CN211589961U

CN211589961U - Four-claw type belt pulley dismounting device

Info

Publication number: CN211589961U
Application number: CN202020119574.1U
Authority: CN
Inventors: 许庆峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-09-29
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses a four-claw belt pulley dismounting device, which comprises a claw assembly, a pull rod assembly, a stop block assembly and a mandril; the jaw assembly comprises a first jaw, a second jaw, a third jaw and a fourth jaw, and the first jaw is hinged with the fourth jaw end to end in sequence; the pull rod assembly comprises a first pull rod, a second pull rod, a third pull rod and a fourth pull rod, one end of the first pull rod is connected with the first jaw, one end of the second pull rod is connected with the second jaw, one end of the third pull rod is connected with the third jaw, and one end of the fourth pull rod is connected with the fourth jaw; the stop block assembly comprises a first stop block and a second stop block, the first stop block is connected with the other ends of the first pull rod and the third pull rod, and the second stop block is connected with the other ends of the second pull rod and the fourth pull rod; the ejector rod can pass through the first stop block and the second stop block in a rotating mode, the ejector rod is used for abutting against the belt pulley, and the belt pulley is detached by rotating the ejector rod. The utility model discloses simple structure, convenient to use, labour saving and time saving.

Description

Four-claw type belt pulley dismounting device

Technical Field

The utility model relates to a dismantle belt pulley technical field, in particular to four-jaw formula belt pulley dismounting device.

Background

When changing motor pulley, need dismantle original motor pulley get off, the tradition for technical staff strikes motor pulley with the wedge and the cooperation of hammer, makes motor pulley and motor bearing not hard up, perhaps pries motor pulley from motor bearing with the crowbar, however this two kinds of modes cause motor pulley and motor bearing's damage very easily, and is also unsafe to the operator. In the prior art, a motor belt pulley is usually disassembled by using a three-jaw puller, the three-jaw puller mainly comprises a jackscrew and three pulling jaws, when the three-jaw puller is used, the jackscrew is jacked at the central position of a motor bearing, the pulling jaws are clamped at the edge of the motor belt pulley, the jackscrew is rotated to enable the motor belt pulley to slide along the axial direction, so that the motor belt pulley is disassembled from the motor bearing, however, when the motor belt pulley is disassembled by using the three-jaw puller, the situation that a belt pulley groove is pulled to be broken and damaged is easy to occur due to the small stress area of the motor belt pulley, and the central position is automatically positioned, so that the central position is not adjustable, and the three-jaw puller is.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, the utility model aims to provide a four-jaw formula belt pulley dismounting device, its simple structure, convenient to use, labour saving and time saving.

In order to achieve the purpose, the embodiment of the utility model provides a four-claw belt pulley dismounting device, which comprises a claw assembly, a pull rod assembly, a stop block assembly and a push rod;

the clamping jaw assembly comprises a first clamping jaw, a second clamping jaw, a third clamping jaw and a fourth clamping jaw, one end of the first clamping jaw is hinged with one end of the second clamping jaw, the other end of the second clamping jaw is hinged with one end of the third clamping jaw, the other end of the third clamping jaw is hinged with one end of the fourth clamping jaw, and the other end of the fourth clamping jaw is hinged with the other end of the first clamping jaw;

the pull rod assembly comprises a first pull rod, a second pull rod, a third pull rod and a fourth pull rod, one end of the first pull rod is connected with the first jaw, one end of the second pull rod is connected with the second jaw, one end of the third pull rod is connected with the third jaw, and one end of the fourth pull rod is connected with the fourth jaw;

the stop block assembly comprises a first stop block and a second stop block, the first stop block is connected with the other ends of the first pull rod and the third pull rod, and the second stop block is connected with the other ends of the second pull rod and the fourth pull rod;

the ejector rod can pass through the first stop block and the second stop block in a rotating mode, the ejector rod is used for abutting against the belt pulley, and the belt pulley is detached by rotating the ejector rod.

According to the utility model discloses a four-jaw formula belt pulley dismounting device, when dismantling the belt pulley, with the belt pulley card in the jack catch subassembly, adjust the position of first only piece and second only piece after that, rotatory ejector pin makes the ejector pin support and leans on the belt pulley, continues rotatory ejector pin for the belt pulley axial is removed, accomplishes the dismantlement of belt pulley, consequently, the utility model discloses simple structure, convenient to use, labour saving and time saving.

In addition, according to the utility model discloses a four-jaw formula belt pulley dismounting device that above-mentioned embodiment provided can also have following additional technical characterstic:

furthermore, the first clamping jaw and the third clamping jaw are positioned on the same plane, and the second clamping jaw and the fourth clamping jaw are positioned on the other plane.

