CN212774744U - Mixed delivery pump with good stability - Google Patents

Abstract

The utility model discloses a mixing transportation pump with good stability, relating to the technical field of pumps; the automatic feeding device comprises a shell, a driving shaft, a driven shaft matched with the driving shaft, a driving gear fixedly connected to one end of the driving shaft, a driven gear fixedly connected to one end of the driven shaft and meshed with the driving gear, a feeding port located on the shell, a discharging port located on the shell, a compensation mechanism used for compensating output pressure when the output pressure is reduced, and a rotating mechanism used for rotating the driving shaft. The compensation mechanism is arranged to compensate for pressure drop, and therefore flow reduction is prevented.

Description

Mixed delivery pump with good stability

Technical Field

The utility model belongs to the technical field of the pump, in particular to defeated pump thoughtlessly that stability is good.

Background

The mixing and transferring pump is widely used in the fields of crude oil transportation and the like.

The output pressure of the existing mixing and conveying pump is unstable, and pressure drop is easily formed, so that the conveying efficiency is reduced.

Chinese patent publication No.: CN 105370566B; the utility model discloses a mixed transportation pump, which comprises a cylinder body, wherein one end of the cylinder body is provided with a left end cover, the other side of the left end cover is communicated with an outlet pipeline, and the other end of the cylinder body is provided with an oil tank and a bearing seat; a rotor and a crankshaft are arranged in the inner cavity of the cylinder body, the crankshaft is arranged along the horizontal direction, the rotor does plane swing along with the crankshaft, and the outer wall surface of the rotor is kept tangent to the inner wall surface of the cylinder body all the time; and a rolling bearing is arranged between the rotor and the crankshaft, and the rotor is tightly matched with the crankshaft through the rolling bearing. The multiphase pump provided by the invention realizes good lubrication of all parts, prolongs the service life of the whole machine, and provides guarantee for the application of a multiphase technology in oilfield exploitation and oil-gas multiphase. The prior art has the defect of low conveying efficiency.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art transport efficiency is low, providing a defeated pump that mixes that stability is good, transport efficiency is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a defeated pump that mixes that stability is good, includes casing, driving shaft, and driving shaft complex driven shaft, rigid coupling in the driving gear of driving shaft one end, rigid coupling in driven shaft one end and with driving gear engaged with driven gear, be located the pan feeding mouth on the casing, be located the discharge gate on the casing, still include the compensating mechanism who is used for compensating output pressure when output pressure reduces, be used for rotating the slewing mechanism of driving shaft. The compensation mechanism is arranged to compensate for pressure drop, and therefore flow reduction is prevented.

Preferably, the feeding port is connected with a feeding pipe, and the discharging port is connected with a discharging pipe; the rotating mechanism comprises a rotating shaft and a motor for rotating the rotating shaft; the casing is fixedly connected with a support at the corresponding position of the driving shaft, a friction wheel is rotatably connected onto the support, an extrusion friction block is arranged at one end, close to the driving shaft, of the rotating shaft, a damping wheel is arranged on the rotating shaft sleeve, the damping wheel is rotatably connected with the rotating shaft, an annular groove is formed in the rotating shaft, a crown gear is rotatably connected into the annular groove, the outer edge of the crown gear is fixedly connected with the inner edge of the damping wheel, a transmission gear is meshed with one side of the crown gear and rotatably connected into the rotating shaft, a transmission shaft coaxial with the transmission gear is fixedly connected onto the transmission gear, a transmission damping gear is sleeved onto the transmission shaft and rotatably connected with the transmission damping gear, a rack meshed with the transmission damping gear is inserted into one end, close to the driving shaft, of the rotating shaft, one end of the rack is fixedly connected with the extrusion friction, a pull wire is wound on the friction wheel; the compensation mechanism comprises a sensor for detecting the pressure in the discharge pipe, a storage barrel with the lower end communicated with the feeding pipe, a piston assembly connected in the storage barrel in a sliding manner, an upper spring with the lower end connected to the upper side of the piston assembly and used for applying downward force to the piston assembly, and a lower spring with the upper end connected to the lower side of the piston assembly and used for applying downward force to the piston assembly; the piston assembly comprises a sliding block connected in the storage barrel in a sliding manner, a piston connected in the storage barrel in a sliding manner, a connecting mechanism used for connecting the sliding block and the piston, a failure mechanism connected with the sensor and used for failing the connecting mechanism, and a locking mechanism positioned on the sliding block and used for locking the sliding block in the storage barrel; the piston is positioned below the sliding block, the lower end of the upper spring is connected to the sliding block, the upper end of the lower spring is connected to the piston, and the lower end of the pull wire is connected to the sliding block.

