Automobile speed measurement roller device

Abstract

The present invention discloses a vehicle speed measuring roller device, which comprises a base, a bracket and a speed measuring roller. The base includes a main body frame, a first support frame and a second support frame. The first support frame and the second support frame are fixedly arranged on both sides of the main body frame. The bracket includes a first arc plate fixedly connected to the first support frame, a second arc plate fixedly connected to the second support frame and a support square tube. The first arc plate and the second arc plate are opposite and spaced apart, and the support square tube is arranged between the first arc plate and the second arc plate. The speed measuring roller is rotatably arranged between the first arc plate and the second arc plate. The present invention enables the driving roller not to generate friction with the speed measuring roller bracket when rotating, thereby avoiding noise generation. At the same time, the bracket structure is stable and firm. Moreover, the magnitude of the force exerted by the cylinder on the support square tube can be adjusted through the piston rod of the cylinder to provide a dynamic support force.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive testing equipment and relates to an automotive speed measurement roller device. Background Art

[0002] In the prior art, in the speed measurement roller device of an automotive detection braking inspection bench equipment, the force-bearing support of the speed measurement roller generally adopts the installation of bearings inside the roller. Due to the diameter limitation of the speed measurement roller, only 6203 or 1203 bearings can be selected, and the inner diameter of the bearings is small, the support shaft is thin and the support point is installed on the main shaft of the driving roller. The support part is adjusted and fixed by threads. During the use of the equipment, due to the heavy pressure impact and vibration of the speed measurement roller, the adjustment bolts of the bearing support shaft are often loosened, and the phenomenon that the speed measurement roller slips out of the bearing occurs. When the driving roller rotates, friction is generated between the driving roller and the bearing support shaft of the speed measurement roller, resulting in high-decibel noise, seriously affecting the driver's judgment of the noise source and the normal detection and use of the equipment, and there is a serious product vehicle quality risk.

[0003] Therefore, how to provide a speed measurement roller device structure design with stable structure, convenient disassembly and installation and strong practicability is an urgent problem to be solved in this industry. Summary of the Invention

[0004] In order to solve the problem of measuring noise in the existing speed measurement device, the purpose of the present invention is to provide an automotive speed measurement roller device, so that when the speed measurement roller device measures speed, the driving roller does not generate friction with the speed measurement roller bracket, thereby avoiding the generation of high-decibel noise.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] An automotive speed measurement roller device, comprising:

[0007] A base, including a main body frame, a first support frame and a second support frame, the first support frame and the second support frame are fixedly arranged on both sides of the main body frame;

[0008] A bracket, including a first arc plate fixedly connected to the first support frame, a second arc plate fixedly connected to the second support frame and a support square tube, the first arc plate and the second arc plate are opposite and spaced apart, and the support square tube is arranged between the first arc plate and the second arc plate;

[0009] A speed measurement roller, the speed measurement roller is rotatably arranged between the first arc plate and the second arc plate.

[0010] In one embodiment, mounting holes are respectively provided on the opposite sides of the first arc plate and the second arc plate facing each other. Cylinders adapted to the mounting holes are respectively provided at both ends of the speed measuring roller. A threaded hole is provided in the middle of the cylinder. The cylinder is installed in the mounting hole, and the cylinder is limited by screwing a screw rod into the threaded hole.

[0011] In one embodiment, a cylinder is provided on the main body frame, and a connecting ear is provided on the support square pipe. The piston rod of the cylinder is connected to the connecting ear through a fastener.

[0012] In one embodiment, the bracket further includes a limiting component. The limiting component includes limiting square pipes and limiting support plates that are staggered and face each other, and a connecting piece connected between the limiting square pipes and the limiting support plates. The limiting support plate is fixedly arranged on the main body frame, and one end of the limiting square pipe far from the limiting support plate is connected to the support square pipe.

[0013] In one embodiment, the first support frame and the second support frame are fixedly connected to the main body frame through fasteners.

[0014] In one embodiment, the first arc plate and the second arc plate are arc-shaped and adapted to the shape of the end of the driving roller.

[0015] In one embodiment, the cross section of the support square pipe is rectangular to provide a mounting plane.

[0016] Due to the adoption of the above technical solutions, the beneficial effects obtained by the present invention include: by providing the first arc plate and the second arc plate, the supporting points of the speed measuring roller are separated from the driving roller, so that when the driving roller rotates, it does not rub against the speed measuring roller bracket, thereby avoiding noise. At the same time, by providing the cylinder support square pipe, the bracket structure is stable and firm. In addition, the magnitude of the force exerted by the cylinder on the support square pipe can be adjusted through the piston rod of the cylinder to provide a dynamic supporting force. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the vehicle speed measuring roller device of the present invention.

[0018] Figure 2 is Figure 1 the schematic exploded view of the structure shown.

[0019] 110 - Main frame, 120 - First support frame, 130 - Second support frame, 131 - Base plate, 132 - Support plate, 133 - Rib plate; 210 - First arc plate, 220 - Second arc plate, 230 - Support square tube, 231 - Connecting ear, 240 - Driving roller, 250 - Speed measuring roller, 260 - Screw; 300 - Cylinder; 410 - Limit square tube, 420 - Limit support plate. Detailed implementation mode

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Please refer to Figure 1-2 , an automobile speed measuring roller device, comprising: a base, a bracket and a speed measuring roller 250. The base includes a main frame 110, a first support frame 120 and a second support frame 130. The first support frame 120 and the second support frame 130 are fixedly arranged on both sides of the main frame 110; The bracket includes a first arc plate 210 fixedly connected to the first support frame 120, a second arc plate 220 fixedly connected to the second support frame 130 and a support square tube 230. The first arc plate 210 and the second arc plate 220 are opposite and spaced apart, and the support square tube 230 is arranged between the first arc plate 210 and the second arc plate 220; The speed measuring roller 250 is rotatably arranged between the first arc plate 210 and the second arc plate 220. In one implementation mode, the first support frame 120 and the second support frame 130 are symmetrical to each other. The two ends of the support square tube 230 are respectively welded to the first arc plate 210 and the second arc plate 220. The first end of the first arc plate 210 is fixedly connected to the first support frame 120, the second end of the first arc plate 210 is hinged to one end of the speed measuring roller 250, the first end of the second arc plate 220 is fixedly connected to the second support frame 130, the second end of the second arc plate 220 is hinged to the other end of the speed measuring roller 250, and the first arc plate 210 and the second arc plate 220 are opposite and spaced apart.

[0022] For the above-mentioned automobile speed measuring roller device, the base supports the speed measuring roller 250 alone through the bracket. The shapes of the first arc plate 210 and the second arc plate 220 are arc-shaped and are adapted to the end shapes of the driving roller 240, so that the support points of the speed measuring roller 250 bracket are separated from the driving roller 240 (for the sake of simplicity, the auxiliary platform for installing the driving roller is not shown in the figure), so that no friction occurs between the driving roller 240 and the speed measuring roller 250 bracket when the driving roller 240 rotates, thus avoiding noise. It should be noted that due to the limitation of the existing structural space, the speed measuring roller cannot be directly installed on the auxiliary platform.

[0023] In one embodiment, the speed measuring roller 250 is rotatably connected to the first arc plate 210 and the second arc plate 220 through a screw 260. Mounting holes are respectively provided on the opposite sides of the first arc plate 210 and the second arc plate 220. Cylinders adapted to the mounting holes are respectively provided at both ends of the speed measuring roller 250. Threaded holes are provided in the middle of the cylinders. The cylinders are installed in the mounting holes, and the screw 260 is threadedly connected to the threaded holes to limit the cylinders, that is, the screw 260 passes through the mounting hole and is threadedly connected to the threaded hole so that the speed measuring roller 250 can rotate.