Furthermore, the first jaw, the second jaw, the third jaw and the fourth jaw are hinged through bolts.

Furthermore, the first clamping jaw, the second clamping jaw, the third clamping jaw and the fourth clamping jaw are provided with adjusting long holes, and the bolt penetrates through the adjusting long holes to fix the clamping jaw assembly.

Furthermore, adjusting holes are formed in the first stop block and the second stop block, threads are formed in the first pull rod, the second pull rod, the third pull rod and the fourth pull rod, and the first pull rod, the second pull rod, the third pull rod and the fourth pull rod penetrate through the adjusting holes and are in threaded connection with the first stop block and the second stop block.

Furthermore, threaded holes are formed in the center positions of the first stop block and the second stop block, and the ejector rod penetrates through the threaded holes to be in threaded connection with the first stop block and the second stop block.

Further, the end parts of the ejector rod, the first pull rod, the second pull rod, the third pull rod and the fourth pull rod are provided with anti-falling nuts.

Drawings

Fig. 1 is a schematic structural diagram of a four-jaw belt pulley dismounting device according to an embodiment of the present invention.

Description of the reference symbols

Jaw assembly 1 first jaw 11

Second jaw 12 and third jaw 13

Fourth jaw 14 drawbar assembly 2

First pull rod 21 and second pull rod 22

Third pull rod 23 and fourth pull rod 24

Stop assembly 3 first stop 31

Second stop 32 ejector rod 4

Bolt 5 adjusting slot hole 6

Adjusting hole 7 and threaded hole 8

And a nut 9.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, a four-jaw belt pulley dismounting device according to an embodiment of the present invention includes a jaw assembly 1, a pull rod assembly 2, a stop block assembly 3, and a carrier rod 4; the jaw assembly 1 comprises a first jaw 11, a second jaw 12, a third jaw 13 and a fourth jaw 14, one end of the first jaw 11 is hinged with one end of the second jaw 12, the other end of the second jaw 12 is hinged with one end of the third jaw 13, the other end of the third jaw 13 is hinged with one end of the fourth jaw 14, and the other end of the fourth jaw 14 is hinged with the other end of the first jaw 11; the pull rod assembly 2 comprises a first pull rod 21, a second pull rod 22, a third pull rod 23 and a fourth pull rod 24, one end of the first pull rod 21 is connected with the first jaw 11, one end of the second pull rod 22 is connected with the second jaw 12, one end of the third pull rod 23 is connected with the third jaw 13, and one end of the fourth pull rod 24 is connected with the fourth jaw 14; the stop block assembly 3 comprises a first stop block 31 and a second stop block 32, the first stop block 31 is connected with the other ends of the first pull rod 21 and the third pull rod 23, and the second stop block 32 is connected with the other ends of the second pull rod 22 and the fourth pull rod 24; the rod 4 is rotatably inserted through the first stopper 31 and the second stopper 32, the rod 4 abuts against the pulley, and the pulley is removed by rotating the rod 4.

When dismantling the belt pulley, block the belt pulley in jack catch subassembly 1, adjust the position of first only piece 31 and second only piece 32 after that, rotatory ejector pin 4 makes ejector pin 4 support and leans on the belt pulley, continues rotatory ejector pin 4 for the belt pulley axial is removed, accomplishes the dismantlement of belt pulley, consequently, the utility model discloses simple structure, convenient to use, labour saving and time saving.

In some examples, the first jaw 11 and the third jaw 13 are located on the same plane, and the second jaw 12 and the fourth jaw 14 are located on another plane, for example, the first jaw 11 and the third jaw 13 are located above the second jaw 12 and the fourth jaw 14, when the belt pulley is dismounted, the first jaw 11 and the third jaw 13 may abut against one side of the belt pulley, and the second jaw 12 and the fourth jaw 14 may abut against the other side of the belt pulley, so as to conveniently clamp the belt pulley in the jaw assembly 1, and facilitate dismounting of the belt pulley.

In some examples, the hinged relationship between the first jaw 11, the second jaw 12, the third jaw 13, and the fourth jaw 14 is such that the bolts 5 are hinged, rotating the bolts 5 to clamp the pulley tightly within the jaw assembly 1.

