CN112683550B - Wheel fixing device for chassis dynamometer - Google Patents
Wheel fixing device for chassis dynamometer Download PDFInfo
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- CN112683550B CN112683550B CN202011489851.9A CN202011489851A CN112683550B CN 112683550 B CN112683550 B CN 112683550B CN 202011489851 A CN202011489851 A CN 202011489851A CN 112683550 B CN112683550 B CN 112683550B
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Abstract
The utility model belongs to the technical field of automobile inspection's technique and specifically relates to a wheel fixing device for chassis dynamometer, it includes the elevating platform, the top surface of elevating platform slides and is provided with two articulated framves that have the interval, the one end that the elevating platform was kept away from to two articulated framves all articulates there is the centre gripping subassembly that is used for hugging closely the tire outer peripheral face, the top surface of elevating platform sets firmly the first drive assembly who is used for adjusting two sets of centre gripping subassembly intervals respectively and adjusts the second drive assembly of two articulated frame intervals, the below of elevating platform is equipped with the elevating system who is used for adjusting the elevating platform height, elevating system's bottom is equipped with the base that is used for supporting elevating system, this application has the wheel that makes wheel fixing device can fix the wheel of different models car, enlarge chassis dynamometer application range's effect.
Description
Technical Field
The application relates to the technical field of automobile detection, in particular to a wheel fixing device for a chassis dynamometer.
Background
The chassis dynamometer is an indoor bench test device for testing the performances of automobile dynamic property, multi-working condition emission indexes, fuel indexes and the like, the chassis dynamometer replaces a road surface with roller simulation, and various resistances encountered by an automobile in normal constant-speed running are simulated by a loading device; when the automobile simulates a road test on a chassis dynamometer for a driving wheel of the automobile, a non-driving wheel needs to be fixed.
The related specific process is that the automobile is driven to the test bench, the driving wheel of the automobile is opposite to the roller of the chassis dynamometer, and the non-driving wheel of the automobile is fixed by the wheel fixing device positioned below or on one side of the test bench.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the related wheel fixing device is built together with the chassis dynamometer detection platform, and the relative position of the wheel fixing device and the chassis dynamometer is fixed, so that the wheel base and the wheel base of automobiles with different models are difficult to adapt, and the use range of the chassis dynamometer is small.
Disclosure of Invention
In order to enable the wheel fixing device to fix wheels of automobiles with different models and expand the application range of the chassis dynamometer, the application provides the wheel fixing device for the chassis dynamometer.
The wheel fixing device for the chassis dynamometer adopts the following technical scheme: the utility model provides a wheel fixing device for chassis dynamometer, includes the elevating platform, the top surface of elevating platform slides and is provided with two articulated framves that have the interval, and the one end that the elevating platform was kept away from to two articulated framves all articulates there is the centre gripping subassembly that is used for hugging closely the tire outer peripheral face, and the top surface of elevating platform sets firmly respectively and is used for adjusting the first drive assembly of two sets of centre gripping subassembly intervals and adjusts the second drive assembly of two articulated frame intervals, and the below of elevating platform is equipped with the elevating system who is used for adjusting the elevating platform height, and elevating system's bottom is equipped with the base that is used for supporting elevating system.
By adopting the technical scheme, the automobile is driven to the test board, the driving wheel of the automobile is just opposite to the roller of the chassis dynamometer, the lifting table is pushed to enable the wheel fixing device to be close to the non-driving wheel of the automobile, the lifting table is lifted to a proper height by the aid of the lifting mechanism, the two hinged frames are separated to a distance larger than the diameter of the non-driving wheel of the automobile by the aid of the second driving assembly, the lifting table is pushed to a direction close to the non-driving wheel of the automobile to enable the non-driving wheel of the automobile to be located between the two groups of clamping assemblies, the two hinged frames are close to the two groups of clamping assemblies to enable the two groups of clamping assemblies to tightly hold the non-driving wheel of the automobile preliminarily, the two groups of clamping assemblies are further close to enable the two groups of clamping assemblies to tightly hold the non-driving wheel of the automobile by the aid of the first driving assembly, then, the chassis dynamometer can be used for detecting the automobile, the wheels of the automobiles with different models can be flexibly moved and lifted, the wheels of the automobiles with different sizes can be fixed, and the application range of the chassis dynamometer is expanded.
