CN108982295B - Device capable of simultaneously detecting harmful particles in multiple lubricating grease samples - Google Patents
Device capable of simultaneously detecting harmful particles in multiple lubricating grease samples Download PDFInfo
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- CN108982295B CN108982295B CN201811005365.8A CN201811005365A CN108982295B CN 108982295 B CN108982295 B CN 108982295B CN 201811005365 A CN201811005365 A CN 201811005365A CN 108982295 B CN108982295 B CN 108982295B
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- 239000004519 grease Substances 0.000 title claims abstract description 37
- 239000002245 particle Substances 0.000 title claims abstract description 26
- 230000001050 lubricating effect Effects 0.000 title abstract description 17
- 230000003068 static effect Effects 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
- G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
- G01N11/08—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
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- Physics & Mathematics (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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Abstract
A device capable of detecting harmful particles in a plurality of lubricating grease samples simultaneously comprises a base, upright columns, a movable beam, a static beam, a power mechanism, a gear seat, an upper plate and a lower plate, wherein at least two upright columns are arranged on the base; the power mechanism is arranged on the static beam and connected with the dynamic beam; the base is provided with a plurality of gear seats, adjacent gear seats are mutually meshed, the lower plate is placed on the gear seats, the lower surface of the movable beam is provided with a plurality of upper plates, and the upper plates and the gear seats are opposite to each other one by one. The invention has the advantages of easy and labor-saving operation, capability of detecting a plurality of lubricating grease samples at one time, time saving, efficiency improvement and the like. The invention belongs to the technical field of lubricating grease detection.
Description
Technical Field
The invention belongs to the technical field of lubricating grease detection, and particularly relates to a device capable of simultaneously detecting harmful particles in a plurality of lubricating grease samples.
Background
Since the solid hard particles contained in the grease scratch the surface of the lubricated parts and reduce the service life thereof, it is necessary to detect whether harmful hard particles are contained or not and the scratch grade of harmful particles in the grease during production, during acceptance, before use, and during monitoring of equipment failure. According to the identification method described in the identification of harmful particles in grease (SH/T-0322-1992), a quantity of grease is placed between two plastic plates under pressure and rotated about 30 ° relative to each other. After the rotation, the scratch grade of the harmful particles in the grease is judged according to the number of the scratches on the plastic plate caused by the hard particles contained in the grease. The method in SH/T-0322-1992 requires a pressure of about 1.37MPa (14kgf/cm2), i.e.up to about 87.5kgf, to be applied between two plastic plates (25 mm. times.25 mm. times.10 mm in size). The pressurization mode of the device for realizing the measurement of the harmful particles in the lubricating grease, which is disclosed in SH/T-0322-1992, is realized by manually rotating a handle and pushing a spring through a thread pair, so that the actual operation process is very laborious. In addition, the detection device given by the method in SH/T-0322-1992 can only detect one grease sample at a time, which is too inefficient for grease manufacturing companies, quality inspection monitoring departments, and large-scale service units.
Disclosure of Invention
In view of the above, the present invention provides a time and labor saving device capable of simultaneously detecting harmful particles in a plurality of grease samples, and the device also has the advantages of simple structure, simple operation, high efficiency, etc.
A device capable of detecting harmful particles in a plurality of lubricating grease samples simultaneously comprises a base, upright columns, a movable beam, a static beam, a power mechanism, a gear seat, an upper plate and a lower plate, wherein at least two upright columns are arranged on the base; the power mechanism is arranged on the static beam and connected with the dynamic beam; the base is provided with a plurality of gear seats, adjacent gear seats are mutually meshed, the lower plate is placed on the gear seats, the lower surface of the movable beam is provided with a plurality of upper plates, and the upper plates and the gear seats are opposite to each other one by one. By adopting the structure, the power mechanism drives the movable beam, and the movable beam linearly moves along the axis direction of the upright post, so that the pressure intensity required by the test is achieved between the upper plate and the lower plate, and the relative angles of the upper plate and the lower plate can be adjusted by pushing one gear seat, thereby being easy and labor-saving; set up a plurality of gear seats on the base, can set up multiunit upper plate, hypoplastron, consequently can once detect a plurality of lubricating grease samples, save time raises the efficiency.
