阅读说明：本技术 一种往复泵传动装置 (Reciprocating pump transmission device ) 是由 倪合玉 崔昌昊 倪源 于 2020-08-01 设计创作，主要内容包括：本发明公布了一种往复泵传动装置,主要零部件包括机体、轴、驱动轮、换向轮、往复盘、左导向盘、右导向盘,相关零部件包括换向轮轴承、往复盘轴承、换向轮轴承压板、往复盘轴承压板、导向套、机体左滑缸、机体右滑缸、平键、轴承,往复盘安装左导向盘、右导向盘、导向套,通过机体左滑缸和机体右滑缸约束自由度,轴带动驱动轮旋转,驱动轮推动换向轮绕驱动轮的外圆上下摆动,换向轮推动往复盘沿机体的左滑缸与右滑缸的轴心线运动,驱动轮旋转一周,换向轮的摆动方向改变两次,整个装置随着驱动轮的连续旋转,完成往复运动。(The invention discloses a reciprocating pump transmission device, which mainly comprises a machine body, a shaft, a driving wheel, a reversing wheel, a reciprocating disc, a left guide disc and a right guide disc, wherein related parts comprise a reversing wheel bearing, a reciprocating disc bearing, a reversing wheel bearing plate, a reciprocating disc bearing plate, a guide sleeve, a machine body left sliding cylinder, a machine body right sliding cylinder, a flat key and a bearing.)

1. The utility model provides a reciprocating pump transmission, main spare part includes organism, axle, drive wheel, reverse wheel, reciprocating disc, left positioning disk, right positioning disk, and relevant spare part includes reversing wheel bearing, reciprocating disc bearing, reverse wheel bearing plate, reciprocating disc bearing clamp plate, uide bushing, left sliding cylinder, right sliding cylinder, parallel key, bearing, its characterized in that: the reciprocating disc is provided with a left guide disc, a right guide disc and a guide sleeve, the freedom degree is restricted by a left sliding cylinder of the machine body and a right sliding cylinder of the machine body, the shaft drives the driving wheel to rotate, the driving wheel pushes the reversing wheel to swing up and down around the excircle of the driving wheel, the reversing wheel pushes the reciprocating disc to move along the axial lead of the left sliding cylinder and the right sliding cylinder fixed on the machine body, the driving wheel rotates for a circle, the swinging direction of the reversing wheel is changed twice, and the whole device completes reciprocating motion along with the continuous rotation of the driving wheel.

2. A reciprocating pump transmission as defined in claim 1, wherein: the driving wheel has a shaft hole, the shaft hole is opened with a key slot, the shaft hole has a certain eccentric distance with the excircle center of the driving wheel, the shaft passes through the shaft hole of the driving wheel and transmits torque by a flat key, and the shaft and the bearing for fixing the supporting shaft and other related parts are arranged on the machine body.

3. A reciprocating pump transmission as defined in claim 1, wherein: the reversing wheel is provided with a hole, the hole has a certain eccentric distance with the center of the excircle of the reversing wheel, a reversing wheel bearing is arranged in the hole, and a roller pin of the reversing wheel bearing is in contact with the excircle of the driving wheel and can move relatively.

4. A reciprocating pump transmission as defined in claim 1, wherein: a hole is processed in the center of the reciprocating disc, a reciprocating disc bearing is installed in the hole, and a roller pin of the reciprocating disc bearing is in contact with the outer circle of the reversing wheel and can move relatively.

5. A reciprocating pump transmission as defined in claim 1, wherein: the left guide disc and the right guide disc are fixedly arranged at two ends of the reciprocating disc, the two ends of the reciprocating disc are respectively provided with one guide disc, the outer circles of the left guide disc and the right guide disc are processed into annular grooves, and the guide sleeves are arranged in the annular grooves.

6. A reciprocating pump transmission as defined in claim 1, wherein: the machine body left sliding cylinder and the machine body right sliding cylinder are respectively arranged on the left side and the right side of the machine body and are coaxial, and the excircle of the guide sleeve of the left guide disc and the excircle of the guide sleeve of the right guide disc are respectively contacted with the surfaces of inner holes of the machine body left sliding cylinder and the machine body right sliding cylinder and can slide left and right.

