CN209764437U - Vehicle braking bench test device - Google Patents

Abstract

The utility model discloses a vehicle braking bench test device, including the roll subassembly, the roll subassembly is including fixed frame, two first boards of placing, first axis of rotation, cup joint the first gyro wheel in first axis of rotation one end, the board is placed to two seconds, pass the second axis of rotation that the board was placed to the second, cup joint the second gyro wheel in the second axis of rotation, install the first band pulley in first axis of rotation one end, the second band pulley has been cup jointed to the one end of second axis of rotation, the belt has been cup jointed between first band pulley and the second band pulley, be provided with the motor in the fixed frame, two seconds are placed the board and are passed through the connecting plate and connect, be provided with first adjusting part on the connecting plate, first adjusting part includes first square piece, connect the second square piece on the fixed frame bottom surface, the inside first screw rod of screw thread insertion second square piece, be provided with ejecting subassembly in the fixed. The utility model discloses have the convenience and adjust the interval between first gyro wheel and the second gyro wheel, make its effect that is applicable to the wheel of various diameters.

Description

Vehicle braking bench test device

Technical Field

the utility model belongs to the technical field of the automotive inspection equipment technique and specifically relates to a vehicle braking bench test device is related to.

Background

At present, the braking performance is an important performance index of a vehicle, and the accurate and rapid detection of the braking performance of the vehicle has great significance for ensuring the driving safety and the like. When the braking performance is detected, the braking force and the wheel weight of each group of coaxial wheels (such as front wheels, rear wheels and the like) or one side wheel (such as left front wheels, right rear wheels and the like) in each group of coaxial wheels are respectively measured in the same braking process, and braking parameters such as the braking rate, the braking time sequence, the braking force distribution, the unbalance rate, the whole vehicle braking and the like of each wheel are calculated.

At present, chinese utility model patent that publication number is CN203432805U discloses a vehicle braking bench test device, including cylinder I and cylinder II to and frame, its characterized in that: the roller I is fixed on the base through a bearing seat, one end of the roller I penetrates through the bearing seat to be connected with the reduction gearbox box, and the other end of the roller I penetrates through the bearing seat to be connected with the chain wheel. The reduction gearbox is connected with the motor. The roller II is fixed on the guide rail through a bearing seat, a guide rail groove matched with the guide rail is arranged on the base, a worm wheel and a screw rod mechanism are arranged on the guide rail, the screw rod is connected with a driving device, and a position sensor is arranged on the roller guide rail. And a chain transmission is arranged between the roller I and the roller II.

The above prior art solutions have the following drawbacks: the diameters of the measured vehicle wheels are different in size, the distance between the roller I and the roller II is the same, and the contact area between the wheels and the roller I and the roller II is small, so that the wheels cannot be used.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vehicle braking bench test device conveniently adjusts the interval between first gyro wheel and the second gyro wheel, makes its wheel that is applicable to various diameters.

The above technical purpose of the present invention can be achieved by the following technical solutions: the vehicle brake bench test device comprises two groups of rolling assemblies with the same structure, wherein each rolling assembly comprises a fixed frame, two first placing plates arranged in the fixed frame, a first rotating shaft penetrating through the first placing plates on two sides, a first roller sleeved at one end of the first rotating shaft, two second placing plates arranged in the fixed frame, a second rotating shaft penetrating through the second placing plates on two sides, a second roller sleeved on the upper part of the second rotating shaft, and a first belt wheel arranged at one end of the first rotating shaft, wherein a second belt wheel is sleeved at one end of the second rotating shaft, a belt is sleeved between the first belt wheel and the second belt wheel, a motor for driving the first rotating shaft to rotate is arranged in the fixed frame, the bottoms of the two second placing plates are connected through a connecting plate, a first adjusting assembly is arranged on the connecting plate, and the first adjusting assembly comprises a first square block fixedly connected to one side, far away from the first roller, of the connecting plate, The second square block and the first screw rod are fixedly connected to the upper portion of the inner bottom surface of the fixing frame, the second square block is inserted into the threads, one end of the first screw rod is rotatably connected to the inside of the first square block, the first screw rod penetrates through the vertical side wall of the fixing frame and extends out of the fixing frame, and the ejecting assembly is arranged in the fixing frame.

