TWM626634U - Sleeve extractor for crankshaft clutch - Google Patents

Abstract

The present invention relates to a casing extractor for a crankshaft clutch, which comprises a sleeve body, one end is provided with a first threaded portion, the other end is provided with a screw hole, and the interior of the sleeve body is provided with a penetrating channel; at least one a tie ring, which is movably installed in the groove, a tightening hole is arranged inside the tie ring, and at least one cut groove is opened in the tie ring; a fixing seat is fixed on the sleeve body, and a fixing seat is arranged inside the fixing seat A through hole, the inner wall of the through hole is provided with a second threaded portion at a position corresponding to the first threaded portion, the second threaded portion and the first threaded portion are screwed and fixed to each other, so as to tighten the collar; a push The rod is combined with the sleeve body, the push rod is provided with a threaded section, and the threaded section is screwed to the screw hole. In order to save time and effort, the casing can be quickly extracted.

Description

Sleeve extractor for crankshaft clutch

The present invention relates to an extractor structure that can save time and effort to extract the casing.

At present, the structure of automatic transmission or stepless transmission on general locomotives, such as the new patent No. M573298 "Limiting structure of locomotive pulley group" announced on January 21, 108 of the Republic of China, discloses: including a drive disc, a shaft sleeve, a sliding disc and a limit sleeve; the driving disc is connected with a central shaft and has an externally inclined first belt action disc surface; the shaft sleeve is assembled on the central shaft, One end is provided with a contact surface which is in contact with the surface of the first belt action plate of the drive plate; the sliding plate is sleeved on the shaft sleeve with a set of contact holes, allowing reciprocating axial displacement along the shaft sleeve, and one end of the sliding plate is Opposite to the first belt action disc surface of the drive disc, an externally inclined second belt action disc surface is formed; the limiting sleeve is sleeved on the contact surface of the shaft sleeve. The setting of the limiting sleeve can limit the axial distance when the sliding plate slides to the end of the driving plate, change the distance between the second belt acting plate surface and the first belt acting plate surface, so as to change the speed change step and then change the torque. and acceleration performance, so that the locomotive can achieve a specific acceleration purpose.

However, the shaft sleeve in the previous case of the patent is assembled on the central shaft, and the shaft sleeve is generally called a sleeve, a sleeve, a pulley sleeve or a pulley sleeve. The axial displacement of the sliding plate on the central axis is blocked or restricted by the shaft sleeve, and the axial reciprocating movement is performed along the shaft sleeve. However, when the bushing is used for a long time, it is easy to be stuck on the central shaft due to thermal expansion, rust or dirt. Once the crankshaft clutch of the locomotive needs to be repaired, it is difficult and time-consuming to extract the bushing. Therefore, the relevant industry needs to heat the bushing with flame, and the thermal expansion coefficient of the bushing and the central shaft are different, so that the bushing can be separated from the central shaft after expansion. However, because the oil seal is easily burned and leaked after heating, it has its shortcomings in use.

Therefore, there is a new patent case No. M621068 "Sleeve Hand Tool" announced on December 11, 110 of the Republic of China, which discloses: using a sleeve structure, the sleeve of the hand tool is placed around the bearing sleeve, and then using the force Tighten the inner wall surface (side wall) of the screw and the sleeve structure to hold the bearing sleeve. At this time, the force-applying screw is screwed down by force, thereby pushing the pulley sleeve with force. the tube off the rusted crankshaft end.

The previous case of the patent used tightening screws to hold the pulley disc sleeves of different diameters. However, since the tightening screws need to be rotated to lock or loosen, it takes a lot of time, so it takes a lot of time to use not ideal.

In view of this, the current crankshaft clutch sleeve has the above-mentioned shortcomings during extraction. Therefore, the present invention provides a sleeve extractor for a crankshaft clutch, which includes a sleeve body, one end is provided with a first threaded portion, the other end is provided with a screw hole, and the sleeve body is provided with a penetrating channel inside; at least one a tie ring, which is movably installed in the groove, a tightening hole is arranged inside the tie ring, and at least one cut groove is opened in the tie ring; a fixing seat is fixed on the sleeve body, and a fixing seat is arranged inside the fixing seat A through hole, the inner wall of the through hole is provided with a second threaded portion at a position corresponding to the first threaded portion, the second threaded portion and the first threaded portion are screwed and fixed to each other, so as to tighten the collar; a push The rod is combined with the sleeve body, the push rod is provided with a threaded section, and the threaded section is screwed to the screw hole.

The cross section of the sleeve body is hexagonal.

A blocking portion with a reduced inner diameter is provided in the groove at a position corresponding to the first threaded portion, and the collar is blocked by the blocking portion and limited in the groove.

The blocking portion is connected with a conical surface, and two ends of the bundle ring are respectively provided with a conical portion matched with the conical surface, and the conical portion and the conical surface are moved relatively tightly.

A plurality of the grooves are respectively opened from one end of the two ends toward the other end of the above-mentioned bale.

A plurality of the collars with different inner diameters are provided above, so as to be selected and used with the sleeves of different diameters.

The outer peripheral edge of the above-mentioned fixed seat is provided with an embossed portion.

The outer periphery of the fixing seat is provided with corresponding two plane portions.

One end of the thread segment is provided with a rotating portion, and the other end is provided with a pushing portion.

The above technical features have the following advantages:

1. By screwing the fixed seat and the sleeve body to each other, the collar can quickly tighten the sleeve, so that the sleeve can be quickly fixed, which is convenient for the subsequent extraction process and saves the traditional knowledge The extractor is time consuming to hold the cannula with the tightening screw.

2. Further turning the push rod can quickly separate the casing from the central shaft in a time-saving and labor-saving manner.

3. According to the diameters of different casings, the appropriate inner diameter of the collar can be selected for the rapid extraction of casings.

4. It can solve the conventional method of flame heating in order to separate the shaft sleeve from the central shaft after expansion, so that the oil seal is easily burned and oil leaks, which can improve the shortcomings of the conventional sleeve extraction.

Please refer to the first, second and third figures. This creative embodiment includes: a sleeve body 1, a tie ring 2, a fixed seat 3 and a push rod 4, wherein:

The sleeve body 1 is hexagonal in cross section. One end of the sleeve body 1 is provided with a first threaded portion 11 on the outer periphery, and the other end is provided with a screw hole 12 . The sleeve body 1 is provided with a channel 13 penetrating through the two ends. A blocking portion 14 with a reduced inner diameter is provided in the channel 13 at a position corresponding to the first threaded portion 11 , and a tapered surface 15 is connected to the blocking portion 14 .

The collar 2 is set in the channel 13 of the sleeve body 1 , and is blocked by the blocking portion 14 to be limited in the channel 13 . Two ends of the collar 2 are respectively provided with a conical portion 21 matched with the conical surface 15 . There is a tightening hole 22 in the inside of the tow ring 2 , and a plurality of slit grooves 23 are respectively opened on the outer periphery of the two ends from one end to the other end. The system can be provided with a plurality of the collars 2 with different inner diameters, so as to be used with the sleeves of different diameters.

The fixing base 3 is fixed on the sleeve body 1 . A through hole 31 is formed inside the fixing seat 3 , and a second threaded portion 32 is defined on the inner wall of the through hole 31 at a position corresponding to the first threaded portion 11 . The second threaded portion 32 is connected to the first threaded portion. 11 are screwed and fixed to each other, so as to tighten the collar 2 . An embossed portion 33 and two corresponding flat portions 34 are provided on the outer periphery of the fixing base 3 .

The push rod 4 is combined with the sleeve body 1 . The push rod 4 is provided with a threaded section 41 , and the threaded section 41 is screwed to the screw hole 12 of the sleeve body 1 . One end of the threaded section 41 is provided with a rotating portion 42 , and the other end is provided with a pushing portion 43 .

When using, as shown in the first, fourth and fifth figures, firstly, fit the fixed seat 3 to a sleeve B to be extracted from a crankshaft clutch A, and then according to the According to the size of the diameter, select the appropriate collar 2 and fit it on the sleeve B. Then, the sleeve body 1 is sleeved on the outer edge of the collar 2 , and is blocked by the blocking portion 14 , so that the collar 2 is restricted in the groove 13 . Then, the second threaded portion 32 of the fixing base 3 and the first threaded portion 11 of the sleeve body 1 are screwed together. At this time, the embossed portion 33 of the fixing base 3 can be held by hand to tighten the fixing base 3, or a hand tool such as a wrench can be used to clamp the corresponding two flat portions 34 to tighten the fixing base 3. Fixture 3. When the fixing seat 3 is tightened, the tapered portion 21 at one end of the ring 2 can be moved relative to the tapered surface 15 to be tightened. When the fixing seat 3 is screwed to the sleeve body 1, the The collar 2 is fixed in the channel 13 of the sleeve body 1 . When the collar 2 is tightened, the slits 23 on the collar 2 can be elastically contracted to tighten the sleeve B, so that the sleeve B is fixed to the tightening of the collar 2 In the hole 22 , the sleeve body 1 , the collar 2 , the fixing seat 3 and the sleeve B can be fixed and integrated into one.

As shown in Figure 1, Figure 5 and Figure 6, the threaded section 41 of the push rod 4 is then screwed into the screw hole 12 of the sleeve body 1, and can be held by hand in the screw hole 12. The moving part 42, or a hand tool such as a wrench, is clamped on the rotating part 42, and then forced to rotate, so that the threaded section 41 rotates forward in the screw hole 12, and faces a fixed part of the sleeve B. The central axis C moves until the pushing portion 43 of the push rod 4 abuts against the end of the central axis C. When the pushing portion 43 touches the end of the central axis C, the threaded section 41 will no longer advance in the screw hole 12, but will only rotate. When the threaded section 41 continues to rotate, the sleeve body 1 Then, the screw hole 12 rotates in the reverse direction on the threaded section 41 and retreats. When the sleeve body 1 rotates and retreats, the collar 2 is jointly driven to move backward through the fixing seat 3 . Since the collar 2 has tightened the sleeve B, the collar 2 can synchronously drive the sleeve B to move backward relative to the central axis C until the sleeve B is separated from the central axis C.

