CN205521091U - A bolt removal tool - Google Patents

Abstract

The utility model discloses a bolt disassembly and assembly tool, which belongs to the technical field of disassembly and assembly tools. The bolt removal tool includes: a telescopic connecting rod, a fixed ring, a sleeve matching the bolt to be disassembled, a handle, and a fixed bolt; the front end of the telescopic connecting rod is detachably connected to the fixing ring, and the telescopic connecting rod The rear end of the handle is detachably connected with the handle; the sleeve is set in the fixed ring, and the walls of the fixed ring and the sleeve are provided with concentric threaded through holes, and the fixing bolts pass through the threaded through holes to fix the sleeve on the fixed ring. inside the ring. The assembly and disassembly tool provided by the embodiment of the utility model can save time and labor in the assembly and disassembly process of the bolt, is safe and reliable, and has a simple structure, is easy to operate, and is beneficial to popularization.

Description

A bolt removal tool

technical field

The utility model relates to the technical field of assembly and disassembly tools, in particular to a bolt assembly and disassembly tool.

Background technique

Oilfield equipment mostly uses nuts and bolts with threaded connections to fix the components. For example, the plunger pump is equipped with a motor of about 132KW. When it is necessary to disassemble the motor or adjust the tightness of the belt on it, The anchor bolts need to be disassembled, and the nuts matched with the anchor bolts, such as hexagonal nuts, are mostly arranged in rectangular channel steels and are difficult to disassemble. Therefore, it is necessary to provide a bolt disassembly tool.

In the prior art, a wrench tool is mainly used to disassemble bolts, especially the above-mentioned anchor bolts. For example, the wrench tool may be a socket wrench, a ring wrench, an open-end wrench, and the like.

The designer finds that the prior art has at least the following problems:

Since the hexagonal nuts matched with the anchor bolts are located in the rectangular channel steel, and the height of the socket wrench is usually greater than that of the rectangular channel steel, the force arm of the ring wrench and the open-end wrench are short, and these tools can be applied in the rectangular channel steel. The torque is small, which leads to time-consuming and labor-intensive operation, which increases the labor intensity of the operator. At the same time, it is easy to lose control and slip due to force during operation, which is highly dangerous.

Utility model content

In order to solve the problems of the prior art, the embodiment of the utility model provides a safe and reliable bolt dismounting tool which saves time and effort. Described technical scheme is as follows:

A bolt dismounting tool, said tool comprising: a telescopic connecting rod, a fixing ring, a sleeve matched with the bolt to be disassembled, a handle, and a fixing bolt;

The front end of the telescopic link is detachably connected to the fixed ring, and the rear end of the telescopic link is detachably connected to the handle;

The sleeve is set in the fixed ring, and the wall of the fixed ring and the sleeve is provided with a concentric threaded through hole, and the fixing bolt passes through the threaded through hole to connect the The sleeve is fixed in the fixed ring.

Specifically, preferably, the tool further includes a flat-head crowbar, and the flat-head crowbar is connected to the rear end of the handle.

Specifically, preferably, the flat-head crowbar is connected to the rear end of the handle by welding.

Specifically, preferably, the fixed ring includes: a ring portion and a connecting portion; a front end of the connecting portion is connected to the ring portion, and a rear end is detachably connected to the telescopic link.

Specifically, preferably, the rear end of the connecting part is provided with a first external thread, and the front end of the telescopic connecting rod is provided with a first internal thread matching the first external thread, and the connecting part The rear end is threadedly connected with the front end of the telescopic connecting rod.

Specifically, preferably, two threaded through holes are provided on opposite side walls of the annular portion, and the number of the fixing bolts is two.

Specifically, preferably, the sleeve is an inner hexagonal sleeve.

Specifically, preferably, the handle has a diameter of 30-40 mm and a length of 80-100 mm;

The telescopic connecting rod has a diameter of 12-28 mm and a length of 200-300 mm;

The axial length of the connecting part is 27-60 mm, the inner diameter of the annular part is 50-53 mm, and the outer diameter is 70-73 mm;

The inner diameter of the inner hexagonal sleeve is 24-41 mm, and the outer diameter is 48-51 mm.

