CN108132151B - A kind of engine quick-assembling trolley hold-down mechanism - Google Patents
A kind of engine quick-assembling trolley hold-down mechanism Download PDFInfo
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- CN108132151B CN108132151B CN201711372671.0A CN201711372671A CN108132151B CN 108132151 B CN108132151 B CN 108132151B CN 201711372671 A CN201711372671 A CN 201711372671A CN 108132151 B CN108132151 B CN 108132151B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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Abstract
The invention belongs to vehicle detection apparatus fields, specifically disclose a kind of engine quick-assembling trolley hold-down mechanism, including mounting base, are equipped with four groups above mounting base and hold down assembly, hold down assembly including rotating wheel, transmission belt and weight, rotating wheel is connected with hydraulic rotating oil cylinder；Weight stop mechanism is additionally provided in mounting base, weight stop mechanism includes slide mass and the pawl that is hinged at weight axle center, slide mass includes the spur rack and ratchet bar being fixedly connected, ratchet bar is engaged with pawl, the spur rack is slidably connected in mounting base, first rotating shaft and the second shaft are rotatably connected in the rack, rotating wheel is set in first rotating shaft, and the first unilateral bearing is equipped between rotating wheel and first rotating shaft, gear is arranged with outside second shaft, and the second unilateral bearing is equipped between the gear and the second shaft, spur rack is engaged with gear, first rotating shaft and the second shaft are around with belt.Clamping force size can freely be adjusted using the present invention.
Description
Technical field
The present invention relates to vehicle detection apparatus fields, and in particular to a kind of engine quick-assembling trolley hold-down mechanism.
Background technique
Engine quick-assembling trolley is used for the performance test of each h type engine h, engine is mounted on quick-assembling trolley, then
Connecting dynamometer machine just can detect engine.
After engine quick-assembling trolley is mobile in place, Manual heavy-duty quick-speed jigs are generallyd use at present and compress small car body,
Manual heavy-duty quick-speed jigs are distributed on four angles of trolley.But current Manual heavy-duty quick-speed jigs are to the clamping force of small car body
It is fixed and invariable, clamping force size cannot be adjusted.
Summary of the invention
The purpose of the present invention is to provide a kind of engine quick-assembling trolley hold-down mechanisms, and it is big can freely to adjust clamping force
It is small.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of engine quick-assembling trolley hold-down mechanism, including mounting base, the mounting base top are equipped with four groups and hold down assembly,
Described to hold down assembly including rotating wheel, transmission belt and weight, the weight is cylindrical, and described transmission belt one end is fixed on installation
On seat, the other end fix and be wrapped on rotating wheel, and the transmission belt is wound in the weight outer circle, and the rotating wheel is connected with
Hydraulic rotating oil cylinder；It is additionally provided with weight stop mechanism in the mounting base, the weight stop mechanism includes slide mass and hinged
Pawl at weight axle center, is connected with elastic component between the slide mass and mounting base, the slide mass includes being fixedly connected
Spur rack and ratchet bar, the ratchet bar are engaged with pawl, and the spur rack is slidably connected in mounting base, in the mounting base
It is also rotatably connected to first rotating shaft and the second shaft, rotating wheel is set in first rotating shaft, and between rotating wheel and first rotating shaft
Equipped with the first unilateral bearing, the first unilateral bearing is in locking state when the rotating wheel rotates forward, and is arranged outside second shaft
There is gear, and be equipped with the second unilateral bearing between the gear and the second shaft, when the gear inverts at the second unilateral bearing
In locking state, the spur rack is engaged with gear, and the first rotating shaft and the second shaft are around with belt.
The working principle of this programme is:
Four groups hold down assembly and can compress to four angles of quick-assembling trolley, holds down assembly, and hydraulic rotating oil cylinder is used for
Drive rotating wheel rotation, when rotating wheel rotates, drive transmission belt one end to collapse, weight is made to generate displacement in the vertical direction, weight
Hammer compresses quick-assembling trolley using the gravity of weight itself, weight vertical motion can be adjusted for contacting quick-assembling trolley
Pressing force of the weight to quick-assembling trolley.
Since external forces may be applied on weight, to make weight play in the vertical direction, weight is to fast
The pressing force of dress trolley also changes therewith, and weight stop mechanism is for preventing weight from generating play in the vertical direction.
When weight moves straight down, rotating wheel is rotated forward, but due to the presence of the first unilateral bearing, first rotating shaft is kept
Static, toothed belt, gear, spur rack and ratchet bar are remain stationary, and the pawl on weight slips on ratchet bar surface, work as weight
Behind the position for reaching needs, ratchet bar blocks pawl, to make weight in the vertical direction cannot upward play.
