CN209877936U - Self-adaptive limiting mechanism for transmission shaft of roughness meter - Google Patents
Self-adaptive limiting mechanism for transmission shaft of roughness meter Download PDFInfo
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- CN209877936U CN209877936U CN201920798139.3U CN201920798139U CN209877936U CN 209877936 U CN209877936 U CN 209877936U CN 201920798139 U CN201920798139 U CN 201920798139U CN 209877936 U CN209877936 U CN 209877936U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 91
- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 230000003044 adaptive effect Effects 0.000 claims 4
- 238000009434 installation Methods 0.000 abstract description 17
- 238000003825 pressing Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004439 roughness measurement Methods 0.000 description 1
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Abstract
The utility model discloses a coarseness gauge transmission shaft self-adaptive limiting mechanism, which comprises a mounting base, a mounting hole is horizontally penetrated in the mounting base, a wear-resistant shaft sleeve is arranged in the mounting hole, a transmission shaft is arranged in the wear-resistant shaft sleeve in a sliding manner, a wear-resistant limiting device is arranged between the wear-resistant shaft sleeve and the mounting base, one end of the wear-resistant limiting device is supported on the outer peripheral surface of the transmission shaft, and a self-adaptive pressing device is arranged between the other end of the wear-resistant limiting device and the mounting base; the utility model can prevent the transmission shaft from directly contacting with the mounting hole, not only solves the problem of the elastic fit of the sliding fit of the transmission shaft and the mounting hole in the prior art, but also solves the problem of lower abrasion under the condition of horizontal installation in the prior art, and improves the wear resistance, the measurement precision and the service life of the utility model; the device also has the advantages of simple structure, reasonable design, lower cost, convenient installation and the like, and is beneficial to the wide use of roughness instruments.
Description
Technical Field
The utility model relates to a roughness measurement technical field especially relates to a roughness meter transmission shaft self-adaptation limiting mechanism.
Background
The portable roughness meter is a precise special device for detecting the microcosmic fluctuation of the surface of an object, when the surface of a workpiece is measured, the surface of the workpiece is mainly detected by a manual handheld instrument, a contact pin of a sensor is lapped on the workpiece and vertically contacted with the measured surface of the workpiece, the sensor is dragged at a certain speed by a transmission mechanism, and the contact pin moves up and down according to the fluctuation change of the peak valley of the profile of the measured surface, so that the roughness condition of the measured surface is detected. The measurement principle requires that the whole transmission mechanism has high stability, and the fixed installation mode of the transmission shaft in the whole transmission mechanism seriously restricts the linearity and the stability of the whole operation of the equipment. The existing transmission shaft mounting modes mainly comprise two types: one is that the transmission shaft is directly installed in a sliding fit with the installation hole; the other is to mount the transmission shaft by a linear bearing.
When the transmission shaft and the mounting hole are directly installed in a sliding fit manner, if the sliding resistance between the transmission shaft and the mounting hole is too large, the load of the driving unit is too large, the motor is overloaded, the whole system generates voltage surge, and the transmission shaft is unstable in operation; in order to reduce the sliding resistance, need to install too loose between transmission shaft and the mounting hole, at this moment, the transmission shaft can take place to rock in the motion, long-term back of using, the clearance between transmission shaft and the mounting hole can increase gradually, horizontal installation's transmission shaft can make the below wearing and tearing aggravate under the action of gravity, whole mounting hole presents similar oval shape, has not only reduced measurement accuracy, has shortened life in addition, if will wear and tear the part change, will intangible increase cost among the. When the linear bearing is adopted for installation, the overall measurement accuracy of the instrument completely depends on the accuracy of the linear bearing, and higher measurement accuracy can be ensured, but the cost of the roughness instrument can be increased due to the overhigh price of the linear bearing, so that the wide application of the roughness instrument is not facilitated.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a simple structure, reasonable in design, the cost is lower, the wearability is good, simple to operate's roughness appearance transmission shaft self-adaptation limiting mechanism.
