CN207487622U - Force application mechanism - Google Patents
Force application mechanism Download PDFInfo
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- CN207487622U CN207487622U CN201721131283.9U CN201721131283U CN207487622U CN 207487622 U CN207487622 U CN 207487622U CN 201721131283 U CN201721131283 U CN 201721131283U CN 207487622 U CN207487622 U CN 207487622U
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- mass block
- force application
- hole
- end cover
- peripheral surface
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Abstract
The utility model provides a kind of force application mechanism that can ensure force accuracy.The force application mechanism has：Institutional framework；Mass block keeping body (9) is fixed on the institutional framework, and with the axial mass block receiving hole (9a) consistent with vertical direction；Mass block (6) can be set in the mass block receiving hole (9a), have gap between the inner peripheral surface of peripheral surface and the mass block receiving hole (9a) up or down；Pressure head (2), it is fixed on the mass block (6), for giving the weight transfer of the mass block (6) by force application object, air flue is equipped on the mass block keeping body (9), the air flue has the entrance being connect with gas supply mechanism and the outlet being opened on the inner peripheral surface of the mass block receiving hole (9a), and the outlet is arranged on the position of the peripheral surface in face of the mass block (6).
Description
Technical field
The utility model is related to a kind of such as to the force application mechanism for being applied precognition mass force by force application object spring.
Background technology
Such as in the measurement having, need to apply certain mass force to testee, simulate operating mode, then survey its related ruler
Very little, the constant stabilization of mass force plays the role of measurement vital.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of force application mechanisms that can ensure force accuracy.
In order to achieve the above objectives, the utility model adopts the following technical solution.In the description of these following technical solutions,
What appended reference numeral represented after relevant art feature be in specific embodiment with the corresponding structure of the technical characteristic, and
Without the meaning being equal with the technical characteristic, the restriction to the range of technical solution is not formed.
A kind of 1. force application mechanism of technical solution, has：Institutional framework；Mass block keeping body (9), is fixed on the machine
Structure frame, and with the axial mass block receiving hole (9a) consistent with vertical direction；Mass block (6), can set up or down
In the mass block receiving hole (9a), there is gap between the inner peripheral surface of peripheral surface and the mass block receiving hole (9a)；Pressure
Head (2), is fixed on the mass block (6), for giving the weight transfer of the mass block (6) by force application object, feature
It is, air flue is equipped on the mass block keeping body (9), and the air flue has the entrance being connect with gas supply mechanism and opens up
Outlet on the inner peripheral surface of the mass block receiving hole (9a), and the outlet is arranged in face of the outer of the mass block (6)
The position of circumferential surface.
Using the force application mechanism of the utility model with constituted above, can by gas supply mechanism by air flue to mass block
Gas is blown between the inner peripheral surface of keeping body (9) and the peripheral surface of mass block (6), (inhibition) mass block (6) is prevented by the gas
It is tangled or is clung etc. by the inner peripheral surface of mass block keeping body (9) and influence the essence to the force by force application object of such as spring etc.
Exactness.
2. force application mechanism according to technical solution 1 of technical solution, which is characterized in that the institute equipped with air flue described in many places
Outlet is stated, the outlet of many places is uniformly arranged along the circumferential of the mass block receiving hole (9a).
3. force application mechanism according to technical solution 1 of technical solution, which is characterized in that the mass block keeping body (9)
It is cylindrical in shape, periphery is cased with shroud (8), and being made of radial through-hole of connecting with inlet suction port (17) is equipped on shroud (8)
Venthole, the entrance of the air flue are connect by the venthole, the inlet suction port (17) with the gas supply mechanism.
Force application mechanism of the technical solution 4. according to any one of technical solution 1~3, which is characterized in that in the matter
Upper end cover (10) is equipped at the upper end of gauge block keeping body (9), the upper end cover (10) has through-hole (10a), the mass block (6)
The sensor attachment portion being connect with the through-hole (10a) across the upper end cover (10) with displacement sensor (16)
Have what is circulated for gas between the through-hole (10a) of (6a), the sensor attachment portion (6a) and the upper end cover (10)
Radial clearance.