By adopting the technical scheme, the wheels drive to the upper part of the ejection assembly, the ejection assembly descends to enable the wheels to be positioned on the first idler wheel and the second idler wheel, the motor drives the first rotating shaft to rotate, the first rotating shaft drives the second rotating shaft to rotate through the belt, the first rotating shaft drives the first idler wheel to rotate, and the second rotating shaft drives the second idler wheel to rotate; the first screw rod is rotated, when the first screw rod is rotated, the first square block moves towards the second square block, at the moment, the connecting plate drives the second placing plate to move towards the side far away from the first roller wheel, and the belt is adjusted to adapt to the adjusted distance between the first belt wheel and the second belt wheel; the distance between the first roller and the second roller can be conveniently adjusted, so that the wheel is suitable for wheels with various diameters.

The utility model is further arranged in that a second adjusting component is arranged in the fixed frame, the second adjusting component comprises a third belt wheel arranged between the first belt wheel and the second belt wheel, a third rotating shaft passing through the third belt wheel, third placing plates respectively connected at two ends of the third rotating shaft, thread grooves arranged at the bottom of the third placing plates at two sides, square plates connected at the inner bottom surface of the fixed frame and matched with the third placing plates, round rods respectively fixedly connected at the upper end surfaces of the square plates at two sides, worm wheels respectively sleeved at the upper parts of the round rods at two sides, threaded rods fixedly connected at the middle parts of the worm wheels at two sides and inserted into the thread grooves in a threaded connection manner, a third square block fixedly connected at the inner bottom surface of the fixed frame close to the center of the fixed frame, a fourth square block fixedly connected at the inner bottom surface of the fixed frame far away from the center of the fixed frame, a second screw rod which is inserted into the fourth square block in a threaded connection manner with one end, and worms are arranged on one side of the second screw rod opposite to the worm wheel.

Through adopting above-mentioned technical scheme, because when using, remove the back to the second gyro wheel, the chain needs adjust this moment, for the convenience of adjusting the degree of progress of opening of chain, so be provided with the third band pulley. During the use, rotating second pole bolt, the second screw rod drives the worm and rotates when pivoted, drives the worm wheel and rotates when the worm pivoted, and the worm wheel rotates and drives the threaded rod and rotate, and the threaded rod rotates in the thread groove to make the third place the board and accomplish the lift, just make the belt be in suitable tensioning state.

The utility model discloses further set up to, the bottom of connecting plate is connected with the T-shaped piece of two inversions, the interior bottom surface department of fixed frame offers the T-shaped groove that is used for placing the T-shaped piece, a plurality of tight pieces of supporting have been placed to T-shaped inslot portion, the tight piece of supporting is located one side department that first gyro wheel was kept away from to the T-shaped piece, one side department that first gyro wheel was kept away from in the T-shaped groove has seted up the opening.

Through adopting above-mentioned technical scheme, because when using, the wheel of car is placed between first gyro wheel and second gyro wheel, and the gravity of wheel can be extruded the second gyro wheel to the one side of keeping away from first gyro wheel, so has placed a plurality of pieces of supporting in the inside of keeping away from first gyro wheel in the T-slot, strengthens the stability of T-shaped piece and fixed frame.

The utility model discloses further set up to, opening upper portion lid is equipped with the apron.

Through adopting above-mentioned technical scheme, the apron is established to the opening upper cover, reduces the probability of butt joint piece from the opening part roll-off, and is whole comparatively stable.

The utility model discloses further set up to, T-shaped inslot portion is provided with the spring, the one end of spring and one side department butt that the T-shaped piece is close to first gyro wheel, the other end and the lateral wall butt in T-shaped groove.

Through adopting above-mentioned technical scheme, in order to further increase the stability of T-shaped piece, reduce and take place to rock the appearance of the condition when adjusting to the second gyro wheel, so be provided with the spring in the one end department that the T-shaped groove is close to first gyro wheel.

The utility model discloses further set up to, two the middle part of fixed frame is provided with the U-shaped frame of inversion.

Through adopting above-mentioned technical scheme, set up the U-shaped frame of inversion, can not mix with the dust between making two fixed frames.

The utility model discloses further set up to, ejecting subassembly includes that two cylinders of fixed connection bottom surface department, connection are established at the roof at two piston rod tops at the piston rod at both sides cylinder top, lid in fixed frame.

