CN109955173A - Disassembly and assembly tools for transmitter end caps - Google Patents

Abstract

The invention provides a disassembly and assembly tool for an end cover of a transmitter, comprising: a body, the cross-section of the body is circular; a clamping claw is movably arranged on the body, and the distance between the clamping claw and the axis of the body can be adjusted For adjustment, the clamping claw is used for clamping with the groove on the end cover of the transmitter; the handle is connected with the body, and the center line of the handle has an included angle with the axis of the body. The technical solution provided by the present invention can solve the problem that the end cover of the transmitter in the prior art is difficult to disassemble and assemble.

Description

Disassembly and assembly tools for transmitter end caps

technical field

The invention relates to the technical field of transmitter tools, in particular, to a disassembly and assembly tool for an end cover of a transmitter.

Background technique

In industrial production, such as oil production, pressure, level and other transmitters are used more and more. When calibrating and maintaining the transmitter, it is necessary to remove and install the end cover on the transmitter. In the prior art, the end caps are usually loosened or tightened by hand or with a wrench, wherein the direct operation by hand is not large enough and the torque is time-consuming and laborious, and operation with a wrench is easy to slip or damage the end cap. It is not easy to disassemble and assemble the end cover of the transmitter through the above two methods, and if the torque is not large enough, the sealing performance of the end cover cannot meet the requirements, and there is a certain safety hazard.

SUMMARY OF THE INVENTION

The invention provides a disassembly and assembly tool for a transmitter end cover, so as to solve the problem that the transmitter end cover is not easy to disassemble and assemble in the prior art.

In order to solve the above problems, the present invention provides a disassembly and assembly tool for the end cover of the transmitter, including: a body, the cross section of the body is circular; The distance between them can be adjusted, and the clamping claw is used for clamping with the groove on the end cover of the transmitter; the handle is connected with the body, and the center line of the handle has an included angle with the axis of the body.

Further, there are multiple claws, the multiple claws are arranged at intervals on the outer peripheral surface of the body, and the centerlines of the multiple claws are all located on the same plane.

Further, the extension line of the center line of the claws passes through the axis of the body, and the included angle between the center lines of two adjacent claws is equal.

Further, there are 6 clamping claws, and the included angle between the center lines of two adjacent clamping claws is 60 degrees.

Further, the clamping claw has two mutually parallel clamping surfaces, the two clamping surfaces are matched with the inner side surface of the groove on the end cover of the transmitter, and the clamping surfaces are parallel to the axis of the body.

Further, the body is a circular plate, the claws are connected to the outer peripheral surface of the circular plate, and the handle is connected to the outer peripheral surface of the circular plate; The outer peripheral surfaces of the rings are connected.

Further, the body has a first end face and a second end face which are arranged opposite to each other, the claws are arranged close to the first end face, and the handle is arranged close to the second end face.

Further, the extension line of the center line of the handle passes through the axis of the body, and the center line of the handle is perpendicular to the axis of the body.

Further, the handle includes: a first rod segment, connected with the body; a second rod segment, connected with the first rod segment, the center line of the second rod segment coincides with the center line of the first rod segment, from the second rod segment to the The direction of the body, the area of the cross section of the first rod segment gradually decreases.

Further, the outer peripheral surface of the second rod segment is knurled.

Applying the technical solution of the present invention, when disassembling the transmitter end cover, the staff holds the handle of the disassembly tool, and then extends the claw on the body into the groove on the transmitter end cover, and the claw It can be securely clamped with the groove, and then the end cover can be easily removed or installed by turning the handle to apply torque. Moreover, since the distance between the claw and the body can be adjusted, the disassembly and assembly tool can be used to disassemble and disassemble the end cover of the transmitter of different specifications. The application of the technical solution of the present invention avoids the problem of insufficient torque and time-consuming and labor-intensive direct operation by hand, and also avoids the problem of easy slippage or damage to the end cover when operated with a wrench, and can use the same set of tools to disassemble and assemble transmitters of different specifications Therefore, the technical solution of the present invention can facilitate the disassembly and assembly of the end cover of the transmitter, and can ensure the sealing and reliability of the end cover.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 shows the structural schematic diagram of the disassembly and assembly tool of the transmitter end cover provided by the present invention;

FIG. 2 shows a side view of the disassembly tool of FIG. 1 .

