一种皮带张紧装置
By employing a spring-connected roller assembly and support structure in the belt tensioning device, automatic belt tension adjustment is achieved, solving the problem that traditional tensioning components cannot adapt to changes in belt length, and improving the operational safety and ease of installation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU FAIGLE ENG PLASTIC
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional belt tensioning components are difficult to operate in equipment with limited space, have poor safety, and are difficult to adapt to the complex tensioning performance of equipment with changes in belt length. As a result, they are unable to adapt to changes in belt length under tension force, leading to a decrease in tensioning performance or failure.
A belt tensioning device consisting of a roller assembly, a front support, and a rear support is adopted. The front and rear supports are connected by a spring to achieve automatic tensioning. The belt length is adapted to changes in the extension and contraction of the spring, keeping the belt in a taut state at all times.
It achieves automatic belt tension adjustment to adapt to changes in belt length, keeping the belt always taut, avoiding decreased tension performance or failure, improving operational safety and simplifying the installation process.
Smart Images
Figure CN224512292U_ABST
Abstract
Claims
1. A belt tensioner comprising a roller assembly, a front bracket and a rear bracket, the roller assembly comprising a roller body and a pin shaft, the roller body having one or more rotational supports disposed therein, the pin shaft extending through the rotational supports and the roller body and being carried by the front bracket, characterized in that, The wheel body is installed together with the front support through a connector. The rear support is provided with a telescopic part, which is slidably connected to the front support. A spring is axially arranged inside the front support and the rear support. One end of the spring is fixed to the front support and the other end of the spring is fixed to the rear support.
2. Belt tensioning device according to claim 1, characterized in that The rotating support is a bearing or bushing that rotates around a pivot.
3. Belt tensioning device according to claim 1 or 2, characterized in that The connecting component consists of two clamping components located within the wheel body at both ends. The wheel body is connected to the front support via these two clamping components. Each clamping component has a notch, into which both ends of the pin extend. The front support has a locking notch, and the clamping components have latches that engage within the locking notch. The front support has an axially oriented sliding groove that does not extend to the end of the front support near the rear support. The end of the sliding groove near the rear support has a limiting surface, into which the telescopic part extends. The end of the telescopic part engages with the limiting surface.
4. The belt tensioning device according to claim 3, characterized in that, The front support includes a support arm, which includes a left support arm and a right support arm arranged opposite each other. The left support arm and the right support arm are located on both sides of the front support. A central part is provided behind one end of the left support arm and the right support arm. The sliding groove is located on the inner wall of the central part. The left support arm and the right support arm are respectively provided with a sliding track. The engaging notch is located on the left support arm and the right support arm. A cavity is provided in the central part. A first spring seat is provided at the bottom of the cavity. One end of the spring is fixed to the first spring seat.
5. Belt tensioner according to claim 4, characterized in that The rear support includes a base plate and a sliding part, which are fixed together. Telescopic parts are symmetrically arranged on the upper and lower or left and right sides of the sliding part. The telescopic parts are surrounded by grooves and have protrusions at their front ends. The telescopic parts extend into the sliding groove of the front support and are engaged with the limiting surface. The side of the base plate near the front support is also provided with an axially protruding second spring seat, and the other end of the spring is fixed to the second spring seat.
6. Belt tensioner according to claim 5, characterized in that The base plate is provided with a connecting part.
7. The belt tensioner of claim 5, wherein The pin has a left end section and a right end section at its two ends, and the middle part of the pin located between the left end section and the right end section is the central section. The diameter of the left end section and the right end section is smaller than the diameter of the central section. The cross-section of the left end section and the right end section is elliptical. The shape of the notch is consistent with the cross-sectional shape of the left end section and the right end section.
8. Belt tensioner according to claim 7, characterized in that Multiple grooves are provided on the outer circumferential surface of the central section of the pin. The grooves are axially arranged and extend from one end of the pin to the other end.
9. Belt tensioner according to claim 8, characterized in that The pin is made of engineering plastic, and the clamp, front support, and rear support are also made of engineering plastic.
10. Belt tensioning device according to claim 9, characterized in that The two clamping components are symmetrically arranged on the left and right. Each clamping component includes a flange and a moving part. The flange and one end of the moving part are fixedly connected. The notch is provided on the flange. The moving part slides into the front support along the slide rail of the front support. The buckle is provided on the moving part. A U-shaped groove is provided around the buckle.