CN216577441U - Self-centering device of electronic vacuum pump for vehicle - Google Patents

Abstract

The utility model provides a self-centering device of an electronic vacuum pump for a vehicle, which comprises a bottom plate and a vacuum pump, wherein a vertical plate and a vacuum pump positioning part are arranged on the bottom plate, the vertical plate and the vacuum pump positioning part are arranged on two sides of the bottom plate, the vacuum pump is arranged on the vacuum pump positioning part, a movable pressing plate is arranged between the vertical plates on the two sides, a power part is arranged on the bottom plate, one end of the power part is connected with the movable pressing plate, guide connecting assemblies are arranged between two ends of the movable pressing plate and the corresponding vertical plate, the movable pressing plate is movably connected with the vertical plate through the guide connecting assemblies, and the power part drives the movable pressing plate to move up and down between the vertical plates.

Description

Self-centering device of electronic vacuum pump for vehicle

Technical Field

The utility model relates to the technical field of automobile vacuum pumps, in particular to a self-centering device of an electronic vacuum pump for an automobile.

Background

At present, in the stator and rotor assembling process of a blade vacuum pump assembly line, especially the requirement of the gap between the rotor and the stator is high, and the size difference can cause early failure or performance reduction of products in the using process. The existing execution scheme needs to manufacture a special positioning mechanism, a special clamping mechanism and a special moving mechanism, and needs to be provided with a visual detector or a displacement sensor, so that the equipment investment is large. The whole process is complicated, the production rhythm is influenced, the device is a bottleneck of a production line, and a convenient and low-cost device and method are urgently needed to support the assembly of products.

Disclosure of Invention

In view of this, the present invention provides a self-centering device for an electronic vacuum pump for a vehicle.

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

the utility model provides a self-centering device of automobile-used electron vacuum pump and operation method thereof, includes bottom plate and vacuum pump, set up riser and vacuum pump setting element on the bottom plate, riser and vacuum pump setting element all set up the both sides at the bottom plate, the vacuum pump sets up on the vacuum pump setting element, set up movable clamp plate between the riser of both sides, set up the power spare on the bottom plate, the one end and the movable clamp plate of power spare are connected, all set up direction coupling assembling between the both ends of movable clamp plate and the riser that corresponds, movable clamp plate passes through direction coupling assembling and riser swing joint, just the power spare drives movable clamp plate elevating movement between the riser.

The better, the riser of both sides all has solid portion and hollow portion, hollow portion sets up the top at solid portion, solid portion sets up the one side that is close to the bottom plate at the riser, form movable chamber in the hollow portion, direction coupling assembling sets up at the activity intracavity, set up perpendicular groove on the both sides cell wall in activity chamber, the both ends of activity clamp plate stretch into corresponding activity chamber and are connected with direction coupling assembling through corresponding perpendicular groove.

Preferably, the guide connection assembly comprises a guide shaft and a linear bearing, a connecting hole is formed in one end, extending into the movable cavity, of the movable pressing plate, two ends of the guide shaft penetrate through the connecting hole to be connected with the cavity wall of the movable cavity, and the linear bearing is sleeved on the part, located in the connecting hole, of the guide shaft.

Preferably, the linear bearing comprises a bearing sleeve and balls, the bearing sleeve is arranged in the connecting hole, a ball groove is formed between the bearing sleeve and the guide shaft, the balls are arranged in the ball groove, and the movable pressing plate reciprocates along the guide shaft through the balls in the bearing sleeve.

The preferred, erect the groove and erect the groove including inboard perpendicular groove and the outside, the activity clamp plate erects the groove through the inboard and stretches into movable chamber and be connected with direction coupling assembling, the outside erects the inslot and sets up holding screw, holding screw's one end is erected the groove through the outside and is stretched into movable chamber and carry out fastening connection to direction coupling assembling.

Preferably, the power part is provided with a push rod, one end, far away from the power part, of the push rod supports the bottom of the movable pressing plate, the movable pressing plate corresponds to the push rod and is provided with a fixing groove, a mounting hole is formed in the bottom wall of the fixing groove, a mounting bolt is arranged in the fixing groove, one end of the mounting bolt stretches out of the fixing groove through the mounting hole, a screw hole corresponding to the mounting bolt is formed in the push rod, and one end, stretching out of the fixing groove, of the mounting bolt stretches into the screw hole to be in threaded connection with the push rod.

