CN110864919A - Commercial automobile power assembly running-in test rack - Google Patents
Commercial automobile power assembly running-in test rack Download PDFInfo
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- CN110864919A CN110864919A CN201911354617.2A CN201911354617A CN110864919A CN 110864919 A CN110864919 A CN 110864919A CN 201911354617 A CN201911354617 A CN 201911354617A CN 110864919 A CN110864919 A CN 110864919A
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention provides a running-in test bench for a commercial automobile power assembly, which is used for quickly and accurately positioning the automobile power assembly and then quickly butting the power assembly and a load motor, so that the positioning is quick and convenient, the running-in test time is short, and the test efficiency is high. The rear end of the length direction of the base is provided with a vertical plate support, the upper inner surface of the vertical plate support is fixedly provided with a horizontal support plate, two sides of the horizontal support plate are respectively provided with a group of horizontal driving assemblies, each group of horizontal driving assemblies is respectively connected with a clamping plate, the two clamping plates are respectively exposed in the horizontal support plate and are oppositely arranged, the inner surface of the vertical plate support is further provided with a disc positioning assembly, a front convex positioning pin of the disc positioning assembly is used for fixedly connecting corresponding position process holes of a power assembly to be detected, and a first sliding table assembly is arranged under the surface area of the two clamping plates.
Description
Technical Field
The invention relates to the technical field of gear selecting and shifting mechanism testing, in particular to a running-in test bench for a commercial automobile power assembly.
Background
In the automobile manufacturing industry, after an automobile power assembly is assembled, the function and the performance of the automobile power assembly need to be subjected to running-in test, and the automobile power assembly can be taken off line after the test is qualified, so that the qualification rate of products is ensured.
Disclosure of Invention
In order to solve the problems, the invention provides a running-in test bench for a commercial automobile power assembly, which is used for quickly and accurately positioning the automobile power assembly and then quickly butting the power assembly and a load motor, so that the positioning is quick and convenient, the running-in test time is short, and the test efficiency is high.
The utility model provides a commercial automobile power assembly break-in test bench which characterized in that: the device comprises a base, wherein a vertical plate support is arranged at the rear end of the base in the length direction, a horizontal support plate is fixedly arranged on the inner surface of the upper part of the vertical plate support, a group of horizontal driving assemblies are respectively arranged on two sides of the horizontal support plate, each group of horizontal driving assemblies is respectively connected with a clamping plate, the two clamping plates are respectively exposed out of the horizontal support plate and oppositely arranged, a disc positioning assembly is further arranged on the inner surface of the vertical plate support, a front convex positioning pin of the disc positioning assembly is used for fixedly connecting a process hole at a corresponding position of a power assembly to be detected, a first sliding table assembly is arranged under the surface area of the two clamping plates, the first sliding table assembly comprises a product support plate, sliding rail support plates at two sides and a first sliding rail, a plurality of convex parts are arranged on the product support plate corresponding to the power assembly, and two sides of the product, the sliding rail supporting plate at each side is supported on a first sliding rail, the first sliding rail is arranged along the length direction of the base, the bottom of the sliding rail supporting plate at one side is provided with a driving gear, the corresponding side of the corresponding first sliding rail is provided with a linear rack, the driving gear is meshed and connected with the linear rack, an outward convex hand wheel is externally connected with an input shaft of the driving gear, the bottom of the product supporting plate at the initial position is provided with a vertical jacking cylinder, a cylinder seat of the vertical jacking cylinder is fixedly arranged on the base, the upper piston end of the vertical jacking cylinder only props against a bottom plate of the product supporting plate, the vertical jacking cylinder completely retracts from the upper piston end of the product supporting plate, the front end of the base is provided with a power transmission component, the power transmission component is supported on a second sliding table supporting plate, and the bottom of the second sliding table supporting plate is embedded in a second, the second slide rail along the length direction of base arranges, power transmission assembly is from preceding then for load motor, bearing housing, diaphragm coupling in order, the input of bearing housing is connected to the output of load motor, the output of bearing housing is connected the one end of diaphragm coupling, the other end orientation of diaphragm coupling is taken the flange that detects power assembly and is arranged, be provided with servo motor on the base, servo motor is connected with the lead screw, the lead screw is connected the screw-nut of second slip table bearing plate bottom, second slip table bearing plate with oiling subassembly has been arranged in the region between the first slip table subassembly, oiling subassembly is owing to carry out the oiling to the gearbox.
