CN108533581B - Double-ion-layer lubrication structure, equipment and lubrication method - Google Patents

Double-ion-layer lubrication structure, equipment and lubrication method Download PDF

Info

Publication number
CN108533581B
CN108533581B CN201810441365.6A CN201810441365A CN108533581B CN 108533581 B CN108533581 B CN 108533581B CN 201810441365 A CN201810441365 A CN 201810441365A CN 108533581 B CN108533581 B CN 108533581B
Authority
CN
China
Prior art keywords
conveying
pipeline
lead wire
ion
power supply
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.)
Active
Application number
CN201810441365.6A
Other languages
Chinese (zh)
Other versions
CN108533581A (en
Inventor
李宗津
曹香鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Mingyuan Building Technology Co ltd
Original Assignee
Shenzhen Mingyuan Building Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Mingyuan Building Technology Co ltd filed Critical Shenzhen Mingyuan Building Technology Co ltd
Priority to CN201810441365.6A priority Critical patent/CN108533581B/en
Publication of CN108533581A publication Critical patent/CN108533581A/en
Application granted granted Critical
Publication of CN108533581B publication Critical patent/CN108533581B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15DFLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00Influencing flow of fluids
    • F15D1/002Influencing flow of fluids by influencing the boundary layer
    • F15D1/0065Influencing flow of fluids by influencing the boundary layer using active means, e.g. supplying external energy or injecting fluid
    • F15D1/0075Influencing flow of fluids by influencing the boundary layer using active means, e.g. supplying external energy or injecting fluid comprising electromagnetic or electrostatic means for influencing the state of the fluid, e.g. for ionising the fluid or for generating a plasma

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pusher Or Impeller Conveyors (AREA)

Abstract

The invention discloses a double-ion-layer lubrication structure, equipment and a lubrication method, wherein the lubrication structure comprises the following components: a power supply, a delivery end lead wire, a push lead wire, a delivery end conduit, and a push member; the conveying end pipeline is used for bearing materials containing ions and is connected with a power supply through a conveying end lead wire; the pushing piece is arranged in the conveying end pipeline and connected with the power supply for pushing the materials to move; the power supply is used for supplying power to the pipeline at the conveying end and the pushing piece after being started so as to enable a first ion layer to be formed between the pipeline wall and the material, and a second ion layer to be formed between the outer surface of the pushing piece and the material. According to the lubricating structure provided by the invention, when materials containing ions such as concrete are conveyed, a power supply is started for electrifying, so that a first ion layer is formed between the inner wall of a conveying end pipeline and the materials, and a second ion layer is formed between the outer surface of a pushing piece and the materials for lubrication, and the problem of higher lubrication cost when the materials containing ions are conveyed is solved.

