CN108731959B - Buffering trolley for testing electric cylinder - Google Patents
Buffering trolley for testing electric cylinder Download PDFInfo
- Publication number
- CN108731959B CN108731959B CN201810314171.XA CN201810314171A CN108731959B CN 108731959 B CN108731959 B CN 108731959B CN 201810314171 A CN201810314171 A CN 201810314171A CN 108731959 B CN108731959 B CN 108731959B
- Authority
- CN
- China
- Prior art keywords
- buffer
- buffering
- swing arm
- trolley
- vehicle body
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
Abstract
The invention discloses a buffer trolley for testing an electric cylinder, which mainly solves the technical problem of how to design a buffer trolley in the prior art, wherein the buffer trolley can resist and unload the impact energy of a vertical rack impacting the buffer trolley, and cannot generate backspacing during impact so as to influence the buffer effect, the vehicle body is provided with a detection unit for detecting whether the vertical rack falls or not and a buffer component for bearing the impact of the vertical rack, the lower part of the vehicle body is provided with a backstop device for preventing the vehicle body from backing, the lower part of the vehicle body is provided with an anti-derailment device for preventing the vehicle body from derailing, the technical scheme that the controller receives the signal transmitted by the detection unit to control the stopping device to act better solves the problem and can be used for buffering the trolley.
Description
Technical Field
The invention relates to a buffer trolley for testing an electric cylinder.
Background
The electric cylinder is a device for converting the rotary motion of the motor into linear motion, has the advantages of accurately controlling the position, the speed and the thrust, and is widely applied to the fields of mechanical automation, industrial robots, automobiles and the like. In the process of developing and producing the electric cylinder, various performance parameters of the electric cylinder, such as maximum load, thrust, tension, stroke and the like, need to be tested. In the process of testing the high-power erecting electric cylinder, the electric cylinder testing buffer trolley is mainly used for abnormal power loss and failure of a motor brake in the erecting and leveling processes of the erecting rack, supports the erecting rack, absorbs the impact energy generated by the falling of the erecting rack, prevents the erecting rack from stalling and falling to damage equipment and hurt personnel, generates large impact energy when the erecting rack falls, it is necessary that the buffer trolley has enough supporting force (not less than 30 tons), otherwise it is difficult to play the role of protective buffer, meanwhile, when the buffer trolley absorbs the impact energy, the buffer trolley can retreat under the action of horizontal direction component force, thereby not only influencing the buffer effect, and if the retraction speed is too high, the personnel and equipment can be injured, so that the buffer trolley which can resist and unload the impact energy of the vertical rack impacting the buffer trolley and cannot retract during impact to influence the buffer effect is required to be designed.
Disclosure of Invention
The invention aims to solve the technical problem of how to design a buffer trolley which can resist and unload the impact energy of a vertical rack impacting the buffer trolley and cannot generate rollback during impact so as to influence the buffer effect in the prior art, and provides a novel buffer trolley for testing an electric cylinder.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an electronic cylinder test is with buffering dolly, includes the automobile body, be equipped with on the automobile body and be used for accepting the buffer gear who erects the rack striking and detect the detecting element who erects the rack and whether fall, the automobile body lower part is equipped with and is used for preventing the stopping device that the automobile body backed off, the automobile body lower part is equipped with and is used for preventing the derailing prevention device of automobile body derailing receives through the controller the signal that detecting element passed is controlled the stopping device action.
Further, preferably, buffer gear is including setting up support frame on the automobile body, be equipped with the buffering swing arm on the support frame, buffering swing arm one end with through pivot swing joint between the support frame, be equipped with in the buffering swing arm the detecting element, buffering swing arm bottom with be equipped with at least a set of buffer between the support frame, be equipped with spacing support column on the support frame, spacing support column top is equipped with the blotter.
Preferably, the buffer mechanisms are at least provided with two groups, and the two adjacent groups of buffer mechanisms are connected through a cross beam.
More preferably, the buffering swing arm is provided with anti-slip teeth, and the other end of the buffering swing arm is provided with a rubber-lined roller.
More preferably, the detection unit includes a light curtain assembly disposed on the buffer swing arm, and the light curtain assembly is composed of a light emitter and a light receiver.
More preferably, the light emitter is mounted at one end of the buffer swing arm far away from the fixed point, and the light receiver is mounted at one end of the buffer swing arm near the fixed point.