In some examples, the first jaw 11, the second jaw 12, the third jaw 13 and the fourth jaw 14 are provided with an adjustment long hole 6, and the bolt 5 passes through the adjustment long hole 6 to fix the jaw assembly 1. Because first jack catch 11 one end is articulated with 12 one end of second jack catch, the 12 other ends of second jack catch are articulated with 13 one end of third jack catch, the 13 other ends of third jack catch are articulated with 14 one end of fourth jack catch, the 14 other ends of fourth jack catch are articulated with 11 other ends of first jack catch, and be provided with on first jack catch 11, second jack catch 12, third jack catch 13 and the fourth jack catch 14 and adjust slot hole 6 for the jack catch space size that is enclosed by jack catch subassembly 1 is adjustable, in order to adapt to the different belt pulleys of big or small model, of course, the utility model discloses four-jaw formula belt pulley dismounting device is also not limited to dismantling the belt pulley, also can dismantle other work pieces, like wheel class, dish class work piece.

In some examples, the first stopper 31 and the second stopper 32 are provided with an adjusting hole 7, the first pull rod 21, the second pull rod 22, the third pull rod 23 and the fourth pull rod 24 are provided with threads, and the first pull rod 21, the second pull rod 22, the third pull rod 23 and the fourth pull rod 24 pass through the adjusting hole 7 and are in threaded connection with the first stopper 31 and the second stopper 32, so that the first stopper 31 and the second stopper 32 can be adjusted conveniently, and the belt pulley can be clamped in the jaw assembly 1 conveniently.

In some examples, the first stop 31 and the second stop 32 are provided with a threaded hole 8 at the center, the push rod 4 passes through the threaded hole 8 and is in threaded connection with the first stop 31 and the second stop 32, when the belt pulley is disassembled, the first stop 31 and the second stop 32 can be fixed, the push rod 4 is rotated to enable the push rod 4 to abut against the belt pulley, the push rod 4 is continuously rotated to axially remove the belt pulley, and the disassembly of the belt pulley is completed. In order to facilitate the rotation of the jack 4, a rotation knob (not shown) may be provided at an end of the jack 4.

In some examples, the end portions of the top rod 4, the first pull rod 21, the second pull rod 22, the third pull rod 23 and the fourth pull rod 24 are provided with anti-falling nuts 9, and after the nuts 9 are installed, the first stop 31 and the second stop 32 can be effectively prevented from being separated.

To sum up, when current three-jaw draws horse to dismantle motor pulley, the lifting surface area is less and easily appear drawing collapse, draw the pulley groove situation of hindering, and the utility model discloses four-jaw formula belt pulley dismounting device's jack catch space size is adjustable, conveniently transfers to best atress area of contact and effectively reduces the contact point pulling force to furthest protects the pulley groove, and its practical application effect is fine, does not basically have the damage.

In addition, three-jaw draws horse to dismantle it puts for automatic positioning central point for central point puts unadjustable, is not suitable for eccentric wheel or other special-shaped workpiece, and the utility model discloses four-jaw formula belt pulley dismounting device's jack catch space size is adjustable, thereby conveniently dismantles eccentric wheel or other special-shaped workpiece.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a four claw formula belt pulley dismounting device which characterized in that: the clamping jaw assembly comprises a clamping jaw assembly, a pull rod assembly, a stop block assembly and a push rod;

2. The four jaw pulley removal apparatus of claim 1, wherein: the first clamping jaw and the third clamping jaw are positioned on the same plane, and the second clamping jaw and the fourth clamping jaw are positioned on the other plane.

3. The four jaw pulley removal apparatus of claim 1, wherein: the first jaw, the second jaw, the third jaw and the fourth jaw are hinged through bolts.

4. A four jaw pulley removal apparatus as claimed in claim 3, wherein: the first clamping jaw, the second clamping jaw, the third clamping jaw and the fourth clamping jaw are provided with adjusting long holes, and bolts penetrate through the adjusting long holes to fix the clamping jaw assemblies.

5. The four jaw pulley removal apparatus of claim 1, wherein: adjusting holes are formed in the first stop block and the second stop block, threads are formed in the first pull rod, the second pull rod, the third pull rod and the fourth pull rod, and the first pull rod, the second pull rod, the third pull rod and the fourth pull rod penetrate through the adjusting holes and are in threaded connection with the first stop block and the second stop block.

6. The four jaw pulley removal apparatus of claim 1, wherein: the first stop block and the second stop block are provided with threaded holes at the central positions, and the ejector rod penetrates through the threaded holes to be in threaded connection with the first stop block and the second stop block.

7. The four jaw pulley removal apparatus of claim 1, wherein: the end parts of the ejector rod, the first pull rod, the second pull rod, the third pull rod and the fourth pull rod are provided with anti-falling nuts.