Description

Double-ion-layer lubrication structure, equipment and lubrication method
Technical Field
The invention relates to the technical field of material conveying, in particular to a double-ion-layer lubricating structure, equipment and a lubricating method.
Background
The material conveying efficiency can be improved by lubricating in the material conveying process, and the abrasion of a conveying pipeline is reduced. In the prior art, the lubrication method and the structure used in the material conveying process are various.
Taking concrete delivery as an example, the prior art concrete requires that the inner wall of the delivery tube be lubricated with a suitable amount of cement paste or cement mortar of the same composition as the concrete prior to pumping. And in the process of pumping concrete, a pumping agent is usually required to be added into the concrete, wherein the pumping agent refers to an additive capable of improving the pumping performance of the concrete mixture. The pumping performance is that the concrete mixture has good performance of smoothly passing through a conveying pipeline, no blockage, no segregation and good viscoplasticity.
In other words, there are various pumping devices for delivering concrete or the like, such as pump truck, vehicle-mounted pump, drag pump, stirring and distributing pump truck, wet spraying machine, etc., and the pumping device in the prior art generally has the following structure: the device comprises a hopper for holding materials, a pumping mechanism for pumping the hopper, a distributing mechanism connected with the pumping mechanism and a stirring mechanism connected with the distributing mechanism, wherein the distributing mechanism mainly adopts an S valve or a skirt valve as a distributing element for distributing.
When the S valve is adopted, the two single-action plunger cylinders push the S valve to swing, so that the sucking and discharging of the pumping cylinder are realized. The S valve plays a supporting role through the large end supporting ring and the small end supporting ring. Through adjusting the nut, can make S pipe axial displacement to make the cutting ring that overlaps on the S valve compress tightly the eye board, guarantee the leakproofness in the pumping process.
When the skirt valve is adopted, the skirt valve is pushed to swing by the two single-acting plunger cylinders, so that the suction and discharge of the pumping cylinders are realized. Because the skirt valve structure is different from the S valve structure, the aggregate flow resistance is smaller than that of the S valve structure when the skirt valve structure is used for pumping, but the material sucking property is poorer than that of the S valve structure.
The mode of carrying out material conveying lubrication by adding the pumping agent or improving the pumping device has higher cost.
It can be seen that the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a double-ion-layer lubrication structure, equipment and a lubrication method, which aim to at least solve the problem of high lubrication cost in the concrete conveying process in the prior art.
The technical scheme of the invention is as follows:
a dual-ion-layer lubrication structure, comprising: a power supply, a delivery end lead wire, a push lead wire, a delivery end conduit, and a push member; the conveying end pipeline is used for bearing materials containing ions and is connected with a power supply through a conveying end lead wire; the pushing piece is arranged in the conveying end pipeline, is connected with a power supply through a pushing lead wire and is used for pushing the materials to move; the power supply is used for supplying power to the conveying end pipeline and the pushing piece after being started so that a first ion layer is formed between the inner wall of the conveying end pipeline and the material, and a second ion layer is formed between the outer surface of the pushing piece and the material.
Further, a conveying end electrode plate is fixed on the pipeline wall of the conveying end pipeline, and the conveying end lead wire is connected with the conveying end pipeline through the conveying end electrode plate.
Further, the power supply is an alternating current power supply, either one of the first lead wire and the second lead wire is a zero wire, and the other one of the first lead wire and the second lead wire is a fire wire.
Further, the power supply is a direct current power supply, any one of the first lead wire and the second lead wire is a positive lead wire, and the other one of the first lead wire and the second lead wire is a negative lead wire.
Further, the dual-ion layer lubrication structure further includes: the first conveying pipeline is connected with the conveying end pipeline in an insulating manner and is positioned in the material conveying direction of the conveying pipeline; the first conveying pipelines are also connected with a power supply through first lead wires which are arranged in a one-to-one correspondence mode.
Further, a first electrode plate is fixed on the pipeline wall of the first conveying end pipeline, and the first lead wire is connected with the first conveying pipeline through the first electrode plate.
Further, the dual-ion layer lubrication structure further includes: the second conveying pipeline is connected with the first conveying pipeline and is positioned in the material conveying direction of the first conveying pipeline; the first conveying pipelines are also connected with a power supply through first lead wires which are arranged in a one-to-one correspondence mode.
Further, the first conveying pipeline and the second conveying pipeline can be provided with a plurality of first conveying pipelines and a plurality of second conveying pipelines which are arranged in a staggered mode.
An apparatus comprising a dual ionic layer lubrication as described above, wherein the apparatus is a 3D printer, a pump or a conveyor.
A lubrication method achieved by the double-ion-layer lubrication structure as described above, comprising the steps of:
the power supply is started, and power is supplied to the conveying-end pipeline and the pushing piece through the conveying-end lead wire and the pushing lead wire respectively;