When weight moves straight up, rotating wheel reversion drives first rotating shaft rotation, and first rotating shaft is driven by belt
The rotation of second shaft, the rotation of second turn of shaft driven gear, since spur rack is engaged with gear, gear drive spur rack away from
The direction of weight moves, and the ratchet bar being fixedly connected with spur rack is also moved away from the direction of weight therewith, make pawl with
Ratchet bar is detached from, and ratchet bar disappears to the active force that pawl blocks, and weight moves upward to the position of needs under transmission belt effect
It sets, then hydraulic rotating oil cylinder stops working, and rotating wheel, first rotating shaft and gear stop operating, and spur rack is acted in elastic component
Under towards close to weight direction move reset, engage ratchet bar again with pawl, will not be altered upwards after weight stop motion
Dynamic, band moving gear inverts when spur rack movement resets, since, there are the second unilateral bearing, gear is anti-between gear and the second shaft
Turn not will drive the reversion of the second shaft, so that the second shaft is remain stationary when gear inverts, belt and first rotating shaft also keep quiet
Only, weight is also remain stationary.
Following technical effect can be reached using this programme:
1, quick-assembling trolley is compressed using the gravity of weight itself, and drives weight in vertical side by transmission belt
Displacement is generated upwards, and weight is made to generate variation to the pressing force of quick-assembling trolley；
2, pawl is blocked by ratchet bar, the upward play of weight can be prevented, to ensure that weight to quick-assembling trolley
Pressing force keeps stablizing；
3, by the first unilateral bearing of setting and the second unilateral bearing, when weight moves downward, ratchet bar is able to maintain quiet
Only, pawl is enable smoothly to be blocked by ratchet bar, when weight moves upwards, ratchet bar can be detached from pawl, enable weight
It smoothly moves upwards, after weight moves to predeterminated position, ratchet bar can automatically reset under elastic component effect, make pawl again
It is blocked by ratchet bar；
4, hydraulic rotating oil cylinder can rotate different angle, meet multiple parked positions of weight movement, i.e. adjusting weight
To the different pressing forces of quick-assembling trolley.
Further, weight guiding mechanism is additionally provided in mounting base.Weight guiding mechanism is used in weight vertical motion pair
Weight plays guiding role, prevents weight lateral shift from pawl and ratchet bar being caused to be detached from.
Further, weight guiding mechanism includes the sliding rail being vertically installed in mounting base, and weight is slidably arranged in sliding rail.
When weight vertical motion, central axis moves in sliding rail, can prevent weight lateral shift.
Further, transmission belt lower end surface is equipped with reinforcing member.Since weight gravity itself is larger, reinforcing member can guarantee belt energy
Enough pull weight and itself is not destroyed.
Further, reinforcing member includes several wirerope being affixed on transmission belt lower end surface.Wirerope can bear biggish
Gravity, and wirerope can move together with the movement of transmission belt, when transmission belt pulls weight movement, the gravity of weight is main
It is undertaken by wirerope, avoids transmission belt and be deformed even destruction.
Further, the annular groove being caught in for wirerope is offered on weight.Wirerope is caught in annular groove, and wirerope is being transported
When dynamic, weight vertical motion can be made more steady, avoid wirerope in weight outer circle along weight axial float.
Detailed description of the invention
Fig. 1 is the top view of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram to hold down assembly in Fig. 1.
Specific embodiment
Below by the further details of explanation of specific embodiment:
Appended drawing reference in Figure of description include: mounting base 1, the 100, weight 2 that holds down assembly, pawl 21, central axis 22,
Quick-assembling trolley 3, ratchet bar 4, spur rack 5, slide mass 45, gear 6, the second shaft 7, rotating wheel 8, first rotating shaft 9, belt 10,
Transmission belt 11, spring 12.
As depicted in figs. 1 and 2, the engine quick-assembling trolley hold-down mechanism of the present embodiment, including mounting base 1, in mounting base 1
Side is equipped with four groups and holds down assembly 100, compresses to four angles of quick-assembling trolley 3, every group hold down assembly in include rotating wheel
8, transmission belt 11 and weight 2, weight 2 is cylindrical, and 11 right end of transmission belt is fixed in mounting base 1, left end is fixed and is wrapped in
On rotating wheel 8, and transmission belt 11 is wound in 2 outer circle of weight, and rotating wheel 8 is connected with hydraulic rotating oil cylinder, for driving 8 turns of rotating wheel
It is dynamic.
