CN215470871U

CN215470871U - Motor shaft end gear disassembling tool

Info

Publication number: CN215470871U
Application number: CN202122038566.1U
Authority: CN
Inventors: 蔺朝辉
Original assignee: Baoji Daqin Textile Co ltd
Current assignee: Baoji Daqin Textile Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-01-11
Anticipated expiration: 2031-08-26

Abstract

Providing a motor shaft end gear disassembling tool which comprises base plates which are oppositely combined, wherein the base plates are provided with notches, and when the base plates are oppositely combined up and down, the notches are combined into a complete stepped hole; the outsides of the involution parts of the base plates are respectively provided with an outward-turned horizontal connecting lug plate; the horizontal connecting lug plates are arranged in a left-right axial symmetry mode by taking the base plate as a center; the horizontal connecting lug plate body is provided with a vertical through hole; the first fastening bolt penetrates through the through hole, and the penetrating end of the first fastening bolt is screwed with the adaptive nut; the nut gradually tightens the two substrates up and down to be fixedly connected into a whole; the substrate plate body is provided with at least two internal thread through holes; the internal thread through hole is screwed and matched with the second fastening bolt; after the second fastening bolt is screwed and penetrates through the internal thread through hole, the penetrating end of the second fastening bolt tightly pushes the vertical end surface of the outer side of the motor, and the reaction force of the vertical end surface of the outer side of the motor on the back surface of the substrate pushes the substrate to move outwards to disassemble the shaft end gear of the motor. The utility model has simple structure, simple and convenient installation and operation, and is economic, practical and reliable.

Description

Motor shaft end gear disassembling tool

Technical Field

The utility model belongs to the technical field of manual disassembling tools, and particularly relates to a disassembling tool for a gear at the shaft end of a motor.

Background

The motor shaft and the shaft end gear of part of the motors are fixedly installed in an interference fit mode, and the motor shaft and the shaft end gear need to be assisted by a special tool for detaching the motor shaft and the shaft end gear. In the prior art, a motor gear dismounting tool disclosed in the publication number CN211841827U has the following problems in the specific use process: firstly, the technical scheme adopts a second bolt to oppositely and tightly connect an upper substrate and a lower substrate into a whole, wherein the lower substrate is provided with an internal thread hole, and the upper substrate is provided with a through hole; on one hand, the processing precision and the matching degree are higher; on the other hand, as the upper and lower substrates are not fastened by nut members, the clamping effect of the upper and lower substrates on the motor shaft is realized, the lower substrate must be supported by hand, and the lower substrate is supported by continuous force application, so that the second bolt can be ensured to be continuously screwed into the inner threaded hole of the lower substrate, and the clamping and fastening of the upper and lower substrates on the motor shaft are realized. It can be seen that this construction makes the clamping operation of the motor shaft very laborious and the clamping tightening degree limited. Secondly, in this technical scheme, when motor shaft end gear dismantles, need utilize pulling equipment to connect the tractive hole like the pneumatic cylinder, then use pulling equipment to draw the arm-tie, through the first bolt of arm-tie tractive, rely on the screw thread of first bolt to draw the base plate, realize pulling out of axle end gear and dismantle. In the process, firstly, the structure is complex, the number of components is large, particularly the connection reliability of the drawing hole and the drawing equipment and the connection reliability of the first bolt and the threaded hole in the base plate, and multiple factors determine whether the gear can be pulled out or not; therefore, the dismounting tool is complex in structure, whether the gear can be successfully dismounted is determined by the depth of the thread teeth of the first bolt and the rigidity of the teeth, the force application point is too weak, and the tool is very easy to damage. In order to realize reliable clamping and fixing of the tool and the motor shaft and reduce clamping difficulty; meanwhile, the gear is disassembled by the tool through a more simplified and reliable structure. The following improvement technical scheme is proposed.

SUMMERY OF THE UTILITY MODEL

The technical problems solved by the utility model are as follows: the utility model provides a motor shaft end gear extracting tool, adopts the structure of retrenching more, reliable, operating more portably to solve the dismantlement problem of motor shaft end gear.

The technical scheme adopted by the utility model is as follows: the motor shaft end gear disassembling tool comprises two oppositely combined base plates, wherein notches are formed in the two base plates, and when the two base plates are oppositely combined up and down, the two notches are combined into a complete stepped hole; the outsides of the involution parts of the base plates are respectively provided with an outward-turned horizontal connecting lug plate; the horizontal connecting lug plates are arranged in a left-right axial symmetry mode by taking the base plate as a center; the horizontal connecting lug plate body is provided with a vertical through hole; the first fastening bolt penetrates through the through hole, and the penetrating end of the first fastening bolt is screwed with the adaptive nut; the first fastening bolt is gradually tightened by the nut, and the two substrates are tightened up and down by the nut to be fixedly connected into a whole; the substrate plate body is provided with at least two internal thread through holes; the internal thread through holes are symmetrically arranged by taking the stepped hole as a center; the internal thread through hole is screwed and matched with the second fastening bolt; after the second fastening bolt is screwed and penetrates through the internal thread through hole, the penetrating end of the second fastening bolt tightly pushes the vertical end face of the outer side of the motor, the substrate is pushed to move outwards in the axial direction through the reaction force of the vertical end face of the outer side of the motor on the back face of the substrate, and the substrate moving outwards in the axial direction is pushed to move outwards in the axial direction through the stepped hole to push the shaft end gear of the motor so as to disassemble the shaft end gear of the motor.

In the above technical solution, further: the stepped hole is provided with a first-order boss; the first-order boss abuts against the end face of the inner side shaft of the gear at the end of the adaptive motor shaft, and the first-order boss is used for disassembling the gear at the end of the motor shaft.

In the above technical solution, further: the first fastening bolt and the second fastening bolt are both hexagon socket head cap screws.

In the above technical solution, further: when the number of the internal thread through holes is three, the three internal thread through holes are arranged in a central symmetry mode by taking the stepped hole as a center; when the number of the internal thread through holes is two or four, the internal thread through holes are arranged in a left-right axial symmetry mode by taking the stepped hole as the center.

Compared with the prior art, the utility model has the advantages that:

1. the utility model adopts the inner hexagon bolt, has larger stress area than the common cross or straight bolt, and the hexagon hole is cylindrical, so the spanner is not easy to slide out, has larger stress and is not easy to slide.

2. When the upper substrate and the lower substrate are aligned, the first fastening bolt is continuously tightened along with the nut, acting force is not required to be applied to the substrate, the motor shaft can be clamped by the substrate along with continuous fastening of the nut, the operation is simple, labor is saved, and the clamping is more reliable.

3. According to the utility model, the pulling equipment is not needed to be connected with a tool, a pulling plate is not needed, a wearing part is not needed, but a second fastening bolt which is continuously screwed in is utilized, the second fastening bolt is utilized to prop against the outer vertical end surface of the motor, the base plate is pushed to move outwards in the axial direction by the reaction force of the outer vertical end surface of the motor to the back surface of the base plate, and the base plate which moves outwards in the axial direction is further pushed to move outwards in the axial direction by the stepped hole to push the gear at the shaft end of the motor so as to disassemble the gear at the shaft end of the motor; simple structure, difficult damage, simple operation, economy and practicality.

Drawings

FIG. 1 is a front view of the present invention with a second fastening bolt removed;

FIG. 2 is a perspective view of FIG. 1 including a second fastening bolt;

FIG. 3 is a front view of another embodiment of an internally threaded through hole of the present invention;

in the figure: 1-base plate, 2-notch, 3-stepped hole, 4-horizontal connecting lug plate, 5-through hole, 6-first fastening bolt, 7-nut, 8-internal thread through hole and 9-second fastening bolt.

Detailed Description

Specific embodiments of the present invention are described below with reference to fig. 1-3.

The motor shaft end gear removal tool (as shown in fig. 1 and 3) comprises two base plates 1 which are butted together. The substrate 1 is of a semi-arc substrate structure, and the two semi-arc substrates form a complete disc.

The two base plates 1 are provided with notches 2, and when the two base plates 1 are vertically combined together, the two notches 2 are combined into a complete stepped hole 3. The structure of the stepped hole 3 is the same as that of a base plate stepped hole in the prior art, and is used for abutting against the inner side shaft end face of a motor shaft end gear to be disassembled so as to push the motor shaft end gear to move axially and disassemble the shaft end gear.

The improvement of the utility model lies in that: the outer sides of the involution parts of the base plates 1 are respectively provided with an eversion horizontal connecting lug plate 4; the horizontal connecting ear plates 4 are arranged in a left-right axial symmetry mode by taking the substrate 1 as a center; the plate body of the horizontal connecting lug plate 4 is provided with a vertical through hole 5; a first fastening bolt 6 penetrates through the through hole 5, and the penetrating end of the first fastening bolt 6 is screwed with an adaptive nut 7; the nut 7 gradually tightens the first fastening bolt 6, and simultaneously, the two substrates 1 are tightened up and down and fixedly connected into a whole through the nut 7. Namely, the first fastening bolt 6 is continuously screwed along with the nut 7, and the upper horizontal connecting lug plate 4 and the lower horizontal connecting lug plate 4 are vertically pressed, fastened and fixedly connected into a whole by the end face of the inner side shaft of the screwed nut 7, so that manual lifting and force application are replaced. Namely, the nut 7 is continuously screwed, and the nut 7 gradually pulls the two substrates 1 up and down to be fixedly connected into a whole. Compared with the substrate fastening structure without nut installation in the background art in the prior art, the motor shaft can be gradually clamped by the upper substrate 1 and the lower substrate 1 without the application of force by the hand-supporting substrate 1 but automatically by the axial displacement of the nut 7. Therefore, the improvement of the structure enables the operation of clamping the motor shaft by the upper and lower substrates 1 to be simpler, more convenient and more labor-saving.

