CN103257012A - Vehicle wheel dragging torque auxiliary measuring device - Google Patents
Vehicle wheel dragging torque auxiliary measuring device Download PDFInfo
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- CN103257012A CN103257012A CN2013100559675A CN201310055967A CN103257012A CN 103257012 A CN103257012 A CN 103257012A CN 2013100559675 A CN2013100559675 A CN 2013100559675A CN 201310055967 A CN201310055967 A CN 201310055967A CN 103257012 A CN103257012 A CN 103257012A
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Abstract
The invention discloses a vehicle wheel dragging torque auxiliary measuring device. The vehicle wheel dragging torque auxiliary measuring device is not only capable of achieving detection of dragging torque of a vehicle wheel independently, but also low in production cost, good in generality, and suitable for being applied to vehicle wheels of different types. The vehicle wheel dragging torque auxiliary measuring device comprises a bearing block and a plurality of bearing sleeves, a connector used for being matched with a torque wrench is arranged in the middle of one end face of the bearing block, a plurality of connecting sleeves extending outward are arranged on the side face of the bearing block, at least one end of each bearing sleeve is provided with an opening, and a connecting rod is arranged on each bearing sleeve. Each connecting rod is arranged inside each connecting sleeve in an inserting mode, and the bearing sleeves are perpendicular to the connecting sleeves. Fastening bolts used for fixing the connecting rods are arranged on the connecting sleeves.
Description
Technical field
The present invention relates to automobile and drag the moment field tests, be specifically related to a kind of wheel that drags moment for the subsidiary wheel and drag the moment aided measurement device.
Background technology
Along with the raising that modern vehicle requires for oil consumption, dragging moment in the design of car load has become an important parameters index.Drag at car load that the moment that drags at wheel place accounts for larger specific gravity in the moment, the wheel place drags the dragging and the counter-rotating of driving shaft etc. of friction, braking executive device that moment comprises hub bearing; Thereby the measurement that drags moment at wheel place also just seems particularly important with analysis.For example, Chinese patent publication number CN101858804A, in open day on October 13rd, 2010, the name of innovation and creation is called a kind of road test brake dragging moment measuring equipment, and this application case comprises: pedestal is furnished with horizontal slide rail on the pedestal; Hoistable platform is placed on the horizontal slide rail, moves horizontally along horizontal slide rail, and hoistable platform comprises the elevating mechanism that in the vertical direction moves; Motor is placed on the hoistable platform; Torque sensor is connected on the motor by speed reduction unit; Jockey, jockey are connected to vehicle to be tested, and jockey also is connected to torque sensor by universal joint; Control system is electrically connected to motor, the operation of control motor; By data acquisition system (DAS), move under different conditions according to control system control motor, gather the data of torque sensor; And then to road test brake dragging moment data.Though this application case can be gathered the moment that drags of vehicle road test, its equipment complexity, cost of manufacture height; And versatility is not good.
Summary of the invention
The objective of the invention is in order to overcome deficiency of the prior art, provide a kind of and not only can realize the independent detection that drags moment to the wheel place; And production cost is low, and versatility is good, can be applicable to that the wheel that the wheel in various different models uses drags the moment aided measurement device.
Technical scheme of the present invention is:
A kind of wheel drags the moment aided measurement device, comprise carrier block and some carrying sleeves, described carrier block one end face middle part is provided with the connector that matches for torque spanner, the side of carrier block is provided with some outward extending adapter sleeves, have an end opening at least on the described carrying sleeve, and the carrying sleeve is provided with connecting link; This connecting link is plugged in the adapter sleeve, and described carrying sleeve is vertical mutually with adapter sleeve; Described adapter sleeve is provided with the fastening bolt for fixed connecting rod.
The carrying jacket casing of this programme device matches with the clamping screw of wheel, on the bolt head that is set in the wheel clamping screw with each carrying sleeve correspondence when reality is used; And because connecting link is plugged in the adapter sleeve, can make this programme device go for using at the different wheel of wheel clamping screw reference circle size by the length that the adjusting connecting link stretches out, versatility is good.
When the measurement wheel set drags moment, utilize lifting jack with wheel jack-up; Then wheel being dragged the moment aided measurement device is installed on the clamping screw of wheel; Then the dop with torque spanner is connected on the connector; Last rotary torsion spanner drags the moment aided measurement device by wheel and drives the wheel rotation, drags moment thereby record wheel set by torque spanner.