It is further characterized in that:
each group of horizontal driving assembly bodies comprises a clamping cylinder and a connecting block, the clamping cylinder is fastened on the horizontal supporting plate, the piston end of the clamping cylinder is fixedly connected with the connecting block, the outer end of the connecting block is connected with the upper part of a clamping plate, the upper part of the clamping plate penetrates through the corresponding guide groove of the horizontal supporting plate, the front end surface of each clamping plate is also provided with an inwards concave wedge-shaped groove, the front end of each wedge-shaped groove is provided with an inclined pin sliding block, the outer side of each inclined pin sliding block is fixedly provided with a bolt cylinder, each inclined pin sliding block is arranged towards the wedge-shaped groove, and after the two clamping plates clamp two sides of the power assembly, the inclined pin sliding blocks are inserted into the wedge-shaped grooves to complete clamping and locking;
the disc positioning assembly comprises a disc base plate, a disc fixing plate, holding arms and holding oil cylinders, the disc base plate is fixedly connected to the corresponding positions of the vertical plates, the disc fixing plate is fixedly connected to the disc base plate, the disc fixing plate is replaced according to the model, different front protruding positioning pins are arranged on the disc fixing plate of each model corresponding to the power assembly of each model respectively, two holding arms protruding forwards are distributed on the disc base plate, one holding oil cylinder is arranged at the tail end of each holding arm, and the holding plates of the holding oil cylinders ensure that the axial positions of the power assemblies are stable and reliable;
a vertical brake cylinder is fixedly arranged at the position, corresponding to a connecting flange of the power assembly, of the product supporting plate, a brake block is arranged at the piston end at the upper part of the vertical brake cylinder, and the brake block is locked and attached to the connecting flange in a jacking state so that the connecting flange cannot rotate and radial positioning is further ensured;
a load motor bracket is arranged at the position of the second sliding table supporting plate corresponding to the load motor, and the load motor is positioned and arranged on the load motor bracket, so that the transmission stability and reliability of the load motor are ensured;
a sensor is arranged at the bottom of the diaphragm coupling and used for detecting whether the diaphragm coupling is successfully butted with the connecting flange;
the oil injection assembly specifically comprises an oil circuit block, a quick plug, an electromagnetic valve and a slide rail, wherein the oil circuit block is arranged at the upper part of a fixing plate, the oil circuit block is provided with the corresponding quick plug, the oil circuit block is also provided with the electromagnetic valve, one side of the oil circuit block is clamped on the slide rail, the slide rail is fixedly connected to a base through a slide rail fixing plate, the piston end of a vertical driving cylinder penetrates through the fixing block and then is connected with the bottom of the other side of the oil circuit block, the linear guide pillar is further arranged, the vertical linear motion of the oil circuit block is ensured to be stable and reliable through the linear guide pillar, and oil is injected into the gearbox through the quick plug through the electromagnetic valve.
