阅读说明：本技术 一种扭矩法兰标定装置 (Torque flange calibration device ) 是由 张孟锋 许明中 郭明 程龙 于 2020-06-11 设计创作，主要内容包括：本发明涉及一种扭矩法兰标定装置,解决扭矩法兰标定方式存在的精度低、现场操作实用性差的问题,包括调节砝码、上臂杆支架、上臂杆、下臂杆、臂杆调节组件、上臂杆砝码支杆及下臂杆砝码支杆；上臂杆与上臂杆支架铰接；上臂杆的两端分别与上臂杆砝码支杆及臂杆调节组件的一端固连；下臂杆轴向中心设有扭矩法兰适配器,下臂杆的两端分别与下臂杆砝码支杆及臂杆调节组件的另一端固连；臂杆调节组件调节上臂杆及下臂杆相互平行；上臂杆砝码支杆及下臂杆砝码支杆的端部均用于放置标定砝码；对上臂杆及下臂杆施加垂直向下的力；臂杆调节组件的重量等于上臂杆砝码支杆与下臂杆砝码支杆的重量之和。本发明对标定空间要求低,减少砝码提升装置,成本低。(The invention relates to a torque flange calibration device, which solves the problems of low precision and poor field operation practicability in a torque flange calibration mode and comprises an adjusting weight, an upper arm rod support, an upper arm rod, a lower arm rod, an arm rod adjusting assembly, an upper arm rod weight support rod and a lower arm rod weight support rod; the upper arm rod is hinged with the upper arm rod bracket; two ends of the upper arm rod are fixedly connected with the upper arm rod weight support rod and one end of the arm rod adjusting assembly respectively; a torque flange adapter is arranged at the axial center of the lower arm rod, and two ends of the lower arm rod are fixedly connected with the lower arm rod weight support rod and the other end of the arm rod adjusting assembly respectively; the arm rod adjusting assembly adjusts the upper arm rod and the lower arm rod to be parallel to each other; the end parts of the upper arm rod weight support rod and the lower arm rod weight support rod are used for placing calibration weights; applying a vertically downward force to the upper arm bar and the lower arm bar; the weight of the arm lever adjusting component is equal to the sum of the weights of the upper arm lever weight support rod and the lower arm lever weight support rod. The invention has low requirement on calibration space, reduces weight lifting devices and has low cost.)

1. The utility model provides a moment of torsion flange calibration device which characterized in that: comprises an adjusting weight (1), an upper arm rod bracket (2), an upper arm rod (3), a lower arm rod (10), an arm rod adjusting component, an upper arm rod weight support rod (5) and a lower arm rod weight support rod (8);

the adjusting weight (1) is arranged on the upper arm rod (3) and can move along the length direction of the upper arm rod (3); the upper arm rod support (2) is used for being fixed with an external supporting device; the upper arm rod (3) is hinged with the upper arm rod support (2) and can freely rotate on the upper arm rod support (2); two ends of the upper arm rod (3) are fixedly connected with the upper arm rod weight support rod (5) and one end of the arm rod adjusting assembly respectively; the upper arm rod (3) is vertical to the upper arm rod weight support rod (5) and the arm rod adjusting component;

a torque flange adapter (11) is arranged at the axial center of the lower arm rod (10), and the torque flange adapter (11) is used for fixing a torque flange to be calibrated; two ends of the lower arm rod (10) are fixedly connected with the lower arm rod weight support rod (8) and the other end of the arm rod adjusting assembly respectively; the lower arm rod (10) is vertical to the lower arm rod weight support rod (8) and the arm rod adjusting component;

the arm rod adjusting assembly is used for adjusting the upper arm rod (3) and the lower arm rod (10) to be parallel to each other; the ends of the upper arm rod weight support rod (5) and the lower arm rod weight support rod (8) are used for placing calibration weights and applying vertical downward force to the upper arm rod (3) and the lower arm rod (10);

the weight of the arm lever adjusting component is equal to the sum of the weight of the upper arm lever weight support rod (5) and the weight of the lower arm lever weight support rod (8).

2. The torque flange calibration device according to claim 1, wherein: the arm rod adjusting assembly comprises an adjusting block (15), an upper arm rod adjusting block supporting rod (16) and a lower arm rod adjusting block supporting rod (14); the adjusting block (15) is provided with a threaded hole, and the upper arm lever adjusting block supporting rod (16) and the lower arm lever adjusting block supporting rod (14) are threaded rods; one end of the upper arm rod adjusting block supporting rod (16) is connected with the upper arm rod (3), and the other end of the upper arm rod adjusting block supporting rod is in threaded connection with the adjusting block (15) through a threaded hole of the adjusting block (15); one end of the lower arm rod adjusting block supporting rod (14) is connected with the lower arm rod (10), and the other end of the lower arm rod adjusting block supporting rod is in threaded connection with the adjusting block (15) through a threaded hole of the adjusting block (15);

the upper arm rod (3) and the lower arm rod (10) are adjusted to be parallel to each other by adjusting the length of the upper arm rod adjusting block supporting rod (16) and the lower arm rod adjusting block supporting rod (14) which are screwed into the threaded holes.

3. The torque flange calibration device according to claim 2, wherein: the arm lever weight tray comprises an upper arm lever weight tray (6) and a lower arm lever weight tray (9); the upper arm lever weight tray (6) is fixed at the end part of the upper arm lever weight support rod (5), and the lower arm lever weight tray (9) is fixed at the end part of the lower arm lever weight support rod (8); the calibration weights are placed on the upper arm rod weight tray (6) and the lower arm rod weight tray (9);

a gap is arranged between the upper arm rod weight tray (6) and the lower arm rod (10);

the sum of the weights of the adjusting block (15), the upper arm rod adjusting block supporting rod (16) and the lower arm rod adjusting block supporting rod (14) is equal to the sum of the weights of the upper arm rod weight supporting rod (5), the upper arm rod weight tray (6), the lower arm rod weight supporting rod (8) and the lower arm rod weight tray (9).

4. The torque flange calibration device according to claim 3, wherein: the device also comprises an upper arm rod weight tray adapter (4), a lower arm rod weight tray adapter (7), an upper arm rod adjusting block adapter (17) and a lower arm rod adjusting block adapter (13);

the upper arm rod weight tray adapter (4) and the lower arm rod weight tray adapter (7) are identical in structure and respectively comprise a U-shaped buckle, a pin and a screw rod; the U-shaped buckle is buckled at one end of the upper arm rod (3) and one end of the lower arm rod (10) respectively and is fixed through a pin; the non-opening end of the U-shaped buckle is defined as the bottom of the U-shaped buckle, and the screw is fixed at the bottom of the U-shaped buckle and is in threaded connection with an upper arm rod weight support rod (5) and a lower arm rod weight support rod (8);

the upper arm lever adjusting block adapter (17) and the lower arm lever adjusting block adapter (13) have the same structure and respectively comprise a U-shaped buckle, a pin, a nut and a limiting block; the U-shaped buckle is buckled at the other ends of the upper arm rod (3) and the lower arm rod (10) respectively and is fixed through a pin; one end of the upper arm lever adjusting block supporting rod (16) and one end of the lower arm lever adjusting block supporting rod (14) respectively penetrate through the bottom of the nut and the bottom of the U-shaped buckle in sequence to be fixedly connected with the limiting block, and the axial displacement of the upper arm lever adjusting block supporting rod and the limiting block is limited by the nut.

5. The torque flange calibration device according to claim 4, wherein: the arm support is characterized by further comprising an upper arm rod support adapter (12), and the upper arm rod support (2) is fixed with an external supporting device through the upper arm rod support adapter (12).

6. The torque flange calibration device according to claim 5, wherein: the upper arm rod support adapter (12) is fixed with an external support device through a bolt.

