CN111195570A - Driving mechanism of electric spraying machine - Google Patents
Driving mechanism of electric spraying machine Download PDFInfo
- Publication number
- CN111195570A CN111195570A CN202010158187.3A CN202010158187A CN111195570A CN 111195570 A CN111195570 A CN 111195570A CN 202010158187 A CN202010158187 A CN 202010158187A CN 111195570 A CN111195570 A CN 111195570A
- Authority
- CN
- China
- Prior art keywords
- lead screw
- connecting plate
- screw nut
- plunger pump
- nut connecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
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- Reciprocating Pumps (AREA)
Abstract
The invention provides a driving mechanism of an electric spraying machine, which comprises: the device comprises a rack, a servo motor, a plunger pump, a lead screw and a lead screw nut connecting plate; the servo motor is connected with the lead screw and used for driving the lead screw to rotate forwards and reversely, the lead screw nut connecting plate is matched with the lead screw in a threaded mode and used for achieving reciprocating linear motion, and the plunger pump is connected with the lead screw nut connecting plate and used for achieving reciprocating linear motion under the driving of the lead screw nut connecting plate. The mechanism utilizes the high controllability of the rotating speed and the torque of the servo motor to convert the positive rotation and the negative rotation of the motor into linear reciprocating motion through the lead screw nut to drive the plunger pump, and has the advantages of simple structure, high reliability and low failure rate.
Description
Technical Field
The invention mainly relates to the technical field of spraying machines, in particular to a driving mechanism of an electric spraying machine.
Background
The traditional reciprocating coating machine driving mechanism mainly comprises an electric driving mechanism, a hydraulic driving mechanism and a pneumatic driving mechanism. The electrodynamic type adopts direct current motor and crank connecting rod slider mechanism, and the shortcoming of this kind of mechanism is when the flush coater standby (spray gun stops the spraying), because of the flush coater still need keep pressure, in order to prevent that the motor from stifled commentaries on classics, must let the motor continue to rotate through the mode that makes the material overflow, and this kind of mode is complicated not only, and the material after the overflow flows back to the container in addition, and this in-process material sneaks into the air easily, and the temperature risees, causes the material degradation, influences the construction effect. The hydraulic mechanism and the pneumatic mechanism both adopt related parts such as an electromagnetic directional valve and the like, the structure is complex, parts are more, the requirement on the capability of maintenance personnel is high, the hydraulic equipment is provided with a hydraulic station, the weight of the equipment is larger, the pneumatic equipment needs to be provided with a large-displacement air pump (generally more than 0.9 cubic meter), the movement and the transportation are inconvenient, and the multi-component proportional control is difficult to implement.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the driving mechanism of the electric spraying machine by combining the prior art and starting from practical application, the driving mechanism utilizes the high controllability of the rotating speed and the torque of a servo motor to convert the positive rotation and the negative rotation of the motor into linear reciprocating motion through a lead screw nut so as to drive a plunger pump, and has the advantages of simple structure, high reliability and low failure rate.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an electric applicator drive mechanism comprising: the device comprises a rack, a servo motor, a plunger pump, a lead screw and a lead screw nut connecting plate;
the servo motor is connected with the lead screw and used for driving the lead screw to rotate forwards and reversely, the lead screw nut connecting plate is matched with the lead screw in a threaded mode and used for achieving reciprocating linear motion, and the plunger pump is connected with the lead screw nut connecting plate and used for achieving reciprocating linear motion under the driving of the lead screw nut connecting plate.
Further, the frame includes motor board, connecting plate and the extension board down that the interval set up in proper order, servo motor is fixed in on the motor board, the plunger pump sets up on the extension board down, be equipped with the guiding mechanism who is used for lead screw nut connecting plate direction on the connecting plate.
Furthermore, guiding mechanism includes a plurality of slide bar, the slide bar with connecting plate sliding fit, slide bar one end with lead screw nut connecting plate fixed connection.
Further, a linear bearing is arranged between the sliding rod and the connecting plate.
Furthermore, the lead screw is provided with a bearing for supporting the lead screw, the bearing is installed in a first flange, and the first flange is installed on the connecting plate.
Furthermore, the servo motor is connected with the screw rod through a first coupler.
Furthermore, a connecting sleeve is arranged on the lead screw nut connecting plate, a second flange is arranged at one end of the connecting sleeve, and one end of the second flange is connected with the plunger pump through a second coupling.
The invention has the beneficial effects that:
1. the invention utilizes the high controllability of the rotating speed and the torque of the servo motor to convert the positive rotation and the negative rotation of the motor into the linear reciprocating motion through the lead screw nut to drive the plunger pump, and has simple structure, high reliability and low failure rate.
2. The invention has simple structure, can maintain pressure at any time for standby, and does not need material backflow.
3. The invention can form a multi-component spraying machine on line, and in the spraying of multi-component materials, the multi-component large-proportion stepless proportioning (more than 1/10000 can be realized theoretically) can be realized through the internal control of the upper computer and the servo motor, and a plurality of materials are fed according to the preset proportion and the preset sequence.
4. The invention can realize the reciprocating motion with larger stroke (relative to a crank connecting rod sliding block mechanism) through the lead screw and the nut, and greatly reduces the pressure fluctuation (relative to the crank connecting rod sliding block mechanism).
5. The invention greatly reduces energy consumption (relative to pneumatics) and responds to national calls for energy conservation and emission reduction.
Drawings
FIG. 1 is a schematic view of the frame structure of the present invention;
fig. 2 is a schematic structural diagram of the driving mechanism of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Fig. 1 and 2 are schematic diagrams of related structures of a driving mechanism of an electric spraying machine provided by the invention. The mechanism can be applied to polyurethane polyurea coating machines and linear reciprocating plunger pump type coating machines for other materials (paint or coating).