Preferably, the backstop device is including installing at subaerial backstop rack, movable mounting pawl on the automobile body, install be used for on the automobile body control pawl stretch out the card and go into the backstop rack and retract and leave the electro-magnet of backstop rack and be used for driving the pawl retracts and leaves the spring of backstop rack, the spring sets up the electro-magnet with between the pawl.
More preferably, the light emitter is mounted at one end, far away from the fixed point, of the buffering swing arm through a mounting bracket; the mounting bracket is connected with the buffer swing arm through a roller and a spring, and a protective cover for protecting the illuminator is arranged above the illuminator.
Preferably, the derailment prevention device comprises a limiting plate arranged at the lower part of the vehicle body, and a groove matched with the guide rail is formed in the limiting plate.
More preferably, every group buffer include with the buffer swing arm bottom is connected at least one buffer, all the buffer all installs on the buffer support, the buffer support mounting is in on the automobile body, the telescopic link earrings of buffer with link to each other through joint bearing between the buffer swing arm, the buffer support with link to each other through pivot one between the support frame.
The invention has the beneficial effects that: according to the invention, the impact energy of the vertical rack after falling is greatly absorbed through the buffer mechanism, so that the safety of personnel and equipment is protected; the invention timely detects whether the erecting rack falls off through the detection unit so as to timely control the action of the retaining device and prevent the buffer trolley from returning, thereby protecting the safety of personnel and equipment; the invention prevents the buffer trolley from being impacted to separate from the track through the derailing prevention device, thereby protecting the safety of personnel and equipment.
Drawings
FIG. 1 is a front view of a buffering trolley for testing an electric cylinder according to the present invention;
FIG. 2 is a side view of a buffering trolley for testing an electric cylinder according to the present invention;
FIG. 3 is a schematic structural diagram of a buffer support of the buffer trolley for testing the electric cylinder.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1, 2 and 3, the embodiment discloses a buffer trolley for testing an electric cylinder, which comprises a trolley body 100, wherein four wheels on a guide rail are arranged at the bottom of the trolley body 100, a buffer mechanism for bearing the impact of a vertical rack and a detection unit for detecting whether the vertical rack falls off are arranged on the trolley body 100, at least two groups of buffer mechanisms are arranged, in order to meet the requirement of bearing the vertical rack, two groups of buffer mechanisms are preferably selected, two adjacent groups of buffer mechanisms are arranged side by side and connected through a cross beam 200, and each group of buffer mechanisms is provided with a detection unit;
the lower part of the vehicle body 100 is provided with a backstop device for preventing the vehicle body 100 from backing, the backstop device is also provided with two backstop devices corresponding to the two groups of buffer mechanisms and respectively arranged at two sides of the front end of the lower part of the vehicle body 100, the lower part of the vehicle body 100 is provided with an anti-derailment device for preventing the vehicle body 100 from derailing, the anti-derailment device is also provided with two backstop devices corresponding to the two groups of buffer mechanisms and respectively arranged at the rear end of the lower part of the vehicle body 100, the controller 300 receives signals transmitted by the two detection units to control the two backstop devices;
each group of buffer mechanisms comprises support frames 11 arranged on the vehicle body 100, two adjacent support frames 11 are connected through a cross beam 200, buffer swing arms 12 are arranged on the support frames 11, one ends of the buffer swing arms 12 are movably connected with the support frames 11, one ends of the buffer swing arms 12 are movably fixed with the support frames 11 through rotating shafts, detection units are arranged on the buffer swing arms 12, at least one group of buffer devices are arranged between the bottoms of the buffer swing arms 12 and the support frames 11, two groups of buffer devices are preferably arranged, limit support columns 13 are arranged on the support frames 11, buffer pads 131 are arranged at the tops of the limit support columns 13, after a vertical stand falls and impacts on the buffer swing arms 12, the buffer swing arms 12 slowly fall onto the limit support columns 13 under the action of the buffer devices, and the limit;
the anti-skid teeth 14 are arranged on the buffer swing arm 12, the rubber-lined roller 15 is arranged at the other end of the buffer swing arm 12, after the erecting rack falls and impacts the buffer swing arm 12, the rubber-lined roller 15 is used for contacting a face structure on the erecting rack, so that the stress condition between the erecting rack and the whole vehicle body 100 at the moment of collision is improved, and the anti-skid teeth 14 are used for contacting an angle structure on the erecting rack and simultaneously preventing the erecting rack from sliding on the buffer swing arm 12 in the collision process;
furthermore, the rubber lining roller 15 and the anti-skid teeth 14 are provided with cushion pads, so that the stress condition during collision is further improved;
each buffer device comprises at least one buffer 16 connected with the bottom of the buffer swing arm 12, preferably two buffers 16 are arranged, all the buffers 16 are mounted on a buffer support 17, the buffer support 17 is mounted on the vehicle body 100, telescopic rod earrings of the buffers 16 are connected with the buffer swing arm 12 through joint bearings, and the buffer support 17 is connected with the support frame 11 through a first rotating shaft;