Optionally, the bottom of the base is connected with a plurality of self-locking universal wheels in a rolling manner, and all the self-locking universal wheels are uniformly distributed near four corners of the base.
By adopting the technical scheme, when the wheel fixing device needs to be pushed, the self-locking universal wheel is unlocked, and the wheel fixing device can be easily pushed; the wheel fixing device locks the self-locking universal wheel in the process of tightly holding and fixing the non-driving wheel of the automobile, and the self-locking universal wheel can stably support the wheel fixing device and keep the operation stability and safety of the wheel fixing device.
Optionally, the centre gripping subassembly includes the polylith arc, and all arcs constitute the half annular shape jointly, and equal rigid coupling has the spring between two adjacent arcs, and the concave surface of two sets of centre gripping subassemblies is just right each other to form the annular with approximate, and the top of two articulated framves has all set firmly the hinge bar, and the arc furthest apart from the elevating platform is articulated with the hinge bar.
Through adopting above-mentioned technical scheme, thereby first drive assembly and two articulated framves drive two sets of centre gripping subassemblies jointly and make the outer peripheral face of the interior concave surface of arc tightly butt wheel hug the wheel tightly, and after the wheel was hugged closely to the centre gripping subassembly, the spring received the pulling force, and the spring made each arc tightly butt wheel, and setting up of spring makes two sets of centre gripping subassemblies form approximate annular size can change in order to hold tightly fixedly with can not unidimensional wheel.
Optionally, first drive assembly includes a servo motor and a lead screw, the top surface fixed connection of a servo motor and elevating platform, first lead screw and a servo motor's output shaft fixed connection, an arc that is close to the elevating platform among two sets of centre gripping subassemblies has all set firmly the regulating block in the side towards articulated frame, first lead screw run through two regulating blocks and with regulating block screw-thread fit, first lead screw set up with two regulating block screw-thread fit's external screw thread turn to opposite.
Through adopting above-mentioned technical scheme, when the interval of two sets of centre gripping subassemblies needs to be adjusted, start first servo motor, first servo motor drives first lead screw and rotates, and first lead screw changes the interval of two regulating blocks, and two regulating blocks change the interval of two arcs that link to each other with it, and the interval and the shape of two sets of centre gripping subassemblies all obtain changing, use first servo motor can be accurate and adjust the appearance and the interval of two sets of centre gripping subassemblies fast.
Optionally, the second driving assembly includes a second servo motor and a second lead screw, the second servo motor is fixedly connected to the top surface of the lifting table, the second lead screw is fixedly connected to an output shaft of the second servo motor, the second lead screw penetrates through the two hinge brackets and is in threaded fit with the two hinge brackets, and the rotation directions of external threads provided on the second lead screw and in threaded fit with the two hinge brackets are opposite.
Through adopting above-mentioned technical scheme, when needing to adjust the interval of two articulated framves, start second servo motor, second servo motor drives the second lead screw and rotates, and the second lead screw changes the interval of two articulated framves, and two articulated framves change the interval and the appearance of two sets of centre gripping subassemblies, use second servo motor can be accurate and adjust the interval of two articulated framves fast, and then the interval and the appearance of two sets of centre gripping subassemblies of fast speed adjusting.
Optionally, elevating system includes two sets of link assemblies, two sets of link assemblies are close to the both sides that the elevating platform deviates from each other respectively, every group link assembly is including the main tributary pole and the vice branch that are cross arrangement, the middle part of main tributary pole is articulated with the middle part of vice branch, the one end of main tributary pole is articulated with the base, the one end that the base was kept away from to the main tributary pole is rotated and is connected with the pulley, the bottom surface roll cooperation of pulley and elevating platform, the one end of vice branch is articulated with the elevating platform, the one end that the elevating platform was kept away from to vice branch is rotated and is connected with the pulley, the top surface roll cooperation of pulley and base, two main tributary poles have set firmly the main tributary arm jointly, two vice branches have set firmly the auxiliary support arm jointly, the main support arm, it has the pneumatic cylinder to articulate jointly between the auxiliary support arm.