ions in the material move to the conveying end pipeline and the pushing piece respectively, a first ion layer is formed between the inner wall of the conveying end pipeline and the material, and a second ion layer is formed between the outer surface of the pushing piece and the material.
Compared with the prior art, the double-ion-layer lubrication structure provided by the invention adopts a power supply, a conveying end lead wire, a pushing lead wire, a conveying end pipeline and a pushing piece; the conveying end pipeline is used for bearing materials containing ions and is connected with a power supply through a conveying end lead wire; the pushing piece is arranged in the conveying end pipeline, is connected with a power supply through a pushing lead wire and is used for pushing the materials to move; the power supply is used for supplying power to the conveying end pipeline and the pushing piece after being started so that a first ion layer is formed between the inner wall of the conveying end pipeline and the material, and a second ion layer is formed between the outer surface of the pushing piece and the material. When materials containing ions such as concrete are conveyed, a power supply is started to electrify, a first ion layer is formed between the inner wall of a conveying end pipeline and the materials, and a second ion layer is formed between the outer surface of a pushing piece and the materials to lubricate, so that the problem of high lubrication cost during conveying of the materials containing ions is solved.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of a dual-ion-layer lubrication structure according to the present invention.
FIG. 2 is a schematic diagram of a dual-ion-layer lubrication structure according to a further preferred embodiment of the present invention.
Detailed Description
The invention provides a double-ion-layer lubrication structure, equipment and a lubrication method, which are used for making the purposes, technical schemes and effects of the invention clearer and more definite, and the invention is further described in detail below by referring to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in FIG. 1, the invention discloses a double-ion-layer lubrication structure which can be widely applied, and as free ions in materials are adsorbed between the inner wall of a pipeline at a conveying end and the materials and between the outer surface of a pushing piece and the materials by electrifying, all the materials containing the free ions can be lubricated by the double-ion-layer lubrication structure disclosed by the invention.
In a preferred embodiment, the dual-ion layer lubrication structure comprises: the device comprises a power supply, a conveying end lead wire, a pushing lead wire, a conveying end pipeline and a pushing piece. The conveying end pipeline is used for bearing materials containing ions and is connected with a power supply through a conveying end lead wire; the pushing piece is arranged in the conveying end pipeline and connected with a power supply through a pushing lead wire and used for pushing the material to move along the conveying end pipeline. The pushing piece can be a single screw rod, a piston rod or a double screw rod and other structures, so long as the pushing of materials can be realized, and the invention is not particularly limited.
When the power supply is started, free ions in the material move towards the conveying end guide pipe and the pushing piece to form a first ion layer and a second ion layer, the first ion layer can reduce friction force between the conveying end pipeline and the material, and the second ion layer can reduce friction force between the pushing piece and the material. The lubricating mode is free from additives such as pumping agents, is extremely convenient and has low cost.
Further, a conveying end electrode plate is fixed on the pipeline wall of the conveying end pipeline, and the conveying end lead wire is connected with the conveying end pipeline through the conveying end electrode plate. The fixing manner of the electrode plate at the conveying end is various, such as conductive welding, anchoring and the like, which belongs to the prior art, and the invention is not particularly limited to the above.
In a further preferred embodiment of the present invention, the dual-ion layer lubrication structure further comprises: the conveying pipe group is used for conveying materials containing ions; it should be noted here that extrusion of materials also requires movement of materials, and while the present invention has been described in terms of a set of delivery tubes for the delivery of ion-containing materials, it should be understood that extrusion of ion-containing materials is also included.
The delivery tube set includes: a first delivery conduit 310 and a second delivery conduit 320; wherein the first delivery pipe 310 is connected to the power source 100 through the first lead line 210, and the second delivery pipe 320 is connected to the power source 100 through the second lead line 220. When the power supply 100 is started, the first conveying pipeline 310 and the second conveying pipeline 320 are electrified to move the free ions in the adsorbed material towards the inner wall direction of the pipeline to form a third ion layer, and the material can reduce friction with the inner wall of the pipeline through the third ion layer, so that the third ion layer also plays a role in lubrication.
The conveying pipe group is provided with one or more groups, when the conveying pipe group is provided with a plurality of groups, the double-ion-layer lubrication structure is also provided with a plurality of first conveying pipelines 310 and a plurality of second conveying pipelines 320, at this time, the plurality of first conveying pipelines 310 and the plurality of second conveying pipelines 320 are arranged in a staggered manner, as shown in fig. 2, the conveying pipelines which are sequentially arranged from the second left side to the rightmost side are respectively: the first conveying pipeline 310, the second conveying pipeline 320, the first conveying pipeline 310, the second conveying pipelines 320 and … …, the first conveying pipeline 310 and the second conveying pipeline 320 are crossed by a line, and the other conveying pipelines except the first conveying pipeline 310 and the second conveying pipeline 320 at the leftmost side are not labeled one by one. And correspondingly connected, the plurality of lead wires below the conveying pipeline are first lead wires 210, the plurality of lead wires above the conveying pipeline are second lead wires 220, and the same is the intersection of the defending wires, and only the first lead wires 210 (connected with the first conveying pipeline 310 at the leftmost side) and the second lead wires 220 (connected with the second conveying pipeline 320 at the leftmost side) at the outermost side are marked in fig. 2.