Through adopting above-mentioned technical scheme, after detecting the wheel and finishing, the wheel need roll out between first gyro wheel and the second gyro wheel, opens the cylinder, and the cylinder is with wheel jack-up, and the wheel alright is rolled away from on first gyro wheel and the second gyro wheel from this moment, accomplishes and detects.

The utility model discloses further set up to, one side of motor is provided with the derailleur.

Through adopting above-mentioned technical scheme, set up the derailleur, according to the rotational speed of opportunity in service behavior control first gyro wheel.

To sum up, the utility model discloses following beneficial effect has:

1. The first adjusting assembly is used for adjusting the distance between the second roller and the first roller, so that the applicability is good;

2. The second adjusting component is arranged to conveniently adjust the tension degree of the belt, so that the belt is used for the first belt wheel and the second belt wheel;

3. set up T-shaped piece and T-shaped groove, it is comparatively inseparable to make the second place the board and be connected between connecting plate and the fixed frame, and live time is longer.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic diagram of an embodiment showing a rolling assembly and a first adjustment assembly;

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Reference numerals: 1. a rolling component; 11. a fixing frame; 12. a first placing plate; 121. a first rotating shaft; 122. a first roller; 123. a first pulley; 13. a second placing plate; 131. a second rotating shaft; 132. a second roller; 133. a second pulley; 14. a connecting plate; 141. a T-shaped block; 142. a T-shaped slot; 143. an opening; 144. a cover plate; 145. a propping block; 146. a spring; 15. a belt; 151. a motor; 152. a transmission; 16. a U-shaped frame; 2. a first adjustment assembly; 21. a first square block; 22. a second square block; 23. a first screw; 3. a second adjustment assembly; 31. a third belt pulley; 311. a third rotating shaft; 312. a third placing plate; 32. a square plate; 321. a round bar; 322. a worm gear; 323. a threaded rod; 33. a third square block; 331. a fourth square block; 34. a second screw; 341. a worm; 4. ejecting the assembly; 41. a cylinder; 42. a piston rod; 43. a top plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-2, for the utility model discloses a vehicle braking bench test device, including two sets of rolling assemblies 1 that the structure is the same, rolling assembly 1 places board 13, second axis of rotation 131, second gyro wheel 132, first band pulley 123, second band pulley 133, belt 15, motor 151 including fixed frame 11, first placing board 12, first axis of rotation 121, first gyro wheel 122, second including the fixed frame. The fixed frame 11 is a square frame with an opening 143 at the top; the first placing plates 12 are both fixedly connected to the upper part of the inner bottom surface of the fixed frame 11; a first rotating shaft 121 is inserted between the two first placing plates 12, the first rotating shaft 121 extending in the longitudinal direction of the fixing frame 11; the first roller 122 is fixedly sleeved outside the first rotating shaft 121; the second placing plates 13 are arranged and both fixedly placed at the inner bottom surface of the fixing frame 11; the second rotating shaft 131 is inserted between the two second placing plates 13; the second roller 132 is fixedly sleeved on the second rotating shaft 131; the first pulley 123 is fixedly sleeved at one end of the first rotating shaft 121; the second pulley 133 is fixedly sleeved at one end of the second rotating shaft 131; the belt 15 is sleeved between the first belt wheel 123 and the second belt wheel 133; the motor 151 is disposed on a side wall of the fixed frame 11, the motor 151 drives the first rotating shaft 121 to rotate, one end of the motor 151 is provided with a transmission 152, and the inverted U-shaped frame 16 is covered between the two fixed frames 11.

Referring to fig. 2, the bottoms of the two second placing plates 13 are connected by a connecting plate 14, a first adjusting assembly 2 is arranged on the connecting plate 14, and the first adjusting assembly comprises a first square block 21, a second square block 22 and a first screw 23. The first square block 21 is fixedly connected to one side of the connecting plate 14 away from the first roller 122; the second square block 22 is fixedly connected to the inner bottom surface of the fixed frame 11 and is located at one side of the first square block 21 away from the first roller 122; the first screw 23 is threaded through the second square block 22, one end of the first screw 23 is clamped in the first square block 21 and rotates relative to the first square block 21, and the other end of the first screw 23 rotates to penetrate through the vertical side wall of the fixed frame 11.