Furthermore, the power mechanism is a hydraulic cylinder, the hydraulic cylinder is vertically arranged, a flange end cover at the front end of the hydraulic cylinder is fixedly connected with the upper surface of the static beam, and a piston rod of the hydraulic cylinder penetrates through the static beam and is fixedly connected with the movable beam. By adopting the structure, the power transmission of the hydraulic cylinder is stable, the movable beam can be stably driven to move, and the smooth and stable completion of the detection process is ensured.
Furthermore, two oil inlet and outlet ports of the hydraulic cylinder are connected with the hydraulic control circuit, one oil inlet and outlet port is a high-pressure end, and the other oil inlet and outlet port is a low-pressure end; a pressure gauge is arranged on an oil way connected with the oil inlet and the oil outlet of the high-pressure end; and the hydraulic control circuit is also provided with an overflow valve for limiting the maximum thrust of the piston rod. By adopting the structure, the pressure between the upper plate and the lower plate can be accurately controlled in the detection process through the pressure gauge, the overflow valve can limit the thrust value, and the damage to equipment caused by overlarge thrust value is avoided.
Furthermore, the hydraulic cylinder adopts a light pull rod hydraulic cylinder, a front end flange of the hydraulic cylinder is connected with the upper surface of the static beam through a bolt, the hydraulic cylinder is fastened through a nut, and a spring washer is anti-loose. By adopting the structure, the pull rod hydraulic cylinder is simple and labor-saving to configure and install.
Furthermore, the base, the movable beam and the static beam are all in a cuboid shape, the two upright posts are symmetrically fixed at two ends of the base, two ends of the movable beam are sleeved on the upright posts through cylindrical holes, and two ends of the static beam are fixed at the top ends of the upright posts through hinged holes and nuts. The movable beam and the upright post are in clearance fit. By adopting the structure, the material selection is simple, the structure is simple, and the processing and the installation are convenient.
Furthermore, the plumb central lines of the base, the movable beam and the static beam are parallel to each other and are parallel to the central axis of the upright post. By adopting the structure, the movable beam can stably and smoothly move along the axial direction of the upright post.
Furthermore, a plurality of bearing holes which are uniformly distributed are formed in the base, the bearing holes are arranged in a straight line, and the gear seat is installed in the bearing holes through the centripetal thrust bearing. By adopting the structure, the gear seat is convenient to mount, the adjacent gear seats are convenient to mesh and transmit, and meanwhile, the upper end surface of the centripetal thrust bearing can bear the axial acting force transmitted to the gear seat by the lower plate during testing.
Furthermore, the gear rack comprises a handle, the handle is fixedly connected with the gear rack through screws, the handle is positioned in the horizontal direction, and the central line of the handle is vertically intersected with the central axis of the gear rack. By adopting the structure, when the detection is carried out, a user can easily rotate the gear seat through the handle, so that the relative angle between the upper plate and the lower plate can be easily adjusted, and the time and the labor are saved.
Furthermore, a square groove for placing the lower plate is formed in the gear seat; the lower surface of the movable beam is provided with square grooves which correspond to the square grooves on the gear seat one by one; the depth of the square groove is 8mm, and the side length of the square groove is 25 multiplied by 25 mm. By adopting the structure, the upper plate and the lower plate can be conveniently installed.
Furthermore, the upper plate and the lower plate are both made of plastic plates.
The invention has the beneficial effects that: the hydraulic cylinder is used as a power mechanism to drive the movable beam to do linear motion along the axis of the upright post, so that the pressure between the upper plate and the lower plate is increased, and the hydraulic mechanism is labor-saving and easy compared with the prior art; meanwhile, the base is provided with the plurality of gear seats, and the gear seats and the movable beam can be provided with the plurality of groups of upper plates and lower plates, so that a plurality of lubricating grease samples can be detected at one time, the time is saved, and the efficiency is improved; the handle is connected with the gear seat, the handle is rotated and the gear seat is meshed with each other for transmission, and the handle is pulled once to change the relative angles between the upper plate and the lower plate of a plurality of groups, so that the test is completed, and the operation is easy and the efficiency is high; an overflow valve is arranged on a loop connected with the hydraulic cylinder, so that the maximum thrust of the piston rod can be limited through the overflow valve, and the damage to equipment caused by overlarge thrust is avoided; still set up the manometer on the return circuit that the business turn over hydraulic fluid port with the high-pressure side is connected, convenience of customers reads the pressure value through the manometer to light control pressure in experimentation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view in the direction AA in fig. 1.