As preferably, it is cylindric that carrier block is, and the side of carrier block is provided with the annular link slot with the carrier block axis coaxle; Be provided with the ring-shaped air chamber of depression on this annular link slot near the side of connector, and the relative two sides of this ring-shaped air chamber are the face of cylinder; Being provided with in the described ring-shaped air chamber can be along the axially movable annular pressure strip of carrier block, and is equipped with grommet type seals on the inside and outside two sides of annular pressure strip; Described connector end face is provided with the circular connecting hole with the carrier block axis coaxle, the bottom of this connecting hole is provided with the air guide channel that is connected with ring-shaped air chamber, and the port that is communicated with ring-shaped air chamber on this air guide channel is arranged on the ring-shaped air chamber inwall relative with annular pressure strip; Being provided with in the connecting hole can be around the inlet suction port of connecting hole axis rotation; One end opening of described adapter sleeve, other end sealing; The fixing compact heap that is provided with on the blind end of each adapter sleeve, this compact heap can be around being arranged in the annular link slot that annular link slot slides.
In general the quantity of the clamping screw of automotive wheel is 4 to 6; This programme device not only goes for using at the different wheel of wheel nut reference circle size; And go for using at the different wheel of various clamping screw quantity, have superior universal performance.
Because each adapter sleeve can rotate around annular link slot by compact heap, thereby the cover that when reality is used, can be rotationally connected according to the actual quantity of wheel lock screw, corresponding carrying jacket casing is located on the wheel clamping screw, and unnecessary carrying sleeve can be vacant; After the carrying jacket casing arranges on the wheel clamping screw, by external unit gases at high pressure are imported in the ring-shaped air chamber by inlet suction port and air guide channel, and then make annular pressure strip move axially and be pressed on the compact heap along carrier block; Each adapter sleeve is fixed on the carrier block, thereby this programme device goes for using at the different wheel of various clamping screw quantity, and easy to operate, reliable.
As preferably, the two sides that annular pressure strip is relative with compact heap are the toothed surface that cooperatively interacts, and each double wedge on the described toothed surface is circumferentially around the axis of carrier block and evenly distributes, and each double wedge is along the radially extension of carrier block; The ring-shaped air chamber inwall relative with annular pressure strip is provided with pilot hole, and this pilot hole extends axially along carrier block, and pilot hole is blind hole; Described annular pressure strip is provided with the guidepost corresponding with pilot hole.
Because the pilot hole that annular pressure strip is provided with on guidepost and the carrier block is complementary, and makes annular pressure strip to move axially along carrier block, but can not rotate around carrier block; Be the toothed surface that cooperatively interacts owing to the annular pressure strip two sides relative with compact heap simultaneously, and each double wedge is along the radially extension of carrier block; After annular pressure strip is pressed on the compact heap, be difficult to produce relative rotation between compact heap and the annular pressure strip; So just guarantee that adapter sleeve, carrying sleeve can not rotate around carrier block, carry out testing process smoothly in the actual detected process.
As preferably, connecting hole is shoulder hole, and the cross-sectional area of connecting hole is toward in by its openend and reduces trend; Connecting hole side near the connecting hole openend is provided with annular slot, and is provided with back-up ring in the annular slot; Described inlet suction port is cylindric, and the side of inlet suction port is provided with annular protrusion; Inlet suction port is arranged in the connecting hole, and annular protrusion is arranged between back-up ring and the connecting hole step surface.This programme structure is guaranteeing that inlet suction port can be when the connecting hole axis rotates, and it is spacing in connecting hole that inlet suction port is passed through back-up ring.
As preferably, an end opening of carrying sleeve, other end sealing, and the openend that respectively carries sleeve is towards the same side; Described connecting link is arranged on the blind end of carrying cover, and connecting link is the L font.
As preferably, each adapter sleeve is along the radially extension setting of carrier block, and the xsect of each adapter sleeve is rounded.
As preferably, carry sleeve along the setting that extends axially of carrier block.
The invention has the beneficial effects as follows: not only can realize the independent detection that drags moment to the wheel place; And can be applicable in various wheel clamping screw quantity differences and the different wheel of wheel clamping screw reference circle size and use to have superior universal performance.
Description of drawings
Fig. 1 is a kind of structural representation of the embodiment of the invention 1.
Fig. 2 is that the wheel among the embodiment 1 drags the moment aided measurement device and is applied in a kind of structural representation on the wheel.
Fig. 3 is a kind of structural representation of the embodiment of the invention 2.
Fig. 4 is a kind of structural representation of the annular pressure strip in the embodiment of the invention 2.