In addition, it should be noted that the first conveying pipe 310 and the second conveying pipe 320 are divided by positions, and are the same as the first conveying pipe 310, and the shape and the size of the leftmost first conveying pipe 310 and the first conveying pipe 310 arranged behind the leftmost first conveying pipe are not necessarily the same; similarly, the second conveying pipe 320 is the same as the leftmost second conveying pipe 320, and the shape and size of the second conveying pipe 320 arranged behind the leftmost second conveying pipe are not necessarily the same. That is, the first conveying pipe 310 and the second conveying pipe 320 according to the present invention are arranged only according to the positions: the first delivery conduit 310, the second delivery conduit 320, … …, the first delivery conduit 310, and the second delivery conduit 320 are distinguished from one another without being categorized by whether they are identical in shape or not, and whether they are identical in size or not. For example, one or more of the delivery conduits (first delivery conduit 310 and/or second delivery conduit 320) may be an elbow and the other delivery conduit may be a straight conduit.
In addition, the conveying end pipeline is the same as the first conveying pipeline and the second conveying pipeline, and the conveying end pipeline is irrelevant to the shape or the size, but because a pushing piece is arranged in the conveying end pipeline; similarly, the connection relationship between the transmission end lead wire and the pushing lead wire and the connection relationship between the transmission end pipeline, the pushing piece, the first transmission pipeline, the second transmission pipeline and the power supply are described clearly, and the transmission end lead wire, the pushing lead wire, the first lead wire and the second lead wire are named differently.
It is not easy to understand that the problems of the number, shape and the like of the pipelines are related to a specific application scene, and whether the second conveying pipeline is arranged or not does not influence the use of the double-ion-layer lubrication structure.
Besides reducing the lubrication cost, the double-ion-layer lubrication structure disclosed by the invention has the following advantages: 1) The labor intensity of operators is reduced; 2) The phenomenon of early abrasion of the cantilever crane shaft sleeve caused by unscheduled oiling and forgetting oiling of operators is avoided; 3) Experiments prove that the friction force between the concrete and the pipeline wall is reduced by at least 30% compared with the friction force generated by the lubricating structure adopted in the prior art.
In a further preferred embodiment of the present invention, a first electrode plate is fixed on the outer wall of the first conveying pipe 310, and the first lead wire 210 is connected to the first conveying pipe 310 through the first electrode plate; and/or a second electrode plate is fixed on the outer wall of the second conveying pipeline 320, and the second lead wire 220 is connected with the second conveying pipeline 320 through the second electrode plate. Or the pipeline can be directly used as the electrode plate, that is, the lead wire is directly and electrically connected to the outer wall of the pipeline.
The fixing mode of the electrode plate is not particularly limited, and can be realized by conducting welding, anchoring and the like.
In practice, the power supply 100 may be a dc power supply or an ac power supply. When the power supply 100 is a dc power supply, either the first lead line 210 or the second lead line 220 is a positive lead line, and the other is a negative lead line. When the power supply 100 is an ac power supply, either the first lead line 210 or the second lead line 220 is a neutral line, and the other is a live line.
The double-ion-layer lubricating structure disclosed by the invention greatly reduces the friction resistance of concrete extrusion, improves the concrete extrusion efficiency, reduces the energy consumption, saves energy and protects the environment. The lubrication technology in the traditional material conveying process is changed in a breakthrough way, a new idea and a new direction of a concrete extrusion lubrication technology are provided, opposite electrodes are generated by applying voltages to the first conveying pipeline 310 and the second conveying pipeline 320, and a closed loop circuit is formed by the opposite electrodes and ions in the concrete flowing process, so that an electric field is formed, and no constraint is imposed on direct current or alternating current.
The invention also provides a printhead comprising a dual ion layer lubrication as described above.
The invention also provides equipment comprising the double-ion-layer lubricating structure, wherein the equipment is a 3D printer, a pumping machine or a conveyor.
In addition, the invention also provides a lubrication method realized by the double-ion-layer lubrication structure, which comprises the following steps:
the power supply is started, and power is supplied to the conveying-end pipeline and the pushing piece through the conveying-end lead wire and the pushing lead wire respectively, and the structure is particularly described in the embodiment;
ions in the material move to the conveying end pipeline and the pushing piece respectively, a first ion layer is formed between the inner wall of the conveying end pipeline and the material, and a second ion layer is formed between the outer surface of the pushing piece and the material, specifically, as described in the structural embodiment above.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.