By the way that displacement sensor (16) is set to detect the displacement of mass block (6), the force application mechanism of the utility model can be simultaneous
Has the function of measuring mechanism.
Force application mechanism of the technical solution 5. according to technical solution 4, which is characterized in that the sensor attachment portion (6a)
On can be set with weight (11), in the state of suit weight (11), the weight (11) and the upper end cover (10)
The through-hole (10a) between there is the radial clearance that circulates for gas.
Using constituted above, the through-hole (10a) of upper end cover (10) is for accommodating sensor attachment portion and/or add
Pouring weight, using the through-hole (10a) come outlet, it is not necessary to separately set out gas port, simplify structure, reduce cost.
Force application mechanism of the technical solution 6. according to any one of technical solution 1~3, which is characterized in that in the matter
The lower face of gauge block (6) is equipped with pressure head fixed plate (4), and the pressure head (2) is removably installed in the pressure head fixed plate (4)
Lower face, at the lower end of the mass block keeping body (9) be equipped with bottom end cover (3), the bottom end cover (3) have through-hole
(3a), the pressure head are extended downwardly via the through-hole (3a) of the bottom end cover (3).
Description of the drawings
Fig. 1 is the oblique view seen from oblique upper of the force measuring mechanism involved in specific embodiment；
Fig. 2 is the oblique view seen from obliquely downward of the force measuring mechanism；
Fig. 3 is the vertical view of the force measuring mechanism 100；
Fig. 4 is the partial sectional view of the force measuring mechanism 100.
Reference sign
1st, guide sleeve；2nd, pressure head；3rd, bottom end cover；4th, pressure head fixed plate；5th, lower plate；6th, mass block；6a, sensor connection
Portion；7th, shield；8th, shroud；9th, middle spacer；9a, pilot hole；10th, upper end cover；11st, weight；12nd, sensor installing plate；13rd, it carries on the back
Plate；14th, shield mounting blocks；15th, upper plate；16th, sensor；17th, inlet suction port.
Specific embodiment
Specific embodiment of the present utility model is illustrated with reference to the accompanying drawings.Fig. 1 is involved in present embodiment
Force measuring mechanism 100 (an example of force application mechanism) the oblique view seen from oblique upper.Fig. 2 is the force measuring mechanism
100 oblique view seen from obliquely downward.Fig. 3 is the vertical view of the force measuring mechanism 100.Wherein, Fig. 1~Fig. 3 is omits
The state of shield.Fig. 4 is the sectional view of the line A-A along Fig. 3.
As shown in figures 1-4, which has the upper plate 15 being oppositely arranged and lower plate 5, in upper plate 15 and lower plate 5
Rear portion between be connected to backboard 13, a pair of left and right pillar 20 is equipped between the forepart of upper plate 15 and lower plate 5, in backboard 13
The left and right sides be respectively provided with a pair of shields mounting blocks 14 along upper and lower directions, by shield mounting blocks 14 be installed with shield 7 (figure
4) front side and the left and right sides substantially are covered in into letter U shape when, shield 7 is overlooked.Upper plate 15, lower plate 5, backboard 13, pillar 20,
These components of shield 7 constitute the institutional framework of force application mechanism 100.
As shown in figure 4, being equipped with mounting hole 5a in lower plate 5, shroud 8 is installed in mounting hole 5a, shroud 8 is whole
On be substantially cylindrical in shape, lower end extend out to the outer side-lower of lower plate 5, and the lower end be formed as being relatively large in diameter it is flange shape
Portion, the upper surface of the flange are abutted with the lower surface of lower plate 5.
Upper end cover 10 and bottom end cover 3 are separately installed in the upper and lower ends of shroud 8, in the centre bore of shroud 8, in upper end
Middle spacer 9 is fixed between lid 10 and bottom end cover 3, the axial direction of middle spacer 9 is consistent with vertical direction (upper and lower directions).In middle spacer
Mass block 6 is equipped in 9 centre bore, the radial dimension of mass block 6 is slightly smaller than the centre bore of middle spacer 9, and peripheral surface is in
There is small gap so that the mass block 6 can be along the centre bore of middle spacer 9 between the inner peripheral surface of the centre bore 9a of spacer 9
The axial direction of 9a (mass block receiving hole) moves up and down.The inner peripheral surface of the peripheral surface of mass block 6 and the centre bore 9a of middle spacer 9
Between gap according to circumstances can freely set, for example, setting it is too much if, mass block 6 when by external force easily
It tilts, generation position offset adversely affects measurement result；And be set to it is too small if, mass block 6 holds when moving up and down
It is vulnerable to the resistance for coming from centre bore 9a inner peripheral surfaces, influences measurement result.
