Fixing device for lossless installation of half-height platform door synchronous belt
By clamping the timing belt with a fixing device that clamps the base and the clamping plate, the problem of tearing caused by stress concentration around the fixing hole is solved, achieving non-destructive installation, improving the service life of the timing belt and reducing costs.
Patent Information
- Application Number
- CN202520584665.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In existing technologies, synchronous belts are prone to stress concentration around the fixing holes, leading to tearing. Furthermore, the high precision requirements for spare parts supply make it difficult to achieve non-destructive installation.
The device uses a clamping base and a clamping plate to clamp the timing belt by friction, avoiding the need to drill holes in the timing belt. The tension is adjusted by using the fastening connection between the clamping base and the clamping plate, combined with an L-shaped mounting bracket and adjusting bolts.
It enables non-destructive installation of synchronous belts, improves service life and reduces operating costs, and has a simple structure that is easy to process.
Smart Images
Figure CN223781988U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to half height platform door synchronous belt installation field, concretely relates to a kind of fixed device of half height platform door synchronous belt lossless installation. BACKGROUND
[0002] City subway / rail transit half height platform door system is usually driven by synchronous belt, to ensure transmission efficiency, two or more than two through holes are usually set at the both ends of synchronous belt according to certain size to pass through fixing bolt, as shown in Figure Figures 1 to 4 With the increase of use time and long-term axial stress, stress concentration is formed around the fixing hole, which causes tearing and damage around the hole. At the same time, because of the precision requirement of synchronous belt length and hole position, it has a great impact on the supply of spare parts. Especially, the current urban rail transit platform door project is gradually changing from new line to technical modification of old line, which can use the existing fixed interface of sliding door, and the synchronous belt can meet the requirement of lossless installation.
[0003] Therefore, a device capable of meeting the lossless installation of synchronous belt is needed. SUMMARY
[0004] The utility model aims at the deficiency of prior art, and provides a kind of fixed device of half height platform door synchronous belt lossless installation.This fixed device can meet the requirement of lossless installation of synchronous belt.
[0005] The utility model aims at the following scheme: a kind of fixed device of half height platform door synchronous belt lossless installation, including synchronous belt, transmission device and fixed device, the both ends of synchronous belt are fixed in the lower end of sliding door lower crossbeam by fixed device, the middle section of synchronous belt is installed in the motor driving wheel of transmission device, the fixed device includes compression base, compression plate, the lower part of compression base is provided with compression plate, the left and right sides of compression base are provided with threaded hole, the left and right sides of compression plate are provided with through hole, compression base and compression plate are connected and fixed by compression plate fixed screw, the middle part of compression base is provided with counterbore, base fixed screw passes through counterbore and connects and fixes compression base and sliding door lower crossbeam in transmission device, base fixed screw is arranged above synchronous belt, the space between each compression plate fixed screw, base fixed screw, compression base and compression plate is the space of the both ends of synchronous belt, and compression plate fixed screw and base fixed screw are compressed in the both ends of synchronous belt between compression base and compression plate to form fastening connection.
[0006] The left and right sides of compression base are provided with threaded hole, and the left and right sides of compression plate are provided with through hole.
[0007] The middle part of the compression base is provided with a counterbore at the front and rear ends.
[0008] The motor driving wheel in the transmission device is provided with a synchronous gear meshing with the synchronous belt.
[0009] The L-shaped mounting bracket is connected and fixed with the lower cross beam of the sliding door through adjusting bolts and locking nuts at the end of the mounting bracket.
[0010] The utility model discloses the advantages lie in: the friction force of compression base and compression plate compression is clamped synchronous belt, need not open the hole on synchronous belt, and the risk of breaking synchronous belt because of destroying synchronous belt is avoided, the service life of synchronous belt is greatly improved, the use cost of synchronous belt is reduced, and the fixed device structure is simple, and easy to process. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the prior art plan view;
[0012] Figure 2 It is the prior art front view;
[0013] Figure 3 It is Figure 2 the enlarged schematic view of A of the utility model;
[0014] Figure 4 It is Figure 2 the enlarged schematic view of B of the utility model;
[0015] Figure 5 It is the plan view of the utility model;
[0016] Figure 6 It is the front view of the utility model;
[0017] Figure 7 It is Figure 6 the enlarged schematic view of A of the utility model;
[0018] Figure 8 It is Figure 6 the enlarged schematic view of B of the utility model;
[0019] Figure 9 It is the fixed device structure schematic view;
[0020] Figure 10 It is Figure 9 the explosion view of C of the utility model. DETAILED DESCRIPTION
[0021] As Figures 5 to 10As shown, a kind of fixed device of half-height platform door synchronous belt lossless installation, including synchronous belt 1, transmission device a and fixed device b, the lower end of the lower crossbeam 6 of sliding door is fixed in two ends of synchronous belt 1 respectively by fixed device b, the middle section of synchronous belt 1 is installed in motor driving wheel 7 of transmission device a, the fixed device b includes pressing base 2, pressing plate 3, the pressing plate 3 is arranged in the lower of pressing base 2, the left and right sides front and rear end of pressing base 2 is provided with threaded hole, the left and right sides front and rear end of pressing plate 3 is provided with through hole, each threaded hole and through hole correspond to each other.Pressing base 2 and pressing plate 3 are connected and fixed by pressing plate fixing screw 4, the middle part of pressing base 2 is provided with counterbore, the middle part of pressing base 2 is provided with counterbore respectively in front and rear end.Base fixing screw 5 is connected and fixed by pressing base 2 and the lower crossbeam 6 in transmission device a, the base fixing screw 5 is arranged above synchronous belt 1, the space between each pressing plate fixing screw 4, base fixing screw 5, pressing base 2 and pressing plate 3 is the space for installing the two ends of synchronous belt 1, pressing plate fixing screw 4 and base fixing screw 5 are tightly connected between the two ends of synchronous belt 1 and pressing base 2 and pressing plate 3 to form fastening connection.The motor driving wheel 7 in transmission device a is provided with synchronous tooth and is engaged with synchronous belt 1.The L-shaped mounting bracket 8 is arranged between pressing base 2 and the lower crossbeam 6 of sliding door, the end of mounting bracket 8 is connected and fixed with the lower crossbeam 6 of sliding door by adjusting bolt 9 and locking nut 10, and the tension of synchronous belt 1 is adjusted by adjusting bolt 9 and locking nut 10.
[0022] The synchronous belt 1 is clamped by the friction force generated by pressing base 2 and pressing plate 3, and there is no need to open hole on synchronous belt 1.
[0023] The above only for the preferred embodiment of the present application, and not for limiting the present application, the person skilled in the art makes the change to the present application without departing from the spirit of the present application, and all falls into the protection scope of the present application.
Claims
1. A fixing device for non-destructive installation of a synchronous belt on a semi-high platform screen door, comprising a synchronous belt (1), a transmission device (a), and a fixing device (b), wherein both ends of the synchronous belt (1) are fixed to the lower end of the lower beam (6) of the sliding door via the fixing device (b), and the middle section of the synchronous belt (1) is installed in the motor drive wheel (7) of the transmission device (a), and the fixing device (b) comprises a pressing base (2) and a pressing plate (3), characterized in that: A pressing plate (3) is provided below the pressing base (2). Threaded holes are provided on the left and right sides of the pressing base (2). Through holes are provided on the left and right sides of the pressing plate (3). The pressing base (2) and the pressing plate (3) are connected and fixed by the pressing plate fixing screw (4). A countersunk hole is provided in the middle of the pressing base (2). The base fixing screw (5) passes through the countersunk hole to connect and fix the pressing base (2) to the sliding door lower crossbeam (6) in the transmission device (a). The base fixing screw (5) is set above the synchronous belt (1). The space between each pressing plate fixing screw (4), the base fixing screw (5), the pressing base (2) and the pressing plate (3) is the space for installing the two ends of the synchronous belt (1). The pressing plate fixing screw (4) and the base fixing screw (5) press the two ends of the synchronous belt (1) between the pressing base (2) and the pressing plate (3) to form a tight connection.
2. The fixing device for non-destructive installation of the synchronous belt for a half-height platform screen door according to claim 1, characterized in that: The pressing base (2) has threaded holes on both the front and rear ends of its left and right sides, and the pressing plate (3) has through holes on both the front and rear ends of its left and right sides, with each threaded hole corresponding to the other through hole.
3. The fixing device for non-destructive installation of the synchronous belt for a half-height platform screen door according to claim 1, characterized in that: The clamping base (2) has countersunk holes at the front and rear ends of the middle section.
4. The fixing device for non-destructive installation of the synchronous belt for a half-height platform screen door according to claim 1, characterized in that: The motor drive wheel (7) in the transmission device (a) is provided with synchronous teeth that mesh with the synchronous belt (1).
5. The fixing device for non-destructive installation of the synchronous belt for a half-height platform screen door according to claim 1, characterized in that: An L-shaped mounting bracket (8) is provided between the pressing base (2) and the lower crossbeam (6) of the sliding door. The end of the mounting bracket (8) is connected and fixed to the lower crossbeam (6) of the sliding door by adjusting bolts (9) and locking nuts (10).