CN219062594U

CN219062594U - Force measuring device

Info

Publication number: CN219062594U
Application number: CN202222560121.4U
Authority: CN
Inventors: 刘中桂; 李振; 陈秋磊
Original assignee: Beijing Jinkelong Petroleum Technology Development Co ltd
Current assignee: Beijing Jinkelong Petroleum Technology Development Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-23
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a force measuring device, which comprises a hydraulic cylinder assembly, an upper flange, a lower flange, a supporting rod, an electronic tension-compression gauge and a connecting assembly, wherein the upper flange is connected with the hydraulic cylinder assembly; the end part of the hydraulic cylinder assembly is provided with the upper flange, the lower flange is arranged below the upper flange at intervals, and the upper flange and the lower flange are connected through at least one supporting rod; the telescopic end of the hydraulic cylinder assembly is detachably connected with the upper end of the electronic tension-compression gauge, the lower end of the electronic tension-compression gauge is connected with the connecting assembly, and the connecting assembly is used for being connected with the valve body. The technical effects achieved are as follows: the device can be connected with a valve, the valve is opened and closed by a hydraulic cylinder, and the push-pull force is displayed by an electronic pull-press meter. Therefore, the actual switching force of the valve can be accurately determined, the selection of the electric actuator is facilitated, the most economical electric actuator can be selected, and the cost is saved.

Description

Force measuring device

Technical Field

The utility model relates to the technical field of force measuring devices, in particular to a force measuring device.

Background

When selecting an electric actuator, the valve with electric straight stroke needs to know the maximum push-pull force when the valve is opened and closed, so that the power of the electric actuator is selected.

The prior method is to determine the power of the electric actuator through preliminary rough calculation, but the switching force range of each valve is larger due to the problems of the structure and the processing precision of the valves, so that a large safety coefficient is reserved when the electric actuator is required to be selected, and the electric actuator with higher power is required to be selected; thus resulting in some wastage.

Disclosure of Invention

Therefore, the utility model provides a force measuring device to solve the push-pull force problem of the valve switch under the condition of no electric actuator in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

according to a first aspect of the utility model, a force measuring device comprises a hydraulic cylinder assembly, an upper flange, a lower flange, a support rod, an electronic tension-compression gauge and a connecting assembly;

the end part of the hydraulic cylinder assembly is provided with the upper flange, the lower flange is arranged below the upper flange at intervals, and the upper flange and the lower flange are connected through at least one supporting rod;

the telescopic end of the hydraulic cylinder assembly is detachably connected with the upper end of the electronic tension-compression gauge, the lower end of the electronic tension-compression gauge is connected with the connecting assembly, and the connecting assembly is used for being connected with the valve body.

Further, the hydraulic cylinder assembly comprises a cylinder body, a plug, a first liquid inlet hole, a second liquid inlet hole and a piston; the cylinder body is provided with a hollow accommodating cavity with two open ends, the piston is arranged in the accommodating cavity in a sliding manner, the plug is detachably connected with the upper open end of the accommodating cavity of the cylinder body, and the telescopic rod end of the piston penetrates through the open end of the lower end of the accommodating cavity of the cylinder body and stretches into the space between the lower flange and the upper flange; the piston is characterized in that a first cavity is arranged between the plug and the upper end of the piston, a second cavity is arranged below the lower end of the piston, the plug is provided with a first liquid inlet communicated with the first cavity, and the side wall of the cylinder body is provided with a second liquid inlet communicated with the second cavity.

Further, the plug is in threaded connection with the upper end of the cylinder body.

Further, the piston is provided with a first sealing ring at the joint of the plug and the inner side wall of the accommodating cavity of the cylinder body.

Further, the telescopic cylinder further comprises a second sealing ring, and the second sealing ring (9) is arranged at the joint between the outer side wall of the telescopic rod of the piston and the inner side wall of the lower end open end of the cylinder body.

Further, the lower end of the telescopic rod of the piston is connected with the upper end of the electronic tension-compression gauge in a threaded mode.

Further, the connecting assembly comprises a connecting shaft, a ball head and a union cap, wherein the upper end of the connecting shaft is in threaded connection with the lower end of the electronic tension-compression gauge, the ball head is arranged at the lower end of the connecting shaft, the ball head is embedded in the union cap, and a threaded hole used for being connected with a valve rod is formed in the lower end of the union cap.

Further, the support fastening nut is further included, an upper thread section is arranged at the upper end of the support rod, a lower thread section is arranged at the lower end of the support rod, the upper thread section is detachably connected with the upper flange through the support fastening nut, and the lower thread section is in threaded connection with the lower flange.

Further, the valve assembly further comprises a valve connecting bolt and a valve connecting nut, wherein the valve connecting bolt and the valve connecting nut are used for detachably mounting the lower flange on the valve body.

Further, when the support rods are multiple, the support rods are distributed in an annular array at equal intervals around the axis of the upper flange.

The utility model has the following advantages: the device can be connected with a valve, the valve is opened and closed by a hydraulic cylinder, and the push-pull force is displayed by an electronic pull-press meter. Therefore, the actual switching force of the valve can be accurately determined, the selection of the electric actuator is facilitated, the most economical electric actuator can be selected, and the cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

Fig. 1 is a cross-sectional view of an overall structure of a force measuring device according to some embodiments of the present utility model.

Fig. 2 is a schematic diagram of a supporting rod of a force measuring device according to some embodiments of the present utility model.

Fig. 3 is a partial block diagram of a connection shaft of a force measuring device according to some embodiments of the present utility model.

In the figure: 1. cylinder body, 2, end cap, 3, first feed liquor hole, 4, second feed liquor hole, 5, piston, 6, first cavity, 7, second cavity, 8, first sealing washer, 9, second sealing washer, 10, electron draw-press gauge, 11, upper flange, 12, lower flange, 13, bracing piece, 14, connecting axle, 15, union cap, 16, support fastening nut, 17, valve connecting bolt, 18, valve connecting nut, 19, valve rod, 20, valve body, 21, bulb, 22, upper screw thread section, 23, lower screw thread section.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1 to 3, a force measuring device according to an embodiment of the first aspect of the present utility model includes a hydraulic cylinder assembly, an upper flange 11, a lower flange 12, a support rod 13, an electronic tension and compression gauge 10, and a connection assembly; an upper flange 11 is arranged at the end part of the hydraulic cylinder assembly, a lower flange 12 is arranged below the upper flange 11 at intervals, and the upper flange 11 and the lower flange 12 are connected through at least one supporting rod 13; the telescopic end of the hydraulic cylinder assembly is detachably connected with the upper end of the electronic tension-compression gauge 10, the lower end of the electronic tension-compression gauge 10 is connected with a connecting assembly, and the connecting assembly is used for being connected with the valve body 20.

In the above embodiment, it should be noted that, in use, the push-pull force is read by the electronic tension gauge 10; the hydraulic cylinder components are connected through an upper flange 11, and the valves are connected through a lower flange 12; the lower flange 12 can be connected with flanges of different specifications, and valves of various specifications can be used.

The technical effects achieved by the embodiment are as follows: the device can be connected with a valve, the valve is opened and closed by a hydraulic cylinder, and the push-pull force is displayed by an electronic pull-press meter. Therefore, the actual switching force of the valve can be accurately determined, the selection of the electric actuator is facilitated, the most economical electric actuator can be selected, and the cost is saved.

Example 2

As shown in fig. 1, a force measuring device comprises the whole content of embodiment 1, and besides, a hydraulic cylinder assembly comprises a cylinder body 1, a plug 2, a first liquid inlet 3, a second liquid inlet 4 and a piston 5; the cylinder body 1 is provided with a hollow accommodating cavity with two open ends, the piston 5 is arranged in the accommodating cavity in a sliding manner, the plug 2 is detachably connected to the upper open end of the accommodating cavity of the cylinder body 1, and the telescopic rod end of the piston 5 penetrates through the open end of the lower end of the accommodating cavity of the cylinder body 1 and extends into the space between the lower flange 12 and the upper flange 11; a first cavity 6 is arranged between the plug 2 and the upper end of the piston 5, a second cavity 7 is arranged below the lower end of the piston 5, the plug 2 is provided with a first liquid inlet 3 communicated with the first cavity 6, and the side wall of the cylinder body 1 is provided with a second liquid inlet 4 communicated with the second cavity 7.

For example, the plug 2 is screwed on the upper end of the cylinder 1, and the plug 2 may be mounted on the upper end of the cylinder 1 by any manner such as clamping, welding, riveting, etc.

For example, the piston cylinder further comprises a first sealing ring 8, wherein the first sealing ring 8 is arranged at the joint of the plug 2 and the inner side wall of the accommodating cavity of the cylinder body 1, and the first sealing ring 8 is arranged at the joint of the piston 5 and the inner side wall of the accommodating cavity of the cylinder body 1.

For example, the telescopic rod further comprises a second sealing ring 9, and the second sealing ring 9 is arranged at the joint between the outer side wall of the telescopic rod of the piston 5 and the inner side wall of the lower open end of the cylinder body 1.

Wherein, the first sealing ring 8 and the second sealing ring 9 can be both O-shaped sealing rings.

The technical effects achieved by the embodiment are as follows: through the hydraulic cylinder assembly structure of this embodiment, convenient to detach and maintenance.

Example 3

As shown in fig. 1, a force measuring device includes the whole contents of embodiment 2, except that the lower end of the telescopic rod of the piston 5 is screwed to the upper end of the electronic tension and compression gauge 10, and furthermore, the lower end of the telescopic rod of the piston 5 can be installed to the upper end of the electronic tension and compression gauge 10 in a similar manner.

The technical effects achieved by the embodiment are as follows: the lower end of the telescopic rod of the piston 5 is arranged at the upper end of the electronic tension-compression gauge 10 by adopting threaded connection, so that the initial tension can be adjusted while the disassembly is convenient.

Example 4

As shown in fig. 1, a force measuring device comprises the whole content of embodiment 1, in addition to that, the connecting assembly comprises a connecting shaft 14, a ball head 21 and a union cap 15, the upper end of the connecting shaft 14 is in threaded connection with the lower end of the electronic tension and compression gauge 10, the lower end of the connecting shaft 14 is provided with the ball head 21, the ball head 21 is embedded in the union cap 15, and the lower end of the union cap 15 is provided with a threaded hole for connecting with a valve rod 19.

Specifically, the union cap 15 may also be called a connector, a lumen adapted to the ball head 21 is formed inside the union cap 15, and the ball head 21 is installed on the union cap 15 to form a similar structure of a ball joint universal joint.

The technical effects achieved by the embodiment are as follows: the connection between the connecting shaft 14 and the valve rod 19 adopts a spherical connection, so that errors in installation can be adjusted.

Example 5

As shown in fig. 1, a force measuring device comprises the whole content of embodiment 1, and in addition, a support fastening nut 16, an upper threaded section 22 is arranged at the upper end of a support rod 13, a lower threaded section 23 is arranged at the lower end of the support rod 13, the upper threaded section 22 is detachably connected with an upper flange 11 through the support fastening nut 16, and the lower threaded section 23 is in threaded connection with a lower flange 12; also included are valve attachment bolts 17 and valve attachment nuts 18, the valve attachment bolts 17 and valve attachment nuts 18 together being used to removably mount the lower flange 12 to the valve body 20.

Preferably, when the number of the supporting rods 13 is multiple, the supporting rods 13 are distributed in an annular array at equal intervals around the axis of the upper flange 11, and the number of the supporting rods 13 is set according to the requirement; for example, 4 support rods 13 are adopted, so that the fixing is more firm and the stress is higher.

