each half-coupling is connected with drive shaft connected through the flat key separately, the butt joint end of two half-couplings has connecting flanges; the method is characterized in that: the middle joint is used for connecting the two half couplings; the two ends of the middle section are both connecting flanges, the connecting flanges at the two ends of the middle section are respectively fixed on the connecting flanges at the butt joint ends of the two half couplers through screws, and an elastic sleeve is arranged between each connecting screw and the screw hole of each connecting flange.

2. The detachable coupling for a vertical pipe pump as claimed in claim 1, wherein: the two cylindrical supporting sleeves of the elastic sleeve are made of metal materials.

3. The detachable coupling for a vertical pipe pump as claimed in claim 1, wherein: the elastic interlayer of the elastic sleeve is made of rubber materials.

4. The detachable coupling for a vertical pipe pump as claimed in claim 1, wherein: the elastic interlayer in the elastic sleeve is flush with the two axial ends of the outer layer supporting sleeve, and the two axial ends of the inner layer supporting sleeve are longer than the elastic interlayer.

5. The detachable coupling for vertical pipe pump according to any one of claims 1 to 4, wherein: the butt joint surface of the two half-coupling connecting flanges is provided with a threaded blind hole; screw through holes matched with the two half-coupling butt joint end connecting flanges are respectively processed on the connecting flanges at the two ends of the middle section, and an elastic sleeve mounting groove is processed at the outer end of each screw through hole; and the outer ends of the screw through holes of the connecting flanges at the two ends of the middle section are provided with elastic sleeves, and each screw penetrates through the screw through hole and the elastic sleeve on the connecting flange at the two ends of the middle section and is screwed into the threaded blind hole on the connecting flange at the butt joint end of the half coupling at the same side.

6. The detachable coupling for vertical pipe pump according to any one of claims 1 to 4, wherein: the driving shaft is connected with the sleeved half couplers through radial screws, and the driven shaft is connected with the sleeved half couplers through radial screws.

Technical Field

The invention relates to a conveniently-disassembled coupling for a vertical pipeline pump, and belongs to the technical field of mechanical transmission.

Background

The vertical pipeline pump is a centrifugal pump capable of conveying clear liquid or conveying turbid liquid containing a small amount of solid particles, and is widely applied to industries such as petrochemical industry, papermaking, thermal power generation, seawater desalination, industrial water circulation, cooling tower water supply, diesel oil conveying, regional centralized heat supply, regional centralized cooling and the like. The shaft coupling is the main driving medium of vertical tubing pump, and the shaft coupling of traditional vertical tubing pump includes that two overlap respectively at the half-couplings of driving shaft link and driven end axle link, and every half-coupling is the cylinder adapter sleeve, and every half-coupling inner wall passes through the parallel key with the transmission shaft that links respectively and is connected, and the butt joint end of two half-couplings is equipped with flange, and the flange of two half-couplings passes through the screw nut to be fixed, realizes the transmission of driving shaft and driven shaft. In the long-term rotation process of the driving shaft and the driven shaft, radial vibration can inevitably occur, so that shearing force is formed on the screws of the two connecting flanges of the fixed coupling, the screws and the nuts are loosened, and the radial vibration effect is aggravated. In order to solve the problem, a rubber elastic sleeve is arranged between each connecting screw and the screw hole of the connecting flange so as to eliminate the radial vibration effect; however, the rubber elastic sleeve is easy to damage and needs to be replaced frequently. In addition, the coupler of the traditional vertical pipeline pump directly connects the driving shaft connecting end and the driven shaft connecting end, and is inconvenient to operate when needing to be disassembled and assembled.

Disclosure of Invention

The invention aims to solve the problems that a rubber elastic sleeve is easy to damage, the pump is inconvenient to disassemble and assemble and the like in the coupling structure of the traditional vertical pipeline pump, and provides a conveniently-disassembled coupling for the vertical pipeline pump.

The purpose of the invention is realized by the following technical scheme:

the invention discloses a conveniently-disassembled coupling for a vertical pipeline pump, which comprises two half couplings sleeved on a driving shaft connecting end and a driven shaft connecting end respectively, wherein the inner wall of each half coupling is connected with a connected transmission shaft through a flat key respectively, and the butt joint end of the two half couplings is provided with a connecting flange; the middle joint is used for connecting the two half couplings; the two ends of the middle section are both connecting flanges, the connecting flanges at the two ends of the middle section are respectively fixed on the connecting flanges at the butt joint ends of the two half couplers through screws, and an elastic sleeve is arranged between each connecting screw and the screw hole of each connecting flange.

The two cylindrical supporting sleeves of the elastic sleeve are made of metal materials.

The elastic interlayer of the elastic sleeve is made of rubber materials.

Elastic interlayer flushes with the axial both ends of outer layer support cover in the elastic sleeve, and elastic interlayer is good at inner layer support cover axial both ends, and the shearing effect of screw to elastic interlayer tip when avoiding radial tremble.

The butt joint surface of the two half-coupling connecting flanges is provided with a threaded blind hole;

screw through holes matched with the two half-coupling butt joint end connecting flanges are respectively processed on the connecting flanges at the two ends of the middle section, and an elastic sleeve mounting groove is processed at the outer end of each screw through hole; and the outer ends of the screw through holes of the connecting flanges at the two ends of the middle section are provided with elastic sleeves, and each screw penetrates through the screw through hole and the elastic sleeve on the connecting flange at the two ends of the middle section and is screwed into the threaded blind hole on the connecting flange at the butt joint end of the half coupling at the same side.

The driving shaft is connected with the sleeved half couplers through radial screws, and the driven shaft is connected with the sleeved half couplers through radial screws.

Has the advantages that:

the coupling and the corresponding transmission shaft are fixed on the shaft through radial screws, so that loose matching can be adopted between the driving end and the driven end half-couplings and the shaft, and the driving end and the driven end half-couplings are easy to disassemble and assemble.

The coupler adopts the lengthened middle section, the middle section is firstly removed during disassembly, so that a larger axial space is generated in the axial direction, the pump set can be overhauled and maintained without moving a motor and a pipeline, and the coupler is convenient to install and disassemble and easy to maintain.

The elastic sleeve of the coupler adopts the special design of filling rubber between the inner metal ring and the outer metal ring, avoids direct contact of a rubber part with connecting pieces such as screws and flanges, can better protect the rubber part, prolongs the service life of the coupler, simultaneously enables the stress of the rubber part to be more uniform, can better absorb vibration, and compensates installation deviation.

Drawings

FIG. 1 is a schematic structural view of a coupling for a pump according to the present invention;

FIG. 2 is a schematic structural diagram of an elastic sleeve in the coupling for a pump according to the present invention;

wherein: 1-driving end half coupling, 2-first radial screw, 3-driven end half coupling, 4-second radial screw, 5-elastic sleeve and 6-middle section; 7-a screw; 51-outer support sleeve; 52-an elastic interlayer; 53-inner support jacket.

Detailed Description

The invention is further described with reference to the following figures and examples: