A sand-bonded cylinder clamping device

Abstract

The utility model relates to a kind of sand-bonding roller clamping devices for automobile detection equipment technical field, including pedestal, the pedestal is equipped with up-down driving mechanism, the output end of the up-down driving mechanism is equipped with clamping mechanism, the up-down driving mechanism drives clamping mechanism to move up and down along limiting mechanism, the up-down driving mechanism moves up when driving mechanism upper end opens, the up-down driving mechanism moves down when driving mechanism upper end locks the rotation shaft of the two ends of sand-bonding roller clamping, clamps.The sand-bonding roller clamping device of the utility model utilizes up-down driving mechanism, clamping mechanism and limiting structure cooperation, realizes the clamping fixation of sand-bonding roller, easy to disassemble, save time and effort, improve operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing equipment technology, specifically to a sand-adhesive roller clamping device. Background Technology

[0002] A sand-adhesive roller is a cylindrical roller with a special sand-adhesive layer on its surface. Through friction and interaction with the wheel, it converts the mechanical force during braking into a measurable electrical signal, thereby assessing the vehicle's braking performance. Currently, sand-adhesive rollers are connected to the drive disc at both ends via bushings. When the roller wears out and needs replacement, the drive disc and bushings must be disassembled before the roller can be removed, which is time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a sand-sticking roller clamping device, which can easily and quickly remove the sand-sticking roller and improve the disassembly and assembly efficiency.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is: A sand-sticking roller clamping device includes a base, on which a vertical drive mechanism is provided. The output end of the vertical drive mechanism is provided with a clamping mechanism. The vertical drive mechanism drives the clamping mechanism to move up and down along a limiting mechanism. When the vertical drive mechanism moves upward, the clamping mechanism opens along the upper end of the limiting mechanism. When the vertical drive mechanism moves downward, the clamping mechanism locks the rotating shafts at both ends of the sand-sticking roller along the upper end of the limiting mechanism.

[0005] Preferably, the clamping mechanism includes a pair of locking wheels correspondingly arranged at the upper end, and a driving wheel and a driven wheel at the lower end. The driving wheel and the driven wheel move up and down along the limiting mechanism, and the pair of locking wheels move symmetrically left and right along the limiting mechanism to open or lock in order to disassemble or clamp the sand-adhesive roller.

[0006] Preferably, the limiting mechanism includes a limiting plate, which is fixed on the base. The pins of the clamping mechanism are correspondingly installed on the limiting plate. The limiting plate is provided with vertical grooves and horizontal grooves. The pins of the driving wheel and the driven wheel are axled in the vertical grooves, and the pins of the locking wheel are axled in the horizontal grooves.

[0007] Preferably, the vertical groove is a vertically arranged groove, and the horizontal groove is a horizontally arranged groove or a symmetrically inclined groove that is arranged inward and downward.

[0008] Preferably, a pull plate is provided between the axle pin of the driven wheel and the axle pin of the locking wheel on the same side, and a pull plate is provided between the axle pin of the drive wheel and the axle pin of the locking wheel on the other side.

[0009] Preferably, the driving mechanism is a cylinder, and the output end of the cylinder is provided with a tension plate, which is respectively connected to the shaft pin of the driving wheel and the shaft pin of the driven wheel.

[0010] Preferably, the sand-sticking roller clamping device consists of two sets arranged symmetrically on the left and right, with the two sets cooperating to clamp the rotating shafts at both ends of the sand-sticking roller.

[0011] Preferably, the drive wheel is externally connected to a rotary drive device to drive the drive wheel and thus drive the sand-adhesive roller to rotate.

[0012] Preferably, a pre-tightening mechanism is provided between the rotary drive device and the drive wheel, or the output end of the rotary drive device is directly connected to the shaft pin of the drive wheel.

[0013] The advantages of this invention compared to existing technologies are as follows: The sand-sticking roller clamping device of this invention utilizes a clamping mechanism that can move up and down to clamp and fix both ends of the sand-sticking roller. When the clamping mechanism moves upward, a pair of locking wheels at the upper end open; when the clamping mechanism moves downward, a pair of locking wheels retract to clamp and fix the rotating shafts at both ends of the sand-sticking roller. A limiting mechanism restricts the travel of the drive wheel and locking wheels, ensuring precise movement and preventing overload. Simultaneously, the drive wheel is connected to a rotary drive mechanism, connecting the power to the drive wheel, thus solving the problem of time-consuming and labor-intensive disassembly when the drive is directly connected to the sand-sticking roller. This sand-sticking roller clamping device of this invention utilizes the cooperation of the upper and lower drive mechanisms, the clamping mechanism, and the limiting structure to achieve clamping and fixing of the sand-sticking roller, making disassembly and disassembly convenient, saving time and labor, and improving assembly and disassembly efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the locking state according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the open state of an embodiment of this utility model; Figure 3 This is a schematic diagram of the limiting plate in an embodiment of this utility model; Figure 4 This is a schematic diagram of the locking state according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the open and used state of an embodiment of this utility model.

[0015] Reference numerals in the attached drawings: 1. Base, 2. Limiting plate, 21. Vertical groove, 22. Horizontal groove, 3. Locking wheel, 4. Pulling plate, 5. Up and down driving mechanism, 6. Drive wheel, 7. Shaft pin, 8. Tensioning plate, 9. Sand-adhesive roller, 10. Rotating shaft, 11. Driven wheel. Detailed Implementation

[0016] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. However, the embodiments are not intended to limit the present invention. Any similar combinations and variations of the present invention should be included in the protection scope of the present invention.

[0017] like Figure 4 and Figure 5 As shown, a sand-adhesive roller clamping device includes a base 1, which serves as the foundation for fixing the entire mechanism, providing an installation reference and support. The base 1 is equipped with a vertical drive mechanism 5, which is a cylinder providing rapid, high-thrust linear motion. This motion is efficiently converted into a locking clamping action through a limiting mechanism, resulting in a fast response. The output end of the vertical drive mechanism 5 is equipped with a clamping mechanism. The vertical drive mechanism 5 drives the clamping mechanism to move along the limiting mechanism. When the vertical drive mechanism 5 moves upward, the upper end of the clamping mechanism opens; when the vertical drive mechanism 5 moves downward, the upper end of the clamping mechanism locks and clamps the rotating shafts 10 at both ends of the sand-adhesive roller 9.

[0018] like Figure 1 and Figure 2 As shown, the clamping mechanism includes a pair of locking wheels 3 correspondingly arranged at the upper end, and a drive wheel 6 and a driven wheel 11 at the lower end. The drive wheel 6 and the driven wheel 11 move up and down, while the pair of locking wheels 3 move symmetrically left and right to open or lock, thereby disassembling or clamping the sand-adhesive roller 9. The drive wheel 6 provides driving force to the sand-adhesive roller. The locking wheels and drive wheels work together to achieve a self-locking function, maintaining clamping force when the cylinder applies pressure. The design of the locking wheels 3 enables the mechanism to achieve mechanical self-locking in the clamping position, maintaining clamping force even if the cylinder is cut off, ensuring safety and reliability.

[0019] like Figure 3 As shown, the limiting mechanism includes a limiting plate 2, which is fixed on the base 1. The limiting plate 2 precisely controls the stroke of the stretching plate to adapt to different workpiece sizes. The limiting plate restricts the movement stroke of the stretching plate and the locking wheel, ensuring accurate action range and preventing overload. The limiting plate 2 is provided with a vertical groove 21 and a horizontal groove 22. The vertical groove 21 is a vertically arranged groove, and the horizontal groove 22 is a horizontally arranged groove or a symmetrically inclined groove that slopes inward and downward. The axle pins 7 of the driving wheel 6 and the driven wheel 11 are axled in the vertical groove 21, and the axle pin 7 of the locking wheel 3 is axled in the horizontal groove 22. A pull plate 4 is provided between the axle pin 7 of the driven wheel 11 and the axle pin 7 of the locking wheel 3 on the same side, and a pull plate 4 is provided between the axle pin 7 of the driving wheel 6 and the axle pin 7 of the locking wheel 3 on the other side.

[0020] Pin 7 serves as a hinge point, connecting components such as the pull plate, drive wheel, and locking wheel, providing rotational freedom. The hinge at pin 7 reduces motion friction and improves positioning accuracy. Limit plates and tension plates utilize mechanical limits to prevent overtravel, and a self-locking function prevents accidental loosening. The multi-link structure distributes the load, while the base and limit plates provide stable support, making it suitable for high-load applications.

[0021] The output end of the cylinder is provided with a tension plate 8, which is shaft-connected to the shaft pin 7 of the drive wheel 6 and the driven wheel 11, respectively. This embodiment adopts a modular design such as detachable pins and cylinders, which facilitates the replacement of vulnerable parts and reduces maintenance costs.

[0022] In use, the sand-adhesive roller clamping device consists of two sets arranged symmetrically on the left and right, which cooperate with each other to clamp the rotating shafts 10 at both ends of the sand-adhesive roller 9.

[0023] The power source for the drive wheel is an external rotary drive device that drives the drive wheel 6, which in turn drives the sand-adhesive roller 9 to rotate. A pre-tightening mechanism is provided between the rotary drive device and the drive wheel 6, or the output end of the rotary drive device is directly connected to the shaft pin 7 of the drive wheel 6. The pre-tightening mechanism used here is conventional technology in the art, and therefore is not described in detail in the specific embodiments and accompanying drawings.

[0024] Regarding the connection method: the cylinder is fixed to the base with bolts, and the limiting plate is fixed to the base with bolts or welding. The drive wheel, locking wheel, pull plate, and pin 7 are respectively connected by shafts to form a rotatable linkage mechanism. The tension plates may be connected to each other by pins or shafts. The cylinder piston rod is directly hinged to the drive wheel, converting linear thrust into rotational torque. The tension plate may slide within the base guide rail or the groove of the limiting plate to ensure linear motion accuracy.

[0025] When the cylinder moves upward, it drives the drive wheel and driven wheel upward along the vertical groove, while a pair of locking wheels open outward along the horizontal groove, allowing the sand-adhesive roller to be removed. When locking, the cylinder moves downward, driving the drive wheel and driven wheel downward along the vertical groove, while the pair of locking wheels move inward along the horizontal groove to lock the shaft of the sand-adhesive roller. The rotation drive device then drives the drive wheel, which in turn drives the sand-adhesive roller to rotate. In this embodiment, the sand-adhesive roller clamping device, through the cooperation of the cylinder, locking wheels, and drive wheel, facilitates easy disassembly of the sand-adhesive roller. Furthermore, the power is connected to the drive wheel, solving the problem of tedious disassembly and replacement when changing the sand-adhesive roller, thus improving efficiency.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A sand-adhesive roller clamping device, comprising a base (1), characterized in that: The base (1) is provided with an up-down driving mechanism (5). The output end of the up-down driving mechanism (5) is provided with a clamping mechanism. The up-down driving mechanism (5) drives the clamping mechanism to move along the limiting mechanism. When the up-down driving mechanism (5) moves upward, the clamping mechanism opens along the upper end of the limiting mechanism. When the up-down driving mechanism (5) moves downward, the clamping mechanism locks the rotating shafts (10) at both ends of the sand-sticking roller (9) along the upper end of the limiting mechanism.

2. The sand-adhesive roller clamping device according to claim 1, characterized in that: The clamping mechanism includes a pair of locking wheels (3) correspondingly arranged at the upper end, and a driving wheel (6) and a driven wheel (11) at the lower end. The driving wheel (6) and the driven wheel (11) move up and down along the limiting mechanism, and the pair of locking wheels (3) move symmetrically left and right along the limiting mechanism to open or lock in order to disassemble or clamp the sand-sticking roller (9).

3. The sand-adhesive roller clamping device according to claim 2, characterized in that: The limiting mechanism includes a limiting plate (2), which is fixed on the base (1). The limiting plate (2) is provided with a vertical groove (21) and a horizontal groove (22). The pin (7) of the clamping mechanism is installed on the limiting plate (2). The pins (7) of the driving wheel (6) and the driven wheel (11) are connected in the vertical groove (21). The pin (7) of the locking wheel (3) is connected in the horizontal groove (22).

4. The sand-adhesive roller clamping device according to claim 3, characterized in that: The vertical groove (21) is a groove set vertically up and down, and the horizontal groove (22) is a groove set horizontally or symmetrically inclined inward and downward.

5. The sand-adhesive roller clamping device according to claim 4, characterized in that: A pull plate (4) is provided between the axle pin (7) of the driven wheel (11) and the axle pin (7) of the locking wheel (3) on the same side, and a pull plate (4) is provided between the axle pin (7) of the drive wheel (6) and the axle pin (7) of the locking wheel (3) on the other side.

6. The sand-adhesive roller clamping device according to claim 5, characterized in that: The driving mechanism (5) is a cylinder, and the output end of the cylinder is provided with a tension plate (8). The tension plate (8) is connected to the shaft pin (7) of the driving wheel (6) and the shaft pin (7) of the driven wheel (11) respectively.

7. A sand-adhesive roller clamping device according to any one of claims 1-6, characterized in that: The sand-sticking roller clamping device consists of two sets arranged symmetrically on the left and right, which cooperate with each other to clamp the rotating shafts (10) at both ends of the sand-sticking roller (9).

8. A sand-adhesive roller clamping device according to any one of claims 2-6, characterized in that: The drive wheel (6) is connected to an external rotation drive device, which drives the drive wheel (6) and in turn drives the sand-sticking roller (9) to rotate.

9. A sand-adhesive roller clamping device according to claim 8, characterized in that: A pre-tightening mechanism is provided between the rotary drive device and the drive wheel (6), or the output end of the rotary drive device is directly connected to the shaft pin (7) of the drive wheel (6).

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