The technical effects achieved by the embodiment are as follows: the support fastening nut 16 is adopted, so that the upper end of the support rod 13 and the upper flange 11 can be quickly assembled and disassembled; by adopting the valve connecting bolts 17 and the valve connecting nuts 18, the lower flange 12 at the lower end of the supporting rod 13 and the valve body 20 are quickly assembled and disassembled.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

The terms such as "upper", "lower", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present utility model, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present utility model without substantial modification of the technical content.

Claims

1. The force measuring device is characterized by comprising a hydraulic cylinder assembly, an upper flange (11), a lower flange (12), a supporting rod (13), an electronic tension-compression gauge (10) and a connecting assembly;

the end part of the hydraulic cylinder assembly is provided with the upper flange (11), the lower flange (12) is arranged below the upper flange (11) at intervals, and the upper flange (11) and the lower flange (12) are connected through at least one supporting rod (13);

the telescopic end of the hydraulic cylinder assembly is detachably connected with the upper end of the electronic tension-compression gauge (10), the lower end of the electronic tension-compression gauge (10) is connected with the connecting assembly, and the connecting assembly is used for being connected with the valve body (20).

2. A force measuring device according to claim 1, characterized in that the hydraulic cylinder assembly comprises a cylinder body (1), a plug (2), a first liquid inlet (3), a second liquid inlet (4) and a piston (5); the cylinder body (1) is provided with a hollow accommodating cavity with two open ends, the piston (5) is arranged in the accommodating cavity in a sliding manner, the plug (2) is detachably connected with the upper open end of the accommodating cavity of the cylinder body (1), and the telescopic rod end of the piston (5) penetrates through the open end of the lower end of the accommodating cavity of the cylinder body (1) and stretches into the space between the lower flange (12) and the upper flange (11); a first cavity (6) is arranged between the plug (2) and the upper end of the piston (5), a second cavity (7) is arranged below the lower end of the piston (5), the plug (2) is provided with a first liquid inlet (3) communicated with the first cavity (6), and the side wall of the cylinder body (1) is provided with a second liquid inlet (4) communicated with the second cavity (7).

3. A force measuring device according to claim 2, characterized in that the plug (2) is screwed to the upper end of the cylinder (1).

4. A force measuring device according to claim 3, further comprising a first sealing ring (8), wherein the first sealing ring (8) is arranged at the connection of the plug (2) and the inner side wall of the accommodating cavity of the cylinder (1), and the first sealing ring (8) is arranged at the connection of the piston (5) and the inner side wall of the accommodating cavity of the cylinder (1).

5. Force measuring device according to claim 4, further comprising a second sealing ring (9), said second sealing ring (9) being provided at the junction between the outer side wall of the telescopic rod of the piston (5) and the inner side wall of the lower open end of the cylinder (1).

6. Force measuring device according to claim 5, characterized in that the lower end of the telescopic rod of the piston (5) is screwed to the upper end of the electronic tension-compression gauge (10).

7. The force measuring device according to claim 6, wherein the connecting assembly comprises a connecting shaft (14), a ball head (21) and a union cap (15), the upper end of the connecting shaft (14) is in threaded connection with the lower end of the electronic tension and compression gauge (10), the ball head (21) is arranged at the lower end of the connecting shaft (14), the ball head (21) is embedded in the union cap (15), and a threaded hole for connecting with a valve rod (19) is arranged at the lower end of the union cap (15).

8. Force measuring device according to claim 7, further comprising a support fastening nut (16), wherein the upper end of the support bar (13) is provided with an upper threaded section (22), the lower end of the support bar (13) is provided with a lower threaded section (23), the upper threaded section (22) is detachably connected with the upper flange (11) by means of the support fastening nut (16), and the lower threaded section (23) is in threaded connection with the lower flange (12).

9. Force measuring device according to claim 8, further comprising a valve connection bolt (17) and a valve connection nut (18), the valve connection bolt (17) and the valve connection nut (18) together being used for detachably mounting the lower flange (12) on a valve body (20).

10. A force measuring device according to claim 1, characterized in that when a plurality of support rods (13) are provided, a plurality of support rods (13) are distributed in an equally spaced annular array about the axis of the upper flange (11).