in the buffering process, the two buffers 16 are compressed at the same time to relieve the impact force of impact, and the buffer support 17 swings around the first rotating shaft along with the descending of the buffering swing arm 12, so that the stress direction of the buffers 16 and the axial line of the buffers 16 are ensured to be in the same direction, the performance of the buffers 16 can be exerted to the maximum extent, and the buffers 16 are prevented from being damaged due to radial component force;
the total energy E ═ E to be absorbed by the damper 161+E2，E1For erecting the falling kinetic energy of the rack, E2The dead weight energy of the erecting rack is obtained;
E1MgH is the falling height of the falling end of the erecting rack;
the impact speed of the falling end of the erecting rack is as follows:
the buffer 16 has a buffer speed of: v. of2＝v1r2/r1；
The equivalent mass of the erecting rack is as follows:
the horizontal direction component of the impact force generated by the falling of the erecting rack to the vehicle body 300 is: f1＝F·sin(θ)＝MeG.sin (theta), theta is an included angle between the vertical stand and the horizontal direction at the moment of impact;
through calculation, the vehicle body 300 can be subjected to impact force in the horizontal direction, so that the vehicle body 300 needs to be fixed when working, and the locking of the vehicle body 300 and a track is realized by adopting a backstop device and an anti-derailment device when buffering;
further, the bumper support 17 is a hollow cuboid and is internally provided with a reinforcing plate 171, the bottom of the bumper support 17 is provided with a reinforcing rib 172, two sides of the bumper support 17 are provided with mounting surfaces 173, each mounting surface 173 is provided with a first mounting hole 174, the bumper support 17 is movably connected with the support frame 11 through the first mounting holes 174 and the first rotating shaft on the two sides, the upper end and the lower end of each mounting surface 173 are respectively provided with two clamping blocks 175, the bumper is matched with a groove on the bumper 16 through the two clamping blocks 175 during mounting, the mounting surface 173 on one side of each clamping block 175 is provided with a second mounting hole 176, and the bumper 16 and the bumper support 17 are fixed through the second mounting hole 176;
each detection unit comprises a light curtain component arranged on the buffer swing arm 12, the light curtain component consists of a light emitter 21 and a light receiver 22, the light emitter 21 is arranged at one end, far away from the fixed point, of the buffer swing arm 12, the light receiver 22 is arranged at one end, close to the fixed point, of the buffer swing arm 12, the light emitter 21 consists of a row of L ED infrared light sources, the light receiver 22 consists of a row of PSD photoelectric detectors, the light blocking effective output signal is a 24V high-level signal, and a light curtain is formed above the buffer swing arm 12 through the light emitter 21 and the light receiver 22;
the illuminator 21 is installed on one end far away from the fixed point of the buffer swing arm 12 through the mounting bracket 23, the mounting bracket 23 is connected with the buffer swing arm 12 through a roller and a spring, and a protective cover which is installed on the mounting bracket 23 and used for protecting the illuminator 21 is arranged above the illuminator 21; when the mounting bracket 23 is impacted, the mounting bracket can rotate around the roller to reduce the impact force, so that the illuminator 21 is protected, and after the external force is removed, the mounting bracket 23 is restored to the original position through the spring and the illuminator 21 is further protected through the protective cover above the illuminator 21;
each backstop device comprises a backstop rack 31 arranged on the ground, a pawl 32 movably arranged on the vehicle body 100, an electromagnet 33 arranged on the vehicle body 100 and used for controlling the pawl 32 to extend out to be clamped into the backstop rack 31 and retract to leave the backstop rack 31, and a spring 34 used for driving the pawl 32 to retract to leave the backstop rack, wherein the backstop rack 31 is arranged in parallel with a trolley walking guide rail, the spring 34 is arranged between the electromagnet 33 and the pawl 32, and the backstop rack 31 is arranged in parallel with the trolley walking guide rail; when the vertical rack falls, the controller 300 receives an output signal from the light curtain assembly, when a 24V high level signal is received, the electromagnet 33 is controlled to be powered on, so that the pawl 32 is attracted by the electromagnet 33 to extend out and be clamped into the retaining rack 31, the vehicle body 100 is prevented from backing, when a low level signal is received, namely the signal is invalid, the controller cuts off the power supply of the electromagnet 33, the electromagnet 33 loses the attraction, the pawl 32 is driven to retract away from the retaining rack 31 under the action of the spring 34, the friction between the pawl 32 and the retaining rack 31 is avoided, and the vehicle body 100 is convenient to back;
each anti-derailing device comprises two limiting plates 41 arranged at the lower part of the vehicle body 100, the two limiting plates 41 are preferably arranged and are respectively arranged at the lower part of the front end and the lower part of the rear end of the vehicle body 100, a groove 42 matched with the guide rail is formed in each limiting plate 41, each groove 42 is formed in the lower part of each limiting plate 41, and when the vehicle body 100 is impacted, the limiting plates 41 can be stressed and tightly clamp the rail through the grooves 42 to prevent the vehicle body 100 from derailing;
the response time T of the whole system is determined by the installation height h of the light curtain component and the suction time T of the electromagnet 331Control signal transmission time t2Response time t of light curtain component3And the response time t of the controller 3004And (4) jointly determining.
