CN204700525U - A kind of shock absorber piston rod nut tightening device - Google Patents
A kind of shock absorber piston rod nut tightening device Download PDFInfo
- Publication number
- CN204700525U CN204700525U CN201520337164.3U CN201520337164U CN204700525U CN 204700525 U CN204700525 U CN 204700525U CN 201520337164 U CN201520337164 U CN 201520337164U CN 204700525 U CN204700525 U CN 204700525U
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- CN
- China
- Prior art keywords
- piston rod
- shock absorber
- revolving part
- absorber piston
- rod nut
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Abstract
The utility model discloses a kind of shock absorber piston rod nut tightening device.Comprise: support, it is for fixing and supporting motive force device, device for screwing up and piston rod fixture; Power set, it comprises drive motors, reductor and control circuit, and it is for output torque, is the power of locking nut; And device for screwing up, it is arranged on the below of power set, and it comprises active rotation part and passive revolving part, is provided with nut block in the bottom of passive revolving part, and the bottom of nut block is provided with and treats the blind hole that fastening nut matches; Piston rod fixture, it is arranged on the bottom of support, and it is for clamp piston bar, and is located at immediately below described blind hole.The beneficial effects of the utility model are: can realize the strict control that can realize piston rod screw-down torque by this device, effectively improve the restriction characteristic of rebuilt valve, and extend its service life; Simple to operate, enhance productivity.
Description
Technical field
The utility model relates to a kind of nut tightening device, and particularly one is used for automobile vibration damper piston rod nut tightening device.
Background technology
In order to make the vibration of vehicle frame and vehicle body decay rapidly, improve ride comfort and the comfortableness of running car, automobile suspension system is generally all equipped with damper, what automobile extensively adopted is two-way function telescopic shock absorber.
Rebound valve structure in Automobile Shock Absorber is threaded connection the structures such as trimmer, circulation sheet, piston, pad and piston rod to be assembled together.Apply rational pretightning force at screw thread place, both can make each valve block compact siro spinning technology on rebuilt valve together, strengthen the ability that the reliability of each assembly and opposing external applied load are impacted, can ensure that again shock absorber has rational damping characteristic.Excessive or too small threaded pre-tightening power all can affect restriction characteristic and the service life of rebuilt valve, is therefore very necessary to the conservative control of screw-down torque.
Therefore, a kind ofly screw-down torque is controlled and the shock absorber piston rod nut tightening device that operation is simple and reliable becomes the key of dealing with problems.
Utility model content
The purpose of this utility model is to provide a kind of shock absorber piston rod nut tightening device, can control screw-down torque, according to predetermined screw-down torque fastening nut, enhances productivity.
Another object of the present utility model is to provide a kind of shock absorber piston rod nut tightening device, when reaching certain screw-down torque, can disconnect motor circuit in time, preventing motor reversal.
For achieving the above object, the utility model adopts following technical scheme, and a kind of shock absorber piston rod nut tightening device, comprising:
Support;
Rotating driving device, it supports on the bracket;
Revolving part, it coaxially connects the output shaft of described rotating driving device, and can rotate under the drive of described rotating driving device;
Passive revolving part, it is the multidiameter with different-diameter, and one end of minor diameter is inserted in the hole of described revolving part; And
Spill spin block, on its dismountable large diameter other end being connected to described passive revolving part, described spill spin block has the 3rd groove with described shock absorber piston rod nut shape coupling;
Torsion spring, it is set on described passive revolving part, and one end is fixedly connected with described revolving part, and the other end is fixedly connected with described passive revolving part;
Wherein, described revolving part, passive revolving part and spill spin block are coaxially arranged.
Preferably, described revolving part comprises flange and active rotation part, the output shaft of rotating driving device described in Flange joint;
Described active rotation part has through hole, and minor diameter one end of described passive revolving part is stretched out through described through hole, and external part limits direction motion straight down by hold-down nut;
Together with described flange is fixing with described active rotation part.
Preferably, comprising:
Clamping device, it is arranged on the described piston rod of shock absorber piston rod both sides for clamping;
Holding device, it is arranged on the bottom of shock absorber piston rod nut tightening device.
Preferably, comprising:
Hydraulic mechanism, it is arranged on the bottom of described holding device, and piston rod is vertically moved up and down.
Preferably, described rotating driving device comprises motor and decelerator, and motor transmits power to decelerator, and the output shaft of decelerator connects described revolving part.
Preferably, be respectively equipped with the first groove and the second groove on the top of described active rotation part and passive revolving part, in the second groove, be provided with copper billet, in the first groove, be provided with the travel switch of control circuit; Described travel switch can optionally contact with described copper billet.