[0024] In one embodiment, a cylinder 300 is provided on the main body frame 110. A connecting ear 231 is provided on the support square tube 230. The piston rod of the cylinder 300 is fixedly connected to the connecting ear 231. In one implementation, a through hole is provided in the connecting ear 231. A transition piece with a connecting hole is installed at the front end of the piston rod of the cylinder 300. The position where the cylinder 300 is fixed on the main body frame corresponds to the position of the connecting ear 231 on the support square tube 230. The length of the piston rod of the cylinder 300 is adjusted so that the transition piece is close to the connecting ear 231 until the through hole and the connecting hole are coaxial. A bolt is passed through the through hole, the connecting hole and connected to a nut, so that the piston rod of the cylinder 300 is fixedly connected to the connecting ear 231. By providing the cylinder 300 to support the support square tube 230, the bracket structure is stable and firm, and the magnitude of the force exerted by the cylinder 300 on the support square tube 230 can be adjusted through the piston rod of the cylinder 300 to provide a dynamic support force. If the bracket structure is unstable, the piston rod can be finely adjusted to increase the support force.

[0025] In order to further make the bracket structure stable and firm, in one embodiment, the roller structure further includes a limiting component. The limiting component includes a limiting square tube 410, a limiting support plate 420, and a connecting piece connecting the limiting square tube 410 and the limiting support plate 420. The limiting square tube 410 and the limiting support plate 420 are arranged in a staggered and opposite manner. The limiting support plate 420 is fixedly arranged on the main body frame 110. One end of the limiting square tube 410 away from the limiting support plate 420 is connected to the support square tube 230. The cross section of the support square tube is rectangular to provide an installation plane.

[0026] For ease of disassembly and installation, in one embodiment, the first support frame 120 and the second support frame 130 are connected to the main body frame 110 by fasteners. The first support frame 120 and the second support frame 130 each include a bottom plate 131, a rib plate 133, and a support plate 132. The bottom plate 131 is connected to the main body frame 110 by fasteners. The support plate 132 is fixedly arranged on the bottom plate. The rib plates 133 are respectively connected to the support plate 132 and the bottom plate 131, and the rib plates 133 are perpendicular to the support plate 132. The strength of the support frame is enhanced by the rib plates 133. Optionally, the shape of the rib plate 132 is triangular or rectangular.

[0027] In one embodiment, the shapes of the first arc plate 210 and the second arc plate 220 are arc-shaped.

[0028] The above relevant descriptions and the descriptions of the embodiments are for the ordinary technical personnel in the technical field to understand and apply the present invention. Obviously, those skilled in the art can easily make various modifications to these contents and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above relevant descriptions and the descriptions of the embodiments. The improvements and modifications made by those skilled in the art according to the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. An automobile speed measurement roller device, characterized in that, it includes: A base, including a main body frame, a first support frame and a second support frame. The first support frame and the second support frame are fixedly arranged on both sides of the main body frame, and the first support frame and the second support frame are fixedly connected to the main body frame through fasteners; A bracket, including a first arc plate fixedly connected to the first support frame, a second arc plate fixedly connected to the second support frame and a support square tube. The first arc plate and the second arc plate are opposite and spaced apart. The support square tube is arranged between the first arc plate and the second arc plate. The shapes of the first arc plate and the second arc plate are arc-shaped and adapted to the end shape of the driving roller; A speed measurement roller, which is rotatably arranged between the first arc plate and the second arc plate.

2. The automobile speed measurement roller device according to claim 1, characterized in that, Mounting holes are respectively arranged on the opposite side surfaces of the first arc plate and the second arc plate. Cylinders adapted to the mounting holes are respectively arranged at both ends of the speed measurement roller. A threaded hole is arranged in the middle of the cylinder. The cylinder is installed in the mounting hole and is limited by screwing a screw rod into the threaded hole.

3. The automobile speed measurement roller device according to claim 1, characterized in that, A cylinder is arranged on the main body frame, a connecting ear is arranged on the support square tube, and the piston rod of the cylinder is connected to the connecting ear through fasteners.

4. The automobile speed measurement roller device according to claim 1, characterized in that, The bracket further includes a limiting component. The limiting component includes limiting square tubes and limiting support plates which are staggered and arranged facing each other, and a connecting piece connecting the limiting square tubes and the limiting support plates. The limiting support plate is fixedly arranged on the main body frame, and the end of the limiting square tube far away from the limiting support plate is connected to the support square tube.

5. The automobile speed measurement roller device according to claim 1, characterized in that, The cross section of the support square tube is rectangular to provide an installation plane.

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