Preferably, the deadlocking mechanism comprises an electric cylinder located within the slide, the electric cylinder comprising an output shaft that is extended to press against the inner wall of the accumulator.

Preferably, the connecting mechanism comprises a chute positioned on the lower side of the sliding block, a connecting rod with the upper end connected in the chute in a sliding manner, a connecting rod spring sleeved on the connecting rod and used for applying upward force to the connecting rod, an anti-falling mechanism positioned between the chute and the connecting rod and used for preventing the connecting rod from falling off from the chute, an arrow-shaped chuck fixedly connected to the lower end of the connecting rod, clamping blocks positioned on two opposite sides of the chuck and used for being matched with the clamping blocks, and a tension spring positioned between the clamping blocks; the failure mechanism is an electromagnet used for adsorbing the fixture block so as to enable the fixture block to move towards one side far away from the chuck; the electromagnet is connected with the sensor; the fixture block comprises a vertical rod with the lower end connected to the upper side of the piston in a sliding manner and a cross rod with one end fixedly connected to the upper end of the vertical rod; the clamping head comprises a stop surface matched with the cross rod and a V-shaped guide surface used for separating the clamping block; the tank bottom of spout is equipped with the proximity switch that is used for responding to the connecting rod upper end, proximity switch and locking mechanism are connected.

Preferably, the anti-disengaging mechanism comprises a limiting sliding groove and a limiting sliding block, the limiting sliding groove is located on the inner wall of the sliding groove, the limiting sliding block is connected in the limiting sliding groove in a sliding mode, and the limiting sliding block is fixedly connected to the connecting rod.

Preferably, the number of the transmission damping gears is at least two.

Preferably, the housing is provided with a dust cover for preventing dust from entering the drive gear and the driven gear.

The utility model has the advantages that: the utility model provides a defeated pump of mixing that stability is good, conveying efficiency is high.

Drawings

FIG. 1 is a schematic view of a housing, a driving shaft and a driven shaft;

FIG. 2 is a schematic view of the present invention;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an enlarged view of FIG. 2 at B;

FIG. 5 is a schematic view of the upward movement of the piston assembly;

FIG. 6 is an enlarged view at C of FIG. 5;

FIG. 7 is a schematic view of the piston and slide being disengaged;

fig. 8 is an enlarged view of fig. 7 at D.

In the figure: the device comprises a shell 1, a driving shaft 2, a driven shaft 3, a driving gear 4, a driven gear 5, a material inlet 6, a material outlet 7, a material inlet pipe 8, a material outlet pipe 9, a material storage cylinder 10, a sliding block 11, an upper spring 12, a lower spring 13, a piston assembly 14, a rotating shaft 15, an extrusion friction block 16, a damping wheel 17, a support 18, a friction wheel 19, a pull wire 20, an electric cylinder 24, an output shaft 25, a sliding groove 26, a connecting rod 27, a clamping head 28, a clamping block 29, a tension spring 30, an electromagnet 31, a sensor 32, a vertical rod 33, a cross rod 34, a stopping surface 35, a connecting rod spring 36, a guide surface 37, a proximity switch 38, a limiting sliding groove 39, a limiting sliding block 40, a dust cover 42, an annular groove 43, a crown gear 44, a transmission.

Detailed Description

The invention will be further explained in detail with reference to the drawings and the following detailed description:

example (b):

referring to fig. 1 to 8: the utility model provides a defeated pump of mixture that stability is good, includes casing 1, driving shaft 2 and driving shaft 2 complex driven shaft 3, the driving gear 4 of rigid coupling in driving shaft 2 one end, the driven gear 5 of rigid coupling in 3 one ends of driven shaft and with driving gear 4 meshing, pan feeding mouth 6 on being located casing 1, the discharge gate 7 that is located casing 1, still including being used for compensating output pressure's compensation mechanism when output pressure reduces, the slewing mechanism who is used for rotating driving shaft 2. The feeding port 6 is connected with a feeding pipe 8, and the discharging port 7 is connected with a discharging pipe 9. The housing 1 is provided with a dust cover 42 for preventing dust from entering the drive gear 4 and the driven gear 5.

The rotating mechanism comprises a rotating shaft 15 and a motor for rotating the rotating shaft 15.