Wherein, the above-mentioned drawings include the following reference signs:

10, the body; 11, the first end face; 12, the second end face; 20, the jaws; 21, the clamping surface; 30, the handle;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 and FIG. 2 , an embodiment of the present invention provides a disassembly and assembly tool for a transmitter end cover. The disassembly and assembly tool includes a body 10 , a clamping claw 20 and a handle 30 . Wherein, the cross section of the body 10 is circular, the claws 20 are connected with the body 10, and the claws 20 are used for clamping with the grooves on the end cover of the transmitter. The handle 30 is connected to the body 10 , and the center line of the handle 30 has an included angle with the axis of the body 10 .

Applying the technical solution of this embodiment, when disassembling and assembling the transmitter end cover, the staff holds the handle 30 of the disassembly tool with their hands, and then extends the claws 20 on the body 10 into the claws on the transmitter end cover. In the groove, the claws 20 can be securely engaged with the groove, and then the end cap can be easily disassembled or installed by rotating the handle 30 to apply a torque. Since the handle 30 is provided, and one end of the handle 30 is connected with the body 10 , the operator can easily apply a large torque by holding the other end of the handle 30 during operation. When removing the transmitter end cover, the transmitter end cover can be quickly removed by applying a large torque. Correspondingly, when the transmitter end cover is installed, it can be quickly and tightened by applying a large torque Install the transmitter end cap. Therefore, by providing the handle 30, on the one hand, the labor intensity of the staff can be reduced and the operation efficiency can be improved, and on the other hand, the tightness of the end cover connection of the transmitter can be improved, so as to meet the safety requirements such as explosion-proof, and improve the safety of equipment and personnel. Due to the provision of the claws 20, when removing or installing the end cover of the transmitter, the claws 20 can be reliably snapped into the grooves on the end cover of the transmitter, thereby preventing the tool from slipping or damaging the end cover, and facilitating the Apply torque. Moreover, since the distance between the clamping claw 20 and the axis of the main body 10 can be adjusted, the disassembly and assembly tool can be used to disassemble and disassemble the transmitter end covers of different specifications, which increases the versatility of the disassembly and assembly tool.

Specifically, in this embodiment, a chute can be provided on the main body 10 , and the claws 20 can be slidably provided in the chute. In this way, the distance between the jaws 20 and the axis of the body 10 can be adjusted by sliding the jaws 20 in the chute, so as to be matched with end covers of transmitters of different specifications. After the clamping claw 20 is adjusted to a predetermined position, the position of the clamping claw 20 on the body 10 can be fixed by a fastener, so as to ensure the reliability of the disassembly and assembly tool and facilitate the application of torque.

Applying the technical solution of this embodiment, the rotation of the handle 30 drives the claw 20 on the body 10 to rotate, and the cooperation between the claw 20 and the groove drives the end cover of the transmitter to rotate, so that the end cover can be easily and quickly disassembled or installed. cover. This avoids the problem of insufficient torque and time-consuming and labor-intensive direct manipulation by hand in the prior art, and also avoids the problem of easy slippage or damage to the end cap when operated with a common wrench. Therefore, the disassembly and assembly tool provided in this embodiment can facilitate the disassembly and assembly of the end cover of the transmitter, and can ensure the sealing and reliability of the end cover. For example, using the disassembly tool for the calibration and maintenance of Rosemount pressure, liquid level and other transmitters can achieve convenient and efficient operation at a lower cost, ensuring the normal operation of the equipment and the smooth progress of production.

