CN217143752U - Switching tool of torque wrench for reciprocating compressor fastener - Google Patents

Abstract

The application discloses reciprocating compressor is torque wrench's for fastener switching tool, including the wrench body, locating piece and torque wrench sleeve, the first locating piece mating holes that link up is seted up to the upper end of the wrench body, the second locating piece mating holes that link up is seted up to the lower extreme of the wrench body, the right of locating piece sets up in first locating piece mating holes, the left side and the torque wrench sleeve of locating piece cooperate, the telescopic left side of torque wrench sets up to fastener cooperation groove, fastener cooperation groove cooperates on the fastener, the second locating piece mating holes of wrench body lower extreme cooperatees with torque wrench, when second locating piece mating holes and torque wrench match, contained angle between the wrench body and the torque wrench has multiple selection. The reciprocating compressor can solve the problems that all parts of the existing reciprocating compressor need to be connected through fasteners, but the individual fasteners cannot be fastened due to space limitation, and the required torque value cannot be achieved.

Description

Switching tool of torque wrench for reciprocating compressor fastener

Technical Field

The application relates to the technical field of wrenches, in particular to a torque wrench switching tool for a reciprocating compressor fastener.

Background

The reciprocating compressor is composed of many parts, and these parts need to be connected by studs, such as between the cylinder head, the cylinder seat and the cylinder body, and between the cylinder body and the connecting tube, or between the body and the middle body. The connecting studs need to have good mechanical properties, the number of the connecting studs is matched with the diameter of the connecting studs, the connecting studs can be completely sealed, and the connecting studs can have infinite service life under the action of alternating loads. In the fastening process of each stud, the requirement on the pretightening force of the stud is very important. The connection of the parts of the cylinder itself, the connection of the piston rod and the crosshead, the connecting rod bolts, etc. all involve fastening problems. During the tightening process, the pre-tightening force value required in the drawing is ensured to be achieved, and the situation that the pre-tightening force value is too small or too large is not suitable. Torque wrenches or hydraulic tightening are commonly used.

At present, a common tool for screwing the fasteners is a torque wrench, one end of a sleeve is connected with the fasteners, the other end of the sleeve is connected with the wrench, and the fastening is started after the requirement of pretightening force at the position in a drawing is met by adjusting the measurement value of the torque wrench.

SUMMERY OF THE UTILITY MODEL

Therefore, the application provides an adapter tool of a torque wrench for a fastener of a reciprocating compressor, which aims to solve the problems that each part of the existing reciprocating compressor needs to be connected by the fastener, but the individual fastener cannot be fastened due to space limitation, and the required torque value cannot be achieved.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a reciprocating compressor is torque wrench's for fastener switching tool, includes wrench body, locating piece and torque wrench sleeve, the first locating piece mating holes that link up is seted up to wrench body's upper end, the second locating piece mating holes that link up is seted up to wrench body's lower extreme, the right of locating piece sets up in first locating piece mating holes, the left side and the torque wrench sleeve of locating piece cooperate, the telescopic left side of torque wrench sets up to fastener cooperation groove, fastener cooperation groove cooperates on the fastener, the second locating piece mating holes of wrench body lower extreme cooperatees with torque wrench, when second locating piece mating holes and torque wrench match, contained angle between wrench body and the torque wrench has multiple choice.

Preferably, torque wrench includes spanner body and spanner locating piece, spanner locating piece fixed connection is in the one end of spanner body, the spanner locating piece can cooperate with second locating piece mating holes, cooperate through the mode of cup jointing between spanner locating piece and the second locating piece mating holes.

Preferably, the right side of the positioning block is connected with the first positioning block matching hole in a sleeved mode, and the left side of the positioning block is connected with the torque wrench sleeve in a sleeved mode.

Further preferably, the first positioning block matching hole has the same structure as the second positioning block matching hole, the first positioning block matching hole is a rectangular hole, the positioning block is a rectangular block capable of being matched with the first positioning block matching hole, and the wrench positioning block is a rectangular block capable of being matched with the second positioning block matching hole.

Preferably, the torque wrench socket includes a left socket portion and a right positioning block fitting portion, the positioning block fitting portion is provided with a through hole towards the left, and the positioning block can be sleeved in the through hole.

Preferably, the set value displayed on the torque wrench is T1 in n.m; the specific torque value required by the fastener in the drawing is T2 with the unit of N.m; the actual length of the torque wrench is L, and the unit is m; the length of the wrench added by the adapter is A, and the unit is m; the relationship between T1, T2, L, and A is then: t1 ═ T2 × L/(L + a).

