CN203688378U - Rockwell hardness machine - Google Patents
Rockwell hardness machine Download PDFInfo
- Publication number
- CN203688378U CN203688378U CN201420066722.2U CN201420066722U CN203688378U CN 203688378 U CN203688378 U CN 203688378U CN 201420066722 U CN201420066722 U CN 201420066722U CN 203688378 U CN203688378 U CN 203688378U
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- main body
- objective table
- pressure head
- hardness tester
- screw mandrel
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Abstract
The utility model discloses a Rockwell hardness machine which comprises a dial plate, a hardness machine main body, a bracket, a pressure head, an objective table, a lead screw, a hand wheel and a conical gear set, wherein the bracket is arranged on the hardness machine main body, the pressure head is arranged in a groove in the middle of a fixing frame at the top of the bracket, the dial plate is arranged on the pressure head, the objective table is arranged below the bottom end of the pressure head and is fixed at the upper end face of the lead screw, the hand wheel comprises a main hand wheel and a fine tuning hand wheel, the main hand wheel is fixed in the middle of the lead screw, the lead screw is clamped in a hole in the upper end face of the hardness machine main body, the conical gear set comprises two conical gears, the large conical gear is arranged at the bottom end of the main hand wheel, the large conical gear is connected with the small conical gear in a gear pair manner, and the fine tuning hand wheel is connected with the small conical gear through a connecting shaft. According to the Rockwell hardness machine disclosed by the utility model, the lifting of the objective table is controlled by adopting a fine tuning device, and thus the measurement precision can be greatly improved and the Rockwell hardness is accurately measured.
Description
Technical field
The utility model relates to measuring equipment field, particularly a kind of Rockwell's hardness machine.
Background technology
Rockwell hardness test is, with certain pressure, pressure head is pressed into measured material surface, the soft or hard of measuring material by measuring depth of cup.The hardness of measured material can be read on the index dial of hardness tester.Measure the hardness of sample and first will load predetermined preload to tested sample, the large I of preload is read from the dial plate of pressure head top, in the time of little finger of toe pin arrow mark point on dial plate, shows that added preload has reached predetermined preload.In the operating process of rockwell hardness tester, first tested sample is placed on objective table, clockwise rotate large handwheel, sample is slowly contacted with pressure head, (when sample rises to while contacting with pressure head, pressure head applies certain load to sample), then need slowly to rotate large handwheel, make sample rising, sample rises highlyer, the load that pressure head imposes on sample is just larger, the angle that little finger of toe pin on dial plate rotates is simultaneously just larger, handwheel stops operating in the time that the little finger of toe pin on dynamometry dial plate turns to gauge point, now add load and reach predetermined preload.In test operation process, find; directly utilize rotation handwheel to control the lifting of objective table, be difficult to once make exactly dial plate little finger of toe pin arrow mark point, usually have certain deviation; thereby cause added preload out of true, the hardness number that finally affects measure and monitor the growth of standing timber material is not accurate enough.
utility model content
For above problem, the utility model is a kind of Rockwell's hardness machine, this Rockwell's hardness machine adopts a kind of fine adjustments device to control the lifting of objective table, thereby can greatly improve the precision of measuring, to reach the accurate measurement to material Rockwell's hardness, for reaching this object, the utility model provides a kind of Rockwell's hardness machine, comprise dial plate, hardness tester main body, support, pressure head, objective table, screw mandrel, handwheel and conical insert wheels, sample is placed on objective table, in described hardness tester main body, there is support, there is groove at the middle part of described top of the trellis fixed mount, described pressure head is arranged in a groove at top of the trellis fixed mount middle part, stretch out from a lower port for the groove at top of the trellis fixed mount middle part the bottom of described pressure head, on described pressure head, there is dial plate, on end face in described dial plate, there are gauge point and pointer, there is objective table the below, bottom of described pressure head, described objective table is fixed on the upper surface of screw mandrel, described handwheel comprises main handwheel and trimming hand wheel, described main handwheel is fixed on screw mandrel middle part by screw pair mode, in described hardness tester main body, there is cavity, described hardness tester main body upper surface is porose, described screw mandrel is installed on by main handwheel in the hole of hardness tester main body upper surface, described conical insert wheels comprise two cone gears, a cone gear is that cone gear of large cone gear is bevel pinion, the number of teeth of large cone gear is greater than the number of teeth of bevel pinion, described large cone gear is fixed on main handwheel bottom by key connected mode, described large cone gear is connected in gear pair mode with bevel pinion, described hardness tester main body one side has side opening, described trimming hand wheel has the outside of the end face of side opening in hardness tester main body, described trimming hand wheel is connected by coupling shaft with bevel pinion.