Specifically, a plurality of claws 20 of the dismounting tool can be provided, the plurality of claws 20 are arranged at intervals on the outer peripheral surface of the main body 10 , and the centerlines of the plurality of claws 20 are all located on the same plane. The plurality of claws 20 are arranged in a one-to-one correspondence with the plurality of grooves on the end cover of the transmitter, and the centerlines of the plurality of claws 20 are arranged on the same plane, so that the plurality of claws 20 can be clamped to the plurality of grooves at the same time. in the slot. When using the disassembly and assembly tool, a plurality of clamping claws 20 can be respectively clamped into a groove on the end cover of the transmitter, which can increase the firmness of the clamping between the disassembly and assembly tool and the end cover. 20 are mutually restrained to prevent the claws 20 from slipping, so that the end cover can be disassembled and assembled more smoothly. After the clamping jaws 20 are arranged in multiples, the structural strength is increased, and a larger torque can be applied to the end cap through the joint action of the plurality of clamping jaws 20, so that the efficiency of disassembling and assembling the end cap and the sealing performance of the end cap after installation can be improved. , and can also prolong the service life of the disassembly tool.

In this embodiment, the extension line of the center line of the jaws 20 passes through the axis of the body 10 , and the included angles between the centerlines of two adjacent jaws 20 are equal. By passing the extension line of the center line of the jaw 20 through the axis of the body 10, the setting angle of the jaw 20 can be matched with the setting angle of the groove on the end cover of the transmitter, so that the clamping jaw 20 and the groove can be easily locked. catch. Setting the included angle between the centerlines of the two adjacent jaws 20 to an equal angle can increase the versatility of the dismantling tool, that is, as long as one jaw 20 is clamped into any groove in the correct position, The other claws 20 can be locked into other corresponding grooves at the same time. In this way, when the transmitter end cover is disassembled, the disassembly tool and the transmitter end cover can have multiple matching positions, thereby facilitating the use of the disassembly tool.

The size of the body 10, the size and the number of the jaws 20 in the disassembly tool should match the size and number of the end cover of the transmitter and the size and number of the grooves on the end cover. For example, there are 6 grooves on the end cover of the transmitter, and the angle between the centerlines of the adjacent grooves is 60 degrees. As shown in FIG. 1 , the number of clamping claws 20 may be correspondingly set to 6, and the included angle between the center lines of two adjacent clamping claws 20 is 60 degrees. In this way, the matching of the disassembly tool and the transmitter end cover can be ensured, and the disassembly tool and the transmitter end cover can have multiple matching positions, so that it is convenient to use the disassembly tool to disassemble and install the transmitter end cover.

As shown in FIG. 1 , the clamping claw 20 has two clamping surfaces 21 parallel to each other, the two clamping surfaces 21 match the inner side of the groove on the end cover of the transmitter, and the clamping surface 21 is aligned with the axis of the body 10 . parallel. The clamping claw 20 and the groove are clamped through the cooperation between the two clamping surfaces 21 on the clamping claw 20 and the inner side of the groove, so that the transmitter end cover is disassembled and assembled using a disassembly and assembly tool. In order to facilitate the connection or separation of the claw 20 and the groove while the clamping is firm, a certain gap is set between the claw 20 and the groove, that is, the distance between the two clamping surfaces 21 is set to be smaller than the groove. The distance between the two inner sides. The specific value of the gap can be set according to the size of the groove and the processing technology. In order to facilitate the processing of the jaws 20 , the jaws 20 may be configured as rectangular parallelepipeds.

In this embodiment, the body 10 in the disassembly and assembly tool can be set to different structures. For example, the body 10 can be set as a circular plate, the claws 20 are connected to the outer peripheral surface of the circular plate, and the handle 30 is connected to the outer peripheral surface of the circular plate; or the body 10 can be set as a circular ring, and the claws are connected 20 is connected to the outer peripheral surface of the ring, and the handle 30 is connected to the outer peripheral surface of the ring. Setting the body 10 as a circular plate can increase the structural strength of the device, and the size of the circular plate should match the size of the end cover of the transmitter. Setting the body 10 as a circular ring can reduce the weight of the device, so as to facilitate the operation of the staff, and the size of the circular ring should match the size of the end cover of the transmitter. Among them, the circular plate can be made of steel plate, and the ring can be made of steel pipe. The above two methods have simple structure and low processing cost.