Preferably, a rubber pad is further arranged at the center of the bottom of the movable pressing plate, the rubber pad is provided with a protruding end, a groove is formed in the movable pressing plate corresponding to the protruding end of the rubber pad, and the rubber pad is connected with the movable pressing plate through the protruding end embedded into the groove.

Preferably, a positioning boss is arranged on the vacuum pump positioning part, a positioning groove is arranged at one end of the vacuum pump corresponding to the positioning boss, and the vacuum pump positioning part extends into the positioning groove through the positioning boss and is fixedly connected with the vacuum pump.

Preferably, the vacuum pump includes motor element, lower end cover, pump chamber and upper end cover, set up the rotor subassembly in the pump chamber, the constant head tank sets up on motor element, lower end cover, pump chamber and upper end cover set gradually from bottom to top, just motor element, lower end cover, pump chamber and upper end cover all set up corresponding bolt hole, set up the vacuum pump bolt in the bolt hole, the vacuum pump bolt passes the bolt hole on motor element, lower end cover, pump chamber and the upper end cover in proper order and connects motor element, lower end cover, pump chamber and upper end cover fixedly.

The utility model has the beneficial effects that: the simple vacuum pump self-centering device provided by the utility model has the structure which can support products under two conditions of pre-tightening installation and fastening installation. Namely, the vacuum pump positioning piece is provided with a positioning boss for installing and positioning the vacuum pump. The vacuum pump bolt is pre-installed and is provided with a gap, so that the initial positioning of the subsequent adjustment of the pump chamber is facilitated, and the phenomenon that the product shakes and displaces too much in the self-centering process to cause the self-positioning failure is prevented. When the internal execution mechanism of the vacuum pump is electrified and rotated, the principle of rotating around the gravity center under the action of centrifugal force is adopted, all the other parts are automatically aligned under the driving of the internal motor and the rotor, the positions of all the parts are ensured to be positioned at the rotating center, the eccentric wear of the pump chamber, the upper end cover and the internal rotation mechanism of the vacuum pump is avoided, and the assembling purpose is achieved. The utility model has the advantages of simple structure, convenient realization, low cost investment, simple and convenient operation and high production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention after installation of a vacuum pump;

FIG. 3 is a top view of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 1;

fig. 5 is an enlarged view of fig. 1 at B.

Reference numerals:

1. the device comprises a bottom plate, 2, a vacuum pump, 3, a vertical plate, 4, a vacuum pump positioning piece, 5, a movable pressing plate, 6, a power piece, 7, a guide connecting assembly, 8, a solid part, 9, a hollow part, 10, a movable cavity, 11, a guide shaft, 12, a linear bearing, 13, a connecting hole, 14, a bearing sleeve, 15, a ball, 16, a ball groove, 17, a set screw, 18, a top set screw, 19, a middle set screw, 20, a bottom set screw, 21, an ejector rod, 22, a fixing groove, 23, a mounting hole, 24, a mounting bolt, 25, a screw hole, 26, a rubber pad, 27, a protruding end, 28, a groove, 29, a positioning boss, 30, a positioning groove, 31, a motor assembly, 32, a lower end cover, 33, a pump chamber, 34 and an upper end cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model will be further described with reference to the accompanying drawings.

The utility model provides the following technical scheme:

the utility model discloses a self-centering device of an electronic vacuum pump for a vehicle, which comprises a bottom plate 1 and a vacuum pump 2, wherein a vertical plate 3 and a vacuum pump positioning part 4 are arranged on the bottom plate 1, the vertical plate 3 and the vacuum pump positioning part 4 are both arranged on two sides of the bottom plate 1, the vacuum pump 2 is arranged on the vacuum pump positioning part 4, a movable pressing plate 5 is arranged between the vertical plates 3 on the two sides, a power part 6 is arranged on the bottom plate 1, one end of the power part 6 is connected with the movable pressing plate 5, guide connecting assemblies 7 are arranged between two ends of the movable pressing plate 5 and the corresponding vertical plate 3, the movable pressing plate 5 is movably connected with the vertical plates 3 through the guide connecting assemblies 7, and the power part 6 drives the movable pressing plate 5 to move up and down between the vertical plates 3. Further, the riser 3 of both sides all has solid portion 8 and hollow portion 9, hollow portion 9 sets up in the top of solid portion 8, solid portion 8 sets up in the one side that riser 3 is close to bottom plate 1, form movable chamber 10 in the hollow portion 9, direction coupling assembling 7 sets up in movable chamber 10, set up vertical slot (not shown) on the both sides cell wall in movable chamber 10, the both ends of activity clamp plate 5 stretch into corresponding movable chamber 10 through corresponding vertical slot and are connected with direction coupling assembling 7.