Among the figure: carrier block 1, connector 2, adapter sleeve 3, carrying sleeve 4, connecting link 5, fastening bolt 6, annular link slot 7, compact heap 8, ring-shaped air chamber 9, annular pressure strip 10, air guide channel 11, inlet suction port 12, annular protrusion 13, connecting hole 14, guidepost 15, toothed surface 16, hub for vehicle wheel 17.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
Embodiment 1: as shown in Figure 1, a kind of wheel drags the moment aided measurement device, comprises carrier block 1 and five carrying sleeves 4.Carrier block 1 is cylindric.Carrier block 1 one end faces middle part is provided with for the connector 2 that matches with torque spanner.The side of carrier block 1 is provided with some outward extending adapter sleeves 3, and each adapter sleeve 3 is along the radially extension setting of carrier block 1.The xsect of each adapter sleeve 3 is rounded.
One end opening of carrying sleeve 4, other end sealing, and the openend that respectively carries sleeve 4 is towards the same side.The end sealing of carrying sleeve 4 is provided with connecting link 5, and connecting link is the L font.This connecting link 5 is plugged in the adapter sleeve 3.Adapter sleeve 3 is provided with the fastening bolt 6 for fixed connecting rod.Each carries sleeve 4 along the setting that extends axially of carrier block 1.The carrying sleeve is vertical mutually with adapter sleeve.
As shown in Figure 1 and Figure 2, the wheel of present embodiment carrying sleeve 4 cover that drags the moment aided measurement device matches with the clamping screw of hub for vehicle wheel 17.On the bolt head with the clamping screw that is set in hub for vehicle wheel 17 of each carrying sleeve 4 correspondence when reality is used.Because connecting link 5 is plugged in the adapter sleeve 3, and fixing by fastening bolt 6; This length that makes connecting link 5 stretch out can be regulated, thereby this programme device goes for using at the different wheel of clamping screw reference circle size of hub for vehicle wheel.
When the measurement wheel set drags moment: at first utilize lifting jack with wheel jack-up; Then wheel being dragged the moment aided measurement device is installed on the fastening bolt of hub for vehicle wheel 17; Then the dop with torque spanner is connected on the connector; Last rotary torsion spanner drags the moment aided measurement device by wheel and drives the wheel rotation, drags moment thereby record wheel set by torque spanner.
Embodiment 2: all the other structures of present embodiment are with reference to embodiment 1, and its difference is:
As shown in Figure 3, the quantity of carrying sleeve 4 is six.The side of carrier block 1 is provided with the annular link slot 7 with the carrier block axis coaxle.Be provided with the ring-shaped air chamber 9 of depression on this annular link slot 7 near the side of connector 2, and the relative two sides of this ring-shaped air chamber are the face of cylinder.Being provided with in the ring-shaped air chamber 9 can be along carrier block 1 axially movable annular pressure strip 10.Be equipped with grommet type seals on the inside and outside two sides of annular pressure strip; Be be equipped with grommet type seals between the inside and outside two sides of annular pressure strip and the ring-shaped air chamber side, and this grommet type seals to be arranged on the annular pressure strip specifically.Ring-shaped air chamber 9 inwalls relative with annular pressure strip 10 are provided with pilot hole.This pilot hole extends axially along carrier block 1, and pilot hole is blind hole.Above-mentioned annular pressure strip 10 is provided with the guidepost corresponding with pilot hole 15.
As shown in Figure 3, Figure 4, an end opening of above-mentioned adapter sleeve 3, other end sealing.The fixing compact heap 8 that is provided with on the blind end of each adapter sleeve 3.This compact heap 8 can be around being arranged in the annular link slot 7 that annular link slot 7 slides.Annular pressure strip 10 and compact heap 8 relative two sides are the toothed surface 16 that cooperatively interacts.Each double wedge on the toothed surface 16 is circumferentially evenly distribution around the axis of carrier block, and each double wedge is along the radially extension of carrier block.When pressurizeing in the ring-shaped air chamber 9, annular pressure strip 10 is pressed on each compact heap 8, and each compact heap 8 is fixed on the carrier block 1.When in the ring-shaped air chamber during release, each compact heap can slide around annular link slot.