7. A reciprocating pump transmission as defined in claim 1, wherein: the reciprocating disc bearing pressing plates are installed at two ends of the reciprocating disc bearing, fix the reciprocating disc bearing and limit and restrain the reversing wheel.

8. A reciprocating pump transmission as defined in claim 1, wherein: the bearing plates of the reversing wheel are arranged at two ends of the reversing wheel bearing, the reversing wheel bearing is fixed, and meanwhile, the driving wheel is limited and restrained.

Technical Field

The invention relates to a mechanical device, in particular to a transmission device for reciprocating motion of a reciprocating pump

Background

The reciprocating pump converts the rotary motion of a prime mover into the reciprocating motion of a piston through a transmission end, and a mechanical device for realizing the conversion is usually completed by a crank-connecting rod mechanism or a protruding shaft mechanism, the transmission device mainly comprises a machine body, a crankshaft, a connecting rod, a crosshead body, a crosshead pin, a small-end bushing, a large-end bearing bush and other parts, the structure is complex, the number of moving parts is large, the number of kinematic pairs is large, each kinematic pair at the transmission end needs to be lubricated and reliable, auxiliary equipment such as lubrication and cooling needs to be added when necessary, and the production and maintenance costs are high; in addition, for the traditional crank or protruding shaft mechanism, the requirement on the processing of the crank shaft is high, the production difficulty is high, and in practical production application, the situation of shaft breakage caused by stress concentration of the crank shaft often occurs.

Disclosure of Invention

The invention aims to provide a transmission device of a reciprocating pump, which solves the technical problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a reciprocating pump transmission, main spare part includes organism, axle, drive wheel, reverse wheel, reciprocating disc, left positioning disk, right positioning disk, and relevant spare part includes reverse wheel bearing, reciprocating disc bearing, reverse wheel bearing plate, reciprocating disc bearing plate, uide bushing, organism left sliding cylinder, organism right sliding cylinder, parallel key, bearing, its characterized in that: the two ends of the reciprocating disc are respectively provided with the left guide disc, the right guide disc and the guide sleeve, the degree of freedom is limited by the left sliding cylinder of the machine body and the right sliding cylinder of the machine body, the shaft drives the driving wheel to rotate, the driving wheel pushes the reversing wheel to swing up and down around the excircle of the driving wheel, the reversing wheel pushes the reciprocating disc to move along the axial lead of the left sliding cylinder and the right sliding cylinder of the machine body, the driving wheel rotates for a circle, the swinging direction of the reversing wheel is changed twice, and the whole device realizes reciprocating motion along with the rotation of the shaft and the driving wheel.

Preferably, the driving wheel has a shaft hole with a key slot, the shaft hole has a certain eccentricity with the center of the outer circle of the driving wheel, the shaft passes through the shaft hole of the driving wheel and is connected by a flat key, and the shaft and the bearing for fixing the supporting shaft are mounted on the machine body.

Preferably, the reversing wheel is provided with a hole, the hole has a certain eccentric distance with the center of the excircle of the reversing wheel, a reversing wheel bearing is arranged in the hole, and a roller pin of the reversing wheel bearing is in contact with the excircle of the driving wheel and can move relatively.

Preferably, a hole is processed in the center of the reciprocating disc, a reciprocating disc bearing is installed in the hole, and a roller pin of the reciprocating disc bearing is in contact with the excircle of the reversing wheel and can move relatively.

Preferably, the left guide disc and the right guide disc are respectively installed and fixed at two ends of the reciprocating disc, an annular groove is machined in the outer circle of the guide disc, and the guide sleeve is installed in the annular groove.

Preferably, the machine body left sliding cylinder and the machine body right sliding cylinder are respectively arranged on the left side and the right side of the machine body and are coaxial, and the excircle of the guide sleeve is in contact with the surfaces of the inner holes of the machine body left sliding cylinder and the machine body right sliding cylinder and can slide left and right.