Further, direction coupling assembling 7 includes guiding axle 11 and linear bearing 12, movable pressing plate 5 stretches into one of activity chamber 10 and sets up connecting hole 13, 11 both ends of guiding axle run through connecting hole 13 and the chamber wall in activity chamber 10 are connected, linear bearing 12 cover is established on the part that guiding axle 11 is located connecting hole 13. The linear bearing 12 includes a bearing housing 14 and balls 15, the bearing housing 14 is disposed in the connection hole 13, a ball groove 16 is formed between the bearing housing 14 and the guide shaft 11, the balls 15 are disposed in the ball groove 16, and the movable platen 5 reciprocates along the guide shaft 11 through the balls 15 in the bearing housing 14. Specifically, by arranging the linear bearing 12 in the connecting hole 13 of the movable platen 5 and fastening the linear bearing 12 in the connecting hole 13 by the set screw 17, the roller of the linear bearing 12 can smoothly reciprocate along the guide shaft 11 in the ball groove 16 formed between the bearing sleeve 14 and the guide shaft 11, and when the linear bearing 12 needs to be replaced and maintained, only the set screw 17 needs to be loosened, so that the set screw 17 does not apply pressure to the linear bearing 12 any more, and the linear bearing 12 can fall off from the connecting hole 13 and can be taken out of the linear bearing 12.

Further, erect the groove and erect the groove (not shown) including inboard perpendicular groove (not shown) and the outside, activity clamp plate 5 erects the groove through the inboard and stretches into movable chamber 10 and be connected with direction coupling assembling 7, the outside erects the inslot and sets up holding screw 17, holding screw 17's one end is erected the groove through the outside and is stretched into movable chamber 10 and carry out fastening connection to direction coupling assembling 7. Specifically, by arranging the inner vertical groove for the movable pressing plate 5 to extend into the movable cavity 10, the movable pressing plate 5 can reciprocate along the guide shaft 11, and the inner vertical groove can limit the horizontal direction of the movable pressing plate 5, so that the horizontal direction is prevented from being cheap in the process of moving the movable pressing plate 5 up and down; through setting up the outside and erecting the groove, can exert pressure towards activity clamp plate 5 center one side through holding screw 17 to linear bearing 12 for linear bearing 12 can be by holding screw 17 fastening in activity clamp plate 5's connecting hole 13, makes linear bearing 12 can not drop from connecting hole 13, causes the unable smooth and easy reciprocating motion along guide shaft 11 of activity clamp plate 5. In other embodiments, the set screws 17 may further include a top set screw 18, a middle set screw 19 and a bottom set screw 20, the middle set screw 19 is used for fastening the linear bearing 12, and the top set screw 18 and the bottom set screw 20 are used for fastening two ends of the guide shaft 11, so as to prevent the guide shaft 11 from shaking in the lifting process of the movable platen 5, and improve the stability of the whole lifting process.

Further, power piece 6 has ejector pin 21, the one end that power piece 6 was kept away from to ejector pin 21 supports the bottom of activity clamp plate 5, activity clamp plate 5 corresponds ejector pin 21 and sets up fixed slot 22, set up mounting hole 23 on the diapire of fixed slot 22, set up mounting bolt 24 in the fixed slot 22, mounting bolt 24's one end is passed through mounting hole 23 and is stretched out fixed slot 22, set up the screw 25 that corresponds mounting bolt 24 on the ejector pin 21, mounting bolt 24 stretches out the one end of fixed slot 22 and stretches into screw 25 and ejector pin 21 threaded connection. Specifically, in this embodiment, power spare 6 is the cylinder, through the ejector pin 21 of connecting movable clamp plate 5 and power room 6 with construction bolt 24, make power spare 6 carry out elevating movement under the drive of power spare 6 at motion in-process ejector pin 21, thereby drive movable clamp plate 6 and carry out elevating movement, and when needs are dismantled movable clamp plate 6 and are changed, only need to unscrew construction bolt 24, make no longer have ordinary relation of connection between movable clamp plate 6 and the ejector pin 21, can dismantle movable clamp plate.