Referring to fig. 3, a second adjusting assembly 3 is disposed inside the fixed frame 11 between the first pulley 123 and the second pulley 133, and the second adjusting assembly 3 includes a third pulley 31, a third rotating shaft 311, a third placing plate 312, a screw groove, a square plate 32, a round bar 321, a worm wheel 322, a screw bar 323, a third square block 33, a fourth square block 331, a second screw 34, and a worm 341. The third pulley 31 is located between the first pulley 123 and the second pulley 133; the third rotating shaft 311 is inserted between the third pulleys 31; the third placing plate 312 is rotatably connected at both ends of the third rotating shaft 311; the thread grooves are respectively formed at the bottoms of the third placing plates 312 at both sides; the two square plates 32 are fixedly connected to the inner bottom surface of the fixing frame 11 and located at the bottom of the third placing plate 312; the round rods 321 are respectively fixedly connected to the upper end faces of the square plates 32 on the two sides; the two worm gears 322 are respectively sleeved on the upper part of the round rod 321; two threaded rods 323 are respectively and fixedly connected to the center of the worm wheel 322; the third square block 33 is fixedly connected to the inner bottom surface of the fixed frame 11 and is far away from the center of the fixed frame 11; the fourth square block 331 is fixedly attached at the inner bottom surface of the fixing frame 11 away from the center of the fixing frame 11; the second screw 34 penetrates through the fourth square block 331 in a threaded manner and is rotatably clamped in the third square block 33, and the second screw 34 rotates relative to the third square block 33 and cannot be separated; the worm 341 is sleeved on the second screw 34 and engaged with the worm wheel 322.

Referring to fig. 2, in order to make the connecting plate 14 more stable when in use, and reduce the probability of the second roller 132 being damaged, two inverted T-shaped blocks 141 are fixedly connected to the bottom of the connecting plate 14, a T-shaped groove 142 matched with the T-shaped block 141 for use is formed in the inner bottom surface of the fixing frame 11, an opening 143 for placing the T-shaped block 141 into the T-shaped groove 142 is formed in one end of the T-shaped groove 142 far away from the first roller 122, a cover plate 144 covers the opening 143, and the cover plate 144 is connected to the fixing frame 11 through a bolt.

Referring to fig. 2, when the vehicle is used, the wheels of the vehicle are placed between the first roller 122 and the second roller 132, and the gravity of the wheels presses the second roller 132 to the side away from the first roller 122, so that a plurality of abutting blocks 145 are placed inside the T-shaped groove 142 away from the first roller 122, thereby enhancing the stability of the T-shaped block 141 and the fixed frame 11.

Referring to fig. 3, in order to further increase the stability of the T-block 141 and reduce the occurrence of shaking of the second roller 132 during adjustment, a spring 146 is provided at one end of the T-shaped groove 142 near the first roller 122.

Referring to fig. 2, after the wheel is detected, the wheel needs to be driven out between the first roller 122 and the second roller 132, so that the ejection assembly 4 is disposed inside the fixed frame 11 between the first roller 122 and the second roller 132, and the ejection assembly 4 includes a cylinder 41 fixedly connected to the inner bottom surface of the fixed frame 11, a piston rod 42 connected to the top of the cylinder 41, and a top plate 43 covering the top of the two piston rods 42.