Casing 1 has support 18 at the position rigid coupling that driving shaft 2 corresponds, it is connected with friction pulley 19 to rotate on support 18, the one end that pivot 15 is close to driving shaft 2 is equipped with extrusion clutch blocks 16, pivot 15 cover is equipped with damping wheel 17, damping wheel 17 and pivot 15 rotate to be connected, be equipped with ring channel 43 on the pivot 15, ring channel 43 internal rotation is connected with crown gear 44, crown gear 44 outer fringe and damping wheel 17's inner edge rigid coupling, crown gear 44 one side meshing has drive gear 45, drive gear 45 rotates to be connected in pivot 15, the rigid coupling has rather than coaxial transmission shaft 46 on drive gear 45, the cover is equipped with transmission damping gear 47 on transmission shaft 46, transmission shaft 46 and transmission damping gear 47 rotate to be connected, the one end that pivot 15 is close to driving shaft 2 is inserted and is equipped with the rack 48 with transmission damping gear 47 meshing, one end of the rack 48 is fixedly connected with the extrusion friction block 16, the outer edge of the damping wheel 17 is abutted with the outer edge of the friction wheel 19, and the pull wire 20 is wound on the friction wheel 19. In order to increase the stability of the rack 48 in the axial direction, a guide rod may be provided on the pressing friction block 16, and the guide rod is inserted into the end of the rotation shaft 15 to perform a guide function. The number of the transmission damping gears 47 is at least two.

The compensation mechanism comprises a sensor 32 for detecting the internal pressure of the discharging pipe 9, a storage barrel 10 with the lower end communicated with the feeding pipe 8, a piston assembly 14 connected in the storage barrel 10 in a sliding manner, an upper spring 12 with the lower end connected to the upper side of the piston assembly 14 and used for applying downward force to the piston assembly 14, and a lower spring 13 with the upper end connected to the lower side of the piston assembly 14 and used for applying downward force to the piston assembly 14.

The piston assembly 14 comprises a slide block 11 connected in the storage barrel 10 in a sliding manner, a piston 49 connected in the storage barrel 10 in a sliding manner, a connecting mechanism for connecting the slide block 11 and the piston 49, a failure mechanism connected with the sensor 32 and used for failing the connecting mechanism, and a locking mechanism positioned on the slide block 11 and used for locking the slide block 11 in the storage barrel 10; the piston 49 is positioned below the slide block 11, the lower end of the upper spring 12 is connected to the slide block 11, the upper end of the lower spring 13 is connected to the piston 49, and the lower end of the pull wire 20 is connected to the slide block 11.

The deadlocking mechanism includes an electric cylinder 24 located within the ram 11, the electric cylinder 24 including an output shaft 25 that extends to press against the inner wall of the accumulator 10.

The connecting mechanism comprises a sliding groove 26 positioned on the lower side of the sliding block 11, a connecting rod 27 with the upper end connected in the sliding groove 26 in a sliding manner, a connecting rod spring 36 sleeved on the connecting rod 27 and used for applying upward force to the connecting rod 27, an anti-falling mechanism positioned between the sliding groove 26 and the connecting rod 27 and used for preventing the connecting rod 27 from falling off from the sliding groove 26, arrow-shaped clamping heads 28 fixedly connected to the lower end of the connecting rod 27, clamping blocks 29 positioned on the two opposite sides of the clamping heads 28 and used for being matched with the clamping heads 28, and a tension spring 30 positioned.

The disabling mechanism is an electromagnet 31 for attracting the latch 29 so as to move the latch 29 toward the side away from the chucking head 28; the electromagnet 31 is connected to the sensor 32.

The fixture block 29 comprises a vertical rod 33 with the lower end connected to the upper side of the piston 49 in a sliding manner, and a cross rod 34 with one end fixed to the upper end of the vertical rod 33.

The latch 28 includes a stop surface 35 for engaging the crossbar 34, and a V-shaped guide surface 37 for separating the latch 29.

The groove bottom of the sliding groove 26 is provided with a proximity switch 38 used for sensing the upper end of the connecting rod 27, and the proximity switch 38 is connected with the locking mechanism.

The anti-falling mechanism comprises a limiting sliding groove 39 and a limiting sliding block 40, wherein the limiting sliding groove 39 is located on the inner wall of the sliding groove 26, the limiting sliding block 40 is connected in the limiting sliding groove 39 in a sliding mode, and the limiting sliding block 40 is fixedly connected to the connecting rod 27.

