CN204594625U - A kind of high precision mass property force transfering device - Google Patents
A kind of high precision mass property force transfering device Download PDFInfo
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- CN204594625U CN204594625U CN201520104354.0U CN201520104354U CN204594625U CN 204594625 U CN204594625 U CN 204594625U CN 201520104354 U CN201520104354 U CN 201520104354U CN 204594625 U CN204594625 U CN 204594625U
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- mounting base
- bearing mounting
- high precision
- axle
- transfering device
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Abstract
The utility model discloses a kind of high precision mass property force transfering device, comprise steel ball, pad and bearing mounting base, on described steel ball setting-up piece, described pad is arranged on described bearing mounting base by web member and rotor, in described bearing mounting base, thrust ball bearing is installed, described thrust ball bearing is provided with axle-steel silk back-up ring, described axle-steel silk back-up ring is positioned at described bearing mounting base, described bearing mounting base lower end is connected with adjusting screw(rod), described adjusting screw(rod) lower end is passed jack base and is fixed by round nut, electronic scale system is provided with below described jack base.The utility model ensure that barycenter test board barycenter measuring accuracy is better than the index of 0.3mm; The use of different size barycenter test board can be adapted to.
Description
Technical field
The utility model relates to a kind of sensor device, particularly, relates to a kind of high precision mass property force transfering device.
Background technology
Mass property Parameter analysis and detection are one of important contents of satellite Development and design.The accurate acquisition of satellite mass characteristic parameter is one of key element of Satellite Product precision examination.Need at present to develop a set of high precision barycenter test board being applicable to the filling of satellite platform base and using.
High precision barycenter test board adopts supported at three point principle, possesses the function of instrumented satellite product weight and barycenter, can meet factory building and base in institute and use.Test board forms primarily of following components: the compositions such as the support of pedestal, LOAD CELLS, sensor support, locating centre, lifting jack, hydraulic jack, guide holder, hydraulic control box, barycenter dish, computer measurement and control platform, leveling parallels.
Force transfering device is one directly affects high precision barycenter test board system accuracy.The centralized positioning mounting hole axis of high precision barycenter test board and the axial line distance of three LOAD CELLS must ensure that relative error is better than the index of 0.3mm at 0.01mm ability barycenter test board barycenter measuring accuracy.So a kind of high accuracy force transmission device must be developed to reach the precision index of barycenter test board barycenter test.
Do not find explanation or the report of same the utility model similar techniques at present, not yet collect similar data both at home and abroad yet.
Utility model content
The purpose of this utility model is to provide a kind of high-precision force transmission system, to solve the problem of barycenter test board barycenter measuring accuracy.
The utility model is achieved through the following technical solutions:
A kind of high precision mass property force transfering device, comprise steel ball, pad and bearing mounting base, on described steel ball setting-up piece, described pad is arranged on described bearing mounting base by web member and rotor, in described bearing mounting base, thrust ball bearing is installed, described thrust ball bearing is provided with axle-steel silk back-up ring, described axle-steel silk back-up ring is positioned at described bearing mounting base, described bearing mounting base lower end is connected with adjusting screw(rod), described adjusting screw(rod) lower end is passed jack base and is fixed by round nut, electronic scale system is provided with below described jack base, described electronic scale system both sides are provided with web member, described electronic scale system is made up of high-precision weighing sensor device and instrument, also comprise barycenter test board cone point, described barycenter test board cone point is by measurement axle, tapered locating shaft and web member are formed, described tapered locating shaft both sides are connected with measurement axle by described web member.
Preferably, described web member comprises hexagon head bolt-C level, single coil spring lock washer light type and plain washer-C level.
Preferably, described steel ball is the steel ball that surfaceness is high; The trade mark of described pad 2 is: 45CrNiMnVA/GB/T3077; Carrying out Quenching Treatment skin hardness after roughing is HRC58 ~ 61, grinding is carried out after Quenching Treatment, surface roughness requirements is better than 0.8 μm, and the depth of parallelism of two planes requires that being better than the situation lower plane that 1.6 μm of such guarantees are bearing 3200kg gravity is not out of shape; Described thrust ball bearing is thrust ball bearing 51000 type, and described thrust external diameter is
internal diameter
thickness 36 ㎜, dynamic load rating is 14kN; Rated static load is 205kN.
Preferably, described tapered locating shaft is made up of the measurement axle connected successively, installation main shaft, conical column.
Compared with prior art, the utility model has following beneficial effect: ensure that barycenter test board barycenter measuring accuracy is better than the index of 0.3mm; The use of different size barycenter test board can be adapted to.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of a kind of high precision mass property of the utility model force transfering device.
Fig. 2 is that in the utility model, sharp structural drawing bored by barycenter test board.
Fig. 3 is tapered locating shaft wiring layout in the utility model.