7. The torque flange calibration device according to claim 6, wherein: the torque flange adapter (11) is fixed on a torque flange to be calibrated through bolts.

8. The torque flange calibration device according to any one of claims 1 to 7, wherein: the upper arm rod (3) and the lower arm rod (10) are equal in length, and the upper arm rod weight support rod (5) and the lower arm rod weight support rod (8) are located on the same straight line.

9. The torque flange calibration device according to claim 8, wherein: the upper arm rod (3) and the lower arm rod (10) are telescopic arms.

Technical Field

The invention relates to a torque calibration device, in particular to a torque flange calibration device.

Background

The application scenes of the torque flange (namely the torque sensor) are very wide, and the measurement precision of the torque flange directly influences the test result and the objective evaluation on the product performance, so that the measurement precision of the torque flange needs to be calibrated to meet the product test requirement.

At present, the torque flange is generally applied in two calibration modes: one is a calibration mode adopting cylinder loading, and the calibration mode needs to calibrate a cylinder force sensor, so that system errors exist and are difficult to eliminate, and the calibration precision of a torque flange is influenced; the other method is to adopt a long arm rod for calibration, when the torque flange with a large calibration stroke is calibrated, the length of the arm rod reaches 6m to 10m, so that the rigidity of the long arm rod cannot be guaranteed, the length of the arm rod is deformed, the calibration precision is influenced, an external device for providing reverse thrust is required, and in addition, the mass of a calibration weight is large, so that the field operation is not facilitated.

Disclosure of Invention

In order to solve the problems of low precision and poor field operation practicability of the existing torque flange calibration mode, the invention provides a novel torque flange calibration device, two parallel calibration arm rods are adopted, external devices for providing reverse thrust are reduced, weights are loaded on two different calibration arm rods, the length of each calibration arm is reduced by 50% compared with that of a common calibration arm rod in the same range, the requirement on calibration space is low, and meanwhile, the weights are used for loading, so that system errors are eliminated, and the calibration precision of a torque flange is improved.

The technical scheme of the invention is to provide a torque flange calibration device, which is characterized in that: the device comprises an adjusting weight, an upper arm rod support, an upper arm rod, a lower arm rod, an arm rod adjusting assembly, an upper arm rod weight support rod and a lower arm rod weight support rod;

the adjusting weight is arranged on the upper arm rod and can move along the length direction of the upper arm rod; the upper arm rod bracket is used for being fixed with an external supporting device; the upper arm rod is hinged with the upper arm rod support and can freely rotate on the upper arm rod support; two ends of the upper arm rod are fixedly connected with the upper arm rod weight support rod and one end of the arm rod adjusting assembly respectively; the upper arm rod is vertical to the upper arm rod weight support rod and the arm rod adjusting assembly;

a torque flange adapter is arranged at the axial center of the lower arm rod and used for fixing a torque flange to be calibrated, and two ends of the lower arm rod are fixedly connected with a weight support rod of the lower arm rod and the other end of the arm rod adjusting assembly respectively; the lower arm rod is vertical to the weight support rod of the lower arm rod and the arm rod adjusting component;

the arm rod adjusting assembly is used for adjusting the upper arm rod and the lower arm rod to be parallel to each other; the end parts of the upper arm rod weight support rod and the lower arm rod weight support rod are used for placing calibration weights; applying a vertically downward force to the upper arm bar and the lower arm bar;

the weight of the arm lever adjusting assembly is equal to the sum of the weight of the upper arm lever weight supporting rod and the weight of the lower arm lever weight supporting rod.

Furthermore, in order to quickly adjust the upper arm rod and the lower arm rod to be parallel to each other, the arm rod adjusting assembly comprises an adjusting block, an upper arm rod adjusting block supporting rod and a lower arm rod adjusting block supporting rod; the adjusting block is provided with a threaded hole, and the upper arm lever adjusting block supporting rod and the lower arm lever adjusting block supporting rod are threaded rods; one end of the upper arm rod adjusting block supporting rod is in threaded connection with the upper arm rod, and the other end of the upper arm rod adjusting block supporting rod is in threaded connection with the adjusting block through a threaded hole of the adjusting block; one end of the lower arm rod adjusting block supporting rod is in threaded connection with the lower arm rod, and the other end of the lower arm rod adjusting block supporting rod is in threaded connection with the adjusting block through a threaded hole of the adjusting block;

the upper arm rod and the lower arm rod are parallel to each other through adjusting the length of the upper arm rod adjusting block supporting rod and the length of the lower arm rod adjusting block supporting rod screwed into the threaded hole.

Furthermore, in order to place a plurality of calibration weights, the calibration device also comprises an upper arm rod weight tray and a lower arm rod weight tray; the upper arm lever weight tray is fixed at the end part of the upper arm lever weight support rod, and the lower arm lever weight tray is fixed at the end part of the lower arm lever weight support rod; the calibration weights are placed on the upper arm rod weight tray and the lower arm rod weight tray; a gap is formed between the upper arm rod weight tray and the lower arm rod;

the sum of the weights of the adjusting block, the upper arm rod adjusting block supporting rod and the lower arm rod adjusting block supporting rod is equal to the sum of the weights of the upper arm rod weight supporting rod, the upper arm rod weight tray, the lower arm rod weight supporting rod and the lower arm rod weight tray.

Furthermore, the calibration device also comprises an upper arm rod weight tray adapter, a lower arm rod weight tray adapter, an upper arm rod adjusting block adapter and a lower arm rod adjusting block adapter;

the upper arm rod weight tray adapter and the lower arm rod weight tray adapter have the same structure and respectively comprise a U-shaped buckle, a pin and a screw rod; the U-shaped buckle is buckled at one end of the upper arm rod and one end of the lower arm rod respectively and is fixed through a pin; the non-opening end of the U-shaped buckle is defined as the bottom of the U-shaped buckle, and the screw is fixed at the bottom of the U-shaped buckle and is in threaded connection with the upper arm rod weight support rod and the lower arm rod weight support rod;

the upper arm lever adjusting block adapter and the lower arm lever adjusting block adapter have the same structure and respectively comprise a U-shaped buckle, a pin, a nut and a limiting block; the U-shaped buckle is buckled at the other ends of the upper arm rod and the lower arm rod respectively and is fixed through a pin; one end of the upper arm lever adjusting block supporting rod and one end of the lower arm lever adjusting block supporting rod respectively penetrate through the bottom of the nut and the bottom of the U-shaped buckle in sequence to be fixedly connected with the limiting block, and the axial displacement of the upper arm lever adjusting block supporting rod and the limiting block is limited by the limiting block and the nut.

Furthermore, the calibration device further comprises an upper arm rod support adapter, and the upper arm rod support is fixed with an external support device through the upper arm rod support adapter.

Further, the upper arm lever bracket adapter is fixed with an external support device through a bolt.

Further, the torque flange adapter is fixed on a torque flange to be calibrated through bolts.

Furthermore, the upper arm rod and the lower arm rod are equal in length, and the upper arm rod weight support rod and the lower arm rod weight support rod are located on the same straight line.

Furthermore, the upper arm rod and the lower arm rod are telescopic arms, and the arm length is adjusted according to the distance torque flanges with different quantities.

The invention has the beneficial effects that:

1. compared with a cylinder loading calibration mode, the invention reduces two calibration cylinders and two force sensors, saves cost, has no system error of a secondary instrument, and improves the calibration precision of the torque flange; compare in the demarcation mode of long armed lever, reduced the external device that provides reverse thrust, and reduce 50% armed lever length, require lowly to demarcating the space, adopt the weight to carry out the loading simultaneously, reduce at least 50% weight than the long armed lever demarcation weight, reduce weight hoisting device, reduce cost.