Since external forces may be applied on weight 2, leads to the upward play of weight 2, be additionally provided with weight in mounting base 1
Stop mechanism is for preventing the upward play of weight 2.Weight stop mechanism includes slide mass 45 and pawl 21, and running through in weight 2 has
A piece central axis 22, central axis 22 and weight 2 are integrally formed, and pawl 21 is rotatably connected on central axis 22, slide mass 45 and peace
It is connected with spring 12 between dress seat 1 to reset for slide mass 45, slide mass 45 includes integrally formed spur rack 5 and ratchet bar 4, spine
Rack gear 4 is engaged with pawl 21, and spur rack 5 is slidably arranged in mounting base 1.9 He of first rotating shaft is also rotatably connected in mounting base 1
Second shaft 7, rotating wheel 8 are set in first rotating shaft 9, and the first unilateral bearing is equipped between rotating wheel 8 and first rotating shaft 9,
It is arranged with gear 6 outside second shaft 7, and is equipped with the second unilateral bearing, spur rack 5 and gear 6 between gear 6 and the second shaft 7
Engagement, first rotating shaft 9 and the second shaft 7 are around with belt 10.
Weight guiding mechanism is additionally provided in mounting base 1, for preventing 2 lateral shift of weight, weight guiding mechanism includes perpendicular
The sliding rail being directly mounted in mounting base 1, central axis 22 are slidably arranged in sliding rail.
11 lower end surface of transmission belt is equipped with reinforcing member, and reinforcing member includes the more wirerope being affixed on 11 lower end surface of transmission belt,
The annular groove being caught in for wirerope is offered on weight 2.
When specific operation, quick-assembling trolley 3 is first moved to four weights, 2 lower section, starts hydraulic rotating oil cylinder, hydraulic rotating
Oil cylinder drives rotating wheel 8 to turn to predeterminated position, and four weights 2 are pressed on respectively on four angles of quick-assembling trolley 3.When need by
When weight 2 tunes up the pressing force of quick-assembling trolley 3, hydraulic rotating oil cylinder is made to rotate forward certain angle, rotating wheel 8 is driven to rotate forward, but
Due to the presence of the first unilateral bearing, the first unilateral bearing is in locking state at this time, and first rotating shaft 9 is remain stationary, belt 10,
Second shaft 7, gear 6, spur rack 5 and ratchet bar 4 are remain stationary, and the pawl 21 on weight 2 slips on 4 surface of ratchet bar,
After weight 2 reaches the position of needs, hydraulic rotating oil cylinder stops working, and ratchet bar 4 blocks pawl 21, to make weight 2 not
The upward play of energy, weight 2 keep stablizing to the pressing force of quick-assembling trolley 3.When needing the pressing force by weight 2 to quick-assembling trolley 3
When turning down, hydraulic rotating oil cylinder inverts certain angle, and rotating wheel 8 is driven to invert, and the first unilateral bearing is in and is freely rotated at this time
State, rotating wheel 8 drive first rotating shaft 9 to rotate, and first rotating shaft 9 drives the rotation of the second shaft 7, the second shaft 7 by belt 10
Band moving gear 6 rotates, and since spur rack 5 is engaged with gear 6, gear 6 drives spur rack 5 to move away from the direction of weight 2,
Fixed ratchet bar 4 is also moved away from the direction of weight 2 therewith with spur rack 5, and pawl 21 and ratchet bar 4 are detached from, ratchet
Item 4 disappears to the active force that pawl 21 blocks, and weight 2 moves upward to the position of needs under the effect of transmission belt 11, then liquid
Pressure rotary oil cylinder stops working, and rotating wheel 8, first rotating shaft 9, gear 6, the second shaft 7 and gear 6 stop operating, spur rack 5
It moves and resets towards the direction close to weight 2 under the effect of spring 12, engage ratchet bar 4 again with pawl 21, weight 2 stops
After movement will not upward play, spur rack 5 movement band moving gear 6 invert, since there are second between gear 6 and the second shaft 7
Unilateral bearing, the second unilateral bearing is in locking state at this time, and the reversion of gear 6 not will drive the reversion of the second shaft 7, thus gear
The second shaft 7 is remain stationary when 6 reversion, and belt 10, first rotating shaft 9 and transmission belt 11 are also remain stationary, and weight 2 is also remain stationary
And cannot upward play, weight 2 keeps stablizing to the pressing force of quick-assembling trolley 3.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (6)
1. a kind of engine quick-assembling trolley hold-down mechanism, including mounting base, it is characterised in that: be equipped with four groups above the mounting base
It holds down assembly, described to hold down assembly including rotating wheel, transmission belt and weight, the weight is cylindrical, described transmission belt one end
Be fixed in mounting base, the other end is fixed and is wrapped on rotating wheel, and the transmission belt is wound in the weight outer circle, described
Rotating wheel is connected with hydraulic rotating oil cylinder；Weight stop mechanism is additionally provided in the mounting base, the weight stop mechanism includes sliding
Kinetoplast and the pawl being hinged at weight axle center, are connected with elastic component, the slide mass includes between the slide mass and mounting base
The spur rack and ratchet bar being fixedly connected, the ratchet bar are engaged with pawl, and the spur rack is slidably connected in mounting base, institute
It states and is also rotatably connected to first rotating shaft and the second shaft in mounting base, rotating wheel is set in first rotating shaft, and rotating wheel and
The first unilateral bearing is equipped between one shaft, the first unilateral bearing is in locking state when the rotating wheel rotates forward, and described second
It is arranged with gear outside shaft, and is equipped with the second unilateral bearing between the gear and the second shaft, second when the gear inverts
Unilateral bearing is in locking state, and the spur rack is engaged with gear, and the first rotating shaft and the second shaft are around with belt.