Moreover, the base plate 1 is provided with at least two internal thread through holes 8; the internal thread through hole 8 is arranged symmetrically by taking the stepped hole 3 as a center.

(embodiment shown in fig. 3) in the above embodiment, further: when the internal thread through holes 8 are three, the three internal thread through holes 8 are arranged in a central symmetry manner by taking the stepped hole 3 as a center. (as shown in fig. 1 and 2) when there are two or four female through holes 8, the female through holes 8 are arranged in a left-right axial symmetry with the stepped hole 3 as the center. The internal thread through holes 8 are symmetrically arranged, and the force application points of the bolt body shaft end face of the second fastening bolt 9 described later on, which faces the vertical end face of the outer side of the motor, are distributed more uniformly, so that the gear at the shaft end of the motor can be conveniently and stably pushed out.

Namely on the basis: the internal thread through hole 8 is screwed and matched with a second fastening bolt 9; after the second fastening bolt 9 is screwed and penetrates through the internal thread through hole 8, the second fastening bolt 9 abuts against the vertical end face of the outer side of the motor through the bolt body shaft end face of the second fastening bolt 9 from the penetrating end of the back face of the substrate 1, the axial reverse thrust acting force of the second fastening bolt 9 and the back face of the substrate 1 is exerted through the vertical end face of the outer side of the motor, the substrate 1 is pushed to move outwards in the axial direction by the reverse thrust axial acting force, and the substrate 1 which moves outwards in the axial direction pushes the motor shaft end gear to move outwards in the axial direction through the stepped hole 3 so as to disassemble the motor shaft end gear.

In the above embodiment, further: the stepped hole 3 is provided with a first-order boss; the first-order boss abuts against the inner side shaft end face of the gear at the end of the adaptive motor shaft, and the first-order boss is used for disassembling the gear at the end of the motor shaft. The motor shaft end gear to be disassembled is brought into the 3-step bosses of the stepped hole, and when the motor shaft end gears of different models need to be replaced, the motor shaft end gear disassembling tools of the corresponding models are replaced. Motor shaft end gear extracting tool of different models has not the shoulder hole 3 of equidimension.

In the above embodiment, further: the first fastening bolt 6 and the second fastening bolt 9 are both hexagon socket head cap bolts. The utility model adopts the inner hexagon bolt, has larger stress area than the common cross or straight bolt, and the hexagon hole is cylindrical, so the spanner is not easy to slide out, has larger stress, is not easy to slide, and is more reliable.

The working principle of the utility model is as follows: with upper and lower base plate 1 to closing the centre gripping motor shaft, pass upper and lower base plate 1's through-hole 5 with first fastening bolt 6, through-hole 5 need not finish machining and makes, through-hole 5 only need with 6 clearance adaptations of first fastening bolt, can pass first fastening bolt 6 in through-hole 5 can, conveniently simplify the finish machining degree of through-hole 5, make things convenient for the quick installation of first fastening bolt 6 on through-hole 5. After the first fastening bolt 6 penetrates through the through hole 5, the nut 7 is screwed at the penetrating end of the first fastening bolt 6, the nut 7 continuously screws the first fastening bolt 6, simultaneously, the inner side end face of the nut 7 gradually and tightly adheres to the horizontal connecting lug plates 4 of the upper and lower substrates 1, and the horizontal connecting lug plates 4 drive the upper and lower substrates 1 to clamp the motor shaft, so that the motor shaft is clamped and fixed on the motor shaft. Then, respectively screwing and installing second fastening bolts 9 on the internal thread through holes 8 of the base plate 1, along with continuous screwing of the second fastening bolts 9, after the second fastening bolts 9 extend out of the back face of the base plate 1, the shaft end faces of the second fastening bolts 9 can abut against the vertical end faces outside the motor, along with continuous screwing of the second fastening bolts 9, the vertical end faces outside the motor can apply reaction thrust to the second fastening bolts 9 and the base plate 1, the axial reaction thrust is utilized to push the base plate 1 to move outwards in the axial direction, the base plate 1 moving outwards in the axial direction pushes the motor shaft end gear to move outwards through the stepped hole 3 of the base plate 1, and therefore the motor shaft gear is detached from the motor.