Principle of embodiment:

before the motor runs, the extrusion friction block 16 and the driving shaft 2 are separated, then the motor runs at a constant speed to drive the rotating shaft 15 to rotate, the rotating shaft 15 and the damping wheel 17 rotate relatively, and the faster the relative rotation speed is, the larger the damping between the rotating shaft 15 and the damping wheel 17 is; under the action of the damper, the damper wheel 17 rotates, the damper wheel drives the friction wheel 19 to rotate, the friction wheel 19 starts to wind the upper end of the pull wire 20, the sliding block 11 is slowly pulled upwards, the connecting rod spring 36 extends, and the proximity switch 38 and the connecting rod 27 are disconnected, see fig. 4. Then, under the action of the connecting mechanism, the piston assembly 14 is slowly moved upwards to draw a portion of the material into the storage cylinder 10, the upper spring 12 is shortened, and the lower spring 13 is extended, see fig. 5.

It is important to mention that in this embodiment, when the motor is started, the damping wheel first drives the friction wheel 19 to rotate, the relative rotation speed between the damping wheel and the rotating shaft 15 is faster and faster, and at the same time, the pulling force of the pulling wire 20 is larger and larger, when the damping between the damping wheel and the rotating shaft 15 and the pulling force of the pulling wire 20 are balanced, the piston assembly 14 stops moving upwards, the damping wheel no longer rotates the friction wheel 19, and the relative rotation speed between the damping wheel and the rotating shaft 15 is kept unchanged.

The damping wheel is fixedly connected with the crown gear 44, so that relative rotation exists between the crown gear 44 and the rotating shaft 15, the rotating shaft 15 rotates and simultaneously drives the transmission gear 45 to rotate on the crown gear 44, the transmission gear 45 drives the transmission shaft 46 to rotate, the transmission shaft 46 and the transmission damping gear 47 rotate relatively, damping exists between the transmission damping gear 47 and the transmission shaft 46, under the action of the damping, the rack 48 moves towards the driving shaft 2, the final extrusion friction block 16 is tightly pressed on the section of the driving shaft 2, and under the action of friction between the extrusion friction block 16 and the driving shaft 2, the driving shaft 2 finally starts to rotate, and the reference of fig. 6 shows that the driving shaft 2 is in a rotating state.

It is important to mention that when the crown gear 44 stops rotating (i.e. when the wire 20 is not pulled upwards any more), the relative rotation speed between the transmission shaft 46 and the transmission damping gear 47 is the maximum, i.e. the damping between the transmission shaft 46 and the transmission damping gear 47 is the maximum, i.e. the friction force between the extrusion friction block 16 and the driving shaft 2 is gradually increased when the motor is started, and the impact force of the driving shaft 2 is greatly reduced. In addition, in order to increase the torque of the driving gear 4, it is possible to increase the contact area between the pressing friction block 16 and the driving gear 4, and this is not expanded.

The driving shaft 2 drives the driven shaft 3 to rotate, and then materials enter the shell 1 from the feeding port 6 and then come out from the discharging port 7.

After the material is output stably, the sensor 32 detects the pressure in the material pipe 9 at any time, when the pressure is reduced obviously, the sensor 32 sends a signal to the electromagnet 31, the electromagnet 31 adsorbs the fixture block 29, the tension spring 30 extends, the fixture block 29 is separated from the chuck 28, referring to fig. 7 and 8, the connecting rod 27 moves upwards under the action of the connecting rod spring 36, the upper end of the connecting rod 27 abuts against the proximity switch 38, the proximity switch 38 sends a signal to the electric cylinder 24, the output shaft 25 of the electric cylinder 24 is pressed on the inner wall of the storage barrel 10, so that the sliding block 11 is fixed in the storage barrel 10, the sliding block 11 is prevented from being pulled upwards by the pull wire 20, and the pulling force of the pull wire 20 is. In addition, under the action of the lower spring 13, the piston 49 moves downwards to slowly press the materials in the storage cylinder 10 into the shell 1, so that the pressure of the feeding port 6 is increased, the pressure of the discharging port 7 is increased, the pressure drop is prevented, and the conveying efficiency is improved.

When the motor stops running, the electric cylinder 24 is reset, the electromagnet 31 is closed, the tension spring 30 contracts, the fixture block 29 is folded, the sliding block 11 moves downwards under the action of the upper spring 12 and the lower spring 13, the chuck 28 and the fixture block 29 are clamped again under the action of the guide surface 37, the rotating shaft 15 stops rotating, damping between the transmission shaft 46 and the transmission damping gear 47 disappears, and the extrusion friction block 16 is not pressed against the driving shaft 2.

