CN200999178Y

CN200999178Y - Cone gear hoisting device

Info

Publication number: CN200999178Y
Application number: CNU2007200949464U
Authority: CN
Inventors: 徐向红; 赵会
Original assignee: Tianjin Seri Machinery Equipment Corp Ltd
Current assignee: Tianjin Seri Machinery Equipment Corp Ltd
Priority date: 2007-01-15
Filing date: 2007-01-15
Publication date: 2008-01-02
Anticipated expiration: 2017-01-15

Abstract

The utility model relates to a bevel wheel hoisting device, of which the groove and the center hole are available on the two articulated draft bars. The ribbed plate and the steel plate are respectively welded at the articulated part and the lower end of the two draft bars. The connecting shaft is fixed to one end of tooth coupling which is installed at the lower end of the draft bar and in conformity with the external form of the bevel wheel to be hoisted. The connecting shaft is fixed to the steel plate. As the above structure is adopted, the tooth coupling can be conveniently replaced in case the internal surface thereof is damaged so as to save the materials and the manufacturing cost. Also, when the bevel wheel runs off the straight, the tooth coupling can be rotated separately so as to be subject to the bevel wheel. Therefore, both labor and time are saved. In a word, this utility model is provided with the handiness, the appropriate design and the exchangeability. In this case, the abrasion of the bevel wheel is reduced as hoisting.

Description

Bevel gear lifting tool

Technical field

The utility model belongs to a kind of lifting tool, particularly a kind of bevel gear lifting tool.

Background technology

The lifting tool plays an important role in mechanical manufacturing field, especially to the Assembly ﹠Disassembly of some large-scale parts, the quality of lifting tool will directly influence the surface quality of workpiece, just need a kind of suitable lifting tool during the Assembly ﹠Disassembly of heavy parts, as lifting in the engineering construction of  460 bevel gears and dismounting, used lifting tool is an integral structure at present, be that the toe joint hand is directly to be welded on the pull bar, when the inside face of toe joint hand has damage, in continuing the process of using, will have a strong impact on the surface quality of bevel gear, therefore just need to change the toe joint hand, but because the toe joint hand is welded on the pull bar, then can't change separately, can only change a whole set of lifting tool like this, not only cause the waste of resource, also increased cost simultaneously; If using this lifting tool bevel gear in addition is bevelled, because the toe joint hand can not indexing, a whole set of lifting tool is tilted, finish that this action is time-consuming, effort, unusual inconvenience.Moreover, two pull bars in the known lifting tool adopt spring cotter to connect, tolerance clearance is excessive, and pull bar is easy to cause all around looseningly during use, makes the center of two pull bars can't centering, the stressed not in-line of clipped object spare-bevel gear, be easy to generate moment of rotation, influence the lifting of bevel gear, a whole set of lifting tool has only limited its maximum open, its minimal openings is easy to the toe joint hand of damaging in use without limits.

Summary of the invention

The utility model provides a kind of bevel gear surface quality and easy to operate bevel gear lifting tool of guaranteeing for solving the technical matters that exists in the known technology.

The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is:

A kind of bevel gear lifting tool comprises the pull bar that is hinged, the toe joint hand that is installed in the pull bar lower end, and it is characterized in that: have groove and centre hole on the pull bar that is hinged by bearing pin, an end of bearing pin is fixed with fluted nut.Hinged place at two pull bars respectively is fixed with floor, is fixed with steel plate in the bottom of two pull bars, has the centre hole of level on the steel plate, also has tapped bore on the end face of steel plate.The end with being lifted the consistent toe joint hand of bevel gear profile that is installed in the pull bar lower end is fixed with adapter shaft, and adapter shaft is fixed on the steel plate by screw and back-up ring, between back-up ring and screw packing ring is installed.

The utility model can also adopt following technical measures:

Have the groove that becomes 3 ° of-5 ° of angles with X-axis on the pull bar that in the utility model, is hinged by bearing pin.

The interior angle place that is installed in the toe joint hand of pull bar lower end in the utility model is shaped on the technology fillet.

