CN203455454U - Spring force loading device - Google Patents
Spring force loading device Download PDFInfo
- Publication number
- CN203455454U CN203455454U CN201320561253.7U CN201320561253U CN203455454U CN 203455454 U CN203455454 U CN 203455454U CN 201320561253 U CN201320561253 U CN 201320561253U CN 203455454 U CN203455454 U CN 203455454U
- Authority
- CN
- China
- Prior art keywords
- push rod
- nut
- spring
- cylindrical member
- boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a spring force loading device. The device comprises a push rod, a cylindrical component, a fastening screw, a contact, a screw cap, a nut, a push block, a spring, a guide bush and a gasket. The contact is fixedly connected with the upper part of the push rod by the fastening screw. The push rod passes through the cylindrical component from top to bottom, and is coaxial with the cylindrical component. The upper part of the cylindrical component is provided with outer threads. Both the nut and the screw cap are in cooperation with the outer threads of the cylindrical component. The screw cap is disposed at the upper part of the nut, contacting with the nut. A boss projecting downwardly is arranged at the center of the nut, and is centrally provided with a hole, and the push rod passes through the hole of the boss. The push block is cylinder shaped and fixed at the lower part of the boss. The gasket is disposed on the bottom inside the cylindrical component. The push rod has a step and is thin at the top and thick at the bottom, and the bottom of the gasket contacts with the step. Two ends of the spring contacts with the push block and the gasket, respectively. The guide bush is mounted between the spring and the push rod. According to the utility model, the spring force loading device can be used for balancing weight instead of counterweights, thereby greatly reducing the labor intensity of workers, and improving the productivity.
Description
Technical field
The utility model relates to a kind of spring force charger.
Background technology
Electromagnetic switch requires in the test that checks the concerted action time: push rod loads the load of a certain weight, when armature and buting iron keep a certain gap, detects the starting time of electromagnetic switch.Conventionally to push rod, load and all adopt counterweight as counterweight, during test, workman need to repeatedly bring up to counterweight to move down.If the load adding less (how many or several kilograms), mobile counterweight labour intensity is little repeatedly, if load excessive (tens kilograms even up to a hundred kilograms), still adopt larger counterweight as counterweight, test tool also will increase increasing accordingly so, when loading, unloading, just need several workmans move up and down back and forth counterweight, labour intensity is very large.
Utility model content
Technical problem to be solved in the utility model is: a kind of spring force charger that can alleviate labor strength, boost productivity is provided, can replaces the counterweight of counterweight.
The technical solution of the utility model is: a kind of spring force charger, is characterized in that: described spring force charger comprises push rod 9, cylindrical member 4, holding screw 1, contact 2, nut 3, nut 5, jacking block 6, spring 7, pilot bushing 8, packing ring 11; Contact 2 is fixedly connected with push rod 9 tops by holding screw 1; Push rod 9 is from top to bottom through cylindrical member 4, and push rod 9 is coaxial with cylindrical member 4; Cylindrical member 4 tops divide lateral surface with external thread, and nut 5 all matches with the external thread of cylindrical member 4 with nut 3; Nut 3 is positioned at nut 5 tops and contacts with nut 5; There is a downward boss in nut 3 central authorities, and the middle part of boss is porose, and push rod 9 is through the hole of boss; A columniform jacking block 6 is fixed in boss bottom; Cylindrical member 4 inner bottom surface have a packing ring 11; Push rod 9 has a up-thin-low-thick step, and packing ring 11 bottoms contact with step; The two ends of spring 7 contact with jacking block 6 and packing ring 11 respectively; Between spring 7 and push rod 9, pilot bushing 8 is housed.
Further, ball 10 is equipped with in the through hole side of above-mentioned cylindrical member bottom center, and ball 10 contacts with push rod 9.
The beneficial effects of the utility model are: the utility model spring force charger, by using spring assembly, can replace counterweight counterweight, has alleviated greatly workman's labour intensity, has improved throughput rate; Meanwhile, make test tooling structure compacter, reasonable, weight alleviates greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model spring force charger;
Wherein, 1-holding screw, 2-contact, 3-nut, 4-cylindrical member, 5-nut, 6-jacking block, 7-spring, 8-pilot bushing, 9-push rod, 10-ball, 11-packing ring.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
Referring to Fig. 1, a kind of spring force charger, comprises push rod 9, cylindrical member 4, holding screw 1, contact 2, nut 3, nut 5, jacking block 6, spring 7, pilot bushing 8, packing ring 11; Contact 2 is fixedly connected with push rod 9 tops by holding screw 1; Push rod 9 is from top to bottom through cylindrical member 4, and push rod 9 is coaxial with cylindrical member 4; Cylindrical member 4 tops divide lateral surface with external thread, and nut 5 all matches with the external thread of cylindrical member 4 with nut 3; Nut 3 is positioned at nut 5 tops and contacts with nut 5; There is a downward boss in nut 3 central authorities, and the middle part of boss is porose, and push rod 9 is through the hole of boss; A columniform jacking block 6 is fixed in boss bottom; Cylindrical member 4 inner bottom surface have a packing ring 11; Push rod 9 has a up-thin-low-thick step, and packing ring 11 bottoms contact with step; The two ends of spring 7 contact with jacking block 6 and packing ring 11 respectively; Between spring 7 and push rod 9, pilot bushing 8 is housed.Ball 10 is equipped with in the through hole side of above-mentioned cylindrical member bottom center, and ball 10 contacts with push rod 9.