In this way, by rotating the fixing seat 3 and screwing the sleeve body 1, the collar 2 can quickly tighten the sleeve B, so that the sleeve B can be quickly fixed, so the conventional knowledge can be saved. The time the extractor holds the cannula B with the tightening screw. By further rotating the push rod 4, the sleeve B and the central axis C can be quickly separated in a time-saving and labor-saving manner. According to the diameters of different sleeves B, the collar 2 suitable for the inner diameter can be selected, so that the process of extracting the sleeves B can be performed quickly.

Based on the description of the above-mentioned embodiments, one can fully understand the operation, use and effects of the present creation, but the above-mentioned embodiments are only the preferred embodiments of the present creation, and should not limit the implementation of the present creation. The scope, that is, the simple equivalent changes and modifications made according to the scope of the patent application and the description of the creation, are all within the scope of the creation.

1: Sleeve body 11: The first thread part 12: Screw holes 13: Channel 14: Blocking part 15: Cone 2: girdle 21: Cone 22: Tightening holes 23: Cut the trench 3: Fixed seat 31: Through hole 32: Second thread part 33: Embossing part 34: Flat part 4: Push the lever 41: Threaded segment 42: Rotary part 43: Pushing Department A: Crankshaft clutch B: casing C: Center axis

[Figure 1] is a three-dimensional exploded view of this creative embodiment.

[Second Figure] is a three-dimensional combined view of this creative embodiment.

[Figure 3] is a combined cross-sectional view of an embodiment of the present invention.

[FIG. 4] is a three-dimensional appearance view of the crankshaft clutch according to the embodiment of the present invention.

[FIG. 5] is a schematic diagram of the embodiment of the present invention being fixed on the sleeve of the crankshaft clutch.

[Fig. 6] is a schematic diagram of starting to rotate the push rod to pull out the sleeve according to the embodiment of the present invention.

1: Sleeve body

11: The first thread part

12: Screw holes

13: Channel

14: Blocking part

15: Cone

2: girdle

21: Cone

22: Tightening holes

23: Cut the trench

3: Fixed seat

31: Through hole

32: Second thread part

33: Embossing part

34: Flat part

4: Push the lever

41: Threaded segment

42: Rotary part

43: Pushing Department

Claims (9)

A casing extractor for a crankshaft clutch, comprising: a sleeve body, one end is provided with a first threaded portion, the other end is provided with a screw hole, and the interior of the sleeve body is provided with a groove; at least one bundle ring, which is movably arranged in the channel, a securing hole is arranged inside the bundle ring, and at least one sectional groove is opened in the bundle ring; A fixing seat is fixed on the sleeve body, a through hole is arranged inside the fixing seat, a second threaded portion is arranged on the inner wall of the through hole at a position corresponding to the first threaded portion, and the second threaded portion is connected with the first threaded portion. The first threaded portions are screwed and fixed with each other, so as to tighten the collar; A push rod is combined with the sleeve body, the push rod is provided with a threaded section, and the threaded section is screwed into the screw hole. The sleeve extractor of the crankshaft clutch according to claim 1, wherein the section of the sleeve body is hexagonal. The sleeve extractor for crankshaft clutch as claimed in claim 1, wherein a blocking portion with a reduced inner diameter is provided in the groove at a position corresponding to the first threaded portion, and the collar is blocked by the blocking portion and is limited located in this channel. The sleeve extractor for crankshaft clutch as claimed in claim 3, wherein the blocking portion is connected with a conical surface, two ends of the collar are respectively provided with a conical portion matched with the conical surface, and the conical portion is connected with the conical surface. The relative movement of the cone faces is tight. The sleeve extractor for crankshaft clutch as claimed in claim 1, wherein a plurality of the slits are respectively opened from one end of the two ends to the other end of the collar. As claimed in claim 1, the bushing extractor for a crankshaft clutch is provided with a plurality of the collars with different inner diameters, so as to be used with bushings of different diameters. The sleeve extractor of the crankshaft clutch according to claim 1, wherein an embossing portion is provided on the outer periphery of the fixing seat. The sleeve extractor of the crankshaft clutch according to claim 1, wherein the outer peripheral edge of the fixed seat is provided with corresponding two plane parts. As claimed in claim 1, the sleeve extractor of the crankshaft clutch, wherein one end of the threaded section is provided with a rotating part, and the other end is provided with a pushing part.

Images