By adopting the technical scheme, when the lifting platform is lifted, the piston rod of the hydraulic cylinder extends out, the pulley rotatably connected with the main support rod slowly rolls along the base in the direction close to the auxiliary support rod, the pulley rotatably connected with the auxiliary support rod slowly rolls along the lifting platform in the direction close to the main support rod, the included angle between the main support rod and the auxiliary support rod is continuously changed, the included angle between the hydraulic cylinder and the main support arm and the included angle between the hydraulic cylinder and the auxiliary support arm are also continuously changed, and the lifting platform is gradually lifted; when the lifting platform is descended, a piston rod of the hydraulic cylinder is contracted, the pulley rotatably connected with the main support rod slowly rolls along the base in the direction far away from the auxiliary support rod, the pulley rotatably connected with the auxiliary support rod slowly rolls along the lifting platform in the direction far away from the main support rod, the included angle between the main support rod and the auxiliary support rod is continuously and reversely changed, the included angle between the hydraulic cylinder and the main support arm and the included angle between the hydraulic cylinder and the auxiliary support arm are also continuously and reversely changed, and the lifting platform gradually descends; the control hydraulic cylinder can accurately and easily control the height of the lifting platform, and the operation efficiency of the wheel fixing device is improved.
Optionally, all the indent side of arc all sets firmly a plurality of non-skid protrusions, and non-skid protrusions's top is spherical.
Through adopting above-mentioned technical scheme, the frictional force between arc and the wheel can be increased to the non-slip raised, makes the arc can stably hold the wheel tightly, establishes non-slip raised top into the spherical concentrated stress that can reduce non-slip raised top and wheel contact point, protection wheel.
Optionally, the spherical top end of the anti-skid bulge is fixedly provided with anti-skid grains.
Through adopting above-mentioned technical scheme, the frictional force between non-slip raised and the wheel can further be increased to the antiskid line, makes the arc can stably hold the wheel tightly.
Optionally, a fixed roller is fixedly arranged at the top end of one of the hinged frames, a binding belt is fixedly connected to the fixed roller, a winding and unwinding roller is rotatably connected to the top end of the other hinged frame, one end, far away from the fixed roller, of the binding belt is fixedly connected to the outer peripheral surface of the winding and unwinding roller, and a ratchet and pawl mechanism used for enabling the winding and unwinding roller to be incapable of rotating reversely is arranged on the side, far away from the winding and unwinding roller, of the hinged frame.
By adopting the technical scheme, after the two groups of clamping components tightly hold the wheel, the winding and unwinding rollers are rotated to enable the binding bands to tightly abut against the outer peripheral surface of the wheel to further fix the wheel, the ratchet wheel and pawl mechanism can prevent the winding and unwinding rollers from automatically rotating in the reverse direction, and the binding bands always abut against the wheel in the process of fixing the wheel; after the chassis dynamometer detects the automobile, the pawl is manually pulled away to enable the pawl to be separated from the ratchet wheel, the winding and unwinding roller is rotated reversely, the fixing of the wheel is released by the extension of the binding band, and then the wheel fixing device can be separated from the holding and fixing of the wheel.
Optionally, a shaking handle deviating from the circle center of the ratchet wheel is fixedly arranged on the side of the ratchet wheel deviating from the hinge frame.
Through adopting above-mentioned technical scheme, use and wave the handle and can easily rotate the ratchet and then rotate the roller of receiving and releasing, control the elasticity of bandage.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the wheel fixing device which can move flexibly, the automobile wheels with different wheelbases and wheelbases can be fixed, and the application range of the chassis dynamometer is expanded;
2. by arranging the lifting mechanism, the lifting mechanism can lift the lifting platform to a required height according to the chassis heights of different automobiles so as to fix the wheels, and when the wheel fixing device is stored, the space occupancy rate of the wheel fixing device can be reduced by contracting the lifting mechanism;
3. through setting up the centre gripping subassembly, the centre gripping subassembly can be fixed the wheel of unidimensional not, enlarges the application range of chassis dynamometer machine.
Drawings
FIG. 1 is a schematic structural diagram of a wheel securing device for a chassis dynamometer according to an embodiment of the present application;
fig. 2 is an exploded view embodying a torsion spring.