Assuming that the time taken for the erecting rack to contact the buffer swing arm 12 from the moment of cutting off the light curtain assembly is Δ t, the whole design needs to be guaranteed:
Δt≥t1+t2+t3+t4
namely, before the vertical stand collides with the buffer swing arm 12, the pawl 32 of the retaining device is completely clamped into the retaining rack 31 and is meshed with the retaining rack 31, so that the trolley is prevented from being horizontally punched out.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. The utility model provides an electronic cylinder test is with buffering dolly which characterized in that: the device comprises a vehicle body, wherein a buffer mechanism for bearing the impact of a vertical rack and a detection unit for detecting whether the vertical rack falls are arranged on the vehicle body, a backstop device for preventing the vehicle body from backing is arranged at the lower part of the vehicle body, an anti-derailing device for preventing the vehicle body from derailing is arranged at the lower part of the vehicle body, and a controller receives a signal transmitted by the detection unit to control the action of the backstop device;
the buffer mechanism comprises a support frame arranged on the vehicle body, a buffer swing arm is arranged on the support frame, one end of the buffer swing arm is movably connected with the support frame through a rotating shaft, the detection unit is arranged on the buffer swing arm, at least one group of buffer devices are arranged between the bottom of the buffer swing arm and the support frame, a limiting support column is arranged on the support frame, and a buffer cushion is arranged at the top of the limiting support column;
stopping device is including installing subaerial stopping rack, movable mounting pawl on the automobile body, installing be used for on the automobile body control pawl to stretch out the card and go into stopping rack and withdrawal leave the electro-magnet of stopping rack and being used for driving the pawl withdrawal leaves the spring of stopping rack, the spring sets up the electro-magnet with between the pawl.
2. The buffering trolley for the electric cylinder test as claimed in claim 1, wherein at least two groups of the buffering mechanisms are provided, and two adjacent groups of the buffering mechanisms are connected through a cross beam.
3. The buffering trolley for the electric cylinder test as claimed in claim 1, wherein the buffering swing arm is provided with anti-slip teeth, and the other end of the buffering swing arm is provided with a rubber-lined roller.
4. The buffer trolley for the electric cylinder test as claimed in claim 1, wherein the detection unit comprises a light curtain component arranged on the buffer swing arm, and the light curtain component comprises a light emitter and a light receiver.
5. The buffering trolley for the electric cylinder test as claimed in claim 4, wherein the light emitter is mounted at one end of the buffering swing arm far from the fixed point, and the light receiver is mounted at one end of the buffering swing arm near to the fixed point.
6. The buffer trolley for the electric cylinder test as claimed in claim 4, wherein the light emitter is mounted on one end of the buffer swing arm far away from the fixed point through a mounting bracket; the mounting bracket is connected with the buffer swing arm through a roller and a spring, and a protective cover for protecting the illuminator is arranged above the illuminator.
7. The buffering trolley for the electric cylinder test as claimed in claim 1, wherein the derailment prevention device comprises a limiting plate mounted at a lower part of the trolley body, and a groove matched with the guide rail is formed in the limiting plate.