The upper end of mass block 6 has the sensor attachment portion 6a of path, and sensor attachment portion 6a is via on upper end cover 10
Through-hole 10a extend out to the top of upper end cover 10, the gauge head (being not specifically illustrated) with displacement sensor 16 (also referred to as sensor)
Connection.Displacement sensor 16 (main part) is mounted on by sensor installing plate 12 on backboard 13.In mass block 6 along interval
The centre hole axis of set 9 is capable of detecting when the displacement of mass block 6 as displacement sensor 16 to when moving up and down.
Weight 11 is cased on the sensor attachment portion 6a of mass block 6, weight 11 is optional component, for adjusting
The size that mass block 6 exerts a force.
In addition, as shown in figure 4, be equipped with pressure head fixed plate 4 by screw on the lower face of mass block 6, consolidate in pressure head
Replaceable pressure head 2 is installed by screw, pressure head 2 is extended downwardly via the stepped throughhole 3a of bottom end cover 3 on fixed board 4.
Guide sleeve 1 is fixed with by screw on the lower face of bottom end cover 3.Testee 18 can enter in guide sleeve 1.
In the present embodiment, object (measurand substantially, force object be spring) of the testee 18 with spring 19, should
The upper surface of the main part of testee 18 abuts (lower face of bottom end cover 3 forms positioning surface) with the lower face of bottom end cover 3,
Under this state, it is exerted a force by the gravity of mass block 6 by pressure head 2 to spring 19, deforms spring 19, displacement sensor 16 passes through matter
Gauge block 6 detects the deformation extent of spring 19.
Shroud 8, upper end cover 10, bottom end cover 3, middle spacer 9, mass block 6, pressure head 2 etc. constitute applying in the utility model
Force mechanisms body part, shroud 8, upper end cover 10, bottom end cover 3 form force application mechanism body part housing, and middle spacer 9 forms mass block and protects
Body is held, the centre bore 9a of middle spacer 9, which is formed, accommodates 6 mass block receiving hole of mass block.
In addition, as shown in Fig. 1,2,4, the ventilation being made of radial through-hole is equipped on the peripheral surface of the lower end of shroud 8
Hole (not shown) is equipped with inlet suction port 17 on the venthole, and inlet suction port 17 is connect with gas supply mechanism (not shown).
Air flue is equipped on middle spacer 9, the entrance of air flue is opened in the peripheral surface of middle spacer 9, with the venthole on shroud 8
Connection, the outlet of air flue is opened on the inner peripheral surface of middle spacer 9, and be arranged on the position of the peripheral surface in face of mass block 6.By
This, can be by gas supply mechanism by being blown into gas between the inner peripheral surface of air flue centering spacer 9 and the peripheral surface of mass block 6, by this
The middle spacer 9 that gas prevents (inhibition) mass block 6 to be kept the mass block 6 is tangled or is clung etc. and influences the force to spring 19
Accuracy, that is, mass block 6 reaches constant precognition mass force and is depressed on spring (by force application object) only by gravity
Effect, and then can ensure measurement accuracy.
In the present embodiment, between the through-hole 10a of sensor attachment portion 6a and upper end cover 10 there is radial clearance (preferably to pacify
Filling also has radial clearance between 11 postemphasis block 11 of weight and through-hole 10a), the gas between spacer 9 and mass block 6
It can be discharged from the upside of mass block 6, via the through-hole 10a of upper end cover 10.In addition, in the present embodiment, preferably along interval
The circumferential direction of the inner peripheral surface of set 9 is uniformly placed with multiple air passage outlets.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
For example, in the above-described embodiment, using the state after the detection spring stress that exerts a force to spring (by force application object) as
The force application mechanism of the utility model is illustrated in example, however, whether the improvement of the utility model is with applying to spring
It can also be applied to the force to the object other than spring without necessarily relationship, i.e. the utility model in force.