After the technical scheme is adopted, the power assembly is hoisted to the product supporting plate at the jacking position, then a cooling water pipe of a driving motor of the power assembly, a gear selecting and shifting connector and a vehicle speed sensor connector are connected, then a hand wheel is driven to enable the rear end face of the power assembly to be correspondingly positioned and inserted into a front convex positioning pin of a disc positioning component and to be axially held tightly through a holding oil cylinder, then a clamping plate is driven to clamp the power assembly, the power assembly is rapidly positioned, then the hand wheel is vertically descended to a jacking cylinder, the power assembly is separated from the product supporting plate, then a ball screw rod is driven through a servo motor, a second sliding table supporting plate is pushed to drive the driving motor and a diaphragm coupler to slide, and therefore the power assembly is butted with an upper flange of; automatic oil injection and drainage are realized by butting a quick connector of an oil injection assembly with an oil injection port of a transmission on a power assembly; the whole set of testing device controls each moving component, a hydraulic station, an oiling machine and the like through a PLC (programmable logic controller), a whole vehicle controller and the like to complete the automatic running-in test of the automobile power assembly; after the automobile power assembly is quickly and accurately positioned, the power assembly and the load motor are quickly butted, so that the positioning is quick and convenient, the running-in test time is short, and the test efficiency is high.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a perspective view of the components of the horizontal support plate of the present invention;
FIG. 3 is a partial perspective view of the present invention;
FIG. 4 is a perspective view of the assembly of the second slipway supporting plate of the present invention;
FIG. 5 is a perspective view of the oiling assembly of the present invention;
a schematic structural diagram;
the names corresponding to the sequence numbers in the figure are as follows:
the device comprises a base 1, a vertical plate support 2, a vertical plate 201, a horizontal support plate 3, a guide groove 31, a clamping plate 4, a wedge-shaped groove 41, a disc positioning component 5, a disc bottom plate 51, a disc fixing plate 52, a holding arm 53, a holding oil cylinder 54, a front convex positioning pin 501, a first sliding table component 6, a product support plate 61, a sliding rail support plate 62, a first sliding rail 63, a lifting guide pillar 64, a vertical brake cylinder 65, a brake block 66, a hand wheel 7, a vertical jacking cylinder 8, a second sliding table support plate 9, a second sliding rail 10, a load motor 11, a bearing box 12, a diaphragm coupling 13, a servo motor 14, a screw rod 15, an oiling component 16, an oil path block 161, a quick plug 162, an electromagnetic valve 163, a sliding rail 164, a fixing plate 165, a sliding rail fixing plate 166, a vertical drive cylinder 167, a linear guide pillar 168, a clamping cylinder 17, a connecting block 18, an inclined pin sliding, A sensor 22.
Detailed Description
A running-in test stand for a commercial vehicle powertrain, as shown in fig. 1-5: the device comprises a base 1, a vertical plate support 2 is arranged at the rear end of the base 1 in the length direction, a horizontal support plate 3 is fixedly arranged on the inner surface of the upper portion of the vertical plate support 2, a group of horizontal driving assemblies are respectively arranged on two sides of the horizontal support plate 3, each group of horizontal driving assemblies is respectively connected with a clamping plate 4, the two clamping plates 4 are respectively exposed out of the horizontal support plate 3 and are oppositely arranged, a disc positioning assembly 5 is further arranged on the inner surface of a vertical plate 201 of the vertical plate support 2, a front convex positioning pin 501 of the disc positioning assembly 5 is used for fixedly connecting corresponding position process holes of a power assembly (not shown in the figure and comprising a driving motor and a gearbox structure) to be detected, a first sliding table assembly 6 is arranged under the surface area of the two clamping plates 4, the first sliding table assembly 6 comprises a product support plate 61, sliding rail support plates 62 on two sides and a first sliding rail 63, the two sides of the product supporting plate 61 are respectively supported on the sliding rail supporting plate 62 at the corresponding side through the lifting guide post 64, the sliding rail supporting plate 62 at each side is supported on the first sliding rail 63, the first sliding rail 63 is arranged along the length direction of the base 1, the bottom of the sliding rail supporting plate 62 at one side is provided with a driving gear, the corresponding side of the corresponding first sliding rail is provided with a linear rack, the driving gear is meshed and connected with the linear rack (the part is shielded, which belongs to the existing mature transmission technology), the input shaft of the driving gear is externally connected with a convex hand wheel 7, the bottom of the product supporting plate 61 at the initial position is provided with a vertical jacking cylinder 8, the cylinder seat of the vertical jacking cylinder 8 is fixedly arranged on the base 1, the upper piston end of the vertical jacking cylinder 8 only props against the bottom plate of the product supporting plate 61, and the vertical jacking cylinder 8 completely retracts, the front end of the base 1 is provided with a power transmission assembly, the power transmission assembly is supported on a second sliding table supporting plate 9, the bottom of the second sliding table supporting plate 9 is embedded in a second sliding rail 10, the second sliding rail 10 is arranged along the length direction of the base 1, the power transmission assembly sequentially comprises a load motor 11 and a bearing box body 12 from front to back, the automatic transmission device comprises a diaphragm coupling 13, the output end of a load motor 11 is connected with the input end of a bearing box body 12, the output end of the bearing box body 12 is connected with one end of the diaphragm coupling 13, the other end of the diaphragm coupling 13 is arranged towards a connecting flange with a detection power assembly, a servo motor 14 is arranged on a base 1, the servo motor 14 is connected with a lead screw 15, the lead screw 15 is connected with a lead screw nut at the bottom of a second sliding table supporting plate 9, an oiling component 16 is arranged in an area between the second sliding table supporting plate 9 and a first sliding table component 6, and the oiling component 16 is used for oiling the transmission.