Claims (10)

1. A dual-ion-layer lubrication structure, comprising: a power supply, a delivery end lead wire, a pushing lead wire, a delivery end pipeline, a delivery pipe group and a pushing piece; the conveying end pipeline is used for bearing materials containing ions and is connected with a power supply through a conveying end lead wire; the pushing piece is arranged in the conveying end pipeline, is connected with a power supply through a pushing lead wire and is used for pushing the materials to move; the power supply is used for supplying power to the conveying end pipeline and the pushing piece after being started so as to enable a first ion layer to be formed between the inner wall of the conveying end pipeline and the material, and a second ion layer to be formed between the outer surface of the pushing piece and the material;
the conveying pipe group comprises a plurality of groups of first conveying pipelines and second conveying pipelines; the first conveying pipeline is connected with the power supply through a first lead wire, and the second conveying pipeline is connected with the power supply through a second lead wire;
and electrifying the first conveying pipeline and the second conveying pipeline, and moving free ions in the adsorbed material to the direction of the inner wall of the pipeline to form a third ion layer.
2. The double-ion-layer lubrication structure according to claim 1, wherein a transport-end electrode sheet is fixed to a pipe wall of the transport-end pipe, and the transport-end lead wire is connected to the transport-end pipe through the transport-end electrode sheet.
3. The dual-ion lubrication structure of claim 1, wherein the power source is an ac power source, either one of the first and second lead wires is a neutral wire, and the other one is a live wire.
4. The dual-ion-layer lubrication structure according to claim 1, wherein the power source is a direct current power source, either one of the first lead wire and the second lead wire is a positive lead wire, and the other one of the first lead wire and the second lead wire is a negative lead wire.
5. The dual ionic layer lubrication structure as claimed in claim 1, further comprising: the first conveying pipeline is connected with the conveying end pipeline and is positioned in the material conveying direction of the conveying pipeline; the first conveying pipelines are also connected with a power supply through first lead wires which are arranged in a one-to-one correspondence mode.
6. The double-ion-layer lubrication structure according to claim 5, wherein a first electrode sheet is fixed on a pipe wall of the first conveying-end pipe, and the first lead wire is connected with the first conveying pipe through the first electrode sheet.
7. The dual ion layer lubrication structure of claim 5, further comprising: at least one second conveying pipeline, wherein the second conveying pipeline is connected with the first conveying pipeline in an insulating way; the first conveying pipelines are also connected with a power supply through first lead wires which are arranged in a one-to-one correspondence mode.
8. The dual-ion-layer lubrication structure according to claim 7, wherein the first and second transport pipes are provided in plural numbers, and the plural first transport pipes and the plural second transport pipes are staggered.
9. An apparatus comprising a dual ion layer lubrication structure according to any one of claims 1 to 8, wherein the apparatus is a 3D printer or conveyor.
10. A lubrication method achieved by the double-ion-layer lubrication structure according to any one of claims 1 to 8, characterized in that the lubrication method comprises the steps of:
the power supply is started, and power is supplied to the conveying-end pipeline and the pushing piece through the conveying-end lead wire and the pushing lead wire respectively;
ions in the material move to the conveying end pipeline and the pushing piece respectively, a first ion layer is formed between the inner wall of the conveying end pipeline and the material, and a second ion layer is formed between the outer surface of the pushing piece and the material.
CN201810441365.6A 2018-05-10 2018-05-10 Double-ion-layer lubrication structure, equipment and lubrication method Active CN108533581B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810441365.6A CN108533581B (en) 2018-05-10 2018-05-10 Double-ion-layer lubrication structure, equipment and lubrication method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810441365.6A CN108533581B (en) 2018-05-10 2018-05-10 Double-ion-layer lubrication structure, equipment and lubrication method