As shown in FIG. 2 , the main body 10 has a first end surface 11 and a second end surface 12 arranged opposite to each other. When using the disassembly tool, the first end face 11 of the main body 10 is close to the end cover of the transmitter. This arrangement can prevent the handle 30 from interfering with the end cover of the transmitter, and make the claws 20 and the groove on the end cover of the transmitter. It is firmly snapped to facilitate the removal and installation of the transmitter cover.

Preferably, in an embodiment of the present invention, the extension line of the center line of the handle 30 passes through the axis of the body 10 , and the center line of the handle 30 is perpendicular to the axis of the body 10 . This arrangement facilitates the application of torque, thereby reducing the labor intensity of workers.

Further, the handle 30 of the disassembly tool includes a first rod section 31 and a second rod section 32, wherein the first rod section 31 is connected with the body 10, the second rod section 32 is connected with the first rod section 31, and the second The centerline of the rod segment 32 coincides with the centerline of the first rod segment 31 . Also, from the direction from the second rod segment 32 to the body 10 , the area of the cross-section of the first rod segment 31 gradually decreases. In this way, the portion of the handle 30 close to the body 10 has a smaller cross-section, thereby preventing the handle of the disassembly tool from interfering with the transmitter end cap when the disassembly tool is used. As shown in FIG. 2 , the first rod section 31 and the second rod section 32 are integral structures, and two inclined surfaces are provided on the second rod section 32 , and the cross section of the second rod section 32 can be changed through the two inclined surfaces.

In this embodiment, the handle 30 can be made of 45# carbon steel, and the total length of the handle 30 can be set to 50mm to 70mm, of course, it can also be set to other values according to the needs of applying torque. Wherein, the angle between the inclined plane on the second rod section 32 and the axis of the second rod section 32 may be set to be 5 degrees to 15 degrees.

In order to facilitate the use of disassembly and assembly tools, the outer peripheral surface of the second rod segment 32 is knurled. When using the disassembly and assembly tool, the worker holds the second rod section 32 to apply a moment to the end cover of the transmitter, which can prevent the hand from slipping, thereby facilitating the use of the disassembly and assembly tool. The depth of the teeth produced by the knurling process may be set to 0.2 to 0.7 mm, and the distance of adjacent teeth may be set to be 0.2 to 0.7 mm. In this embodiment, the depth of the teeth is set to 0.5mm, and the distance between adjacent teeth is set to 0.5mm.

In order to reduce the manufacturing cost of the disassembly and assembly tool, the body 10 , the jaw 20 and the handle 30 can be processed separately, and then the three are connected together by welding. This not only ensures the structural strength of the disassembly and assembly tool, but also reduces the processing difficulty and material consumption, thereby reducing the manufacturing cost of the disassembly and assembly tool. For transmitter end covers of different models or sizes, matching disassembly and assembly tools can be manufactured separately, and the size of each structure on the disassembly and assembly tool can be set according to the size of the transmitter end cover.