The aided measurement device of present embodiment can be regulated adapter sleeve 3 according to the actual quantity of the clamping screw of hub for vehicle wheel when reality is used, the cover 3 that namely is rotationally connected makes and respectively carries on the clamping screw that sleeve 4 is set in corresponding hub for vehicle wheel, and unnecessary carrying sleeve can be vacant.After carrying sleeve 4 overlaps on the clamping screw that hub for vehicle wheel is set, by external unit gases at high pressure are imported in the ring-shaped air chambers 9 by inlet suction port 14 and air guide channel 11, and then make annular pressure strip 10 move axially and be pressed on the compact heap 8 along carrier block; Each adapter sleeve is fixed on the carrier block, thereby this programme device goes for using at the different wheel of various clamping screw quantity.
Claims (8)
1. a wheel drags the moment aided measurement device, it is characterized in that, comprise carrier block (1) and some carrying sleeves (4), described carrier block one end face middle part is provided with for the connector that matches with torque spanner (2), the side of carrier block is provided with some outward extending adapter sleeves (3), have an end opening at least on described carrying cover (4) tube, and the carrying sleeve is provided with connecting link (5); This connecting link is plugged in the adapter sleeve (3), and described carrying sleeve (4) is vertical mutually with adapter sleeve (3); Described adapter sleeve is provided with the fastening bolt (6) for fixed connecting rod.
2. a kind of wheel according to claim 1 drags the moment aided measurement device, it is characterized in that, described carrier block (1) is cylindric, and the side of carrier block is provided with the annular link slot (7) with the carrier block axis coaxle; Be provided with the ring-shaped air chamber (9) of depression on this annular link slot near the side of connector (2), and the relative two sides of this ring-shaped air chamber are the face of cylinder; Being provided with in the described ring-shaped air chamber can be along the axially movable annular pressure strip of carrier block (1) (10), and is equipped with grommet type seals on the inside and outside two sides of annular pressure strip; Described connector (2) end face is provided with the circular connecting hole (14) with the carrier block axis coaxle, the bottom of this connecting hole is provided with the air guide channel (11) that is connected with ring-shaped air chamber, and the port that is communicated with ring-shaped air chamber (9) on this air guide channel is arranged on the ring-shaped air chamber inwall relative with annular pressure strip (10); Being provided with in the connecting hole (14) can be around the inlet suction port (12) of connecting hole axis rotation; One end opening of described adapter sleeve (3), other end sealing; The fixing compact heap (8) that is provided with on the blind end of each adapter sleeve, this compact heap can be around being arranged in the annular link slot that annular link slot slides.
3. a kind of wheel according to claim 2 drags the moment aided measurement device, it is characterized in that, the two sides that described annular pressure strip (10) is relative with compact heap (8) are the toothed surface (16) that cooperatively interacts, each double wedge on the described toothed surface is circumferentially evenly distribution around the axis of carrier block, and each double wedge is along the radially extension of carrier block; Ring-shaped air chamber (9) inwall relative with annular pressure strip (10) is provided with pilot hole, and this pilot hole extends axially along carrier block, and pilot hole is blind hole; Described annular pressure strip is provided with the guidepost corresponding with pilot hole (15).
4. drag the moment aided measurement device according to claim 2 or 3 described a kind of wheels, it is characterized in that described connecting hole (14) is shoulder hole, and the cross-sectional area of connecting hole is toward in by its openend and reduces trend; Connecting hole side near the connecting hole openend is provided with annular slot, and is provided with back-up ring in the annular slot; Described inlet suction port (12) is cylindric, and the side of inlet suction port is provided with annular protrusion (13); Inlet suction port is arranged in the connecting hole, and annular protrusion is arranged between back-up ring and the connecting hole step surface.
5. drag the moment aided measurement device according to claim 1 or 2 or 3 described a kind of wheels, it is characterized in that, an end opening of carrying sleeve (4), other end sealing, and the openend that respectively carries sleeve is towards the same side; Described connecting link (5) is arranged on the blind end of carrying cover, and connecting link is the L font.
6. drag the moment aided measurement device according to claim 2 or 3 described a kind of wheels, it is characterized in that, each adapter sleeve (3) is along the radially extension setting of carrier block, and the xsect of each adapter sleeve is rounded.
7. drag the moment aided measurement device according to claim 2 or 3 described a kind of wheels, it is characterized in that described carrying sleeve (4) is along the setting that extends axially of carrier block.
