CN211347184U - Stop valve plastic hand wheel torque testing device - Google Patents

Abstract

The utility model provides a stop valve plastics hand wheel torque testing arrangement relates to the torque test field for test plastics hand wheel moment of torsion, it includes the base, fixes fixed mould, movable mould and the torque measurement subassembly on the base, the fixed mould upper surface is inwards offered and is had the first minute chamber of first side open-ended, the movable mould upper surface is inwards offered and is had the second side open-ended second minute chamber that corresponds with first side opening, works as the fixed mould with when the movable mould compound die is fixed, first minute chamber with the second divides the chamber to combine to form the die cavity, the die cavity is arranged in to the plastics hand wheel, the convenient test of moment of torsion pertinence of the last installation torque measurement subassembly of plastics hand wheel of stop valve has been realized.

Description

Stop valve plastic hand wheel torque testing device

Technical Field

The utility model relates to a torque test field, concretely relates to stop valve plastics hand wheel torque testing arrangement.

Background

In the aspect of our lives, various parts and devices are involved, and there are no few parts and devices that can rotate under external force. The torque of the parts and the devices rotating under the action of the external force is particularly important in practical application, and particularly, the maximum torque of the parts and the devices rotating under the action of the external force has a remarkable significance on whether the parts and the devices meet the use requirements or not. Generally, during or after the manufacturing process of the components and devices capable of rotating under the action of external force, a tester performs a torque test on the components and devices to test whether the components and devices meet the requirement of required torque, so as to determine whether the components and devices meet the required performance. Generally, the torque test is mainly used for detecting the maximum torque which can be borne by a product or a part when the product or the part rotates under the action of external force so as to determine whether the product or the part meets the use requirement.

In the valve for the feedwater, the stop valve for the feedwater is comparatively common, and its hand wheel generally is ordinary iron system, and the iron system hand wheel is corroded easily under the effect of long-term use and environment that is used, often leads to the phenomenon that life is shorter. The iron hand wheel is corroded to bring inconvenience to the user and even bury potential safety hazards, when the iron hand wheel is corroded, an iron tip appears, the safety of the user cannot be guaranteed, and the safety problem is easy to generate. If iron is changed into stainless steel, the production cost is higher, while the production cost of the plastic hand wheel is lower, and more importantly, the plastic hand wheel is not easy to corrode in the using process and can meet the using requirement.

The mechanical strength of the plastic hand wheel is not higher than that of an iron hand wheel, the torque test is mainly used for testing the maximum torque which can be borne by the plastic hand wheel in the closing process of the stop valve, and whether the maximum torque value meets the standard or not is an important technical parameter for evaluating the quality of the plastic hand wheel.

At present, no national standard and special detection equipment exists for detecting the torque of the hand wheel of the stop valve, and few proper devices are used for detecting and evaluating the maximum torque which can be borne by the plastic hand wheel in the use process in enterprise production. Whether the maximum torque is far larger than the maximum torque (5-8N m) when the stop valve is closed by hands of an adult or not is a key technical index for evaluating whether the plastic hand wheel meets the use requirement or not.

At patent number CN202204735U, "a pipe fitting screws up torque testing machine" belongs to pipe fitting torque test equipment technical field, and this pipe fitting screws up torque testing machine manufacturing cost is higher, and some special construction's product or spare part need the customization auxiliary clamp.

SUMMERY OF THE UTILITY MODEL

The special problem that detects the mode and is short of the plastics hand wheel moment of torsion of stop valve based on above-mentioned current technique exists to the special problem that detects the mode and is short of the plastics hand wheel moment of torsion of the stop valve for solving above-mentioned current technique existence, the utility model provides a stop valve plastics hand wheel moment of torsion testing arrangement to make the special technical problem that detects the mode and is short of the plastics hand wheel moment of torsion of the stop valve to above-mentioned current technique exists, provide following technical scheme:

the utility model provides a stop valve plastic hand wheel torque testing device for test plastic hand wheel moment of torsion, this stop valve plastic hand wheel torque testing device include the base, fix fixed mould, movable mould and the torque measurement subassembly on the base, the fixed mould upper surface is inwards offered and is had the first branch chamber of first side open-ended, the movable mould upper surface is inwards offered and is had the second side open-ended second that corresponds with first side opening and divide the chamber, works as the fixed mould with when the movable mould compound die is fixed, first branch chamber with the second divides the chamber to combine to form the die cavity, the die cavity is arranged in to the plastic hand wheel, install torque measurement subassembly on the plastic hand wheel.

Further, the torque measuring assembly comprises an auxiliary clamp and a torque measurer, and the torque measurer is mounted on the auxiliary clamp.

Further, the torque measurer is a torque wrench, and the torque wrench is mounted on the auxiliary clamp.

Further, the movable mould comprises a mould main body and a supporting rod, and the mould main body integrally extends to form the supporting rod.

Furthermore, the mould main body comprises a mould closing part and a mould embedding part, wherein the side surface of the mould closing part integrally extends to form the mould embedding part, and the mould embedding part is movably inserted into the fixed mould.

Furthermore, an end hole is formed in the end portion of the supporting rod, a screw rod is arranged in the end hole in a matched mode, and the screw rod penetrates through the end hole.

Further, at least one end of the screw rod integrally extends to form a protrusion.

Further, the base includes base foot and fixed platform, the base foot is fixed on the fixed platform, set up the reinforcement between the base foot.

Furthermore, a groove body matched with the plastic hand wheel is inwards formed in the surface of one side of the auxiliary clamp, a convex edge integrally extends from the surface of the other side of the auxiliary clamp, and the convex edge is connected with the torque wrench in a matched mode.

Further, the base feet are integrally extended outwards to form the flat blocks.

An object of the utility model is to provide a stop valve plastics hand wheel testing arrangement, this stop valve plastics hand wheel testing arrangement detect to stop valve plastics hand wheel, with strong points.

Another object of the utility model is to provide a stop valve plastic hand wheel testing arrangement, this stop valve plastic hand wheel testing arrangement can test the maximum torque that the stop valve can bear at the plastics hand wheel of closing in-process, measures maximum torque and whether be far more than maximum torque when the stop valve is closed with the hand to adult.

Another object of the utility model is to provide a stop valve plastic hand wheel testing arrangement, this stop valve plastic hand wheel testing arrangement realize detecting the torsion of stop valve plastic hand wheel through an auxiliary fixture and torsion caliber butt joint installation.

Another object of the utility model is to provide a stop valve plastic hand wheel testing arrangement, this stop valve plastic hand wheel testing arrangement simple structure, low in manufacturing cost.

Another object of the utility model is to provide a stop valve plastic hand wheel testing arrangement, this stop valve plastic hand wheel testing arrangement easy operation, it is convenient to test.

Drawings

Fig. 1 is a schematic structural view of a stop valve plastic hand wheel torque testing device provided by the present invention;

fig. 2 is a schematic view of a mold closing structure of a fixed mold and a movable mold of a stop valve plastic hand wheel torque testing device provided by the present invention;

FIG. 3 is a schematic structural view of a stop valve plastic handwheel torque testing device according to the present invention, in which a movable mold moves to a certain position;

fig. 4 is a left side view of the stop valve plastic hand wheel torque testing device provided by the present invention;

fig. 5 is a schematic structural view of an auxiliary clamp of a stop valve plastic hand wheel torque testing device provided by the present invention;

fig. 6 is a front view of an auxiliary clamp of a stop valve plastic hand wheel torque testing device provided by the present invention;

fig. 7 is a bottom view of the auxiliary clamp of the stop valve plastic handwheel torque testing device provided by the utility model.

In the figure: the device comprises a fixed die-1, a first cavity-11, a movable die-2, a second cavity-21, a die main body-22, a die closing part-221, a die embedding part-222, a supporting rod-23, a base-3, a base foot-31, a flat block-311, a fixed platform-32, a torque measuring component-4, a screw rod-5, a protrusion-51, an auxiliary clamp-41, a groove body-411, a protruding edge-412, a torque measuring device-42, a torque wrench-421, a reinforcing member-6 and a die cavity-7.

Detailed Description

The present invention is further described below with reference to fig. 1-7 and the detailed description.

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

The utility model provides a stop valve plastics hand wheel torque testing arrangement for test plastics hand wheel moment of torsion, this stop valve plastics hand wheel torque testing arrangement include base 3, fix fixed mould 1, activity mould 2 and moment of torsion measuring subassembly 4 on base 3, fixed mould 1 upper surface is inwards established and is had first side open-ended first minute chamber 11, 2 upper surfaces of activity mould are inwards established and are had the second side open-ended second that corresponds with first side open-ended and divide chamber 21, work as fixed mould 1 with when 2 compound dies of activity mould are fixed, first minute chamber 11 with the second divides chamber 21 to combine to form die cavity 7, the plastics hand wheel is arranged in die cavity 7, installation moment of torsion measuring subassembly 4 on the plastics hand wheel is convenient for measure the moment of torsion of plastics hand wheel, tests whether its maximum torque satisfies the operation requirement. Particularly, fixed mould 1 is arbitrary shape, in the embodiment of the utility model discloses an in the fixed mould 1 intermediate part be the rectangle block, from the rectangle terminal surface inwards set up a through-hole, be convenient for the movable mould 2 insert and remove in the through-hole direction, cuboid both sides face bottom is the outside fixed block that extends of an organic whole respectively, the fixed block with fixed platform 32 fixed connection, fixed connection mode include but not limited to threaded connection, for example the rifle nail is fixed etc. the utility model discloses an adopt bolt-up connection in the embodiment for fixed mould 1 is fixed in certain position, can not remove, and the degree of freedom restriction that gives movable mould 2 simultaneously is in certain extent. In particular, the cavity 7 conforms to the shape of the shut-off valve.

Further, the torque measuring assembly 4 includes an auxiliary jig 41 and a torque measuring device 42, and the torque measuring device 42 is mounted on the auxiliary jig 41. It should be noted that, since it is difficult to directly connect the stop valve plastic hand wheel to the torque measuring device 42, a groove matched with the stop valve plastic hand wheel is provided at one end of the auxiliary clamp 41, and the other end is connected to the torque measuring device 42.

Further, the torque measuring device 42 is a torque wrench 421, and the torque wrench 421 is mounted on the auxiliary clamp 41. Specifically, the torque measurer 42 is a force application member with a torque sensor, including but not limited to the torque wrench 421. The torque wrench 421 has a set of holes therein, the set of holes is established on the adaptation end of the auxiliary clamp 41, so that the torque wrench 421 is connected with the adaptation of the auxiliary clamp 41, and when an operator applies force to the torque wrench 421, the torque wrench 421 and the adaptation end of the auxiliary clamp 41 generate static friction force, so that the state of the torque to be measured is that the torque wrench 421 and the adaptation end of the auxiliary clamp 41 are relatively static, and the plastic hand wheel is tested.

Further, the movable mold 2 includes a mold main body 22 and a support rod 23, and the mold main body 22 integrally extends to form the support rod 23. The supporting rod 23 reduces the overall weight of the device, and simultaneously, the movable die 2 can move in a certain range and in a certain direction.

Further, the mold main body 22 includes a mold closing portion 221 and an insert molding portion 222, the side surface of the mold closing portion 221 integrally extends to form the insert molding portion 222, and the insert molding portion 222 is movably inserted into the fixed mold 1. In the present embodiment of the present invention, the insert mold part 222 and the fixed mold 1 form the mold main body 22 of an L shape, but the mold main body 22 is not limited to such an L-shaped structure, for example, a rectangular parallelepiped pin structure. The insert mold portion 222 is inserted into the through hole so as to move in the direction of the through hole.

Furthermore, an end hole is formed in the end portion of the supporting rod 23, a screw rod 5 is arranged in the end hole in a matched mode, and the screw rod 5 penetrates through the end hole. The arrangement of the screw rod 5 is convenient for an operator to push and pull the screw rod 5 for die assembly or demoulding, and the design of the push and pull posture of the operator is met.

Further, at least one end of the screw rod 5 integrally extends to form a protrusion 51. The protrusion 51 blocks the movement of the screw 5 beyond the limit, thereby preventing the screw 5 from being separated from the support rod 23.

Further, the base 3 comprises base feet 31 and a fixed platform 32, the base feet 31 are fixed on the fixed platform 32, and reinforcing members 6 are arranged between the base feet 31. The reinforcing member 6 is a rectangular plate with a hollow center, and is fixedly connected between the base legs 31, preferably by a gun nail. In one embodiment, the reinforcement members 6 are surrounding rods that surround the base legs 31 for reinforcement.

Further, a groove 411 matched with the plastic hand wheel is formed in the surface of one side of the auxiliary clamp 41 inwards, a protruding edge 412 extends from the surface of the other side of the auxiliary clamp 41 integrally, and the protruding edge 412 is connected with the torque wrench 421 in a matched mode. Specifically, the torque wrench 421 is sleeved on the ridge 412, and the ridge 412 is a hexagonal ridge 412.

Further, the base feet 31 are integrally extended outward to extend the flat pieces 311. The flat block 311 is fixed with the ground expansion screw in this embodiment of the present invention. The flat section 311 is in one embodiment placed directly on the ground.

The specific operation is as follows: firstly, separating a fixed die 1 from a cavity 7 of a movable die 2, and placing a stop valve into a first cavity 11 to be matched with the first cavity 11; secondly, an operator uses a screw rod 5 to give certain thrust until the movable die 2 and the fixed die 1 are matched and fixed; thirdly, one end of the auxiliary clamp 41, which is adapted to the plastic hand wheel, is embedded with the plastic hand wheel, and the hexagonal convex edge 412 at the other end of the auxiliary clamp 41 is inserted into the torque wrench 421, that is, the torque wrench 421 is sleeved on the auxiliary clamp 41; and fourthly, an operator applies force to the torque wrench 421, the torque wrench 421 displays the torque in real time, and the maximum torque is measured until the stop valve is closed, so that the test of the maximum torque is completed. In other words, the opposite surfaces of the fixed die 1 and the movable die 2 are respectively provided with a first sub-cavity 11 and a second sub-cavity 21, after the fixed die 1 and the movable die 2 are separated, the stop valve is positioned in the first sub-cavity 11 on the side wall of the fixed die 1, the movable die 2 is pushed by the lead screw 5 to complete die assembly with the fixed die 1, so that the stop valve is embedded in the die cavity 7, the position of the stop valve is fixed, the stop valve is in an unstressed state, a plastic hand wheel on the stop valve is in butt joint installation with the torque wrench 421 through one auxiliary clamp 41, and torque testing of the plastic hand wheel of the stop valve is realized through rotation of the torque wrench 421.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention can be modified or modified in any way.

It can thus be seen that the objects of the invention have been fully and effectively accomplished. The embodiment has been shown and described in sufficient detail to explain the functional and structural principles of the invention and that changes may be made without departing from such principles. Accordingly, this invention includes all modifications encompassed within the scope and spirit of the following claims.

Claims (10)

1. The utility model provides a stop valve plastics hand wheel torque testing arrangement for test plastics hand wheel moment of torsion, its characterized in that, including base (3), fixed mould (1), movable mould (2) and moment of torsion measuring subassembly (4) on base (3), fixed mould (1) upper surface is inwards established and is had first side open-ended first minute chamber (11), movable mould (2) upper surface is inwards established and is had second side open-ended second branch chamber (21) that corresponds with first side open-ended, works as fixed mould (1) with when movable mould (2) compound die is fixed, first minute chamber (11) with second branch chamber (21) combine to form die cavity (7), the plastics hand wheel is arranged in die cavity (7), install moment of torsion measuring subassembly (4) on the plastics hand wheel.

2. The stop valve plastic hand wheel torque testing device according to claim 1, wherein the torque measuring assembly (4) comprises an auxiliary clamp (41) and a torque measurer (42), and the torque measurer (42) is installed on the auxiliary clamp (41).

3. The stop valve plastic hand wheel torque testing device according to claim 2, characterized in that the torque measurer (42) is a torque wrench (421), and the torque wrench (421) is installed on the auxiliary clamp (41).

4. The stop valve plastic hand wheel torque testing device according to claim 1, characterized in that the movable die (2) comprises a die main body (22) and a support rod (23), and the die main body (22) integrally extends to form the support rod (23).

5. The stop valve plastic hand wheel torque testing device according to claim 4, wherein the mold main body (22) comprises a mold closing part (221) and an insert mold part (222), the side surface of the mold closing part (221) integrally extends to form the insert mold part (222), and the insert mold part (222) is movably inserted into the fixed mold (1).

6. The torque testing device for the plastic hand wheel of the stop valve according to claim 4, wherein an end hole is formed in the end portion of the support rod (23), a screw rod (5) is arranged in the end hole in a matched mode, and the screw rod (5) penetrates through the end hole.

7. The stop valve plastic hand wheel torque testing device according to claim 6, characterized in that at least one end part of the screw rod (5) is integrally extended to form a protrusion (51).

8. The stop valve plastic hand wheel torque test device according to any one of claims 1-7, characterized in that the base (3) comprises base feet (31) and a fixed platform (32), the base feet (31) are fixed on the fixed platform (32), and a reinforcing member (6) is arranged between the base feet (31).

9. The stop valve plastic hand wheel torque testing device according to claim 3, characterized in that a groove (411) matched with the plastic hand wheel is formed in one side surface of the auxiliary clamp (41) inwards, a convex edge (412) integrally extends from the other side surface of the auxiliary clamp (41), and the convex edge (412) is connected with the torque wrench (421) in a matched manner.

10. The stop valve plastic hand wheel torque testing device according to claim 8, characterized in that the base feet (31) are integrally extended outward extending flat blocks (311).

Images