Further, a rubber pad 26 is further arranged at the center of the bottom of the movable pressing plate 5, the rubber pad 26 is provided with a protruding end 27, a groove 28 is formed in the movable pressing plate 5 corresponding to the protruding end 27 of the rubber pad 26, and the rubber pad 26 is connected with the movable pressing plate 5 through the protruding end 27 being embedded into the groove 28. Specifically, through setting up rubber pad 26 in the bottom of activity clamp plate 5 for the rubber pad 26 of activity clamp plate 5 bottom compresses tightly with the 34 contacts of the upper end cover of vacuum pump 2, promotes frictional force between the two, thereby makes and can not produce the skew between the upper end cover 34 of vacuum pump 2 and the activity clamp plate 5, and the convenience is fixed a position the installation of vacuum pump bolt.

Furthermore, set up location boss 29 on the vacuum pump setting element 4, the one end of vacuum pump 2 corresponds location boss 29 and sets up constant head tank 30, vacuum pump setting element 4 stretches into constant head tank 30 through location boss 29 and is connected fixedly with vacuum pump 2. Specifically, through set up the constant head tank 30 that corresponds with location boss 29 on the vacuum pump setting element 4 on the motor element 31 of vacuum pump 2, can be swift fix vacuum pump 2 on this device, need not to carry out remaining alignment work to vacuum pump 2 again, and in this design, when vacuum pump 2 is fixing on vacuum pump setting element 4, vacuum pump 2 is in same position with bottom plate 1's axis.

Further, the vacuum pump 2 includes a motor assembly 31, a lower end cap 32, a pump chamber 33 and an upper end cap 34, a rotor assembly (not shown) is disposed in the pump chamber 33, the positioning groove 30 is disposed on the motor assembly 31, the lower end cap 32, the pump chamber 33 and the upper end cap 34 are sequentially disposed from bottom to top, corresponding bolt holes (not shown) are disposed in the motor assembly 31, the lower end cap 32, the pump chamber 33 and the upper end cap 34, vacuum pump bolts (not shown) are disposed in the bolt holes, and the vacuum pump bolts sequentially penetrate through the bolt holes in the motor assembly 31, the lower end cap 32, the pump chamber 33 and the upper end cap 34 to connect and fix the motor assembly 31, the lower end cap 32, the pump chamber 33 and the upper end cap 34.

The utility model also discloses an operation method of the self-centering device of the vehicle electronic vacuum pump, which comprises the following steps:

s1: the lower end cover 32, the rotor assembly, the pump chamber 33 and the upper end cover 34 are sequentially placed on the motor assembly 31 in advance, the mounting holes 23 of the upper end cover 34, the pump chamber 33, the lower end cover 32 and the motor assembly 31 are respectively pre-inserted by using vacuum pump bolts, and the vacuum pump bolts are not screwed;

s2: connecting a pre-installed vacuum pump 2 with a positioning boss 29 on a vacuum pump positioning piece 4 through a positioning groove 30 on a motor assembly 31, so that the vacuum pump 2 is fixed on the vacuum pump positioning piece 4;

s3: according to the torque performance of the motor assembly 31 of the vacuum pump 2, a 2V-3V low-voltage power supply is adopted for connection, a power switch is started, and through the principle that when the motor assembly 31 in the vacuum pump 2 is electrified and rotates, the motor assembly rotates around the gravity center under the action of centrifugal force, other parts are automatically aligned under the driving of the internal motor assembly 31 and a rotor, the positions of all parts are ensured to be in the rotation center, the eccentric wear of the pump chamber 33, the upper end cover 34 and the rotor assembly in the vacuum pump 2 is ensured not to occur, and the assembling purpose is achieved;

s4: after the components are stressed and adjusted stably, an air source switch is started, the ejector rods 21 of the power parts 6 on two sides push the movable pressing plate 5 to stably and vertically slide downwards along the guide shaft 11 until the rubber pads 26 on the movable pressing plate 5 press the upper end cover 34 of the vacuum pump 2, and the vacuum pump bolts are screwed down by an external tool to fix the upper end cover 34, the pump chamber 33 and the lower end cover 32 with the motor assembly 31;

s5: and (4) closing the power switch and the air switch in sequence, pushing the movable pressing plate 5 to slide upwards and return by the ejector rods 21 of the power parts 6 at two sides, taking out the vacuum pump 2, and finishing assembly.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The utility model provides a self-centering device of automobile-used electron vacuum pump which characterized in that: including bottom plate and vacuum pump, set up riser and vacuum pump setting element on the bottom plate, riser and vacuum pump setting element all set up the both sides at the bottom plate, the vacuum pump sets up on the vacuum pump setting element, set up the moving press plate between the riser of both sides, set up power spare on the bottom plate, the one end and the moving press plate of power spare are connected, all set up direction coupling assembling between the both ends of moving press plate and the riser that corresponds, the moving press plate passes through direction coupling assembling and riser swing joint, just power spare drives moving press plate elevating movement between the riser.