The hydraulic control device comprises a base 1, a stand column 2, a static beam 3, a movable beam 4, a hydraulic cylinder 5, a gear seat 6, a handle 7, a radial thrust bearing 8, a high-pressure end oil inlet and outlet 9, a low-pressure end oil inlet and outlet 10 and a square groove 11.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A device capable of detecting harmful particles in a plurality of lubricating grease samples simultaneously comprises a base, a stand column, a movable beam, a static beam, a hydraulic cylinder, a gear seat, a handle, a centripetal thrust bearing, an upper plate and a lower plate. Two stand symmetries set up the both ends at the base, movable beam both ends slidingtype suit is on two stands, the movable beam can be along the axial direction motion of stand, the top at two stands is fixed to quiet roof beam, the pneumatic cylinder is installed in quiet roof beam top, the piston rod lower extreme of pneumatic cylinder stretches out from quiet roof beam, and piston rod lower extreme and movable beam threaded connection, the lower surface of movable beam is the straight line and evenly sets up 4 upper plates, evenly set up 4 pinion seats on the upper surface of base, every pinion seat is just right with an upper plate, the pinion seat passes through radial thrust bearing and installs on the base, through the gear engagement transmission between adjacent pinion seats, handle and one of them pinion seat fixed connection. The handle is pulled to drive the gear seat to rotate, so that the lower plate is driven to rotate.
The base is cuboid, two ends of the base are provided with symmetrical hinging holes, and the diameter of each hinging hole is the same as the outer diameter of each upright post; four gear seats are uniformly arranged between the two reaming holes and are positioned on the connecting line of the centers of the two upright posts, and the four gear seats are arranged in a straight line. The bottom end of the upright post is fixedly connected with the base through a hinging hole on the base. The upper surface of every gear seat is seted up square groove, and the specification in square groove is the same with the specification in square groove of the lower surface of walking beam, and square groove is used for installing the hypoplastron. The gear seat is installed on the base through the centripetal thrust bearing, and the axial acting force that the lower board transmitted to the gear seat is born to the up end of centripetal thrust bearing when testing. Every two adjacent gear seats are mutually meshed. In this embodiment, the handle and the first gear seat on the left side are fixedly connected through a screw, the handle is in the horizontal direction, and the central line of the handle is vertically intersected with the central axis of the gear seat.
The movable beam is cuboid, and a pair of cylindrical holes are symmetrically formed in the two ends of the movable beam; four square grooves are uniformly arranged on the lower surface of the movable beam, and the positions of the square grooves are opposite to the square grooves on the gear seat one by one. The movable beam is sleeved on the two upright posts through cylindrical holes at two ends, the upright posts are in clearance fit with the cylindrical holes, and the movable beam can linearly slide along the direction of the upright posts but cannot rotate around the center line of the movable beam. The depth of the square groove is 8mm, and the side length of the square groove is 25 multiplied by 25 mm. An upper plate is arranged in the square groove on the lower surface of the movable beam.
The hydraulic cylinder adopts a light pull rod hydraulic cylinder which is simple in structure, high in part generalization degree and convenient to install. The hydraulic cylinder is vertically placed, a front end flange of the hydraulic cylinder is connected with the upper surface of the static beam through a bolt, the hydraulic cylinder is fastened through a nut, and a spring washer is anti-loose. The upright post and the static beam are connected by a hinged hole, the nut is fastened, and the spring washer is anti-loose. The lower end of a piston rod of the hydraulic cylinder is in threaded connection with the upper surface of the movable beam, the nut is screwed down, and the spring washer is anti-loose. And the hydraulic cylinder plumb line, the static beam plumb line, the moving beam plumb line and the base plumb line are collinear and are parallel to the central axis of the upright post.
