CN216349338U

CN216349338U - Tension calibration device

Info

Publication number: CN216349338U
Application number: CN202122538609.2U
Authority: CN
Inventors: 徐鼎皓
Original assignee: Chongqing Zhixincheng Measurement And Testing Technology Co ltd
Current assignee: Chongqing Zhixincheng Measurement And Testing Technology Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-04-19
Anticipated expiration: 2031-10-21

Abstract

The utility model provides a tension force calibration device which comprises force value weights, wherein a pull rope is wound on a fixed pulley, the pull rope is divided into a horizontal section and a vertical section by means of the fixed pulley, the force value weights are hung at the lower end of the vertical section of the pull rope, and the head end of the horizontal section of the pull rope is used for being connected with a horizontally arranged dynamometer. Adopt such scheme, change horizontal pulling force into vertical pulling force ingeniously to can be very convenient detect vertical pulling force.

Description

Tension calibration device

Technical Field

The utility model relates to a mechanical detection facility/equipment, in particular to a tension calibration device.

Background

The existing dynamometers mainly comprise a vertically arranged dynamometer and a horizontally arranged dynamometer, such as: the dynamometer calibration device disclosed in document CN208187627U includes a frame, a standard force sensor, an adjusting component and a force transmission component, wherein the standard force sensor is installed on the frame, the adjusting component is used for fixing the dynamometer and can adjust the relative position between the dynamometer and the standard force sensor, the force transmission component can simultaneously abut against the sensing ends of the standard force sensor and the dynamometer, and the standard force sensor is used as a standard to check the indication value of the dynamometer; document CN210625935U discloses a dynamometer calibration device, which includes a working plate and a fixed rod, wherein the upper surface of the working plate is rotatably provided with a vertical rotating column, the top of the rotating column is coaxially fixed with a hexagonal prism, the side wall of the rotating column is fixed with a horizontally rigid rotating rod, the rotating rod is slidably sleeved with a sliding block, and the sliding block is provided with a fastener.

However, the existing horizontally arranged force measuring instrument can only detect the transverse tension, if the existing horizontally arranged force measuring instrument needs to be used for detecting the vertical tension which is not more than 500N, the sensor of the force measuring instrument needs to be dismounted and then remounted, and even the force measuring instrument needs to be remounted, so that the detection of the vertical tension is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tension calibration device convenient for detecting vertical tension.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The utility model provides a pulling force calibration device, includes power value weight, its characterized in that: the pull rope is wound on the fixed pulley and is divided into a horizontal section and a vertical section by means of the fixed pulley, the force value weight is hung at the lower end of the vertical section of the pull rope, and the head end of the horizontal section of the pull rope is used for being connected with a horizontally arranged dynamometer. Adopt such scheme, change horizontal pulling force into vertical pulling force ingeniously to can be very convenient detect vertical pulling force.

For conveniently adjusting the height of the tension checking and correcting device, the fixed pulley is connected to the support which comprises a vertical frame, the side wall of the vertical frame is provided with a vertically-arranged chute, the adjusting plate is fixedly connected with the vertical frame through a fastener matched with the chute, and when the fastener is loosened, the adjusting plate) can slide along the chute.

For easy to assemble and use, the adjusting plate is composed of a first plate body and a second plate body which are perpendicular to each other, the first plate body is connected with the vertical frame, the second plate body is suspended, the fixed pulley is arranged on the second plate body, and the pulley groove of the fixed pulley is positioned on the outer side of the second plate body.

In order to improve the stability of the tension calibration device, the two side walls in the width direction of the vertical frame are provided with sliding grooves, the sliding grooves are two sliding grooves which are arranged in parallel, and the two side walls in the thickness direction of the vertical frame are provided with single sliding grooves.

Preferably, the cross section of the chute is composed of a rectangular part and a notch, and the caliber of the notch is smaller than the length of the long side of the rectangular part.

For further improving the stability of pulling force calibration device, the border is connected with the bracing under the second plate body, and the bracing lower extreme passes through the connecting plate and the fastener is connected on the lateral wall of grudging post thickness direction.

For convenient installation, the side wall of the bottom of the vertical frame is provided with a connecting seat.

In order to facilitate the installation, a connecting piece is arranged at the head end of the horizontal section of the pull rope; preferably, the connecting piece is provided with a screw hole for matching a bolt of a connecting block on the force measuring instrument.

Has the advantages that: the tension calibration device provided by the utility model can be used for detecting transverse tension and conveniently detecting vertical tension without disassembling a sensor of the dynamometer, when the vertical tension needs to be detected, the head end of the pull rope is firstly connected to the dynamometer, then the pull rope is wound around the fixed pulley, the height of the adjusting plate is adjusted until the front half section of the pull rope is in a horizontal state and the rear half section of the pull rope is in a vertical state, and then a proper force value weight is hung at the lower end of the vertical section of the pull rope; due to the adoption of the adjusting plate with adjustable height and the fixed pulley, the tension calibration device can be suitable for detection platforms with various specifications, and has good universality; in addition, the tension calibration device also has the advantages of good stability, and convenience in installation and use.