Each group of horizontal driving component bodies comprises a clamping cylinder 17 and a connecting block 18, the clamping cylinder 17 is fastened on the horizontal supporting plate 6, the piston end of the clamping cylinder 17 is fixedly connected with the connecting block 18, the outer end of the connecting block 18 is connected with the upper part of the clamping plate 4, the upper part of the clamping plate 4 penetrates through the corresponding guide groove 31 of the horizontal supporting plate 3, the front end surface of each clamped plate 4 is also provided with an inwards concave wedge-shaped groove 41, the front end of each wedge-shaped groove 41 is provided with an inclined pin sliding block 19, the outer side of each inclined pin sliding block 19 is fixedly provided with a plug pin cylinder 20, each inclined pin sliding block 19 is arranged towards the wedge-shaped groove 41, and after the two clamping plates 4 clamp two sides of the power assembly, the inclined pin sliding blocks 19 are inserted into the wedge-;
the disc positioning component 5 comprises a disc base plate 51, a disc fixing plate 52, a holding arm 53 and a holding oil cylinder 54, wherein the disc base plate 51 is fixedly connected to the corresponding position of the vertical plate 201, the disc fixing plate 52 is fixedly connected to the disc base plate 51, the disc fixing plate 52 is replaced according to the model, different front convex positioning pins 501 are respectively arranged on the disc fixing plate 52 of each model corresponding to the power assembly of each model, two holding arms 53 protruding forwards are distributed on the disc base plate 51, the tail end of each holding arm 53 is provided with the holding oil cylinder 54, and the holding plates of the holding oil cylinders 54 ensure that the axial position of the power assembly is stable and reliable;
a vertical brake cylinder 65 is fixedly arranged at the position, corresponding to the connecting flange of the power assembly, of the product supporting plate 61, a brake block 66 is arranged at the piston end of the upper part of the vertical brake cylinder 65, and the connecting flange is locked and attached under the jacking state of the brake block 66, so that the connecting flange cannot rotate, and the radial positioning is further ensured;
a load motor bracket 21 is arranged at the position of the second sliding table supporting plate 9 corresponding to the load motor 11, and the load motor 11 is positioned and mounted on the load motor bracket 21, so that the transmission stability and reliability of the load motor 11 are ensured;
a sensor 22 is arranged at the bottom of the diaphragm coupling 13, and the sensor 22 is used for detecting whether the diaphragm coupling 13 is successfully butted with the connecting flange;
the oil injection assembly 16 specifically comprises an oil path block 161, a quick plug 162, an electromagnetic valve 163 and a sliding rail 164, wherein the oil path block 161 is arranged at the upper part of a fixing plate 165, the oil path block 161 is provided with the corresponding quick plug 162, the electromagnetic valve 163 is further arranged on the oil path block 161, one side of the oil path block 161 is clamped on the sliding rail 164, the sliding rail 164 is fixedly connected to the base 1 through a sliding rail fixing plate 166, the piston end of a vertical driving cylinder 167 penetrates through the fixing block 161 and then is connected with the bottom of the other side of the oil path block 161, the oil injection assembly further comprises a linear guide pillar 168, the linear guide pillar 168 ensures stable and reliable vertical linear motion of the oil path block 161, and oil is injected into the gearbox through the quick.
The working principle is as follows: hoisting a power assembly to a product supporting plate at a jacking position, then connecting a cooling water pipe of a driving motor of the power assembly, a gear selecting and shifting connector and a vehicle speed sensor connector, then driving a hand wheel to enable the rear end face of the power assembly to be correspondingly positioned and inserted in a front convex positioning pin of a disc positioning component and to be axially held tightly through a holding oil cylinder, then driving a clamping plate to clamp the power assembly and to be locked and attached through an inclined pin sliding block to finish the quick positioning of the power assembly, then vertically descending towards a jacking cylinder to enable the power assembly to be separated from the product supporting plate, then driving a ball screw rod through a servo motor, pushing a second sliding table supporting plate to drive the driving motor and a diaphragm coupler to slide, and further finishing the butt joint with an upper flange of a transmission of the power assembly; automatic oil injection and drainage are realized by butting a quick connector of an oil injection assembly with an oil injection port of a transmission on a power assembly; the whole set of testing device controls each moving component, a hydraulic station, an oiling machine and the like through a PLC (programmable logic controller), a whole vehicle controller and the like to complete the automatic running-in test of the automobile power assembly; after the automobile power assembly is quickly and accurately positioned, the power assembly and the load motor are quickly butted, so that the positioning is quick and convenient, the running-in test time is short, and the test efficiency is high.
The beneficial effects are as follows: the mechanical clamping mode of the angle pin sliding block mechanism is adopted to ensure the reliability of clamping with lower cost and simple structure; automatic oil injection and drainage are realized by utilizing the cylinder and the oil injection quick plug; the automatic butt joint of the transmission flange is realized by utilizing the diaphragm coupling and the motor; the quick-mounting, clamping and fixing are realized, and compared with the traditional bolt fixing, manual oil injection and manual flange butting, the quick-mounting, clamping and fixing device is higher in operability, more convenient, higher in efficiency and more stable; the universality is strong, and the automobile power assembly with the similar appearance size and the similar output flange plate can be used by replacing the auxiliary tool.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a commercial automobile power assembly break-in test bench which characterized in that: the device comprises a base, wherein a vertical plate support is arranged at the rear end of the base in the length direction, a horizontal support plate is fixedly arranged on the inner surface of the upper part of the vertical plate support, a group of horizontal driving assemblies are respectively arranged on two sides of the horizontal support plate, each group of horizontal driving assemblies is respectively connected with a clamping plate, the two clamping plates are respectively exposed out of the horizontal support plate and oppositely arranged, a disc positioning assembly is further arranged on the inner surface of the vertical plate support, a front convex positioning pin of the disc positioning assembly is used for fixedly connecting a process hole at a corresponding position of a power assembly to be detected, a first sliding table assembly is arranged under the surface area of the two clamping plates, the first sliding table assembly comprises a product support plate, sliding rail support plates at two sides and a first sliding rail, a plurality of convex parts are arranged on the product support plate corresponding to the power assembly, and two sides of the product, the sliding rail supporting plate at each side is supported on a first sliding rail, the first sliding rail is arranged along the length direction of the base, the bottom of the sliding rail supporting plate at one side is provided with a driving gear, the corresponding side of the corresponding first sliding rail is provided with a linear rack, the driving gear is meshed and connected with the linear rack, an outward convex hand wheel is externally connected with an input shaft of the driving gear, the bottom of the product supporting plate at the initial position is provided with a vertical jacking cylinder, a cylinder seat of the vertical jacking cylinder is fixedly arranged on the base, the upper piston end of the vertical jacking cylinder only props against a bottom plate of the product supporting plate, the vertical jacking cylinder completely retracts from the upper piston end of the product supporting plate, the front end of the base is provided with a power transmission component, the power transmission component is supported on a second sliding table supporting plate, and the bottom of the second sliding table supporting plate is embedded in a second, the second slide rail along the length direction of base arranges, power transmission assembly is from preceding then for load motor, bearing housing, diaphragm coupling in order, the input of bearing housing is connected to the output of load motor, the output of bearing housing is connected the one end of diaphragm coupling, the other end orientation of diaphragm coupling is taken the flange that detects power assembly and is arranged, be provided with servo motor on the base, servo motor is connected with the lead screw, the lead screw is connected the screw-nut of second slip table bearing plate bottom, second slip table bearing plate with oiling subassembly has been arranged in the region between the first slip table subassembly, oiling subassembly is owing to carry out the oiling to the gearbox.
2. A commercial vehicle powertrain break-in test stand as defined in claim 1 wherein: every group horizontal drive assembly body includes die clamping cylinder, connecting block, die clamping cylinder fasten in horizontal support plate, die clamping cylinder's piston end rigid coupling respectively has the connecting block, the upper portion of grip block is connected to the outer end of connecting block, the upper portion of grip block runs through horizontal support plate's corresponding guide way, and the preceding terminal surface of every grip block still is provided with the wedge groove of indent, and an angle pin slider has been arranged to the front end of every wedge groove, every the outside of angle pin slider has set firmly a bolt cylinder, every the orientation of angle pin slider the wedge groove is arranged and is set up.
3. A commercial vehicle powertrain break-in test stand as defined in claim 1 wherein: the disc locating component comprises a disc base plate, a disc fixing plate, an enclasping arm and an enclasping oil cylinder, wherein the disc base plate is fixedly connected with the corresponding position of the vertical plate, the disc fixing plate is fixedly connected with the disc base plate, the disc fixing plate is replaced according to models, the disc fixing plate of each model is respectively provided with different front convex locating pins corresponding to the power assembly of each model, the disc base plate is provided with two forward convex enclasping arms, and the tail end of each enclasping arm is provided with an enclasping oil cylinder.
4. A commercial vehicle powertrain break-in test stand as defined in claim 1 wherein: the product backup pad is corresponding to the power assembly's flange's position department sets firmly perpendicularly to the brake cylinder, the upper portion piston end that perpendicularly to the brake cylinder is provided with the brake block, the lock attaches under the brake block jack-up state flange, make flange can not rotate, and then ensure radial positioning.
5. A commercial vehicle powertrain break-in test stand as defined in claim 1 wherein: and a load motor support is arranged at the position of the second sliding table support plate corresponding to the load motor, and the load motor is positioned and installed on the load motor support.
6. A commercial vehicle powertrain break-in test stand as defined in claim 1 wherein: the bottom position of the diaphragm coupling is provided with a sensor, and the sensor is used for detecting whether the diaphragm coupling is successfully butted with the connecting flange.
7. A commercial vehicle powertrain break-in test stand as defined in claim 1 wherein: the oil injection assembly specifically comprises an oil circuit block, a quick plug, an electromagnetic valve and a slide rail, wherein the oil circuit block is arranged at the upper part of a fixed plate, the oil circuit block is provided with the corresponding quick plug, the oil circuit block is also provided with the electromagnetic valve, one side of the oil circuit block is clamped on the slide rail, the slide rail is fixedly connected to a base through a slide rail fixed plate, and the piston end of a vertical driving cylinder penetrates through the fixed block and then is connected with the bottom of the other side of the oil circuit block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911354617.2A CN110864919A (en) | 2019-12-25 | 2019-12-25 | Commercial automobile power assembly running-in test rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911354617.2A CN110864919A (en) | 2019-12-25 | 2019-12-25 | Commercial automobile power assembly running-in test rack |
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| Publication Number | Publication Date |
|---|---|
| CN110864919A true CN110864919A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911354617.2A Pending CN110864919A (en) | 2019-12-25 | 2019-12-25 | Commercial automobile power assembly running-in test rack |
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| Country | Link |
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| CN (1) | CN110864919A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692680A (en) * | 2021-01-04 | 2021-04-23 | 东风汽车股份有限公司 | Steering engine valve running-in device and running-in method |
| CN113586556A (en) * | 2021-08-09 | 2021-11-02 | 合肥海源机械有限公司 | Supporting table for detecting grinding and inner leakage of cylinder barrel for assembling inclined oil cylinder |
-
2019
- 2019-12-25 CN CN201911354617.2A patent/CN110864919A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692680A (en) * | 2021-01-04 | 2021-04-23 | 东风汽车股份有限公司 | Steering engine valve running-in device and running-in method |
| CN113586556A (en) * | 2021-08-09 | 2021-11-02 | 合肥海源机械有限公司 | Supporting table for detecting grinding and inner leakage of cylinder barrel for assembling inclined oil cylinder |
| CN113586556B (en) * | 2021-08-09 | 2024-01-26 | 合肥海源机械有限公司 | Supporting table for cylinder barrel running-in and internal leakage detection for inclined oil cylinder assembly |
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