Preferably, the reciprocating disc bearing pressing plates are installed at two ends of the reciprocating disc bearing to fix the reciprocating disc bearing and limit the reversing wheel in a restraining manner.

Preferably, the bearing plates of the reversing wheel are arranged at two ends of the reversing wheel bearing, the reversing wheel bearing is fixed, and the driving wheel is restrained and limited.

Preferably, a rib plate is reserved on the end face of the reversing wheel, and lubricating oil can be driven to splash when the reversing wheel swings up and down so as to fully lubricate the bearing of the reversing wheel and the bearing of the reciprocating disc.

Preferably, the reversing wheel bearing and the reciprocating disc bearing are needle roller bearings without inner rings, and can also be replaced by sliding bearing bushes or rollers.

The invention has the beneficial effects that:

the transmission device of the reciprocating pump replaces the traditional crankshaft connecting rod structure with three main parts, namely the driving wheel, the reversing wheel and the reciprocating disc, has the same working principle as a crankshaft connecting rod mechanism, and has the advantages of short axial length, simple structure, simple processing and low production cost because the main parts are all in a disc type structure.

The transmission device of the reciprocating pump adopts the straight shaft, so that the stress concentration problem of the crankshaft is avoided; in addition, the reciprocating part is short in axial length, and key grooves with corresponding number are machined on the shaft at equal intervals and equal angles, so that the multi-pump reciprocating part can be applied to the multi-pump.

The transmission device of the reciprocating pump can drive enough lubricating oil to fully lubricate a kinematic pair by the up-and-down swing of the reversing wheel without additionally adding auxiliary equipment such as lubricating, cooling and the like.

The invention relates to a transmission device of a reciprocating pump, wherein both ends of a reciprocating disc can output power, the transmission device is particularly suitable for a double-acting pump, different from a crankshaft connecting rod structure, and a set of connecting rod mechanism is required to be added when one output is added.

Drawings

FIG. 1 is an elevational sectional view of the present invention

FIG. 2 is a top sectional view of the present invention

FIG. 3 is a left side sectional view of the present invention

FIG. 4 is an elevational cross-sectional view of a double action pump of the present invention

Part names corresponding to respective numbers in the drawing: 1. a machine body, 2. a shaft; 3. a drive wheel; 4. a reversing wheel; 5. a reciprocating disc; 6. a left guide plate; 7. a right guide plate; 8. a reverse wheel bearing; 9. a reciprocating disc bearing; 10. a bearing plate of the reversing wheel shaft; 11. a reciprocating disc bearing pressure plate; 12. a guide sleeve; 13. a left sliding cylinder of the machine body; 14. a right sliding cylinder of the machine body; 15. a flat bond; 16. bearing assembly

Detailed Description

The invention is further described with reference to the following drawings and detailed description.

The invention relates to a reciprocating pump transmission device, which is shown in figures 1-4, and comprises main parts including a machine body 1, a shaft 2, a driving wheel 3, a reversing wheel 4, a reciprocating disc 5, a left guide disc 6 and a right guide disc 7, wherein the related parts include a reversing wheel bearing 8, a reciprocating disc bearing 9, a reversing wheel bearing pressing plate 10, a reciprocating disc bearing pressing plate 11, a guide sleeve 12, a machine body left sliding cylinder 13, a machine body right sliding cylinder 14, a flat key 15 and a bearing 16.

The driving wheel 3 is provided with a shaft hole and is processed with a key slot, the shaft hole has a certain eccentric distance with the excircle center of the driving wheel 3, the shaft 2 passes through the shaft hole of the driving wheel, the driving wheel 3 is connected on the shaft 2 by a flat key 15, and the shaft 2 is fixedly arranged on the machine body 1 by a bearing 16 and other related parts to form a driving part.