2. The invention can adjust the length of the parallel arm according to the measuring range of the object to be calibrated so as to be suitable for calibrating various objects with different measuring ranges.

Drawings

FIG. 1 is a schematic structural diagram of a torque flange calibration device in an embodiment;

the reference numbers in the figures are: 1-adjusting weights, 2-upper arm bar support, 3-upper arm bar, 4-upper arm bar weight tray adapter, 5-upper arm bar weight support bar, 6-upper arm bar weight tray, 7-lower arm bar weight tray adapter, 8-lower arm bar weight support bar, 9-lower arm bar weight tray, 10-lower arm bar, 11-torque flange adapter, 12-upper arm bar support adapter, 13-lower arm bar adjusting block adapter, 14-lower arm bar adjusting block support bar, 15-adjusting block, 16-upper arm bar adjusting block support bar, 17-upper arm bar adjusting block adapter.

Detailed Description

The invention is further described below in conjunction with specific embodiments.

As can be seen from fig. 1, the torque flange calibration device of the present embodiment mainly includes an adjusting weight 1, an upper arm lever support 2, an upper arm lever 3, an upper arm lever weight support rod 5, an upper arm lever weight tray 6, a lower arm lever weight support rod 8, a lower arm lever weight tray 9, a lower arm lever 10, a lower arm lever adjusting block support rod 14, an adjusting block 15, and an upper arm lever adjusting block support rod 16. The upper arm rod 3 and the lower arm rod 10 can be telescopic arms, and the arm length can be adjusted according to the distance torque flanges with different quantities. The lower arm 10 is provided with a torque flange adapter 11 at the axial center, and it can also be understood that the lower arm 10 is two equal-length arms welded to two opposite sides of the torque flange adapter 11. The structure of the torque flange adapter 11 is matched with the torque flange to be calibrated, and the torque flange is fixed on the torque flange to be calibrated through bolts, so that the connection between the torque flange and the calibration device is realized. In order to connect the device with an external supporting device, an upper arm rod support adapter 12 can be further included, the upper arm rod support adapter 12 is fixed on the external supporting device through the upper arm rod support adapter 12, and the upper arm rod support adapter 12 and the external supporting device can be fixed through bolts or other common structures.

The upper arm rod 3 is hinged on the upper arm rod support 2 and is connected with the upper arm rod support adapter 12 through the upper arm rod support 2, and the upper arm rod 3 can freely rotate on the upper arm rod support 2; one end of the upper arm rod weight support rod 5 is connected with one end of the upper arm rod 3 through the upper arm rod weight tray adapter 4, the other end of the upper arm rod weight support rod 5 is connected with the upper arm rod weight tray 6, and the upper arm rod weight tray 6 is used for placing calibration weights. The one end of lower arm pole weight branch 8 is connected with the one end of lower arm pole 10 through lower arm pole weight tray adapter 7, and the other end of lower arm pole weight branch 8 is connected with lower arm pole weight tray 9, and lower arm pole weight tray 9 is used for placing the demarcation weight.

The upper arm rod weight tray adapter 4 and the lower arm rod weight tray adapter 7 both comprise U-shaped buckles, pins and screws; the U-shaped buckle is buckled at one end of the upper arm rod and one end of the lower arm rod respectively and is fixed through a pin; the non-opening end of the U-shaped buckle is defined as the bottom of the U-shaped buckle, and the screw is fixed at the bottom of the U-shaped buckle and is in threaded connection with the upper arm rod weight support rod 5 and the lower arm rod weight support rod 8; as can be seen from the figure, the end surface of the upper arm lever 3 connected to one end of the upper arm lever weight tray adapter 4 is an inclined surface.