Applying the technical solution of the present invention, when disassembling and assembling the transmitter end cover, the staff holds the handle 30 of the disassembly tool by hand, and then extends the claws 20 on the main body 10 into the concave grooves on the transmitter end cover. In the groove, the claws 20 can be securely engaged with the groove, and then the end cap can be easily disassembled or installed by turning the handle 30 to apply a torque. Applying torque through the handle 30 can, on the one hand, reduce the labor intensity of the staff and improve the operation efficiency, and on the other hand, can improve the sealing performance of the end cover connection of the transmitter, so as to meet the safety requirements such as explosion-proof, and improve the safety of equipment and personnel. Since the clamping claws 20 are provided, and multiple clamping claws 20 can be set, when the transmitter end cover is removed or installed, the plurality of clamping claws 20 can be reliably clamped to the corresponding grooves on the transmitter end cover This prevents tool slippage or damage to the end cap and facilitates torque application. The rotation of the handle 30 drives the claw 20 on the body 10 to rotate, and the end cover of the transmitter is driven to rotate through the cooperation of the claw 20 and the groove, so that the end cover can be easily and quickly disassembled or installed. By applying the technical solution of the present invention, the rotation of the handle 30 drives the claw 20 on the main body 10 to rotate, and the cooperation between the claw 20 and the groove drives the end cover of the transmitter to rotate, so that the end cover can be easily and quickly disassembled or installed . This avoids the problem of insufficient torque and time-consuming and labor-intensive direct manipulation by hand in the prior art, and also avoids the problem of easy slippage or damage to the end cap when operated with a common wrench. Therefore, the disassembly and assembly tool can facilitate the disassembly and assembly of the end cover of the transmitter, and can ensure the sealing and reliability of the end cover. Moreover, since the distance between the clamping claw 20 and the axis of the main body 10 can be adjusted, the disassembly and assembly tool can be used to disassemble and disassemble the transmitter end covers of different specifications, which increases the versatility of the disassembly and assembly tool.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized description. In all examples shown and discussed herein, any specific value should be construed as illustrative only and not as limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present invention, it should be understood that the orientations indicated by orientation words such as "front, rear, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. Or the positional relationship is usually based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and these orientation words do not indicate or imply the indicated device or element unless otherwise stated. It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be construed as a limitation on the protection scope of the present invention; the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood to limit the scope of protection of the present invention.

Claims (10)

1. A disassembly and assembly tool for a transmitter end cover, characterized in that, comprising: a body (10), the cross-section of the body (10) is circular; A clamping claw (20) is movably arranged on the main body (10), the distance between the clamping claw (20) and the axis of the main body (10) is adjustable, and the clamping claw (20) is used for to be snapped into the groove on the end cover of the transmitter; A handle (30) is connected to the body (10), and the center line of the handle (30) has an included angle with the axis of the body (10). 2. The dismounting tool according to claim 1, characterized in that, there are a plurality of said claws (20), and a plurality of said claws (20) are arranged at intervals on the outer peripheral surface of said main body (10). , the centerlines of the plurality of jaws (20) are all located on the same plane. 3. The dismounting tool according to claim 2, characterized in that, the extension line of the center line of the jaw (20) passes through The axis of the body (10) and the included angle between the center lines of two adjacent jaws (20) are equal. 4. The disassembly and assembly tool according to claim 2, characterized in that, there are 6 said clamping claws (20), and two adjacent claws (20) The angle between the centerlines of the jaws (20) is 60 degrees. 5. The dismounting tool according to claim 1, characterized in that, the clamping claw (20) has two clamping surfaces (21) parallel to each other, and the two clamping surfaces (21) are connected to the The inner sides of the grooves on the end cover of the transmitter are matched, and the clamping surface (21) is parallel to the axis of the body (10). 6. The disassembly tool according to claim 1, characterized in that, The body (10) is a circular plate, the claws (20) are connected to the outer peripheral surface of the circular plate, and the handle (30) is connected to the outer peripheral surface of the circular plate; or, The body (10) is a circular ring, the claws (20) are connected with the outer peripheral surface of the circular ring, and the handle (30) is connected with the outer peripheral surface of the circular ring. 7. The disassembly and assembly tool according to claim 1, characterized in that, the body (10) has a first end surface (11) and a second end surface (12) oppositely arranged, and the jaws (20) are close to the The first end surface (11) is arranged, and the handle (30) is arranged close to the second end surface (12). 8. The disassembly and assembly tool according to claim 1, characterized in that, the extension line of the center line of the handle (30) passes through The axis of the body (10) and the centerline of the handle (30) are perpendicular to the axis of the body (10). 9. The disassembly tool according to claim 1, wherein the handle (30) comprises: a first rod segment (31), connected with the body (10); The second rod section (32) is connected to the first rod section (31), and the centerline of the second rod section (32) is connected to the The centerlines of the first rod segment (31) coincide, and in the direction from the second rod segment (32) to the body (10), the The area of the cross section of the first rod segment (31) gradually decreases. 10. The dismounting tool according to claim 9, characterized in that the outer peripheral surface of the second rod segment (32) is knurled.