Publications (2)

Publication Number Publication Date
CN108533581A CN108533581A (en) 2018-09-14
CN108533581B true CN108533581B (en) 2024-03-01

Family

ID=63477143

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810441365.6A Active CN108533581B (en) 2018-05-10 2018-05-10 Double-ion-layer lubrication structure, equipment and lubrication method

Country Status (1)

Country Link
CN (1) CN108533581B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86104548A (en) * 1985-07-19 1987-08-05 雷伊化学公司 Tubular article
JP2013133205A (en) * 2011-12-27 2013-07-08 Trinc:Kk Object conveying device
CN206751917U (en) * 2017-04-20 2017-12-15 岭南师范学院 A kind of plasma enhanced chemical vapor deposition unit for oil pipeline inwall

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86104548A (en) * 1985-07-19 1987-08-05 雷伊化学公司 Tubular article
JP2013133205A (en) * 2011-12-27 2013-07-08 Trinc:Kk Object conveying device
CN206751917U (en) * 2017-04-20 2017-12-15 岭南师范学院 A kind of plasma enhanced chemical vapor deposition unit for oil pipeline inwall

Also Published As

Publication number Publication date
CN108533581A (en) 2018-09-14

Similar Documents

Publication Publication Date Title
CN102536787A (en) Pumping mechanism and material pumping equipment comprising same
CN108533581B (en) Double-ion-layer lubrication structure, equipment and lubrication method
CN104284734A (en) Electrostatic application apparatus and method for applying liquid
CN108569565B (en) Ionic layer lubrication structure, extrusion head, equipment and lubrication method
CN108482979B (en) Double-ion-layer lubrication structure, equipment and lubrication method based on pipeline transportation
CN208182201U (en) A kind of sheath lubrication system, extruder head and equipment
CN205732047U (en) A kind of doctor blade device
CN101915237B (en) Concrete delivery pump lubricating system and concrete pumping equipment
CN200945522Y (en) Continuous casting machine roller-way bearing lubrication grease-feeding apparatus
CN208182067U (en) A kind of ion layer lubrication system and equipment based on pipeline transportation
CN201606641U (en) Concrete pumper and hydraulically driven centralized lubricating device thereof
CN203515602U (en) Pneumatic liquid accelerating agent adding device
CN202188513U (en) On-line dry oil concentrated lubricating system of incinerator
CN202769231U (en) Adjustable oil-air lubrication station
CN2932576Y (en) Piezoresistive wafer automatic aluminum-spraying machine
CN102330651A (en) Thick slurry pump and pumping system thereof
CN203641825U (en) Oil-gas lubrication system
CN205331777U (en) Electric motor oil system
CN111536405A (en) Beam-pumping unit lubricating arrangement
CN202479231U (en) Bore lubricating device for tube rolling
CN102937074A (en) Continuous material feeding system and control method and elevating platform fire truck thereof
CN203363611U (en) Lubrication system of drying portion of high-speed paper machine
CN218582859U (en) Automatic oiling lubricating device
CN201862495U (en) Improved structure of atomizing knife beam of electrostatic oiler
CN202746897U (en) Centralized grease injection device of pumping unit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant