CN215448435U

CN215448435U - Torque testing device for pen type injector

Info

Publication number: CN215448435U
Application number: CN202121679045.8U
Authority: CN
Inventors: 马晓; 武文博; 周承鲁; 炊振栋
Original assignee: Jinan Kaien Testing Machine Manufacturing Co ltd; Shandong Institute of Metrology
Current assignee: Jinan Kaien Testing Machine Manufacturing Co ltd; Shandong Institute of Metrology
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-01-07
Anticipated expiration: 2031-07-23

Abstract

The utility model relates to a torque testing device for a pen-type injector, which comprises a box body frame, wherein a workbench is arranged on the upper end surface of the box body frame, a torque sensor is arranged on one side of the workbench, one side of the torque sensor is connected with a sensor output flange, the other side of the sensor output flange is provided with a transverse blocking arm, one end of a clamp far away from the torque sensor is coaxially connected with a driving device, one end of the clamp close to the torque sensor clamps one end of a transversely placed sample, the other end of the sample is provided with a vertical injector torque transmission member, and the injector torque transmission member is matched with the blocking arm for use. One end of the sample is clamped by a clamp, the other end of the sample is provided with an injector torque transmission piece, and the torque of the sample is applied to the baffle arm through the injector torque transmission piece. Because the other end of the sample is not clamped, the influence of factors such as coaxiality and the like does not exist, the sample is just stirred, the torque is obtained by the rotation of the sample, the external factors are reduced to the minimum, and the truest torque of the sample is accurately measured.

Description

Torque testing device for pen type injector

Technical Field

The utility model relates to the field of torque testing, in particular to a torque testing device for a pen-type injector.

Background

Pen injectors are subjected to torque forces during use, requiring torque testing of samples prior to mass production of these products. The torque of the pen-type injector is very small, and normal torque test equipment cannot test the torque at all or cannot test the torque accurately because the torque generated by the influence of external factors is far greater than the torque required by the pen-type injector. The influence that has factors such as coaxial and the centre gripping offset force of equipment about normal torquemeter, if according to conventional equipment direct test, just can guarantee the axiality of equipment and require within range at the national standard, be higher than the moment of torsion that the national standard required also can't be accurate even far away, because the clearance of pen type syringe itself can't guarantee, if hard centre gripping or can press from both sides the sample bad, or arrive one side to the sample clearance, measure the moment of torsion inaccurate.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, a torque testing device for a pen-type injector is provided to solve the problems in the background art. The torque sensor is reasonable in structure, all external factors are reduced to the minimum, and the torque of a sample can be accurately measured.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model provides a pen-type syringe torque testing device, includes the box frame, the box frame up end is provided with the workstation, its workstation up end one side is provided with can horizontal migration's torque testing mechanism, torque testing mechanism includes torque sensor, torque sensor one side connection sensor output flange, sensor output flange opposite side is provided with horizontal fender arm, the opposite side of workstation is provided with anchor clamps, torque sensor's one end coaxial coupling drive arrangement is kept away from to anchor clamps, the one end that sample was transversely placed to the one end centre gripping that anchor clamps are close to torque sensor, vertical syringe torque transmission spare is installed to the other end of sample, syringe torque transmission spare uses with keeping off the arm cooperation.

As a further technical scheme of the utility model: the driving device comprises a motor, the output end of the motor is connected with a speed reducer through a coupler, the output end of the speed reducer is fixedly connected with a clamp flange, and the clamp flange is fixedly connected with a clamp.

As a further technical scheme of the utility model: the driving device is installed on the power end support, and the power end support is fixedly arranged on the upper end face of the workbench.

As a further technical scheme of the utility model: the torque sensor is mounted on the sensor support.

As a further technical scheme of the utility model: the lower end of the sensor support is fixedly connected with a sliding block, and a sliding rail matched with the sliding block is installed on the workbench.

The utility model has the beneficial effects that:

one end of the sample is clamped by the clamp, the other end of the sample is provided with the injector torque transmission piece, the injector torque transmission piece is matched with the baffle arm for use, and the torque of the sample is applied to the baffle arm through the injector torque transmission piece. The injector torque transmission part adopts a nylon 3D printing tool, the weight of the injector torque transmission part is not more than one tenth of the weight of a sample, and the injector torque transmission part is light enough to be ignored. Because the other end of the sample is not clamped, the influence of factors such as coaxiality and the like does not exist, and the torque is obtained by the rotation of the sample. The utility model reduces the external factors to the minimum and accurately measures the truest torque of the sample.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention.

In the figure: 1-box frame, 2-workbench, 3-slide rail, 4-slide block, 5-sensor support, 6-torque sensor, 7-sensor output flange, 8-baffle arm, 9-injector torque transmission part, 10-sample, 11-clamp, 12-clamp flange, 13-power end support, 14-speed reducer and 15-motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a pen-type injector torque testing device, including box frame 1, box frame 1 up end is provided with workstation 2, 2 up end one side of workstation are provided with the torque testing mechanism that can horizontal migration, torque testing mechanism includes torque sensor 6, torque sensor 6 one side connection sensor output flange 7, sensor output flange 7 opposite side is provided with horizontal fender arm 8, torque sensor 6 installs on sensor support 5, sensor support 5 lower extreme fixed connection slider 4, set up on the workstation 2 with slider 4 matched with slide rail 3. The torque testing mechanism is movable along the slide rail 3.

The opposite side of workstation 2 is provided with anchor clamps 11, and the one end centre gripping that anchor clamps 11 is close to torque sensor 6 transversely places the one end of sample 10, and vertical syringe torque transmission spare 9 is installed to the other end of sample 10, and syringe torque transmission spare 9 uses with keeping off the cooperation of arm 8. The injector torque transmission member 9 is installed at one end of the sample 10 and rotates along with the rotation of the sample 10, when the injector torque transmission member 9 rotates along with the sample 10, the torque of the sample 10 is applied to the baffle arm 8 through the injector torque transmission member 9, the baffle arm 8 is fixed at one side of the sensor output flange 7, and the torque of the sample 10 can be measured through the torque sensor 6. The injector torque transmission part 9 adopts a nylon 3D printing tool, the weight of the injector torque transmission part is not more than one tenth of the weight of the sample 10, and the weight is negligibly small.

One end of the clamp 11, far away from the torque sensor 6, is coaxially connected with a driving device, the driving device comprises a motor 15, the output end of the motor 15 is connected with a speed reducer 14 through a coupler, the output end of the speed reducer 14 is fixedly connected with a clamp flange 12, the clamp flange 12 is fixedly connected with the clamp 11, and the driving device is installed on a power end support 13.

The specific implementation mode of the utility model is as follows:

when the torque of a sample 10 needs to be tested, the clamp 11 clamps one end of the sample 10 which is transversely placed, the vertical injector torque transmission part 9 is installed at the other end of the sample 10, and the torque testing mechanism is adjusted to a proper position through the sliding block 4 and the sliding rail 3, so that the vertical injector torque transmission part 9 is in contact with the transverse baffle arm 8. The motor 15 drives the speed reducer 14, the clamp flange 12, the clamp 11 and the sample 10 to rotate, and the torque of the sample 10 is applied to the baffle arm 8 through the injector torque transmission part 9 and is measured through the torque sensor 6.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a pen type syringe torque testing device, includes box frame (1), box frame (1) up end is provided with workstation (2), its characterized in that: workstation (2) up end one side is provided with torque testing mechanism that can horizontal migration, torque testing mechanism includes torque sensor (6), torque sensor (6) one side connection sensor output flange (7), sensor output flange (7) opposite side is provided with horizontal fender arm (8), the opposite side of workstation (2) is provided with anchor clamps (11), the one end coaxial coupling drive arrangement of torque sensor (6) is kept away from in anchor clamps (11), the one end centre gripping that anchor clamps (11) are close to torque sensor (6) transversely places the one end of sample (10), vertical syringe torque transmission spare (9) is installed to the other end of sample (10), syringe torque transmission spare (9) are used with fender arm (8) cooperation.

2. The pen injector torque testing device of claim 1, wherein: the driving device comprises a motor (15), the output end of the motor (15) is connected with a speed reducer (14) through a coupler, the output end of the speed reducer (14) is fixedly connected with a clamp flange (12), and the clamp flange (12) is fixedly connected with a clamp (11).

3. The pen injector torque testing device of claim 2, wherein: the driving device is installed on a power end support (13), and the power end support (13) is fixedly arranged on the upper end face of the workbench (2).

4. A pen injector torque testing device according to claim 3, characterized in that: the torque sensor (6) is arranged on the sensor bracket (5).

5. The pen injector torque testing device of claim 4, wherein: the lower end of the sensor support (5) is fixedly connected with a sliding block (4), and a sliding rail (3) matched with the sliding block (4) is arranged on the workbench (2).