Fig. 4 is the assembling schematic diagram of the utility model high precision mass property force transfering device on barycenter test board.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.Following examples will contribute to those skilled in the art and understand the utility model further, but not limit the utility model in any form.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, some distortion and improvement can also be made.These all belong to protection domain of the present utility model.
As shown in figures 1-2 and 4, the utility model embodiment provides a kind of high precision mass property force transfering device, comprise steel ball 1, pad 2 and bearing mounting base 7, on described steel ball 1 setting-up piece 2, described pad 2 is arranged on described bearing mounting base 7 by web member 3 and rotor 6, in described bearing mounting base 7, thrust ball bearing 9 is installed, described thrust ball bearing 9 is provided with axle-steel silk back-up ring 8, described axle-steel silk back-up ring 8 is positioned at described bearing mounting base 7, described bearing mounting base 7 lower end is connected with adjusting screw(rod) 10, described adjusting screw(rod) 10 lower end is also fixed by round nut 11 through jack base 4, electronic scale system 5 is provided with below described jack base 4, described electronic scale system 5 both sides are provided with web member 3, described electronic scale system 5 is made up of high-precision weighing sensor and instrument, also comprise barycenter test board cone point, described barycenter test board cone point is by measurement axle 12, tapered locating shaft 13 and web member 3 are formed, described tapered locating shaft 13 both sides are connected with by described web member 3 and measure axle 12.
Described web member 3 comprises hexagon head bolt-C level, single coil spring lock washer light type and plain washer-C level.
Described steel ball 1 is the steel ball that surfaceness is high; The trade mark of described pad 2 is: 45CrNiMnVA/GB/T3077; Carrying out Quenching Treatment skin hardness after roughing is HRC58 ~ 61, grinding is carried out after Quenching Treatment, surface roughness requirements is better than 0.8 μm, and the depth of parallelism of two planes requires that being better than the situation lower plane that 1.6 μm of such guarantees are bearing 3200kg gravity is not out of shape; Described thrust ball bearing 9 is thrust ball bearing 51000 type, and described thrust external diameter is
internal diameter
thickness 36 ㎜, dynamic load rating is 14kN; Rated static load is 205kN.
As shown in Figure 3, described tapered locating shaft 13 is made up of the measurement axle 14 connected successively, installation main shaft 15, conical column 16.
Wherein, described hexagon head bolt-C level 3 selects the trade mark to be that the carbon structural steels of 20GB702-86 is made; Described single coil spring lock washer light type 4 selects the board with enough plasticity and toughness to be: 65Mn/GB/T3078-1994 spring steel wire is made; Described plain washer-C level 5 is also select the trade mark to be that the carbon structural steels of 20GB702-86 is made; The trade mark that described rotor 6 plow-steel structure corrosion resistivity is high is that 1Cr13Ni9Ti titaniferous stainless steel material is made; Described bearing mounting base 7 selects the high trade mark of plow-steel structure corrosion resistivity to be 1Cr13Ni9Ti titaniferous stainless steel; Described axle-steel silk back-up ring 8 is also select the board with enough plasticity and toughness to be: 65Mn/GB/T3078-1994 spring steel wire is made; Described round nut 11 is also select the trade mark to be that the carbon structural steels of 20GB702-86 is made; The material that described measurement axle 22 is selected is 40Cr, outer garden diameter
endoporus is
after Quenching Treatment, hardness reaches HR45 ~ 50.Inside and outside through grinding Hou Wai garden
and endoporus
right alignment be: 0.002 ㎜, surface roughness requirements is better than 0.8 μm, endoporus
error: the upper deviation is 0.008 ㎜, and lower deviation is 0 ㎜; The material that described installation main shaft 23 is selected is H62 copper, outer garden diameter
upper endoporus is
lower endoporus is
the right alignment of upper and lower endoporus is: 0.005 ㎜, upper and lower endoporus and Wai Yuan
concentricity be: 0.002 ㎜, surface roughness requirements is better than 0.8 μm.The upper endoporus of main shaft 23 is installed
with the outer garden diameter measuring axle 22
coordinate for stationary fit, the magnitude of interference of cooperation is 0.005 ㎜, can ensure the precision of installing like this.The material that described conical column 24 is selected also is 40Cr, outer garden diameter
endoporus is tapered, after Quenching Treatment, through grinding Hou Wai garden in outer garden and internal taper hole
with the right alignment of internal taper hole be: 0.0015 ㎜, surface roughness requirements is better than 0.4 μm, and hardness reaches HR55 ~ 60.Conical column 24 Wai Yuanwai garden
with the lower endoporus installing main shaft 23
cooperation be stationary fit, the magnitude of interference of cooperation is also 0.005 ㎜, can ensure like this install precision
Described jack base 4 adopts Birmasil to make.Because Birmasil is lightweight, machinability is good, not yielding, easily processes.