8. a kind of wheel according to claim 1 drags the moment aided measurement device, it is characterized in that, described carrier block is cylindric, and each adapter sleeve is along the radially extension setting of carrier block, and each carries sleeve along the setting that extends axially of carrier block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310055967.5A CN103257012B (en) | 2013-02-22 | 2013-02-22 | Vehicle wheel dragging torque auxiliary measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310055967.5A CN103257012B (en) | 2013-02-22 | 2013-02-22 | Vehicle wheel dragging torque auxiliary measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103257012A true CN103257012A (en) | 2013-08-21 |
| CN103257012B CN103257012B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310055967.5A Active CN103257012B (en) | 2013-02-22 | 2013-02-22 | Vehicle wheel dragging torque auxiliary measuring device |
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| Country | Link |
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| CN (1) | CN103257012B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833457A (en) * | 2015-05-26 | 2015-08-12 | 江苏速力达精密科技有限公司 | Airtightness detection device |
| CN104842991A (en) * | 2014-12-05 | 2015-08-19 | 北汽福田汽车股份有限公司 | Measurement method of disc brake dragging torque and heating characteristic evaluation method |
| CN109000842A (en) * | 2018-06-11 | 2018-12-14 | 浙江零跑科技有限公司 | A kind of portable based on PID control drags torque measuring device and method |
| CN110315918A (en) * | 2019-05-08 | 2019-10-11 | 安徽字母表工业设计有限公司 | On-vehicle vehicle device for taking off tyre |
| CN114061809A (en) * | 2020-08-06 | 2022-02-18 | 上海汽车集团股份有限公司 | Wheel rim starting resistance measuring tool and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837812Y (en) * | 2005-07-19 | 2006-11-15 | 比亚迪股份有限公司 | Vehicular data acquisition device mounting apparatus |
| FR2899329A1 (en) * | 2006-03-31 | 2007-10-05 | Renault Sas | Drive wheel`s torque and speed measuring arrangement for motor vehicle, has drive shaft to drive drive wheel, and measurement device to measure torque and speed of shaft, where shaft has cylindrical section for integrally carrying device |
| CN201573142U (en) * | 2009-12-24 | 2010-09-08 | 上海昆杰五金工具有限公司 | Multiheaded socket ratchet wrench |
| CN102049745A (en) * | 2009-10-27 | 2011-05-11 | 文登威力高档工具有限公司 | Multi-head socket spanner |
| CN102601757A (en) * | 2012-04-10 | 2012-07-25 | 苏州唐峰金属制品有限公司 | Multi-head wrench |
-
2013
- 2013-02-22 CN CN201310055967.5A patent/CN103257012B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2837812Y (en) * | 2005-07-19 | 2006-11-15 | 比亚迪股份有限公司 | Vehicular data acquisition device mounting apparatus |
| FR2899329A1 (en) * | 2006-03-31 | 2007-10-05 | Renault Sas | Drive wheel`s torque and speed measuring arrangement for motor vehicle, has drive shaft to drive drive wheel, and measurement device to measure torque and speed of shaft, where shaft has cylindrical section for integrally carrying device |
| CN102049745A (en) * | 2009-10-27 | 2011-05-11 | 文登威力高档工具有限公司 | Multi-head socket spanner |
| CN201573142U (en) * | 2009-12-24 | 2010-09-08 | 上海昆杰五金工具有限公司 | Multiheaded socket ratchet wrench |
| CN102601757A (en) * | 2012-04-10 | 2012-07-25 | 苏州唐峰金属制品有限公司 | Multi-head wrench |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842991A (en) * | 2014-12-05 | 2015-08-19 | 北汽福田汽车股份有限公司 | Measurement method of disc brake dragging torque and heating characteristic evaluation method |
| CN104842991B (en) * | 2014-12-05 | 2018-06-19 | 北汽福田汽车股份有限公司 | Disk brake drags the measuring method of torque and the evaluation method of temperature-raising characteristic |
| CN104833457A (en) * | 2015-05-26 | 2015-08-12 | 江苏速力达精密科技有限公司 | Airtightness detection device |
| CN104833457B (en) * | 2015-05-26 | 2017-08-18 | 江苏速力达精密科技有限公司 | A kind of air tightness detection apparatus |
| CN109000842A (en) * | 2018-06-11 | 2018-12-14 | 浙江零跑科技有限公司 | A kind of portable based on PID control drags torque measuring device and method |
| CN110315918A (en) * | 2019-05-08 | 2019-10-11 | 安徽字母表工业设计有限公司 | On-vehicle vehicle device for taking off tyre |
| CN114061809A (en) * | 2020-08-06 | 2022-02-18 | 上海汽车集团股份有限公司 | Wheel rim starting resistance measuring tool and using method thereof |
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| CN103257012B (en) | 2015-04-08 |
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