In order to solve the technical problem, the technical scheme of the utility model is that: roughness appearance transmission shaft self-adaptation limiting mechanism, including the mounting base, the level runs through and is equipped with the mounting hole in the mounting base, install wear-resisting axle sleeve in the mounting hole, slidable mounting has the transmission shaft in the wear-resisting axle sleeve, wear-resisting axle sleeve with be provided with wear-resisting stop device between the mounting base, wear-resisting stop device's one end is supported on the outer peripheral face of transmission shaft, wear-resisting stop device's the other end with install self-adaptation closing device between the mounting base.
As a preferred technical scheme, the wear-resistant shaft sleeve comprises transmission shaft sleeves respectively installed at two ends of the installation hole, the transmission shaft is slidably installed in the two transmission shaft sleeves, and one wear-resistant limiting device is arranged between any one of the transmission shaft sleeves and the transmission shaft.
According to the preferable technical scheme, the wear-resistant limiting device comprises a base side hole formed in the mounting base, the axis of the base side hole is perpendicular to the axis of the transmission shaft, a shaft sleeve side hole corresponding to the base side hole is formed in the wear-resistant shaft sleeve, a wear-resistant limiting shaft penetrates through the base side hole and the shaft sleeve side hole, the top end of the wear-resistant limiting shaft is supported on the outer peripheral surface of the transmission shaft, and the bottom end of the wear-resistant limiting shaft is connected with the self-adaptive pressing device.
As a preferred technical scheme, the self-adaptive compressing device comprises a spring piece which is obliquely arranged, the spring piece is connected to the mounting base through a screw thread, a mounting groove is formed in the outer surface of the mounting base, one end of the spring piece is embedded in the mounting groove, and the other end of the spring piece is supported at the bottom end of the wear-resistant limiting shaft and compresses the top end of the wear-resistant limiting shaft on the outer peripheral surface of the transmission shaft.
As a preferred technical scheme, the wear-resistant limiting shaft is a polytetrafluoroethylene shaft; the wear-resistant shaft sleeve is a polytetrafluoroethylene shaft sleeve.
By adopting the technical scheme, the self-adaptive limiting mechanism for the transmission shaft of the roughness meter comprises a mounting base, wherein a mounting hole is horizontally arranged in the mounting base in a penetrating manner, a wear-resistant shaft sleeve is arranged in the mounting hole, the transmission shaft is arranged in the wear-resistant shaft sleeve in a sliding manner, a wear-resistant limiting device is arranged between the wear-resistant shaft sleeve and the mounting base, one end of the wear-resistant limiting device is supported on the outer peripheral surface of the transmission shaft, and a self-adaptive pressing device is arranged between the other end of the wear-resistant limiting device and the mounting base; the utility model has the advantages that:
1. the arrangement of the wear-resistant shaft sleeve can prevent the transmission shaft from directly contacting with the mounting hole, and effectively solves the problem of loose fit of the sliding fit of the transmission shaft and the mounting hole in the prior art;
2. the self-adaptive pressing device is pressed at the bottom end of the wear-resistant limiting device, the wear-resistant limiting device is pushed upwards, so that the top end of the wear-resistant limiting device supports the transmission shaft, at the moment, the bottom end of the transmission shaft is only contacted with the top end of the wear-resistant limiting device, the problem of lower wear under the condition of horizontal installation in the prior art is solved, and the wear resistance of the whole device is greatly improved;
3. the wear-resistant shaft sleeve is installed in the installation base through the wear-resistant limiting device, so that the problem of difficulty in installation of the wear-resistant shaft sleeve is solved, and the wide application of a roughness instrument is facilitated;
4. the wear-resistant limiting device and the wear-resistant shaft sleeve are made of wear-resistant materials, so that even if the wear-resistant limiting device and the wear-resistant shaft sleeve are worn, the wear loss is small compared with that in the prior art, and the service life of the device is prolonged;
5. the self-adaptive pressing device can enable the wear-resistant limiting device to be in contact with the transmission shaft all the time, and ensure that the transmission shaft is supported all the time, so that the operation and adjustment processes of users can be effectively reduced, and the device is more convenient to use;
6. the utility model discloses still have advantages such as simple structure, reasonable in design, cost are lower, simple to operate, pressure are controllable.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the embodiment A-A of the present invention;
in the figure: 1-mounting a base; 2-mounting holes; 3, driving a shaft; 4-driving shaft sleeve; 5-wear-resistant limiting shaft; 6-spring leaf; 7-a screw; and 8, installing a groove.