The beneficial effects brought by the technical solution provided by the embodiment of the utility model are:

The utility model provides a bolt dismounting tool. By using a telescopic connecting rod, the length of the connecting rod can be adjusted according to the actual disassembly or installation environment, so as to ensure that the sleeve at the front end cooperates with the bolt to be disassembled. Appropriate and sufficiently large torque can be obtained, thereby facilitating the disassembly and assembly of the bolts, which is time-saving, labor-saving, safe and reliable. In addition, in the embodiment of the present utility model, by detachably setting the fixed ring and the handle covered with the sleeve at both ends of the telescopic connecting rod, on the one hand, the fixed ring and the handle can be adaptively replaced according to the actual size of the bolt to be removed. The sleeve inside improves the adaptability of the bolt removal tool. On the other hand, different handles can be replaced in time to cope with different operators. It can be seen that the disassembly and assembly tool provided by the embodiment of the utility model can save time and effort in the disassembly and assembly process of the bolt, and is safe and reliable, and its structure is simple, easy to operate, and conducive to popularization.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a structural schematic diagram of a bolt removal tool provided by an embodiment of the present invention.

Wherein, the reference signs represent respectively:

1 telescopic link,

2 fixing rings,

3 sleeves,

4 handles,

5 fixing bolts,

6 Crowbars with flat ends.

detailed description

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

The embodiment of the utility model provides a bolt dismounting tool, as shown in Figure 1, the bolt dismounting tool includes: a telescopic connecting rod 1, a fixed ring 2, a sleeve 3 matched with the bolt to be disassembled , handle 4, fixed bolt 5; the front end of the telescopic connecting rod 1 is detachably connected to the fixed ring 2, and the rear end of the telescopic connecting rod 1 is detachably connected to the handle 4; the sleeve 3 is set in the fixed ring 2, The walls of the fixing ring 2 and the sleeve 3 are provided with concentric threaded through holes, and the fixing bolts 5 pass through the threaded through holes to fix the sleeve 3 in the fixing ring 2 .

The bolt removal tool provided by the embodiment of the utility model can adjust the length of the connecting rod according to the actual disassembly or installation environment by using the telescopic connecting rod 1, so as to ensure that the sleeve 3 at its front end cooperates with the bolt to be disassembled Appropriate and large enough torque can be obtained at the same time, so that the disassembly and assembly of bolts is more time-saving, labor-saving, safe and reliable. In addition, the embodiment of the present utility model detachably arranges the fixed ring 2 and the handle 4 covered with the sleeve 3 at both ends of the telescopic connecting rod 1, on the one hand, it can be adaptively replaced according to the actual size of the bolt to be disassembled Fixing the ring 2 and the sleeve 3 therein improves the adaptability of the bolt dismounting tool, and on the other hand, different handles 4 can be replaced in time to cope with different operators. It can be seen that the assembly and disassembly tool provided by the embodiment of the utility model can save time and labor in the assembly and disassembly process of the bolt, is safe and reliable, and its structure is simple, easy to operate, and conducive to popularization.

Among them, the telescopic connecting rod 1 has the function of adjusting its length. For example, the telescopic connecting rod 1 can be two-section, three-section and other cylindrical through-rods with different diameters, which are connected by nesting steel clips. The length is locked by a certain friction force, and the length of the telescopic connecting rod 1 can be adjusted according to the actual disassembly environment during use, which meets the needs of different environments while increasing the arm of force.

Further, the bolt dismounting tool provided by the embodiment of the present invention also includes a flat-head crowbar 6, which is connected to the rear end of the handle 4, and the flat-head crowbar 6 is connected to the handle 4 by welding. The rear end is connected, and the connection by welding can make the connection have high strength, and it is not easy to disconnect from the handle 4 when the flat-head crowbar 6 is used, reducing safety risks. By setting the flat head crowbar 6 at the rear end of the handle 4, it is convenient to pry out some rusty bolts adhered to the corresponding screw holes, which increases the flexibility of use of the bolt dismounting tool provided by the embodiment of the present invention.

Specifically, in the embodiment of the present utility model, the fixed ring 2 includes: a ring portion and a connecting portion; the front end of the connecting portion is connected to the ring portion, and the rear end is detachably connected to the telescopic connecting rod 1 . The structure of the fixed ring 2 is arranged in this way, which is convenient for the sleeve 3 to be fixed in the ring part, and at the same time, the telescopic connecting rod 1 is connected with the connecting part, which is more conducive to the connection between the fixed ring 2, the telescopic connecting rod 1 and the sleeve 3. Mate connection.