2. The self-centering device of an electronic vacuum pump for vehicles according to claim 1, wherein: the vertical plates on two sides are provided with solid parts and hollow parts, the hollow parts are arranged above the solid parts, the solid parts are arranged on one sides, close to the bottom plate, of the vertical plates, movable cavities are formed in the hollow parts, the guide connecting assemblies are arranged in the movable cavities, vertical grooves are formed in the wall of each of two side walls of each movable cavity, and two ends of each movable pressing plate stretch into the corresponding movable cavities through the corresponding vertical grooves to be connected with the guide connecting assemblies.

3. The self-centering device of an electronic vacuum pump for a vehicle of claim 2, wherein: the guide connecting assembly comprises a guide shaft and a linear bearing, wherein the movable pressing plate stretches into one end of the movable cavity to be provided with a connecting hole, two ends of the guide shaft penetrate through the connecting hole to be connected with the cavity wall of the movable cavity, and the linear bearing is sleeved on the part, located in the connecting hole, of the guide shaft.

4. The self-centering device of an electronic vacuum pump for a vehicle of claim 3, wherein: the linear bearing comprises a bearing sleeve and balls, the bearing sleeve is arranged in the connecting hole, a ball groove is formed between the bearing sleeve and the guide shaft, the balls are arranged in the ball groove, and the movable pressing plate reciprocates along the guide shaft through the balls in the bearing sleeve.

5. The self-centering device of an electronic vacuum pump for a vehicle of claim 2, wherein: erect the groove and erect the groove including inboard perpendicular groove and the outside, the activity clamp plate erects the groove through the inboard and stretches into movable chamber and be connected with direction coupling assembling, the outside erects the inslot and sets up holding screw, holding screw's one end is erected the groove through the outside and is stretched into movable chamber and carry out fastening connection to direction coupling assembling.

6. The self-centering device of an electronic vacuum pump for vehicles according to claim 1, wherein: the power part has the ejector pin, the one end that the power part was kept away from to the ejector pin supports the bottom of activity clamp plate, the activity clamp plate corresponds the ejector pin and sets up the fixed slot, set up the mounting hole on the diapire of fixed slot, set up mounting bolt in the fixed slot, mounting bolt's one end stretches out the fixed slot through the mounting hole, set up the screw that corresponds mounting bolt on the ejector pin, the one end that mounting bolt stretched out the fixed slot stretches into screw and ejector pin threaded connection.

7. The self-centering device of an electronic vacuum pump for a vehicle of claim 6, wherein: the rubber pad is arranged at the center of the bottom of the movable pressing plate and provided with a protruding end, a groove is formed in the movable pressing plate corresponding to the protruding end of the rubber pad, and the rubber pad is embedded into the groove through the protruding end and connected with the movable pressing plate.

8. The self-centering device of an electronic vacuum pump for vehicles according to claim 1, wherein: the vacuum pump positioning part is provided with a positioning boss, one end of the vacuum pump is provided with a positioning groove corresponding to the positioning boss, and the vacuum pump positioning part extends into the positioning groove through the positioning boss and is fixedly connected with the vacuum pump.

9. The self-centering device of an electronic vacuum pump for vehicles according to claim 8, wherein: the vacuum pump comprises a motor assembly, a lower end cover, a pump chamber and an upper end cover, wherein a rotor assembly is arranged in the pump chamber, a positioning groove is formed in the motor assembly, the lower end cover, the pump chamber and the upper end cover are sequentially arranged from bottom to top, corresponding bolt holes are formed in the motor assembly, the lower end cover, the pump chamber and the upper end cover, vacuum pump bolts are arranged in the bolt holes, and the vacuum pump bolts sequentially penetrate through the bolt holes in the motor assembly, the lower end cover, the pump chamber and the upper end cover to fixedly connect the motor assembly, the lower end cover, the pump chamber and the upper end cover.

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