Detailed Description
The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1 and 2, roughness meter transmission shaft self-adaptation limiting mechanism, including mounting base 1, the mounting hole 2 is run through to be equipped with horizontally in the mounting base 1, install wear-resisting axle sleeve in the mounting hole 2, slidable mounting has transmission shaft 3 in the wear-resisting axle sleeve, wear-resisting axle sleeve with be provided with wear-resisting stop device between the mounting base 1, wear-resisting stop device's one end is supported on the outer peripheral face of transmission shaft 3, wear-resisting stop device's the other end with install self-adaptation closing device between the mounting base 1. The mounting base 1, the mounting hole 2 and the transmission shaft 3 are all in the prior art, and the specific structure is not described again; the arrangement of the wear-resistant shaft sleeve can prevent the transmission shaft 3 from directly contacting the mounting hole 2, and effectively solves the problem of loose fit of the sliding fit of the transmission shaft 3 and the mounting hole 2 in the prior art; the self-adaptive pressing device is pressed at the bottom end of the wear-resistant limiting device, the wear-resistant limiting device is pushed upwards, the top end of the wear-resistant limiting device supports the transmission shaft 3, at the moment, the bottom end of the transmission shaft 3 is only contacted with the top end of the wear-resistant limiting device, the problem of lower abrasion under the condition of horizontal installation in the prior art is solved, and the wear resistance of the whole device is greatly improved; the wear-resistant shaft sleeve is installed in the installation base 1 through the wear-resistant limiting device, so that the problem of difficulty in installation of the wear-resistant shaft sleeve is solved, and the wide application of a roughness instrument is facilitated; the wear-resistant limiting device and the wear-resistant shaft sleeve are made of wear-resistant materials, so that even if the wear-resistant limiting device and the wear-resistant shaft sleeve are worn, the wear loss is small compared with that in the prior art, and the service life of the device is prolonged; the arrangement of the self-adaptive pressing device can enable the wear-resistant limiting device to be in contact with the transmission shaft 3 all the time, and ensure that the transmission shaft 3 is supported all the time, so that the operation and adjustment processes of users can be effectively reduced, the device is more convenient to use, and is more beneficial to wide popularization and use; just the utility model discloses still have simple structure, reasonable in design, the cost is lower, simple to operate, pressure advantage such as controllable.
The wear-resistant shaft sleeve comprises transmission shaft sleeves 4 which are respectively arranged at two ends of the mounting hole 2, the transmission shafts 3 are slidably arranged in the transmission shaft sleeves 4, and one wear-resistant limiting device is arranged between any one of the transmission shaft sleeves 4 and the transmission shaft 3.
Wear-resisting stop device is including setting up base side opening on the mounting base 1, the axis of base side opening with the axis of transmission shaft 3 is perpendicular, be provided with on the wear-resisting axle sleeve with the axle sleeve side opening that the base side opening corresponds, the base side opening with run through being provided with wear-resisting spacing axle 5 in the axle sleeve side opening, the top of wear-resisting spacing axle 5 is supported on the outer peripheral face of transmission shaft 3, the bottom of wear-resisting spacing axle 5 with self-adaptation closing device connects. In this embodiment, the top of wear-resisting spacing axle 5 sets up to hemispherical structure, wear-resisting spacing axle 5 with be the point contact between the transmission shaft 3, can effectual reduction wear-resisting spacing axle 5 with friction between the transmission shaft 3, at this moment, friction between the two is minimum, and when the life is longer back, wear and tear can take place for the top of wear-resisting spacing axle 5, and the top shape can change, with area of contact between the wear-resisting spacing axle 5 can the grow, can increase wear-resisting spacing axle 5 with friction between the transmission shaft 3, nevertheless, the change of shape still satisfies operation requirement to do not influence the utility model discloses an excellent in use effect.
