Sensor for detecting tensile force of steel belt

Abstract

The utility model relates to the technical field of elevator steel belt detection, and discloses a sensor for detecting the tensile force of a steel belt, which comprises a sensor body and a support, the sensor body is arranged on the support, the support is provided with a fixing frame for fixing the steel belt, the fixing frame is internally provided with a placing groove for placing the steel belt, and the fixing frame is provided with a push plate. And a supporting rod is inserted into the push plate. Through cooperation of a sliding rod and a sliding groove and meshing of an auxiliary rack and an auxiliary gear, deviation of a push plate and a clamping rod when the steel belt is clamped is effectively prevented, the clamping stability is improved, it is ensured that a sensor can accurately sense the real tension of the steel belt, and therefore the measurement error is reduced, and the tension measurement precision is ensured; through the design that the control crank is matched with the threads, an operator can easily control the movement of the push plate and the clamping rod, so that the sensor is simple and convenient to operate, the complex manual operation is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator steel belt detection technology, specifically a sensor for detecting the tension of steel belts. Background Technology

[0002] In elevator wire rope tension testing, using a load cell is a common and effective method. Load cells can accurately measure the tension of the elevator steel belt or wire rope, ensuring the safety and stability of the elevator system.

[0003] Load sensors detect the force applied to them by a steel belt or wire rope and convert it into an electrical signal. Common load sensors are based on strain gauge technology. When the tension of the steel belt or wire rope is applied to the sensor, the strain gauge inside the sensor deforms, causing a change in resistance. This change is converted into an electrical signal output through a Wheatstone bridge circuit, thereby measuring the magnitude of the tension force.

[0004] Existing tension force sensors typically clamp steel strips and then test the tension. However, existing sensors may shift during clamping, potentially causing them to fail to accurately detect the true tension of the steel strip, resulting in measurement errors and affecting the accuracy of monitoring. Therefore, they do not meet the current requirements. To address this, we propose a sensor for detecting the tension force of steel strips. Utility Model Content

[0005] This invention provides a sensor for detecting the tension of a steel strip. It effectively prevents the push plate and clamping rod from shifting when clamping the steel strip, thus improving the stability of the clamping. This solves the problem mentioned in the background art that existing tension sensors typically clamp the steel strip and then test the tension. However, existing sensors may shift during clamping, which may cause the sensor to fail to accurately sense the true tension of the steel strip, resulting in measurement errors and affecting the accuracy of monitoring.

[0006] This utility model provides the following technical solution: a sensor for detecting the tension of a steel strip, comprising a sensor body and a bracket, the sensor body being disposed on the bracket, a fixing frame for fixing the steel strip being mounted on the bracket, a placement groove for placing the steel strip being provided in the fixing frame, a push plate being disposed on the fixing frame, a support rod being inserted into the push plate, a clamping rod that contacts the steel strip being sleeved on the support rod, a control groove being provided on the bracket, and a push rod for controlling the push plate being inserted into the control groove.

[0007] As an optional sensor solution for detecting the tension of steel strip according to the present invention, wherein: a sliding rod is installed at the bottom of the push plate, and a sliding groove corresponding to the sliding rod is opened in the fixing frame, and the sliding rod is slidably inserted into the sliding groove.

[0008] As an optional sensor solution for detecting the tension of steel strip according to the present invention, wherein: an auxiliary cavity is provided in the fixed frame, the auxiliary cavity is connected to the sliding groove, an auxiliary rack is provided in the auxiliary cavity, an auxiliary gear corresponding to the auxiliary rack is sleeved on the sliding rod, the auxiliary gear is rotatably inserted into the sliding rod, and the auxiliary rack meshes with the auxiliary rack.

[0009] As an optional sensor solution for detecting the tension of steel strip according to the present invention, wherein: a rotating groove corresponding to the push rod is opened in the push plate, one end of the push rod is rotatably inserted into the rotating groove, and a control handle for controlling the push rod is installed on the other end of the push rod, and the control handle is covered with an anti-slip sleeve.

[0010] As an optional sensor solution for detecting the tension of steel strip according to the present invention, wherein: an internal threaded ring is provided in the control groove, and an external threaded ring corresponding to the internal threaded ring is provided outside the push rod, and the external threaded ring is threadedly engaged with the internal threaded ring.

[0011] As an optional solution for a sensor used to detect the tension of a steel strip according to this utility model, the bracket is equipped with an installation plate for external installation, the installation plate has a threaded hole, and a threaded rod is threaded into the threaded hole.

[0012] As an alternative solution for a sensor used to detect the tension of a steel strip according to this utility model, wherein: a protective shell for protecting the sensor body is installed on the bracket, and the protective shell is located between the mounting plate and the bracket.

[0013] As an optional sensor solution for detecting the tension of steel strip according to the present invention, the push plate is configured as an L-plate, and the clamping rod is provided with a wear-resistant layer.