In more detail, the rear end of the connecting part is provided with a first external thread, and the cavity at the front end of the telescopic connecting rod 1 is provided with a first internal thread matching the first external thread, and the rear end of the connecting part is connected with the telescopic The front end of connecting rod 1 is threaded. This thread fit is convenient for the disassembly and assembly of the fixed ring 2 and the telescopic connecting rod 1, and the fixed ring 2 of different sizes or shapes can be selected to cooperate with the telescopic connecting rod 1 according to the needs of different environments.

Specifically, two threaded through holes are provided on the opposite side walls of the circular portion, and the number of fixing bolts 5 is two. The diameter of the two threaded through holes can be 6-8 mm, for example, 6 mm, 7 mm, 8 mm, etc. Correspondingly, the diameter of the two fixing bolts 5 can be 5-7 mm, such as 5 mm, 6 mm, 7 mm, etc., and the two fixing bolts 5 can pass through the thread on the ring part. hole and further threaded with the threaded through hole arranged in the wall of the sleeve 3, thereby the sleeve 3 is fixed in the fixed ring 2, and the detachable fixing bolt 5 is used to replace the sleeve 3, which expands the scope of the utility model. The scope of use of bolt removal tools.

It can be understood that the sleeve 3 provided by the embodiment of the present invention is preferably an inner hexagonal sleeve 3 to match with a common hexagonal nut on a bolt head. The material of the sleeve 3 can be at least one of chrome-molybdenum steel, chrome-vanadium steel, and No. 45 steel, preferably chrome-molybdenum steel. Among them, chrome-molybdenum steel is easy to process and has good impact resistance, which improves the service life of the bolt dismounting tool provided by the utility model.

Based on the dismounting of the anchor bolts on the motor, according to the conventional size of the rectangular channel steel, the embodiment of the utility model preferably limits the diameter of the handle 4 to 30-40 millimeters, and the length is limited to 80-100 millimeters, such as its diameter It can be 32 mm, 34 mm, 36 mm, 38 mm, 40 mm, etc., and its length can be 80 mm, 85 mm, 90 mm, 95 mm, 100 mm, etc. The different sizes of the handle 4 can meet the needs of different workers, which increases the comfort of the bolt dismounting tool provided by the utility model. In more detail, the handle 4 can be made of No. 10 steel or rubber material, both of which are easy to form and can be designed in different shapes. For example, the shape can be designed to match the width of four fingers. Or the surface of the handle 4 is provided with patterns such as triangles, circles, squares, etc., and the design of different shapes can increase the friction between the hand and the handle 4 to avoid slipping.

At the same time, the front end of the handle 4 is provided with a second internal thread, and the diameter can be 20-30 mm, such as 22 mm, 25 mm, 26 mm, 28 mm, 30 mm, etc., and the telescopic connecting rod 1 rear end is provided with The second external thread, the diameter of the second external thread can be 16-26 mm, such as 16 mm, 18 mm, 20 mm, 22 mm, 24 mm, 26 mm, etc. The internal thread is matched to facilitate the disassembly and assembly of the telescopic connecting rod 1 and the handle 4, and different handles 4 can be selected to cooperate with the telescopic connecting rod 1 of different lengths to meet different needs.

Further, the diameter of the telescopic connecting rod 1 is preferably 12-28 mm, and the length is preferably 200-300 mm. For example, its diameter can be 12 mm, 15 mm, 18 mm, 20 mm, 24 mm, 27 mm, etc. is 20mm, and the length can be 200mm, 230mm, 260mm, 290mm, 300mm, etc. The diameter of the first internal thread provided on the front end of the telescopic connecting rod 1 is 10-26 millimeters, such as 12 millimeters, 14 millimeters, 16 millimeters, 18 millimeters, 20 millimeters, etc., and the rear end of the connecting part of the fixed ring 2 is set Some first external threads have a diameter of 8 to 24 mm, such as 8 mm, 12 mm, 16 mm, 20 mm, 24 mm, etc., which can be threaded with the first internal thread of the telescopic connecting rod 1 to facilitate the fixing of the ring 2 Disassembly and assembly of telescopic connecting rod 1.