Self-adaptation closing device is including the spring leaf 6 that the slope set up, be provided with the screw hole on the mounting base 1, screw 7 is installed to the screw thread on the screw hole, spring leaf 6 passes through screw 7 threaded connection on mounting base 1, the surface of mounting base 1 is provided with mounting groove 8, the one end of spring leaf 6 inlays the dress and is in mounting groove 8, prevents the tip of spring leaf 6 is followed come out in the mounting groove 8, the other end of spring leaf 6 supports the bottom of wear-resisting spacing axle 5 and will the top of wear-resisting spacing axle 5 compresses tightly on the outer peripheral face of transmission shaft 3. The spring plate 6, the screw 7 and the mounting base 1 form a lever structure, because the screw 7 is located near the middle of the spring plate 6, and because one end of the spring plate 6 is always limited in the mounting groove 8, when the screw 7 is screwed into the threaded hole more, the other end of the spring plate 6 is forced to have a tendency to move upwards, and the wear-resistant limiting shaft 5 is pushed to have a constant upward pressure to act on the transmission shaft 3.
The wear-resistant limiting shaft 5 is a polytetrafluoroethylene shaft; the wear-resistant shaft sleeve is a polytetrafluoroethylene shaft sleeve; states wear-resisting spacing axle 5 with wear-resisting axle sleeve all adopts the polytetrafluoroethylene material, has advantages such as light in weight, wearability are good, long service life, improvement that can step forward the utility model discloses a wearability and life.
The utility model discloses a theory of operation does:
when the mounting base is in use, the transmission shaft 3 is horizontally arranged, and the wear-resistant limiting shaft 5 is vertically arranged at the bottom of the mounting base 1; the lever structure formed by the spring piece 6, the screw 7 and the mounting base 1 can enable the wear-resistant limiting shaft 5 to have a constant upward pressure to act on the transmission shaft 3, so that the top end of the wear-resistant limiting shaft 5 is upwards contacted with the transmission shaft 3, meanwhile, the tightness of the two screws 7 is adjusted by screwing in and out the two screws 7, namely, the deformation degree of the two spring pieces 6 is adjusted, so that the pressure acting on the wear-resistant limiting shaft 5 is larger than the gravity of the transmission shaft 3, at the moment, the top ends of the two wear-resistant limiting shafts 5 can support the transmission shaft 3, meanwhile, the bottom end of the transmission shaft 3 is ensured not to be contacted with the bottom wall of the transmission shaft sleeve 4, and the top end of the transmission shaft 3 is also ensured not to be contacted with the top wall of the transmission shaft sleeve 4, so that the optimal installation state before the device is used is achieved;
therefore, when the transmission shaft 3 moves, friction is only generated between the transmission shaft 3 and the top end of the wear-resistant limiting shaft 5 and the side wall of the transmission shaft sleeve 4, and friction is not generated between the transmission shaft 3 and the mounting hole 2, so that the problem of loose fit of the transmission shaft 3 and the mounting hole 2 in a sliding fit manner in the prior art is effectively solved, the problem of lower wear in the prior art under the condition of horizontal installation is also solved, the wear resistance of the whole device is greatly improved, the measurement precision of the device is improved, the production cost is reduced, and the service life of the mounting hole 2 is effectively prolonged; even if the wear-resistant limiting shaft 5 is slightly worn due to long-term use, due to the elastic pressure of the spring piece 6, the spring piece 6 can generate elastic deformation and always act on the bottom of the wear-resistant limiting shaft 5, the wear-resistant limiting shaft 5 is pushed from the bottom to move upwards to compensate the wear of the wear-resistant limiting shaft 5, so that the position of the transmission shaft 3 is kept unchanged, the self-adaptive adjustment process of the wear-resistant limiting shaft 5 is realized, the operation and adjustment processes of users can be effectively reduced, the use of the device is more convenient, and the device is more beneficial to wide popularization and use;
and during the installation, wear-resisting spacing axle 5 passes the base side opening with the axle sleeve side opening, at this moment, the position quilt of driving sleeve 4 the change of axial and circumference can't take place in the restriction location of wear-resisting spacing axle 5, axle sleeve side opening design makes driving sleeve 4 self installation need not to use the jackscrew, has effectively prevented self pressurized deformation and has crossed the pine and take off, simple structure, and simple to operate works as driving sleeve 4 in case form when wearing and tearing need to be changed, will wear-resisting spacing axle 5 demolish can with driving sleeve 4 is torn open, and the dismantlement process is also more convenient.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Roughness appearance transmission shaft self-adaptation limiting mechanism, including the mounting base, the level runs through to be equipped with mounting hole, its characterized in that in the mounting base: install wear-resisting axle sleeve in the mounting hole, slidable mounting has the transmission shaft in the wear-resisting axle sleeve, wear-resisting axle sleeve with be provided with wear-resisting stop device between the mounting base, wear-resisting stop device's one end is supported on the outer peripheral face of transmission shaft, wear-resisting stop device's the other end with install self-adaptation closing device between the mounting base.