In addition, from the point of view of the accuracy this purpose that exerts a force, the setting of sensor is not required in that, can make sensor from
Force application mechanism 100 is separated and is independently arranged, i.e., force application mechanism 100 can not include the function (detection function) of sensor.
Furthermore the entrance of air flue is not limited on the peripheral surface for being opened in middle spacer 9, such as can also be opened in end face
On.
In addition, in the above-described embodiment, pressure head 2 is fixed on the lower face of mass block 6, however, from can be by mass block 6
Weight transfer to testee from the perspective of, pressure head 2 and 6 phase of mass block are fixed, it is not necessary to are fixed under mass block 6
End face.
Claims (7)
1. a kind of force application mechanism, has：
Institutional framework；
Mass block keeping body (9) is fixed on the institutional framework, and is accommodated with the axial mass block consistent with vertical direction
Hole；
Mass block (6) can be set in the mass block receiving hole up or down, peripheral surface and the mass block receiving hole
Inner peripheral surface between have gap；
Pressure head (2) is fixed on the mass block (6), for giving the weight transfer of the mass block (6) by force application object,
It is characterized in that,
Air flue is equipped on the mass block keeping body (9), the air flue has the entrance being connect with gas supply mechanism and opens up
Outlet on the inner peripheral surface of the mass block receiving hole, and the outlet is arranged on the peripheral surface in face of the mass block (6)
Position.
2. force application mechanism according to claim 1, which is characterized in that the outlet equipped with air flue described in many places, many places
The outlet along the mass block receiving hole circumferential uniformly arrangement.
3. force application mechanism according to claim 1, which is characterized in that the mass block keeping body (9) is cylindrical in shape, periphery
Shroud (8) is cased with, the venthole being made of radial through-hole being connect with inlet suction port (17), the gas are equipped on shroud (8)
The entrance in road is connect by the venthole, the inlet suction port (17) with the gas supply mechanism.
4. force application mechanism described in any one of claim 1 to 3, which is characterized in that
Upper end cover (10) is equipped at the upper end of the mass block keeping body (9), the upper end cover (10) has through-hole (10a),
The mass block (6) has to be connect across the through-hole (10a) of the upper end cover (10) with displacement sensor (16)
Sensor attachment portion (6a),
There is the diameter to circulate for gas between the through-hole (10a) of the sensor attachment portion (6a) and the upper end cover (10)
To gap.
5. force application mechanism according to claim 4, which is characterized in that can be set with and add on the sensor attachment portion (6a)
Pouring weight (11), in the state of suit weight (11), the weight (11) and the through-hole of the upper end cover (10)
There is the radial clearance to circulate for gas between (10a).
6. force application mechanism described in any one of claim 1 to 3, which is characterized in that
Pressure head fixed plate (4) is installed in the lower face of the mass block (6),
The pressure head (2) is removably installed in the lower face of the pressure head fixed plate (4),
Bottom end cover (3) is equipped at the lower end of the mass block keeping body (9), the bottom end cover (3) has through-hole (3a),
The pressure head is extended downwardly via the through-hole (3a) of the bottom end cover (3).
7. force application mechanism described in any one of claim 1 to 3, which is characterized in that it is described by force application object be spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131283.9U CN207487622U (en) | 2017-09-05 | 2017-09-05 | Force application mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131283.9U CN207487622U (en) | 2017-09-05 | 2017-09-05 | Force application mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207487622U true CN207487622U (en) | 2018-06-12 |
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ID=62481373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721131283.9U Active CN207487622U (en) | 2017-09-05 | 2017-09-05 | Force application mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN207487622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462195A (en) * | 2017-09-05 | 2017-12-12 | 机科发展科技股份有限公司 | Force application mechanism |
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2017
- 2017-09-05 CN CN201721131283.9U patent/CN207487622U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462195A (en) * | 2017-09-05 | 2017-12-12 | 机科发展科技股份有限公司 | Force application mechanism |
| CN107462195B (en) * | 2017-09-05 | 2024-04-12 | 机科发展科技股份有限公司 | Force application mechanism |
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