Advantage and the good effect that the utlity model has are: owing to increase between toe joint hand and two pull bars adapter shaft and steel plate are housed, adopt transition fit between the centre hole of steel plate and the adapter shaft, therefore, one: the damage phenomenon is arranged in case the inside face of toe joint hand takes place, just can realize the independent replacing of toe joint hand very easily, the purpose that reaches saving in material and reduce production costs.Its two: when the bevel gear run-off the straight, only need an independent rotary teeth take over centering and bevel gear position to get final product, laborsavingly save time again.In addition, link together by bearing pin between two pull bars, and the centre hole of bearing pin and pull bar adopts transition fit, make the stressed in-line of two pull bars like this, eliminated the hidden danger that produces moment of rotation, also on pull bar, have groove simultaneously, limited the maximum open and the minimal openings of pull bar, reduce damage the toe joint hand; The interior warp of toe joint hand is consistent with the external diameter of bevel gear size, reduces greatly the wearing and tearing of bevel gear when lifting.In a word, the utlity model has easy to operately, reasonable in design, have advantages such as interchangeability and cost-cutting.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cutaway view among Fig. 1.

Among the figure: 1. pull bar; 2. steel plate; 3. adapter shaft; 4. back-up ring; 5. screw; 6. packing ring; 7. toe joint hand; 8. floor; 9. bearing pin; 10. fluted nut; 11. spring cotter; 12. groove, 13. technology fillets.

The specific embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

See also Fig. 1 and Fig. 2, be shaped on centre hole on two pull bars 1, two pull bars are hinged by bearing pin 9, and bearing pin and centre hole adopt transition fit, and the other end of bearing pin is fixing with fluted nut 10 and spring cotter 11, and fluted nut is locking by spring cotter 11.To leave very little gap between fluted nut end face and the pull bar end face, can guarantee that like this tolerance clearance is unlikely to excessive between them, also be unlikely to too small, pull bar can not jumped in use back and forth, avoid the contact surface place to produce friction and influence the use of pull bar.Have the groove 12 that constitutes the α angle with X-axis in two pull bar hinged places, its α angle is between 3 °-5 °, and it is 3 ° that present embodiment is selected the α angle, and such two pull bars are meeting front and back centering just, thereby makes the toe joint hand 7 front and back centerings that are fixed on the pull bar lower end.The length of groove and inclination angle are to design according to the maximum open of lifting tool and the position of minimal openings, so groove also has the effect of restriction lifting tool openings of sizes.Two pull bar hinged places are as rotating face, and thickness can not be too little, in order to increase its intensity, also respectively are welded with floor 8 in two pull bar hinged places.Bottom at two pull bars respectively is welded with steel plate 2, the other end of steel plate has the centre hole of level, steel plate 2 is fixed with adapter shaft by screw 5, packing ring 6 and back-up ring 4, one end of adapter shaft 3 is welded on the toe joint hand 7, adopt transition fit between the horizontal centre hole on adapter shaft and the steel plate, the toe joint hand can be realized artificial rotation easily like this.When bevel gear tilted to place, a whole set of lifting tool that needn't tilt only needed the rotary teeth catcher just can aim at bevel gear, and the toe joint hand is installed, convenient disassembly has interchangeability.The other end of adapter shaft is welded on the toe joint hand 7, and the inboard shape of toe joint hand is consistent with the profile of bevel gear, for reducing the wearing and tearing of bevel gear when lifting, then at the interior angle place of toe joint hand technology fillet 13 is arranged.When two toe joint hands are installed must about, all around centering, do not produce moment of rotation in the time of could guaranteeing the lifting bevel gear, two pull bars are being produced under the tension, make the lower openings of two bars increase to the maximum open position, when aiming at bevel gear, opens in the toe joint hand two pull bars upper end, the pull bar lower openings just begins to reduce until compressing bevel gear like this, has at this moment begun to be lifted with the lifting tool of bevel gear by crane.

Claims

1. a bevel gear lifts tool, comprise the pull bar that is hinged, the toe joint hand that is installed in the pull bar lower end, it is characterized in that: on the pull bar that is hinged by bearing pin, have groove and centre hole, one end of bearing pin is fixed with fluted nut, hinged place at two pull bars respectively is fixed with floor, bottom at two pull bars is fixed with steel plate, have the centre hole of level on the steel plate, on the end face of steel plate, have tapped bore, the end with being lifted the consistent toe joint hand of bevel gear profile that is installed in the pull bar lower end is fixed with adapter shaft, and adapter shaft is fixed in steel plate.

2. bevel gear according to claim 1 lifting tool is characterized in that: have the groove that becomes 3 ° of-5 ° of angles with X-axis on the described pull bar that is hinged by bearing pin.

3. bevel gear lifting tool according to claim 1, it is characterized in that: the described interior angle place that is installed in the toe joint hand of pull bar lower end is provided with the technology fillet.