The mechanism mainly comprises: the device comprises a rack, a servo motor 1, a plunger pump 11, a lead screw 6 and a lead screw nut connecting plate 7. The rack mainly comprises a motor plate 102, a connecting plate 101 and a lower support plate 103 which are sequentially arranged from top to bottom at intervals, the motor plate 102 and the connecting plate 101 are connected through a first bolt group 104, and the connecting plate 101 and the lower support plate 103 are connected through a first bolt group 105. The servo motor 1 is connected with the motor plate 102 through the first bolt 30, the servo motor spindle 2 is connected with the first coupler 3, and the first coupler 3 is connected with the lead screw 6. The upper end of the screw rod 6 is connected with a bearing 5, the bearing 5 is connected with a first flange 20, the first flange 20 is connected with a nut 4, and the first flange 20 is connected with a connecting plate 101 through a second bolt 33. The screw 6 is connected with the screw nut connecting plate 7 to form screw transmission, the screw nut connecting plate 7 is connected with the plunger pump 11, and the plunger pump 11 is mounted on the lower support plate 103 through a third bolt 38. In one embodiment provided by the invention, the lower end of the screw nut connecting plate 7 is connected with a connecting sleeve 8 through a fourth bolt 36, the connecting sleeve 8 is connected with a second flange 9 through a fifth bolt 37, the lower end of the second flange 9 is connected with a second coupling 10, and the second coupling 10 is connected with the plunger pump main shaft 12.
In the invention, the cooperation of the screw rod 6 and the screw rod nut connecting plate 7 can change the positive and negative rotation motion of the servo motor 1 into reciprocating linear motion and then transmit the reciprocating linear motion to the plunger pump 11, thereby driving the plunger pump 11 to realize the reciprocating linear motion.
In the invention, in order to ensure the running stability of the driving mechanism, a corresponding guide mechanism is arranged between the connecting plate 101 and the lead screw nut connecting plate 7. Specifically, the guide mechanism comprises a plurality of sliding rods 34, the linear bearings 32 are connected with the connecting plate 101 through sixth bolts 31 and are in sliding connection with the sliding rods 34, and one end of the lead screw nut connecting plate 7 is connected with the sliding rods 34 through seventh bolts 35. The guide of the sliding rod 34 ensures the stable reciprocating linear motion of the lead screw nut connecting plate 7.
The working principle of the invention is as follows:
when the servo motor 1 is powered on, the motor spindle 2 can realize positive and negative rotation according to set parameters. Because the motor spindle 2 is connected with the lead screw 6 through the first coupler 3, the lead screw 6 can synchronously rotate forwards and backwards along with the motor spindle 2;
because the screw 6 and the screw nut connecting plate 7 are in screw transmission, and the nut connecting plate 7 is provided with the sliding rod 34, the sliding rod 34 and the linear bearing 32 fixed on the connecting plate 101 form sliding fit. Therefore, under the driving of the forward and reverse rotation of the screw rod 6, the screw rod nut connecting plate 7 reciprocates up and down due to screw transmission, on one hand, the sliding rod 34 is driven to slide in the linear bearing 32, and on the other hand, the connecting sleeve 8 is driven to reciprocate up and down;
the up-and-down reciprocating movement of the connecting sleeve 8 can drive the up-and-down reciprocating movement of the plunger pump main shaft 12, so that the plunger pump 11 works.
Claims (7)
1. An electric applicator drive mechanism, comprising: the device comprises a rack, a servo motor, a plunger pump, a lead screw and a lead screw nut connecting plate;
the servo motor is connected with the lead screw and used for driving the lead screw to rotate forwards and reversely, the lead screw nut connecting plate is matched with the lead screw in a threaded mode and used for achieving reciprocating linear motion, and the plunger pump is connected with the lead screw nut connecting plate and used for achieving reciprocating linear motion under the driving of the lead screw nut connecting plate.
2. The drive mechanism of claim 1, wherein the frame includes a motor plate, a connecting plate and a lower support plate, the motor plate, the connecting plate and the lower support plate being spaced apart from each other, the servo motor being fixed to the motor plate, the plunger pump being disposed on the lower support plate, and the connecting plate being provided with a guide mechanism for guiding the lead screw nut connecting plate.
3. The actuator assembly of claim 2 wherein said guide mechanism includes a plurality of slide rods slidably engaged with said connecting plate, one end of said slide rods being fixedly connected to said lead screw nut connecting plate.
4. An electric sprayer actuator as in claim 3 wherein linear bearings are provided between the slide rod and the connecting plate.
5. An electric sprayer actuator as in claim 2 wherein the lead screw has a bearing for supporting the lead screw, the bearing being mounted in a first flange mounted to the web.
6. The electric applicator drive mechanism of claim 1, wherein the servo motor is coupled to the lead screw by a first coupling.
7. The electric sprayer driving mechanism according to claim 1, wherein the screw nut connecting plate is provided with a connecting sleeve, one end of the connecting sleeve is provided with a second flange, and one end of the second flange is connected with the plunger pump through a second connector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010158187.3A CN111195570A (en) | 2020-03-09 | 2020-03-09 | Driving mechanism of electric spraying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010158187.3A CN111195570A (en) | 2020-03-09 | 2020-03-09 | Driving mechanism of electric spraying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111195570A true CN111195570A (en) | 2020-05-26 |
Family
ID=70742571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010158187.3A Withdrawn CN111195570A (en) | 2020-03-09 | 2020-03-09 | Driving mechanism of electric spraying machine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111195570A (en) |
-
2020
- 2020-03-09 CN CN202010158187.3A patent/CN111195570A/en not_active Withdrawn
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WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200526 |
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WW01 | Invention patent application withdrawn after publication |