Claims (7)

1. The utility model provides a defeated pump that mixes that stability is good, includes casing, driving shaft, and driving shaft complex driven shaft, rigid coupling in the driving gear of driving shaft one end, rigid coupling in driven shaft one end and with driving gear engaged with driven gear, be located the pan feeding mouth on the casing, be located the discharge gate on the casing, its characterized in that still includes the slewing mechanism who is used for compensating output pressure when output pressure reduces, is used for rotating the driving shaft.

2. The multiphase pump with good stability as recited in claim 1, wherein the feeding port is connected with a feeding pipe, and the discharging port is connected with a discharging pipe;

the rotating mechanism comprises a rotating shaft and a motor for rotating the rotating shaft;

the casing is fixedly connected with a support at the corresponding position of the driving shaft, a friction wheel is rotatably connected onto the support, an extrusion friction block is arranged at one end, close to the driving shaft, of the rotating shaft, a damping wheel is arranged on the rotating shaft sleeve, the damping wheel is rotatably connected with the rotating shaft, an annular groove is formed in the rotating shaft, a crown gear is rotatably connected into the annular groove, the outer edge of the crown gear is fixedly connected with the inner edge of the damping wheel, a transmission gear is meshed with one side of the crown gear and rotatably connected into the rotating shaft, a transmission shaft coaxial with the transmission gear is fixedly connected onto the transmission gear, a transmission damping gear is sleeved onto the transmission shaft and rotatably connected with the transmission damping gear, a rack meshed with the transmission damping gear is inserted into one end, close to the driving shaft, of the rotating shaft, one end of the rack is fixedly connected with the extrusion friction, a pull wire is wound on the friction wheel;

the compensation mechanism comprises a sensor for detecting the pressure in the discharge pipe, a storage barrel with the lower end communicated with the feeding pipe, a piston assembly connected in the storage barrel in a sliding manner, an upper spring with the lower end connected to the upper side of the piston assembly and used for applying downward force to the piston assembly, and a lower spring with the upper end connected to the lower side of the piston assembly and used for applying downward force to the piston assembly;

the piston assembly comprises a sliding block connected in the storage barrel in a sliding manner, a piston connected in the storage barrel in a sliding manner, a connecting mechanism used for connecting the sliding block and the piston, a failure mechanism connected with the sensor and used for failing the connecting mechanism, and a locking mechanism positioned on the sliding block and used for locking the sliding block in the storage barrel;

the piston is positioned below the sliding block, the lower end of the upper spring is connected to the sliding block, the upper end of the lower spring is connected to the piston, and the lower end of the pull wire is connected to the sliding block.

3. The multiphase pump with good stability of claim 2, wherein the locking mechanism comprises an electric cylinder positioned in a sliding block, and the electric cylinder comprises an output shaft which is extruded on the inner wall of the storage barrel after being stretched.

4. The mixing and conveying pump with good stability as claimed in claim 2, wherein the connecting mechanism comprises a sliding groove located on the lower side of the sliding block, a connecting rod with the upper end connected in the sliding groove in a sliding manner, a connecting rod spring sleeved on the connecting rod and used for applying an upward force to the connecting rod, an anti-falling mechanism located between the sliding groove and the connecting rod and used for preventing the connecting rod from falling off from the sliding groove, a clamping head in an arrow shape fixedly connected to the lower end of the connecting rod, clamping blocks located on the two opposite sides of the clamping head and used for being matched with the clamping head, and a tension spring located between; the failure mechanism is an electromagnet used for adsorbing the fixture block so as to enable the fixture block to move towards one side far away from the chuck;

the electromagnet is connected with the sensor;

the fixture block comprises a vertical rod with the lower end connected to the upper side of the piston in a sliding manner and a cross rod with one end fixedly connected to the upper end of the vertical rod;

the clamping head comprises a stop surface matched with the cross rod and a V-shaped guide surface used for separating the clamping block;

the tank bottom of spout is equipped with the proximity switch that is used for responding to the connecting rod upper end, proximity switch and locking mechanism are connected.

5. The multiphase pump with good stability as recited in claim 4, wherein the anti-dropping mechanism comprises a limiting sliding groove located on an inner wall of the sliding groove, and a limiting sliding block slidably connected in the limiting sliding groove, and the limiting sliding block is fixedly connected to the connecting rod.

6. The multiphase pump with good stability as recited in claim 2, wherein the number of the transmission damping gears is at least two.

7. The multiphase pump with good stability as recited in claim 1, wherein the housing is provided with a dust cover for preventing dust from entering the driving gear and the driven gear.

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