The adjusting block 15 is connected to the other end of the lower arm lever 10 via a lower arm lever adjusting block support rod 14 and a lower arm lever adjusting block adapter 13 in sequence, and is connected to the other end of the upper arm lever 3 via an upper arm lever adjusting block support rod 16 and an upper arm lever adjusting block adapter 17 in sequence. The lower arm rod adjusting block supporting rod 14 and the upper arm rod adjusting block supporting rod 16 are threaded rods, and threaded holes are formed in the adjusting blocks 15.

Wherein the lower arm lever adjusting block adapter 13 and the upper arm lever adjusting block adapter 17 both comprise U-shaped buckles, pins, nuts and limiting blocks; the U-shaped buckles are respectively buckled at the other ends of the upper arm rod 3 and the lower arm rod 10 and fixed through pins; one end of an upper arm rod adjusting block supporting rod 16 sequentially penetrates through the bottom of the nut and the bottom of the U-shaped buckle to be fixedly connected with a limiting block, and the axial displacement of the upper arm rod adjusting block supporting rod is limited by the limiting block and the nut; of course, it is also possible to connect one end of the upper arm lever adjusting block supporting rod 16 with the other end of the upper arm lever 3 by other conventional structures, so that one end of the upper arm lever adjusting block supporting rod 16 can rotate but cannot move axially on the upper arm lever 3. The other end of the upper arm rod adjusting block supporting rod 16 is in threaded connection with a threaded hole in the adjusting block 15.

The bottom that the nut, U type buckle were passed respectively in proper order to the one end of underarm pole regulating block branch 14 links firmly with the stopper, prescribes a limit to its axial displacement through stopper and nut, and the same reason also can be through other structures commonly used, is connected underarm pole regulating block branch 14's one end and the other end of underarm pole 10 for underarm pole regulating block branch 14's one end can rotate but can not axial displacement under on underarm pole 10. The other end of the lower arm lever adjusting block supporting rod 14 is in threaded connection with a threaded hole in the adjusting block 15.

The upper arm rod 3 is ensured to be parallel to the lower arm rod 10 by adjusting the length of the lower arm rod adjusting block supporting rod 14 and the upper arm rod adjusting block supporting rod 16 screwed into the threaded holes. The sum of the weights of the adjusting block 15, the lower arm adjusting block supporting rod 14 and the upper arm adjusting block supporting rod 16 is equal to the sum of the weights of the upper arm rod weight supporting rod 5, the upper arm rod weight tray 6, the lower arm rod weight supporting rod 8 and the lower arm rod weight tray 9, namely, the weights on the left side and the right side are mutually offset. The adjusting weight 1 is arranged on the upper arm rod 3 and can move along the length direction of the upper arm rod 3, and the adjusting weight is used for adjusting the level of the whole parallel arm rod torque flange calibration device system.

FIG. 1 is a schematic diagram of torque flange positive direction calibration, after the calibration device is installed, the upper arm rod 3 is ensured to be parallel to the lower arm rod 10 by adjusting the lengths of the lower arm rod adjusting block supporting rod 14 and the upper arm rod adjusting block supporting rod 16 screwed into the adjusting block 15, and the level of the whole parallel arm rod torque flange calibration device system is adjusted by using an adjusting weight 1 to ensure the level of the calibration device; then begin to place on upper arm pole weight tray 6 and the lower arm pole weight tray 9 and mark the weight, the demarcation weight on upper arm pole weight tray 6 and the lower arm pole weight tray 9 is respectively and is applyed the decurrent power to upper arm pole 3 and lower arm pole 10 simultaneously, reads the registration of waiting to mark the moment torque flange, realizes maring. The calibration can be realized by selecting the precision and the number of different weights according to different application occasions. When wide-range torque flange is calibrated in the opposite direction, only need to be with the last arm pole weight tray adapter 4 among this calibration device, last arm pole weight branch 5, last arm pole weight tray 6, lower arm pole weight tray adapter 7, lower arm pole weight branch 8, lower arm pole weight tray 9, exchange with arm pole adjusting part's mounted position, can accomplish the calibration work of two positive and negative directions.