As further improvement of the utility model, described objective table is fixedly mounted on screw mandrel by terminal pad, described terminal pad shaped upper part is annular support surface, find in test for large-sized objective table, because the diameter of objective table is larger, if directly objective table is arranged on to leading screw upper end, because leading screw diameter is less, can not steadily effectively support objective table.In the course of the work, not steady due to objective table, affects indirectly the accuracy value of measurement.In the present invention, adopt terminal pad to solve this problem, the shaped upper part of terminal pad has adopted larger-diameter annular support surface, objective table is fixed on the annular support surface of terminal pad, thereby increase the steady degree of objective table, the lower end of terminal pad is connected with leading screw, has increased widely the steady degree of objective table by improving, thereby measuring accuracy is improved.
As further improvement of the utility model, described screw mandrel bottom one side has chute, between described screw mandrel bottom and the inwall of hardness tester main body internal cavity, there is support member, described support member one end is fixed by screws in the inwall of hardness tester main body internal cavity, the described support member other end is stuck in the chute of screw mandrel bottom by feather key, connect leading screw can not be rotated with respect to casing by feather key, can only rectilinear motion.
The jacking gear of the utility model control Rockwell's hardness machine objective table is made up of main handwheel, leading screw, terminal pad, objective table, large conical gear, small conical gear, coupling shaft, trimming hand wheel, support member, feather key, pressure head, dial plate, support etc.Wherein leading screw upper end is fixed with terminal pad, terminal pad upper end is fixed with objective table, on objective table, can place tested sample, there is hardness tester pressure head sample top, there is measuring pressure dial plate pressure head top, in dial plate, there is pointer, in the time of pointed gauge point, illustrate that added load value reaches predetermined preload value, when adjusting, first regulate again and finely tune by trimming hand wheel by main handwheel, control thereby realize the fine adjustments that objective table moves up and down, add like this preload accurate, thereby greatly improved the accuracy detecting.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the utility model partial schematic diagram;
Member in figure is:
1, dial plate; 2, gauge point; 3, pointer;
4, support; 5, pressure head; 6, sample;
7, objective table; 8, terminal pad; 9, screw mandrel;
10, main handwheel; 11, support member; 12, feather key;
13, large cone gear; 14, bevel pinion; 15, trimming hand wheel.
Embodiment
Below in conjunction with drawings and Examples, utility model is described in detail:
The utility model is a kind of Rockwell's hardness machine, and this Rockwell's hardness machine adopts a kind of fine adjustments device to control the lifting of objective table, thereby can greatly improve the precision of measuring, to reach the accurate measurement to Rockwell's hardness.
As a kind of embodiment of the utility model, the utility model provides a kind of Rockwell's hardness machine, comprise dial plate 1, hardness tester main body, support 4, pressure head 5, objective table 7, screw mandrel 9, handwheel and conical insert wheels, sample 6 is placed on objective table 7, in described hardness tester main body, there is support 4, there is groove at the middle part of described support 4 top fixed mounts, described pressure head 5 is arranged in the groove at support 4 fixed mount middle parts, top, stretch out from the lower port of the groove at support 4 fixed mount middle parts, top the bottom of described pressure head 5, on described pressure head 5, there is dial plate 1, on end face in described dial plate 1, there are gauge point 2 and pointer 3, there is objective table 7 below, bottom of described pressure head 5, described objective table 7 is fixed on the upper surface of screw mandrel 9, described handwheel comprises main handwheel 10 and trimming hand wheel 15, described main handwheel 10 is fixed on screw mandrel 9 middle parts by screw pair mode, in described hardness tester main body, there is cavity, described hardness tester main body upper surface is porose, described screw mandrel 9 is installed in the hole of hardness tester main body upper surface by main handwheel 10, described conical insert wheels comprise two cone gears, a cone gear is that 13 1 cone gears of large cone gear are bevel pinion 14, the number of teeth of large cone gear 13 is greater than the number of teeth of bevel pinion 14, described large cone gear 13 is fixed on main handwheel 10 bottoms by key connected mode, described large cone gear 13 is connected in gear pair mode with bevel pinion 14, described hardness tester main body one side has side opening, described trimming hand wheel 15 has the outside of the end face of side opening in hardness tester main body, described trimming hand wheel 15 is connected by coupling shaft with bevel pinion 14.