Description of reference numerals: 1. a base; 11. a self-locking universal wheel; 2. a lifting mechanism; 21. a connecting rod assembly; 211. a main strut; 2111. a main support arm; 212. a secondary strut; 2121. a secondary support arm; 213. a hydraulic cylinder; 214. a pulley; 3. a lifting platform; 31. a chute; 4. a hinged frame; 41. a hinged lever; 42. a fixed roller; 421. binding bands; 43. a take-up and pay-off roller; 44. a pillar; 5. a clamping assembly; 51. an arc-shaped plate; 511. anti-skid projections; 5111. anti-skid lines; 512. an adjusting block; 52. a spring; 6. a first drive assembly; 61. a first servo motor; 62. a first lead screw; 7. a second drive assembly; 71. a second servo motor; 72. a second lead screw; 8. a ratchet-pawl mechanism; 81. a ratchet wheel; 82. a pawl; 821. a torsion spring.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a wheel fixing device for chassis dynamometer, refer to fig. 1, a wheel fixing device for chassis dynamometer includes base 1 in proper order from bottom to top in the vertical plane, elevating system 2, elevating platform 3, two vertical articulated frame 4 and two sets of clamping component 5 that are used for holding fixed wheel tightly, the spout 31 that has the horizontal trend is seted up to the top surface of elevating platform 3, the bottom and the spout 31 sliding fit of two articulated frame 4, the top of two sets of clamping component 5 is articulated with the top of articulated frame 4, the top surface of elevating platform 3 sets firmly respectively and is used for adjusting the first drive assembly 6 of two sets of clamping component 5 intervals and adjusts the second drive assembly 7 of two articulated frame 4 intervals, the top of two articulated frames 4 is equipped with the bandage 421 that are used for holding the wheel tightly jointly, the bottom roll connection of base 1 has four auto-lock universal wheels 11, four auto-lock universal wheels 11 are located the four corners of base 1 respectively.
Referring to fig. 1, when detecting the performance of an automobile, the automobile is driven to a test bench, a driving wheel of the automobile is directly opposite to a roller of a chassis dynamometer, a self-locking universal wheel 11 is unlocked, the lifting platform 3 is pushed to enable the whole wheel fixing device to be close to a non-driving wheel of the automobile, the lifting platform 3 is lifted to a proper height by the lifting mechanism 2, the two hinged frames 4 are separated to a distance larger than the diameter of the non-driving wheel of the automobile by the second driving assembly 7, the lifting platform 3 is pushed to a direction close to the non-driving wheel of the automobile to enable the non-driving wheel of the automobile to be located between the two groups of clamping assemblies 5, the two hinged frames 4 are close to the non-driving wheel of the automobile primarily by the second driving assembly 7, the two groups of clamping assemblies 5 tightly hold the non-driving wheel of the automobile by the first driving assembly 6, the two groups of clamping assemblies 5 further tightly hold the non-driving wheel of the automobile, the binding belt 421 tightly supports the wheels, the fixing effect on the wheels is further improved, and then the self-locking universal wheel 11 can be locked, the chassis dynamometer can start to detect the automobile with different models, and the chassis dynamometer and can expand the use range of the chassis without expanding the size of the chassis.
Referring to fig. 1, the lifting mechanism 2 includes two groups of link assemblies 21, the two groups of link assemblies 21 are respectively close to two sides of the lifting platform 3 which are away from each other, the two groups of link assemblies 21 are perpendicular to the direction of the chute 31 through a connecting line at the same position of the two groups of link assemblies 21, each group of link assemblies 21 includes a main support rod 211 and an auxiliary support rod 212 which are arranged in a cross manner, the middle of the main support rod 211 is hinged to the middle of the auxiliary support rod 212, one end of the main support rod 211 is hinged to the base 1, one end of the main support rod 211, which is far away from the base 1, is rotatably connected with a pulley 214, the pulley 214 of the main support rod 211 is rotatably connected to the bottom surface of the lifting platform 3, one end of the auxiliary support rod 212, which is far away from the lifting platform 3, is rotatably connected with the pulley 214, the pulley 214 of the auxiliary support rod 212 is rotatably connected to the top surface of the base 1, a main support arm 2111 is welded and fixed to the two auxiliary support rods 212, an auxiliary support arm 2121 is welded and a common, two identical hydraulic cylinders 213 are hinged between the main support arm 2111 and the auxiliary support arm 213, and the main support arm 211 is hinged to the auxiliary support arm 2111.
Referring to fig. 1, when the lifting platform 3 is lifted, the piston rod of the hydraulic cylinder 213 is extended, the pulley 214 rotatably connected to the main strut 211 rolls slowly along the base 1 in a direction close to the secondary strut 212, the pulley 214 rotatably connected to the secondary strut 212 rolls slowly along the lifting platform 3 in a direction close to the main strut 211, the included angle between the main strut 211 and the secondary strut 212 is changed continuously, the included angle between the hydraulic cylinder 213 and the main support arm 2111 and the secondary support arm 2121 is changed continuously, and the lifting platform 3 is lifted gradually; when the lifting platform 3 is lowered, a piston rod of the hydraulic cylinder 213 is contracted, the pulley 214 rotatably connected with the main support rod 211 slowly rolls along the base 1 in the direction away from the auxiliary support rod 212, the pulley 214 rotatably connected with the auxiliary support rod 212 slowly rolls along the lifting platform 3 in the direction away from the main support rod 211, the included angle between the main support rod 211 and the auxiliary support rod 212 is continuously and reversely changed, the included angle between the hydraulic cylinder 213 and the main support arm 2111 and the auxiliary support arm 2121 is continuously and reversely changed, and the lifting platform 3 is gradually lowered; the control cylinder 213 can precisely and easily control the height of the elevation table 3, improving the operation efficiency of the wheel fixing device.
Referring to fig. 1, the second driving assembly 7 includes a second servo motor 71 and a second lead screw 72, the second servo motor 71 is welded and fixed to the top surface of the lifting table 3, the second lead screw 72 is welded and fixed to the output shaft of the second servo motor 71, the second lead screw 72 penetrates through the two hinge frames 4 and is in threaded fit with the two hinge frames 4, the screwing directions of external threads, which are formed on the second lead screw 72 and are in threaded fit with the two hinge frames 4, are opposite, when the distance between the two hinge frames 4 needs to be adjusted, the second servo motor 71 is started, the second servo motor 71 drives the second lead screw 72 to rotate, the second lead screw 72 changes the distance between the two hinge frames 4, the two hinge frames 4 change the distance and the shape of the two sets of clamping assemblies 5, so that the two sets of clamping assemblies 5 initially fix the outer peripheral surfaces of the clasping wheels, the distance between the two hinge frames 4 can be accurately and quickly adjusted by using the second servo motor 71, and further, the distance and the shape of the two sets of clamping assemblies 5 can be quickly adjusted.
Referring to fig. 1, the clamping assembly 5 comprises four arc-shaped plates 51, all the arc-shaped plates 51 form a semi-annular shape together, a spring 52 is welded and fixed between two adjacent arc-shaped plates 51, the concave surfaces of two groups of clamping assemblies 5 are opposite to each other to form an annular shape approximately, the side surfaces of two hinge brackets 4 close to the top end are integrally formed with a hinge rod 41, and the hinge rod 41 penetrates through the arc-shaped plate 51 farthest from the lifting platform 3 to be hinged with the arc-shaped plates 51; the concave sides of all the arc plates 51 are integrally formed with a plurality of anti-slip protrusions 511, the top ends of the anti-slip protrusions 511 are spherical, and anti-slip lines 5111 are integrally formed at the spherical top ends of the anti-slip protrusions 511. The first driving assembly 6 and the two hinged frames 4 drive the two groups of clamping assemblies 5 together to enable the inner concave surfaces of the arc-shaped plates 51 to be tightly abutted to the outer peripheral surfaces of the wheels so as to tightly hold the wheels, after the clamping assemblies 5 tightly hold the wheels, the springs 52 are under tension, the springs 52 enable the arc-shaped plates 51 to be tightly abutted to the wheels, and the two groups of clamping assemblies 5 are arranged to form approximate annular sizes and can be changed so as to tightly hold and fix the wheels with different sizes due to the arrangement of the springs 52; the anti-skid protrusions 511 and the anti-skid threads 5111 can increase the friction force between the arc-shaped plates 51 and the wheels, so that the arc-shaped plates 51 can stably hold the wheels tightly, the top ends of the anti-skid protrusions 511 are spherical, the concentrated stress of the top ends of the anti-skid protrusions 511 and the contact points of the wheels can be reduced, and the wheels are protected.
Referring to fig. 1, first drive assembly 6 includes first servo motor 61 and first lead screw 62, first servo motor 61 and elevating platform 3's top surface welded fastening, first lead screw 62 and first servo motor 61's output shaft welded fastening, an arc 51 that is closest to elevating platform 3 in two sets of centre gripping subassemblies 5 has regulating block 512 in the equal integrated into one piece in the side towards articulated frame 4, first lead screw 62 runs through two regulating block 512 and with regulating block 512 screw-thread fit, the external screw thread that first lead screw 62 seted up and two regulating block 512 screw-thread fit revolves to the opposite direction. When the interval of two sets of centre gripping subassemblies 5 need be adjusted, start first servo motor 61, first servo motor 61 drives first lead screw 62 and rotates, first lead screw 62 changes the interval of two regulating blocks 512, two regulating blocks 512 change the interval of two blocks of arcs 51 that link to each other with it, the interval and the shape of two sets of centre gripping subassemblies 5 all obtain changing, use first servo motor 61 can be accurate and adjust the appearance and the interval of two sets of centre gripping subassemblies 5 fast, make centre gripping subassembly 5 fixed hug closely the wheel.
Referring to fig. 1 and 2, a fixed roller 42 is integrally formed near the top end of one of the hinge frames 4, the fixed roller 42 is located above the hinge rod 41 on the same side as the hinge rod 41, a binding belt 421 is fixedly bonded to the outer circumferential surface of the fixed roller 42, a receiving roller 43 is rotatably connected near the top end of the other hinge frame 4, the receiving roller 43 is located above the hinge rod 41 on the same side as the hinge rod 41, one end of the binding belt 421 away from the fixed roller 42 is fixedly bonded to the outer circumferential surface of the receiving roller 43, a ratchet 81 and pawl 82 mechanism 8 for preventing the receiving roller 43 from rotating in the reverse direction is arranged on the side of the hinge frame 4 facing away from the receiving roller 43, the ratchet 81 is fixedly welded to the receiving roller 43, a support 44 is integrally formed on the side of the hinge frame 4 on the same side as the ratchet 81, one end of the pawl 82 away from the ratchet 81 is sleeved on the support 44, a torsion spring 821 is fixedly bonded to the support 44, the other end of the torsion spring 821 is fixedly bonded to the pawl 82, the torsion spring 821 is fixedly bonded to the pawl 821, the torsion spring 821 always supports the ratchet 81 against the ratchet 81, and the side of the hinge frame 4 has a handle deviating from the center of the integrally formed center of the handle 81. After the two groups of clamping assemblies 5 tightly hold the wheels, the ratchet 81 is rotated by means of the rocking handle, the winding and unwinding roller 43 is further rotated, the binding band 421 is wound on the outer peripheral surface of the winding and unwinding roller 43 for one circle, the binding band 421 gradually abuts against the outer peripheral surface of the wheels to further fix the wheels, the ratchet 81 and the pawl 82 mechanism 8 can prevent the winding and unwinding roller 43 from rotating reversely, the binding band 421 always abuts against the wheels in the process of fixing the wheels, after the chassis dynamometer detects the automobile, the pawl 82 is manually pulled away, the pawl 82 is separated from the ratchet 81, the winding and unwinding roller 43 is rotated reversely by means of the rocking handle, the binding band 421 extends to release the fixation of the wheels, and then the wheel fixing device can release the tight fixation of the wheels.