This concrete use and installation requirement implementing thrust bearing:
1, the connection of thrust bearing blowout patche and bearing mounting base 7 adopts interference fit, and the endoporus of blowout patche is basic hole system, basic deviation: upper deviation value is zero, and lower deviation is-0.015mm; Bearing mounting base 7 adopts the interference fit of m6 basic hole system; The connection of thrust bearing seat ring and adjusting screw(rod) 10 adopts transition fit, and the cylindrical of bearing mounting base 7 is basic shaft system, basic deviation: the upper deviation is+0.015mm, and lower deviation value is zero.
2, bearing mounting base 7 is better than 1.6 μm with the surfaceness of thrust bearing cooperation place.
Described adjusting screw(rod) 10 selects the trade mark of enough plasticity and toughness to be that the carbon constructional quality steel of 45CrGB702-86 is made.
Above specific embodiment of the utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (4)
1. a high precision mass property force transfering device, it is characterized in that, comprise steel ball, pad and bearing mounting base, on described steel ball setting-up piece, described pad is arranged on described bearing mounting base by web member and rotor, in described bearing mounting base, thrust ball bearing is installed, described thrust ball bearing is provided with axle-steel silk back-up ring, described axle-steel silk back-up ring is positioned at described bearing mounting base, described bearing mounting base lower end is connected with adjusting screw(rod), described adjusting screw(rod) lower end is passed jack base and is fixed by round nut, electronic scale system is provided with below described jack base, described electronic scale system is made up of high-precision weighing sensor and instrument, also comprise barycenter test board cone point, described barycenter test board cone point is by measurement axle, tapered locating shaft and web member are formed, described tapered locating shaft both sides are connected with measurement axle by described web member.
2. a kind of high precision mass property force transfering device according to claim 1, is characterized in that, described web member comprises hexagon head bolt-C level, single coil spring lock washer light type and plain washer-C level.
3. a kind of high precision mass property force transfering device according to claim 1, it is characterized in that, described steel ball is the steel ball that surfaceness is high; The trade mark of described pad is: 45CrNiMnVA/GB/T3077; Described thrust ball bearing is thrust ball bearing 51000 type, and described thrust external diameter is
internal diameter
thickness 36 ㎜, dynamic load rating is 14kN; Rated static load is 205kN.
4. a kind of high precision mass property force transfering device according to claim 1, is characterized in that, described tapered locating shaft is made up of the measurement axle connected successively, installation main shaft, conical column.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104354.0U CN204594625U (en) | 2015-02-12 | 2015-02-12 | A kind of high precision mass property force transfering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104354.0U CN204594625U (en) | 2015-02-12 | 2015-02-12 | A kind of high precision mass property force transfering device |
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| CN204594625U true CN204594625U (en) | 2015-08-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352662A (en) * | 2015-11-23 | 2016-02-24 | 上海卫星装备研究所 | Novel installation adjustment device for spaceflight equipment |
| CN105466635A (en) * | 2015-11-23 | 2016-04-06 | 上海卫星装备研究所 | Novel mass and center of mass test system used for spacecraft |
| CN106248299A (en) * | 2016-07-11 | 2016-12-21 | 上海卫星装备研究所 | A kind of based on multi-dimensional force barycenter test system |
| CN114323437A (en) * | 2021-12-31 | 2022-04-12 | 哈尔滨工业大学 | Floating fulcrum device |
| CN114777998A (en) * | 2022-06-20 | 2022-07-22 | 东方空间技术(山东)有限公司 | Centroid measuring device and centroid measuring system |
-
2015
- 2015-02-12 CN CN201520104354.0U patent/CN204594625U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352662A (en) * | 2015-11-23 | 2016-02-24 | 上海卫星装备研究所 | Novel installation adjustment device for spaceflight equipment |
| CN105466635A (en) * | 2015-11-23 | 2016-04-06 | 上海卫星装备研究所 | Novel mass and center of mass test system used for spacecraft |
| CN105466635B (en) * | 2015-11-23 | 2018-04-17 | 上海卫星装备研究所 | Quality center of mass applied to spacecraft tests system |
| CN106248299A (en) * | 2016-07-11 | 2016-12-21 | 上海卫星装备研究所 | A kind of based on multi-dimensional force barycenter test system |
| CN106248299B (en) * | 2016-07-11 | 2019-01-18 | 上海卫星装备研究所 | One kind being based on multi-dimensional force mass center test macro |
| CN114323437A (en) * | 2021-12-31 | 2022-04-12 | 哈尔滨工业大学 | Floating fulcrum device |
| CN114777998A (en) * | 2022-06-20 | 2022-07-22 | 东方空间技术(山东)有限公司 | Centroid measuring device and centroid measuring system |
| CN114777998B (en) * | 2022-06-20 | 2022-09-02 | 东方空间技术(山东)有限公司 | Centroid measuring device and centroid measuring system |
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| GR01 | Patent grant |