[0014] This utility model has the following beneficial effects:

[0015] 1. This sensor for detecting steel strip tension effectively prevents the push plate and clamping rod from shifting when clamping the steel strip through the cooperation of the sliding rod and the sliding groove, as well as the meshing of the auxiliary rack and auxiliary gear. This improves clamping stability and ensures that the sensor can accurately sense the true tension of the steel strip, thereby reducing measurement errors and guaranteeing the accuracy of tension measurement. Through the design of the control handle and threaded engagement, the operator can easily control the movement of the push plate and clamping rod, making the sensor operation simple and easy, reducing complex manual operations, and improving work efficiency.

[0016] 2. This sensor for detecting steel strip tension, by setting a mounting plate and threaded holes on the bracket, can make the sensor and other components more securely fixed, thereby improving the connection strength between the bracket and the sensor body, reducing loosening and displacement caused by vibration or other external factors, and ensuring the stability and accuracy of the sensor during use. The wear-resistant layer on the outside of the clamping rod improves its wear resistance when in contact with the steel strip, reducing wear caused by frequent clamping and releasing, and ensuring that the clamping rod maintains good performance during long-term use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the main planar structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the main cross-sectional structure of this utility model.

[0020] Figure 4 This is a side view of the main body structure of this utility model.

[0021] In the diagram: 110, sensor body; 111, bracket; 112, fixing frame; 113, placement slot; 114, push plate; 115, support rod; 116, clamping rod; 117, control slot; 118, push rod; 120, sliding rod; 121, sliding groove; 123, auxiliary cavity; 124, auxiliary rack; 125, auxiliary gear; 130, rotating groove; 131, control crank; 132, anti-slip sleeve; 133, internal threaded ring; 134, external threaded ring; 140, mounting plate; 141, threaded hole; 142, threaded rod; 143, protective shell; 144, wear-resistant layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: This example aims to address the problem that existing tension force sensors typically clamp the steel strip and then test the tension. However, existing sensors may shift during clamping, potentially causing them to fail to accurately detect the true tension of the steel strip, resulting in measurement errors and affecting the accuracy of monitoring. Please refer to [link to relevant documentation]. Figures 1-4 A sensor for detecting the tension of a steel strip includes a sensor body 110 and a bracket 111. The sensor body 110 is mounted on the bracket 111. A fixing frame 112 for fixing the steel strip is installed on the bracket 111. A placement groove 113 for placing the steel strip is opened in the fixing frame 112. A push plate 114 is provided on the fixing frame 112. A support rod 115 is inserted into the push plate 114. A clamping rod 116 that contacts the steel strip is sleeved on the support rod 115. A control groove 117 is opened on the bracket 111. A push rod 118 for controlling the push plate 114 is inserted into the control groove 117.

[0024] A sliding rod 120 is installed at the bottom of the push plate 114. A sliding groove 121 corresponding to the sliding rod 120 is opened in the fixing frame 112, and the sliding rod 120 is slidably inserted into the sliding groove 121. An auxiliary cavity 123 is opened in the fixing frame 112, which communicates with the sliding groove 121. An auxiliary rack 124 is provided in the auxiliary cavity 123. An auxiliary gear 125 corresponding to the auxiliary rack 124 is sleeved on the sliding rod 120. The auxiliary gear 125 is rotatably inserted into the sliding rod 120, and the auxiliary rack 124 meshes with the auxiliary rack 124.

[0025] The push plate 114 has a groove 130 corresponding to the push rod 118. One end of the push rod 118 is rotatably inserted into the groove 130, and the other end of the push rod 118 is equipped with a control handle 131 for controlling it. The control handle 131 is covered with an anti-slip sleeve 132. An internal threaded ring 133 is provided in the control groove 117, and an external threaded ring 134 corresponding to the internal threaded ring 133 is provided on the outside of the push rod 118. The external threaded ring 134 and the internal threaded ring 133 are threadedly engaged.

[0026] The sensor body 110 is fixed to the bracket 111 to ensure stable sensor positioning and prevent displacement. The sensor is then secured around the steel strip using the mounting bracket 112, ensuring accurate contact with the strip for tension testing. The steel strip to be tested is placed in the placement slot 113 within the mounting bracket 112, ensuring it is fully inserted for accurate measurement. The placed steel strip is aligned with the clamping components of the sensor body 110 for accurate clamping. The control handle 131 is operated, and the push rod 118 moves along the control slot 117 via the engagement of the push rod 118 and the internal and external threaded rings 134.

[0027] The movement of push rod 118 moves push plate 114 toward the steel strip, pushing support rod 115 to gradually press it against the steel strip. The bottom sliding rod 120 of push plate 114 moves smoothly within sliding groove 121. Simultaneously, push rod 118 pushes push plate 114, causing auxiliary gear 125 to rotate. As auxiliary gear 125 rotates, it meshes with auxiliary rack 124, making push plate 114 more stable during movement and reducing measurement errors caused by the offset of clamping rod 116. With the push plate 114 being pushed, clamping rod 116 clamps the steel strip, ensuring precise transmission of tension to sensor body 110.

[0028] The clamping rod 116 performs tensile testing through contact with the steel strip. Due to the coordination of clamping and control of the support rod 115, good contact between the clamping rod 116 and the steel strip is maintained, ensuring that no deviation occurs during tension measurement. During clamping, if the auxiliary rack 124 is designed to mesh with the auxiliary gear 125, the clamping state can be further stabilized and the tension measurement can be made more reliable.

[0029] Once clamped, the sensor body 110 begins detecting the tension on the steel strip, converting the tension value into a corresponding electrical signal via the embedded measurement module. The measurement results are transmitted to the monitoring system in real time for operator confirmation and analysis. The operating system or display terminal displays the data to the operator, facilitating real-time monitoring and assessment of the steel strip's operating status. If the measured value exceeds the safe range, the system can issue an alarm and recommend appropriate maintenance.

[0030] After the measurement is completed, the operator can operate the control crank 131 again to return the push rod 118 to its original position, causing the push plate 114 and clamping rod 116 to release the steel strip. The steel strip is then removed from the placement slot 113, ending the measurement.

[0031] In this embodiment: the cooperation between the sliding rod 120 and the sliding groove 121, and the meshing between the auxiliary rack 124 and the auxiliary gear 125, effectively prevent the push plate 114 and the clamping rod 116 from shifting when clamping the steel strip, improving the stability of clamping, ensuring that the sensor can accurately sense the true tension of the steel strip, thereby reducing measurement errors and ensuring the accuracy of tension force measurement. Through the design of the control handle 131 and the threaded engagement, the operator can easily control the movement of the push plate 114 and the clamping rod 116, making the sensor operation simple and easy, reducing complex manual operations, and improving work efficiency.

[0032] Example 2 aims to address the issues of sensor loosening and misalignment caused by vibration or other external factors during use. This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1-4 The bracket 111 is equipped with a mounting plate 140 for external installation. The mounting plate 140 has a threaded hole 141, and a threaded rod 142 is inserted into the threaded hole 141.

[0033] A protective shell 143 for protecting the sensor body 110 is mounted on the bracket 111, and the protective shell 143 is located between the mounting plate 140 and the bracket 111. The protective shell 143 effectively protects the sensor body 110, preventing damage to the sensor from external impacts, dust, moisture, etc. during operation. The push plate 114 is designed as an L-plate, and a wear-resistant layer 144 is provided on the outside of the clamping rod 116. Designing the push plate 114 as an L-plate provides a larger force-bearing area, thereby allowing the push plate 114 to distribute pressure more evenly when clamping the steel strip.

[0034] In this embodiment: by providing a mounting plate 140 and threaded holes 141 on the bracket 111, the sensor and other components can be more securely fixed, which improves the connection strength between the bracket 111 and the sensor body 110, reduces loosening and displacement caused by vibration or other external factors, and ensures the stability and accuracy of the sensor during use. The wear-resistant layer 144 provided on the outside of the clamping rod 116 improves its wear resistance when in contact with the steel strip, reduces wear caused by frequent clamping and releasing, and ensures that the clamping rod 116 maintains good performance during long-term use.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sensor for detecting the tension of a steel strip, comprising a sensor body (110) and a bracket (111), characterized in that: The sensor body (110) is arranged on the support (111), a fixing frame (112) for fixing the steel belt is arranged on the support (111), a placing groove (113) for placing the steel belt is arranged in the fixing frame (112), a push plate (114) is arranged on the fixing frame (112), a supporting rod (115) is inserted into the push plate (114), a clamping rod (116) in contact with the steel belt is arranged on the supporting rod (115), and a control groove (117) is arranged on the support (111).

2. A sensor for detecting the tension of a steel strip according to claim 1, characterized in that: The bottom of the push plate (114) is provided with a sliding rod (120), and the fixing frame (112) is provided with a sliding groove (121) corresponding to the sliding rod (120).

3. A sensor for detecting the tension of a steel strip according to claim 2, characterized in that: An auxiliary cavity (123) is arranged in the fixing frame (112), the auxiliary cavity (123) is communicated with the sliding groove (121), an auxiliary rack (124) is arranged in the auxiliary cavity (123), and an auxiliary gear (125) corresponding to the auxiliary rack (124) is arranged on the sliding rod (120).

4. The sensor for detecting the tension of a steel strip according to claim 1, characterized in that: The push plate (114) is provided with a rotating groove (130) corresponding to the push rod (118), one end of the push rod (118) is rotatably inserted into the rotating groove (130), and the other end of the push rod (118) is provided with a control crank (131) for controlling the push rod (118).

5. The sensor for detecting the tension of a steel strip according to claim 1, characterized in that: The control groove (117) is provided with an internal thread ring (133), and the push rod (118) is provided with an external thread ring (134) corresponding to the internal thread ring (133).

6. The sensor for detecting the tension of a steel strip according to claim 1, characterized in that: The support (111) is provided with a mounting plate (140) for external mounting, and the mounting plate (140) is provided with a threaded hole (141).

7. A sensor for detecting the tension of a steel strip according to claim 6, characterized in that: The support (111) is provided with a protective shell (143) for protecting the sensor body (110), and the protective shell (143) is located between the mounting plate (140) and the support (111).

8. The sensor for detecting the tension of a steel strip according to claim 1, characterized in that: The push plate (114) is arranged as an L plate, and the clamping rod (116) is provided with a wear-resistant layer (144).

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