From the above description it can be found that: the utility model adopts the inner hexagon bolt, has larger stress area than the common cross or straight bolt, and the hexagon hole is cylindrical, so the spanner is not easy to slide out, has larger stress, is not easy to slide, and is more reliable.

When the upper substrate 1 and the lower substrate 1 are aligned, the first fastening bolt 6 is continuously tightened along with the nut 7, the substrate 1 is not required to be applied with a hand-push acting force, the motor shaft can be clamped by the substrate 1 along with the continuous fastening of the nut 7, the operation is simple, the labor is saved, and the clamping is more reliable.

According to the utility model, the pulling equipment is not needed to be connected with a tool, a pulling plate is not needed, a wearing part is not needed, the second fastening bolt 9 is utilized to tightly push the vertical end surface at the outer side of the motor, the substrate 1 is pushed to move outwards in the axial direction by the reaction thrust of the vertical end surface at the outer side of the motor to the back surface of the substrate 1, and the substrate 1 moving outwards in the axial direction pushes the gear at the shaft end of the motor to move outwards in the axial direction through the stepped hole 3 of the substrate 1 so as to disassemble the gear at the shaft end of the motor; simple structure, difficult damage, simple operation, economy and practicality.

In conclusion, the motor shaft end gear and the gear shaft are disassembled by adopting a more simplified structure, a more reliable structure and more convenient operation.

It should be understood that although the present description is described in terms of one embodiment, this embodiment does not include only a single embodiment, but such description is merely for clarity, and those skilled in the art will recognize that the embodiments described in this embodiment can be combined as appropriate to form other embodiments as would be understood by those skilled in the art.

The above-mentioned preferred embodiments are not intended to limit the scope of the present invention, so that equivalent variations made by the content of the claims of the present invention are included in the scope of the claims of the present invention; the components and materials used in the above examples are commercially available unless otherwise specified.

Claims

1. The motor shaft end gear disassembling tool comprises two base plates (1) which are butted together, wherein notches (2) are formed in the two base plates (1), and when the two base plates (1) are butted together up and down, the two notches (2) are combined into a complete stepped hole (3); the method is characterized in that: the outer sides of the involution parts of the base plates (1) are respectively provided with an eversion horizontal connecting lug plate (4); the horizontal connecting lug plates (4) are arranged in a left-right axial symmetry mode by taking the base plate (1) as a center; the plate body of the horizontal connecting lug plate (4) is provided with a vertical through hole (5); the first fastening bolt (6) penetrates through the through hole (5), and the penetrating end of the first fastening bolt (6) is screwed with the adaptive nut (7); the nut (7) gradually tightens the first fastening bolt (6), and the nut (7) tightens and fastens the two substrates (1) up and down to be fixedly connected into a whole; the plate body of the substrate (1) is provided with at least two internal thread through holes (8); the internal thread through holes (8) are symmetrically arranged by taking the stepped hole (3) as a center; the internal thread through hole (8) is screwed and matched with a second fastening bolt (9); after the second fastening bolt (9) is screwed and penetrates through the internal thread through hole (8), the second fastening bolt (9) penetrates through the end to tightly push the vertical end face of the outer side of the motor, the substrate (1) is pushed to move outwards in the axial direction through the reaction force of the vertical end face of the outer side of the motor on the back face of the substrate (1), and the substrate (1) moving outwards in the axial direction is pushed to move outwards through the stepped hole (3) to push the gear at the shaft end of the motor so as to disassemble the gear at the shaft end of the motor.

2. The motor shaft end gear removing tool as claimed in claim 1, wherein: the stepped hole (3) is provided with a first-order boss; the first-order boss abuts against the inner side shaft end face of the gear at the end of the adaptive motor shaft, and the first-order boss is used for disassembling the gear at the end of the motor shaft.

3. The motor shaft end gear removing tool as claimed in claim 1, wherein: the first fastening bolt (6) and the second fastening bolt (9) are both hexagon socket head cap screws.

4. The motor shaft end gear removing tool as claimed in claim 1, wherein: when the number of the internal thread through holes (8) is three, the three internal thread through holes (8) are arranged in a central symmetry manner by taking the stepped hole (3) as a center; when the number of the internal thread through holes (8) is two or four, the internal thread through holes (8) are arranged in a left-right axial symmetry mode by taking the stepped hole (3) as the center.