The implementation principle of the wheel fixing device for the chassis dynamometer in the embodiment of the application is as follows: when the performance of the automobile is detected, the automobile is driven to the test bench, the driving wheel of the automobile is opposite to the roller of the chassis dynamometer, the self-locking universal wheel 11 is unlocked, the lifting platform 3 is pushed to enable the whole wheel fixing device to be close to the non-driving wheel of the automobile, the piston rod of the hydraulic cylinder 213 extends out, the pulley 214 rotatably connected with the main support rod 211 slowly rolls along the base 1 in the direction close to the auxiliary support rod 212, the pulley 214 rotatably connected with the auxiliary support rod 212 slowly rolls along the lifting platform 3 in the direction close to the main support rod 211, the included angle between the main support rod 211 and the auxiliary support rod 212 is continuously changed, the included angle between the hydraulic cylinder 213 and the main support arm 2111 and the auxiliary support arm 2121 is also continuously changed, the lifting platform 3 is gradually lifted, the second servo motor 71 is started to separate the two hinged frames 4 to a distance larger than the diameter of the non-driving wheel of the automobile, promote elevating platform 3 to the direction that is close to the automobile non-drive wheel and make the automobile non-drive wheel be located between two sets of centre gripping subassemblies 5, utilize second servo motor 71 to make two articulated framves 4 slide along spout 31 and be close to tentatively make two sets of centre gripping subassemblies 5 hold the automobile non-drive wheel tightly, utilize first servo motor 61 to make two sets of centre gripping subassemblies 5 further be close to make two sets of centre gripping subassemblies 5 further hold the automobile non-drive wheel tightly, rotate ratchet 81 and then rotate the outer peripheral face that receives and releases roller 43 and make the winding of bandage 421 round circle around receiving and releasing roller 43 with the help of shaking the handle, bandage 421 are supported the outer peripheral face that the wheel was tightly gradually and are further fixed to the wheel, afterwards, locking auto-lock universal wheel 11, can use the chassis dynamometer to begin to detect the automobile promptly.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. A wheel fixing device for a chassis dynamometer, characterized in that: the tire clamping device comprises a lifting table (3), wherein two hinged frames (4) with intervals are arranged on the top surface of the lifting table (3) in a sliding mode, clamping components (5) used for tightly holding the peripheral surface of a tire are hinged to one ends, far away from the lifting table (3), of the two hinged frames (4), a first driving component (6) used for adjusting the intervals of the two groups of clamping components (5) and a second driving component (7) used for adjusting the intervals of the two hinged frames (4) are fixedly arranged on the top surface of the lifting table (3), a lifting mechanism (2) used for adjusting the height of the lifting table (3) is arranged below the lifting table (3), and a base (1) used for supporting the lifting mechanism (2) is arranged at the bottom of the lifting mechanism (2); the clamping assemblies (5) comprise a plurality of arc-shaped plates (51), all the arc-shaped plates (51) jointly form a semi-annular shape, springs (52) are fixedly connected between every two adjacent arc-shaped plates (51), concave surfaces of the two groups of clamping assemblies (5) are opposite to each other to form an annular shape approximately, hinged rods (41) are fixedly arranged at the top ends of the two hinged frames (4), and the arc-shaped plate (51) farthest from the lifting platform (3) is hinged with the hinged rods (41); the first driving assembly (6) comprises a first servo motor (61) and a first lead screw (62), the first servo motor (61) is fixedly connected with the top surface of the lifting platform (3), the first lead screw (62) is fixedly connected with an output shaft of the first servo motor (61), adjusting blocks (512) are fixedly arranged on the side surface, facing the hinge frame (4), of an arc plate (51) close to the lifting platform (3) in the two groups of clamping assemblies (5), the first lead screw (62) penetrates through the two adjusting blocks (512) and is in threaded fit with the adjusting blocks (512), and the external threads, which are arranged on the first lead screw (62) and are in threaded fit with the two adjusting blocks (512), are opposite in rotating direction; the second driving assembly (7) comprises a second servo motor (71) and a second lead screw (72), the second servo motor (71) is fixedly connected with the top surface of the lifting table (3), the second lead screw (72) is fixedly connected with an output shaft of the second servo motor (71), the second lead screw (72) penetrates through the two hinge frames (4) and is in threaded fit with the two hinge frames (4), and the rotating directions of external threads formed in the second lead screw (72) and in threaded fit with the two hinge frames (4) are opposite; a fixed roller (42) is fixedly arranged at the top end of one of the hinged frames (4), a binding belt (421) is fixedly connected to the fixed roller (42), a receiving and releasing roller (43) is rotatably connected to the top end of the other hinged frame (4), one end, far away from the fixed roller (42), of the binding belt (421) is fixedly connected to the outer peripheral surface of the receiving and releasing roller (43), and a ratchet wheel (81) and pawl (82) mechanism (8) used for enabling the receiving and releasing roller (43) to be incapable of rotating reversely by itself is arranged on the side surface, far away from the receiving and releasing roller (43), of the hinged frame (4); and a shaking handle deviating from the circle center of the ratchet wheel (81) is fixedly arranged on the side surface of the ratchet wheel (81) deviating from the hinge frame (4).