Two oil inlets and outlets of the hydraulic cylinder are connected with a hydraulic control loop, one oil inlet and outlet is a high-pressure end, and the other oil inlet and outlet is a low-pressure end. The hydraulic control circuit used by the device is a common hydraulic control circuit in engineering, and is easy to build by related field personnel, so that the hydraulic control circuit is not described in detail. The overflow valve in the hydraulic control loop can limit the maximum thrust of the piston rod of the hydraulic cylinder to the pressure specified by the standard SH/T-0322 and 1992, and the actual extrapolation pressure of the piston rod of the hydraulic cylinder can be known from a pressure gauge on an oil path connected with an oil inlet and an oil outlet of the high-pressure end.
In the present invention, the upper plate and the lower plate are the test pieces required by SH/T-0322-.
When the detection device is used for detecting lubricating grease, the upper plate and the lower plate are respectively placed into the square grooves of the movable beam and the gear seat, and a certain amount of lubricating grease to be detected is placed on the upper surfaces of the upper plate and the lower plate according to the requirements of the identification method of harmful particles of lubricating grease (SH/T-0322-; then the handle is rotated to align and align the side edges of the upper plate and the lower plate; operating the hydraulic cylinder, and enabling the piston rod to descend, wherein the descending of the piston rod needs to enable the contact pressure between the surfaces of the upper plate and the lower plate to reach 87.5 kgf; at the moment, the handle is pulled again to enable the lower plate to rotate 30 degrees relative to the upper plate, at the moment, due to the meshing transmission among the gear seats, all the gear seats rotate, and therefore the lower plates on the gear seats rotate relative to the upper plate which is just opposite; the piston rod of the hydraulic cylinder is controlled to rise, the upper plate and the lower plate are taken out, and the scratch grade is determined according to the specification of the identification method of harmful particles in lubricating grease (SH/T-0322-.
In the present embodiment, four gear seats are provided on the base, so that a maximum of four grease samples can be detected at a time. According to actual demand and use scene, can select the base, walking beam and the quiet roof beam of suitable specification to set up the gear seat of suitable quantity on the base, thereby satisfy the requirement of a plurality of lubricating grease samples of once testing. The change of the number of the square grooves on the lower surfaces of the gear seat and the movable beam can not change the essence of the invention and still belong to the protection scope of the invention.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. An apparatus for simultaneously detecting harmful particles in a plurality of grease samples, comprising: the gear transmission mechanism comprises a base, stand columns, a movable beam, a static beam, a power mechanism, a gear seat, an upper plate and a lower plate, wherein at least two stand columns are arranged on the base; the power mechanism is arranged on the static beam and connected with the dynamic beam; the base is provided with a plurality of gear seats, adjacent gear seats are mutually meshed, the lower plate is placed on the gear seats, the lower surface of the movable beam is provided with a plurality of upper plates, and the upper plates and the gear seats are opposite to each other one by one.
2. The apparatus of claim 1, wherein the apparatus is capable of simultaneously detecting harmful particles in a plurality of grease samples, and wherein: the power mechanism is a hydraulic cylinder, the hydraulic cylinder is vertically arranged, a flange end cover at the front end of the hydraulic cylinder is fixedly connected with the upper surface of the static beam, and a piston rod of the hydraulic cylinder penetrates through the static beam and is fixedly connected with the movable beam.
3. The apparatus of claim 2, wherein the apparatus is capable of simultaneously detecting harmful particles in a plurality of grease samples, and wherein: two oil inlet and outlet ports of the hydraulic cylinder are connected with a hydraulic control loop, one oil inlet and outlet port is a high-pressure end, and the other oil inlet and outlet port is a low-pressure end; a pressure gauge is arranged on an oil way connected with the oil inlet and the oil outlet of the high-pressure end; and the hydraulic control circuit is also provided with an overflow valve for limiting the maximum thrust of the piston rod.
4. The apparatus according to claim 2 or 3, wherein the apparatus is capable of simultaneously detecting harmful particles in a plurality of grease samples, and comprises: the hydraulic cylinder adopts a light pull rod hydraulic cylinder, a front end flange of the hydraulic cylinder is connected with the upper surface of the static beam through a bolt, the hydraulic cylinder is fastened through a nut, and a spring washer is anti-loose.