Preferably, comprise in described control circuit:
First relay module, when travel switch and copper billet are connected, the first relay module is electrically connected described rotating driving device, and the first relay module drive motors rotates;
Second relay module, when travel switch and copper billet disconnect, the first relay module and rotating driving device disconnect, and the second relay module is electrically connected described rotating driving device, make the brake apparatus band-type brake of described rotating driving device, prevent motor reversal.
Preferably, described active rotation part and described passive revolving part have hole respectively, and the two ends for torsion spring are corresponding respectively inserts.
Preferably, the radial direction of described active rotation part and described passive revolving part has radial hole, and screw is screwed into radial hole, for extruding the two ends of torsion spring.
Preferably, described spill spin block has projection, and described projection is inserted in described passive spill spin block; Described passive spill spin block has radial hole, and screw is screwed into radial hole, for extruding described projection.
The beneficial effects of the utility model are: can realize the strict control that can realize piston rod screw-down torque by this device, effectively improve the restriction characteristic of rebuilt valve, and extend its service life; Simple to operate, enhance productivity.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of shock absorber piston rod nut tightening device of the present utility model;
The block diagram that Fig. 2 is driven by drive motors;
Fig. 3 is the primary importance figure of travel switch in rundown process;
Fig. 4 tightens the second place figure terminating rear travel switch;
Fig. 5 is the sectional view of active rotation part;
Fig. 6 is the phantom of passive revolving part.
Detailed description of the invention
Below in conjunction with accompanying drawing, utility model is described in further detail, can implements according to this with reference to description word to make those skilled in the art.
As shown in figures 1 to 6, a kind of shock absorber piston rod nut tightening device 1, comprises support 150, adopts metal material, such as steel, support 150 is gate frame structure, and have two sidewalls and an end face, two sidewalls be arranged in parallel, end face is fixed on the top of two sidewalls, in the centre position of end face, a stiffener is also set, together with stiffener is bolted with end face.In the center of end face and stiffener, a through hole is set.
Drive motors 111 is fixedly connected with decelerator 112, and the power shaft of the output shaft connection reducer 112 of drive motors 111, decelerator 112 is fixed on stiffener, and the output shaft of decelerator 112 passes the through hole of end face and stiffener center.Decelerator 112 to the output of motor 111, can carry out deceleration and increases square, expand the output area of the torque and rotational speed of motor 111.
As further preferred, drive motors 111 is fixed on stiffener, and the output shaft of drive motors 111 passes the through hole of end face and stiffener center.
The bottom of flange 120 is discoid, extends to form sidewall at the circumferential edges of disk along the normal orientation of disk, and bottom and sidewall form spatial accommodation.The center of bottom is connected with the output shaft of motor 111 or the output shaft of decelerator 112.Preferred as one, the center of bottom has internal spline through hole, its with motor 111 or the external splines of the output shaft of decelerator 112 coordinate.
Active rotation part 131, certain thickness discoid for having, center has through hole.The sidewall of flange 120 is fixedly connected with active rotation part 131 is not relatively turnable.Preferred as one, this being fixedly connected with is dismountable.Active rotation part 131 and flange 120 are coaxially arranged.Flange 120 and active rotation part 131, under the driving of motor 111, together rotate with motor 111.
Passive revolving part 133, for having the multidiameter that three sections of diameters do not wait, the diameter descending order arrangement of three sections.One end of minor diameter is inserted in the through hole of active rotation part 131, can have relative rotation between passive revolving part 133 and active rotation part 131.
Spill spin block 134, dismountable bottom being connected to major diameter one end of passive revolving part 133.Spill spin block 134 and active rotation part 133 are coaxially arranged, and between can not relatively rotate.The bottom of spill spin block 34 has groove, the mating shapes treating fastening nut 2 on the shape of groove and shock absorber piston rod.
Torsion spring 132 is helical spring, and one end is fixed on active rotation part 131, and the other end is fixed on passive revolving part 133.Torsion spring 132 has certain rigidity, has certain initial moment.When extraneous torque is less than initial moment, active rotation part 132 and passive revolving part 133 can together not rotate in relative rotation.Torsion spring 132 can be changed according to the actual needs.
When being arranged in the groove 139 of spill spin block 134 until fastening nut 2, drive motors 111 outputting rotary power, flange 120 and active rotation part 131 is driven together to rotate, when the torque of tightening fastening nut 2 is less than the initial moment of torsion spring 132, passive revolving part 133 and active rotation part 131 together do not rotate in relative rotation.When fastening nut 2 is tightened to required standard, the torque of tightening fastening nut 2 is greater than the initial moment of torsion spring 132, produces relative rotation between passive revolving part 133 and active rotation part 131.Now, disconnect the power supply of drive motors 111, drive motors 111 stops the rotation.
In another embodiment, flange 120 and active rotation part 131 form spatial accommodation, and one end of the minor diameter of passive revolving part 133 is stretched out through the central through hole of active rotation part 131, and external part is arranged in spatial accommodation, on external part, a sheathed pad, is then fixed by nut.The diameter of pad is greater than the diameter of the central through hole of active rotation part 131.By pad and nut, passive revolving part 133 can not, relative to active rotation part 131 to vertical direction motion, do spacing to passive revolving part 133 at vertical direction.
In another embodiment, also comprise: clamping device 141, it is arranged on the described piston rod 3 of shock absorber piston rod 3 both sides for clamping; The blessing end face of clamping device 141 is cambered surface, and cambered surface and shock absorber piston rod profile match.Preferred as one, clamping device 141, under the driving of hydraulic pressure or starting drive again, can clamp or loosen piston rod.Holding device 143, it is arranged on the bottom of shock absorber, and preferred as one, holding device 143 has hole, and the ram pot for shock absorber inserts location.After fastening nut 2 enters into the groove 139 of 134 of spill spin block, clamping device 141 steps up shock absorber piston rod.
In another embodiment, also comprise: hydraulic mechanism 142, it is arranged on the bottom of described holding device 143, and hydraulic mechanism 142 drives shock absorber to move up and down along vertical direction.When starting when working, hydraulic mechanism 142 drives shock absorber to rise, and makes the fastening nut 2 on piston rod enter into the groove 139 of spill spin block 134, then clamping device 141 clamping piston bar, and drive motors 111 drives and rotates.When rundown process completes, clamping device 141 unclamps piston rod, and hydraulic mechanism 142 drives shock absorber to decline, and then takes out shock absorber.
In another embodiment, active rotation part 131 is provided with the first groove 135, and passive revolving part 133 is provided with the second groove 136.Copper billet 138 is set in the second groove 136, in the first groove 135, is provided with the travel switch 137 of control circuit; Form switch 137 and have two operating positions, primary importance is that travel switch 137 contacts with copper billet 138, and the second place is that travel switch 137 does not contact with copper billet 138.According to concrete working condition, travel switch 137 can optionally contact with described copper billet 138.
As shown in Figure 3 and Figure 4, comprise in described control circuit: the first relay K A1 and the second relay K A2, master switch S, switch S B1 and switch S B2.Switch S B2 is generally in normal closure state.L is live wire, and N is zero line.
Need to tighten when fastening nut 2, now when travel switch 137 is connected with copper billet 138, closed master switch S, close switch SB1, relay K A1 in first relay obtains electric, thus the K switch A1 controlled on drive motors branch road closes, and the K switch A1 in the second relay K A2 branch road opens, the conducting of drive motors branch road, drive motors operates; When the work of tightening completes, active rotation part 131 and passive revolving part 133 relatively rotate, when causing travel switch 137 and copper billet 138 to disconnect, first relay power-off, the K switch A1 of drive motors branch road opens, the power-off of drive motors branch road, the K switch A1 of the second relay K A2 branch road closes simultaneously, second relay K A2 obtains electric, makes the brake apparatus band-type brake of decelerator, prevents motor 111 from reversing.
In another embodiment, the axis of active rotation part 131 has through hole, and the axis of passive revolving part 133 has through hole, and the two ends for torsion spring 132 are corresponding respectively inserts in the hole of active rotation part 131 and passive revolving part 133, to be fixed by torsion spring 132.Preferred as one, through hole can be stretched out in the two ends of torsion spring 132, then bending external part, thus the position of fixing torsion spring 132.
In another embodiment, the radial direction of active rotation part 131 has radial hole, and the radial direction of passive revolving part 133 has radial hole, and screw is screwed into radial hole respectively, and torsion spring 132 for extruding the two ends of torsion spring 132, thus is fixed by the top of screw
In another embodiment, the cylinder bottom spill spin block 134, bottom has cylindrical protrusions, and projection is inserted in passive spill spin block 133; Passive spill spin block 134 has radial hole, and screw is screwed into radial hole, for expression lobes, thus realizes the fixing of spill spin block 134.Spill spin block 134 is according to treating that the size of fastening nut 2 can be changed.
As mentioned above, shock absorber piston rod nut tightening device of the present utility model, can realize the strict control that can realize piston rod screw-down torque, simple to operate, enhances productivity.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (10)
1. a shock absorber piston rod nut tightening device, is characterized in that, comprising:
Support;
Rotating driving device, it supports on the bracket;
Revolving part, it coaxially connects the output shaft of described rotating driving device, and can rotate under the drive of described rotating driving device;
Passive revolving part, it is the multidiameter with different-diameter, and one end of minor diameter is inserted in the hole of described revolving part; And
Spill spin block, on its dismountable large diameter other end being connected to described passive revolving part, described spill spin block has the groove with described shock absorber piston rod nut shape coupling;
Torsion spring, it is set on described passive revolving part, and one end is fixedly connected with described revolving part, and the other end is fixedly connected with described passive revolving part;
Wherein, described revolving part, passive revolving part and spill spin block are coaxially arranged.
2. shock absorber piston rod nut tightening device according to claim 1, is characterized in that:
Described revolving part comprises flange and active rotation part, the output shaft of rotating driving device described in Flange joint;
Described active rotation part has through hole, and minor diameter one end of described passive revolving part is stretched out through described through hole, and external part limits direction motion straight down by fixed structure;
Together with described flange is fixing with described active rotation part.
3. shock absorber piston rod nut tightening device according to claim 1 and 2, is characterized in that: also comprise:
Clamping device, it is arranged on shock absorber piston rod both sides for clamping described piston rod;
Holding device, it is arranged on the bottom of shock absorber.
4. shock absorber piston rod nut tightening device according to claim 3, is characterized in that: also comprise: hydraulic mechanism, and it is arranged on the bottom of described holding device, and piston rod is vertically moved up and down.
5. shock absorber piston rod nut tightening device according to claim 1 and 2, is characterized in that: described rotating driving device comprises motor and decelerator, and motor transmits power to decelerator, and the output shaft of decelerator connects described revolving part.
6. shock absorber piston rod nut tightening device according to claim 2, it is characterized in that: be respectively equipped with the first groove and the second groove on the top of described active rotation part and passive revolving part, in the second groove, be provided with copper billet, in the first groove, be provided with the travel switch of control circuit; Described travel switch can optionally contact with described copper billet.
7. shock absorber piston rod nut tightening device according to claim 6, is characterized in that: comprise in described control circuit:
First relay module, when travel switch and copper billet are connected, the first relay module is electrically connected described rotating driving device, and the first relay module drive motors rotates;
Second relay module, when travel switch and copper billet disconnect, the first relay module and rotating driving device disconnect, and the second relay module is electrically connected described rotating driving device, make the brake apparatus band-type brake of described rotating driving device, prevent motor reversal.
8. shock absorber piston rod nut tightening device according to claim 2, is characterized in that: described active rotation part and described passive revolving part have hole respectively, and the two ends for torsion spring are corresponding respectively inserts.
9. shock absorber piston rod nut tightening device according to claim 8, is characterized in that: the radial direction of described active rotation part and described passive revolving part has radial hole, and screw is screwed into radial hole, for extruding the two ends of torsion spring.
10. shock absorber piston rod nut tightening device according to claim 1, is characterized in that: described spill spin block has projection, and described projection is inserted in described passive spill spin block; Described passive spill spin block has radial hole, and screw is screwed into radial hole, for extruding described projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520337164.3U CN204700525U (en) | 2015-05-21 | 2015-05-21 | A kind of shock absorber piston rod nut tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520337164.3U CN204700525U (en) | 2015-05-21 | 2015-05-21 | A kind of shock absorber piston rod nut tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204700525U true CN204700525U (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520337164.3U Withdrawn - After Issue CN204700525U (en) | 2015-05-21 | 2015-05-21 | A kind of shock absorber piston rod nut tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204700525U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827280A (en) * | 2015-05-21 | 2015-08-12 | 辽宁工业大学 | Screwing device for nut of shock absorber piston rod |
| CN108115395A (en) * | 2017-12-18 | 2018-06-05 | 贵州钢绳股份有限公司 | A kind of steel wire deep bid gland method for dismounting and its device |
| CN108213932A (en) * | 2017-12-29 | 2018-06-29 | 华工法利莱切焊系统工程有限公司 | Nut mounting mechanism and nut mounting device |
| CN112621187A (en) * | 2020-12-16 | 2021-04-09 | 华东栋 | Assembling equipment with prepressing effect for automobile shock absorber |
-
2015
- 2015-05-21 CN CN201520337164.3U patent/CN204700525U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827280A (en) * | 2015-05-21 | 2015-08-12 | 辽宁工业大学 | Screwing device for nut of shock absorber piston rod |
| CN104827280B (en) * | 2015-05-21 | 2017-04-12 | 辽宁工业大学 | Screwing device for nut of shock absorber piston rod |
| CN108115395A (en) * | 2017-12-18 | 2018-06-05 | 贵州钢绳股份有限公司 | A kind of steel wire deep bid gland method for dismounting and its device |
| CN108213932A (en) * | 2017-12-29 | 2018-06-29 | 华工法利莱切焊系统工程有限公司 | Nut mounting mechanism and nut mounting device |
| CN108213932B (en) * | 2017-12-29 | 2020-05-22 | 华工法利莱切焊系统工程有限公司 | Nut mounting mechanism and nut mounting device |
| CN112621187A (en) * | 2020-12-16 | 2021-04-09 | 华东栋 | Assembling equipment with prepressing effect for automobile shock absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151014 Effective date of abandoning: 20170412 |