2. The wheel securing device for a chassis dynamometer according to claim 1, characterized in that: the bottom of the base (1) is connected with a plurality of self-locking universal wheels (11) in a rolling mode, and all the self-locking universal wheels (11) are uniformly distributed near the four corners of the base (1).
3. The wheel securing device for a chassis dynamometer according to claim 1, characterized in that: the lifting mechanism (2) comprises two groups of connecting rod assemblies (21), the two groups of connecting rod assemblies (21) are close to two sides of a lifting platform (3) and deviate from each other respectively, each group of connecting rod assemblies (21) comprises a main supporting rod (211) and an auxiliary supporting rod (212) which are arranged in a cross mode, the middle of the main supporting rod (211) is hinged to the middle of the auxiliary supporting rod (212), one end of the main supporting rod (211) is hinged to the base (1), one end, far away from the base (1), of the main supporting rod (211) is rotatably connected with a pulley (214), the pulley (214) is in rolling fit with the bottom surface of the lifting platform (3), one end of the auxiliary supporting rod (212) is hinged to the lifting platform (3), one end, far away from the lifting platform (3), of the auxiliary supporting rod (212) is rotatably connected with the pulley (214), the pulley (214) is in rolling fit with the top surface of the base (1), a main supporting arm (2111) is fixedly arranged on the two main supporting rods (211), an auxiliary supporting arm (2121) is fixedly arranged on the two auxiliary supporting rods (212), and a hydraulic cylinder (213) is hinged to the main supporting arm (2111) and the auxiliary supporting arm (2121) jointly.
4. The wheel securing device for a chassis dynamometer according to claim 1, characterized in that: a plurality of anti-skid protrusions (511) are fixedly arranged on the concave sides of all the arc-shaped plates (51), and the top ends of the anti-skid protrusions (511) are spherical.
5. The wheel securing device for a chassis dynamometer according to claim 4, wherein: the spherical top ends of the anti-skid bulges (511) are fixedly provided with anti-skid threads (5111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011489851.9A CN112683550B (en) | 2020-12-16 | 2020-12-16 | Wheel fixing device for chassis dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011489851.9A CN112683550B (en) | 2020-12-16 | 2020-12-16 | Wheel fixing device for chassis dynamometer |
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| Publication Number | Publication Date |
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| CN112683550A CN112683550A (en) | 2021-04-20 |
| CN112683550B true CN112683550B (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011489851.9A Active CN112683550B (en) | 2020-12-16 | 2020-12-16 | Wheel fixing device for chassis dynamometer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113625116B (en) * | 2021-08-16 | 2023-03-14 | 江苏科技大学 | Multi-performance detection system based on avoidance of turn-to-turn short circuit fault of motor before delivery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009162628A (en) * | 2008-01-08 | 2009-07-23 | Ono Sokki Co Ltd | Chassis dynamometer |
| CN106006495A (en) * | 2016-07-26 | 2016-10-12 | 钦州学院 | Lifting platform car capable of achieving height adjustment based on ball screw |
| CN108801521A (en) * | 2018-06-02 | 2018-11-13 | 上海公孚机动车检测有限公司 | the wheel fixing mechanism of chassis dynamometer |
| CN111238827A (en) * | 2020-02-03 | 2020-06-05 | 中山市德思泰车辆检测科技有限公司 | Heavy-duty vehicle chassis dynamometer |
| CN211085531U (en) * | 2019-12-16 | 2020-07-24 | 滁州学院 | Wheel fixing device of automobile chassis dynamometer |
-
2020
- 2020-12-16 CN CN202011489851.9A patent/CN112683550B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009162628A (en) * | 2008-01-08 | 2009-07-23 | Ono Sokki Co Ltd | Chassis dynamometer |
| CN106006495A (en) * | 2016-07-26 | 2016-10-12 | 钦州学院 | Lifting platform car capable of achieving height adjustment based on ball screw |
| CN108801521A (en) * | 2018-06-02 | 2018-11-13 | 上海公孚机动车检测有限公司 | the wheel fixing mechanism of chassis dynamometer |
| CN211085531U (en) * | 2019-12-16 | 2020-07-24 | 滁州学院 | Wheel fixing device of automobile chassis dynamometer |
| CN111238827A (en) * | 2020-02-03 | 2020-06-05 | 中山市德思泰车辆检测科技有限公司 | Heavy-duty vehicle chassis dynamometer |
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