Wherein, the axial length of the connecting part can be 27-60 mm; the inner diameter of the annular part can be 50-53 mm, and the outer diameter can be 70-73 mm, for example, the axial length of the connecting part can be 30 mm, 35 mm , 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, etc., the inner diameter of the ring part can be 50 mm, 51 mm, 52 mm, 53 mm, etc., and the outer diameter is 70 mm, 71 mm, 72 mm, 73 mm mm etc. The purpose of setting the connecting part is to make the ring part and the connecting rod fit and connect, so as to meet the structural design of the bolt dismounting tool provided by the embodiment of the present invention.

Wherein, the inner diameter of the inner hexagon socket 3 can be 24-41 mm, and the outer diameter can be 48-51 mm, for example, the inner diameter is 25 mm, 30 mm, 34 mm, 40 mm, 41 mm, etc., and the outer diameter is 48 mm mm, 49mm, 50mm, 51mm, etc. The outer diameter of the inner hexagonal sleeve 3 is 1 to 2 millimeters smaller than the inner diameter of the annular portion, so that the inner hexagonal sleeve 3 is conveniently placed inside the annular portion, and then the fixing bolts 5 are used to fix the two.

Based on the above, when the bolt dismounting tool provided by the embodiment of the present invention disassembles the bolt, it is carried out in the following manner: according to the type of the actual bolt and nut to be disassembled, select the corresponding inner hexagonal sleeve 3, and The fixed ring 2 matched with the hexagonal sleeve 3 uses the fixing bolt 5 to fix the inner hexagonal sleeve 3 inside the fixed ring 2, then selects the appropriate telescopic connecting rod 1 and handle 4, and connects the telescopic connecting rod 1 The front end of the front end is threaded with the connecting portion of the fixed ring 2, and the rear end of the telescopic connecting rod 1 is threaded with the handle 4. Wherein, the rear end of the handle 4 is welded with a flat head crowbar 6 .

For example, when disassembling the bolts on the 3175Pa-A3 plunger pump motor, adjust the length of the telescopic connecting rod 1 according to the needs of the actual environment, then insert the inner hexagon socket 3 into the nut to be disassembled, and hold the handle 4. Pull hard and twist the handle 4 and telescopic connecting rod 1 along the thread direction, so that the bolt dismounting tool provided by the embodiment of the utility model can generate enough torque, so that the bolt dismounting process can save time, effort, safety and reliability .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (9)

1. a bolt disassembly instrument, it is characterised in that described instrument includes: sleeve that telescopic connecting rod, clamping rings match with bolt to be removed, handle, fixing bolt；

The front end of described telescopic connecting rod removably connects with described clamping rings, and the rear end of described telescopic connecting rod removably connects with described handle；

Described sleeve set, in described clamping rings, the wall of described clamping rings and described sleeve is provided with concentric tapped through hole, and described fixing bolt passes described tapped through hole, to be fixed in described clamping rings by described sleeve.

Instrument the most according to claim 1, it is characterised in that described instrument also includes that homalocephalus crowbar, described homalocephalus crowbar are connected with the rear end of described handle.

Instrument the most according to claim 2, it is characterised in that by the way of welding, described homalocephalus crowbar is connected with the rear end of described handle.

Instrument the most according to claim 1, it is characterised in that described clamping rings includes: annular portion and connecting portion；The front end of described connecting portion connects described annular portion, and rear end removably connects with described telescopic connecting rod.

Instrument the most according to claim 4, it is characterized in that, the rear end of described connecting portion is provided with the first external screw thread, and the front end of described telescopic connecting rod is provided with the first female thread matched with described first external screw thread, and the rear end of described connecting portion is connected with the nose threads of described telescopic connecting rod.

Instrument the most according to claim 4, it is characterised in that be provided with 2 described tapped through holes on the sidewall that described annular portion is relative, and the number of described fixing bolt is 2.

Instrument the most according to claim 1, it is characterised in that described sleeve is interior Hexagonal jacket.

Instrument the most according to claim 4, it is characterised in that a diameter of 30～40 millimeters of described handle, a length of 80～100 millimeters；

A diameter of 12～28 millimeters of described telescopic connecting rod, a length of 200～300 millimeters；

The axial length of described connecting portion is 27～60 millimeters, and the internal diameter of described annular portion is 50～53 millimeters, and external diameter is 70～73 millimeters.

Instrument the most according to claim 7, it is characterised in that the internal diameter of described interior Hexagonal jacket is 24～41 millimeters, external diameter is 48～51 millimeters.