In the embodiment, when the lifting device is used, the air cylinder 41 ejects the top plate 43, the wheels are located on the top of the top plate 43, the air cylinder 41 drives the top plate 43 to descend, so that the wheels are located on the first roller 122 and the second roller 132, the motor 151 drives the first rotating shaft 121 to rotate, the first rotating shaft 121 drives the second rotating shaft 131 to rotate through the belt 15, the first rotating shaft 121 drives the first roller 122 to rotate, and the second rotating shaft 131 drives the second roller 132 to rotate; the first screw 23 is rotated, when the first screw 23 is rotated, the first square block 21 moves towards the second square block 22, and at the moment, the connecting plate 14 drives the second placing plate 13 to move towards the side far away from the first roller 122; the second screw 34 is rotated to adjust the tension of the belt 15 by the third pulley 31.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A vehicle brake bench test device comprises two groups of rolling assemblies (1) with the same structure, wherein each rolling assembly (1) comprises a fixed frame (11), two first placing plates (12) arranged in the fixed frame (11), a first rotating shaft (121) penetrating through the first placing plates (12) on two sides, a first roller (122) sleeved at one end of the first rotating shaft (121), two second placing plates (13) arranged in the fixed frame (11), a second rotating shaft (131) penetrating through the second placing plates (13) on two sides, a second roller (132) sleeved at the upper part of the second rotating shaft (131), and a first belt wheel (123) arranged at one end of the first rotating shaft (121), one end of the second rotating shaft (131) is sleeved with a second belt wheel (133), and a belt (15) is sleeved between the first belt wheel (123) and the second belt wheel (133), fixed frame (11) inside is provided with first axis of rotation of drive (121) pivoted motor (151), its characterized in that: two the bottom that board (13) were placed to the second is passed through connecting plate (14) and is connected, be provided with first adjusting part (2) on connecting plate (14), first adjusting part (2) including fixed connection keep away from first gyro wheel (122) first square piece (21) of one side department in connecting plate (14), fixed connection in fixed frame (11) the interior bottom surface upper portion the second square piece (22), screw insert second square piece (22) and one end rotate connect the first screw rod in first square piece (21) inside, first screw rod passes fixed frame (11) vertical lateral wall and stretches out fixed frame (11) outside, be provided with ejecting subassembly (4) in fixed frame (11).

2. The vehicle brake stand test device of claim 1, wherein: the inner part of the fixed frame (11) is also provided with a second adjusting component (3), the second adjusting component (3) comprises a third belt wheel (31) arranged between the first belt wheel (123) and the second belt wheel (133), a third rotating shaft (311) penetrating through the third belt wheel (31), third placing plates (312) respectively connected to two ends of the third rotating shaft (311), thread grooves formed in the bottoms of the third placing plates (312) on two sides, square plates (32) connected to the inner bottom surface of the fixed frame (11) and matched with the third placing plates (312), round rods (321) respectively fixedly connected to the upper end surfaces of the square plates (32) on two sides, worm gears (322) respectively sleeved on the upper parts of the round rods (321) on two sides, threaded rods (323) fixedly connected to the worm gears (322) on two sides and inserted into the thread grooves in a threaded manner, a third part (33) fixedly connected to the inner bottom surface of the fixed frame (11) and close to the center of the fixed frame (11), and a screw rod (321), The second screw rod is fixedly connected with a fourth square block (331) which is far away from the center of the fixing frame (11) and is arranged on the inner bottom surface of the fixing frame (11), the second screw rod (34) is inserted into the fourth square block (331) in a threaded mode, one end of the second screw rod (34) is rotatably connected to the inside of the third square block (33), and a worm (341) is arranged on one side, opposite to the worm wheel (322), of the second screw rod (34).

3. A vehicle brake stand test apparatus according to claim 2, wherein: the bottom of connecting plate (14) is connected with two T-shaped blocks (141) of invering, the interior bottom surface department of fixed frame (11) offers T-shaped groove (142) that is used for placing T-shaped block (141), a plurality of pieces of supporting (145) have been placed to T-shaped groove (142) inside, support piece (145) and be located one side department that first gyro wheel (122) was kept away from to T-shaped block (141), one side department that first gyro wheel (122) was kept away from in T-shaped groove (142) has seted up opening (143).

4. a vehicle brake stand test apparatus according to claim 3, wherein: a cover plate (144) is covered on the upper part of the opening (143).

5. A vehicle brake stand test apparatus according to claim 3, wherein: a spring (146) is arranged in the T-shaped groove (142), one end of the spring (146) is abutted with one side of the T-shaped block (141) close to the first roller (122), and the other end of the spring is abutted with the side wall of the T-shaped groove (142).

6. The vehicle brake stand test device of claim 1, wherein: the middle parts of the two fixing frames (11) are provided with inverted U-shaped frames (16).

7. The vehicle brake stand test device of claim 1, wherein: the ejection assembly (4) comprises two air cylinders (41) fixedly connected to the inner bottom surface of the fixing frame (11), piston rods (42) connected to the tops of the air cylinders (41) on the two sides, and a top plate (43) covered on the tops of the two piston rods (42).

8. The vehicle brake stand test device of claim 1, wherein: and a transmission (152) is arranged on one side of the motor (151).