Spring 7 is adjusted into a suitable precompression when push rod 9 strokes start, to meet when push rod 9 moves to the armature of electromagnetic switch and the distance in the gap that buting iron requires maintenance, spring force reaches push rod and requires the weight loading; The test of above-mentioned calibrating spring should be carried out continuously ten times and be unchanged, to prove that the adjustment of spring meets the demands; After calibrating spring, by nut 3 and nut 5 lockings, and remember with indicating at nut 3 and nut 5 junction coating white enamel paint, in cylindrical member 4 outsides, engrave the actual numerical value that spring is adjusted precompression; Ball between push rod 9 and cylindrical member 4 wants anoint to pack installation place into, guarantees that push rod evenly moves with initial load, and without dumb phenomenon.
It is the key in this device that the design of spring is chosen, and according to required load, chooses the spring that working ultimate load surpasses this load, then by designing and calculating, obtains the length of spring.
This device is fixed on test fixture and can realizes the object loading to electromagnetic switch push rod.If inching conversion switch is installed to this device above by support, make it contact the starting time that just can measure after electromagnetic switch energising with contact 2.
Claims (2)
1. a spring force charger, is characterized in that: described spring force charger comprises push rod (9), cylindrical member (4), holding screw (1), contact (2), nut (3), nut (5), jacking block (6), spring (7), pilot bushing (8), packing ring (11); Contact (2) is fixedly connected with push rod (9) top by holding screw (1); Push rod (9) is from top to bottom through cylindrical member (4), and push rod (9) is coaxial with cylindrical member (4); Cylindrical member (4) top divides lateral surface with external thread, and nut (5) all matches with the external thread of cylindrical member (4) with nut (3); Nut (3) is positioned at nut (5) top and contacts with nut (5); There is a downward boss in nut (3) central authorities, and the middle part of boss is porose, and push rod (9) is through the hole of boss; A columniform jacking block (6) is fixed in boss bottom; Cylindrical member (4) inner bottom surface has a packing ring (11); Push rod (9) has a up-thin-low-thick step, and packing ring (11) bottom contacts with step; The two ends of spring (7) contact with jacking block (6) and packing ring (11) respectively; Between spring (7) and push rod (9), pilot bushing (8) is housed.
2. spring force charger according to claim 1, is further characterized in that: ball (10) is equipped with in the through hole side of described cylindrical member bottom center, and ball (10) contacts with push rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561253.7U CN203455454U (en) | 2013-09-10 | 2013-09-10 | Spring force loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561253.7U CN203455454U (en) | 2013-09-10 | 2013-09-10 | Spring force loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203455454U true CN203455454U (en) | 2014-02-26 |
Family
ID=50135320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320561253.7U Expired - Fee Related CN203455454U (en) | 2013-09-10 | 2013-09-10 | Spring force loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203455454U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194902A (en) * | 2016-09-20 | 2016-12-07 | 北京机械设备研究所 | A kind of force loading device based on spring |
| CN108507660A (en) * | 2018-03-21 | 2018-09-07 | 郑州拽亘电子科技有限公司 | A kind of weighing sensor calibration method of Flat plate type brake verifying bench |
| CN109616342A (en) * | 2018-11-15 | 2019-04-12 | 中国直升机设计研究所 | A kind of electric switch rod assembly with big stroke |
-
2013
- 2013-09-10 CN CN201320561253.7U patent/CN203455454U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194902A (en) * | 2016-09-20 | 2016-12-07 | 北京机械设备研究所 | A kind of force loading device based on spring |
| CN108507660A (en) * | 2018-03-21 | 2018-09-07 | 郑州拽亘电子科技有限公司 | A kind of weighing sensor calibration method of Flat plate type brake verifying bench |
| CN108507660B (en) * | 2018-03-21 | 2020-12-01 | 郑州拽亘电子科技有限公司 | Weighing sensor calibration method of flat plate type brake inspection platform |
| CN109616342A (en) * | 2018-11-15 | 2019-04-12 | 中国直升机设计研究所 | A kind of electric switch rod assembly with big stroke |
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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: 20140226 Termination date: 20140910 |
|
| EXPY | Termination of patent right or utility model |