A hole is processed on the reversing wheel 4, a certain eccentric distance is reserved between the hole and the excircle center of the reversing wheel 4, a reversing wheel bearing 8 is installed in the hole, a roller pin of the reversing wheel bearing 8 is in contact with the excircle of the driving wheel 3 and can move relatively, the two ends of the reversing wheel bearing 8 are fixed through a reversing wheel bearing plate 10, the inner side ring surface of the reversing wheel bearing plate 10 simultaneously axially limits the driving wheel 3, a certain gap is reserved between the two parts, the two parts are only limited but not in contact, and the reversing wheel 4, the reversing wheel bearing 8, the reversing wheel bearing plate 10 and a fastening piece of the reversing wheel bearing plate are combined to form a first driven part.

A round hole is processed in the center of the reciprocating disc 5, a reciprocating disc bearing 9 is installed in the round hole, a roller pin of the reciprocating disc bearing 9 is in contact with the outer circle of the reversing wheel 4 and can move relatively, the reciprocating disc bearing 9 is fixed at two ends through a reciprocating disc bearing pressing plate 11, the inner side ring surface of the reciprocating disc bearing pressing plate 11 simultaneously carries out axial limiting on the reversing wheel 4, a certain gap is formed between the two, and the two are only limited but not in contact.

The excircle of left side guiding disk 6 and right guiding disk 7 processes the ring channel, and two install respectively in the ring channel about uide bushing 12, and the uide bushing adopts wear-resisting material, and flexible opening is convenient for install, and left side guiding disk 6 and right guiding disk 7 are fixed mounting respectively at the both ends about reciprocating disk 5 with the screw.

In the above, the reciprocating disc 5, the left guide disc 6, the right guide disc 7, the reciprocating disc bearing 9, the reciprocating disc bearing pressure plate 11, the guide sleeve 12 and the fastening piece thereof are combined to form a second driven part.

The machine body 1 is provided with a left hole and a right hole which are coaxial, the left sliding cylinder 13 and the right sliding cylinder 14 of the machine body are respectively arranged in the left hole and the right hole of the machine body and are fixedly locked, and the excircles of the left guide sleeve 12 and the right guide sleeve 12 of the second driven part are in contact with the left sliding cylinder and the right sliding cylinder of the machine body and can slide left and right.

The machine body 1, the machine body left sliding cylinder 13, the machine body right sliding cylinder 14 and related parts form a frame, and the freedom degree of the second driven part is restrained to enable the second driven part to do reciprocating linear motion along the common axial lead of the machine body left sliding cylinder 13 and the machine body right sliding cylinder 14.

The second driven part is used as a driven part, and simultaneously, the first driven part is restrained by the degree of freedom, so that the first driven part can only do rotary motion along the axis of the central circular hole of the reciprocating disc 5, the rotary motion of the first driven part is simultaneously restrained by the eccentric distance of the driving wheel 3 and the eccentric distance of the reversing wheel 4, the first driven part can only do up-and-down swing, the driving wheel 3 rotates for a circle, the swing direction of the reversing wheel 4 is changed twice, and the whole device can continuously rotate along with the driving part, so that the reciprocating motion is realized.

According to the reciprocating pump transmission device disclosed by the invention, as shown in figure 1, the reversing wheel rib plate 4.1 is reserved on the end surface of the reversing wheel 4, so that lubricating oil in the cavity of the machine body 1 can be driven to splash when the reversing wheel 4 swings up and down, the reversing wheel bearing 8 and the reciprocating disc bearing 9 can be fully lubricated, additional auxiliary equipment such as lubricating and cooling equipment is not required to be added, and the production and maintenance cost is reduced.

According to the reciprocating pump transmission device disclosed by the invention, as shown in fig. 2-3, a corresponding number of key grooves are machined on the shaft 2 at equal distances and equal angles, so that the reciprocating pump transmission device can be suitable for a multi-connected pump, and any cylinder number can be configured as long as the strength of the shaft 2 is enough, without considering the difficulty in machining the shaft.

The invention relates to a reciprocating pump transmission device, as shown in figure 4, two ends of a reciprocating disc 9 can output power, and the transmission device is particularly suitable for double-acting pumps.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and is not intended to limit the practice of the invention to these embodiments. Any equivalent changes and modifications made according to the technical spirit of the present invention should be considered to be within the protective scope of the present invention, unless departing from the technical solution content of the present invention.