As a kind of most preferred embodiment of the utility model, the utility model provides schematic diagram partial schematic diagram a kind of Rockwell's hardness machine as shown in Figure 2 as shown in Figure 1, comprise dial plate 1, hardness tester main body, support 4, pressure head 5, objective table 7, screw mandrel 9, handwheel and conical insert wheels, sample 6 is placed on objective table 7, in described hardness tester main body, there is support 4, there is groove at the middle part of described support 4 top fixed mounts, described pressure head 5 is arranged in the groove at support 4 fixed mount middle parts, top, stretch out from the lower port of the groove at support 4 fixed mount middle parts, top the bottom of described pressure head 5, on described pressure head 5, there is dial plate 1, on end face in described dial plate 1, there are gauge point 2 and pointer 3, there is objective table 7 below, bottom of described pressure head 5, described objective table 7 is fixedly mounted on screw mandrel 9 by terminal pad 8, described terminal pad 8 shaped upper parts are annular support surface, find in test for large-sized objective table, because the diameter of objective table is larger, if directly objective table is arranged on to leading screw upper end, because leading screw diameter is less, can not steadily effectively support objective table.In the course of the work, not steady due to objective table, affects indirectly the accuracy value of measurement.In the present invention, adopt terminal pad to solve this problem, the shaped upper part of terminal pad has adopted larger-diameter annular support surface, objective table is fixed on the annular support surface of terminal pad, thereby increase the steady degree of objective table, the lower end of terminal pad is connected with leading screw, by improving the steady degree that has increased widely objective table, thereby measuring accuracy is improved, described handwheel comprises main handwheel 10 and trimming hand wheel 15, described main handwheel 10 is fixed on screw mandrel 9 middle parts by screw pair mode, in described hardness tester main body, there is cavity, described hardness tester main body upper surface is porose, described screw mandrel 9 is installed in the hole of hardness tester main body upper surface by main handwheel 10, described conical insert wheels comprise two cone gears, a cone gear is that 13 1 cone gears of large cone gear are bevel pinion 14, the number of teeth of large cone gear 13 is greater than the number of teeth of bevel pinion 14, described large cone gear 13 is fixed on main handwheel 10 bottoms by key connected mode, described large cone gear 13 is connected in gear pair mode with bevel pinion 14, described hardness tester main body one side has side opening, described trimming hand wheel 15 has the outside of the end face of side opening in hardness tester main body, described trimming hand wheel 15 is connected by coupling shaft with bevel pinion 14, described screw mandrel 9 bottom one sides have chute, between the inwall of described screw mandrel 9 bottoms and hardness tester main body internal cavity, there is support member 11, described support member 11 one end are fixed by screws in the inwall of hardness tester main body internal cavity, described support member 11 other ends are stuck in the chute of screw mandrel bottom by feather key 12, connect leading screw can not be rotated with respect to casing by feather key, can only rectilinear motion.
The utility model has adopted a kind of fine adjustments device to control the lifting of objective table, concrete operations are as follows: first tested sample will be placed on objective table, clockwise rotate main handwheel, sample is slowly contacted with pressure head, then slowly rotate handwheel, eyes are being seen the pointer on dial plate, in the time that pointer approaches gauge point, main handwheel stops operating, start to rotate trimming hand wheel, because the number of teeth of small conical gear is much smaller than the number of teeth of large conical gear, so can reach fine adjustments lifting of object loading table, make pointer can accurately reach gauge point (now add load value and reach predetermined preload value), by the lifting of fine adjustments objective table, thereby can avoid answering deviation to cause the inaccurate accuracy that affects institute's test specimens hardness of added preload value.