Drawings

FIG. 1 is a schematic perspective view of a tension calibration device in example 1;

FIG. 2 is a schematic side view of the tension calibration device in example 1;

fig. 3 is a schematic side view of the tension calibration device in example 2.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1: the utility model provides a pulling force calibration device, as shown in fig. 1 and 2, includes power value weight 1, and power value weight 1 disposes a plurality ofly of different models, and the stay cord is around on fixed pulley 6 to divide into horizontal segment 9 and vertical section 4 with the stay cord with the help of fixed pulley 6, power value weight 1 hangs and establishes the lower extreme at the vertical section 4 of stay cord, and the head end of the horizontal segment 9 of stay cord is used for connecting the dynamometer of horizontal arrangement. The fixed pulley 6 is connected to a support, the support comprises a vertical frame 3, a sliding groove 8 which is vertically arranged is formed in the side wall of the vertical frame 3, an adjusting plate 5 is fixedly connected with the vertical frame 3 through a fastener 7 which is matched in the sliding groove 8, and the adjusting plate 5 can slide along the sliding groove 8 after the fastener 7 is loosened, specifically, the sliding groove 8 is formed in each of two side walls in the width direction of the vertical frame 3, the sliding grooves 8 are two double sliding grooves which are arranged in parallel, each of two side walls in the thickness direction of the vertical frame 3 is provided with a single sliding groove 11, the cross section of each sliding groove 8 is composed of a rectangular part and a notch, and the caliber of the notch is smaller than the length of a long side 13 of the rectangular part; the adjusting plate 5 is composed of a first plate body and a second plate body which are vertical to each other, the first plate body is connected with the vertical frame 3, the second plate body is suspended in the air, the fixed pulley 6 is arranged on the second plate body, and a pulley groove of the fixed pulley 6 is positioned on the outer side of the second plate body; a connecting seat 12 is arranged on the side wall of the bottom of the vertical frame 3; the head end of the horizontal section 9 of the pull rope is provided with a connecting piece 10, and the connecting piece 10 is provided with a screw hole for matching with a bolt of a connecting block on the dynamometer.

Example 2: a tension calibration device is disclosed by referring to embodiment 1 and combining with figure 3, and the main difference from embodiment 1 is that: the lower edge of the second plate body is connected with an inclined strut 14, and the lower end of the inclined strut 14 is connected to the side wall of the vertical frame 3 in the thickness direction through a connecting plate 15 and a fastener.

The tension calibration device can be used for detecting the transverse tension and the vertical tension very conveniently under the condition of not disassembling a dynamometer sensor. When the vertical tension needs to be detected, the head end of the pull rope is connected to the dynamometer (a screw hole on the connecting piece 10 is matched with a bolt of a connecting block on the dynamometer), then the pull rope is wound around the fixed pulley 6, the height of the adjusting plate 5 is adjusted until the front half section of the pull rope is in a horizontal state and the rear half section of the pull rope is in a vertical state, then the adjusting plate 5 is locked by a fastener 7, and then a proper force value weight 1 is hung at the lower end of the vertical section of the pull rope; in the detection process, the gravity of the force value weight 1 is transmitted to the connecting piece 10 and the connecting block on the force measuring instrument through the pull rope, and then acts on the detected workpiece (the specific connection relation between the connecting block and the detected workpiece is a conventional structure on the force measuring instrument, and is not described herein again); due to the adoption of the adjusting plate 5 with adjustable height and the fixed pulley 6, the tension calibration device can be suitable for detection platforms with various specifications, and has good universality; in addition, the tension calibration device also has the advantages of good stability, and convenience in installation and use.

Claims

1. The utility model provides a pulling force calibration device, includes power value weight (1), its characterized in that: the pull rope is wound on the fixed pulley (6), the pull rope is divided into a horizontal section (9) and a vertical section (4) by means of the fixed pulley (6), force value weights (1) are hung at the lower end of the vertical section (4) of the pull rope, and the head end of the horizontal section (9) of the pull rope is used for being connected with a horizontally-arranged dynamometer.

2. The tension calibration device according to claim 1, wherein: fixed pulley (6) are connected on the support, and the support includes grudging post (3), and the lateral wall of grudging post (3) is provided with vertical arrangement's spout (8), and regulating plate (5) are through fastener (7) and grudging post (3) fixed connection of cooperation in spout (8), and when fastener (7) not hard up back, regulating plate (5) can slide along spout (8).

3. The tension calibration device according to claim 2, wherein: the adjusting plate (5) is composed of a first plate body and a second plate body which are perpendicular to each other, the first plate body is connected with the vertical frame (3), the second plate body is suspended, the fixed pulley (6) is arranged on the second plate body, and the wheel groove of the fixed pulley (6) is located on the outer side of the second plate body.

4. The tension calibration device according to claim 3, wherein: the two side walls in the width direction of the vertical frame (3) are both provided with a sliding chute (8), the sliding chutes (8) are two double sliding chutes which are arranged in parallel, and the two side walls in the thickness direction of the vertical frame (3) are both provided with a single sliding chute (11).

5. The tension calibration device according to claim 4, wherein: the cross section of the sliding chute (8) consists of a rectangular part and a notch, and the caliber of the notch is smaller than the length of the long side (13) of the rectangular part.

6. The tension calibration device according to claim 5, wherein: the lower edge of the second plate body is connected with an inclined strut (14), and the lower end of the inclined strut (14) is connected to the side wall of the vertical frame (3) in the thickness direction through a connecting plate (15) and a fastener.

7. The tension calibration device according to any one of claims 1 to 6, wherein: the side wall of the bottom of the vertical frame (3) is provided with a connecting seat (12).

8. The tension calibration device according to claim 7, wherein: the head end of the horizontal section (9) of the pull rope is provided with a connecting piece (10).

9. The tension calibration device according to claim 8, wherein: the connecting piece (10) is provided with a screw hole for matching a bolt of a connecting block on the dynamometer.