2. The adaptive roughmeter drive shaft limiting mechanism according to claim 1, wherein: the wear-resistant shaft sleeves comprise transmission shaft sleeves which are respectively arranged at two ends of the mounting hole, the transmission shafts are slidably arranged in the two transmission shaft sleeves, and one wear-resistant limiting device is arranged between any one of the transmission shaft sleeves and the transmission shaft.
3. The adaptive roughmeter drive shaft limiting mechanism according to claim 2, wherein: wear-resisting stop device is including setting up base side opening on the mounting base, the axis of base side opening with the axis of transmission shaft is perpendicular, be provided with on the wear-resisting axle sleeve with the axle sleeve side opening that the base side opening corresponds, the base side opening with run through being provided with wear-resisting spacing axle in the axle sleeve side opening, the top of wear-resisting spacing axle is supported on the outer peripheral face of transmission shaft, the bottom of wear-resisting spacing axle with self-adaptation closing device connects.
4. The adaptive roughmeter drive shaft limiting mechanism according to claim 3, wherein: the self-adaptive compressing device comprises a spring piece which is obliquely arranged, the spring piece is connected to the mounting base through screw threads, a mounting groove is formed in the outer surface of the mounting base, one end of the spring piece is embedded in the mounting groove, and the other end of the spring piece is supported at the bottom end of the wear-resistant limiting shaft and compresses the top end of the wear-resistant limiting shaft onto the outer peripheral surface of the transmission shaft.
5. The adaptive roughmeter drive shaft limiting mechanism according to claim 3, wherein: the wear-resistant limiting shaft is a polytetrafluoroethylene shaft; the wear-resistant shaft sleeve is a polytetrafluoroethylene shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920798139.3U CN209877936U (en) | 2019-05-30 | 2019-05-30 | Self-adaptive limiting mechanism for transmission shaft of roughness meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920798139.3U CN209877936U (en) | 2019-05-30 | 2019-05-30 | Self-adaptive limiting mechanism for transmission shaft of roughness meter |
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| Publication Number | Publication Date |
|---|---|
| CN209877936U true CN209877936U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920798139.3U Active CN209877936U (en) | 2019-05-30 | 2019-05-30 | Self-adaptive limiting mechanism for transmission shaft of roughness meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068300A (en) * | 2019-05-30 | 2019-07-30 | 山东中科普锐检测技术有限公司 | Self-adaptive limiting mechanism for transmission shaft of roughness meter |
-
2019
- 2019-05-30 CN CN201920798139.3U patent/CN209877936U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068300A (en) * | 2019-05-30 | 2019-07-30 | 山东中科普锐检测技术有限公司 | Self-adaptive limiting mechanism for transmission shaft of roughness meter |
| CN110068300B (en) * | 2019-05-30 | 2023-12-19 | 山东中科普锐检测技术有限公司 | Self-adaptive limiting mechanism for transmission shaft of coarseness gauge |
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