Compared with the prior art, the method has the following beneficial effects:

1. according to the switching tool of the torque wrench for the reciprocating compressor fastener, the matching hole of the positioning block at the end of the switching tool is connected with the torque wrench, so that the change of angles is realized, the original fastener which cannot be contacted is contacted, and the problems that the individual fastener of the conventional reciprocating compressor cannot be fastened and cannot reach the required torque value are perfectly solved;

2. the switching tool of the torque wrench for the reciprocating compressor fastener is composed of a wrench body, a positioning block and a sleeve, and is simple in structure, easy to machine, few in required parts and simple to install;

3. through adopting the connected mode that cup joints between each subassembly, easy dismounting in the middle of the use.

Drawings

To more intuitively illustrate the prior art and the present application, several exemplary drawings are given below. It should be understood that the specific shapes, configurations and illustrations in the drawings are not to be construed as limiting, in general, the practice of the present application; for example, it is within the ability of those skilled in the art to make routine adjustments or further optimizations based on the technical concepts disclosed in the present application and the exemplary drawings, for the increase/decrease/attribution of certain units (components), specific shapes, positional relationships, connection manners, dimensional ratios, and the like.

FIG. 1 is a schematic view of a partial cross-sectional view of an adapter tool for a torque wrench for a reciprocating compressor fastener according to an embodiment of the present application;

FIG. 2 is a schematic view illustrating a mating situation of an adapter tool of a torque wrench and the torque wrench for a fastener of the reciprocating compressor shown in FIG. 1;

1. a wrench body; 11. a first locating block matching hole; 12. a second positioning block mating hole;

2. positioning blocks;

3. a torque wrench socket.

Detailed Description

The present application will be described in further detail below with reference to specific embodiments thereof, with reference to the accompanying drawings.

In the description of the present application: "plurality" means two or more unless otherwise specified. The terms "first", "second", "third", and the like in this application are intended to distinguish one referenced item from another without having a special meaning in technical connotation (e.g., should not be construed as emphasizing a degree or order of importance, etc.). The terms "comprising," "including," "having," and the like, are intended to be inclusive and mean "not limited to" (some elements, components, materials, steps, etc.).

In the present application, terms such as "upper", "lower", "left", "right", "middle", and the like are generally used for easy visual understanding with reference to the drawings, and are not intended to absolutely limit the positional relationship in an actual product. Changes in these relative positional relationships are also considered to be within the scope of the present disclosure without departing from the technical concepts disclosed in the present disclosure.

Referring to fig. 1 and 2, an embodiment of the present application provides a switching tool of a torque wrench for a fastener of a reciprocating compressor, including a wrench body 1, a positioning block 2 and a torque wrench socket 3, wherein an upper end of the wrench body 1 is provided with a first positioning block mating hole 11, a lower end of the wrench body 1 is provided with a second positioning block mating hole 12, a right side of the positioning block 2 is disposed in the first positioning block mating hole 11, a left side of the positioning block 2 is mated with the torque wrench socket 3, a left side of the torque wrench socket 3 is provided with a fastener mating groove, the fastener mating groove is mated with a fastener, so as to facilitate screwing the fastener, the second positioning block mating hole 12 at the lower end of the wrench body 1 is mated with the torque wrench, and when the second positioning block mating hole 12 is mated with the torque wrench, an included angle between the wrench body 1 and the torque wrench has multiple choices;

the torque wrench comprises a wrench body and a wrench positioning block, wherein the wrench positioning block is fixedly connected to one end of the wrench body, the wrench positioning block can be matched with the second positioning block matching hole 12, and the wrench positioning block is matched with the second positioning block matching hole 12 in a sleeving manner;

in general, for the convenience of assembly and disassembly of the assembly, the right side of the positioning block 2 is connected with the first positioning block matching hole 11 in a sleeving manner, and the left side of the positioning block 2 is connected with the torque wrench socket 3 in a sleeving manner;

in some embodiments, the first positioning block fitting hole 11 and the second positioning block fitting hole 12 have the same structure, the first positioning block fitting hole 11 is a rectangular hole, correspondingly, the positioning block 2 is a rectangular block capable of being matched with the first positioning block fitting hole 11, and the wrench positioning block is a rectangular block capable of being matched with the second positioning block fitting hole 12;

the torque wrench sleeve 3 comprises a sleeve part on the left side and a positioning block matching part on the right side, a through hole is formed in the positioning block matching part towards the left side, and the positioning block 2 can be sleeved in the through hole;

in the actual fastening process, some fasteners which are complex in structure and not easy to access are often encountered, and the fasteners cannot be fastened by a conventional torque wrench, so that the adapter tool related to the application can be utilized, the operation method is to connect the second positioning block matching hole 12 at the lower end of the adapter tool with the torque wrench, so as to realize angle change and contact the fasteners which cannot be contacted originally, it is noted that the set value on the torque wrench needs to be understood again, the set value is different from the force applied on the fasteners, and the 90-degree angle is not formed between the adapter tool and the torque wrench. The torque value required by the fastener is recorded as T2, the torque wrench set value is recorded as T1, and the specific formula is as follows:

T1＝T2×L/(L+A)；

in the above formula:

t1 — set point displayed on torque wrench, unit n.m;

t2-the specific torque value required for the fastener in the drawing, in N.m;

l-actual length of torque wrench, in m, as shown in FIG. 2;

a-increased wrench length of the adapter, in m, as shown in FIG. 2;

after a sleeve at the upper end of the adapter is connected with a fastener, the lower end of the adapter is connected with a torque wrench, after an angle is selected, the torque wrench is adjusted, a required torque value is converted according to the above formula, and then fastening work is started according to the operation requirement of the torque wrench;

the application range is as follows:

the reciprocating compressor needs a fastener to be connected everywhere, but the required positions are different, so that the positions which are inconvenient to screw are often available, for example, the packing in the cylinder needs to be connected with the packing through a stud, but the stud needs to penetrate through the cylinder and the middle body, a conventionally used wrench cannot be fastened, and at the moment, the wrench switching tool is needed to fasten the stud which is difficult to access;

in the field of reciprocating compressors, a torque wrench belongs to a conventional installation tool, the operation is simple, most fasteners can be fastened by using the torque wrench, but attention needs to be paid to the following steps: the required torque value of each fastener is required to be met and the fastening is carried out according to the method of the specification. Because the parts are more and the structure is complex, parts which are extremely difficult to access can be generated, and the conventional torque wrench cannot be operated, the fastening work can be completed by the aid of the adapter tool of the torque wrench for the reciprocating compressor fastening piece related to the embodiment of the application;

the problem that the fastening cannot be realized is solved through a simple structure, and the working efficiency is greatly improved;

in some cases, the handle of the wrench may be hammered until the fastener is no longer rotating, but this method does not allow for the knowledge of the torque value and is strictly prohibited.

All the technical features of the above embodiments can be arbitrarily combined (as long as there is no contradiction between the combinations of the technical features), and for brevity of description, all the possible combinations of the technical features in the above embodiments are not described; these examples, which are not explicitly described, should be considered to be within the scope of the present description.

The present application has been described in considerable detail with reference to certain embodiments and examples thereof. It should be understood that several conventional adaptations or further innovations of these specific embodiments may also be made based on the technical idea of the present application; however, such conventional modifications and further innovations may also fall within the scope of the claims of the present application as long as they do not depart from the technical idea of the present application.

Claims (6)

1. The switching tool of the torque wrench for the reciprocating compressor fastener is characterized in that a wrench body (1), a positioning block (2) and a torque wrench sleeve (3), wherein a first positioning block matching hole (11) which is communicated with the upper end of the wrench body (1) is formed in the upper end of the wrench body, a second positioning block matching hole (12) which is communicated with the lower end of the wrench body (1) is formed in the lower end of the wrench body (1), the right side of the positioning block (2) is arranged in the first positioning block matching hole (11), the left side of the positioning block (2) is matched with the torque wrench sleeve (3), a fastener matching groove is formed in the left side of the torque wrench sleeve (3) and is matched with a fastener, the second positioning block matching hole (12) in the lower end of the wrench body (1) is matched with the torque wrench, and the second positioning block matching hole (12) is matched with the torque wrench, the included angle between the wrench body (1) and the torque wrench has multiple choices.

2. The adapter of the torque wrench for the fastener of the reciprocating compressor according to claim 1, wherein the torque wrench comprises a wrench body and a wrench positioning block, the wrench positioning block is fixedly connected to one end of the wrench body, the wrench positioning block can be matched with the second positioning block matching hole (12), and the wrench positioning block is matched with the second positioning block matching hole (12) in a sleeving manner.

3. The adapter of torque wrench for fastener of reciprocating compressor according to claim 1, wherein the right side of the positioning block (2) is connected with the first positioning block matching hole (11) in a sleeved manner, and the left side of the positioning block (2) is connected with the torque wrench socket (3) in a sleeved manner.

4. The adapter of torque wrench for fastener of reciprocating compressor according to claim 2, wherein the first positioning block fitting hole (11) and the second positioning block fitting hole (12) have the same structure, the first positioning block fitting hole (11) is a rectangular hole, the positioning block (2) is a rectangular block capable of fitting with the first positioning block fitting hole (11), and the wrench positioning block is a rectangular block capable of fitting with the second positioning block fitting hole (12).

5. The adapter of the torque wrench for the reciprocating compressor fastener according to claim 1, wherein the torque wrench socket (3) comprises a left socket portion and a right locating block fitting portion, the locating block fitting portion is provided with a through hole at the left side, and the locating block (2) can be sleeved in the through hole.

6. The adapter of torque wrench for reciprocating compressor fastener according to claim 1, wherein the setting value displayed on the torque wrench is T1 in n.m; the specific torque value required by the fastener in the drawing is T2 with the unit of N.m; the actual length of the torque wrench is L, and the unit is m; the length of the wrench added by the adapter is A, and the unit is m; the relationship between T1, T2, L, and A is then: t1 ═ T2 × L/(L + a).

Images