5. The apparatus of claim 1, wherein the apparatus is capable of simultaneously detecting harmful particles in a plurality of grease samples, and wherein: the base, the movable beam and the static beam are all in a cuboid shape, the two stand columns are symmetrically fixed at two ends of the base, two ends of the movable beam are sleeved on the stand columns through cylindrical holes, and two ends of the static beam are fixed at the top ends of the stand columns through hinged holes and nuts.
6. The apparatus of claim 5, wherein the apparatus is capable of simultaneously detecting harmful particles in a plurality of grease samples, and wherein: the plumb central lines of the base, the movable beam and the static beam are parallel to each other and are parallel to the central axis of the upright post.
7. The apparatus of claim 5, wherein the apparatus is capable of simultaneously detecting harmful particles in a plurality of grease samples, and wherein: a plurality of bearing holes which are uniformly distributed are formed in the base, the bearing holes are arranged in a straight line, and the gear seat is installed in the bearing holes through the radial thrust bearing.
8. The apparatus of claim 7, wherein the apparatus is capable of simultaneously detecting harmful particles in a plurality of grease samples, and wherein: the handle is fixedly connected with the gear seat through a screw, the handle is in the horizontal direction, and the central line of the handle is vertically intersected with the central axis of the gear seat.
9. The apparatus of claim 7, wherein the apparatus is capable of simultaneously detecting harmful particles in a plurality of grease samples, and wherein: a square groove for placing the lower plate is formed in the gear seat; the lower surface of the movable beam is provided with square grooves which correspond to the square grooves on the gear seat one by one; the depth of the square groove is 8mm, and the side length of the square groove is 25 multiplied by 25 mm.
10. The apparatus of claim 1, wherein the apparatus is capable of simultaneously detecting harmful particles in a plurality of grease samples, and wherein: the upper plate and the lower plate are both made of plastic plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811005365.8A CN108982295B (en) | 2018-08-30 | 2018-08-30 | Device capable of simultaneously detecting harmful particles in multiple lubricating grease samples |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811005365.8A CN108982295B (en) | 2018-08-30 | 2018-08-30 | Device capable of simultaneously detecting harmful particles in multiple lubricating grease samples |
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| Publication Number | Publication Date |
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| CN108982295A CN108982295A (en) | 2018-12-11 |
| CN108982295B true CN108982295B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811005365.8A Expired - Fee Related CN108982295B (en) | 2018-08-30 | 2018-08-30 | Device capable of simultaneously detecting harmful particles in multiple lubricating grease samples |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2183347A (en) * | 1985-11-25 | 1987-06-03 | Plint & Partners Ltd | Lubricant testing apparatus |
| CN102944512A (en) * | 2012-11-03 | 2013-02-27 | 中国矿业大学 | Test machine and test method for real-time and dynamic observation of end surface torsion friction and abrasion of friction interface |
| CN103308447A (en) * | 2013-05-31 | 2013-09-18 | 西安交通大学 | Contacting and rubbing device of nano-particle air film static-pressure thrust bearing |
| CN205015336U (en) * | 2015-09-21 | 2016-02-03 | 上海金艺检测技术有限公司 | Lubricated performance testing device of lubricating grease high temperature |
-
2018
- 2018-08-30 CN CN201811005365.8A patent/CN108982295B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2183347A (en) * | 1985-11-25 | 1987-06-03 | Plint & Partners Ltd | Lubricant testing apparatus |
| CN102944512A (en) * | 2012-11-03 | 2013-02-27 | 中国矿业大学 | Test machine and test method for real-time and dynamic observation of end surface torsion friction and abrasion of friction interface |
| CN103308447A (en) * | 2013-05-31 | 2013-09-18 | 西安交通大学 | Contacting and rubbing device of nano-particle air film static-pressure thrust bearing |
| CN205015336U (en) * | 2015-09-21 | 2016-02-03 | 上海金艺检测技术有限公司 | Lubricated performance testing device of lubricating grease high temperature |
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| CN108982295A (en) | 2018-12-11 |
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