2. a kind of engine quick-assembling trolley hold-down mechanism according to claim 1, it is characterised in that: in the mounting base also
Equipped with weight guiding mechanism.
3. a kind of engine quick-assembling trolley hold-down mechanism according to claim 2, it is characterised in that: the weight Guiding machine
Structure includes the sliding rail being vertically installed in mounting base, and weight is slidably arranged in sliding rail.
4. a kind of engine quick-assembling trolley hold-down mechanism according to claim 3, it is characterised in that: the transmission belt lower end
Face is equipped with reinforcing member.
5. a kind of engine quick-assembling trolley hold-down mechanism according to claim 4, it is characterised in that: the reinforcing member includes
Several are affixed on the wirerope on transmission belt lower end surface.
6. a kind of engine quick-assembling trolley hold-down mechanism according to claim 5, it is characterised in that: opened up on the weight
There is the annular groove being caught in for wirerope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372671.0A CN108132151B (en) | 2017-12-18 | 2017-12-18 | A kind of engine quick-assembling trolley hold-down mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372671.0A CN108132151B (en) | 2017-12-18 | 2017-12-18 | A kind of engine quick-assembling trolley hold-down mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108132151A CN108132151A (en) | 2018-06-08 |
| CN108132151B true CN108132151B (en) | 2019-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711372671.0A Active CN108132151B (en) | 2017-12-18 | 2017-12-18 | A kind of engine quick-assembling trolley hold-down mechanism |
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| Country | Link |
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| CN (1) | CN108132151B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790093B (en) * | 2019-09-24 | 2021-05-18 | 中航光电科技股份有限公司 | Cable telescoping device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101583812B (en) * | 2007-01-26 | 2011-12-28 | 博格华纳公司 | sliding rack ratchet tensioner |
| CN201903450U (en) * | 2010-12-15 | 2011-07-20 | 上海宝钢设备检修有限公司 | Connecting and fixing device for power testing of engine |
| CN202070923U (en) * | 2011-02-25 | 2011-12-14 | 天津聚贤投资有限公司 | Steel tube clamping mechanism |
| CN202462045U (en) * | 2012-01-31 | 2012-10-03 | 张秋平 | Force-increasing pressing plate |
| CN102645338B (en) * | 2012-05-11 | 2014-06-25 | 安徽江淮汽车股份有限公司 | Engine test rack device |
| CN206311340U (en) * | 2016-12-05 | 2017-07-07 | 上海汽车集团股份有限公司 | Engine quick-assembling stand dolly |
-
2017
- 2017-12-18 CN CN201711372671.0A patent/CN108132151B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108132151A (en) | 2018-06-08 |
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Effective date of registration: 20200402 Address after: Room 1,020, Nanxun Science and Technology Pioneering Park, No. 666 Chaoyang Road, Nanxun District, Huzhou City, Zhejiang Province, 313000 Patentee after: Huzhou You Yan Intellectual Property Service Co.,Ltd. Address before: 400000 Chongqing Jiulongpo District, Chongqing New Road No. 176, No. 5 negative layer Patentee before: CHONGQING HOUQUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20200605 Address after: Room 501, office building, market supervision and Administration Bureau, Langchuan Avenue, Jianping Town, Langxi County, Xuancheng City, Anhui Province, 230000 Patentee after: Langxi pinxu Technology Development Co., Ltd Address before: Room 1,020, Nanxun Science and Technology Pioneering Park, No. 666 Chaoyang Road, Nanxun District, Huzhou City, Zhejiang Province, 313000 Patentee before: Huzhou You Yan Intellectual Property Service Co.,Ltd. |
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