8. The buffering trolley for the electric cylinder test as claimed in claim 1, wherein each group of the buffering devices comprises at least one buffer connected with the bottom of the buffering swing arm, all the buffers are mounted on a buffer support, the buffer support is mounted on the vehicle body, a telescopic rod ear ring of the buffer is connected with the buffering swing arm through a joint bearing, and the buffer support is connected with the supporting frame through a first rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314171.XA CN108731959B (en) | 2018-04-10 | 2018-04-10 | Buffering trolley for testing electric cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314171.XA CN108731959B (en) | 2018-04-10 | 2018-04-10 | Buffering trolley for testing electric cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108731959A CN108731959A (en) | 2018-11-02 |
| CN108731959B true CN108731959B (en) | 2020-08-07 |
Family
ID=63941272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810314171.XA Active CN108731959B (en) | 2018-04-10 | 2018-04-10 | Buffering trolley for testing electric cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108731959B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015651A (en) * | 2014-05-12 | 2014-09-03 | 北京航天发射技术研究所 | Protective device adaptive to rotating and erected rack |
| CN106323665A (en) * | 2016-10-11 | 2017-01-11 | 南京航空航天大学 | Electric cylinder performance testing system |
| CN106372355A (en) * | 2016-09-14 | 2017-02-01 | 北京航空航天大学 | Universal erection load simulation device |
| CN107555314A (en) * | 2017-08-24 | 2018-01-09 | 芜湖市长江起重设备制造有限公司 | A kind of dolly limit damper of bridge crane |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0742070B2 (en) * | 1987-06-16 | 1995-05-10 | 三菱電機株式会社 | Escalator spindle brake device |
| EP3045419A1 (en) * | 2015-01-15 | 2016-07-20 | Siemens Aktiengesellschaft | Safety brake for a lifting device |
-
2018
- 2018-04-10 CN CN201810314171.XA patent/CN108731959B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015651A (en) * | 2014-05-12 | 2014-09-03 | 北京航天发射技术研究所 | Protective device adaptive to rotating and erected rack |
| CN106372355A (en) * | 2016-09-14 | 2017-02-01 | 北京航空航天大学 | Universal erection load simulation device |
| CN106323665A (en) * | 2016-10-11 | 2017-01-11 | 南京航空航天大学 | Electric cylinder performance testing system |
| CN107555314A (en) * | 2017-08-24 | 2018-01-09 | 芜湖市长江起重设备制造有限公司 | A kind of dolly limit damper of bridge crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108731959A (en) | 2018-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5307104B2 (en) | Connecting device | |
| CN210884787U (en) | Fall protection structure for safety component of van elevator | |
| CN108312994B (en) | Anti-collision device at tail of large-sized freight vehicle | |
| CN111845828B (en) | Suspension type permanent magnetism suspension train bogie | |
| CN115791140B (en) | Pressure detection device is used in processing of automobile shock absorber ware | |
| CN112389312A (en) | Anti-collision safety protection device for pipeline transportation | |
| CN108731959B (en) | Buffering trolley for testing electric cylinder | |
| CN111546380B (en) | Underground pipe gallery comprehensive inspection vehicle | |
| CN114275004A (en) | Contact type obstacle and derailment detection device | |
| CN103787047B (en) | There is the belt break protection device of deceleration | |
| CN110901686B (en) | Anti-sliding device | |
| CN108692964B (en) | Braking device of buffering trolley for testing electric cylinder | |
| CN217024964U (en) | Car elevator is with taking crashproof stop device of layer door of buffering and car elevator | |
| CN108731946B (en) | Front offset crash test system and method | |
| CN114604722A (en) | Car elevator is with taking crashproof stop device of layer door of buffering and car elevator | |
| CN114634111A (en) | Gantry crane protection device | |
| CN101592207A (en) | A kind of variable resistance dissipative energy absorber | |
| CN212022628U (en) | Dual-redundancy train obstacle and derailment detection device | |
| CN109866728A (en) | It is a kind of to reduce the automobile buffer beam for hitting kinetic energy | |
| CN112644552A (en) | Magnetic attraction type rail vehicle overturn prevention device | |
| CN217033036U (en) | Speed reducing mechanism for collision test system | |
| CN214450996U (en) | Ejection device of nano energy-absorbing car arrester | |
| CN220706764U (en) | Umbrella-shaped crawling robot in pipe | |
| CN210780392U (en) | Special heavy-load servo electric cylinder for self-balancing control platform | |
| CN219237035U (en) | Mine man driving buffering traction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |