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CN-224226444-U - Synchronous rate tester for escalator handrail

CN224226444UCN 224226444 UCN224226444 UCN 224226444UCN-224226444-U

Abstract

The utility model relates to the technical field of escalator testing, in particular to an escalator handrail belt synchronous rate tester which comprises a handrail belt support, a step support, a handrail belt speed acquisition sensor, a step speed acquisition sensor, an overall fixing support and testing equipment for synchronously testing based on handrail belt speeds and step speeds on two sides, wherein the two handrail belt supports are respectively arranged above the handrail belts on two sides, the handrail belt speed acquisition sensor is fixedly arranged on the handrail belt support, the step support is arranged above an escalator step, the step speed acquisition sensor is fixedly arranged on the step support, and the handrail belt supports and the step support are all fixed on the overall fixing support so as to keep relative position fixation. The utility model is provided with the overall fixing support for fixing the handrail belt support and the ladder support, thereby ensuring that the relative positions of the handrail belt speed acquisition sensor and the ladder speed acquisition sensor are fixed during testing, and ensuring uniform conditions and testing accuracy during testing.

Inventors

  • ZHOU GAOPING
  • ZHANG XUELUN
  • LIAO CHUNBO
  • Yi Guanghu
  • LUO ZHIYUAN

Assignees

  • 重庆品智检验检测有限公司

Dates

Publication Date
20260512
Application Date
20250623

Claims (7)

  1. 1. The escalator handrail synchronous rate tester is characterized by comprising a handrail support (1), a step support (2), a handrail speed acquisition sensor (3) for acquiring handrail speeds at two sides, a step speed acquisition sensor (4) for acquiring step speeds, a total fixed support (5) and test equipment (6) for synchronously testing the handrail speeds at two sides and the step speeds; The handrail belt speed acquisition sensors (3) are fixedly arranged on the handrail belt brackets (1) to acquire the speed of the handrail belt, the ladder brackets (2) are arranged above the steps of the escalator, the ladder speed acquisition sensors (4) are fixedly arranged on the ladder brackets (2) to acquire the speed of the steps, and the handrail belt brackets (1) and the ladder brackets (2) are both fixed on the overall fixed bracket (5) to keep the relative position fixed; The handrail speed acquisition sensor (3) and the step speed acquisition sensor (4) are connected to the test equipment (6).
  2. 2. The escalator handrail synchronization rate tester according to claim 1, wherein the handrail support (1) comprises a main frame (11) with a cross section in a shape of a door and fixedly connected with the fixed support, the main frame (11) is covered on the handrail, a horizontal roller (12) is arranged at the top of the main frame (11), the horizontal roller (12) is contacted with the top surface of the handrail, vertical rollers (13) are further arranged at two sides of the inside of the main frame (11), and the vertical rollers (13) are contacted with two sides of the handrail; the handrail speed acquisition sensor (3) is fixedly arranged at the top of the main frame (11).
  3. 3. The escalator handrail synchronization rate tester according to claim 1, characterized in that the step support (2) comprises a fixed base (21) fixedly connected with the fixed support, a comb plate (23) and a sensor mounting plate (25); The fixed base (21) is provided with a first rotating shaft (22), the first rotating shaft (22) is sleeved with a first torsion spring (26), one side of the comb plate (23) is rotationally connected with the first rotating shaft (22), working arms of the first torsion spring (26) are respectively fixedly connected with the fixed base (21) and the comb plate (23), the middle part of the comb plate (23) is provided with a second rotating shaft (24), the second rotating shaft (24) is sleeved with a second torsion spring (27), one side of the sensor mounting plate (25) is rotationally connected with the second rotating shaft (24), and working arms of the second torsion spring (27) are respectively fixedly connected with the comb plate (23) and the sensor mounting plate (25); The step speed acquisition sensor (4) is fixedly arranged on the sensor mounting plate (25).
  4. 4. A synchronous rate tester for escalator handrail as claimed in claim 3, characterized in that the other side of the comb plate (23) is provided with a comb structure for engaging a step tread.
  5. 5. The escalator handrail synchronization rate tester according to claim 1, wherein the overall fixing bracket (5) comprises a transverse strut and a longitudinal strut, the transverse strut and the longitudinal strut form a T-shaped structure, two handrail belts are respectively fixed at two ends of the transverse strut, and the step bracket (2) is fixed at the other end of the longitudinal strut.
  6. 6. The escalator handrail synchronization rate tester according to claim 2, wherein the handrail speed acquisition sensor (3) comprises an encoder body and a code wheel connected with the encoder body, a slot matched with the code wheel is arranged at the top of the main frame (11), and the edge of the code wheel is contacted with the top of the handrail through the slot.
  7. 7. A meter according to claim 3, characterized in that the step speed pick-up sensor (4) comprises an encoder body and a code wheel connected to the encoder body, the sensor mounting plate (25) is provided with a slot matching the code wheel, and the edge of the code wheel is in contact with the step tread through the slot.

Description

Synchronous rate tester for escalator handrail Technical Field The utility model relates to the technical field of escalator testing, in particular to an escalator handrail belt synchronous rate tester. Background According to the requirements of 5.4.1.2 in GB 16899-2011 safety Specification for manufacturing and installing escalators and moving walkways, the nominal speed of the escalator design is 0.50 m/s-0.75 m/s, the speed is relatively low, the deviation between the actual running speed and the nominal speed is required to be not more than +/-5% (namely, the absolute deviation range of the speed is +/-0.0250 m/s to +/-0.0375 m/s), namely, the running speed is strictly controlled, the deviation requirement is very small, and a relatively precise and stable speed tester is required to accurately measure the speed deviation. According to the requirement of 5.6.1 in GB 16899-2011 safety Specification for manufacturing and installing escalators and moving walkways, the synchronous deviation between the running speed of the handrail and the running speed of the escalator is 0% -2%, for example, the running speed of the handrail is 0.50m/s, the running speed of the handrail is 0.500 m/s-0.510 m/s, the running speed of the escalator is 0.75m/s, and the running speed of the handrail is 0.750 m/s-0.765 m/s. The control of the running speed of the handrail belt is strict and the deviation requirement is very small, so that a precise and stable speed tester is needed to accurately measure the synchronous speed deviation of the handrail belt. According to the requirements of 5.4.2.1.3.2 in GB 16899-2011 safety Specification for manufacturing and installing escalator and moving sidewalk, strict requirements are made on the stopping distance of the escalator, so that a precise and stable tester is required to accurately collect and measure the running distance (namely the stopping distance) from the speed reduction to the stopping stage of the escalator. In order to realize accurate measurement, the used instrument should take a fixed support, and the tester itself is kept stable and not moving during measurement, otherwise, if a small amount of movement exists in the tester during measurement, a larger measurement error is caused, so that the speed and speed deviation cannot be accurately measured, secondly, the running speeds of the handrail belts on two sides and the running speed of the steps should be synchronously measured, because the power supply voltages and frequencies in different time periods may have fluctuation or the running resistance of the escalator may have difference, and the actual running speeds of the escalator in different time periods may have difference, so that the synchronous speed deviation cannot be objectively and truly measured during time-division measurement. Disclosure of utility model Therefore, the utility model aims to provide an escalator handrail synchronous rate tester for solving the technical problems in the background technology. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model relates to an escalator handrail belt synchronous rate tester which comprises a handrail belt bracket, a step bracket, a handrail belt speed acquisition sensor for acquiring handrail belt speeds at two sides, a step speed acquisition sensor for acquiring step speeds, a total fixed bracket and test equipment for synchronously testing the handrail belt speeds at two sides and the step speeds; The handrail belt support is fixedly arranged above the stair steps, the stair speed acquisition sensor is fixedly arranged on the stair support to acquire the speed of the stair steps, and the handrail belt support and the stair support are both fixed on the overall fixed support to keep fixed relative positions; The handrail speed acquisition sensor and the step speed acquisition sensor are connected to the test equipment. In one embodiment of the application, the handrail belt bracket comprises a main frame with a cross section in a shape of a door and fixedly connected with the fixed bracket, wherein the main frame is covered on the handrail belt, the top of the main frame is provided with a horizontal roller, and the horizontal roller is contacted with the top surface of the handrail belt; the handrail belt speed acquisition sensor is fixedly arranged at the top of the main frame. Further, the step support comprises a fixed base, a comb plate and a sensor mounting plate which are fixedly connected with the fixed support; The middle part of the comb plate is provided with a second rotating shaft, a second torsion spring is sleeved on the second rotating shaft, one side of the sensor mounting plate is rotationally connected through the second rotating shaft, and the working arm of the second torsion spring is respectively fixedly connected with the comb plate and the sensor mounting plate; The step speed acquisition sensor is fixedly arra