The above; it is only preferred embodiment of the present utility model; be not the restriction of the utility model being made to any other form, and according to any modification or equivalent variations that technical spirit of the present utility model is done, still belong to the utility model scope required for protection.
Claims (4)
1. a Rockwell's hardness machine, comprise dial plate (1), hardness tester main body, support (4), pressure head (5), objective table (7), screw mandrel (9), handwheel and conical insert wheels, sample (6) is placed on objective table (7), it is characterized in that: in described hardness tester main body, have support (4), there is groove at the middle part of described support (4) top fixed mount, described pressure head (5) is arranged in the groove at fixed mount middle part, support (4) top, stretch out from the lower port of the groove at support (4) top fixed mount middle part the bottom of described pressure head (5), on described pressure head (5), there is dial plate (1), on end face in described dial plate (1), there are gauge point (2) and pointer (3), there is objective table (7) below, bottom of described pressure head (5), described objective table (7) is fixed on the upper surface of screw mandrel (9), described handwheel comprises main handwheel (10) and trimming hand wheel (15), described main handwheel (10) is fixed on screw mandrel (9) middle part by screw pair mode, in described hardness tester main body, there is cavity, described hardness tester main body upper surface is porose, described screw mandrel (9) is installed in the hole of hardness tester main body upper surface by main handwheel (10), described conical insert wheels comprise two cone gears, a cone gear is that (13) cone gears of large cone gear are bevel pinion (14), the number of teeth of large cone gear (13) is greater than the number of teeth of bevel pinion (14), described large cone gear (13) is fixed on main handwheel (10) bottom by key connected mode, described large cone gear (13) is connected in gear pair mode with bevel pinion (14), described hardness tester main body one side has side opening, described trimming hand wheel (15) has the outside of the end face of side opening in hardness tester main body, described trimming hand wheel (15) is connected by coupling shaft with bevel pinion (14).
2. a kind of Rockwell's hardness machine according to claim 1, is characterized in that: described objective table (7) is fixedly mounted on screw mandrel (9) by terminal pad (8).
3. a kind of Rockwell's hardness machine according to claim 2, is characterized in that: described terminal pad (8) shaped upper part is annular support surface.
4. a kind of Rockwell's hardness machine according to claim 1, it is characterized in that: described screw mandrel (9) bottom one side has chute, between described screw mandrel (9) bottom and the inwall of hardness tester main body internal cavity, there is support member (11), described support member (11) one end is fixed by screws in the inwall of hardness tester main body internal cavity, and described support member (11) other end is stuck in the chute of screw mandrel (9) bottom by feather key (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066722.2U CN203688378U (en) | 2014-02-14 | 2014-02-14 | Rockwell hardness machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066722.2U CN203688378U (en) | 2014-02-14 | 2014-02-14 | Rockwell hardness machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688378U true CN203688378U (en) | 2014-07-02 |
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ID=51010265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420066722.2U Expired - Fee Related CN203688378U (en) | 2014-02-14 | 2014-02-14 | Rockwell hardness machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203391A (en) * | 2015-10-10 | 2015-12-30 | 南车戚墅堰机车车辆工艺研究所有限公司 | Microscopy hardness test fixture |
| CN112649314A (en) * | 2021-01-07 | 2021-04-13 | 河南省计量科学研究院 | Rockwell hardness measurement method using standard Rockwell hardness tester |
-
2014
- 2014-02-14 CN CN201420066722.2U patent/CN203688378U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203391A (en) * | 2015-10-10 | 2015-12-30 | 南车戚墅堰机车车辆工艺研究所有限公司 | Microscopy hardness test fixture |
| CN105203391B (en) * | 2015-10-10 | 2017-10-10 | 中车戚墅堰机车车辆工艺研究所有限公司 | Micro-hardness testing fixture |
| CN112649314A (en) * | 2021-01-07 | 2021-04-13 | 河南省计量科学研究院 | Rockwell hardness measurement method using standard Rockwell hardness tester |
| CN112649314B (en) * | 2021-01-07 | 2024-04-05 | 河南省计量测试科学研究院 | Rockwell hardness measurement method using standard Rockwell hardness tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20170214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |